./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/egcd2-ll_valuebound10.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/egcd2-ll_valuebound10.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1af9610c3f2ac44e456633c84d2e8d0495857443026005d5daf994731366c726 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:03:07,345 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:03:07,402 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-28 04:03:07,407 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:03:07,408 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:03:07,437 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:03:07,438 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:03:07,438 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:03:07,438 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:03:07,439 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:03:07,439 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:03:07,439 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:03:07,439 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:03:07,439 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:03:07,439 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:03:07,439 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:03:07,440 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 04:03:07,440 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 04:03:07,440 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:03:07,440 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 04:03:07,440 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:03:07,440 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 04:03:07,440 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:03:07,440 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 04:03:07,440 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-28 04:03:07,441 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 04:03:07,443 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 04:03:07,443 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 04:03:07,443 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:03:07,443 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:03:07,444 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:03:07,444 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:03:07,444 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:03:07,444 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:03:07,444 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:03:07,444 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:03:07,444 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:03:07,444 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:03:07,445 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:03:07,445 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:03:07,445 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:03:07,445 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:03:07,445 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 04:03:07,445 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 04:03:07,446 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 04:03:07,446 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 04:03:07,446 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:03:07,446 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:03:07,446 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:03:07,446 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:03:07,446 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1af9610c3f2ac44e456633c84d2e8d0495857443026005d5daf994731366c726 [2024-11-28 04:03:07,760 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:03:07,770 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:03:07,772 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:03:07,774 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:03:07,774 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:03:07,776 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/nla-digbench-scaling/egcd2-ll_valuebound10.c [2024-11-28 04:03:10,754 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/data/46b639a93/3c29f769833d4e94833cd288065bda6e/FLAGbf79cbc96 [2024-11-28 04:03:11,022 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:03:11,023 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/sv-benchmarks/c/nla-digbench-scaling/egcd2-ll_valuebound10.c [2024-11-28 04:03:11,029 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/data/46b639a93/3c29f769833d4e94833cd288065bda6e/FLAGbf79cbc96 [2024-11-28 04:03:11,336 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/data/46b639a93/3c29f769833d4e94833cd288065bda6e [2024-11-28 04:03:11,338 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:03:11,340 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:03:11,341 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:03:11,342 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:03:11,346 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:03:11,347 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:03:11" (1/1) ... [2024-11-28 04:03:11,348 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50722b83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:03:11, skipping insertion in model container [2024-11-28 04:03:11,348 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:03:11" (1/1) ... [2024-11-28 04:03:11,363 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:03:11,577 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:03:11,588 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:03:11,611 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:03:11,625 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:03:11,625 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:03:11 WrapperNode [2024-11-28 04:03:11,625 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:03:11,627 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:03:11,627 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:03:11,627 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:03:11,634 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:03:11" (1/1) ... [2024-11-28 04:03:11,641 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:03:11" (1/1) ... [2024-11-28 04:03:11,664 INFO L138 Inliner]: procedures = 14, calls = 20, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 147 [2024-11-28 04:03:11,664 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:03:11,665 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:03:11,665 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:03:11,665 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:03:11,675 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:03:11" (1/1) ... [2024-11-28 04:03:11,675 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:03:11" (1/1) ... [2024-11-28 04:03:11,677 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:03:11" (1/1) ... [2024-11-28 04:03:11,692 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-28 04:03:11,696 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:03:11" (1/1) ... [2024-11-28 04:03:11,696 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:03:11" (1/1) ... [2024-11-28 04:03:11,700 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:03:11" (1/1) ... [2024-11-28 04:03:11,708 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:03:11" (1/1) ... [2024-11-28 04:03:11,714 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:03:11" (1/1) ... [2024-11-28 04:03:11,715 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:03:11" (1/1) ... [2024-11-28 04:03:11,716 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:03:11" (1/1) ... [2024-11-28 04:03:11,718 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:03:11,720 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:03:11,720 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:03:11,721 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:03:11,722 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:03:11" (1/1) ... [2024-11-28 04:03:11,728 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:03:11,740 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:03:11,753 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 04:03:11,756 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 04:03:11,785 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:03:11,785 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 04:03:11,785 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 04:03:11,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 04:03:11,786 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:03:11,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:03:11,786 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-28 04:03:11,786 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-28 04:03:11,851 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:03:11,852 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:03:12,511 INFO L? ?]: Removed 196 outVars from TransFormulas that were not future-live. [2024-11-28 04:03:12,512 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:03:12,527 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:03:12,527 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-28 04:03:12,527 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:03:12 BoogieIcfgContainer [2024-11-28 04:03:12,528 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:03:12,530 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 04:03:12,530 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 04:03:12,536 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 04:03:12,536 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:03:11" (1/3) ... [2024-11-28 04:03:12,537 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fb33b28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:03:12, skipping insertion in model container [2024-11-28 04:03:12,537 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:03:11" (2/3) ... [2024-11-28 04:03:12,537 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fb33b28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:03:12, skipping insertion in model container [2024-11-28 04:03:12,537 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:03:12" (3/3) ... [2024-11-28 04:03:12,538 INFO L128 eAbstractionObserver]: Analyzing ICFG egcd2-ll_valuebound10.c [2024-11-28 04:03:12,555 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 04:03:12,557 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG egcd2-ll_valuebound10.c that has 3 procedures, 161 locations, 1 initial locations, 2 loop locations, and 64 error locations. [2024-11-28 04:03:12,615 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:03:12,629 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@49cdaf05, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:03:12,629 INFO L334 AbstractCegarLoop]: Starting to check reachability of 64 error locations. [2024-11-28 04:03:12,633 INFO L276 IsEmpty]: Start isEmpty. Operand has 161 states, 82 states have (on average 1.8780487804878048) internal successors, (154), 147 states have internal predecessors, (154), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-28 04:03:12,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-28 04:03:12,640 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:03:12,641 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:03:12,642 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 04:03:12,647 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:03:12,647 INFO L85 PathProgramCache]: Analyzing trace with hash 136611064, now seen corresponding path program 1 times [2024-11-28 04:03:12,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:03:12,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843436971] [2024-11-28 04:03:12,657 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:03:12,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:03:12,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:03:12,797 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-28 04:03:12,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:03:12,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843436971] [2024-11-28 04:03:12,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [843436971] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:03:12,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2052362328] [2024-11-28 04:03:12,799 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:03:12,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:03:12,799 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:03:12,803 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:03:12,805 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 04:03:12,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:03:12,883 INFO L256 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 04:03:12,888 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:03:12,902 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-28 04:03:12,902 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:03:12,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2052362328] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:03:12,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:03:12,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-28 04:03:12,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439754192] [2024-11-28 04:03:12,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:03:12,912 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 04:03:12,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:03:12,935 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 04:03:12,936 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 04:03:12,938 INFO L87 Difference]: Start difference. First operand has 161 states, 82 states have (on average 1.8780487804878048) internal successors, (154), 147 states have internal predecessors, (154), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-28 04:03:12,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:03:12,983 INFO L93 Difference]: Finished difference Result 317 states and 363 transitions. [2024-11-28 04:03:12,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 04:03:12,986 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 25 [2024-11-28 04:03:12,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:03:12,996 INFO L225 Difference]: With dead ends: 317 [2024-11-28 04:03:12,997 INFO L226 Difference]: Without dead ends: 153 [2024-11-28 04:03:13,002 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 04:03:13,009 INFO L435 NwaCegarLoop]: 170 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:03:13,012 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:03:13,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2024-11-28 04:03:13,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 153. [2024-11-28 04:03:13,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 77 states have (on average 1.8311688311688312) internal successors, (141), 140 states have internal predecessors, (141), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-28 04:03:13,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 163 transitions. [2024-11-28 04:03:13,072 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 163 transitions. Word has length 25 [2024-11-28 04:03:13,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:03:13,073 INFO L471 AbstractCegarLoop]: Abstraction has 153 states and 163 transitions. [2024-11-28 04:03:13,073 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-28 04:03:13,073 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 163 transitions. [2024-11-28 04:03:13,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-28 04:03:13,075 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:03:13,075 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:03:13,085 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 04:03:13,279 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-28 04:03:13,279 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 04:03:13,280 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:03:13,280 INFO L85 PathProgramCache]: Analyzing trace with hash -1111730756, now seen corresponding path program 1 times [2024-11-28 04:03:13,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:03:13,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969405611] [2024-11-28 04:03:13,281 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:03:13,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:03:13,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:03:13,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2089016442] [2024-11-28 04:03:13,319 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:03:13,319 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:03:13,319 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:03:13,321 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:03:13,326 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 04:03:13,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:03:13,400 INFO L256 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-28 04:03:13,403 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:03:13,621 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-28 04:03:13,622 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:03:13,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:03:13,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969405611] [2024-11-28 04:03:13,623 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:03:13,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2089016442] [2024-11-28 04:03:13,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2089016442] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:03:13,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:03:13,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:03:13,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829791415] [2024-11-28 04:03:13,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:03:13,625 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:03:13,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:03:13,626 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:03:13,627 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:03:13,627 INFO L87 Difference]: Start difference. First operand 153 states and 163 transitions. Second operand has 7 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-28 04:03:14,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:03:14,038 INFO L93 Difference]: Finished difference Result 153 states and 163 transitions. [2024-11-28 04:03:14,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:03:14,038 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) Word has length 25 [2024-11-28 04:03:14,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:03:14,040 INFO L225 Difference]: With dead ends: 153 [2024-11-28 04:03:14,040 INFO L226 Difference]: Without dead ends: 151 [2024-11-28 04:03:14,041 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:03:14,041 INFO L435 NwaCegarLoop]: 73 mSDtfsCounter, 102 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:03:14,042 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 238 Invalid, 366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 365 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 04:03:14,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2024-11-28 04:03:14,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 151. [2024-11-28 04:03:14,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 77 states have (on average 1.8051948051948052) internal successors, (139), 138 states have internal predecessors, (139), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-28 04:03:14,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 161 transitions. [2024-11-28 04:03:14,054 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 161 transitions. Word has length 25 [2024-11-28 04:03:14,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:03:14,055 INFO L471 AbstractCegarLoop]: Abstraction has 151 states and 161 transitions. [2024-11-28 04:03:14,056 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-28 04:03:14,056 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 161 transitions. [2024-11-28 04:03:14,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-28 04:03:14,056 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:03:14,057 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:03:14,065 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-28 04:03:14,261 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:03:14,261 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 04:03:14,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:03:14,262 INFO L85 PathProgramCache]: Analyzing trace with hash -103915026, now seen corresponding path program 1 times [2024-11-28 04:03:14,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:03:14,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203304854] [2024-11-28 04:03:14,263 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:03:14,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:03:14,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:03:14,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1386903414] [2024-11-28 04:03:14,303 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:03:14,303 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:03:14,303 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:03:14,307 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:03:14,310 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 04:03:14,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:03:14,362 INFO L256 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-28 04:03:14,364 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:03:14,547 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-28 04:03:14,548 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:03:14,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:03:14,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203304854] [2024-11-28 04:03:14,847 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:03:14,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1386903414] [2024-11-28 04:03:14,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1386903414] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:03:14,848 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:03:14,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-11-28 04:03:14,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165846703] [2024-11-28 04:03:14,849 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:03:14,849 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:03:14,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:03:14,850 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:03:14,850 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:03:14,850 INFO L87 Difference]: Start difference. First operand 151 states and 161 transitions. Second operand has 7 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-28 04:03:15,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:03:15,265 INFO L93 Difference]: Finished difference Result 151 states and 161 transitions. [2024-11-28 04:03:15,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:03:15,265 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 26 [2024-11-28 04:03:15,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:03:15,267 INFO L225 Difference]: With dead ends: 151 [2024-11-28 04:03:15,267 INFO L226 Difference]: Without dead ends: 150 [2024-11-28 04:03:15,267 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:03:15,268 INFO L435 NwaCegarLoop]: 73 mSDtfsCounter, 190 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:03:15,268 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 238 Invalid, 352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 04:03:15,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2024-11-28 04:03:15,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2024-11-28 04:03:15,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 77 states have (on average 1.7922077922077921) internal successors, (138), 137 states have internal predecessors, (138), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-28 04:03:15,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 160 transitions. [2024-11-28 04:03:15,279 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 160 transitions. Word has length 26 [2024-11-28 04:03:15,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:03:15,280 INFO L471 AbstractCegarLoop]: Abstraction has 150 states and 160 transitions. [2024-11-28 04:03:15,280 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-28 04:03:15,280 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 160 transitions. [2024-11-28 04:03:15,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-28 04:03:15,281 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:03:15,281 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:03:15,290 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-28 04:03:15,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:03:15,485 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr52ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 04:03:15,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:03:15,486 INFO L85 PathProgramCache]: Analyzing trace with hash -1012015952, now seen corresponding path program 1 times [2024-11-28 04:03:15,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:03:15,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491204217] [2024-11-28 04:03:15,487 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:03:15,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:03:15,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:03:15,743 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-28 04:03:15,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:03:15,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491204217] [2024-11-28 04:03:15,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491204217] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:03:15,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [14919502] [2024-11-28 04:03:15,744 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:03:15,744 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:03:15,744 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:03:15,746 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:03:15,750 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 04:03:15,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:03:15,802 INFO L256 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 04:03:15,804 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:03:15,836 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-28 04:03:15,836 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:03:15,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [14919502] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:03:15,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:03:15,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 8 [2024-11-28 04:03:15,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984542105] [2024-11-28 04:03:15,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:03:15,837 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:03:15,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:03:15,838 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:03:15,838 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:03:15,838 INFO L87 Difference]: Start difference. First operand 150 states and 160 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-28 04:03:16,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:03:16,175 INFO L93 Difference]: Finished difference Result 254 states and 286 transitions. [2024-11-28 04:03:16,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:03:16,176 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 40 [2024-11-28 04:03:16,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:03:16,177 INFO L225 Difference]: With dead ends: 254 [2024-11-28 04:03:16,178 INFO L226 Difference]: Without dead ends: 244 [2024-11-28 04:03:16,178 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:03:16,179 INFO L435 NwaCegarLoop]: 117 mSDtfsCounter, 88 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:03:16,179 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 216 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:03:16,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2024-11-28 04:03:16,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 201. [2024-11-28 04:03:16,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 124 states have (on average 1.782258064516129) internal successors, (221), 183 states have internal predecessors, (221), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-28 04:03:16,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 251 transitions. [2024-11-28 04:03:16,203 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 251 transitions. Word has length 40 [2024-11-28 04:03:16,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:03:16,203 INFO L471 AbstractCegarLoop]: Abstraction has 201 states and 251 transitions. [2024-11-28 04:03:16,203 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-28 04:03:16,203 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 251 transitions. [2024-11-28 04:03:16,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-28 04:03:16,204 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:03:16,204 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:03:16,213 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-28 04:03:16,405 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:03:16,405 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 04:03:16,406 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:03:16,406 INFO L85 PathProgramCache]: Analyzing trace with hash -1012016002, now seen corresponding path program 1 times [2024-11-28 04:03:16,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:03:16,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419714962] [2024-11-28 04:03:16,406 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:03:16,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:03:16,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:03:16,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1706577173] [2024-11-28 04:03:16,430 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:03:16,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:03:16,430 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:03:16,432 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:03:16,449 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 04:03:16,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:03:16,498 INFO L256 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 04:03:16,503 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:03:16,517 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-28 04:03:16,517 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:03:16,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:03:16,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419714962] [2024-11-28 04:03:16,518 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:03:16,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1706577173] [2024-11-28 04:03:16,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1706577173] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:03:16,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:03:16,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:03:16,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041528011] [2024-11-28 04:03:16,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:03:16,519 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:03:16,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:03:16,519 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:03:16,519 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:03:16,520 INFO L87 Difference]: Start difference. First operand 201 states and 251 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-28 04:03:16,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:03:16,673 INFO L93 Difference]: Finished difference Result 345 states and 445 transitions. [2024-11-28 04:03:16,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:03:16,674 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 40 [2024-11-28 04:03:16,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:03:16,676 INFO L225 Difference]: With dead ends: 345 [2024-11-28 04:03:16,677 INFO L226 Difference]: Without dead ends: 337 [2024-11-28 04:03:16,677 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:03:16,678 INFO L435 NwaCegarLoop]: 140 mSDtfsCounter, 83 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:03:16,678 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 270 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:03:16,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2024-11-28 04:03:16,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 298. [2024-11-28 04:03:16,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 213 states have (on average 1.784037558685446) internal successors, (380), 272 states have internal predecessors, (380), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-28 04:03:16,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 426 transitions. [2024-11-28 04:03:16,703 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 426 transitions. Word has length 40 [2024-11-28 04:03:16,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:03:16,703 INFO L471 AbstractCegarLoop]: Abstraction has 298 states and 426 transitions. [2024-11-28 04:03:16,704 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-28 04:03:16,704 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 426 transitions. [2024-11-28 04:03:16,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-28 04:03:16,705 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:03:16,705 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:03:16,716 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-28 04:03:16,909 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:03:16,909 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr54ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 04:03:16,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:03:16,910 INFO L85 PathProgramCache]: Analyzing trace with hash -1884715054, now seen corresponding path program 1 times [2024-11-28 04:03:16,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:03:16,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024330335] [2024-11-28 04:03:16,910 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:03:16,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:03:16,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:03:17,168 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-28 04:03:17,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:03:17,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024330335] [2024-11-28 04:03:17,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024330335] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:03:17,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1785983148] [2024-11-28 04:03:17,170 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:03:17,170 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:03:17,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:03:17,172 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:03:17,175 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-28 04:03:17,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:03:17,234 INFO L256 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 04:03:17,236 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:03:17,330 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-28 04:03:17,331 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:03:17,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1785983148] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:03:17,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:03:17,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2024-11-28 04:03:17,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942470075] [2024-11-28 04:03:17,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:03:17,332 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:03:17,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:03:17,333 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:03:17,333 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:03:17,333 INFO L87 Difference]: Start difference. First operand 298 states and 426 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-28 04:03:17,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:03:17,878 INFO L93 Difference]: Finished difference Result 317 states and 448 transitions. [2024-11-28 04:03:17,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:03:17,879 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 42 [2024-11-28 04:03:17,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:03:17,881 INFO L225 Difference]: With dead ends: 317 [2024-11-28 04:03:17,881 INFO L226 Difference]: Without dead ends: 316 [2024-11-28 04:03:17,882 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:03:17,882 INFO L435 NwaCegarLoop]: 77 mSDtfsCounter, 58 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:03:17,883 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 197 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 04:03:17,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2024-11-28 04:03:17,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 299. [2024-11-28 04:03:17,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 214 states have (on average 1.780373831775701) internal successors, (381), 273 states have internal predecessors, (381), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-28 04:03:17,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 427 transitions. [2024-11-28 04:03:17,903 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 427 transitions. Word has length 42 [2024-11-28 04:03:17,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:03:17,903 INFO L471 AbstractCegarLoop]: Abstraction has 299 states and 427 transitions. [2024-11-28 04:03:17,904 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-28 04:03:17,904 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 427 transitions. [2024-11-28 04:03:17,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-28 04:03:17,905 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:03:17,905 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:03:17,913 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-28 04:03:18,105 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-28 04:03:18,106 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 04:03:18,106 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:03:18,106 INFO L85 PathProgramCache]: Analyzing trace with hash -1884766688, now seen corresponding path program 1 times [2024-11-28 04:03:18,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:03:18,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843021076] [2024-11-28 04:03:18,107 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:03:18,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:03:18,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:03:18,267 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-28 04:03:18,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:03:18,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843021076] [2024-11-28 04:03:18,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [843021076] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:03:18,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [221209435] [2024-11-28 04:03:18,268 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:03:18,268 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:03:18,268 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:03:18,270 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:03:18,274 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-28 04:03:18,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:03:18,321 INFO L256 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 04:03:18,324 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:03:18,432 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-28 04:03:18,432 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:03:18,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [221209435] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:03:18,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:03:18,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 11 [2024-11-28 04:03:18,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901201181] [2024-11-28 04:03:18,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:03:18,434 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:03:18,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:03:18,434 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:03:18,434 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-11-28 04:03:18,435 INFO L87 Difference]: Start difference. First operand 299 states and 427 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-28 04:03:19,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:03:19,142 INFO L93 Difference]: Finished difference Result 380 states and 447 transitions. [2024-11-28 04:03:19,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:03:19,143 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 42 [2024-11-28 04:03:19,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:03:19,145 INFO L225 Difference]: With dead ends: 380 [2024-11-28 04:03:19,145 INFO L226 Difference]: Without dead ends: 379 [2024-11-28 04:03:19,145 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2024-11-28 04:03:19,146 INFO L435 NwaCegarLoop]: 93 mSDtfsCounter, 453 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 458 SdHoareTripleChecker+Valid, 285 SdHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:03:19,147 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [458 Valid, 285 Invalid, 271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 04:03:19,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2024-11-28 04:03:19,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 299. [2024-11-28 04:03:19,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 214 states have (on average 1.7757009345794392) internal successors, (380), 273 states have internal predecessors, (380), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-28 04:03:19,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 426 transitions. [2024-11-28 04:03:19,167 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 426 transitions. Word has length 42 [2024-11-28 04:03:19,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:03:19,167 INFO L471 AbstractCegarLoop]: Abstraction has 299 states and 426 transitions. [2024-11-28 04:03:19,168 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-28 04:03:19,168 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 426 transitions. [2024-11-28 04:03:19,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-28 04:03:19,168 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:03:19,168 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:03:19,178 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-28 04:03:19,369 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-28 04:03:19,369 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr55ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 04:03:19,369 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:03:19,370 INFO L85 PathProgramCache]: Analyzing trace with hash 1703375659, now seen corresponding path program 1 times [2024-11-28 04:03:19,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:03:19,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618546356] [2024-11-28 04:03:19,370 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:03:19,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:03:19,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:03:19,475 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-28 04:03:19,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:03:19,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618546356] [2024-11-28 04:03:19,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618546356] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:03:19,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [109011770] [2024-11-28 04:03:19,475 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:03:19,476 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:03:19,476 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:03:19,478 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:03:19,481 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-28 04:03:19,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:03:19,531 INFO L256 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 04:03:19,533 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:03:19,627 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-28 04:03:19,627 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:03:19,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [109011770] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:03:19,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:03:19,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2024-11-28 04:03:19,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767195156] [2024-11-28 04:03:19,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:03:19,628 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:03:19,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:03:19,628 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:03:19,628 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:03:19,629 INFO L87 Difference]: Start difference. First operand 299 states and 426 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-28 04:03:20,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:03:20,148 INFO L93 Difference]: Finished difference Result 317 states and 446 transitions. [2024-11-28 04:03:20,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:03:20,148 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 43 [2024-11-28 04:03:20,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:03:20,151 INFO L225 Difference]: With dead ends: 317 [2024-11-28 04:03:20,151 INFO L226 Difference]: Without dead ends: 316 [2024-11-28 04:03:20,151 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:03:20,152 INFO L435 NwaCegarLoop]: 78 mSDtfsCounter, 57 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:03:20,152 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 198 Invalid, 275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 04:03:20,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2024-11-28 04:03:20,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 300. [2024-11-28 04:03:20,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 215 states have (on average 1.7720930232558139) internal successors, (381), 274 states have internal predecessors, (381), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-28 04:03:20,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 427 transitions. [2024-11-28 04:03:20,177 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 427 transitions. Word has length 43 [2024-11-28 04:03:20,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:03:20,177 INFO L471 AbstractCegarLoop]: Abstraction has 300 states and 427 transitions. [2024-11-28 04:03:20,178 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-28 04:03:20,178 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 427 transitions. [2024-11-28 04:03:20,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-28 04:03:20,178 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:03:20,178 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:03:20,188 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-28 04:03:20,379 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-11-28 04:03:20,379 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 04:03:20,380 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:03:20,380 INFO L85 PathProgramCache]: Analyzing trace with hash 1701774893, now seen corresponding path program 1 times [2024-11-28 04:03:20,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:03:20,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136306763] [2024-11-28 04:03:20,380 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:03:20,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:03:20,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:03:20,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [617930390] [2024-11-28 04:03:20,395 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:03:20,395 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:03:20,395 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:03:20,397 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:03:20,403 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-28 04:03:20,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:03:20,455 INFO L256 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 04:03:20,456 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:03:20,522 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-28 04:03:20,522 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:03:20,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:03:20,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136306763] [2024-11-28 04:03:20,522 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:03:20,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [617930390] [2024-11-28 04:03:20,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [617930390] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:03:20,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:03:20,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:03:20,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518094389] [2024-11-28 04:03:20,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:03:20,523 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:03:20,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:03:20,523 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:03:20,523 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:03:20,524 INFO L87 Difference]: Start difference. First operand 300 states and 427 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-28 04:03:21,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:03:21,111 INFO L93 Difference]: Finished difference Result 379 states and 445 transitions. [2024-11-28 04:03:21,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:03:21,112 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 43 [2024-11-28 04:03:21,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:03:21,114 INFO L225 Difference]: With dead ends: 379 [2024-11-28 04:03:21,114 INFO L226 Difference]: Without dead ends: 378 [2024-11-28 04:03:21,115 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:03:21,115 INFO L435 NwaCegarLoop]: 94 mSDtfsCounter, 428 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 433 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:03:21,116 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [433 Valid, 300 Invalid, 280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 04:03:21,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2024-11-28 04:03:21,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 300. [2024-11-28 04:03:21,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 215 states have (on average 1.7674418604651163) internal successors, (380), 274 states have internal predecessors, (380), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-28 04:03:21,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 426 transitions. [2024-11-28 04:03:21,149 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 426 transitions. Word has length 43 [2024-11-28 04:03:21,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:03:21,150 INFO L471 AbstractCegarLoop]: Abstraction has 300 states and 426 transitions. [2024-11-28 04:03:21,150 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-28 04:03:21,150 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 426 transitions. [2024-11-28 04:03:21,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-28 04:03:21,152 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:03:21,152 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:03:21,161 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-28 04:03:21,353 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:03:21,353 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr56ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 04:03:21,354 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:03:21,354 INFO L85 PathProgramCache]: Analyzing trace with hash 1265038068, now seen corresponding path program 1 times [2024-11-28 04:03:21,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:03:21,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799950066] [2024-11-28 04:03:21,354 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:03:21,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:03:21,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:03:21,518 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-28 04:03:21,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:03:21,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799950066] [2024-11-28 04:03:21,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799950066] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:03:21,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [406936179] [2024-11-28 04:03:21,519 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:03:21,519 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:03:21,519 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:03:21,521 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:03:21,529 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-28 04:03:21,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:03:21,568 INFO L256 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:03:21,570 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:03:21,629 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-28 04:03:21,629 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:03:21,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [406936179] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:03:21,629 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:03:21,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2024-11-28 04:03:21,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205037464] [2024-11-28 04:03:21,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:03:21,630 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:03:21,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:03:21,631 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:03:21,631 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:03:21,631 INFO L87 Difference]: Start difference. First operand 300 states and 426 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-28 04:03:22,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:03:22,185 INFO L93 Difference]: Finished difference Result 349 states and 454 transitions. [2024-11-28 04:03:22,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:03:22,186 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 44 [2024-11-28 04:03:22,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:03:22,188 INFO L225 Difference]: With dead ends: 349 [2024-11-28 04:03:22,188 INFO L226 Difference]: Without dead ends: 345 [2024-11-28 04:03:22,188 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:03:22,189 INFO L435 NwaCegarLoop]: 110 mSDtfsCounter, 145 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:03:22,189 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 221 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 04:03:22,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2024-11-28 04:03:22,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 301. [2024-11-28 04:03:22,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 216 states have (on average 1.7407407407407407) internal successors, (376), 275 states have internal predecessors, (376), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-28 04:03:22,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 422 transitions. [2024-11-28 04:03:22,209 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 422 transitions. Word has length 44 [2024-11-28 04:03:22,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:03:22,209 INFO L471 AbstractCegarLoop]: Abstraction has 301 states and 422 transitions. [2024-11-28 04:03:22,209 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-28 04:03:22,209 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 422 transitions. [2024-11-28 04:03:22,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-28 04:03:22,210 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:03:22,210 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:03:22,220 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-28 04:03:22,410 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:03:22,411 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr57ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 04:03:22,411 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:03:22,411 INFO L85 PathProgramCache]: Analyzing trace with hash 561474637, now seen corresponding path program 1 times [2024-11-28 04:03:22,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:03:22,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355929412] [2024-11-28 04:03:22,411 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:03:22,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:03:22,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:03:22,508 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-28 04:03:22,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:03:22,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355929412] [2024-11-28 04:03:22,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [355929412] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:03:22,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1292146696] [2024-11-28 04:03:22,509 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:03:22,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:03:22,509 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:03:22,511 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:03:22,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-28 04:03:22,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:03:22,563 INFO L256 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:03:22,564 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:03:22,718 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-28 04:03:22,718 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:03:22,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1292146696] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:03:22,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:03:22,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2024-11-28 04:03:22,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433983287] [2024-11-28 04:03:22,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:03:22,719 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:03:22,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:03:22,720 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:03:22,720 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:03:22,720 INFO L87 Difference]: Start difference. First operand 301 states and 422 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-28 04:03:23,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:03:23,402 INFO L93 Difference]: Finished difference Result 348 states and 448 transitions. [2024-11-28 04:03:23,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:03:23,403 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 45 [2024-11-28 04:03:23,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:03:23,405 INFO L225 Difference]: With dead ends: 348 [2024-11-28 04:03:23,405 INFO L226 Difference]: Without dead ends: 344 [2024-11-28 04:03:23,405 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:03:23,406 INFO L435 NwaCegarLoop]: 116 mSDtfsCounter, 142 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:03:23,406 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 227 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 04:03:23,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2024-11-28 04:03:23,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 302. [2024-11-28 04:03:23,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 217 states have (on average 1.7142857142857142) internal successors, (372), 276 states have internal predecessors, (372), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-28 04:03:23,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 418 transitions. [2024-11-28 04:03:23,428 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 418 transitions. Word has length 45 [2024-11-28 04:03:23,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:03:23,428 INFO L471 AbstractCegarLoop]: Abstraction has 302 states and 418 transitions. [2024-11-28 04:03:23,428 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-28 04:03:23,428 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 418 transitions. [2024-11-28 04:03:23,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-28 04:03:23,429 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:03:23,431 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:03:23,440 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-28 04:03:23,631 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:03:23,632 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 04:03:23,632 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:03:23,632 INFO L85 PathProgramCache]: Analyzing trace with hash -1259260686, now seen corresponding path program 1 times [2024-11-28 04:03:23,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:03:23,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278810792] [2024-11-28 04:03:23,632 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:03:23,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:03:23,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:03:23,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [535800968] [2024-11-28 04:03:23,648 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:03:23,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:03:23,648 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:03:23,651 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:03:23,653 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-28 04:03:23,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:03:23,704 INFO L256 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 04:03:23,709 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:03:23,743 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-28 04:03:23,743 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:03:23,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:03:23,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278810792] [2024-11-28 04:03:23,744 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:03:23,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [535800968] [2024-11-28 04:03:23,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [535800968] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:03:23,744 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:03:23,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:03:23,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481506160] [2024-11-28 04:03:23,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:03:23,745 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:03:23,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:03:23,745 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:03:23,745 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:03:23,745 INFO L87 Difference]: Start difference. First operand 302 states and 418 transitions. Second operand has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 04:03:23,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:03:23,876 INFO L93 Difference]: Finished difference Result 350 states and 442 transitions. [2024-11-28 04:03:23,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:03:23,877 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 49 [2024-11-28 04:03:23,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:03:23,879 INFO L225 Difference]: With dead ends: 350 [2024-11-28 04:03:23,879 INFO L226 Difference]: Without dead ends: 346 [2024-11-28 04:03:23,879 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:03:23,880 INFO L435 NwaCegarLoop]: 148 mSDtfsCounter, 84 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:03:23,880 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 284 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:03:23,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2024-11-28 04:03:23,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 307. [2024-11-28 04:03:23,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 221 states have (on average 1.6923076923076923) internal successors, (374), 280 states have internal predecessors, (374), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-28 04:03:23,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 422 transitions. [2024-11-28 04:03:23,901 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 422 transitions. Word has length 49 [2024-11-28 04:03:23,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:03:23,901 INFO L471 AbstractCegarLoop]: Abstraction has 307 states and 422 transitions. [2024-11-28 04:03:23,901 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 04:03:23,901 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 422 transitions. [2024-11-28 04:03:23,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-28 04:03:23,903 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:03:23,903 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:03:23,913 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-28 04:03:24,104 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:03:24,104 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr58ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 04:03:24,105 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:03:24,105 INFO L85 PathProgramCache]: Analyzing trace with hash -1325184650, now seen corresponding path program 1 times [2024-11-28 04:03:24,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:03:24,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293796111] [2024-11-28 04:03:24,105 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:03:24,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:03:24,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:03:24,235 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-28 04:03:24,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:03:24,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293796111] [2024-11-28 04:03:24,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293796111] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:03:24,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1143283333] [2024-11-28 04:03:24,236 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:03:24,237 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:03:24,237 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:03:24,241 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:03:24,250 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-28 04:03:24,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:03:24,297 INFO L256 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:03:24,298 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:03:24,421 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-28 04:03:24,422 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:03:24,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1143283333] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:03:24,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:03:24,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2024-11-28 04:03:24,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574274148] [2024-11-28 04:03:24,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:03:24,423 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:03:24,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:03:24,423 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:03:24,423 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:03:24,424 INFO L87 Difference]: Start difference. First operand 307 states and 422 transitions. Second operand has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 04:03:24,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:03:24,722 INFO L93 Difference]: Finished difference Result 328 states and 426 transitions. [2024-11-28 04:03:24,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:03:24,723 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 51 [2024-11-28 04:03:24,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:03:24,724 INFO L225 Difference]: With dead ends: 328 [2024-11-28 04:03:24,724 INFO L226 Difference]: Without dead ends: 326 [2024-11-28 04:03:24,725 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:03:24,725 INFO L435 NwaCegarLoop]: 105 mSDtfsCounter, 163 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:03:24,726 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 214 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:03:24,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2024-11-28 04:03:24,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 307. [2024-11-28 04:03:24,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 221 states have (on average 1.6787330316742082) internal successors, (371), 280 states have internal predecessors, (371), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-28 04:03:24,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 419 transitions. [2024-11-28 04:03:24,744 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 419 transitions. Word has length 51 [2024-11-28 04:03:24,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:03:24,745 INFO L471 AbstractCegarLoop]: Abstraction has 307 states and 419 transitions. [2024-11-28 04:03:24,745 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 04:03:24,745 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 419 transitions. [2024-11-28 04:03:24,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-28 04:03:24,745 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:03:24,745 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:03:24,756 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-11-28 04:03:24,946 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:03:24,946 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr59ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 04:03:24,946 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:03:24,947 INFO L85 PathProgramCache]: Analyzing trace with hash 1868949008, now seen corresponding path program 1 times [2024-11-28 04:03:24,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:03:24,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015433418] [2024-11-28 04:03:24,947 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:03:24,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:03:24,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:03:25,052 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-28 04:03:25,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:03:25,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015433418] [2024-11-28 04:03:25,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015433418] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:03:25,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [751098454] [2024-11-28 04:03:25,053 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:03:25,053 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:03:25,053 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:03:25,055 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:03:25,060 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-28 04:03:25,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:03:25,117 INFO L256 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:03:25,119 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:03:25,219 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-28 04:03:25,219 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:03:25,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [751098454] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:03:25,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:03:25,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2024-11-28 04:03:25,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955140549] [2024-11-28 04:03:25,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:03:25,220 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:03:25,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:03:25,220 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:03:25,220 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:03:25,221 INFO L87 Difference]: Start difference. First operand 307 states and 419 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 04:03:25,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:03:25,470 INFO L93 Difference]: Finished difference Result 328 states and 423 transitions. [2024-11-28 04:03:25,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:03:25,471 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 52 [2024-11-28 04:03:25,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:03:25,475 INFO L225 Difference]: With dead ends: 328 [2024-11-28 04:03:25,475 INFO L226 Difference]: Without dead ends: 326 [2024-11-28 04:03:25,475 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:03:25,476 INFO L435 NwaCegarLoop]: 105 mSDtfsCounter, 225 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:03:25,477 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [234 Valid, 196 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:03:25,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2024-11-28 04:03:25,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 307. [2024-11-28 04:03:25,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 221 states have (on average 1.665158371040724) internal successors, (368), 280 states have internal predecessors, (368), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-28 04:03:25,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 416 transitions. [2024-11-28 04:03:25,499 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 416 transitions. Word has length 52 [2024-11-28 04:03:25,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:03:25,500 INFO L471 AbstractCegarLoop]: Abstraction has 307 states and 416 transitions. [2024-11-28 04:03:25,501 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 04:03:25,501 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 416 transitions. [2024-11-28 04:03:25,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-28 04:03:25,502 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:03:25,502 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:03:25,511 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-28 04:03:25,702 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-28 04:03:25,703 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 04:03:25,703 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:03:25,703 INFO L85 PathProgramCache]: Analyzing trace with hash -1095763850, now seen corresponding path program 1 times [2024-11-28 04:03:25,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:03:25,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520041239] [2024-11-28 04:03:25,703 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:03:25,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:03:25,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:03:25,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1786241251] [2024-11-28 04:03:25,717 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:03:25,717 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:03:25,717 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:03:25,721 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:03:25,722 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-28 04:03:25,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:03:25,773 INFO L256 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:03:25,776 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:03:25,821 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-28 04:03:25,821 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:03:25,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:03:25,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520041239] [2024-11-28 04:03:25,821 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:03:25,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1786241251] [2024-11-28 04:03:25,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1786241251] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:03:25,822 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:03:25,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:03:25,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604908876] [2024-11-28 04:03:25,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:03:25,822 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:03:25,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:03:25,822 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:03:25,823 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:03:25,823 INFO L87 Difference]: Start difference. First operand 307 states and 416 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 04:03:25,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:03:25,998 INFO L93 Difference]: Finished difference Result 344 states and 430 transitions. [2024-11-28 04:03:25,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:03:25,999 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 53 [2024-11-28 04:03:25,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:03:26,000 INFO L225 Difference]: With dead ends: 344 [2024-11-28 04:03:26,001 INFO L226 Difference]: Without dead ends: 342 [2024-11-28 04:03:26,002 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:03:26,010 INFO L435 NwaCegarLoop]: 131 mSDtfsCounter, 136 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 283 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:03:26,010 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 283 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:03:26,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2024-11-28 04:03:26,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 308. [2024-11-28 04:03:26,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 222 states have (on average 1.6531531531531531) internal successors, (367), 281 states have internal predecessors, (367), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-28 04:03:26,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 415 transitions. [2024-11-28 04:03:26,029 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 415 transitions. Word has length 53 [2024-11-28 04:03:26,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:03:26,030 INFO L471 AbstractCegarLoop]: Abstraction has 308 states and 415 transitions. [2024-11-28 04:03:26,030 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 04:03:26,030 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 415 transitions. [2024-11-28 04:03:26,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-28 04:03:26,031 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:03:26,032 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:03:26,041 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-28 04:03:26,232 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-28 04:03:26,232 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 04:03:26,233 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:03:26,233 INFO L85 PathProgramCache]: Analyzing trace with hash 391059108, now seen corresponding path program 1 times [2024-11-28 04:03:26,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:03:26,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872094505] [2024-11-28 04:03:26,233 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:03:26,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:03:26,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:03:26,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [302375513] [2024-11-28 04:03:26,246 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:03:26,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:03:26,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:03:26,250 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:03:26,254 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-28 04:03:26,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:03:26,310 INFO L256 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:03:26,311 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:03:26,389 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-28 04:03:26,390 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:03:26,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:03:26,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872094505] [2024-11-28 04:03:26,390 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:03:26,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [302375513] [2024-11-28 04:03:26,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [302375513] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:03:26,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:03:26,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:03:26,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628382411] [2024-11-28 04:03:26,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:03:26,391 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:03:26,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:03:26,391 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:03:26,392 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:03:26,392 INFO L87 Difference]: Start difference. First operand 308 states and 415 transitions. Second operand has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 04:03:26,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:03:26,722 INFO L93 Difference]: Finished difference Result 344 states and 427 transitions. [2024-11-28 04:03:26,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:03:26,723 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 54 [2024-11-28 04:03:26,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:03:26,725 INFO L225 Difference]: With dead ends: 344 [2024-11-28 04:03:26,725 INFO L226 Difference]: Without dead ends: 329 [2024-11-28 04:03:26,725 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:03:26,726 INFO L435 NwaCegarLoop]: 135 mSDtfsCounter, 134 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:03:26,726 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 287 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:03:26,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2024-11-28 04:03:26,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 296. [2024-11-28 04:03:26,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 211 states have (on average 1.6729857819905214) internal successors, (353), 270 states have internal predecessors, (353), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-28 04:03:26,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 399 transitions. [2024-11-28 04:03:26,743 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 399 transitions. Word has length 54 [2024-11-28 04:03:26,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:03:26,744 INFO L471 AbstractCegarLoop]: Abstraction has 296 states and 399 transitions. [2024-11-28 04:03:26,744 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 04:03:26,744 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 399 transitions. [2024-11-28 04:03:26,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-28 04:03:26,745 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:03:26,745 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:03:26,753 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2024-11-28 04:03:26,945 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-28 04:03:26,945 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 04:03:26,946 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:03:26,946 INFO L85 PathProgramCache]: Analyzing trace with hash 299559188, now seen corresponding path program 1 times [2024-11-28 04:03:26,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:03:26,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721493979] [2024-11-28 04:03:26,946 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:03:26,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:03:26,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:03:26,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1209821795] [2024-11-28 04:03:26,961 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:03:26,961 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:03:26,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:03:26,964 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:03:26,966 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-28 04:03:27,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:03:27,018 INFO L256 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:03:27,019 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:03:27,144 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-28 04:03:27,144 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:03:27,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:03:27,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721493979] [2024-11-28 04:03:27,144 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:03:27,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1209821795] [2024-11-28 04:03:27,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1209821795] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:03:27,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:03:27,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:03:27,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206598768] [2024-11-28 04:03:27,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:03:27,145 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:03:27,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:03:27,146 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:03:27,146 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:03:27,146 INFO L87 Difference]: Start difference. First operand 296 states and 399 transitions. Second operand has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 04:03:27,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:03:27,534 INFO L93 Difference]: Finished difference Result 320 states and 420 transitions. [2024-11-28 04:03:27,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:03:27,534 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 62 [2024-11-28 04:03:27,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:03:27,536 INFO L225 Difference]: With dead ends: 320 [2024-11-28 04:03:27,536 INFO L226 Difference]: Without dead ends: 319 [2024-11-28 04:03:27,537 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:03:27,537 INFO L435 NwaCegarLoop]: 83 mSDtfsCounter, 157 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:03:27,537 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 173 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 04:03:27,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2024-11-28 04:03:27,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 296. [2024-11-28 04:03:27,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 211 states have (on average 1.6682464454976302) internal successors, (352), 270 states have internal predecessors, (352), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-28 04:03:27,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 398 transitions. [2024-11-28 04:03:27,555 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 398 transitions. Word has length 62 [2024-11-28 04:03:27,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:03:27,556 INFO L471 AbstractCegarLoop]: Abstraction has 296 states and 398 transitions. [2024-11-28 04:03:27,556 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 04:03:27,556 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 398 transitions. [2024-11-28 04:03:27,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-28 04:03:27,557 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:03:27,557 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:03:27,566 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2024-11-28 04:03:27,761 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-28 04:03:27,761 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 04:03:27,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:03:27,762 INFO L85 PathProgramCache]: Analyzing trace with hash 696400335, now seen corresponding path program 1 times [2024-11-28 04:03:27,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:03:27,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848043113] [2024-11-28 04:03:27,762 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:03:27,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:03:27,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:03:27,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [360944018] [2024-11-28 04:03:27,776 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:03:27,776 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:03:27,776 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:03:27,778 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:03:27,781 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-28 04:03:27,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:03:27,837 INFO L256 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:03:27,838 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:03:27,948 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-28 04:03:27,948 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:03:27,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:03:27,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848043113] [2024-11-28 04:03:27,948 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:03:27,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [360944018] [2024-11-28 04:03:27,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [360944018] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:03:27,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:03:27,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:03:27,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256451219] [2024-11-28 04:03:27,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:03:27,949 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:03:27,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:03:27,949 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:03:27,949 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:03:27,950 INFO L87 Difference]: Start difference. First operand 296 states and 398 transitions. Second operand has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 04:03:28,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:03:28,273 INFO L93 Difference]: Finished difference Result 320 states and 419 transitions. [2024-11-28 04:03:28,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:03:28,273 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 63 [2024-11-28 04:03:28,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:03:28,275 INFO L225 Difference]: With dead ends: 320 [2024-11-28 04:03:28,275 INFO L226 Difference]: Without dead ends: 319 [2024-11-28 04:03:28,276 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:03:28,276 INFO L435 NwaCegarLoop]: 83 mSDtfsCounter, 156 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:03:28,276 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 173 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:03:28,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2024-11-28 04:03:28,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 296. [2024-11-28 04:03:28,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 211 states have (on average 1.6635071090047393) internal successors, (351), 270 states have internal predecessors, (351), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-28 04:03:28,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 397 transitions. [2024-11-28 04:03:28,295 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 397 transitions. Word has length 63 [2024-11-28 04:03:28,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:03:28,295 INFO L471 AbstractCegarLoop]: Abstraction has 296 states and 397 transitions. [2024-11-28 04:03:28,296 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 04:03:28,296 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 397 transitions. [2024-11-28 04:03:28,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-28 04:03:28,296 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:03:28,296 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:03:28,306 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2024-11-28 04:03:28,497 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-28 04:03:28,497 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 04:03:28,498 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:03:28,498 INFO L85 PathProgramCache]: Analyzing trace with hash -1272186614, now seen corresponding path program 1 times [2024-11-28 04:03:28,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:03:28,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262713096] [2024-11-28 04:03:28,498 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:03:28,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:03:28,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:03:28,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [740928166] [2024-11-28 04:03:28,520 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:03:28,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:03:28,520 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:03:28,522 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:03:28,526 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-28 04:03:28,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:03:28,581 INFO L256 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 04:03:28,582 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:03:28,746 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-11-28 04:03:28,747 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:03:28,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:03:28,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262713096] [2024-11-28 04:03:28,747 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:03:28,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [740928166] [2024-11-28 04:03:28,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [740928166] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:03:28,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:03:28,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:03:28,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892760700] [2024-11-28 04:03:28,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:03:28,748 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:03:28,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:03:28,749 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:03:28,749 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:03:28,749 INFO L87 Difference]: Start difference. First operand 296 states and 397 transitions. Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-28 04:03:28,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:03:28,946 INFO L93 Difference]: Finished difference Result 322 states and 418 transitions. [2024-11-28 04:03:28,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:03:28,947 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 73 [2024-11-28 04:03:28,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:03:28,949 INFO L225 Difference]: With dead ends: 322 [2024-11-28 04:03:28,949 INFO L226 Difference]: Without dead ends: 321 [2024-11-28 04:03:28,949 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:03:28,950 INFO L435 NwaCegarLoop]: 122 mSDtfsCounter, 88 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:03:28,950 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 224 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:03:28,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2024-11-28 04:03:28,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 296. [2024-11-28 04:03:28,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 211 states have (on average 1.6540284360189574) internal successors, (349), 270 states have internal predecessors, (349), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-28 04:03:28,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 395 transitions. [2024-11-28 04:03:28,974 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 395 transitions. Word has length 73 [2024-11-28 04:03:28,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:03:28,974 INFO L471 AbstractCegarLoop]: Abstraction has 296 states and 395 transitions. [2024-11-28 04:03:28,974 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-28 04:03:28,974 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 395 transitions. [2024-11-28 04:03:28,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-28 04:03:28,975 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:03:28,975 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:03:28,985 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2024-11-28 04:03:29,180 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:03:29,181 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 04:03:29,181 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:03:29,181 INFO L85 PathProgramCache]: Analyzing trace with hash -783079258, now seen corresponding path program 1 times [2024-11-28 04:03:29,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:03:29,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883791906] [2024-11-28 04:03:29,181 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:03:29,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:03:29,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:03:29,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [49956992] [2024-11-28 04:03:29,212 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:03:29,212 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:03:29,213 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:03:29,215 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:03:29,218 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-28 04:03:29,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:03:29,276 INFO L256 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 04:03:29,278 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:03:31,084 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-11-28 04:03:31,085 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:03:31,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:03:31,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883791906] [2024-11-28 04:03:31,085 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:03:31,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [49956992] [2024-11-28 04:03:31,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [49956992] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:03:31,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:03:31,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:03:31,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919339849] [2024-11-28 04:03:31,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:03:31,086 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:03:31,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:03:31,086 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:03:31,087 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=5, Unknown=1, NotChecked=0, Total=12 [2024-11-28 04:03:31,087 INFO L87 Difference]: Start difference. First operand 296 states and 395 transitions. Second operand has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-28 04:03:35,097 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:03:36,484 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:03:36,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:03:36,926 INFO L93 Difference]: Finished difference Result 322 states and 416 transitions. [2024-11-28 04:03:36,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:03:36,926 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 74 [2024-11-28 04:03:36,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:03:36,928 INFO L225 Difference]: With dead ends: 322 [2024-11-28 04:03:36,928 INFO L226 Difference]: Without dead ends: 321 [2024-11-28 04:03:36,928 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=6, Invalid=5, Unknown=1, NotChecked=0, Total=12 [2024-11-28 04:03:36,929 INFO L435 NwaCegarLoop]: 123 mSDtfsCounter, 43 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 321 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:03:36,929 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 321 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 147 Invalid, 2 Unknown, 0 Unchecked, 5.8s Time] [2024-11-28 04:03:36,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2024-11-28 04:03:36,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 296. [2024-11-28 04:03:36,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 211 states have (on average 1.6445497630331753) internal successors, (347), 270 states have internal predecessors, (347), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-28 04:03:36,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 393 transitions. [2024-11-28 04:03:36,952 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 393 transitions. Word has length 74 [2024-11-28 04:03:36,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:03:36,952 INFO L471 AbstractCegarLoop]: Abstraction has 296 states and 393 transitions. [2024-11-28 04:03:36,952 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-28 04:03:36,952 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 393 transitions. [2024-11-28 04:03:36,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-28 04:03:36,953 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:03:36,954 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:03:36,963 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2024-11-28 04:03:37,154 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:03:37,154 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 04:03:37,155 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:03:37,155 INFO L85 PathProgramCache]: Analyzing trace with hash 1494346892, now seen corresponding path program 1 times [2024-11-28 04:03:37,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:03:37,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979327305] [2024-11-28 04:03:37,155 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:03:37,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:03:37,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:03:37,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2011143323] [2024-11-28 04:03:37,171 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:03:37,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:03:37,171 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:03:37,173 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:03:37,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-28 04:03:37,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:03:37,233 INFO L256 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:03:37,235 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:03:37,302 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-11-28 04:03:37,302 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:03:37,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:03:37,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979327305] [2024-11-28 04:03:37,303 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:03:37,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2011143323] [2024-11-28 04:03:37,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2011143323] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:03:37,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:03:37,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:03:37,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238000770] [2024-11-28 04:03:37,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:03:37,304 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:03:37,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:03:37,304 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:03:37,304 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:03:37,305 INFO L87 Difference]: Start difference. First operand 296 states and 393 transitions. Second operand has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-28 04:03:37,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:03:37,619 INFO L93 Difference]: Finished difference Result 315 states and 404 transitions. [2024-11-28 04:03:37,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:03:37,620 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 75 [2024-11-28 04:03:37,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:03:37,622 INFO L225 Difference]: With dead ends: 315 [2024-11-28 04:03:37,622 INFO L226 Difference]: Without dead ends: 313 [2024-11-28 04:03:37,622 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:03:37,623 INFO L435 NwaCegarLoop]: 140 mSDtfsCounter, 90 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:03:37,623 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 256 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:03:37,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2024-11-28 04:03:37,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 296. [2024-11-28 04:03:37,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 211 states have (on average 1.6255924170616114) internal successors, (343), 270 states have internal predecessors, (343), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-28 04:03:37,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 389 transitions. [2024-11-28 04:03:37,650 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 389 transitions. Word has length 75 [2024-11-28 04:03:37,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:03:37,651 INFO L471 AbstractCegarLoop]: Abstraction has 296 states and 389 transitions. [2024-11-28 04:03:37,651 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-28 04:03:37,651 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 389 transitions. [2024-11-28 04:03:37,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-28 04:03:37,651 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:03:37,652 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:03:37,661 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2024-11-28 04:03:37,856 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-11-28 04:03:37,856 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 04:03:37,856 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:03:37,857 INFO L85 PathProgramCache]: Analyzing trace with hash -919886488, now seen corresponding path program 1 times [2024-11-28 04:03:37,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:03:37,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738924536] [2024-11-28 04:03:37,857 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:03:37,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:03:37,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:03:37,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [615584816] [2024-11-28 04:03:37,876 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:03:37,876 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:03:37,876 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:03:37,878 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:03:37,883 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-28 04:03:37,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:03:37,938 INFO L256 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:03:37,940 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:03:38,021 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-11-28 04:03:38,021 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:03:38,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:03:38,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738924536] [2024-11-28 04:03:38,021 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:03:38,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [615584816] [2024-11-28 04:03:38,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [615584816] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:03:38,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:03:38,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:03:38,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924603216] [2024-11-28 04:03:38,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:03:38,022 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:03:38,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:03:38,022 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:03:38,022 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:03:38,023 INFO L87 Difference]: Start difference. First operand 296 states and 389 transitions. Second operand has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-28 04:03:39,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:03:39,001 INFO L93 Difference]: Finished difference Result 315 states and 400 transitions. [2024-11-28 04:03:39,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:03:39,001 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 76 [2024-11-28 04:03:39,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:03:39,003 INFO L225 Difference]: With dead ends: 315 [2024-11-28 04:03:39,003 INFO L226 Difference]: Without dead ends: 313 [2024-11-28 04:03:39,003 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:03:39,005 INFO L435 NwaCegarLoop]: 143 mSDtfsCounter, 54 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:03:39,005 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 323 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 04:03:39,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2024-11-28 04:03:39,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 296. [2024-11-28 04:03:39,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 211 states have (on average 1.6066350710900474) internal successors, (339), 270 states have internal predecessors, (339), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-28 04:03:39,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 385 transitions. [2024-11-28 04:03:39,024 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 385 transitions. Word has length 76 [2024-11-28 04:03:39,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:03:39,025 INFO L471 AbstractCegarLoop]: Abstraction has 296 states and 385 transitions. [2024-11-28 04:03:39,025 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-28 04:03:39,025 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 385 transitions. [2024-11-28 04:03:39,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-28 04:03:39,026 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:03:39,026 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:03:39,035 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2024-11-28 04:03:39,226 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-11-28 04:03:39,227 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 04:03:39,227 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:03:39,227 INFO L85 PathProgramCache]: Analyzing trace with hash -2122139886, now seen corresponding path program 1 times [2024-11-28 04:03:39,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:03:39,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038753135] [2024-11-28 04:03:39,227 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:03:39,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:03:39,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:03:39,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2140157023] [2024-11-28 04:03:39,246 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:03:39,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:03:39,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:03:39,248 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:03:39,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-28 04:03:39,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:03:39,311 INFO L256 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 04:03:39,313 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:03:39,503 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2024-11-28 04:03:39,503 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:03:39,759 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2024-11-28 04:03:39,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:03:39,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038753135] [2024-11-28 04:03:39,759 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:03:39,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2140157023] [2024-11-28 04:03:39,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2140157023] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:03:39,760 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:03:39,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-11-28 04:03:39,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637522026] [2024-11-28 04:03:39,760 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:03:39,760 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 04:03:39,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:03:39,761 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 04:03:39,761 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:03:39,761 INFO L87 Difference]: Start difference. First operand 296 states and 385 transitions. Second operand has 9 states, 8 states have (on average 10.0) internal successors, (80), 7 states have internal predecessors, (80), 3 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (15), 5 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-28 04:03:40,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:03:40,576 INFO L93 Difference]: Finished difference Result 314 states and 386 transitions. [2024-11-28 04:03:40,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 04:03:40,577 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.0) internal successors, (80), 7 states have internal predecessors, (80), 3 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (15), 5 states have call predecessors, (15), 3 states have call successors, (15) Word has length 81 [2024-11-28 04:03:40,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:03:40,578 INFO L225 Difference]: With dead ends: 314 [2024-11-28 04:03:40,578 INFO L226 Difference]: Without dead ends: 313 [2024-11-28 04:03:40,579 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 152 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:03:40,579 INFO L435 NwaCegarLoop]: 95 mSDtfsCounter, 295 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 358 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 301 SdHoareTripleChecker+Valid, 353 SdHoareTripleChecker+Invalid, 369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:03:40,579 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [301 Valid, 353 Invalid, 369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 358 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 04:03:40,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2024-11-28 04:03:40,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 296. [2024-11-28 04:03:40,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 211 states have (on average 1.5924170616113744) internal successors, (336), 270 states have internal predecessors, (336), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-28 04:03:40,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 382 transitions. [2024-11-28 04:03:40,598 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 382 transitions. Word has length 81 [2024-11-28 04:03:40,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:03:40,599 INFO L471 AbstractCegarLoop]: Abstraction has 296 states and 382 transitions. [2024-11-28 04:03:40,599 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.0) internal successors, (80), 7 states have internal predecessors, (80), 3 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (15), 5 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-28 04:03:40,599 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 382 transitions. [2024-11-28 04:03:40,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-28 04:03:40,600 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:03:40,600 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:03:40,609 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2024-11-28 04:03:40,800 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-11-28 04:03:40,800 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 04:03:40,801 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:03:40,801 INFO L85 PathProgramCache]: Analyzing trace with hash -1361826898, now seen corresponding path program 1 times [2024-11-28 04:03:40,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:03:40,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330610720] [2024-11-28 04:03:40,801 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:03:40,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:03:40,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:03:40,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [887272044] [2024-11-28 04:03:40,820 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:03:40,821 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:03:40,821 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:03:40,823 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:03:40,826 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-11-28 04:03:40,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:03:40,883 INFO L256 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-28 04:03:40,884 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:03:41,182 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 9 proven. 15 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-28 04:03:41,182 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:03:41,772 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 9 proven. 15 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-28 04:03:41,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:03:41,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330610720] [2024-11-28 04:03:41,773 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:03:41,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [887272044] [2024-11-28 04:03:41,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [887272044] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:03:41,773 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:03:41,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2024-11-28 04:03:41,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893679217] [2024-11-28 04:03:41,773 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:03:41,773 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 04:03:41,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:03:41,774 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 04:03:41,774 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:03:41,774 INFO L87 Difference]: Start difference. First operand 296 states and 382 transitions. Second operand has 11 states, 8 states have (on average 10.25) internal successors, (82), 7 states have internal predecessors, (82), 5 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (17), 7 states have call predecessors, (17), 5 states have call successors, (17) [2024-11-28 04:03:42,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:03:42,959 INFO L93 Difference]: Finished difference Result 314 states and 383 transitions. [2024-11-28 04:03:42,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:03:42,960 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 8 states have (on average 10.25) internal successors, (82), 7 states have internal predecessors, (82), 5 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (17), 7 states have call predecessors, (17), 5 states have call successors, (17) Word has length 82 [2024-11-28 04:03:42,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:03:42,961 INFO L225 Difference]: With dead ends: 314 [2024-11-28 04:03:42,962 INFO L226 Difference]: Without dead ends: 313 [2024-11-28 04:03:42,962 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 152 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2024-11-28 04:03:42,962 INFO L435 NwaCegarLoop]: 95 mSDtfsCounter, 308 mSDsluCounter, 397 mSDsCounter, 0 mSdLazyCounter, 547 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 313 SdHoareTripleChecker+Valid, 492 SdHoareTripleChecker+Invalid, 560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 547 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:03:42,963 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [313 Valid, 492 Invalid, 560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 547 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-28 04:03:42,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2024-11-28 04:03:42,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 296. [2024-11-28 04:03:42,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 211 states have (on average 1.5781990521327014) internal successors, (333), 270 states have internal predecessors, (333), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-28 04:03:42,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 379 transitions. [2024-11-28 04:03:42,987 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 379 transitions. Word has length 82 [2024-11-28 04:03:42,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:03:42,988 INFO L471 AbstractCegarLoop]: Abstraction has 296 states and 379 transitions. [2024-11-28 04:03:42,988 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 8 states have (on average 10.25) internal successors, (82), 7 states have internal predecessors, (82), 5 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (17), 7 states have call predecessors, (17), 5 states have call successors, (17) [2024-11-28 04:03:42,988 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 379 transitions. [2024-11-28 04:03:42,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-28 04:03:42,989 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:03:42,989 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:03:42,998 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2024-11-28 04:03:43,189 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-11-28 04:03:43,190 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 04:03:43,190 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:03:43,191 INFO L85 PathProgramCache]: Analyzing trace with hash 733039252, now seen corresponding path program 1 times [2024-11-28 04:03:43,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:03:43,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570842108] [2024-11-28 04:03:43,191 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:03:43,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:03:43,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:03:43,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [199547357] [2024-11-28 04:03:43,216 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:03:43,216 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:03:43,216 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:03:43,218 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:03:43,227 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-11-28 04:03:43,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:03:43,281 INFO L256 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-28 04:03:43,283 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:03:43,696 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2024-11-28 04:03:43,696 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:03:48,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:03:48,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570842108] [2024-11-28 04:03:48,016 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:03:48,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [199547357] [2024-11-28 04:03:48,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [199547357] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:03:48,016 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:03:48,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-28 04:03:48,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232069241] [2024-11-28 04:03:48,016 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:03:48,016 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:03:48,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:03:48,017 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:03:48,017 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=63, Unknown=1, NotChecked=0, Total=90 [2024-11-28 04:03:48,017 INFO L87 Difference]: Start difference. First operand 296 states and 379 transitions. Second operand has 8 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 2 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-28 04:03:48,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:03:48,854 INFO L93 Difference]: Finished difference Result 314 states and 390 transitions. [2024-11-28 04:03:48,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 04:03:48,855 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 2 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) Word has length 83 [2024-11-28 04:03:48,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:03:48,856 INFO L225 Difference]: With dead ends: 314 [2024-11-28 04:03:48,857 INFO L226 Difference]: Without dead ends: 311 [2024-11-28 04:03:48,857 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=26, Invalid=63, Unknown=1, NotChecked=0, Total=90 [2024-11-28 04:03:48,858 INFO L435 NwaCegarLoop]: 76 mSDtfsCounter, 164 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 641 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 313 SdHoareTripleChecker+Invalid, 643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 641 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:03:48,858 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 313 Invalid, 643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 641 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 04:03:48,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2024-11-28 04:03:48,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 296. [2024-11-28 04:03:48,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 211 states have (on average 1.5497630331753554) internal successors, (327), 270 states have internal predecessors, (327), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-28 04:03:48,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 373 transitions. [2024-11-28 04:03:48,877 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 373 transitions. Word has length 83 [2024-11-28 04:03:48,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:03:48,878 INFO L471 AbstractCegarLoop]: Abstraction has 296 states and 373 transitions. [2024-11-28 04:03:48,878 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 2 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-28 04:03:48,878 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 373 transitions. [2024-11-28 04:03:48,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-28 04:03:48,879 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:03:48,879 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:03:48,888 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2024-11-28 04:03:49,083 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-11-28 04:03:49,083 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 04:03:49,084 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:03:49,084 INFO L85 PathProgramCache]: Analyzing trace with hash 1249380464, now seen corresponding path program 1 times [2024-11-28 04:03:49,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:03:49,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342014584] [2024-11-28 04:03:49,084 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:03:49,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:03:49,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:03:49,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1218101658] [2024-11-28 04:03:49,099 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:03:49,100 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:03:49,100 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:03:49,102 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:03:49,106 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-11-28 04:03:49,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:03:49,170 INFO L256 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-28 04:03:49,172 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:03:49,822 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 9 proven. 15 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-28 04:03:49,822 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:03:50,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:03:50,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342014584] [2024-11-28 04:03:50,002 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:03:50,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1218101658] [2024-11-28 04:03:50,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1218101658] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:03:50,002 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:03:50,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-28 04:03:50,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072416280] [2024-11-28 04:03:50,003 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:03:50,003 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:03:50,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:03:50,004 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:03:50,004 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:03:50,005 INFO L87 Difference]: Start difference. First operand 296 states and 373 transitions. Second operand has 8 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 3 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-28 04:03:50,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:03:50,607 INFO L93 Difference]: Finished difference Result 304 states and 376 transitions. [2024-11-28 04:03:50,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:03:50,608 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 3 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) Word has length 84 [2024-11-28 04:03:50,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:03:50,609 INFO L225 Difference]: With dead ends: 304 [2024-11-28 04:03:50,609 INFO L226 Difference]: Without dead ends: 301 [2024-11-28 04:03:50,610 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:03:50,610 INFO L435 NwaCegarLoop]: 69 mSDtfsCounter, 241 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 451 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:03:50,610 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [247 Valid, 238 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 451 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 04:03:50,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2024-11-28 04:03:50,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 296. [2024-11-28 04:03:50,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 211 states have (on average 1.5213270142180095) internal successors, (321), 270 states have internal predecessors, (321), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-28 04:03:50,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 367 transitions. [2024-11-28 04:03:50,629 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 367 transitions. Word has length 84 [2024-11-28 04:03:50,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:03:50,630 INFO L471 AbstractCegarLoop]: Abstraction has 296 states and 367 transitions. [2024-11-28 04:03:50,630 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 3 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-28 04:03:50,630 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 367 transitions. [2024-11-28 04:03:50,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-28 04:03:50,631 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:03:50,631 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:03:50,641 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2024-11-28 04:03:50,832 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-28 04:03:50,832 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 04:03:50,832 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:03:50,832 INFO L85 PathProgramCache]: Analyzing trace with hash -601143357, now seen corresponding path program 1 times [2024-11-28 04:03:50,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:03:50,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128148003] [2024-11-28 04:03:50,832 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:03:50,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:03:50,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:03:50,909 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-28 04:03:50,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:03:50,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128148003] [2024-11-28 04:03:50,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128148003] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:03:50,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:03:50,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:03:50,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913015763] [2024-11-28 04:03:50,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:03:50,913 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:03:50,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:03:50,914 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:03:50,914 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:03:50,914 INFO L87 Difference]: Start difference. First operand 296 states and 367 transitions. Second operand has 3 states, 2 states have (on average 26.5) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-28 04:03:51,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:03:51,034 INFO L93 Difference]: Finished difference Result 296 states and 367 transitions. [2024-11-28 04:03:51,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:03:51,035 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 26.5) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 97 [2024-11-28 04:03:51,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:03:51,036 INFO L225 Difference]: With dead ends: 296 [2024-11-28 04:03:51,036 INFO L226 Difference]: Without dead ends: 295 [2024-11-28 04:03:51,036 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:03:51,037 INFO L435 NwaCegarLoop]: 156 mSDtfsCounter, 1 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:03:51,037 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 281 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:03:51,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2024-11-28 04:03:51,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 295. [2024-11-28 04:03:51,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 211 states have (on average 1.5023696682464456) internal successors, (317), 269 states have internal predecessors, (317), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-28 04:03:51,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 363 transitions. [2024-11-28 04:03:51,057 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 363 transitions. Word has length 97 [2024-11-28 04:03:51,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:03:51,057 INFO L471 AbstractCegarLoop]: Abstraction has 295 states and 363 transitions. [2024-11-28 04:03:51,057 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 26.5) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-28 04:03:51,058 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 363 transitions. [2024-11-28 04:03:51,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-28 04:03:51,058 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:03:51,058 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:03:51,059 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-28 04:03:51,059 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 04:03:51,059 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:03:51,060 INFO L85 PathProgramCache]: Analyzing trace with hash -1455574729, now seen corresponding path program 1 times [2024-11-28 04:03:51,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:03:51,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881118904] [2024-11-28 04:03:51,060 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:03:51,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:03:51,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:03:51,204 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-28 04:03:51,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:03:51,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881118904] [2024-11-28 04:03:51,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [881118904] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:03:51,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:03:51,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:03:51,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859689948] [2024-11-28 04:03:51,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:03:51,205 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:03:51,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:03:51,206 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:03:51,206 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:03:51,206 INFO L87 Difference]: Start difference. First operand 295 states and 363 transitions. Second operand has 6 states, 5 states have (on average 10.8) internal successors, (54), 6 states have internal predecessors, (54), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-28 04:03:51,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:03:51,956 INFO L93 Difference]: Finished difference Result 299 states and 364 transitions. [2024-11-28 04:03:51,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:03:51,957 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.8) internal successors, (54), 6 states have internal predecessors, (54), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 98 [2024-11-28 04:03:51,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:03:51,958 INFO L225 Difference]: With dead ends: 299 [2024-11-28 04:03:51,958 INFO L226 Difference]: Without dead ends: 298 [2024-11-28 04:03:51,958 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:03:51,959 INFO L435 NwaCegarLoop]: 65 mSDtfsCounter, 451 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 451 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:03:51,959 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [451 Valid, 218 Invalid, 399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 359 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 04:03:51,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2024-11-28 04:03:51,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 295. [2024-11-28 04:03:51,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 211 states have (on average 1.4976303317535544) internal successors, (316), 269 states have internal predecessors, (316), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-28 04:03:51,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 362 transitions. [2024-11-28 04:03:51,989 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 362 transitions. Word has length 98 [2024-11-28 04:03:51,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:03:51,990 INFO L471 AbstractCegarLoop]: Abstraction has 295 states and 362 transitions. [2024-11-28 04:03:51,990 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.8) internal successors, (54), 6 states have internal predecessors, (54), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-28 04:03:51,990 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 362 transitions. [2024-11-28 04:03:51,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-28 04:03:51,991 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:03:51,991 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:03:51,991 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-28 04:03:51,991 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr46ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 04:03:51,992 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:03:51,992 INFO L85 PathProgramCache]: Analyzing trace with hash 1350489719, now seen corresponding path program 1 times [2024-11-28 04:03:51,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:03:51,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661038505] [2024-11-28 04:03:51,992 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:03:51,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:03:52,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:03:52,170 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-28 04:03:52,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:03:52,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661038505] [2024-11-28 04:03:52,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661038505] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:03:52,170 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:03:52,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:03:52,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155848936] [2024-11-28 04:03:52,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:03:52,171 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:03:52,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:03:52,171 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:03:52,171 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:03:52,172 INFO L87 Difference]: Start difference. First operand 295 states and 362 transitions. Second operand has 5 states, 4 states have (on average 14.0) internal successors, (56), 5 states have internal predecessors, (56), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-28 04:03:52,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:03:52,251 INFO L93 Difference]: Finished difference Result 310 states and 373 transitions. [2024-11-28 04:03:52,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:03:52,251 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 14.0) internal successors, (56), 5 states have internal predecessors, (56), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 100 [2024-11-28 04:03:52,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:03:52,252 INFO L225 Difference]: With dead ends: 310 [2024-11-28 04:03:52,253 INFO L226 Difference]: Without dead ends: 309 [2024-11-28 04:03:52,253 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:03:52,253 INFO L435 NwaCegarLoop]: 151 mSDtfsCounter, 14 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 428 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:03:52,254 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 428 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:03:52,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2024-11-28 04:03:52,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 300. [2024-11-28 04:03:52,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 216 states have (on average 1.4861111111111112) internal successors, (321), 274 states have internal predecessors, (321), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-28 04:03:52,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 367 transitions. [2024-11-28 04:03:52,271 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 367 transitions. Word has length 100 [2024-11-28 04:03:52,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:03:52,272 INFO L471 AbstractCegarLoop]: Abstraction has 300 states and 367 transitions. [2024-11-28 04:03:52,272 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 14.0) internal successors, (56), 5 states have internal predecessors, (56), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-28 04:03:52,272 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 367 transitions. [2024-11-28 04:03:52,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-28 04:03:52,273 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:03:52,273 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:03:52,273 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-28 04:03:52,273 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr47ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 04:03:52,274 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:03:52,274 INFO L85 PathProgramCache]: Analyzing trace with hash -1084491501, now seen corresponding path program 1 times [2024-11-28 04:03:52,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:03:52,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883964472] [2024-11-28 04:03:52,274 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:03:52,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:03:52,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:03:52,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [654968823] [2024-11-28 04:03:52,295 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:03:52,295 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:03:52,295 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:03:52,297 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:03:52,300 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-11-28 04:03:52,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:03:52,360 INFO L256 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 04:03:52,362 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:03:52,550 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-28 04:03:52,550 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:03:52,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:03:52,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883964472] [2024-11-28 04:03:52,550 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:03:52,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [654968823] [2024-11-28 04:03:52,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [654968823] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:03:52,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:03:52,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:03:52,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467524231] [2024-11-28 04:03:52,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:03:52,551 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:03:52,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:03:52,552 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:03:52,552 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:03:52,552 INFO L87 Difference]: Start difference. First operand 300 states and 367 transitions. Second operand has 4 states, 3 states have (on average 19.0) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-28 04:03:52,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:03:52,878 INFO L93 Difference]: Finished difference Result 310 states and 371 transitions. [2024-11-28 04:03:52,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:03:52,879 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 19.0) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 101 [2024-11-28 04:03:52,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:03:52,880 INFO L225 Difference]: With dead ends: 310 [2024-11-28 04:03:52,880 INFO L226 Difference]: Without dead ends: 309 [2024-11-28 04:03:52,880 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:03:52,881 INFO L435 NwaCegarLoop]: 133 mSDtfsCounter, 15 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 307 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:03:52,881 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 307 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:03:52,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2024-11-28 04:03:52,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 302. [2024-11-28 04:03:52,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 218 states have (on average 1.481651376146789) internal successors, (323), 276 states have internal predecessors, (323), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-28 04:03:52,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 369 transitions. [2024-11-28 04:03:52,913 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 369 transitions. Word has length 101 [2024-11-28 04:03:52,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:03:52,914 INFO L471 AbstractCegarLoop]: Abstraction has 302 states and 369 transitions. [2024-11-28 04:03:52,914 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 19.0) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-28 04:03:52,914 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 369 transitions. [2024-11-28 04:03:52,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-28 04:03:52,915 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:03:52,915 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:03:52,924 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2024-11-28 04:03:53,115 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:03:53,116 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 04:03:53,116 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:03:53,116 INFO L85 PathProgramCache]: Analyzing trace with hash -1036776338, now seen corresponding path program 1 times [2024-11-28 04:03:53,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:03:53,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946285362] [2024-11-28 04:03:53,116 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:03:53,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:03:53,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:03:53,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [12405235] [2024-11-28 04:03:53,135 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:03:53,136 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:03:53,136 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:03:53,139 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:03:53,143 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-11-28 04:03:53,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:03:53,216 INFO L256 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-28 04:03:53,218 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:03:53,429 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2024-11-28 04:03:53,429 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:03:53,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:03:53,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946285362] [2024-11-28 04:03:53,507 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:03:53,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [12405235] [2024-11-28 04:03:53,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [12405235] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:03:53,508 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:03:53,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-28 04:03:53,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122762296] [2024-11-28 04:03:53,508 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:03:53,508 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:03:53,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:03:53,509 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:03:53,509 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:03:53,509 INFO L87 Difference]: Start difference. First operand 302 states and 369 transitions. Second operand has 8 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 3 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-28 04:03:54,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:03:54,137 INFO L93 Difference]: Finished difference Result 305 states and 369 transitions. [2024-11-28 04:03:54,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 04:03:54,138 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 3 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) Word has length 101 [2024-11-28 04:03:54,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:03:54,139 INFO L225 Difference]: With dead ends: 305 [2024-11-28 04:03:54,139 INFO L226 Difference]: Without dead ends: 303 [2024-11-28 04:03:54,140 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2024-11-28 04:03:54,140 INFO L435 NwaCegarLoop]: 102 mSDtfsCounter, 193 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 580 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 472 SdHoareTripleChecker+Invalid, 591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 580 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:03:54,140 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 472 Invalid, 591 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 580 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 04:03:54,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2024-11-28 04:03:54,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 302. [2024-11-28 04:03:54,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 218 states have (on average 1.4724770642201834) internal successors, (321), 276 states have internal predecessors, (321), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-28 04:03:54,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 367 transitions. [2024-11-28 04:03:54,170 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 367 transitions. Word has length 101 [2024-11-28 04:03:54,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:03:54,170 INFO L471 AbstractCegarLoop]: Abstraction has 302 states and 367 transitions. [2024-11-28 04:03:54,171 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 3 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-28 04:03:54,171 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 367 transitions. [2024-11-28 04:03:54,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-28 04:03:54,174 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:03:54,174 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:03:54,183 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2024-11-28 04:03:54,375 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2024-11-28 04:03:54,375 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 04:03:54,375 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:03:54,375 INFO L85 PathProgramCache]: Analyzing trace with hash -2075295333, now seen corresponding path program 1 times [2024-11-28 04:03:54,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:03:54,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521285504] [2024-11-28 04:03:54,376 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:03:54,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:03:54,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:03:54,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [940454329] [2024-11-28 04:03:54,395 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:03:54,395 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:03:54,395 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:03:54,399 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:03:54,401 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-11-28 04:03:54,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:03:54,470 INFO L256 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-28 04:03:54,474 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:03:54,832 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 9 proven. 17 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-28 04:03:54,832 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:03:55,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:03:55,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521285504] [2024-11-28 04:03:55,002 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:03:55,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [940454329] [2024-11-28 04:03:55,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [940454329] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:03:55,002 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:03:55,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-28 04:03:55,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169114303] [2024-11-28 04:03:55,003 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:03:55,003 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 04:03:55,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:03:55,003 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 04:03:55,003 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:03:55,004 INFO L87 Difference]: Start difference. First operand 302 states and 367 transitions. Second operand has 9 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 5 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-28 04:03:55,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:03:55,525 INFO L93 Difference]: Finished difference Result 351 states and 423 transitions. [2024-11-28 04:03:55,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:03:55,525 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 5 states have call predecessors, (10), 4 states have call successors, (10) Word has length 102 [2024-11-28 04:03:55,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:03:55,526 INFO L225 Difference]: With dead ends: 351 [2024-11-28 04:03:55,527 INFO L226 Difference]: Without dead ends: 349 [2024-11-28 04:03:55,527 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:03:55,527 INFO L435 NwaCegarLoop]: 82 mSDtfsCounter, 445 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 450 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:03:55,527 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [450 Valid, 355 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 428 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 04:03:55,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2024-11-28 04:03:55,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 347. [2024-11-28 04:03:55,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 347 states, 259 states have (on average 1.4131274131274132) internal successors, (366), 317 states have internal predecessors, (366), 27 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-28 04:03:55,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 420 transitions. [2024-11-28 04:03:55,554 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 420 transitions. Word has length 102 [2024-11-28 04:03:55,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:03:55,555 INFO L471 AbstractCegarLoop]: Abstraction has 347 states and 420 transitions. [2024-11-28 04:03:55,555 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 5 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-28 04:03:55,555 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 420 transitions. [2024-11-28 04:03:55,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-28 04:03:55,556 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:03:55,556 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:03:55,566 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2024-11-28 04:03:55,756 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:03:55,757 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 04:03:55,757 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:03:55,757 INFO L85 PathProgramCache]: Analyzing trace with hash 90354192, now seen corresponding path program 1 times [2024-11-28 04:03:55,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:03:55,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970167313] [2024-11-28 04:03:55,757 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:03:55,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:03:55,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:03:55,841 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-28 04:03:55,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:03:55,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970167313] [2024-11-28 04:03:55,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970167313] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:03:55,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:03:55,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:03:55,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170192651] [2024-11-28 04:03:55,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:03:55,842 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:03:55,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:03:55,843 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:03:55,843 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:03:55,843 INFO L87 Difference]: Start difference. First operand 347 states and 420 transitions. Second operand has 5 states, 4 states have (on average 14.75) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-28 04:03:56,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:03:56,236 INFO L93 Difference]: Finished difference Result 378 states and 420 transitions. [2024-11-28 04:03:56,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:03:56,237 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 14.75) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 103 [2024-11-28 04:03:56,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:03:56,238 INFO L225 Difference]: With dead ends: 378 [2024-11-28 04:03:56,238 INFO L226 Difference]: Without dead ends: 377 [2024-11-28 04:03:56,239 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:03:56,239 INFO L435 NwaCegarLoop]: 191 mSDtfsCounter, 133 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 546 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:03:56,239 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 546 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:03:56,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2024-11-28 04:03:56,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 347. [2024-11-28 04:03:56,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 347 states, 259 states have (on average 1.4015444015444016) internal successors, (363), 317 states have internal predecessors, (363), 27 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-28 04:03:56,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 417 transitions. [2024-11-28 04:03:56,265 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 417 transitions. Word has length 103 [2024-11-28 04:03:56,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:03:56,265 INFO L471 AbstractCegarLoop]: Abstraction has 347 states and 417 transitions. [2024-11-28 04:03:56,266 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 14.75) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-28 04:03:56,266 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 417 transitions. [2024-11-28 04:03:56,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-28 04:03:56,267 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:03:56,267 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:03:56,267 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-28 04:03:56,267 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 04:03:56,267 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:03:56,268 INFO L85 PathProgramCache]: Analyzing trace with hash -1342134917, now seen corresponding path program 1 times [2024-11-28 04:03:56,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:03:56,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619360671] [2024-11-28 04:03:56,268 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:03:56,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:03:56,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:03:56,388 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-28 04:03:56,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:03:56,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619360671] [2024-11-28 04:03:56,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619360671] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:03:56,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:03:56,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:03:56,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472655501] [2024-11-28 04:03:56,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:03:56,389 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:03:56,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:03:56,389 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:03:56,389 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:03:56,390 INFO L87 Difference]: Start difference. First operand 347 states and 417 transitions. Second operand has 5 states, 4 states have (on average 15.0) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-28 04:03:56,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:03:56,516 INFO L93 Difference]: Finished difference Result 360 states and 427 transitions. [2024-11-28 04:03:56,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:03:56,517 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.0) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 104 [2024-11-28 04:03:56,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:03:56,518 INFO L225 Difference]: With dead ends: 360 [2024-11-28 04:03:56,518 INFO L226 Difference]: Without dead ends: 359 [2024-11-28 04:03:56,518 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:03:56,519 INFO L435 NwaCegarLoop]: 154 mSDtfsCounter, 13 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 434 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:03:56,519 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 434 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:03:56,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2024-11-28 04:03:56,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 352. [2024-11-28 04:03:56,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 352 states, 264 states have (on average 1.4015151515151516) internal successors, (370), 322 states have internal predecessors, (370), 27 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-28 04:03:56,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 424 transitions. [2024-11-28 04:03:56,544 INFO L78 Accepts]: Start accepts. Automaton has 352 states and 424 transitions. Word has length 104 [2024-11-28 04:03:56,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:03:56,545 INFO L471 AbstractCegarLoop]: Abstraction has 352 states and 424 transitions. [2024-11-28 04:03:56,545 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.0) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-28 04:03:56,545 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 424 transitions. [2024-11-28 04:03:56,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-28 04:03:56,546 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:03:56,546 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:03:56,547 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-28 04:03:56,547 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 04:03:56,547 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:03:56,547 INFO L85 PathProgramCache]: Analyzing trace with hash -1493987267, now seen corresponding path program 1 times [2024-11-28 04:03:56,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:03:56,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403864728] [2024-11-28 04:03:56,547 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:03:56,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:03:56,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:03:56,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1094682521] [2024-11-28 04:03:56,563 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:03:56,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:03:56,563 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:03:56,565 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:03:56,568 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2024-11-28 04:03:56,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:03:56,637 INFO L256 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-28 04:03:56,640 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:03:57,060 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2024-11-28 04:03:57,060 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:03:57,344 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2024-11-28 04:03:57,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:03:57,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403864728] [2024-11-28 04:03:57,344 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:03:57,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1094682521] [2024-11-28 04:03:57,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1094682521] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:03:57,344 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:03:57,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 13 [2024-11-28 04:03:57,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551933788] [2024-11-28 04:03:57,345 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:03:57,345 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 04:03:57,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:03:57,348 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 04:03:57,348 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:03:57,349 INFO L87 Difference]: Start difference. First operand 352 states and 424 transitions. Second operand has 14 states, 13 states have (on average 8.76923076923077) internal successors, (114), 14 states have internal predecessors, (114), 7 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (20), 6 states have call predecessors, (20), 7 states have call successors, (20) [2024-11-28 04:03:58,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:03:58,586 INFO L93 Difference]: Finished difference Result 357 states and 425 transitions. [2024-11-28 04:03:58,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-28 04:03:58,586 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 8.76923076923077) internal successors, (114), 14 states have internal predecessors, (114), 7 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (20), 6 states have call predecessors, (20), 7 states have call successors, (20) Word has length 104 [2024-11-28 04:03:58,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:03:58,588 INFO L225 Difference]: With dead ends: 357 [2024-11-28 04:03:58,588 INFO L226 Difference]: Without dead ends: 356 [2024-11-28 04:03:58,588 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 193 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=148, Invalid=452, Unknown=0, NotChecked=0, Total=600 [2024-11-28 04:03:58,589 INFO L435 NwaCegarLoop]: 99 mSDtfsCounter, 374 mSDsluCounter, 484 mSDsCounter, 0 mSdLazyCounter, 825 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 583 SdHoareTripleChecker+Invalid, 859 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 825 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:03:58,589 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [375 Valid, 583 Invalid, 859 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 825 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 04:03:58,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2024-11-28 04:03:58,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 352. [2024-11-28 04:03:58,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 352 states, 264 states have (on average 1.3901515151515151) internal successors, (367), 322 states have internal predecessors, (367), 27 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-28 04:03:58,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 421 transitions. [2024-11-28 04:03:58,618 INFO L78 Accepts]: Start accepts. Automaton has 352 states and 421 transitions. Word has length 104 [2024-11-28 04:03:58,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:03:58,618 INFO L471 AbstractCegarLoop]: Abstraction has 352 states and 421 transitions. [2024-11-28 04:03:58,618 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 8.76923076923077) internal successors, (114), 14 states have internal predecessors, (114), 7 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (20), 6 states have call predecessors, (20), 7 states have call successors, (20) [2024-11-28 04:03:58,619 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 421 transitions. [2024-11-28 04:03:58,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-28 04:03:58,619 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:03:58,620 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:03:58,630 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2024-11-28 04:03:58,824 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:03:58,824 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 04:03:58,825 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:03:58,825 INFO L85 PathProgramCache]: Analyzing trace with hash 1343490711, now seen corresponding path program 1 times [2024-11-28 04:03:58,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:03:58,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461160242] [2024-11-28 04:03:58,825 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:03:58,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:03:58,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:03:58,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [641461817] [2024-11-28 04:03:58,851 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:03:58,851 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:03:58,851 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:03:58,853 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:03:58,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-11-28 04:03:58,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:03:58,926 INFO L256 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 04:03:58,927 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:03:59,126 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-28 04:03:59,126 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:03:59,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:03:59,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461160242] [2024-11-28 04:03:59,127 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:03:59,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [641461817] [2024-11-28 04:03:59,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [641461817] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:03:59,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:03:59,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:03:59,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342763403] [2024-11-28 04:03:59,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:03:59,128 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:03:59,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:03:59,128 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:03:59,128 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:03:59,129 INFO L87 Difference]: Start difference. First operand 352 states and 421 transitions. Second operand has 5 states, 4 states have (on average 15.25) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-28 04:03:59,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:03:59,371 INFO L93 Difference]: Finished difference Result 358 states and 424 transitions. [2024-11-28 04:03:59,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:03:59,371 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.25) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 105 [2024-11-28 04:03:59,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:03:59,372 INFO L225 Difference]: With dead ends: 358 [2024-11-28 04:03:59,372 INFO L226 Difference]: Without dead ends: 357 [2024-11-28 04:03:59,372 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:03:59,373 INFO L435 NwaCegarLoop]: 142 mSDtfsCounter, 54 mSDsluCounter, 361 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 503 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:03:59,373 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 503 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:03:59,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2024-11-28 04:03:59,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 354. [2024-11-28 04:03:59,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 354 states, 266 states have (on average 1.387218045112782) internal successors, (369), 324 states have internal predecessors, (369), 27 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-28 04:03:59,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 423 transitions. [2024-11-28 04:03:59,401 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 423 transitions. Word has length 105 [2024-11-28 04:03:59,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:03:59,402 INFO L471 AbstractCegarLoop]: Abstraction has 354 states and 423 transitions. [2024-11-28 04:03:59,402 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.25) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-28 04:03:59,402 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 423 transitions. [2024-11-28 04:03:59,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-28 04:03:59,403 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:03:59,403 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:03:59,413 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2024-11-28 04:03:59,607 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:03:59,607 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr52ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 04:03:59,608 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:03:59,608 INFO L85 PathProgramCache]: Analyzing trace with hash -1690580813, now seen corresponding path program 1 times [2024-11-28 04:03:59,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:03:59,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494801337] [2024-11-28 04:03:59,608 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:03:59,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:03:59,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:03:59,802 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2024-11-28 04:03:59,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:03:59,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494801337] [2024-11-28 04:03:59,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [494801337] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:03:59,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2109882642] [2024-11-28 04:03:59,803 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:03:59,803 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:03:59,803 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:03:59,805 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:03:59,808 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2024-11-28 04:03:59,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:03:59,875 INFO L256 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-28 04:03:59,877 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:04:00,332 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2024-11-28 04:04:00,333 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:04:00,733 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2024-11-28 04:04:00,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2109882642] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:04:00,733 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:04:00,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 18 [2024-11-28 04:04:00,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201264225] [2024-11-28 04:04:00,734 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:04:00,734 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-28 04:04:00,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:04:00,735 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-28 04:04:00,735 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2024-11-28 04:04:00,736 INFO L87 Difference]: Start difference. First operand 354 states and 423 transitions. Second operand has 18 states, 18 states have (on average 9.833333333333334) internal successors, (177), 17 states have internal predecessors, (177), 10 states have call successors, (28), 1 states have call predecessors, (28), 2 states have return successors, (30), 10 states have call predecessors, (30), 10 states have call successors, (30) [2024-11-28 04:04:01,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:04:01,977 INFO L93 Difference]: Finished difference Result 740 states and 851 transitions. [2024-11-28 04:04:01,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 04:04:01,978 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 9.833333333333334) internal successors, (177), 17 states have internal predecessors, (177), 10 states have call successors, (28), 1 states have call predecessors, (28), 2 states have return successors, (30), 10 states have call predecessors, (30), 10 states have call successors, (30) Word has length 107 [2024-11-28 04:04:01,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:04:01,981 INFO L225 Difference]: With dead ends: 740 [2024-11-28 04:04:01,981 INFO L226 Difference]: Without dead ends: 711 [2024-11-28 04:04:01,982 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 203 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=141, Invalid=509, Unknown=0, NotChecked=0, Total=650 [2024-11-28 04:04:01,982 INFO L435 NwaCegarLoop]: 121 mSDtfsCounter, 1155 mSDsluCounter, 725 mSDsCounter, 0 mSdLazyCounter, 870 mSolverCounterSat, 208 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1155 SdHoareTripleChecker+Valid, 846 SdHoareTripleChecker+Invalid, 1078 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 208 IncrementalHoareTripleChecker+Valid, 870 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:04:01,982 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1155 Valid, 846 Invalid, 1078 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [208 Valid, 870 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 04:04:01,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 711 states. [2024-11-28 04:04:02,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 711 to 505. [2024-11-28 04:04:02,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 505 states, 405 states have (on average 1.5506172839506174) internal successors, (628), 463 states have internal predecessors, (628), 39 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-28 04:04:02,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 706 transitions. [2024-11-28 04:04:02,019 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 706 transitions. Word has length 107 [2024-11-28 04:04:02,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:04:02,019 INFO L471 AbstractCegarLoop]: Abstraction has 505 states and 706 transitions. [2024-11-28 04:04:02,019 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 9.833333333333334) internal successors, (177), 17 states have internal predecessors, (177), 10 states have call successors, (28), 1 states have call predecessors, (28), 2 states have return successors, (30), 10 states have call predecessors, (30), 10 states have call successors, (30) [2024-11-28 04:04:02,019 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 706 transitions. [2024-11-28 04:04:02,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-28 04:04:02,020 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:04:02,020 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:04:02,030 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2024-11-28 04:04:02,224 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36,33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:04:02,225 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 04:04:02,225 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:04:02,225 INFO L85 PathProgramCache]: Analyzing trace with hash -1150569117, now seen corresponding path program 1 times [2024-11-28 04:04:02,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:04:02,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601869220] [2024-11-28 04:04:02,225 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:04:02,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:04:02,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:04:02,513 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2024-11-28 04:04:02,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:04:02,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601869220] [2024-11-28 04:04:02,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601869220] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:04:02,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1570982049] [2024-11-28 04:04:02,514 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:04:02,514 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:04:02,514 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:04:02,516 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:04:02,519 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2024-11-28 04:04:02,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:04:02,590 INFO L256 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-28 04:04:02,592 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:04:02,823 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-28 04:04:02,823 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:04:02,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1570982049] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:04:02,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:04:02,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 17 [2024-11-28 04:04:02,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421012824] [2024-11-28 04:04:02,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:04:02,824 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:04:02,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:04:02,825 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:04:02,825 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2024-11-28 04:04:02,825 INFO L87 Difference]: Start difference. First operand 505 states and 706 transitions. Second operand has 8 states, 7 states have (on average 9.285714285714286) internal successors, (65), 8 states have internal predecessors, (65), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-28 04:04:04,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:04:04,288 INFO L93 Difference]: Finished difference Result 957 states and 1277 transitions. [2024-11-28 04:04:04,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 04:04:04,289 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 9.285714285714286) internal successors, (65), 8 states have internal predecessors, (65), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 109 [2024-11-28 04:04:04,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:04:04,293 INFO L225 Difference]: With dead ends: 957 [2024-11-28 04:04:04,293 INFO L226 Difference]: Without dead ends: 956 [2024-11-28 04:04:04,293 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=152, Invalid=660, Unknown=0, NotChecked=0, Total=812 [2024-11-28 04:04:04,294 INFO L435 NwaCegarLoop]: 178 mSDtfsCounter, 722 mSDsluCounter, 673 mSDsCounter, 0 mSdLazyCounter, 837 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 727 SdHoareTripleChecker+Valid, 851 SdHoareTripleChecker+Invalid, 878 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 837 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:04:04,294 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [727 Valid, 851 Invalid, 878 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 837 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-28 04:04:04,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 956 states. [2024-11-28 04:04:04,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 956 to 698. [2024-11-28 04:04:04,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 698 states, 582 states have (on average 1.6443298969072164) internal successors, (957), 640 states have internal predecessors, (957), 55 states have call successors, (55), 2 states have call predecessors, (55), 2 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2024-11-28 04:04:04,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 698 states to 698 states and 1067 transitions. [2024-11-28 04:04:04,372 INFO L78 Accepts]: Start accepts. Automaton has 698 states and 1067 transitions. Word has length 109 [2024-11-28 04:04:04,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:04:04,373 INFO L471 AbstractCegarLoop]: Abstraction has 698 states and 1067 transitions. [2024-11-28 04:04:04,373 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 9.285714285714286) internal successors, (65), 8 states have internal predecessors, (65), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-28 04:04:04,373 INFO L276 IsEmpty]: Start isEmpty. Operand 698 states and 1067 transitions. [2024-11-28 04:04:04,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-28 04:04:04,374 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:04:04,374 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:04:04,383 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2024-11-28 04:04:04,578 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2024-11-28 04:04:04,579 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 04:04:04,579 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:04:04,579 INFO L85 PathProgramCache]: Analyzing trace with hash -1307904182, now seen corresponding path program 1 times [2024-11-28 04:04:04,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:04:04,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723536518] [2024-11-28 04:04:04,580 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:04:04,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:04:04,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:04:04,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1702063173] [2024-11-28 04:04:04,616 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:04:04,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:04:04,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:04:04,618 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:04:04,621 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2024-11-28 04:04:04,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:04:04,694 INFO L256 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 04:04:04,696 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:04:04,829 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-28 04:04:04,829 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:04:05,021 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-28 04:04:05,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:04:05,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723536518] [2024-11-28 04:04:05,021 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:04:05,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1702063173] [2024-11-28 04:04:05,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1702063173] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:04:05,021 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:04:05,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2024-11-28 04:04:05,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216565790] [2024-11-28 04:04:05,022 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:04:05,022 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 04:04:05,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:04:05,023 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 04:04:05,023 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:04:05,023 INFO L87 Difference]: Start difference. First operand 698 states and 1067 transitions. Second operand has 10 states, 9 states have (on average 13.777777777777779) internal successors, (124), 10 states have internal predecessors, (124), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 5 states have call predecessors, (19), 5 states have call successors, (19) [2024-11-28 04:04:05,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:04:05,924 INFO L93 Difference]: Finished difference Result 1099 states and 1647 transitions. [2024-11-28 04:04:05,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 04:04:05,925 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 13.777777777777779) internal successors, (124), 10 states have internal predecessors, (124), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 5 states have call predecessors, (19), 5 states have call successors, (19) Word has length 110 [2024-11-28 04:04:05,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:04:05,929 INFO L225 Difference]: With dead ends: 1099 [2024-11-28 04:04:05,929 INFO L226 Difference]: Without dead ends: 1098 [2024-11-28 04:04:05,929 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=96, Invalid=210, Unknown=0, NotChecked=0, Total=306 [2024-11-28 04:04:05,930 INFO L435 NwaCegarLoop]: 170 mSDtfsCounter, 758 mSDsluCounter, 488 mSDsCounter, 0 mSdLazyCounter, 675 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 759 SdHoareTripleChecker+Valid, 658 SdHoareTripleChecker+Invalid, 718 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 675 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:04:05,930 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [759 Valid, 658 Invalid, 718 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 675 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 04:04:05,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1098 states. [2024-11-28 04:04:05,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1098 to 851. [2024-11-28 04:04:05,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 851 states, 723 states have (on average 1.6721991701244814) internal successors, (1209), 781 states have internal predecessors, (1209), 67 states have call successors, (67), 2 states have call predecessors, (67), 2 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67) [2024-11-28 04:04:05,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 851 states to 851 states and 1343 transitions. [2024-11-28 04:04:05,991 INFO L78 Accepts]: Start accepts. Automaton has 851 states and 1343 transitions. Word has length 110 [2024-11-28 04:04:05,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:04:05,991 INFO L471 AbstractCegarLoop]: Abstraction has 851 states and 1343 transitions. [2024-11-28 04:04:05,992 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 13.777777777777779) internal successors, (124), 10 states have internal predecessors, (124), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 5 states have call predecessors, (19), 5 states have call successors, (19) [2024-11-28 04:04:05,992 INFO L276 IsEmpty]: Start isEmpty. Operand 851 states and 1343 transitions. [2024-11-28 04:04:05,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-28 04:04:05,993 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:04:05,993 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:04:06,007 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Ended with exit code 0 [2024-11-28 04:04:06,193 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38,35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:04:06,194 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 04:04:06,194 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:04:06,194 INFO L85 PathProgramCache]: Analyzing trace with hash -1658250161, now seen corresponding path program 1 times [2024-11-28 04:04:06,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:04:06,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265247671] [2024-11-28 04:04:06,194 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:04:06,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:04:06,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:04:06,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1758004906] [2024-11-28 04:04:06,212 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:04:06,212 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:04:06,212 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:04:06,217 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:04:06,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2024-11-28 04:04:06,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:04:06,298 INFO L256 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-28 04:04:06,301 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:04:07,108 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 6 proven. 25 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2024-11-28 04:04:07,108 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:04:07,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:04:07,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265247671] [2024-11-28 04:04:07,377 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:04:07,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1758004906] [2024-11-28 04:04:07,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1758004906] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:04:07,377 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:04:07,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-28 04:04:07,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127374072] [2024-11-28 04:04:07,378 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:04:07,378 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 04:04:07,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:04:07,378 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 04:04:07,379 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2024-11-28 04:04:07,379 INFO L87 Difference]: Start difference. First operand 851 states and 1343 transitions. Second operand has 12 states, 10 states have (on average 7.0) internal successors, (70), 10 states have internal predecessors, (70), 6 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 6 states have call predecessors, (11), 6 states have call successors, (11) [2024-11-28 04:04:08,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:04:08,623 INFO L93 Difference]: Finished difference Result 937 states and 1449 transitions. [2024-11-28 04:04:08,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 04:04:08,624 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 7.0) internal successors, (70), 10 states have internal predecessors, (70), 6 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 6 states have call predecessors, (11), 6 states have call successors, (11) Word has length 116 [2024-11-28 04:04:08,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:04:08,628 INFO L225 Difference]: With dead ends: 937 [2024-11-28 04:04:08,628 INFO L226 Difference]: Without dead ends: 934 [2024-11-28 04:04:08,629 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=126, Invalid=426, Unknown=0, NotChecked=0, Total=552 [2024-11-28 04:04:08,630 INFO L435 NwaCegarLoop]: 70 mSDtfsCounter, 604 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 1199 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 609 SdHoareTripleChecker+Valid, 405 SdHoareTripleChecker+Invalid, 1239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 1199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:04:08,630 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [609 Valid, 405 Invalid, 1239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 1199 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 04:04:08,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 934 states. [2024-11-28 04:04:08,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 934 to 900. [2024-11-28 04:04:08,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 900 states, 768 states have (on average 1.67578125) internal successors, (1287), 826 states have internal predecessors, (1287), 71 states have call successors, (71), 2 states have call predecessors, (71), 2 states have return successors, (71), 71 states have call predecessors, (71), 71 states have call successors, (71) [2024-11-28 04:04:08,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 900 states to 900 states and 1429 transitions. [2024-11-28 04:04:08,695 INFO L78 Accepts]: Start accepts. Automaton has 900 states and 1429 transitions. Word has length 116 [2024-11-28 04:04:08,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:04:08,697 INFO L471 AbstractCegarLoop]: Abstraction has 900 states and 1429 transitions. [2024-11-28 04:04:08,697 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 7.0) internal successors, (70), 10 states have internal predecessors, (70), 6 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 6 states have call predecessors, (11), 6 states have call successors, (11) [2024-11-28 04:04:08,697 INFO L276 IsEmpty]: Start isEmpty. Operand 900 states and 1429 transitions. [2024-11-28 04:04:08,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-28 04:04:08,699 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:04:08,700 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:04:08,709 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Ended with exit code 0 [2024-11-28 04:04:08,904 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2024-11-28 04:04:08,904 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 04:04:08,904 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:04:08,905 INFO L85 PathProgramCache]: Analyzing trace with hash 133852643, now seen corresponding path program 1 times [2024-11-28 04:04:08,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:04:08,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318567666] [2024-11-28 04:04:08,905 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:04:08,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:04:08,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:04:08,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [595097010] [2024-11-28 04:04:08,935 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:04:08,935 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:04:08,935 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:04:08,938 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:04:08,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2024-11-28 04:04:09,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:04:09,016 INFO L256 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-28 04:04:09,018 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:04:09,774 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 6 proven. 26 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2024-11-28 04:04:09,774 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:04:10,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:04:10,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318567666] [2024-11-28 04:04:10,301 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:04:10,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [595097010] [2024-11-28 04:04:10,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [595097010] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:04:10,302 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:04:10,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-28 04:04:10,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235876487] [2024-11-28 04:04:10,302 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:04:10,302 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 04:04:10,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:04:10,302 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 04:04:10,303 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2024-11-28 04:04:10,303 INFO L87 Difference]: Start difference. First operand 900 states and 1429 transitions. Second operand has 12 states, 10 states have (on average 7.1) internal successors, (71), 10 states have internal predecessors, (71), 6 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 6 states have call predecessors, (11), 6 states have call successors, (11) [2024-11-28 04:04:11,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:04:11,383 INFO L93 Difference]: Finished difference Result 935 states and 1445 transitions. [2024-11-28 04:04:11,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 04:04:11,384 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 7.1) internal successors, (71), 10 states have internal predecessors, (71), 6 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 6 states have call predecessors, (11), 6 states have call successors, (11) Word has length 117 [2024-11-28 04:04:11,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:04:11,386 INFO L225 Difference]: With dead ends: 935 [2024-11-28 04:04:11,386 INFO L226 Difference]: Without dead ends: 934 [2024-11-28 04:04:11,386 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=126, Invalid=426, Unknown=0, NotChecked=0, Total=552 [2024-11-28 04:04:11,387 INFO L435 NwaCegarLoop]: 70 mSDtfsCounter, 613 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 1194 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 618 SdHoareTripleChecker+Valid, 365 SdHoareTripleChecker+Invalid, 1232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 04:04:11,387 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [618 Valid, 365 Invalid, 1232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1194 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 04:04:11,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 934 states. [2024-11-28 04:04:11,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 934 to 900. [2024-11-28 04:04:11,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 900 states, 768 states have (on average 1.6731770833333333) internal successors, (1285), 826 states have internal predecessors, (1285), 71 states have call successors, (71), 2 states have call predecessors, (71), 2 states have return successors, (71), 71 states have call predecessors, (71), 71 states have call successors, (71) [2024-11-28 04:04:11,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 900 states to 900 states and 1427 transitions. [2024-11-28 04:04:11,425 INFO L78 Accepts]: Start accepts. Automaton has 900 states and 1427 transitions. Word has length 117 [2024-11-28 04:04:11,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:04:11,426 INFO L471 AbstractCegarLoop]: Abstraction has 900 states and 1427 transitions. [2024-11-28 04:04:11,426 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 7.1) internal successors, (71), 10 states have internal predecessors, (71), 6 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 6 states have call predecessors, (11), 6 states have call successors, (11) [2024-11-28 04:04:11,426 INFO L276 IsEmpty]: Start isEmpty. Operand 900 states and 1427 transitions. [2024-11-28 04:04:11,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-28 04:04:11,428 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:04:11,428 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:04:11,438 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Ended with exit code 0 [2024-11-28 04:04:11,632 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:04:11,632 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 04:04:11,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:04:11,633 INFO L85 PathProgramCache]: Analyzing trace with hash -145535279, now seen corresponding path program 1 times [2024-11-28 04:04:11,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:04:11,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274980808] [2024-11-28 04:04:11,633 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:04:11,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:04:11,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:04:11,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1344144406] [2024-11-28 04:04:11,651 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:04:11,652 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:04:11,652 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:04:11,654 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:04:11,657 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2024-11-28 04:04:11,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:04:11,739 INFO L256 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-28 04:04:11,741 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:04:12,147 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 3 proven. 30 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2024-11-28 04:04:12,147 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:04:12,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:04:12,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274980808] [2024-11-28 04:04:12,234 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:04:12,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1344144406] [2024-11-28 04:04:12,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1344144406] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:04:12,235 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:04:12,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-28 04:04:12,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636925257] [2024-11-28 04:04:12,235 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:04:12,235 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:04:12,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:04:12,235 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:04:12,236 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:04:12,236 INFO L87 Difference]: Start difference. First operand 900 states and 1427 transitions. Second operand has 8 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-28 04:04:12,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:04:12,716 INFO L93 Difference]: Finished difference Result 1041 states and 1629 transitions. [2024-11-28 04:04:12,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 04:04:12,716 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) Word has length 118 [2024-11-28 04:04:12,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:04:12,719 INFO L225 Difference]: With dead ends: 1041 [2024-11-28 04:04:12,719 INFO L226 Difference]: Without dead ends: 1039 [2024-11-28 04:04:12,719 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:04:12,720 INFO L435 NwaCegarLoop]: 93 mSDtfsCounter, 225 mSDsluCounter, 369 mSDsCounter, 0 mSdLazyCounter, 422 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 462 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:04:12,720 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [234 Valid, 462 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 422 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 04:04:12,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1039 states. [2024-11-28 04:04:12,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1039 to 1000. [2024-11-28 04:04:12,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1000 states, 859 states have (on average 1.6891734575087312) internal successors, (1451), 917 states have internal predecessors, (1451), 80 states have call successors, (80), 2 states have call predecessors, (80), 2 states have return successors, (80), 80 states have call predecessors, (80), 80 states have call successors, (80) [2024-11-28 04:04:12,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1000 states to 1000 states and 1611 transitions. [2024-11-28 04:04:12,793 INFO L78 Accepts]: Start accepts. Automaton has 1000 states and 1611 transitions. Word has length 118 [2024-11-28 04:04:12,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:04:12,793 INFO L471 AbstractCegarLoop]: Abstraction has 1000 states and 1611 transitions. [2024-11-28 04:04:12,793 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-28 04:04:12,793 INFO L276 IsEmpty]: Start isEmpty. Operand 1000 states and 1611 transitions. [2024-11-28 04:04:12,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-28 04:04:12,794 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:04:12,795 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:04:12,805 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Forceful destruction successful, exit code 0 [2024-11-28 04:04:12,999 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable41 [2024-11-28 04:04:12,999 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 04:04:12,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:04:13,000 INFO L85 PathProgramCache]: Analyzing trace with hash -216626267, now seen corresponding path program 1 times [2024-11-28 04:04:13,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:04:13,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390361567] [2024-11-28 04:04:13,000 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:04:13,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:04:13,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:04:13,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [437957620] [2024-11-28 04:04:13,015 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:04:13,015 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:04:13,015 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:04:13,017 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:04:13,020 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2024-11-28 04:04:13,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:04:13,098 INFO L256 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-28 04:04:13,104 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:04:13,467 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 3 proven. 31 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2024-11-28 04:04:13,467 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:04:13,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:04:13,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390361567] [2024-11-28 04:04:13,760 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:04:13,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [437957620] [2024-11-28 04:04:13,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [437957620] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:04:13,760 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:04:13,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-28 04:04:13,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727331262] [2024-11-28 04:04:13,760 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:04:13,761 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:04:13,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:04:13,761 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:04:13,761 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:04:13,761 INFO L87 Difference]: Start difference. First operand 1000 states and 1611 transitions. Second operand has 8 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-28 04:04:14,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:04:14,201 INFO L93 Difference]: Finished difference Result 1041 states and 1624 transitions. [2024-11-28 04:04:14,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:04:14,201 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) Word has length 119 [2024-11-28 04:04:14,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:04:14,204 INFO L225 Difference]: With dead ends: 1041 [2024-11-28 04:04:14,204 INFO L226 Difference]: Without dead ends: 1039 [2024-11-28 04:04:14,205 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:04:14,205 INFO L435 NwaCegarLoop]: 130 mSDtfsCounter, 261 mSDsluCounter, 417 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 547 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:04:14,205 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [270 Valid, 547 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 428 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 04:04:14,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1039 states. [2024-11-28 04:04:14,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1039 to 1001. [2024-11-28 04:04:14,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1001 states, 860 states have (on average 1.6837209302325582) internal successors, (1448), 918 states have internal predecessors, (1448), 80 states have call successors, (80), 2 states have call predecessors, (80), 2 states have return successors, (80), 80 states have call predecessors, (80), 80 states have call successors, (80) [2024-11-28 04:04:14,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1001 states to 1001 states and 1608 transitions. [2024-11-28 04:04:14,269 INFO L78 Accepts]: Start accepts. Automaton has 1001 states and 1608 transitions. Word has length 119 [2024-11-28 04:04:14,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:04:14,269 INFO L471 AbstractCegarLoop]: Abstraction has 1001 states and 1608 transitions. [2024-11-28 04:04:14,270 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-28 04:04:14,270 INFO L276 IsEmpty]: Start isEmpty. Operand 1001 states and 1608 transitions. [2024-11-28 04:04:14,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-28 04:04:14,270 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:04:14,270 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:04:14,277 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Forceful destruction successful, exit code 0 [2024-11-28 04:04:14,473 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:04:14,473 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 04:04:14,473 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:04:14,474 INFO L85 PathProgramCache]: Analyzing trace with hash 1874520403, now seen corresponding path program 1 times [2024-11-28 04:04:14,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:04:14,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354249815] [2024-11-28 04:04:14,474 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:04:14,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:04:14,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:04:14,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1975436654] [2024-11-28 04:04:14,494 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:04:14,494 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:04:14,495 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:04:14,497 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:04:14,501 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2024-11-28 04:04:14,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:04:14,578 INFO L256 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-28 04:04:14,580 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:04:15,285 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 6 proven. 20 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2024-11-28 04:04:15,285 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:04:15,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:04:15,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354249815] [2024-11-28 04:04:15,375 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:04:15,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1975436654] [2024-11-28 04:04:15,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1975436654] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:04:15,376 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:04:15,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-28 04:04:15,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268194101] [2024-11-28 04:04:15,376 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:04:15,376 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 04:04:15,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:04:15,377 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 04:04:15,377 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:04:15,377 INFO L87 Difference]: Start difference. First operand 1001 states and 1608 transitions. Second operand has 12 states, 11 states have (on average 6.7272727272727275) internal successors, (74), 11 states have internal predecessors, (74), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-28 04:04:16,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:04:16,641 INFO L93 Difference]: Finished difference Result 1028 states and 1624 transitions. [2024-11-28 04:04:16,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 04:04:16,641 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.7272727272727275) internal successors, (74), 11 states have internal predecessors, (74), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) Word has length 120 [2024-11-28 04:04:16,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:04:16,645 INFO L225 Difference]: With dead ends: 1028 [2024-11-28 04:04:16,645 INFO L226 Difference]: Without dead ends: 1027 [2024-11-28 04:04:16,646 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=241, Unknown=0, NotChecked=0, Total=306 [2024-11-28 04:04:16,646 INFO L435 NwaCegarLoop]: 84 mSDtfsCounter, 352 mSDsluCounter, 420 mSDsCounter, 0 mSdLazyCounter, 1330 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 362 SdHoareTripleChecker+Valid, 504 SdHoareTripleChecker+Invalid, 1345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:04:16,646 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [362 Valid, 504 Invalid, 1345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1330 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-28 04:04:16,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1027 states. [2024-11-28 04:04:16,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1027 to 1001. [2024-11-28 04:04:16,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1001 states, 860 states have (on average 1.6813953488372093) internal successors, (1446), 918 states have internal predecessors, (1446), 80 states have call successors, (80), 2 states have call predecessors, (80), 2 states have return successors, (80), 80 states have call predecessors, (80), 80 states have call successors, (80) [2024-11-28 04:04:16,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1001 states to 1001 states and 1606 transitions. [2024-11-28 04:04:16,714 INFO L78 Accepts]: Start accepts. Automaton has 1001 states and 1606 transitions. Word has length 120 [2024-11-28 04:04:16,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:04:16,714 INFO L471 AbstractCegarLoop]: Abstraction has 1001 states and 1606 transitions. [2024-11-28 04:04:16,714 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.7272727272727275) internal successors, (74), 11 states have internal predecessors, (74), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-28 04:04:16,714 INFO L276 IsEmpty]: Start isEmpty. Operand 1001 states and 1606 transitions. [2024-11-28 04:04:16,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-28 04:04:16,715 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:04:16,715 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:04:16,724 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Forceful destruction successful, exit code 0 [2024-11-28 04:04:16,917 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2024-11-28 04:04:16,918 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 04:04:16,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:04:16,918 INFO L85 PathProgramCache]: Analyzing trace with hash -2019409561, now seen corresponding path program 1 times [2024-11-28 04:04:16,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:04:16,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187801631] [2024-11-28 04:04:16,919 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:04:16,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:04:16,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:04:16,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1597293367] [2024-11-28 04:04:16,936 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:04:16,937 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:04:16,937 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:04:16,939 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:04:16,945 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2024-11-28 04:04:17,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:04:17,018 INFO L256 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-28 04:04:17,019 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:04:17,527 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 3 proven. 24 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2024-11-28 04:04:17,527 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:04:17,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:04:17,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187801631] [2024-11-28 04:04:17,597 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:04:17,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1597293367] [2024-11-28 04:04:17,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1597293367] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:04:17,597 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:04:17,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-28 04:04:17,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149090476] [2024-11-28 04:04:17,597 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:04:17,597 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:04:17,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:04:17,598 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:04:17,598 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:04:17,598 INFO L87 Difference]: Start difference. First operand 1001 states and 1606 transitions. Second operand has 8 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 4 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-28 04:04:18,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:04:18,467 INFO L93 Difference]: Finished difference Result 1043 states and 1617 transitions. [2024-11-28 04:04:18,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:04:18,468 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 4 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 121 [2024-11-28 04:04:18,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:04:18,471 INFO L225 Difference]: With dead ends: 1043 [2024-11-28 04:04:18,471 INFO L226 Difference]: Without dead ends: 1028 [2024-11-28 04:04:18,472 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:04:18,472 INFO L435 NwaCegarLoop]: 105 mSDtfsCounter, 249 mSDsluCounter, 384 mSDsCounter, 0 mSdLazyCounter, 700 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 258 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 711 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 700 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:04:18,472 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [258 Valid, 489 Invalid, 711 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 700 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 04:04:18,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1028 states. [2024-11-28 04:04:18,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1028 to 998. [2024-11-28 04:04:18,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 998 states, 858 states have (on average 1.67016317016317) internal successors, (1433), 916 states have internal predecessors, (1433), 79 states have call successors, (79), 2 states have call predecessors, (79), 2 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-28 04:04:18,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 998 states to 998 states and 1591 transitions. [2024-11-28 04:04:18,514 INFO L78 Accepts]: Start accepts. Automaton has 998 states and 1591 transitions. Word has length 121 [2024-11-28 04:04:18,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:04:18,514 INFO L471 AbstractCegarLoop]: Abstraction has 998 states and 1591 transitions. [2024-11-28 04:04:18,514 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 4 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-28 04:04:18,514 INFO L276 IsEmpty]: Start isEmpty. Operand 998 states and 1591 transitions. [2024-11-28 04:04:18,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-28 04:04:18,514 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:04:18,514 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:04:18,520 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Forceful destruction successful, exit code 0 [2024-11-28 04:04:18,715 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2024-11-28 04:04:18,715 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 04:04:18,715 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:04:18,715 INFO L85 PathProgramCache]: Analyzing trace with hash 874466869, now seen corresponding path program 1 times [2024-11-28 04:04:18,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:04:18,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904354783] [2024-11-28 04:04:18,715 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:04:18,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:04:18,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:04:18,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1889960104] [2024-11-28 04:04:18,739 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:04:18,739 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:04:18,739 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:04:18,743 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:04:18,745 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2024-11-28 04:04:18,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:04:18,824 INFO L256 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-28 04:04:18,826 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:04:19,510 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 6 proven. 32 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-11-28 04:04:19,511 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:04:27,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:04:27,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904354783] [2024-11-28 04:04:27,767 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:04:27,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1889960104] [2024-11-28 04:04:27,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1889960104] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:04:27,767 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:04:27,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-28 04:04:27,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123177856] [2024-11-28 04:04:27,767 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:04:27,768 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 04:04:27,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:04:27,768 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 04:04:27,768 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=167, Unknown=2, NotChecked=0, Total=210 [2024-11-28 04:04:27,768 INFO L87 Difference]: Start difference. First operand 998 states and 1591 transitions. Second operand has 11 states, 9 states have (on average 8.444444444444445) internal successors, (76), 9 states have internal predecessors, (76), 6 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2024-11-28 04:04:28,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:04:28,837 INFO L93 Difference]: Finished difference Result 1022 states and 1607 transitions. [2024-11-28 04:04:28,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 04:04:28,837 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 8.444444444444445) internal successors, (76), 9 states have internal predecessors, (76), 6 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) Word has length 127 [2024-11-28 04:04:28,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:04:28,840 INFO L225 Difference]: With dead ends: 1022 [2024-11-28 04:04:28,840 INFO L226 Difference]: Without dead ends: 1020 [2024-11-28 04:04:28,840 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 8.4s TimeCoverageRelationStatistics Valid=84, Invalid=294, Unknown=2, NotChecked=0, Total=380 [2024-11-28 04:04:28,840 INFO L435 NwaCegarLoop]: 68 mSDtfsCounter, 399 mSDsluCounter, 398 mSDsCounter, 0 mSdLazyCounter, 1276 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 404 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 1301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 04:04:28,840 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [404 Valid, 466 Invalid, 1301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1276 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 04:04:28,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1020 states. [2024-11-28 04:04:28,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1020 to 998. [2024-11-28 04:04:28,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 998 states, 858 states have (on average 1.6655011655011656) internal successors, (1429), 916 states have internal predecessors, (1429), 79 states have call successors, (79), 2 states have call predecessors, (79), 2 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-28 04:04:28,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 998 states to 998 states and 1587 transitions. [2024-11-28 04:04:28,885 INFO L78 Accepts]: Start accepts. Automaton has 998 states and 1587 transitions. Word has length 127 [2024-11-28 04:04:28,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:04:28,885 INFO L471 AbstractCegarLoop]: Abstraction has 998 states and 1587 transitions. [2024-11-28 04:04:28,885 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 8.444444444444445) internal successors, (76), 9 states have internal predecessors, (76), 6 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2024-11-28 04:04:28,885 INFO L276 IsEmpty]: Start isEmpty. Operand 998 states and 1587 transitions. [2024-11-28 04:04:28,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-28 04:04:28,886 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:04:28,886 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:04:28,892 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Forceful destruction successful, exit code 0 [2024-11-28 04:04:29,086 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2024-11-28 04:04:29,087 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 04:04:29,087 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:04:29,087 INFO L85 PathProgramCache]: Analyzing trace with hash 1338669258, now seen corresponding path program 1 times [2024-11-28 04:04:29,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:04:29,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967269547] [2024-11-28 04:04:29,087 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:04:29,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:04:29,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:04:29,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [502267629] [2024-11-28 04:04:29,105 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:04:29,105 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:04:29,105 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:04:29,108 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:04:29,120 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2024-11-28 04:04:29,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:04:29,192 INFO L256 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-28 04:04:29,194 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:04:29,907 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 6 proven. 33 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-11-28 04:04:29,907 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:04:34,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:04:34,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967269547] [2024-11-28 04:04:34,346 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:04:34,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [502267629] [2024-11-28 04:04:34,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [502267629] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:04:34,347 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:04:34,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-28 04:04:34,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729699763] [2024-11-28 04:04:34,347 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:04:34,347 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 04:04:34,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:04:34,348 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 04:04:34,348 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=168, Unknown=1, NotChecked=0, Total=210 [2024-11-28 04:04:34,348 INFO L87 Difference]: Start difference. First operand 998 states and 1587 transitions. Second operand has 11 states, 9 states have (on average 8.555555555555555) internal successors, (77), 9 states have internal predecessors, (77), 6 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2024-11-28 04:04:35,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:04:35,355 INFO L93 Difference]: Finished difference Result 1022 states and 1603 transitions. [2024-11-28 04:04:35,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 04:04:35,355 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 8.555555555555555) internal successors, (77), 9 states have internal predecessors, (77), 6 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) Word has length 128 [2024-11-28 04:04:35,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:04:35,359 INFO L225 Difference]: With dead ends: 1022 [2024-11-28 04:04:35,359 INFO L226 Difference]: Without dead ends: 1020 [2024-11-28 04:04:35,359 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=88, Invalid=291, Unknown=1, NotChecked=0, Total=380 [2024-11-28 04:04:35,360 INFO L435 NwaCegarLoop]: 68 mSDtfsCounter, 648 mSDsluCounter, 377 mSDsCounter, 0 mSdLazyCounter, 1216 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 653 SdHoareTripleChecker+Valid, 445 SdHoareTripleChecker+Invalid, 1261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 1216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:04:35,360 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [653 Valid, 445 Invalid, 1261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 1216 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 04:04:35,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1020 states. [2024-11-28 04:04:35,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1020 to 998. [2024-11-28 04:04:35,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 998 states, 858 states have (on average 1.6608391608391608) internal successors, (1425), 916 states have internal predecessors, (1425), 79 states have call successors, (79), 2 states have call predecessors, (79), 2 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-28 04:04:35,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 998 states to 998 states and 1583 transitions. [2024-11-28 04:04:35,401 INFO L78 Accepts]: Start accepts. Automaton has 998 states and 1583 transitions. Word has length 128 [2024-11-28 04:04:35,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:04:35,401 INFO L471 AbstractCegarLoop]: Abstraction has 998 states and 1583 transitions. [2024-11-28 04:04:35,401 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 8.555555555555555) internal successors, (77), 9 states have internal predecessors, (77), 6 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2024-11-28 04:04:35,401 INFO L276 IsEmpty]: Start isEmpty. Operand 998 states and 1583 transitions. [2024-11-28 04:04:35,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-28 04:04:35,402 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:04:35,402 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:04:35,409 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Forceful destruction successful, exit code 0 [2024-11-28 04:04:35,602 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2024-11-28 04:04:35,602 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 04:04:35,602 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:04:35,603 INFO L85 PathProgramCache]: Analyzing trace with hash -1450925865, now seen corresponding path program 1 times [2024-11-28 04:04:35,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:04:35,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146254997] [2024-11-28 04:04:35,603 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:04:35,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:04:35,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:04:35,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [235639174] [2024-11-28 04:04:35,619 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:04:35,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:04:35,619 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:04:35,621 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:04:35,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2024-11-28 04:04:35,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:04:35,718 INFO L256 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-28 04:04:35,719 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:04:36,609 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 6 proven. 34 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-11-28 04:04:36,609 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:04:40,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:04:40,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146254997] [2024-11-28 04:04:40,981 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:04:40,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [235639174] [2024-11-28 04:04:40,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [235639174] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:04:40,981 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:04:40,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-11-28 04:04:40,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851209582] [2024-11-28 04:04:40,981 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:04:40,981 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 04:04:40,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:04:40,982 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 04:04:40,982 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=281, Unknown=1, NotChecked=0, Total=342 [2024-11-28 04:04:40,982 INFO L87 Difference]: Start difference. First operand 998 states and 1583 transitions. Second operand has 13 states, 11 states have (on average 7.090909090909091) internal successors, (78), 11 states have internal predecessors, (78), 6 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2024-11-28 04:04:42,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:04:42,498 INFO L93 Difference]: Finished difference Result 1030 states and 1613 transitions. [2024-11-28 04:04:42,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 04:04:42,499 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 7.090909090909091) internal successors, (78), 11 states have internal predecessors, (78), 6 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) Word has length 129 [2024-11-28 04:04:42,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:04:42,501 INFO L225 Difference]: With dead ends: 1030 [2024-11-28 04:04:42,501 INFO L226 Difference]: Without dead ends: 1028 [2024-11-28 04:04:42,502 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=117, Invalid=532, Unknown=1, NotChecked=0, Total=650 [2024-11-28 04:04:42,502 INFO L435 NwaCegarLoop]: 61 mSDtfsCounter, 528 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 1675 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 533 SdHoareTripleChecker+Valid, 404 SdHoareTripleChecker+Invalid, 1707 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1675 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:04:42,502 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [533 Valid, 404 Invalid, 1707 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1675 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-28 04:04:42,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1028 states. [2024-11-28 04:04:42,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1028 to 998. [2024-11-28 04:04:42,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 998 states, 858 states have (on average 1.656177156177156) internal successors, (1421), 916 states have internal predecessors, (1421), 79 states have call successors, (79), 2 states have call predecessors, (79), 2 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-28 04:04:42,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 998 states to 998 states and 1579 transitions. [2024-11-28 04:04:42,564 INFO L78 Accepts]: Start accepts. Automaton has 998 states and 1579 transitions. Word has length 129 [2024-11-28 04:04:42,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:04:42,564 INFO L471 AbstractCegarLoop]: Abstraction has 998 states and 1579 transitions. [2024-11-28 04:04:42,565 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 7.090909090909091) internal successors, (78), 11 states have internal predecessors, (78), 6 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2024-11-28 04:04:42,565 INFO L276 IsEmpty]: Start isEmpty. Operand 998 states and 1579 transitions. [2024-11-28 04:04:42,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-28 04:04:42,566 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:04:42,566 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:04:42,574 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Forceful destruction successful, exit code 0 [2024-11-28 04:04:42,766 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2024-11-28 04:04:42,767 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 04:04:42,767 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:04:42,767 INFO L85 PathProgramCache]: Analyzing trace with hash -2029028756, now seen corresponding path program 1 times [2024-11-28 04:04:42,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:04:42,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139627841] [2024-11-28 04:04:42,767 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:04:42,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:04:42,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:04:42,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1549988137] [2024-11-28 04:04:42,781 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:04:42,781 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:04:42,781 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:04:42,784 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:04:42,786 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2024-11-28 04:04:42,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:04:42,867 INFO L256 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-28 04:04:42,869 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:04:43,685 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 6 proven. 35 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-11-28 04:04:43,686 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:04:56,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:04:56,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139627841] [2024-11-28 04:04:56,337 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:04:56,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1549988137] [2024-11-28 04:04:56,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1549988137] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:04:56,337 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:04:56,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-11-28 04:04:56,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799289687] [2024-11-28 04:04:56,338 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:04:56,338 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 04:04:56,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:04:56,338 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 04:04:56,338 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=279, Unknown=3, NotChecked=0, Total=342 [2024-11-28 04:04:56,339 INFO L87 Difference]: Start difference. First operand 998 states and 1579 transitions. Second operand has 13 states, 11 states have (on average 7.181818181818182) internal successors, (79), 11 states have internal predecessors, (79), 6 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2024-11-28 04:04:57,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:04:57,774 INFO L93 Difference]: Finished difference Result 1030 states and 1609 transitions. [2024-11-28 04:04:57,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 04:04:57,775 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 7.181818181818182) internal successors, (79), 11 states have internal predecessors, (79), 6 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) Word has length 130 [2024-11-28 04:04:57,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:04:57,780 INFO L225 Difference]: With dead ends: 1030 [2024-11-28 04:04:57,781 INFO L226 Difference]: Without dead ends: 1028 [2024-11-28 04:04:57,781 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 12.6s TimeCoverageRelationStatistics Valid=117, Invalid=530, Unknown=3, NotChecked=0, Total=650 [2024-11-28 04:04:57,782 INFO L435 NwaCegarLoop]: 61 mSDtfsCounter, 418 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 1675 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 423 SdHoareTripleChecker+Valid, 404 SdHoareTripleChecker+Invalid, 1702 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1675 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:04:57,782 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [423 Valid, 404 Invalid, 1702 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1675 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-28 04:04:57,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1028 states. [2024-11-28 04:04:57,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1028 to 998. [2024-11-28 04:04:57,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 998 states, 858 states have (on average 1.6515151515151516) internal successors, (1417), 916 states have internal predecessors, (1417), 79 states have call successors, (79), 2 states have call predecessors, (79), 2 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-28 04:04:57,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 998 states to 998 states and 1575 transitions. [2024-11-28 04:04:57,864 INFO L78 Accepts]: Start accepts. Automaton has 998 states and 1575 transitions. Word has length 130 [2024-11-28 04:04:57,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:04:57,864 INFO L471 AbstractCegarLoop]: Abstraction has 998 states and 1575 transitions. [2024-11-28 04:04:57,865 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 7.181818181818182) internal successors, (79), 11 states have internal predecessors, (79), 6 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2024-11-28 04:04:57,865 INFO L276 IsEmpty]: Start isEmpty. Operand 998 states and 1575 transitions. [2024-11-28 04:04:57,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-28 04:04:57,865 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:04:57,866 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:04:57,875 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Forceful destruction successful, exit code 0 [2024-11-28 04:04:58,066 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2024-11-28 04:04:58,066 INFO L396 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 04:04:58,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:04:58,066 INFO L85 PathProgramCache]: Analyzing trace with hash 1524618105, now seen corresponding path program 1 times [2024-11-28 04:04:58,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:04:58,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914290269] [2024-11-28 04:04:58,067 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:04:58,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:04:58,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:04:58,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [726815519] [2024-11-28 04:04:58,084 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:04:58,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:04:58,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:04:58,087 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:04:58,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2024-11-28 04:04:58,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:04:58,168 INFO L256 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-28 04:04:58,171 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:04:59,295 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 6 proven. 36 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-11-28 04:04:59,296 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:04:59,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:04:59,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914290269] [2024-11-28 04:04:59,368 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:04:59,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [726815519] [2024-11-28 04:04:59,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [726815519] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:04:59,368 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:04:59,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-11-28 04:04:59,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073574955] [2024-11-28 04:04:59,369 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:04:59,369 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 04:04:59,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:04:59,370 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 04:04:59,370 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2024-11-28 04:04:59,370 INFO L87 Difference]: Start difference. First operand 998 states and 1575 transitions. Second operand has 14 states, 12 states have (on average 6.666666666666667) internal successors, (80), 12 states have internal predecessors, (80), 6 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2024-11-28 04:05:01,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:05:01,093 INFO L93 Difference]: Finished difference Result 1029 states and 1605 transitions. [2024-11-28 04:05:01,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 04:05:01,094 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 6.666666666666667) internal successors, (80), 12 states have internal predecessors, (80), 6 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) Word has length 131 [2024-11-28 04:05:01,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:05:01,100 INFO L225 Difference]: With dead ends: 1029 [2024-11-28 04:05:01,101 INFO L226 Difference]: Without dead ends: 1028 [2024-11-28 04:05:01,101 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=75, Invalid=267, Unknown=0, NotChecked=0, Total=342 [2024-11-28 04:05:01,102 INFO L435 NwaCegarLoop]: 55 mSDtfsCounter, 433 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 1834 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 444 SdHoareTripleChecker+Valid, 283 SdHoareTripleChecker+Invalid, 1851 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1834 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:05:01,102 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [444 Valid, 283 Invalid, 1851 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1834 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-28 04:05:01,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1028 states. [2024-11-28 04:05:01,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1028 to 998. [2024-11-28 04:05:01,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 998 states, 858 states have (on average 1.6491841491841492) internal successors, (1415), 916 states have internal predecessors, (1415), 79 states have call successors, (79), 2 states have call predecessors, (79), 2 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-28 04:05:01,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 998 states to 998 states and 1573 transitions. [2024-11-28 04:05:01,178 INFO L78 Accepts]: Start accepts. Automaton has 998 states and 1573 transitions. Word has length 131 [2024-11-28 04:05:01,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:05:01,178 INFO L471 AbstractCegarLoop]: Abstraction has 998 states and 1573 transitions. [2024-11-28 04:05:01,178 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 6.666666666666667) internal successors, (80), 12 states have internal predecessors, (80), 6 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2024-11-28 04:05:01,178 INFO L276 IsEmpty]: Start isEmpty. Operand 998 states and 1573 transitions. [2024-11-28 04:05:01,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-28 04:05:01,179 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:05:01,179 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:05:01,185 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Ended with exit code 0 [2024-11-28 04:05:01,379 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2024-11-28 04:05:01,380 INFO L396 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 04:05:01,380 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:05:01,380 INFO L85 PathProgramCache]: Analyzing trace with hash 18521102, now seen corresponding path program 1 times [2024-11-28 04:05:01,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:05:01,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311465094] [2024-11-28 04:05:01,380 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:05:01,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:05:01,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:05:01,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1137729173] [2024-11-28 04:05:01,398 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:05:01,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:05:01,398 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:05:01,402 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:05:01,404 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2024-11-28 04:05:01,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:05:01,489 INFO L256 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-28 04:05:01,491 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:05:02,856 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 3 proven. 31 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2024-11-28 04:05:02,857 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:05:03,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:05:03,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311465094] [2024-11-28 04:05:03,386 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:05:03,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1137729173] [2024-11-28 04:05:03,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1137729173] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:05:03,386 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:05:03,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-28 04:05:03,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540820636] [2024-11-28 04:05:03,386 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:05:03,386 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 04:05:03,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:05:03,387 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 04:05:03,387 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2024-11-28 04:05:03,387 INFO L87 Difference]: Start difference. First operand 998 states and 1573 transitions. Second operand has 11 states, 10 states have (on average 8.1) internal successors, (81), 10 states have internal predecessors, (81), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) [2024-11-28 04:05:04,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:05:04,581 INFO L93 Difference]: Finished difference Result 1017 states and 1589 transitions. [2024-11-28 04:05:04,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 04:05:04,581 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 8.1) internal successors, (81), 10 states have internal predecessors, (81), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) Word has length 132 [2024-11-28 04:05:04,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:05:04,586 INFO L225 Difference]: With dead ends: 1017 [2024-11-28 04:05:04,586 INFO L226 Difference]: Without dead ends: 1014 [2024-11-28 04:05:04,586 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2024-11-28 04:05:04,587 INFO L435 NwaCegarLoop]: 76 mSDtfsCounter, 314 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 1364 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 325 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 1376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:05:04,587 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [325 Valid, 328 Invalid, 1376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1364 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-28 04:05:04,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1014 states. [2024-11-28 04:05:04,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1014 to 998. [2024-11-28 04:05:04,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 998 states, 858 states have (on average 1.6421911421911422) internal successors, (1409), 916 states have internal predecessors, (1409), 79 states have call successors, (79), 2 states have call predecessors, (79), 2 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-28 04:05:04,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 998 states to 998 states and 1567 transitions. [2024-11-28 04:05:04,658 INFO L78 Accepts]: Start accepts. Automaton has 998 states and 1567 transitions. Word has length 132 [2024-11-28 04:05:04,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:05:04,659 INFO L471 AbstractCegarLoop]: Abstraction has 998 states and 1567 transitions. [2024-11-28 04:05:04,659 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 8.1) internal successors, (81), 10 states have internal predecessors, (81), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) [2024-11-28 04:05:04,659 INFO L276 IsEmpty]: Start isEmpty. Operand 998 states and 1567 transitions. [2024-11-28 04:05:04,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-28 04:05:04,660 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:05:04,660 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:05:04,668 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Ended with exit code 0 [2024-11-28 04:05:04,864 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:05:04,864 INFO L396 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 04:05:04,864 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:05:04,864 INFO L85 PathProgramCache]: Analyzing trace with hash 705069349, now seen corresponding path program 1 times [2024-11-28 04:05:04,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:05:04,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375144168] [2024-11-28 04:05:04,865 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:05:04,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:05:04,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:05:04,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [626458492] [2024-11-28 04:05:04,881 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:05:04,882 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:05:04,882 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:05:04,884 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:05:04,887 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Waiting until timeout for monitored process [2024-11-28 04:05:04,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:05:04,968 INFO L256 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-28 04:05:04,970 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:05:06,381 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 6 proven. 30 refuted. 0 times theorem prover too weak. 129 trivial. 0 not checked. [2024-11-28 04:05:06,381 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:05:10,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:05:10,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375144168] [2024-11-28 04:05:10,750 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:05:10,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [626458492] [2024-11-28 04:05:10,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [626458492] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:05:10,751 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:05:10,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-28 04:05:10,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516259288] [2024-11-28 04:05:10,751 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:05:10,751 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 04:05:10,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:05:10,752 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 04:05:10,752 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=218, Unknown=1, NotChecked=0, Total=272 [2024-11-28 04:05:10,752 INFO L87 Difference]: Start difference. First operand 998 states and 1567 transitions. Second operand has 12 states, 11 states have (on average 7.454545454545454) internal successors, (82), 11 states have internal predecessors, (82), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2024-11-28 04:05:13,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:05:13,488 INFO L93 Difference]: Finished difference Result 1015 states and 1583 transitions. [2024-11-28 04:05:13,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 04:05:13,489 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.454545454545454) internal successors, (82), 11 states have internal predecessors, (82), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) Word has length 138 [2024-11-28 04:05:13,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:05:13,492 INFO L225 Difference]: With dead ends: 1015 [2024-11-28 04:05:13,492 INFO L226 Difference]: Without dead ends: 1014 [2024-11-28 04:05:13,493 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=104, Invalid=401, Unknown=1, NotChecked=0, Total=506 [2024-11-28 04:05:13,493 INFO L435 NwaCegarLoop]: 79 mSDtfsCounter, 510 mSDsluCounter, 490 mSDsCounter, 0 mSdLazyCounter, 1230 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 515 SdHoareTripleChecker+Valid, 569 SdHoareTripleChecker+Invalid, 1267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:05:13,493 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [515 Valid, 569 Invalid, 1267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1230 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-28 04:05:13,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1014 states. [2024-11-28 04:05:13,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1014 to 998. [2024-11-28 04:05:13,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 998 states, 858 states have (on average 1.6398601398601398) internal successors, (1407), 916 states have internal predecessors, (1407), 79 states have call successors, (79), 2 states have call predecessors, (79), 2 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-28 04:05:13,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 998 states to 998 states and 1565 transitions. [2024-11-28 04:05:13,567 INFO L78 Accepts]: Start accepts. Automaton has 998 states and 1565 transitions. Word has length 138 [2024-11-28 04:05:13,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:05:13,568 INFO L471 AbstractCegarLoop]: Abstraction has 998 states and 1565 transitions. [2024-11-28 04:05:13,568 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.454545454545454) internal successors, (82), 11 states have internal predecessors, (82), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2024-11-28 04:05:13,568 INFO L276 IsEmpty]: Start isEmpty. Operand 998 states and 1565 transitions. [2024-11-28 04:05:13,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-28 04:05:13,569 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:05:13,569 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:05:13,579 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Ended with exit code 0 [2024-11-28 04:05:13,769 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:05:13,770 INFO L396 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 04:05:13,770 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:05:13,770 INFO L85 PathProgramCache]: Analyzing trace with hash 382313447, now seen corresponding path program 1 times [2024-11-28 04:05:13,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:05:13,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547365760] [2024-11-28 04:05:13,771 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:05:13,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:05:13,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:05:13,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [179747989] [2024-11-28 04:05:13,795 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:05:13,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:05:13,795 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:05:13,797 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:05:13,801 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Waiting until timeout for monitored process [2024-11-28 04:05:13,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:05:13,896 INFO L256 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-28 04:05:13,899 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:05:15,656 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 18 proven. 46 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2024-11-28 04:05:15,656 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:05:15,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:05:15,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547365760] [2024-11-28 04:05:15,810 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:05:15,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [179747989] [2024-11-28 04:05:15,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [179747989] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:05:15,810 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:05:15,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2024-11-28 04:05:15,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862676658] [2024-11-28 04:05:15,811 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:05:15,811 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-28 04:05:15,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:05:15,811 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-28 04:05:15,812 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=237, Unknown=0, NotChecked=0, Total=306 [2024-11-28 04:05:15,812 INFO L87 Difference]: Start difference. First operand 998 states and 1565 transitions. Second operand has 16 states, 15 states have (on average 5.733333333333333) internal successors, (86), 15 states have internal predecessors, (86), 6 states have call successors, (13), 1 states have call predecessors, (13), 3 states have return successors, (13), 6 states have call predecessors, (13), 6 states have call successors, (13) [2024-11-28 04:05:17,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:05:17,872 INFO L93 Difference]: Finished difference Result 1017 states and 1583 transitions. [2024-11-28 04:05:17,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-28 04:05:17,873 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 5.733333333333333) internal successors, (86), 15 states have internal predecessors, (86), 6 states have call successors, (13), 1 states have call predecessors, (13), 3 states have return successors, (13), 6 states have call predecessors, (13), 6 states have call successors, (13) Word has length 139 [2024-11-28 04:05:17,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:05:17,875 INFO L225 Difference]: With dead ends: 1017 [2024-11-28 04:05:17,875 INFO L226 Difference]: Without dead ends: 1016 [2024-11-28 04:05:17,876 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=102, Invalid=360, Unknown=0, NotChecked=0, Total=462 [2024-11-28 04:05:17,876 INFO L435 NwaCegarLoop]: 48 mSDtfsCounter, 367 mSDsluCounter, 389 mSDsCounter, 0 mSdLazyCounter, 1880 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 378 SdHoareTripleChecker+Valid, 437 SdHoareTripleChecker+Invalid, 1892 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1880 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:05:17,877 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [378 Valid, 437 Invalid, 1892 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1880 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-28 04:05:17,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1016 states. [2024-11-28 04:05:17,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1016 to 998. [2024-11-28 04:05:17,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 998 states, 858 states have (on average 1.6375291375291374) internal successors, (1405), 916 states have internal predecessors, (1405), 79 states have call successors, (79), 2 states have call predecessors, (79), 2 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-28 04:05:17,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 998 states to 998 states and 1563 transitions. [2024-11-28 04:05:17,939 INFO L78 Accepts]: Start accepts. Automaton has 998 states and 1563 transitions. Word has length 139 [2024-11-28 04:05:17,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:05:17,939 INFO L471 AbstractCegarLoop]: Abstraction has 998 states and 1563 transitions. [2024-11-28 04:05:17,939 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 5.733333333333333) internal successors, (86), 15 states have internal predecessors, (86), 6 states have call successors, (13), 1 states have call predecessors, (13), 3 states have return successors, (13), 6 states have call predecessors, (13), 6 states have call successors, (13) [2024-11-28 04:05:17,939 INFO L276 IsEmpty]: Start isEmpty. Operand 998 states and 1563 transitions. [2024-11-28 04:05:17,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-28 04:05:17,939 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:05:17,940 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:05:17,947 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Forceful destruction successful, exit code 0 [2024-11-28 04:05:18,143 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:05:18,143 INFO L396 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 04:05:18,143 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:05:18,144 INFO L85 PathProgramCache]: Analyzing trace with hash -753260119, now seen corresponding path program 1 times [2024-11-28 04:05:18,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:05:18,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585534234] [2024-11-28 04:05:18,144 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:05:18,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:05:18,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:05:18,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1899987340] [2024-11-28 04:05:18,165 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:05:18,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:05:18,166 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:05:18,170 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:05:18,175 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Waiting until timeout for monitored process [2024-11-28 04:05:18,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:05:18,247 INFO L256 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-28 04:05:18,249 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:05:20,043 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 6 proven. 34 refuted. 0 times theorem prover too weak. 129 trivial. 0 not checked. [2024-11-28 04:05:20,043 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:05:20,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:05:20,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585534234] [2024-11-28 04:05:20,108 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:05:20,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1899987340] [2024-11-28 04:05:20,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1899987340] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:05:20,108 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:05:20,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-11-28 04:05:20,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360656631] [2024-11-28 04:05:20,108 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:05:20,108 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 04:05:20,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:05:20,109 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 04:05:20,109 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:05:20,109 INFO L87 Difference]: Start difference. First operand 998 states and 1563 transitions. Second operand has 13 states, 12 states have (on average 7.166666666666667) internal successors, (86), 12 states have internal predecessors, (86), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2024-11-28 04:05:24,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:05:24,545 INFO L93 Difference]: Finished difference Result 1015 states and 1579 transitions. [2024-11-28 04:05:24,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 04:05:24,546 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 7.166666666666667) internal successors, (86), 12 states have internal predecessors, (86), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) Word has length 142 [2024-11-28 04:05:24,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:05:24,548 INFO L225 Difference]: With dead ends: 1015 [2024-11-28 04:05:24,548 INFO L226 Difference]: Without dead ends: 1014 [2024-11-28 04:05:24,549 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=70, Invalid=350, Unknown=0, NotChecked=0, Total=420 [2024-11-28 04:05:24,549 INFO L435 NwaCegarLoop]: 71 mSDtfsCounter, 504 mSDsluCounter, 390 mSDsCounter, 0 mSdLazyCounter, 1556 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 509 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 1593 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1556 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:05:24,549 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [509 Valid, 461 Invalid, 1593 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1556 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-28 04:05:24,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1014 states. [2024-11-28 04:05:24,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1014 to 998. [2024-11-28 04:05:24,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 998 states, 858 states have (on average 1.6351981351981353) internal successors, (1403), 916 states have internal predecessors, (1403), 79 states have call successors, (79), 2 states have call predecessors, (79), 2 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-28 04:05:24,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 998 states to 998 states and 1561 transitions. [2024-11-28 04:05:24,603 INFO L78 Accepts]: Start accepts. Automaton has 998 states and 1561 transitions. Word has length 142 [2024-11-28 04:05:24,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:05:24,603 INFO L471 AbstractCegarLoop]: Abstraction has 998 states and 1561 transitions. [2024-11-28 04:05:24,603 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 7.166666666666667) internal successors, (86), 12 states have internal predecessors, (86), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2024-11-28 04:05:24,603 INFO L276 IsEmpty]: Start isEmpty. Operand 998 states and 1561 transitions. [2024-11-28 04:05:24,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-28 04:05:24,604 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:05:24,604 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:05:24,613 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Forceful destruction successful, exit code 0 [2024-11-28 04:05:24,805 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53,50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:05:24,805 INFO L396 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 04:05:24,805 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:05:24,805 INFO L85 PathProgramCache]: Analyzing trace with hash -1876227093, now seen corresponding path program 1 times [2024-11-28 04:05:24,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:05:24,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107098875] [2024-11-28 04:05:24,806 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:05:24,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:05:24,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:05:24,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [512516681] [2024-11-28 04:05:24,824 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:05:24,824 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:05:24,824 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:05:24,826 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:05:24,830 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Waiting until timeout for monitored process [2024-11-28 04:05:24,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:05:24,912 INFO L256 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-28 04:05:24,914 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:05:25,581 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 12 proven. 29 refuted. 0 times theorem prover too weak. 129 trivial. 0 not checked. [2024-11-28 04:05:25,581 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:05:25,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:05:25,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107098875] [2024-11-28 04:05:25,659 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:05:25,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [512516681] [2024-11-28 04:05:25,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [512516681] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:05:25,659 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:05:25,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-11-28 04:05:25,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700972902] [2024-11-28 04:05:25,659 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:05:25,660 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 04:05:25,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:05:25,660 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 04:05:25,661 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:05:25,662 INFO L87 Difference]: Start difference. First operand 998 states and 1561 transitions. Second operand has 10 states, 9 states have (on average 9.666666666666666) internal successors, (87), 9 states have internal predecessors, (87), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 5 states have call successors, (13) [2024-11-28 04:05:26,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:05:26,363 INFO L93 Difference]: Finished difference Result 1017 states and 1577 transitions. [2024-11-28 04:05:26,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 04:05:26,363 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 9.666666666666666) internal successors, (87), 9 states have internal predecessors, (87), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 5 states have call successors, (13) Word has length 143 [2024-11-28 04:05:26,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:05:26,366 INFO L225 Difference]: With dead ends: 1017 [2024-11-28 04:05:26,366 INFO L226 Difference]: Without dead ends: 1016 [2024-11-28 04:05:26,366 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:05:26,367 INFO L435 NwaCegarLoop]: 131 mSDtfsCounter, 130 mSDsluCounter, 535 mSDsCounter, 0 mSdLazyCounter, 807 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 666 SdHoareTripleChecker+Invalid, 811 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 807 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:05:26,367 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 666 Invalid, 811 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 807 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 04:05:26,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1016 states. [2024-11-28 04:05:26,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1016 to 998. [2024-11-28 04:05:26,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 998 states, 858 states have (on average 1.632867132867133) internal successors, (1401), 916 states have internal predecessors, (1401), 79 states have call successors, (79), 2 states have call predecessors, (79), 2 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-28 04:05:26,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 998 states to 998 states and 1559 transitions. [2024-11-28 04:05:26,422 INFO L78 Accepts]: Start accepts. Automaton has 998 states and 1559 transitions. Word has length 143 [2024-11-28 04:05:26,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:05:26,422 INFO L471 AbstractCegarLoop]: Abstraction has 998 states and 1559 transitions. [2024-11-28 04:05:26,422 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 9.666666666666666) internal successors, (87), 9 states have internal predecessors, (87), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 5 states have call successors, (13) [2024-11-28 04:05:26,423 INFO L276 IsEmpty]: Start isEmpty. Operand 998 states and 1559 transitions. [2024-11-28 04:05:26,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-28 04:05:26,423 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:05:26,423 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:05:26,433 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Ended with exit code 0 [2024-11-28 04:05:26,624 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54,51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:05:26,624 INFO L396 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 04:05:26,624 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:05:26,624 INFO L85 PathProgramCache]: Analyzing trace with hash 23179821, now seen corresponding path program 1 times [2024-11-28 04:05:26,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:05:26,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893759668] [2024-11-28 04:05:26,624 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:05:26,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:05:26,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:05:26,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [150981414] [2024-11-28 04:05:26,643 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:05:26,643 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:05:26,643 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:05:26,645 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:05:26,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Waiting until timeout for monitored process [2024-11-28 04:05:26,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:05:26,738 INFO L256 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-11-28 04:05:26,740 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:05:28,912 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 6 proven. 47 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2024-11-28 04:05:28,913 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:05:29,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:05:29,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893759668] [2024-11-28 04:05:29,003 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:05:29,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [150981414] [2024-11-28 04:05:29,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [150981414] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:05:29,003 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:05:29,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-11-28 04:05:29,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81863337] [2024-11-28 04:05:29,003 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:05:29,004 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 04:05:29,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:05:29,004 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 04:05:29,004 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2024-11-28 04:05:29,005 INFO L87 Difference]: Start difference. First operand 998 states and 1559 transitions. Second operand has 14 states, 12 states have (on average 7.5) internal successors, (90), 12 states have internal predecessors, (90), 6 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 6 states have call predecessors, (13), 6 states have call successors, (13) [2024-11-28 04:05:31,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:05:31,601 INFO L93 Difference]: Finished difference Result 1018 states and 1575 transitions. [2024-11-28 04:05:31,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 04:05:31,602 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 7.5) internal successors, (90), 12 states have internal predecessors, (90), 6 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 6 states have call predecessors, (13), 6 states have call successors, (13) Word has length 146 [2024-11-28 04:05:31,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:05:31,604 INFO L225 Difference]: With dead ends: 1018 [2024-11-28 04:05:31,604 INFO L226 Difference]: Without dead ends: 1014 [2024-11-28 04:05:31,604 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 141 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=81, Invalid=381, Unknown=0, NotChecked=0, Total=462 [2024-11-28 04:05:31,605 INFO L435 NwaCegarLoop]: 54 mSDtfsCounter, 409 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 1749 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 414 SdHoareTripleChecker+Valid, 387 SdHoareTripleChecker+Invalid, 1779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1749 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:05:31,605 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [414 Valid, 387 Invalid, 1779 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1749 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-28 04:05:31,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1014 states. [2024-11-28 04:05:31,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1014 to 998. [2024-11-28 04:05:31,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 998 states, 858 states have (on average 1.6235431235431235) internal successors, (1393), 916 states have internal predecessors, (1393), 79 states have call successors, (79), 2 states have call predecessors, (79), 2 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-28 04:05:31,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 998 states to 998 states and 1551 transitions. [2024-11-28 04:05:31,679 INFO L78 Accepts]: Start accepts. Automaton has 998 states and 1551 transitions. Word has length 146 [2024-11-28 04:05:31,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:05:31,679 INFO L471 AbstractCegarLoop]: Abstraction has 998 states and 1551 transitions. [2024-11-28 04:05:31,679 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 7.5) internal successors, (90), 12 states have internal predecessors, (90), 6 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 6 states have call predecessors, (13), 6 states have call successors, (13) [2024-11-28 04:05:31,680 INFO L276 IsEmpty]: Start isEmpty. Operand 998 states and 1551 transitions. [2024-11-28 04:05:31,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-28 04:05:31,680 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:05:31,680 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:05:31,690 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Forceful destruction successful, exit code 0 [2024-11-28 04:05:31,881 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55,52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:05:31,881 INFO L396 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 04:05:31,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:05:31,881 INFO L85 PathProgramCache]: Analyzing trace with hash 718574575, now seen corresponding path program 1 times [2024-11-28 04:05:31,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:05:31,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26740982] [2024-11-28 04:05:31,881 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:05:31,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:05:31,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:05:31,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [187676092] [2024-11-28 04:05:31,899 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:05:31,899 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:05:31,899 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:05:31,901 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:05:31,904 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Waiting until timeout for monitored process [2024-11-28 04:05:31,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:05:31,984 INFO L256 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-28 04:05:31,986 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:05:33,319 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 24 proven. 48 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2024-11-28 04:05:33,320 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:05:33,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:05:33,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26740982] [2024-11-28 04:05:33,864 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:05:33,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [187676092] [2024-11-28 04:05:33,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [187676092] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:05:33,864 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:05:33,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2024-11-28 04:05:33,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841538073] [2024-11-28 04:05:33,865 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:05:33,865 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-28 04:05:33,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:05:33,866 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-28 04:05:33,866 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2024-11-28 04:05:33,866 INFO L87 Difference]: Start difference. First operand 998 states and 1551 transitions. Second operand has 16 states, 14 states have (on average 6.714285714285714) internal successors, (94), 14 states have internal predecessors, (94), 6 states have call successors, (13), 1 states have call predecessors, (13), 3 states have return successors, (13), 7 states have call predecessors, (13), 6 states have call successors, (13) [2024-11-28 04:05:37,529 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.81s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:05:41,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:05:41,189 INFO L93 Difference]: Finished difference Result 1016 states and 1567 transitions. [2024-11-28 04:05:41,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-28 04:05:41,189 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 6.714285714285714) internal successors, (94), 14 states have internal predecessors, (94), 6 states have call successors, (13), 1 states have call predecessors, (13), 3 states have return successors, (13), 7 states have call predecessors, (13), 6 states have call successors, (13) Word has length 147 [2024-11-28 04:05:41,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:05:41,192 INFO L225 Difference]: With dead ends: 1016 [2024-11-28 04:05:41,192 INFO L226 Difference]: Without dead ends: 1014 [2024-11-28 04:05:41,193 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=95, Invalid=457, Unknown=0, NotChecked=0, Total=552 [2024-11-28 04:05:41,193 INFO L435 NwaCegarLoop]: 51 mSDtfsCounter, 518 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 2282 mSolverCounterSat, 27 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 528 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 2310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 2282 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2024-11-28 04:05:41,193 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [528 Valid, 394 Invalid, 2310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 2282 Invalid, 1 Unknown, 0 Unchecked, 6.9s Time] [2024-11-28 04:05:41,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1014 states. [2024-11-28 04:05:41,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1014 to 998. [2024-11-28 04:05:41,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 998 states, 858 states have (on average 1.618881118881119) internal successors, (1389), 916 states have internal predecessors, (1389), 79 states have call successors, (79), 2 states have call predecessors, (79), 2 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-28 04:05:41,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 998 states to 998 states and 1547 transitions. [2024-11-28 04:05:41,272 INFO L78 Accepts]: Start accepts. Automaton has 998 states and 1547 transitions. Word has length 147 [2024-11-28 04:05:41,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:05:41,272 INFO L471 AbstractCegarLoop]: Abstraction has 998 states and 1547 transitions. [2024-11-28 04:05:41,272 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 6.714285714285714) internal successors, (94), 14 states have internal predecessors, (94), 6 states have call successors, (13), 1 states have call predecessors, (13), 3 states have return successors, (13), 7 states have call predecessors, (13), 6 states have call successors, (13) [2024-11-28 04:05:41,272 INFO L276 IsEmpty]: Start isEmpty. Operand 998 states and 1547 transitions. [2024-11-28 04:05:41,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-28 04:05:41,273 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:05:41,274 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:05:41,284 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Ended with exit code 0 [2024-11-28 04:05:41,474 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable56 [2024-11-28 04:05:41,474 INFO L396 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 04:05:41,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:05:41,475 INFO L85 PathProgramCache]: Analyzing trace with hash 1203766263, now seen corresponding path program 1 times [2024-11-28 04:05:41,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:05:41,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058784964] [2024-11-28 04:05:41,475 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:05:41,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:05:41,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:05:41,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1320479838] [2024-11-28 04:05:41,499 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:05:41,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:05:41,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:05:41,503 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:05:41,509 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Waiting until timeout for monitored process [2024-11-28 04:05:41,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:05:41,582 INFO L256 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-28 04:05:41,584 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:05:42,489 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 24 proven. 47 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2024-11-28 04:05:42,489 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:05:43,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:05:43,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058784964] [2024-11-28 04:05:43,121 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:05:43,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1320479838] [2024-11-28 04:05:43,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1320479838] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:05:43,121 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:05:43,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-11-28 04:05:43,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448496287] [2024-11-28 04:05:43,122 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:05:43,122 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 04:05:43,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:05:43,122 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 04:05:43,122 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2024-11-28 04:05:43,122 INFO L87 Difference]: Start difference. First operand 998 states and 1547 transitions. Second operand has 13 states, 12 states have (on average 8.5) internal successors, (102), 12 states have internal predecessors, (102), 5 states have call successors, (13), 1 states have call predecessors, (13), 3 states have return successors, (13), 6 states have call predecessors, (13), 5 states have call successors, (13) [2024-11-28 04:05:45,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:05:45,385 INFO L93 Difference]: Finished difference Result 1007 states and 1551 transitions. [2024-11-28 04:05:45,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 04:05:45,385 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 8.5) internal successors, (102), 12 states have internal predecessors, (102), 5 states have call successors, (13), 1 states have call predecessors, (13), 3 states have return successors, (13), 6 states have call predecessors, (13), 5 states have call successors, (13) Word has length 155 [2024-11-28 04:05:45,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:05:45,387 INFO L225 Difference]: With dead ends: 1007 [2024-11-28 04:05:45,387 INFO L226 Difference]: Without dead ends: 1005 [2024-11-28 04:05:45,387 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=70, Invalid=310, Unknown=0, NotChecked=0, Total=380 [2024-11-28 04:05:45,388 INFO L435 NwaCegarLoop]: 79 mSDtfsCounter, 225 mSDsluCounter, 573 mSDsCounter, 0 mSdLazyCounter, 1846 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 238 SdHoareTripleChecker+Valid, 652 SdHoareTripleChecker+Invalid, 1853 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1846 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:05:45,388 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [238 Valid, 652 Invalid, 1853 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1846 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-28 04:05:45,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1005 states. [2024-11-28 04:05:45,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1005 to 998. [2024-11-28 04:05:45,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 998 states, 858 states have (on average 1.6142191142191142) internal successors, (1385), 916 states have internal predecessors, (1385), 79 states have call successors, (79), 2 states have call predecessors, (79), 2 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-28 04:05:45,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 998 states to 998 states and 1543 transitions. [2024-11-28 04:05:45,460 INFO L78 Accepts]: Start accepts. Automaton has 998 states and 1543 transitions. Word has length 155 [2024-11-28 04:05:45,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:05:45,460 INFO L471 AbstractCegarLoop]: Abstraction has 998 states and 1543 transitions. [2024-11-28 04:05:45,460 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 8.5) internal successors, (102), 12 states have internal predecessors, (102), 5 states have call successors, (13), 1 states have call predecessors, (13), 3 states have return successors, (13), 6 states have call predecessors, (13), 5 states have call successors, (13) [2024-11-28 04:05:45,460 INFO L276 IsEmpty]: Start isEmpty. Operand 998 states and 1543 transitions. [2024-11-28 04:05:45,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-28 04:05:45,461 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:05:45,461 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:05:45,467 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Forceful destruction successful, exit code 0 [2024-11-28 04:05:45,661 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57,54 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:05:45,661 INFO L396 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 04:05:45,662 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:05:45,662 INFO L85 PathProgramCache]: Analyzing trace with hash 1598756135, now seen corresponding path program 1 times [2024-11-28 04:05:45,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:05:45,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426775412] [2024-11-28 04:05:45,662 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:05:45,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:05:45,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:05:45,813 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-11-28 04:05:45,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:05:45,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426775412] [2024-11-28 04:05:45,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426775412] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:05:45,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1470422755] [2024-11-28 04:05:45,814 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:05:45,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:05:45,814 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:05:45,816 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:05:45,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Waiting until timeout for monitored process [2024-11-28 04:05:45,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:05:45,903 INFO L256 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 04:05:45,905 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:05:46,341 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-11-28 04:05:46,342 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:05:46,622 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-11-28 04:05:46,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1470422755] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:05:46,622 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:05:46,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 15 [2024-11-28 04:05:46,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044454379] [2024-11-28 04:05:46,622 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:05:46,623 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-28 04:05:46,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:05:46,623 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-28 04:05:46,623 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2024-11-28 04:05:46,623 INFO L87 Difference]: Start difference. First operand 998 states and 1543 transitions. Second operand has 16 states, 15 states have (on average 18.0) internal successors, (270), 16 states have internal predecessors, (270), 14 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 14 states have call predecessors, (41), 14 states have call successors, (41) [2024-11-28 04:05:47,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:05:47,719 INFO L93 Difference]: Finished difference Result 1090 states and 1647 transitions. [2024-11-28 04:05:47,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 04:05:47,719 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 18.0) internal successors, (270), 16 states have internal predecessors, (270), 14 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 14 states have call predecessors, (41), 14 states have call successors, (41) Word has length 159 [2024-11-28 04:05:47,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:05:47,721 INFO L225 Difference]: With dead ends: 1090 [2024-11-28 04:05:47,721 INFO L226 Difference]: Without dead ends: 1089 [2024-11-28 04:05:47,722 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 330 GetRequests, 308 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=171, Invalid=381, Unknown=0, NotChecked=0, Total=552 [2024-11-28 04:05:47,722 INFO L435 NwaCegarLoop]: 83 mSDtfsCounter, 951 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 812 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 956 SdHoareTripleChecker+Valid, 430 SdHoareTripleChecker+Invalid, 894 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 812 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 04:05:47,722 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [956 Valid, 430 Invalid, 894 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 812 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 04:05:47,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1089 states. [2024-11-28 04:05:47,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1089 to 1086. [2024-11-28 04:05:47,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1086 states, 938 states have (on average 1.5660980810234542) internal successors, (1469), 996 states have internal predecessors, (1469), 87 states have call successors, (87), 2 states have call predecessors, (87), 2 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2024-11-28 04:05:47,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1086 states to 1086 states and 1643 transitions. [2024-11-28 04:05:47,793 INFO L78 Accepts]: Start accepts. Automaton has 1086 states and 1643 transitions. Word has length 159 [2024-11-28 04:05:47,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:05:47,793 INFO L471 AbstractCegarLoop]: Abstraction has 1086 states and 1643 transitions. [2024-11-28 04:05:47,793 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 18.0) internal successors, (270), 16 states have internal predecessors, (270), 14 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 14 states have call predecessors, (41), 14 states have call successors, (41) [2024-11-28 04:05:47,793 INFO L276 IsEmpty]: Start isEmpty. Operand 1086 states and 1643 transitions. [2024-11-28 04:05:47,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-28 04:05:47,794 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:05:47,794 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:05:47,804 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Forceful destruction successful, exit code 0 [2024-11-28 04:05:47,995 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58,55 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:05:47,995 INFO L396 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr48ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 04:05:47,995 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:05:47,995 INFO L85 PathProgramCache]: Analyzing trace with hash -1812130327, now seen corresponding path program 1 times [2024-11-28 04:05:47,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:05:47,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276333932] [2024-11-28 04:05:47,995 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:05:47,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:05:48,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:05:48,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1206731086] [2024-11-28 04:05:48,017 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:05:48,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:05:48,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:05:48,019 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:05:48,021 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Waiting until timeout for monitored process [2024-11-28 04:05:48,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:05:48,110 INFO L256 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 04:05:48,112 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:05:48,446 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-11-28 04:05:48,447 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:05:48,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:05:48,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276333932] [2024-11-28 04:05:48,447 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:05:48,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1206731086] [2024-11-28 04:05:48,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1206731086] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:05:48,447 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:05:48,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:05:48,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368716933] [2024-11-28 04:05:48,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:05:48,448 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:05:48,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:05:48,448 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:05:48,448 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:05:48,449 INFO L87 Difference]: Start difference. First operand 1086 states and 1643 transitions. Second operand has 5 states, 4 states have (on average 24.75) internal successors, (99), 5 states have internal predecessors, (99), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-28 04:05:48,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:05:48,915 INFO L93 Difference]: Finished difference Result 1090 states and 1643 transitions. [2024-11-28 04:05:48,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:05:48,923 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 24.75) internal successors, (99), 5 states have internal predecessors, (99), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) Word has length 163 [2024-11-28 04:05:48,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:05:48,927 INFO L225 Difference]: With dead ends: 1090 [2024-11-28 04:05:48,927 INFO L226 Difference]: Without dead ends: 1089 [2024-11-28 04:05:48,930 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:05:48,931 INFO L435 NwaCegarLoop]: 153 mSDtfsCounter, 28 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:05:48,931 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 341 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 04:05:48,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1089 states. [2024-11-28 04:05:49,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1089 to 1086. [2024-11-28 04:05:49,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1086 states, 938 states have (on average 1.5650319829424306) internal successors, (1468), 996 states have internal predecessors, (1468), 87 states have call successors, (87), 2 states have call predecessors, (87), 2 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2024-11-28 04:05:49,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1086 states to 1086 states and 1642 transitions. [2024-11-28 04:05:49,040 INFO L78 Accepts]: Start accepts. Automaton has 1086 states and 1642 transitions. Word has length 163 [2024-11-28 04:05:49,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:05:49,041 INFO L471 AbstractCegarLoop]: Abstraction has 1086 states and 1642 transitions. [2024-11-28 04:05:49,041 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 24.75) internal successors, (99), 5 states have internal predecessors, (99), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-28 04:05:49,041 INFO L276 IsEmpty]: Start isEmpty. Operand 1086 states and 1642 transitions. [2024-11-28 04:05:49,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-28 04:05:49,042 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:05:49,042 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:05:49,049 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Forceful destruction successful, exit code 0 [2024-11-28 04:05:49,242 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59,56 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:05:49,242 INFO L396 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 04:05:49,243 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:05:49,243 INFO L85 PathProgramCache]: Analyzing trace with hash -332960373, now seen corresponding path program 2 times [2024-11-28 04:05:49,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:05:49,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534450712] [2024-11-28 04:05:49,243 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:05:49,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:05:49,269 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:05:49,269 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:05:49,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [554598316] [2024-11-28 04:05:49,270 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:05:49,270 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:05:49,270 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:05:49,272 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:05:49,276 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Waiting until timeout for monitored process [2024-11-28 04:05:49,354 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:05:49,355 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:05:49,356 INFO L256 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-28 04:05:49,358 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:05:50,230 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 15 proven. 70 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-11-28 04:05:50,231 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:05:50,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:05:50,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534450712] [2024-11-28 04:05:50,401 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:05:50,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [554598316] [2024-11-28 04:05:50,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [554598316] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:05:50,401 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:05:50,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-28 04:05:50,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804781347] [2024-11-28 04:05:50,401 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:05:50,402 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 04:05:50,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:05:50,402 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 04:05:50,402 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:05:50,402 INFO L87 Difference]: Start difference. First operand 1086 states and 1642 transitions. Second operand has 12 states, 11 states have (on average 9.545454545454545) internal successors, (105), 11 states have internal predecessors, (105), 6 states have call successors, (14), 1 states have call predecessors, (14), 3 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-28 04:05:51,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:05:51,392 INFO L93 Difference]: Finished difference Result 1091 states and 1644 transitions. [2024-11-28 04:05:51,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 04:05:51,392 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 9.545454545454545) internal successors, (105), 11 states have internal predecessors, (105), 6 states have call successors, (14), 1 states have call predecessors, (14), 3 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) Word has length 163 [2024-11-28 04:05:51,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:05:51,395 INFO L225 Difference]: With dead ends: 1091 [2024-11-28 04:05:51,395 INFO L226 Difference]: Without dead ends: 1089 [2024-11-28 04:05:51,395 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=96, Invalid=284, Unknown=0, NotChecked=0, Total=380 [2024-11-28 04:05:51,395 INFO L435 NwaCegarLoop]: 79 mSDtfsCounter, 345 mSDsluCounter, 488 mSDsCounter, 0 mSdLazyCounter, 803 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 350 SdHoareTripleChecker+Valid, 567 SdHoareTripleChecker+Invalid, 829 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 803 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:05:51,396 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [350 Valid, 567 Invalid, 829 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 803 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 04:05:51,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1089 states. [2024-11-28 04:05:51,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1089 to 1086. [2024-11-28 04:05:51,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1086 states, 938 states have (on average 1.5628997867803838) internal successors, (1466), 996 states have internal predecessors, (1466), 87 states have call successors, (87), 2 states have call predecessors, (87), 2 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2024-11-28 04:05:51,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1086 states to 1086 states and 1640 transitions. [2024-11-28 04:05:51,500 INFO L78 Accepts]: Start accepts. Automaton has 1086 states and 1640 transitions. Word has length 163 [2024-11-28 04:05:51,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:05:51,501 INFO L471 AbstractCegarLoop]: Abstraction has 1086 states and 1640 transitions. [2024-11-28 04:05:51,501 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 9.545454545454545) internal successors, (105), 11 states have internal predecessors, (105), 6 states have call successors, (14), 1 states have call predecessors, (14), 3 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-28 04:05:51,501 INFO L276 IsEmpty]: Start isEmpty. Operand 1086 states and 1640 transitions. [2024-11-28 04:05:51,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-28 04:05:51,502 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:05:51,502 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:05:51,511 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Ended with exit code 0 [2024-11-28 04:05:51,702 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,57 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:05:51,703 INFO L396 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr49ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 04:05:51,703 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:05:51,703 INFO L85 PathProgramCache]: Analyzing trace with hash -341465115, now seen corresponding path program 1 times [2024-11-28 04:05:51,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:05:51,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684909698] [2024-11-28 04:05:51,703 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:05:51,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:05:51,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:05:51,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1356533429] [2024-11-28 04:05:51,722 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:05:51,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:05:51,722 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:05:51,726 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:05:51,728 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Waiting until timeout for monitored process [2024-11-28 04:05:51,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:05:51,812 INFO L256 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 04:05:51,814 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:05:52,134 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-11-28 04:05:52,134 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:05:52,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:05:52,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684909698] [2024-11-28 04:05:52,590 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:05:52,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1356533429] [2024-11-28 04:05:52,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1356533429] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:05:52,590 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:05:52,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2024-11-28 04:05:52,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602677102] [2024-11-28 04:05:52,590 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:05:52,590 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:05:52,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:05:52,591 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:05:52,591 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:05:52,591 INFO L87 Difference]: Start difference. First operand 1086 states and 1640 transitions. Second operand has 5 states, 4 states have (on average 25.0) internal successors, (100), 5 states have internal predecessors, (100), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-28 04:05:52,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:05:52,910 INFO L93 Difference]: Finished difference Result 1099 states and 1651 transitions. [2024-11-28 04:05:52,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:05:52,911 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 25.0) internal successors, (100), 5 states have internal predecessors, (100), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) Word has length 164 [2024-11-28 04:05:52,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:05:52,913 INFO L225 Difference]: With dead ends: 1099 [2024-11-28 04:05:52,913 INFO L226 Difference]: Without dead ends: 1098 [2024-11-28 04:05:52,913 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 228 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:05:52,913 INFO L435 NwaCegarLoop]: 128 mSDtfsCounter, 79 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 269 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:05:52,914 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 269 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:05:52,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1098 states. [2024-11-28 04:05:53,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1098 to 1093. [2024-11-28 04:05:53,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1093 states, 945 states have (on average 1.5587301587301587) internal successors, (1473), 1003 states have internal predecessors, (1473), 87 states have call successors, (87), 2 states have call predecessors, (87), 2 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2024-11-28 04:05:53,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1093 states to 1093 states and 1647 transitions. [2024-11-28 04:05:53,006 INFO L78 Accepts]: Start accepts. Automaton has 1093 states and 1647 transitions. Word has length 164 [2024-11-28 04:05:53,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:05:53,006 INFO L471 AbstractCegarLoop]: Abstraction has 1093 states and 1647 transitions. [2024-11-28 04:05:53,007 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 25.0) internal successors, (100), 5 states have internal predecessors, (100), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-28 04:05:53,007 INFO L276 IsEmpty]: Start isEmpty. Operand 1093 states and 1647 transitions. [2024-11-28 04:05:53,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-28 04:05:53,008 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:05:53,008 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:05:53,015 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Forceful destruction successful, exit code 0 [2024-11-28 04:05:53,208 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61,58 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:05:53,209 INFO L396 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 04:05:53,209 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:05:53,209 INFO L85 PathProgramCache]: Analyzing trace with hash 1366164346, now seen corresponding path program 1 times [2024-11-28 04:05:53,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:05:53,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895963037] [2024-11-28 04:05:53,209 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:05:53,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:05:53,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:05:53,399 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-11-28 04:05:53,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:05:53,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895963037] [2024-11-28 04:05:53,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895963037] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:05:53,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1284449716] [2024-11-28 04:05:53,399 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:05:53,399 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:05:53,399 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:05:53,404 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:05:53,406 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Waiting until timeout for monitored process [2024-11-28 04:05:53,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:05:53,492 INFO L256 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-28 04:05:53,495 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:05:53,979 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-11-28 04:05:53,979 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:05:54,284 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-11-28 04:05:54,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1284449716] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:05:54,284 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:05:54,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 18 [2024-11-28 04:05:54,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100796216] [2024-11-28 04:05:54,284 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:05:54,285 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-28 04:05:54,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:05:54,286 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-28 04:05:54,286 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2024-11-28 04:05:54,286 INFO L87 Difference]: Start difference. First operand 1093 states and 1647 transitions. Second operand has 19 states, 18 states have (on average 16.0) internal successors, (288), 19 states have internal predecessors, (288), 14 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 14 states have call predecessors, (41), 14 states have call successors, (41) [2024-11-28 04:05:57,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:05:57,511 INFO L93 Difference]: Finished difference Result 1744 states and 2319 transitions. [2024-11-28 04:05:57,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2024-11-28 04:05:57,511 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 16.0) internal successors, (288), 19 states have internal predecessors, (288), 14 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 14 states have call predecessors, (41), 14 states have call successors, (41) Word has length 165 [2024-11-28 04:05:57,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:05:57,516 INFO L225 Difference]: With dead ends: 1744 [2024-11-28 04:05:57,516 INFO L226 Difference]: Without dead ends: 1743 [2024-11-28 04:05:57,517 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 388 GetRequests, 318 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1633 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1211, Invalid=3901, Unknown=0, NotChecked=0, Total=5112 [2024-11-28 04:05:57,518 INFO L435 NwaCegarLoop]: 81 mSDtfsCounter, 3293 mSDsluCounter, 729 mSDsCounter, 0 mSdLazyCounter, 1851 mSolverCounterSat, 209 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3294 SdHoareTripleChecker+Valid, 810 SdHoareTripleChecker+Invalid, 2060 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 209 IncrementalHoareTripleChecker+Valid, 1851 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:05:57,518 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3294 Valid, 810 Invalid, 2060 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [209 Valid, 1851 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-28 04:05:57,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1743 states. [2024-11-28 04:05:57,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1743 to 1324. [2024-11-28 04:05:57,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1324 states, 1156 states have (on average 1.5813148788927336) internal successors, (1828), 1214 states have internal predecessors, (1828), 107 states have call successors, (107), 2 states have call predecessors, (107), 2 states have return successors, (107), 107 states have call predecessors, (107), 107 states have call successors, (107) [2024-11-28 04:05:57,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1324 states to 1324 states and 2042 transitions. [2024-11-28 04:05:57,656 INFO L78 Accepts]: Start accepts. Automaton has 1324 states and 2042 transitions. Word has length 165 [2024-11-28 04:05:57,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:05:57,656 INFO L471 AbstractCegarLoop]: Abstraction has 1324 states and 2042 transitions. [2024-11-28 04:05:57,656 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 16.0) internal successors, (288), 19 states have internal predecessors, (288), 14 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 14 states have call predecessors, (41), 14 states have call successors, (41) [2024-11-28 04:05:57,656 INFO L276 IsEmpty]: Start isEmpty. Operand 1324 states and 2042 transitions. [2024-11-28 04:05:57,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-11-28 04:05:57,657 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:05:57,657 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:05:57,667 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Forceful destruction successful, exit code 0 [2024-11-28 04:05:57,862 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62,59 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:05:57,862 INFO L396 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 04:05:57,862 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:05:57,863 INFO L85 PathProgramCache]: Analyzing trace with hash -1730455385, now seen corresponding path program 1 times [2024-11-28 04:05:57,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:05:57,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288510571] [2024-11-28 04:05:57,863 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:05:57,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:05:57,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:05:57,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1267224635] [2024-11-28 04:05:57,878 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:05:57,878 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:05:57,878 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:05:57,882 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:05:57,884 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Waiting until timeout for monitored process [2024-11-28 04:05:57,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:05:57,959 INFO L256 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 04:05:57,960 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:05:58,470 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-11-28 04:05:58,470 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:05:58,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:05:58,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288510571] [2024-11-28 04:05:58,470 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:05:58,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1267224635] [2024-11-28 04:05:58,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1267224635] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:05:58,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:05:58,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:05:58,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522563775] [2024-11-28 04:05:58,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:05:58,471 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:05:58,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:05:58,471 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:05:58,471 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:05:58,472 INFO L87 Difference]: Start difference. First operand 1324 states and 2042 transitions. Second operand has 6 states, 5 states have (on average 20.4) internal successors, (102), 6 states have internal predecessors, (102), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-28 04:05:58,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:05:58,876 INFO L93 Difference]: Finished difference Result 1328 states and 2042 transitions. [2024-11-28 04:05:58,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:05:58,876 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 20.4) internal successors, (102), 6 states have internal predecessors, (102), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) Word has length 166 [2024-11-28 04:05:58,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:05:58,879 INFO L225 Difference]: With dead ends: 1328 [2024-11-28 04:05:58,879 INFO L226 Difference]: Without dead ends: 1327 [2024-11-28 04:05:58,879 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:05:58,880 INFO L435 NwaCegarLoop]: 150 mSDtfsCounter, 18 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 315 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:05:58,880 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 352 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 315 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:05:58,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1327 states. [2024-11-28 04:05:59,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1327 to 1324. [2024-11-28 04:05:59,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1324 states, 1156 states have (on average 1.5804498269896194) internal successors, (1827), 1214 states have internal predecessors, (1827), 107 states have call successors, (107), 2 states have call predecessors, (107), 2 states have return successors, (107), 107 states have call predecessors, (107), 107 states have call successors, (107) [2024-11-28 04:05:59,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1324 states to 1324 states and 2041 transitions. [2024-11-28 04:05:59,019 INFO L78 Accepts]: Start accepts. Automaton has 1324 states and 2041 transitions. Word has length 166 [2024-11-28 04:05:59,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:05:59,019 INFO L471 AbstractCegarLoop]: Abstraction has 1324 states and 2041 transitions. [2024-11-28 04:05:59,019 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 20.4) internal successors, (102), 6 states have internal predecessors, (102), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-28 04:05:59,019 INFO L276 IsEmpty]: Start isEmpty. Operand 1324 states and 2041 transitions. [2024-11-28 04:05:59,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-28 04:05:59,020 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:05:59,020 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:05:59,029 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Forceful destruction successful, exit code 0 [2024-11-28 04:05:59,221 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 60 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable63 [2024-11-28 04:05:59,221 INFO L396 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr46ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 04:05:59,221 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:05:59,221 INFO L85 PathProgramCache]: Analyzing trace with hash -1377590278, now seen corresponding path program 1 times [2024-11-28 04:05:59,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:05:59,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556782599] [2024-11-28 04:05:59,222 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:05:59,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:05:59,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:05:59,395 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-11-28 04:05:59,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:05:59,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556782599] [2024-11-28 04:05:59,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [556782599] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:05:59,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2050402167] [2024-11-28 04:05:59,395 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:05:59,395 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:05:59,395 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:05:59,397 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:05:59,398 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Waiting until timeout for monitored process [2024-11-28 04:05:59,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:05:59,476 INFO L256 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 04:05:59,477 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:05:59,571 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-11-28 04:05:59,571 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:05:59,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2050402167] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:05:59,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:05:59,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9 [2024-11-28 04:05:59,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419788721] [2024-11-28 04:05:59,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:05:59,572 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:05:59,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:05:59,572 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:05:59,573 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:05:59,573 INFO L87 Difference]: Start difference. First operand 1324 states and 2041 transitions. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 5 states have internal predecessors, (103), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-28 04:05:59,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:05:59,866 INFO L93 Difference]: Finished difference Result 1677 states and 2544 transitions. [2024-11-28 04:05:59,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:05:59,866 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 5 states have internal predecessors, (103), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 167 [2024-11-28 04:05:59,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:05:59,868 INFO L225 Difference]: With dead ends: 1677 [2024-11-28 04:05:59,868 INFO L226 Difference]: Without dead ends: 851 [2024-11-28 04:05:59,870 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:05:59,870 INFO L435 NwaCegarLoop]: 178 mSDtfsCounter, 166 mSDsluCounter, 398 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 576 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:05:59,870 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 576 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:05:59,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 851 states. [2024-11-28 04:05:59,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 851 to 826. [2024-11-28 04:05:59,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 826 states, 699 states have (on average 1.4177396280400572) internal successors, (991), 756 states have internal predecessors, (991), 67 states have call successors, (67), 2 states have call predecessors, (67), 2 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67) [2024-11-28 04:05:59,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 826 states to 826 states and 1125 transitions. [2024-11-28 04:05:59,946 INFO L78 Accepts]: Start accepts. Automaton has 826 states and 1125 transitions. Word has length 167 [2024-11-28 04:05:59,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:05:59,946 INFO L471 AbstractCegarLoop]: Abstraction has 826 states and 1125 transitions. [2024-11-28 04:05:59,947 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 5 states have internal predecessors, (103), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-28 04:05:59,947 INFO L276 IsEmpty]: Start isEmpty. Operand 826 states and 1125 transitions. [2024-11-28 04:05:59,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-28 04:05:59,948 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:05:59,948 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:05:59,957 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Ended with exit code 0 [2024-11-28 04:06:00,152 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 61 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable64 [2024-11-28 04:06:00,152 INFO L396 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 04:06:00,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:06:00,153 INFO L85 PathProgramCache]: Analyzing trace with hash 292089675, now seen corresponding path program 1 times [2024-11-28 04:06:00,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:06:00,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631123339] [2024-11-28 04:06:00,153 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:06:00,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:06:00,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:06:00,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [304459543] [2024-11-28 04:06:00,182 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:06:00,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:06:00,183 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:06:00,185 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:06:00,187 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Waiting until timeout for monitored process [2024-11-28 04:06:00,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:06:00,280 INFO L256 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-28 04:06:00,283 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:06:00,589 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 7 proven. 52 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2024-11-28 04:06:00,590 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:06:00,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:06:00,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631123339] [2024-11-28 04:06:00,676 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:06:00,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [304459543] [2024-11-28 04:06:00,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [304459543] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:06:00,677 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:06:00,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-11-28 04:06:00,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901025869] [2024-11-28 04:06:00,677 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:06:00,677 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 04:06:00,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:06:00,677 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 04:06:00,678 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-11-28 04:06:00,678 INFO L87 Difference]: Start difference. First operand 826 states and 1125 transitions. Second operand has 10 states, 9 states have (on average 11.88888888888889) internal successors, (107), 9 states have internal predecessors, (107), 5 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2024-11-28 04:06:01,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:06:01,644 INFO L93 Difference]: Finished difference Result 930 states and 1150 transitions. [2024-11-28 04:06:01,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 04:06:01,645 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 11.88888888888889) internal successors, (107), 9 states have internal predecessors, (107), 5 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) Word has length 168 [2024-11-28 04:06:01,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:06:01,648 INFO L225 Difference]: With dead ends: 930 [2024-11-28 04:06:01,648 INFO L226 Difference]: Without dead ends: 928 [2024-11-28 04:06:01,648 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2024-11-28 04:06:01,649 INFO L435 NwaCegarLoop]: 146 mSDtfsCounter, 495 mSDsluCounter, 650 mSDsCounter, 0 mSdLazyCounter, 881 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 500 SdHoareTripleChecker+Valid, 796 SdHoareTripleChecker+Invalid, 910 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 881 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:06:01,649 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [500 Valid, 796 Invalid, 910 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 881 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 04:06:01,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 928 states. [2024-11-28 04:06:01,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 928 to 826. [2024-11-28 04:06:01,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 826 states, 699 states have (on average 1.413447782546495) internal successors, (988), 756 states have internal predecessors, (988), 67 states have call successors, (67), 2 states have call predecessors, (67), 2 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67) [2024-11-28 04:06:01,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 826 states to 826 states and 1122 transitions. [2024-11-28 04:06:01,743 INFO L78 Accepts]: Start accepts. Automaton has 826 states and 1122 transitions. Word has length 168 [2024-11-28 04:06:01,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:06:01,743 INFO L471 AbstractCegarLoop]: Abstraction has 826 states and 1122 transitions. [2024-11-28 04:06:01,744 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 11.88888888888889) internal successors, (107), 9 states have internal predecessors, (107), 5 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2024-11-28 04:06:01,744 INFO L276 IsEmpty]: Start isEmpty. Operand 826 states and 1122 transitions. [2024-11-28 04:06:01,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-28 04:06:01,745 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:06:01,745 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:06:01,754 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Forceful destruction successful, exit code 0 [2024-11-28 04:06:01,949 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 62 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable65 [2024-11-28 04:06:01,949 INFO L396 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr52ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 04:06:01,950 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:06:01,950 INFO L85 PathProgramCache]: Analyzing trace with hash -815279421, now seen corresponding path program 1 times [2024-11-28 04:06:01,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:06:01,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997043362] [2024-11-28 04:06:01,951 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:06:01,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:06:01,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:06:01,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1161567913] [2024-11-28 04:06:01,977 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:06:01,977 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:06:01,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:06:01,979 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:06:01,983 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Waiting until timeout for monitored process [2024-11-28 04:06:02,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:06:02,066 INFO L256 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-28 04:06:02,068 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:06:03,395 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 6 proven. 60 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-28 04:06:03,395 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:06:07,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:06:07,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997043362] [2024-11-28 04:06:07,724 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:06:07,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1161567913] [2024-11-28 04:06:07,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1161567913] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:06:07,725 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:06:07,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-11-28 04:06:07,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440354203] [2024-11-28 04:06:07,725 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:06:07,725 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 04:06:07,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:06:07,726 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 04:06:07,726 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=275, Unknown=1, NotChecked=0, Total=342 [2024-11-28 04:06:07,726 INFO L87 Difference]: Start difference. First operand 826 states and 1122 transitions. Second operand has 14 states, 12 states have (on average 8.916666666666666) internal successors, (107), 12 states have internal predecessors, (107), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-28 04:06:09,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:06:09,541 INFO L93 Difference]: Finished difference Result 941 states and 1293 transitions. [2024-11-28 04:06:09,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-28 04:06:09,542 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 8.916666666666666) internal successors, (107), 12 states have internal predecessors, (107), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) Word has length 168 [2024-11-28 04:06:09,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:06:09,544 INFO L225 Difference]: With dead ends: 941 [2024-11-28 04:06:09,544 INFO L226 Difference]: Without dead ends: 937 [2024-11-28 04:06:09,545 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=146, Invalid=555, Unknown=1, NotChecked=0, Total=702 [2024-11-28 04:06:09,545 INFO L435 NwaCegarLoop]: 78 mSDtfsCounter, 393 mSDsluCounter, 607 mSDsCounter, 0 mSdLazyCounter, 2247 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 398 SdHoareTripleChecker+Valid, 685 SdHoareTripleChecker+Invalid, 2275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 2247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:06:09,545 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [398 Valid, 685 Invalid, 2275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 2247 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-28 04:06:09,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 937 states. [2024-11-28 04:06:09,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 937 to 920. [2024-11-28 04:06:09,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 920 states, 785 states have (on average 1.435668789808917) internal successors, (1127), 842 states have internal predecessors, (1127), 75 states have call successors, (75), 2 states have call predecessors, (75), 2 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2024-11-28 04:06:09,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 920 states to 920 states and 1277 transitions. [2024-11-28 04:06:09,648 INFO L78 Accepts]: Start accepts. Automaton has 920 states and 1277 transitions. Word has length 168 [2024-11-28 04:06:09,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:06:09,649 INFO L471 AbstractCegarLoop]: Abstraction has 920 states and 1277 transitions. [2024-11-28 04:06:09,649 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 8.916666666666666) internal successors, (107), 12 states have internal predecessors, (107), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-28 04:06:09,649 INFO L276 IsEmpty]: Start isEmpty. Operand 920 states and 1277 transitions. [2024-11-28 04:06:09,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-28 04:06:09,650 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:06:09,650 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:06:09,659 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Ended with exit code 0 [2024-11-28 04:06:09,851 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 63 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable66 [2024-11-28 04:06:09,851 INFO L396 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 04:06:09,851 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:06:09,852 INFO L85 PathProgramCache]: Analyzing trace with hash 464845406, now seen corresponding path program 1 times [2024-11-28 04:06:09,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:06:09,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474705252] [2024-11-28 04:06:09,852 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:06:09,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:06:09,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:06:09,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [821271194] [2024-11-28 04:06:09,886 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:06:09,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:06:09,886 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:06:09,889 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:06:09,893 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Waiting until timeout for monitored process [2024-11-28 04:06:09,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:06:09,993 INFO L256 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-28 04:06:09,995 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:06:10,562 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 6 proven. 64 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-28 04:06:10,563 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:06:10,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:06:10,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474705252] [2024-11-28 04:06:10,766 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:06:10,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [821271194] [2024-11-28 04:06:10,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [821271194] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:06:10,766 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:06:10,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-28 04:06:10,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808632588] [2024-11-28 04:06:10,766 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:06:10,766 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 04:06:10,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:06:10,767 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 04:06:10,767 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:06:10,767 INFO L87 Difference]: Start difference. First operand 920 states and 1277 transitions. Second operand has 12 states, 10 states have (on average 10.8) internal successors, (108), 10 states have internal predecessors, (108), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-28 04:06:11,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:06:11,814 INFO L93 Difference]: Finished difference Result 927 states and 1281 transitions. [2024-11-28 04:06:11,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 04:06:11,814 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 10.8) internal successors, (108), 10 states have internal predecessors, (108), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) Word has length 169 [2024-11-28 04:06:11,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:06:11,816 INFO L225 Difference]: With dead ends: 927 [2024-11-28 04:06:11,816 INFO L226 Difference]: Without dead ends: 925 [2024-11-28 04:06:11,816 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=114, Invalid=392, Unknown=0, NotChecked=0, Total=506 [2024-11-28 04:06:11,816 INFO L435 NwaCegarLoop]: 75 mSDtfsCounter, 467 mSDsluCounter, 428 mSDsCounter, 0 mSdLazyCounter, 1103 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 472 SdHoareTripleChecker+Valid, 503 SdHoareTripleChecker+Invalid, 1142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:06:11,816 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [472 Valid, 503 Invalid, 1142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1103 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 04:06:11,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 925 states. [2024-11-28 04:06:11,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 925 to 922. [2024-11-28 04:06:11,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 922 states, 787 states have (on average 1.4332909783989836) internal successors, (1128), 844 states have internal predecessors, (1128), 75 states have call successors, (75), 2 states have call predecessors, (75), 2 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2024-11-28 04:06:11,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 922 states to 922 states and 1278 transitions. [2024-11-28 04:06:11,876 INFO L78 Accepts]: Start accepts. Automaton has 922 states and 1278 transitions. Word has length 169 [2024-11-28 04:06:11,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:06:11,876 INFO L471 AbstractCegarLoop]: Abstraction has 922 states and 1278 transitions. [2024-11-28 04:06:11,876 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 10.8) internal successors, (108), 10 states have internal predecessors, (108), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-28 04:06:11,876 INFO L276 IsEmpty]: Start isEmpty. Operand 922 states and 1278 transitions. [2024-11-28 04:06:11,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-28 04:06:11,877 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:06:11,878 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:06:11,887 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Forceful destruction successful, exit code 0 [2024-11-28 04:06:12,082 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 64 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable67 [2024-11-28 04:06:12,082 INFO L396 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr53ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 04:06:12,082 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:06:12,082 INFO L85 PathProgramCache]: Analyzing trace with hash 496141910, now seen corresponding path program 1 times [2024-11-28 04:06:12,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:06:12,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127466082] [2024-11-28 04:06:12,083 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:06:12,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:06:12,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:06:12,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1288032845] [2024-11-28 04:06:12,099 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:06:12,099 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:06:12,099 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:06:12,101 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:06:12,106 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Waiting until timeout for monitored process [2024-11-28 04:06:12,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:06:12,190 INFO L256 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-28 04:06:12,192 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:06:13,415 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 6 proven. 60 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-28 04:06:13,415 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:06:17,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:06:17,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127466082] [2024-11-28 04:06:17,962 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:06:17,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1288032845] [2024-11-28 04:06:17,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1288032845] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:06:17,962 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:06:17,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-11-28 04:06:17,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948617703] [2024-11-28 04:06:17,962 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:06:17,962 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 04:06:17,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:06:17,963 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 04:06:17,963 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=276, Unknown=1, NotChecked=0, Total=342 [2024-11-28 04:06:17,963 INFO L87 Difference]: Start difference. First operand 922 states and 1278 transitions. Second operand has 14 states, 12 states have (on average 9.0) internal successors, (108), 12 states have internal predecessors, (108), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-28 04:06:19,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:06:19,706 INFO L93 Difference]: Finished difference Result 945 states and 1288 transitions. [2024-11-28 04:06:19,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-28 04:06:19,706 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 9.0) internal successors, (108), 12 states have internal predecessors, (108), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) Word has length 169 [2024-11-28 04:06:19,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:06:19,708 INFO L225 Difference]: With dead ends: 945 [2024-11-28 04:06:19,708 INFO L226 Difference]: Without dead ends: 942 [2024-11-28 04:06:19,708 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=188, Invalid=681, Unknown=1, NotChecked=0, Total=870 [2024-11-28 04:06:19,708 INFO L435 NwaCegarLoop]: 63 mSDtfsCounter, 997 mSDsluCounter, 474 mSDsCounter, 0 mSdLazyCounter, 1973 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1002 SdHoareTripleChecker+Valid, 537 SdHoareTripleChecker+Invalid, 2054 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 1973 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:06:19,708 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1002 Valid, 537 Invalid, 2054 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 1973 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-28 04:06:19,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 942 states. [2024-11-28 04:06:19,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 942 to 923. [2024-11-28 04:06:19,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 923 states, 788 states have (on average 1.4276649746192893) internal successors, (1125), 845 states have internal predecessors, (1125), 75 states have call successors, (75), 2 states have call predecessors, (75), 2 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2024-11-28 04:06:19,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 923 states to 923 states and 1275 transitions. [2024-11-28 04:06:19,767 INFO L78 Accepts]: Start accepts. Automaton has 923 states and 1275 transitions. Word has length 169 [2024-11-28 04:06:19,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:06:19,767 INFO L471 AbstractCegarLoop]: Abstraction has 923 states and 1275 transitions. [2024-11-28 04:06:19,767 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 9.0) internal successors, (108), 12 states have internal predecessors, (108), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-28 04:06:19,767 INFO L276 IsEmpty]: Start isEmpty. Operand 923 states and 1275 transitions. [2024-11-28 04:06:19,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-11-28 04:06:19,768 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:06:19,768 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:06:19,780 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Forceful destruction successful, exit code 0 [2024-11-28 04:06:19,968 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 65 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable68 [2024-11-28 04:06:19,969 INFO L396 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr54ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 04:06:19,969 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:06:19,969 INFO L85 PathProgramCache]: Analyzing trace with hash -1799469787, now seen corresponding path program 1 times [2024-11-28 04:06:19,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:06:19,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809643475] [2024-11-28 04:06:19,969 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:06:19,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:06:19,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:06:19,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [465577351] [2024-11-28 04:06:19,985 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:06:19,985 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:06:19,985 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:06:19,987 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:06:19,991 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Waiting until timeout for monitored process [2024-11-28 04:06:20,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:06:20,081 INFO L256 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-28 04:06:20,083 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:06:21,522 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 6 proven. 60 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-28 04:06:21,522 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:06:27,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:06:27,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809643475] [2024-11-28 04:06:27,441 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:06:27,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [465577351] [2024-11-28 04:06:27,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [465577351] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:06:27,441 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:06:27,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-11-28 04:06:27,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032108235] [2024-11-28 04:06:27,441 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:06:27,442 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 04:06:27,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:06:27,442 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 04:06:27,442 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=233, Unknown=2, NotChecked=0, Total=306 [2024-11-28 04:06:27,442 INFO L87 Difference]: Start difference. First operand 923 states and 1275 transitions. Second operand has 14 states, 12 states have (on average 9.083333333333334) internal successors, (109), 12 states have internal predecessors, (109), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-28 04:06:29,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:06:29,392 INFO L93 Difference]: Finished difference Result 952 states and 1299 transitions. [2024-11-28 04:06:29,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 04:06:29,393 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 9.083333333333334) internal successors, (109), 12 states have internal predecessors, (109), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) Word has length 170 [2024-11-28 04:06:29,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:06:29,395 INFO L225 Difference]: With dead ends: 952 [2024-11-28 04:06:29,396 INFO L226 Difference]: Without dead ends: 949 [2024-11-28 04:06:29,396 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=167, Invalid=533, Unknown=2, NotChecked=0, Total=702 [2024-11-28 04:06:29,396 INFO L435 NwaCegarLoop]: 89 mSDtfsCounter, 323 mSDsluCounter, 431 mSDsCounter, 0 mSdLazyCounter, 1971 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 328 SdHoareTripleChecker+Valid, 520 SdHoareTripleChecker+Invalid, 1992 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1971 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:06:29,396 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [328 Valid, 520 Invalid, 1992 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1971 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-28 04:06:29,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 949 states. [2024-11-28 04:06:29,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 949 to 924. [2024-11-28 04:06:29,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 924 states, 789 states have (on average 1.4220532319391634) internal successors, (1122), 846 states have internal predecessors, (1122), 75 states have call successors, (75), 2 states have call predecessors, (75), 2 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2024-11-28 04:06:29,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 924 states to 924 states and 1272 transitions. [2024-11-28 04:06:29,502 INFO L78 Accepts]: Start accepts. Automaton has 924 states and 1272 transitions. Word has length 170 [2024-11-28 04:06:29,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:06:29,502 INFO L471 AbstractCegarLoop]: Abstraction has 924 states and 1272 transitions. [2024-11-28 04:06:29,502 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 9.083333333333334) internal successors, (109), 12 states have internal predecessors, (109), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-28 04:06:29,502 INFO L276 IsEmpty]: Start isEmpty. Operand 924 states and 1272 transitions. [2024-11-28 04:06:29,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-11-28 04:06:29,503 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:06:29,503 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:06:29,514 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Ended with exit code 0 [2024-11-28 04:06:29,707 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 66 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable69 [2024-11-28 04:06:29,707 INFO L396 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 04:06:29,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:06:29,708 INFO L85 PathProgramCache]: Analyzing trace with hash -1799521421, now seen corresponding path program 1 times [2024-11-28 04:06:29,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:06:29,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097845622] [2024-11-28 04:06:29,708 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:06:29,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:06:29,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:06:29,889 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 46 proven. 2 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-11-28 04:06:29,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:06:29,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097845622] [2024-11-28 04:06:29,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097845622] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:06:29,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [827237322] [2024-11-28 04:06:29,890 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:06:29,890 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:06:29,890 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:06:29,892 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:06:29,896 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Waiting until timeout for monitored process [2024-11-28 04:06:29,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:06:29,986 INFO L256 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 04:06:29,988 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:06:30,124 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-11-28 04:06:30,124 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:06:30,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [827237322] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:06:30,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:06:30,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 8 [2024-11-28 04:06:30,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864499213] [2024-11-28 04:06:30,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:06:30,125 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:06:30,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:06:30,126 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:06:30,126 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:06:30,126 INFO L87 Difference]: Start difference. First operand 924 states and 1272 transitions. Second operand has 8 states, 7 states have (on average 15.142857142857142) internal successors, (106), 8 states have internal predecessors, (106), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-28 04:06:30,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:06:30,676 INFO L93 Difference]: Finished difference Result 957 states and 1272 transitions. [2024-11-28 04:06:30,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 04:06:30,677 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 15.142857142857142) internal successors, (106), 8 states have internal predecessors, (106), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 170 [2024-11-28 04:06:30,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:06:30,679 INFO L225 Difference]: With dead ends: 957 [2024-11-28 04:06:30,679 INFO L226 Difference]: Without dead ends: 956 [2024-11-28 04:06:30,679 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-28 04:06:30,679 INFO L435 NwaCegarLoop]: 232 mSDtfsCounter, 346 mSDsluCounter, 875 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 1107 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:06:30,679 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [347 Valid, 1107 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:06:30,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 956 states. [2024-11-28 04:06:30,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 956 to 923. [2024-11-28 04:06:30,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 923 states, 789 states have (on average 1.4157160963244613) internal successors, (1117), 845 states have internal predecessors, (1117), 75 states have call successors, (75), 2 states have call predecessors, (75), 2 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2024-11-28 04:06:30,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 923 states to 923 states and 1267 transitions. [2024-11-28 04:06:30,745 INFO L78 Accepts]: Start accepts. Automaton has 923 states and 1267 transitions. Word has length 170 [2024-11-28 04:06:30,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:06:30,746 INFO L471 AbstractCegarLoop]: Abstraction has 923 states and 1267 transitions. [2024-11-28 04:06:30,746 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 15.142857142857142) internal successors, (106), 8 states have internal predecessors, (106), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-28 04:06:30,746 INFO L276 IsEmpty]: Start isEmpty. Operand 923 states and 1267 transitions. [2024-11-28 04:06:30,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-11-28 04:06:30,747 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:06:30,747 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:06:30,754 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Forceful destruction successful, exit code 0 [2024-11-28 04:06:30,951 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70,67 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:06:30,951 INFO L396 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr55ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 04:06:30,951 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:06:30,951 INFO L85 PathProgramCache]: Analyzing trace with hash 51011640, now seen corresponding path program 1 times [2024-11-28 04:06:30,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:06:30,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840282793] [2024-11-28 04:06:30,952 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:06:30,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:06:30,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:06:30,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [792959337] [2024-11-28 04:06:30,964 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:06:30,964 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:06:30,964 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:06:30,966 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:06:30,975 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Waiting until timeout for monitored process [2024-11-28 04:06:31,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:06:31,070 INFO L256 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-28 04:06:31,072 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:06:32,612 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 47 proven. 19 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-28 04:06:32,612 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:06:33,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:06:33,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840282793] [2024-11-28 04:06:33,012 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:06:33,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [792959337] [2024-11-28 04:06:33,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [792959337] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:06:33,012 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:06:33,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-11-28 04:06:33,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657351832] [2024-11-28 04:06:33,012 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:06:33,012 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 04:06:33,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:06:33,013 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 04:06:33,013 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2024-11-28 04:06:33,013 INFO L87 Difference]: Start difference. First operand 923 states and 1267 transitions. Second operand has 14 states, 12 states have (on average 9.166666666666666) internal successors, (110), 12 states have internal predecessors, (110), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-28 04:06:34,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:06:34,572 INFO L93 Difference]: Finished difference Result 953 states and 1284 transitions. [2024-11-28 04:06:34,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-28 04:06:34,572 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 9.166666666666666) internal successors, (110), 12 states have internal predecessors, (110), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) Word has length 171 [2024-11-28 04:06:34,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:06:34,574 INFO L225 Difference]: With dead ends: 953 [2024-11-28 04:06:34,574 INFO L226 Difference]: Without dead ends: 950 [2024-11-28 04:06:34,574 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=179, Invalid=577, Unknown=0, NotChecked=0, Total=756 [2024-11-28 04:06:34,574 INFO L435 NwaCegarLoop]: 89 mSDtfsCounter, 344 mSDsluCounter, 323 mSDsCounter, 0 mSdLazyCounter, 1801 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 349 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 1819 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1801 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:06:34,575 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [349 Valid, 412 Invalid, 1819 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1801 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-28 04:06:34,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 950 states. [2024-11-28 04:06:34,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 950 to 923. [2024-11-28 04:06:34,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 923 states, 789 states have (on average 1.4043092522179974) internal successors, (1108), 845 states have internal predecessors, (1108), 75 states have call successors, (75), 2 states have call predecessors, (75), 2 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2024-11-28 04:06:34,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 923 states to 923 states and 1258 transitions. [2024-11-28 04:06:34,644 INFO L78 Accepts]: Start accepts. Automaton has 923 states and 1258 transitions. Word has length 171 [2024-11-28 04:06:34,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:06:34,644 INFO L471 AbstractCegarLoop]: Abstraction has 923 states and 1258 transitions. [2024-11-28 04:06:34,644 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 9.166666666666666) internal successors, (110), 12 states have internal predecessors, (110), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-28 04:06:34,644 INFO L276 IsEmpty]: Start isEmpty. Operand 923 states and 1258 transitions. [2024-11-28 04:06:34,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-11-28 04:06:34,645 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:06:34,645 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:06:34,653 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Forceful destruction successful, exit code 0 [2024-11-28 04:06:34,845 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71,68 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:06:34,846 INFO L396 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr56ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 04:06:34,846 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:06:34,846 INFO L85 PathProgramCache]: Analyzing trace with hash 1581361031, now seen corresponding path program 1 times [2024-11-28 04:06:34,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:06:34,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715959114] [2024-11-28 04:06:34,846 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:06:34,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:06:34,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:06:34,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [355203598] [2024-11-28 04:06:34,861 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:06:34,861 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:06:34,861 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:06:34,864 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:06:34,866 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Waiting until timeout for monitored process [2024-11-28 04:06:34,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:06:34,945 INFO L256 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-28 04:06:34,947 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:06:36,558 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-11-28 04:06:36,558 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:06:37,644 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-11-28 04:06:37,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:06:37,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715959114] [2024-11-28 04:06:37,645 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:06:37,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [355203598] [2024-11-28 04:06:37,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [355203598] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:06:37,645 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:06:37,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2024-11-28 04:06:37,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549154439] [2024-11-28 04:06:37,645 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:06:37,645 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-28 04:06:37,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:06:37,646 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-28 04:06:37,646 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2024-11-28 04:06:37,646 INFO L87 Difference]: Start difference. First operand 923 states and 1258 transitions. Second operand has 18 states, 17 states have (on average 12.176470588235293) internal successors, (207), 18 states have internal predecessors, (207), 7 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 7 states have call predecessors, (24), 7 states have call successors, (24) [2024-11-28 04:06:44,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:06:44,457 INFO L93 Difference]: Finished difference Result 949 states and 1284 transitions. [2024-11-28 04:06:44,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-28 04:06:44,458 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 12.176470588235293) internal successors, (207), 18 states have internal predecessors, (207), 7 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 7 states have call predecessors, (24), 7 states have call successors, (24) Word has length 172 [2024-11-28 04:06:44,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:06:44,460 INFO L225 Difference]: With dead ends: 949 [2024-11-28 04:06:44,460 INFO L226 Difference]: Without dead ends: 940 [2024-11-28 04:06:44,460 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 364 GetRequests, 326 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 250 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=351, Invalid=1209, Unknown=0, NotChecked=0, Total=1560 [2024-11-28 04:06:44,460 INFO L435 NwaCegarLoop]: 59 mSDtfsCounter, 865 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 3270 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 870 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 3393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 3270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:06:44,461 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [870 Valid, 417 Invalid, 3393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 3270 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2024-11-28 04:06:44,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 940 states. [2024-11-28 04:06:44,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 940 to 935. [2024-11-28 04:06:44,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 935 states, 801 states have (on average 1.3982521847690388) internal successors, (1120), 857 states have internal predecessors, (1120), 75 states have call successors, (75), 2 states have call predecessors, (75), 2 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2024-11-28 04:06:44,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 935 states to 935 states and 1270 transitions. [2024-11-28 04:06:44,604 INFO L78 Accepts]: Start accepts. Automaton has 935 states and 1270 transitions. Word has length 172 [2024-11-28 04:06:44,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:06:44,604 INFO L471 AbstractCegarLoop]: Abstraction has 935 states and 1270 transitions. [2024-11-28 04:06:44,604 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 12.176470588235293) internal successors, (207), 18 states have internal predecessors, (207), 7 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 7 states have call predecessors, (24), 7 states have call successors, (24) [2024-11-28 04:06:44,604 INFO L276 IsEmpty]: Start isEmpty. Operand 935 states and 1270 transitions. [2024-11-28 04:06:44,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2024-11-28 04:06:44,605 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:06:44,606 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:06:44,615 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Ended with exit code 0 [2024-11-28 04:06:44,806 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72,69 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:06:44,807 INFO L396 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 04:06:44,807 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:06:44,807 INFO L85 PathProgramCache]: Analyzing trace with hash -250434167, now seen corresponding path program 1 times [2024-11-28 04:06:44,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:06:44,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948369214] [2024-11-28 04:06:44,807 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:06:44,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:06:44,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:06:44,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1269673528] [2024-11-28 04:06:44,832 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:06:44,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:06:44,833 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:06:44,834 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:06:44,839 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (70)] Waiting until timeout for monitored process [2024-11-28 04:06:44,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:06:44,933 INFO L256 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-28 04:06:44,936 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:06:46,909 INFO L134 CoverageAnalysis]: Checked inductivity of 316 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2024-11-28 04:06:46,909 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:06:48,338 INFO L134 CoverageAnalysis]: Checked inductivity of 316 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2024-11-28 04:06:48,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:06:48,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948369214] [2024-11-28 04:06:48,339 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:06:48,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1269673528] [2024-11-28 04:06:48,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1269673528] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:06:48,339 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:06:48,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 19 [2024-11-28 04:06:48,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832972115] [2024-11-28 04:06:48,339 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:06:48,340 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-28 04:06:48,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:06:48,340 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-28 04:06:48,340 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=321, Unknown=0, NotChecked=0, Total=380 [2024-11-28 04:06:48,340 INFO L87 Difference]: Start difference. First operand 935 states and 1270 transitions. Second operand has 20 states, 19 states have (on average 11.947368421052632) internal successors, (227), 20 states have internal predecessors, (227), 9 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 9 states have call predecessors, (28), 9 states have call successors, (28) [2024-11-28 04:06:54,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:06:54,286 INFO L93 Difference]: Finished difference Result 964 states and 1302 transitions. [2024-11-28 04:06:54,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-28 04:06:54,287 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 11.947368421052632) internal successors, (227), 20 states have internal predecessors, (227), 9 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 9 states have call predecessors, (28), 9 states have call successors, (28) Word has length 192 [2024-11-28 04:06:54,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:06:54,288 INFO L225 Difference]: With dead ends: 964 [2024-11-28 04:06:54,288 INFO L226 Difference]: Without dead ends: 963 [2024-11-28 04:06:54,288 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 399 GetRequests, 364 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 186 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=245, Invalid=1087, Unknown=0, NotChecked=0, Total=1332 [2024-11-28 04:06:54,289 INFO L435 NwaCegarLoop]: 79 mSDtfsCounter, 518 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 3016 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 521 SdHoareTripleChecker+Valid, 434 SdHoareTripleChecker+Invalid, 3081 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 3016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:06:54,289 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [521 Valid, 434 Invalid, 3081 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 3016 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2024-11-28 04:06:54,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 963 states. [2024-11-28 04:06:54,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 963 to 952. [2024-11-28 04:06:54,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 952 states, 816 states have (on average 1.3933823529411764) internal successors, (1137), 872 states have internal predecessors, (1137), 77 states have call successors, (77), 2 states have call predecessors, (77), 2 states have return successors, (77), 77 states have call predecessors, (77), 77 states have call successors, (77) [2024-11-28 04:06:54,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 952 states to 952 states and 1291 transitions. [2024-11-28 04:06:54,419 INFO L78 Accepts]: Start accepts. Automaton has 952 states and 1291 transitions. Word has length 192 [2024-11-28 04:06:54,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:06:54,420 INFO L471 AbstractCegarLoop]: Abstraction has 952 states and 1291 transitions. [2024-11-28 04:06:54,420 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 11.947368421052632) internal successors, (227), 20 states have internal predecessors, (227), 9 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 9 states have call predecessors, (28), 9 states have call successors, (28) [2024-11-28 04:06:54,420 INFO L276 IsEmpty]: Start isEmpty. Operand 952 states and 1291 transitions. [2024-11-28 04:06:54,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2024-11-28 04:06:54,421 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:06:54,421 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:06:54,430 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (70)] Ended with exit code 0 [2024-11-28 04:06:54,625 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73,70 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:06:54,625 INFO L396 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 04:06:54,626 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:06:54,626 INFO L85 PathProgramCache]: Analyzing trace with hash 826475518, now seen corresponding path program 1 times [2024-11-28 04:06:54,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:06:54,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127922266] [2024-11-28 04:06:54,626 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:06:54,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:06:54,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:06:54,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [126544682] [2024-11-28 04:06:54,650 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:06:54,650 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:06:54,650 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:06:54,655 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:06:54,658 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (71)] Waiting until timeout for monitored process [2024-11-28 04:06:54,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:06:54,753 INFO L256 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 38 conjuncts are in the unsatisfiable core [2024-11-28 04:06:54,755 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:06:57,584 INFO L134 CoverageAnalysis]: Checked inductivity of 318 backedges. 0 proven. 93 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2024-11-28 04:06:57,584 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:07:00,927 INFO L134 CoverageAnalysis]: Checked inductivity of 318 backedges. 0 proven. 93 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2024-11-28 04:07:00,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:07:00,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127922266] [2024-11-28 04:07:00,928 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:07:00,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [126544682] [2024-11-28 04:07:00,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [126544682] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:07:00,928 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:07:00,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24 [2024-11-28 04:07:00,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460562150] [2024-11-28 04:07:00,928 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:07:00,929 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-28 04:07:00,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:07:00,929 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-28 04:07:00,929 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=489, Unknown=0, NotChecked=0, Total=600 [2024-11-28 04:07:00,929 INFO L87 Difference]: Start difference. First operand 952 states and 1291 transitions. Second operand has 25 states, 24 states have (on average 9.791666666666666) internal successors, (235), 25 states have internal predecessors, (235), 11 states have call successors, (31), 1 states have call predecessors, (31), 2 states have return successors, (32), 10 states have call predecessors, (32), 11 states have call successors, (32) [2024-11-28 04:07:17,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:07:17,535 INFO L93 Difference]: Finished difference Result 999 states and 1347 transitions. [2024-11-28 04:07:17,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-11-28 04:07:17,536 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 9.791666666666666) internal successors, (235), 25 states have internal predecessors, (235), 11 states have call successors, (31), 1 states have call predecessors, (31), 2 states have return successors, (32), 10 states have call predecessors, (32), 11 states have call successors, (32) Word has length 193 [2024-11-28 04:07:17,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:07:17,537 INFO L225 Difference]: With dead ends: 999 [2024-11-28 04:07:17,537 INFO L226 Difference]: Without dead ends: 994 [2024-11-28 04:07:17,537 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 411 GetRequests, 361 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 545 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=559, Invalid=2093, Unknown=0, NotChecked=0, Total=2652 [2024-11-28 04:07:17,538 INFO L435 NwaCegarLoop]: 67 mSDtfsCounter, 808 mSDsluCounter, 433 mSDsCounter, 0 mSdLazyCounter, 3672 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 810 SdHoareTripleChecker+Valid, 500 SdHoareTripleChecker+Invalid, 3757 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 3672 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:07:17,538 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [810 Valid, 500 Invalid, 3757 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 3672 Invalid, 0 Unknown, 0 Unchecked, 14.1s Time] [2024-11-28 04:07:17,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 994 states. [2024-11-28 04:07:17,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 994 to 983. [2024-11-28 04:07:17,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 983 states, 845 states have (on average 1.383431952662722) internal successors, (1169), 901 states have internal predecessors, (1169), 79 states have call successors, (79), 2 states have call predecessors, (79), 2 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-28 04:07:17,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 983 states to 983 states and 1327 transitions. [2024-11-28 04:07:17,623 INFO L78 Accepts]: Start accepts. Automaton has 983 states and 1327 transitions. Word has length 193 [2024-11-28 04:07:17,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:07:17,624 INFO L471 AbstractCegarLoop]: Abstraction has 983 states and 1327 transitions. [2024-11-28 04:07:17,624 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 9.791666666666666) internal successors, (235), 25 states have internal predecessors, (235), 11 states have call successors, (31), 1 states have call predecessors, (31), 2 states have return successors, (32), 10 states have call predecessors, (32), 11 states have call successors, (32) [2024-11-28 04:07:17,624 INFO L276 IsEmpty]: Start isEmpty. Operand 983 states and 1327 transitions. [2024-11-28 04:07:17,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2024-11-28 04:07:17,625 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:07:17,625 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:07:17,635 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (71)] Forceful destruction successful, exit code 0 [2024-11-28 04:07:17,826 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74,71 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:07:17,826 INFO L396 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 04:07:17,826 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:07:17,827 INFO L85 PathProgramCache]: Analyzing trace with hash -706923243, now seen corresponding path program 1 times [2024-11-28 04:07:17,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:07:17,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995744700] [2024-11-28 04:07:17,827 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:07:17,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:07:17,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:07:17,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [679821548] [2024-11-28 04:07:17,849 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:07:17,850 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:07:17,850 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:07:17,852 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:07:17,854 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (72)] Waiting until timeout for monitored process [2024-11-28 04:07:17,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:07:17,958 INFO L256 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-28 04:07:17,961 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:07:19,545 INFO L134 CoverageAnalysis]: Checked inductivity of 362 backedges. 0 proven. 82 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2024-11-28 04:07:19,545 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:07:31,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:07:31,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995744700] [2024-11-28 04:07:31,816 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:07:31,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [679821548] [2024-11-28 04:07:31,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [679821548] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:07:31,816 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:07:31,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-11-28 04:07:31,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552917499] [2024-11-28 04:07:31,817 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:07:31,817 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 04:07:31,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:07:31,817 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 04:07:31,817 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=139, Unknown=3, NotChecked=0, Total=182 [2024-11-28 04:07:31,817 INFO L87 Difference]: Start difference. First operand 983 states and 1327 transitions. Second operand has 10 states, 9 states have (on average 13.333333333333334) internal successors, (120), 10 states have internal predecessors, (120), 5 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 5 states have call predecessors, (17), 5 states have call successors, (17) [2024-11-28 04:07:34,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:07:34,344 INFO L93 Difference]: Finished difference Result 1003 states and 1336 transitions. [2024-11-28 04:07:34,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 04:07:34,344 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 13.333333333333334) internal successors, (120), 10 states have internal predecessors, (120), 5 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 5 states have call predecessors, (17), 5 states have call successors, (17) Word has length 199 [2024-11-28 04:07:34,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:07:34,346 INFO L225 Difference]: With dead ends: 1003 [2024-11-28 04:07:34,346 INFO L226 Difference]: Without dead ends: 1002 [2024-11-28 04:07:34,347 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 12.6s TimeCoverageRelationStatistics Valid=98, Invalid=279, Unknown=3, NotChecked=0, Total=380 [2024-11-28 04:07:34,347 INFO L435 NwaCegarLoop]: 145 mSDtfsCounter, 148 mSDsluCounter, 685 mSDsCounter, 0 mSdLazyCounter, 1478 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 830 SdHoareTripleChecker+Invalid, 1489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:07:34,347 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 830 Invalid, 1489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1478 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-28 04:07:34,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1002 states. [2024-11-28 04:07:34,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1002 to 983. [2024-11-28 04:07:34,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 983 states, 845 states have (on average 1.378698224852071) internal successors, (1165), 901 states have internal predecessors, (1165), 79 states have call successors, (79), 2 states have call predecessors, (79), 2 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-28 04:07:34,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 983 states to 983 states and 1323 transitions. [2024-11-28 04:07:34,442 INFO L78 Accepts]: Start accepts. Automaton has 983 states and 1323 transitions. Word has length 199 [2024-11-28 04:07:34,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:07:34,442 INFO L471 AbstractCegarLoop]: Abstraction has 983 states and 1323 transitions. [2024-11-28 04:07:34,442 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 13.333333333333334) internal successors, (120), 10 states have internal predecessors, (120), 5 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 5 states have call predecessors, (17), 5 states have call successors, (17) [2024-11-28 04:07:34,442 INFO L276 IsEmpty]: Start isEmpty. Operand 983 states and 1323 transitions. [2024-11-28 04:07:34,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2024-11-28 04:07:34,443 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:07:34,444 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:07:34,455 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (72)] Ended with exit code 0 [2024-11-28 04:07:34,644 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75,72 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:07:34,644 INFO L396 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 04:07:34,644 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:07:34,644 INFO L85 PathProgramCache]: Analyzing trace with hash -439783945, now seen corresponding path program 1 times [2024-11-28 04:07:34,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:07:34,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246544967] [2024-11-28 04:07:34,645 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:07:34,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:07:34,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:07:34,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [176529018] [2024-11-28 04:07:34,665 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:07:34,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:07:34,666 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:07:34,669 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:07:34,670 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (73)] Waiting until timeout for monitored process [2024-11-28 04:07:34,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:07:34,787 INFO L256 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-28 04:07:34,790 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:07:37,308 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 108 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2024-11-28 04:07:37,308 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:07:41,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:07:41,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246544967] [2024-11-28 04:07:41,882 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:07:41,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [176529018] [2024-11-28 04:07:41,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [176529018] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:07:41,882 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:07:41,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-11-28 04:07:41,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406512966] [2024-11-28 04:07:41,883 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:07:41,883 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 04:07:41,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:07:41,883 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 04:07:41,883 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=246, Unknown=1, NotChecked=0, Total=306 [2024-11-28 04:07:41,884 INFO L87 Difference]: Start difference. First operand 983 states and 1323 transitions. Second operand has 14 states, 13 states have (on average 9.538461538461538) internal successors, (124), 13 states have internal predecessors, (124), 7 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 6 states have call predecessors, (17), 7 states have call successors, (17) [2024-11-28 04:07:44,044 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:07:47,001 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.53s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:07:49,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:07:49,844 INFO L93 Difference]: Finished difference Result 1000 states and 1334 transitions. [2024-11-28 04:07:49,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-28 04:07:49,844 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 9.538461538461538) internal successors, (124), 13 states have internal predecessors, (124), 7 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 6 states have call predecessors, (17), 7 states have call successors, (17) Word has length 200 [2024-11-28 04:07:49,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:07:49,845 INFO L225 Difference]: With dead ends: 1000 [2024-11-28 04:07:49,845 INFO L226 Difference]: Without dead ends: 999 [2024-11-28 04:07:49,846 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 228 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=141, Invalid=560, Unknown=1, NotChecked=0, Total=702 [2024-11-28 04:07:49,846 INFO L435 NwaCegarLoop]: 92 mSDtfsCounter, 484 mSDsluCounter, 593 mSDsCounter, 0 mSdLazyCounter, 1962 mSolverCounterSat, 37 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 489 SdHoareTripleChecker+Valid, 685 SdHoareTripleChecker+Invalid, 2001 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1962 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:07:49,846 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [489 Valid, 685 Invalid, 2001 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1962 Invalid, 2 Unknown, 0 Unchecked, 7.2s Time] [2024-11-28 04:07:49,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 999 states. [2024-11-28 04:07:49,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 999 to 983. [2024-11-28 04:07:49,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 983 states, 845 states have (on average 1.3763313609467456) internal successors, (1163), 901 states have internal predecessors, (1163), 79 states have call successors, (79), 2 states have call predecessors, (79), 2 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-28 04:07:49,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 983 states to 983 states and 1321 transitions. [2024-11-28 04:07:49,939 INFO L78 Accepts]: Start accepts. Automaton has 983 states and 1321 transitions. Word has length 200 [2024-11-28 04:07:49,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:07:49,939 INFO L471 AbstractCegarLoop]: Abstraction has 983 states and 1321 transitions. [2024-11-28 04:07:49,939 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 9.538461538461538) internal successors, (124), 13 states have internal predecessors, (124), 7 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 6 states have call predecessors, (17), 7 states have call successors, (17) [2024-11-28 04:07:49,939 INFO L276 IsEmpty]: Start isEmpty. Operand 983 states and 1321 transitions. [2024-11-28 04:07:49,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2024-11-28 04:07:49,940 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:07:49,941 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:07:49,950 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (73)] Ended with exit code 0 [2024-11-28 04:07:50,145 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76,73 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:07:50,145 INFO L396 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 04:07:50,145 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:07:50,146 INFO L85 PathProgramCache]: Analyzing trace with hash -748400297, now seen corresponding path program 1 times [2024-11-28 04:07:50,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:07:50,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600815071] [2024-11-28 04:07:50,146 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:07:50,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:07:50,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:07:50,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1921686573] [2024-11-28 04:07:50,167 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:07:50,167 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:07:50,167 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:07:50,169 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:07:50,171 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (74)] Waiting until timeout for monitored process [2024-11-28 04:07:50,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:07:50,285 INFO L256 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-28 04:07:50,288 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:07:52,442 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 24 proven. 107 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-28 04:07:52,443 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:07:52,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:07:52,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600815071] [2024-11-28 04:07:52,737 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:07:52,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1921686573] [2024-11-28 04:07:52,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1921686573] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:07:52,737 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:07:52,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2024-11-28 04:07:52,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130336140] [2024-11-28 04:07:52,737 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:07:52,738 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-28 04:07:52,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:07:52,738 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-28 04:07:52,738 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=349, Unknown=0, NotChecked=0, Total=420 [2024-11-28 04:07:52,738 INFO L87 Difference]: Start difference. First operand 983 states and 1321 transitions. Second operand has 16 states, 15 states have (on average 8.533333333333333) internal successors, (128), 14 states have internal predecessors, (128), 6 states have call successors, (17), 1 states have call predecessors, (17), 3 states have return successors, (17), 7 states have call predecessors, (17), 6 states have call successors, (17) [2024-11-28 04:07:55,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:07:55,397 INFO L93 Difference]: Finished difference Result 1007 states and 1340 transitions. [2024-11-28 04:07:55,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-28 04:07:55,398 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 8.533333333333333) internal successors, (128), 14 states have internal predecessors, (128), 6 states have call successors, (17), 1 states have call predecessors, (17), 3 states have return successors, (17), 7 states have call predecessors, (17), 6 states have call successors, (17) Word has length 201 [2024-11-28 04:07:55,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:07:55,400 INFO L225 Difference]: With dead ends: 1007 [2024-11-28 04:07:55,400 INFO L226 Difference]: Without dead ends: 1005 [2024-11-28 04:07:55,400 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 227 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=116, Invalid=586, Unknown=0, NotChecked=0, Total=702 [2024-11-28 04:07:55,401 INFO L435 NwaCegarLoop]: 101 mSDtfsCounter, 201 mSDsluCounter, 698 mSDsCounter, 0 mSdLazyCounter, 2419 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 799 SdHoareTripleChecker+Invalid, 2425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 2419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:07:55,401 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 799 Invalid, 2425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 2419 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-28 04:07:55,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1005 states. [2024-11-28 04:07:55,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1005 to 983. [2024-11-28 04:07:55,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 983 states, 845 states have (on average 1.3715976331360946) internal successors, (1159), 901 states have internal predecessors, (1159), 79 states have call successors, (79), 2 states have call predecessors, (79), 2 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-28 04:07:55,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 983 states to 983 states and 1317 transitions. [2024-11-28 04:07:55,536 INFO L78 Accepts]: Start accepts. Automaton has 983 states and 1317 transitions. Word has length 201 [2024-11-28 04:07:55,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:07:55,536 INFO L471 AbstractCegarLoop]: Abstraction has 983 states and 1317 transitions. [2024-11-28 04:07:55,536 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 8.533333333333333) internal successors, (128), 14 states have internal predecessors, (128), 6 states have call successors, (17), 1 states have call predecessors, (17), 3 states have return successors, (17), 7 states have call predecessors, (17), 6 states have call successors, (17) [2024-11-28 04:07:55,536 INFO L276 IsEmpty]: Start isEmpty. Operand 983 states and 1317 transitions. [2024-11-28 04:07:55,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2024-11-28 04:07:55,537 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:07:55,538 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:07:55,547 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (74)] Forceful destruction successful, exit code 0 [2024-11-28 04:07:55,742 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77,74 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:07:55,742 INFO L396 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 04:07:55,743 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:07:55,743 INFO L85 PathProgramCache]: Analyzing trace with hash -1953143399, now seen corresponding path program 1 times [2024-11-28 04:07:55,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:07:55,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671715776] [2024-11-28 04:07:55,743 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:07:55,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:07:55,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:07:55,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1301096862] [2024-11-28 04:07:55,766 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:07:55,767 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:07:55,767 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:07:55,769 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:07:55,771 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (75)] Waiting until timeout for monitored process [2024-11-28 04:07:55,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:07:55,868 INFO L256 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-28 04:07:55,871 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:08:00,017 INFO L134 CoverageAnalysis]: Checked inductivity of 370 backedges. 3 proven. 102 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2024-11-28 04:08:00,017 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:08:05,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:08:05,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671715776] [2024-11-28 04:08:05,853 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:08:05,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1301096862] [2024-11-28 04:08:05,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1301096862] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:08:05,853 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:08:05,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2024-11-28 04:08:05,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313331874] [2024-11-28 04:08:05,853 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:08:05,854 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-28 04:08:05,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:08:05,854 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-28 04:08:05,854 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=665, Unknown=1, NotChecked=0, Total=756 [2024-11-28 04:08:05,855 INFO L87 Difference]: Start difference. First operand 983 states and 1317 transitions. Second operand has 16 states, 15 states have (on average 8.466666666666667) internal successors, (127), 15 states have internal predecessors, (127), 6 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 6 states have call predecessors, (17), 6 states have call successors, (17) [2024-11-28 04:08:10,569 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.93s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:08:16,296 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:08:18,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:08:18,866 INFO L93 Difference]: Finished difference Result 998 states and 1328 transitions. [2024-11-28 04:08:18,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-28 04:08:18,867 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 8.466666666666667) internal successors, (127), 15 states have internal predecessors, (127), 6 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 6 states have call predecessors, (17), 6 states have call successors, (17) Word has length 203 [2024-11-28 04:08:18,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:08:18,868 INFO L225 Difference]: With dead ends: 998 [2024-11-28 04:08:18,868 INFO L226 Difference]: Without dead ends: 997 [2024-11-28 04:08:18,868 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 395 GetRequests, 357 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=233, Invalid=1326, Unknown=1, NotChecked=0, Total=1560 [2024-11-28 04:08:18,869 INFO L435 NwaCegarLoop]: 96 mSDtfsCounter, 537 mSDsluCounter, 489 mSDsCounter, 0 mSdLazyCounter, 2802 mSolverCounterSat, 45 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 542 SdHoareTripleChecker+Valid, 585 SdHoareTripleChecker+Invalid, 2848 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 2802 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:08:18,869 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [542 Valid, 585 Invalid, 2848 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 2802 Invalid, 1 Unknown, 0 Unchecked, 11.6s Time] [2024-11-28 04:08:18,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 997 states. [2024-11-28 04:08:19,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 997 to 983. [2024-11-28 04:08:19,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 983 states, 845 states have (on average 1.3692307692307693) internal successors, (1157), 901 states have internal predecessors, (1157), 79 states have call successors, (79), 2 states have call predecessors, (79), 2 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-28 04:08:19,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 983 states to 983 states and 1315 transitions. [2024-11-28 04:08:19,014 INFO L78 Accepts]: Start accepts. Automaton has 983 states and 1315 transitions. Word has length 203 [2024-11-28 04:08:19,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:08:19,014 INFO L471 AbstractCegarLoop]: Abstraction has 983 states and 1315 transitions. [2024-11-28 04:08:19,014 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 8.466666666666667) internal successors, (127), 15 states have internal predecessors, (127), 6 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 6 states have call predecessors, (17), 6 states have call successors, (17) [2024-11-28 04:08:19,014 INFO L276 IsEmpty]: Start isEmpty. Operand 983 states and 1315 transitions. [2024-11-28 04:08:19,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2024-11-28 04:08:19,016 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:08:19,016 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:08:19,026 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (75)] Ended with exit code 0 [2024-11-28 04:08:19,220 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 75 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable78 [2024-11-28 04:08:19,220 INFO L396 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 04:08:19,221 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:08:19,221 INFO L85 PathProgramCache]: Analyzing trace with hash -417903109, now seen corresponding path program 1 times [2024-11-28 04:08:19,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:08:19,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898143751] [2024-11-28 04:08:19,221 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:08:19,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:08:19,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:08:19,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1503122841] [2024-11-28 04:08:19,251 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:08:19,251 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:08:19,251 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:08:19,253 INFO L229 MonitoredProcess]: Starting monitored process 76 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:08:19,255 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (76)] Waiting until timeout for monitored process [2024-11-28 04:08:19,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:08:19,358 INFO L256 TraceCheckSpWp]: Trace formula consists of 340 conjuncts, 42 conjuncts are in the unsatisfiable core [2024-11-28 04:08:19,361 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:08:23,471 INFO L134 CoverageAnalysis]: Checked inductivity of 372 backedges. 21 proven. 125 refuted. 0 times theorem prover too weak. 226 trivial. 0 not checked. [2024-11-28 04:08:23,472 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:08:24,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:08:24,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898143751] [2024-11-28 04:08:24,481 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:08:24,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1503122841] [2024-11-28 04:08:24,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1503122841] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:08:24,482 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:08:24,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2024-11-28 04:08:24,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540065285] [2024-11-28 04:08:24,482 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:08:24,482 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-28 04:08:24,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:08:24,483 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-28 04:08:24,483 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=505, Unknown=0, NotChecked=0, Total=600 [2024-11-28 04:08:24,483 INFO L87 Difference]: Start difference. First operand 983 states and 1315 transitions. Second operand has 19 states, 18 states have (on average 7.277777777777778) internal successors, (131), 17 states have internal predecessors, (131), 7 states have call successors, (17), 1 states have call predecessors, (17), 3 states have return successors, (17), 7 states have call predecessors, (17), 7 states have call successors, (17) [2024-11-28 04:08:27,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:08:27,832 INFO L93 Difference]: Finished difference Result 1001 states and 1328 transitions. [2024-11-28 04:08:27,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-28 04:08:27,832 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 7.277777777777778) internal successors, (131), 17 states have internal predecessors, (131), 7 states have call successors, (17), 1 states have call predecessors, (17), 3 states have return successors, (17), 7 states have call predecessors, (17), 7 states have call successors, (17) Word has length 204 [2024-11-28 04:08:27,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:08:27,834 INFO L225 Difference]: With dead ends: 1001 [2024-11-28 04:08:27,834 INFO L226 Difference]: Without dead ends: 999 [2024-11-28 04:08:27,834 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 190 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=156, Invalid=900, Unknown=0, NotChecked=0, Total=1056 [2024-11-28 04:08:27,835 INFO L435 NwaCegarLoop]: 66 mSDtfsCounter, 192 mSDsluCounter, 453 mSDsCounter, 0 mSdLazyCounter, 2930 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 519 SdHoareTripleChecker+Invalid, 2937 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 2930 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:08:27,835 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [202 Valid, 519 Invalid, 2937 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 2930 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-28 04:08:27,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 999 states. [2024-11-28 04:08:27,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 999 to 983. [2024-11-28 04:08:27,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 983 states, 845 states have (on average 1.3644970414201183) internal successors, (1153), 901 states have internal predecessors, (1153), 79 states have call successors, (79), 2 states have call predecessors, (79), 2 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-28 04:08:27,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 983 states to 983 states and 1311 transitions. [2024-11-28 04:08:27,924 INFO L78 Accepts]: Start accepts. Automaton has 983 states and 1311 transitions. Word has length 204 [2024-11-28 04:08:27,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:08:27,925 INFO L471 AbstractCegarLoop]: Abstraction has 983 states and 1311 transitions. [2024-11-28 04:08:27,925 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 7.277777777777778) internal successors, (131), 17 states have internal predecessors, (131), 7 states have call successors, (17), 1 states have call predecessors, (17), 3 states have return successors, (17), 7 states have call predecessors, (17), 7 states have call successors, (17) [2024-11-28 04:08:27,925 INFO L276 IsEmpty]: Start isEmpty. Operand 983 states and 1311 transitions. [2024-11-28 04:08:27,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2024-11-28 04:08:27,925 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:08:27,925 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:08:27,931 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (76)] Forceful destruction successful, exit code 0 [2024-11-28 04:08:28,126 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79,76 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:08:28,126 INFO L396 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 04:08:28,126 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:08:28,126 INFO L85 PathProgramCache]: Analyzing trace with hash 1358788125, now seen corresponding path program 1 times [2024-11-28 04:08:28,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:08:28,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803629765] [2024-11-28 04:08:28,126 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:08:28,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:08:28,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:08:28,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [753728257] [2024-11-28 04:08:28,144 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:08:28,144 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:08:28,144 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:08:28,146 INFO L229 MonitoredProcess]: Starting monitored process 77 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:08:28,153 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (77)] Waiting until timeout for monitored process [2024-11-28 04:08:28,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:08:28,240 INFO L256 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 40 conjuncts are in the unsatisfiable core [2024-11-28 04:08:28,250 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:08:32,293 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 12 proven. 110 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2024-11-28 04:08:32,293 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:08:33,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:08:33,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803629765] [2024-11-28 04:08:33,991 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:08:33,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [753728257] [2024-11-28 04:08:33,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [753728257] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:08:33,991 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:08:33,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2024-11-28 04:08:33,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942539513] [2024-11-28 04:08:33,992 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:08:33,992 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-28 04:08:33,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:08:33,992 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-28 04:08:33,992 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=548, Unknown=0, NotChecked=0, Total=650 [2024-11-28 04:08:33,993 INFO L87 Difference]: Start difference. First operand 983 states and 1311 transitions. Second operand has 16 states, 15 states have (on average 8.733333333333333) internal successors, (131), 15 states have internal predecessors, (131), 6 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 6 states have call predecessors, (17), 6 states have call successors, (17) [2024-11-28 04:08:36,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:08:36,999 INFO L93 Difference]: Finished difference Result 996 states and 1320 transitions. [2024-11-28 04:08:37,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-28 04:08:37,000 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 8.733333333333333) internal successors, (131), 15 states have internal predecessors, (131), 6 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 6 states have call predecessors, (17), 6 states have call successors, (17) Word has length 207 [2024-11-28 04:08:37,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:08:37,002 INFO L225 Difference]: With dead ends: 996 [2024-11-28 04:08:37,002 INFO L226 Difference]: Without dead ends: 995 [2024-11-28 04:08:37,002 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 383 GetRequests, 352 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=197, Invalid=859, Unknown=0, NotChecked=0, Total=1056 [2024-11-28 04:08:37,002 INFO L435 NwaCegarLoop]: 100 mSDtfsCounter, 509 mSDsluCounter, 384 mSDsCounter, 0 mSdLazyCounter, 2601 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 515 SdHoareTripleChecker+Valid, 484 SdHoareTripleChecker+Invalid, 2639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 2601 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:08:37,003 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [515 Valid, 484 Invalid, 2639 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 2601 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-28 04:08:37,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 995 states. [2024-11-28 04:08:37,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 995 to 983. [2024-11-28 04:08:37,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 983 states, 845 states have (on average 1.362130177514793) internal successors, (1151), 901 states have internal predecessors, (1151), 79 states have call successors, (79), 2 states have call predecessors, (79), 2 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-28 04:08:37,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 983 states to 983 states and 1309 transitions. [2024-11-28 04:08:37,105 INFO L78 Accepts]: Start accepts. Automaton has 983 states and 1309 transitions. Word has length 207 [2024-11-28 04:08:37,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:08:37,105 INFO L471 AbstractCegarLoop]: Abstraction has 983 states and 1309 transitions. [2024-11-28 04:08:37,105 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 8.733333333333333) internal successors, (131), 15 states have internal predecessors, (131), 6 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 6 states have call predecessors, (17), 6 states have call successors, (17) [2024-11-28 04:08:37,105 INFO L276 IsEmpty]: Start isEmpty. Operand 983 states and 1309 transitions. [2024-11-28 04:08:37,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2024-11-28 04:08:37,106 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:08:37,106 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:08:37,115 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (77)] Forceful destruction successful, exit code 0 [2024-11-28 04:08:37,306 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80,77 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:08:37,307 INFO L396 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 04:08:37,307 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:08:37,307 INFO L85 PathProgramCache]: Analyzing trace with hash -409609727, now seen corresponding path program 1 times [2024-11-28 04:08:37,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:08:37,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060706217] [2024-11-28 04:08:37,307 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:08:37,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:08:37,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:08:37,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1732602712] [2024-11-28 04:08:37,324 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:08:37,324 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:08:37,324 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:08:37,328 INFO L229 MonitoredProcess]: Starting monitored process 78 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:08:37,329 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (78)] Waiting until timeout for monitored process [2024-11-28 04:08:37,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:08:37,440 INFO L256 TraceCheckSpWp]: Trace formula consists of 346 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-28 04:08:37,443 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:08:38,911 INFO L134 CoverageAnalysis]: Checked inductivity of 384 backedges. 41 proven. 87 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2024-11-28 04:08:38,911 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:08:39,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:08:39,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060706217] [2024-11-28 04:08:39,469 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:08:39,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1732602712] [2024-11-28 04:08:39,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1732602712] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:08:39,469 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:08:39,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-28 04:08:39,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241900338] [2024-11-28 04:08:39,469 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:08:39,469 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 04:08:39,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:08:39,470 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 04:08:39,470 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2024-11-28 04:08:39,470 INFO L87 Difference]: Start difference. First operand 983 states and 1309 transitions. Second operand has 12 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 7 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 6 states have call predecessors, (17), 7 states have call successors, (17) [2024-11-28 04:08:40,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:08:40,868 INFO L93 Difference]: Finished difference Result 1001 states and 1310 transitions. [2024-11-28 04:08:40,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 04:08:40,869 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 7 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 6 states have call predecessors, (17), 7 states have call successors, (17) Word has length 210 [2024-11-28 04:08:40,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:08:40,870 INFO L225 Difference]: With dead ends: 1001 [2024-11-28 04:08:40,870 INFO L226 Difference]: Without dead ends: 999 [2024-11-28 04:08:40,871 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 271 GetRequests, 251 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=123, Invalid=339, Unknown=0, NotChecked=0, Total=462 [2024-11-28 04:08:40,871 INFO L435 NwaCegarLoop]: 103 mSDtfsCounter, 364 mSDsluCounter, 547 mSDsCounter, 0 mSdLazyCounter, 1378 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 369 SdHoareTripleChecker+Valid, 650 SdHoareTripleChecker+Invalid, 1401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:08:40,871 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [369 Valid, 650 Invalid, 1401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1378 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-28 04:08:40,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 999 states. [2024-11-28 04:08:40,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 999 to 981. [2024-11-28 04:08:40,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 981 states, 843 states have (on average 1.3594306049822065) internal successors, (1146), 899 states have internal predecessors, (1146), 79 states have call successors, (79), 2 states have call predecessors, (79), 2 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-28 04:08:40,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 981 states to 981 states and 1304 transitions. [2024-11-28 04:08:40,959 INFO L78 Accepts]: Start accepts. Automaton has 981 states and 1304 transitions. Word has length 210 [2024-11-28 04:08:40,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:08:40,959 INFO L471 AbstractCegarLoop]: Abstraction has 981 states and 1304 transitions. [2024-11-28 04:08:40,959 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 7 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 6 states have call predecessors, (17), 7 states have call successors, (17) [2024-11-28 04:08:40,960 INFO L276 IsEmpty]: Start isEmpty. Operand 981 states and 1304 transitions. [2024-11-28 04:08:40,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2024-11-28 04:08:40,960 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:08:40,960 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:08:40,970 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (78)] Ended with exit code 0 [2024-11-28 04:08:41,161 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81,78 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:08:41,161 INFO L396 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 04:08:41,161 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:08:41,161 INFO L85 PathProgramCache]: Analyzing trace with hash 187000481, now seen corresponding path program 1 times [2024-11-28 04:08:41,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:08:41,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828458341] [2024-11-28 04:08:41,161 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:08:41,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:08:41,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:08:41,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1286903780] [2024-11-28 04:08:41,177 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:08:41,177 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:08:41,177 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:08:41,180 INFO L229 MonitoredProcess]: Starting monitored process 79 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:08:41,182 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (79)] Waiting until timeout for monitored process [2024-11-28 04:08:41,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:08:41,283 INFO L256 TraceCheckSpWp]: Trace formula consists of 347 conjuncts, 46 conjuncts are in the unsatisfiable core [2024-11-28 04:08:41,286 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:08:45,046 INFO L134 CoverageAnalysis]: Checked inductivity of 386 backedges. 48 proven. 112 refuted. 0 times theorem prover too weak. 226 trivial. 0 not checked. [2024-11-28 04:08:45,046 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:08:52,212 INFO L134 CoverageAnalysis]: Checked inductivity of 386 backedges. 48 proven. 112 refuted. 0 times theorem prover too weak. 226 trivial. 0 not checked. [2024-11-28 04:08:52,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:08:52,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828458341] [2024-11-28 04:08:52,212 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:08:52,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1286903780] [2024-11-28 04:08:52,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1286903780] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:08:52,212 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:08:52,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 15] total 27 [2024-11-28 04:08:52,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570518769] [2024-11-28 04:08:52,212 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:08:52,213 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-28 04:08:52,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:08:52,214 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-28 04:08:52,214 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=134, Invalid=622, Unknown=0, NotChecked=0, Total=756 [2024-11-28 04:08:52,214 INFO L87 Difference]: Start difference. First operand 981 states and 1304 transitions. Second operand has 28 states, 27 states have (on average 9.62962962962963) internal successors, (260), 28 states have internal predecessors, (260), 9 states have call successors, (30), 1 states have call predecessors, (30), 2 states have return successors, (30), 12 states have call predecessors, (30), 9 states have call successors, (30) [2024-11-28 04:09:21,501 WARN L286 SmtUtils]: Spent 27.72s on a formula simplification that was a NOOP. DAG size: 107 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 04:09:26,257 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 04:09:33,172 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 04:09:43,579 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 04:09:47,552 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.95s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 04:09:50,226 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 04:10:02,918 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 04:10:06,987 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 04:10:15,540 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 04:10:20,538 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 04:10:23,422 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 04:10:25,794 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.35s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 04:10:30,204 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 04:10:35,451 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.56s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 04:10:42,148 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 04:10:43,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:10:43,742 INFO L93 Difference]: Finished difference Result 998 states and 1315 transitions. [2024-11-28 04:10:43,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-28 04:10:43,743 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 9.62962962962963) internal successors, (260), 28 states have internal predecessors, (260), 9 states have call successors, (30), 1 states have call predecessors, (30), 2 states have return successors, (30), 12 states have call predecessors, (30), 9 states have call successors, (30) Word has length 211 [2024-11-28 04:10:43,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:10:43,745 INFO L225 Difference]: With dead ends: 998 [2024-11-28 04:10:43,745 INFO L226 Difference]: Without dead ends: 995 [2024-11-28 04:10:43,746 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 436 GetRequests, 394 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 317 ImplicationChecksByTransitivity, 37.8s TimeCoverageRelationStatistics Valid=441, Invalid=1451, Unknown=0, NotChecked=0, Total=1892 [2024-11-28 04:10:43,746 INFO L435 NwaCegarLoop]: 91 mSDtfsCounter, 592 mSDsluCounter, 572 mSDsCounter, 0 mSdLazyCounter, 4279 mSolverCounterSat, 106 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 75.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 596 SdHoareTripleChecker+Valid, 663 SdHoareTripleChecker+Invalid, 4391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 4279 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 76.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:10:43,746 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [596 Valid, 663 Invalid, 4391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 4279 Invalid, 6 Unknown, 0 Unchecked, 76.6s Time] [2024-11-28 04:10:43,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 995 states. [2024-11-28 04:10:43,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 995 to 981. [2024-11-28 04:10:43,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 981 states, 843 states have (on average 1.3475682087781733) internal successors, (1136), 899 states have internal predecessors, (1136), 79 states have call successors, (79), 2 states have call predecessors, (79), 2 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-28 04:10:43,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 981 states to 981 states and 1294 transitions. [2024-11-28 04:10:43,899 INFO L78 Accepts]: Start accepts. Automaton has 981 states and 1294 transitions. Word has length 211 [2024-11-28 04:10:43,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:10:43,899 INFO L471 AbstractCegarLoop]: Abstraction has 981 states and 1294 transitions. [2024-11-28 04:10:43,899 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 9.62962962962963) internal successors, (260), 28 states have internal predecessors, (260), 9 states have call successors, (30), 1 states have call predecessors, (30), 2 states have return successors, (30), 12 states have call predecessors, (30), 9 states have call successors, (30) [2024-11-28 04:10:43,899 INFO L276 IsEmpty]: Start isEmpty. Operand 981 states and 1294 transitions. [2024-11-28 04:10:43,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2024-11-28 04:10:43,900 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:10:43,900 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:10:43,907 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (79)] Ended with exit code 0 [2024-11-28 04:10:44,100 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82,79 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:10:44,100 INFO L396 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 04:10:44,100 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:10:44,101 INFO L85 PathProgramCache]: Analyzing trace with hash 1502047747, now seen corresponding path program 1 times [2024-11-28 04:10:44,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:10:44,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211203975] [2024-11-28 04:10:44,101 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:10:44,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:10:44,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:10:44,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [796083294] [2024-11-28 04:10:44,120 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:10:44,120 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:10:44,120 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:10:44,123 INFO L229 MonitoredProcess]: Starting monitored process 80 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:10:44,125 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (80)] Waiting until timeout for monitored process [2024-11-28 04:10:44,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:10:44,251 INFO L256 TraceCheckSpWp]: Trace formula consists of 348 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 04:10:44,254 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:10:45,036 INFO L134 CoverageAnalysis]: Checked inductivity of 388 backedges. 41 proven. 67 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2024-11-28 04:10:45,037 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:10:45,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:10:45,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211203975] [2024-11-28 04:10:45,694 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:10:45,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [796083294] [2024-11-28 04:10:45,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [796083294] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:10:45,694 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:10:45,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-28 04:10:45,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663852886] [2024-11-28 04:10:45,694 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:10:45,695 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 04:10:45,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:10:45,695 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 04:10:45,695 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:10:45,695 INFO L87 Difference]: Start difference. First operand 981 states and 1294 transitions. Second operand has 9 states, 8 states have (on average 16.625) internal successors, (133), 9 states have internal predecessors, (133), 4 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) [2024-11-28 04:10:47,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:10:47,781 INFO L93 Difference]: Finished difference Result 1122 states and 1477 transitions. [2024-11-28 04:10:47,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 04:10:47,782 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 16.625) internal successors, (133), 9 states have internal predecessors, (133), 4 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) Word has length 212 [2024-11-28 04:10:47,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:10:47,783 INFO L225 Difference]: With dead ends: 1122 [2024-11-28 04:10:47,783 INFO L226 Difference]: Without dead ends: 1119 [2024-11-28 04:10:47,784 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 217 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=120, Invalid=260, Unknown=0, NotChecked=0, Total=380 [2024-11-28 04:10:47,784 INFO L435 NwaCegarLoop]: 202 mSDtfsCounter, 154 mSDsluCounter, 650 mSDsCounter, 0 mSdLazyCounter, 1022 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 852 SdHoareTripleChecker+Invalid, 1034 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1022 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:10:47,784 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 852 Invalid, 1034 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1022 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-28 04:10:47,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1119 states. [2024-11-28 04:10:47,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1119 to 1081. [2024-11-28 04:10:47,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1081 states, 935 states have (on average 1.3828877005347593) internal successors, (1293), 991 states have internal predecessors, (1293), 87 states have call successors, (87), 2 states have call predecessors, (87), 2 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2024-11-28 04:10:47,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1081 states to 1081 states and 1467 transitions. [2024-11-28 04:10:47,931 INFO L78 Accepts]: Start accepts. Automaton has 1081 states and 1467 transitions. Word has length 212 [2024-11-28 04:10:47,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:10:47,932 INFO L471 AbstractCegarLoop]: Abstraction has 1081 states and 1467 transitions. [2024-11-28 04:10:47,932 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 16.625) internal successors, (133), 9 states have internal predecessors, (133), 4 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) [2024-11-28 04:10:47,932 INFO L276 IsEmpty]: Start isEmpty. Operand 1081 states and 1467 transitions. [2024-11-28 04:10:47,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2024-11-28 04:10:47,933 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:10:47,933 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:10:47,945 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (80)] Forceful destruction successful, exit code 0 [2024-11-28 04:10:48,133 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83,80 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:10:48,134 INFO L396 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 04:10:48,134 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:10:48,134 INFO L85 PathProgramCache]: Analyzing trace with hash -1759693019, now seen corresponding path program 1 times [2024-11-28 04:10:48,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:10:48,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600523590] [2024-11-28 04:10:48,134 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:10:48,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:10:48,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:10:48,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [215615041] [2024-11-28 04:10:48,159 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:10:48,159 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:10:48,159 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:10:48,161 INFO L229 MonitoredProcess]: Starting monitored process 81 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:10:48,162 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (81)] Waiting until timeout for monitored process [2024-11-28 04:10:48,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:10:48,278 INFO L256 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-28 04:10:48,280 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:10:50,785 INFO L134 CoverageAnalysis]: Checked inductivity of 394 backedges. 48 proven. 120 refuted. 0 times theorem prover too weak. 226 trivial. 0 not checked. [2024-11-28 04:10:50,785 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:10:51,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:10:51,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600523590] [2024-11-28 04:10:51,152 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:10:51,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [215615041] [2024-11-28 04:10:51,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [215615041] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:10:51,152 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:10:51,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2024-11-28 04:10:51,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112398083] [2024-11-28 04:10:51,152 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:10:51,153 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-28 04:10:51,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:10:51,153 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-28 04:10:51,153 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=256, Unknown=0, NotChecked=0, Total=306 [2024-11-28 04:10:51,153 INFO L87 Difference]: Start difference. First operand 1081 states and 1467 transitions. Second operand has 15 states, 14 states have (on average 9.928571428571429) internal successors, (139), 14 states have internal predecessors, (139), 5 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 7 states have call predecessors, (17), 5 states have call successors, (17) [2024-11-28 04:10:53,185 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:10:57,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:10:57,312 INFO L93 Difference]: Finished difference Result 1088 states and 1470 transitions. [2024-11-28 04:10:57,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-28 04:10:57,313 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 9.928571428571429) internal successors, (139), 14 states have internal predecessors, (139), 5 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 7 states have call predecessors, (17), 5 states have call successors, (17) Word has length 215 [2024-11-28 04:10:57,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:10:57,315 INFO L225 Difference]: With dead ends: 1088 [2024-11-28 04:10:57,315 INFO L226 Difference]: Without dead ends: 1087 [2024-11-28 04:10:57,315 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=82, Invalid=470, Unknown=0, NotChecked=0, Total=552 [2024-11-28 04:10:57,315 INFO L435 NwaCegarLoop]: 123 mSDtfsCounter, 174 mSDsluCounter, 608 mSDsCounter, 0 mSdLazyCounter, 2397 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 731 SdHoareTripleChecker+Invalid, 2406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 2397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:10:57,316 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 731 Invalid, 2406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 2397 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2024-11-28 04:10:57,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1087 states. [2024-11-28 04:10:57,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1087 to 1081. [2024-11-28 04:10:57,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1081 states, 935 states have (on average 1.3807486631016044) internal successors, (1291), 991 states have internal predecessors, (1291), 87 states have call successors, (87), 2 states have call predecessors, (87), 2 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2024-11-28 04:10:57,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1081 states to 1081 states and 1465 transitions. [2024-11-28 04:10:57,454 INFO L78 Accepts]: Start accepts. Automaton has 1081 states and 1465 transitions. Word has length 215 [2024-11-28 04:10:57,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:10:57,454 INFO L471 AbstractCegarLoop]: Abstraction has 1081 states and 1465 transitions. [2024-11-28 04:10:57,455 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 9.928571428571429) internal successors, (139), 14 states have internal predecessors, (139), 5 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 7 states have call predecessors, (17), 5 states have call successors, (17) [2024-11-28 04:10:57,455 INFO L276 IsEmpty]: Start isEmpty. Operand 1081 states and 1465 transitions. [2024-11-28 04:10:57,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2024-11-28 04:10:57,456 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:10:57,456 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:10:57,464 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (81)] Ended with exit code 0 [2024-11-28 04:10:57,656 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 81 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable84 [2024-11-28 04:10:57,657 INFO L396 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 04:10:57,657 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:10:57,657 INFO L85 PathProgramCache]: Analyzing trace with hash 1284091399, now seen corresponding path program 1 times [2024-11-28 04:10:57,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:10:57,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559497507] [2024-11-28 04:10:57,657 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:10:57,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:10:57,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:10:57,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1937851832] [2024-11-28 04:10:57,678 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:10:57,678 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:10:57,678 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:10:57,680 INFO L229 MonitoredProcess]: Starting monitored process 82 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:10:57,683 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (82)] Waiting until timeout for monitored process [2024-11-28 04:10:57,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:10:57,777 INFO L256 TraceCheckSpWp]: Trace formula consists of 352 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-28 04:10:57,779 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:10:58,645 INFO L134 CoverageAnalysis]: Checked inductivity of 396 backedges. 71 proven. 75 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2024-11-28 04:10:58,645 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:11:04,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:11:04,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559497507] [2024-11-28 04:11:04,569 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:11:04,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1937851832] [2024-11-28 04:11:04,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1937851832] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:11:04,569 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:11:04,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-28 04:11:04,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712478701] [2024-11-28 04:11:04,569 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:11:04,570 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 04:11:04,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:11:04,570 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 04:11:04,570 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=167, Unknown=1, NotChecked=0, Total=210 [2024-11-28 04:11:04,571 INFO L87 Difference]: Start difference. First operand 1081 states and 1465 transitions. Second operand has 12 states, 11 states have (on average 12.727272727272727) internal successors, (140), 12 states have internal predecessors, (140), 4 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 5 states have call predecessors, (17), 4 states have call successors, (17) [2024-11-28 04:11:08,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:11:08,385 INFO L93 Difference]: Finished difference Result 1123 states and 1467 transitions. [2024-11-28 04:11:08,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-28 04:11:08,386 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 12.727272727272727) internal successors, (140), 12 states have internal predecessors, (140), 4 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 5 states have call predecessors, (17), 4 states have call successors, (17) Word has length 216 [2024-11-28 04:11:08,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:11:08,388 INFO L225 Difference]: With dead ends: 1123 [2024-11-28 04:11:08,389 INFO L226 Difference]: Without dead ends: 1120 [2024-11-28 04:11:08,389 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 221 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=160, Invalid=489, Unknown=1, NotChecked=0, Total=650 [2024-11-28 04:11:08,390 INFO L435 NwaCegarLoop]: 154 mSDtfsCounter, 107 mSDsluCounter, 836 mSDsCounter, 0 mSdLazyCounter, 1798 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 990 SdHoareTripleChecker+Invalid, 1808 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1798 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:11:08,390 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 990 Invalid, 1808 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1798 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-11-28 04:11:08,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1120 states. [2024-11-28 04:11:08,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1120 to 1081. [2024-11-28 04:11:08,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1081 states, 935 states have (on average 1.3679144385026738) internal successors, (1279), 991 states have internal predecessors, (1279), 87 states have call successors, (87), 2 states have call predecessors, (87), 2 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2024-11-28 04:11:08,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1081 states to 1081 states and 1453 transitions. [2024-11-28 04:11:08,523 INFO L78 Accepts]: Start accepts. Automaton has 1081 states and 1453 transitions. Word has length 216 [2024-11-28 04:11:08,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:11:08,523 INFO L471 AbstractCegarLoop]: Abstraction has 1081 states and 1453 transitions. [2024-11-28 04:11:08,523 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 12.727272727272727) internal successors, (140), 12 states have internal predecessors, (140), 4 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 5 states have call predecessors, (17), 4 states have call successors, (17) [2024-11-28 04:11:08,523 INFO L276 IsEmpty]: Start isEmpty. Operand 1081 states and 1453 transitions. [2024-11-28 04:11:08,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2024-11-28 04:11:08,524 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:11:08,524 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:11:08,532 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (82)] Ended with exit code 0 [2024-11-28 04:11:08,725 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 82 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable85 [2024-11-28 04:11:08,725 INFO L396 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 04:11:08,725 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:11:08,725 INFO L85 PathProgramCache]: Analyzing trace with hash -840038501, now seen corresponding path program 3 times [2024-11-28 04:11:08,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:11:08,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187910626] [2024-11-28 04:11:08,726 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:11:08,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:11:08,768 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2024-11-28 04:11:08,768 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:11:08,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [588704273] [2024-11-28 04:11:08,769 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:11:08,769 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:11:08,769 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:11:08,774 INFO L229 MonitoredProcess]: Starting monitored process 83 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:11:08,775 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (83)] Waiting until timeout for monitored process [2024-11-28 04:11:08,854 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-28 04:11:08,854 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:11:08,855 INFO L256 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 04:11:08,858 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:11:09,610 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 373 trivial. 0 not checked. [2024-11-28 04:11:09,610 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:11:09,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:11:09,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187910626] [2024-11-28 04:11:09,610 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:11:09,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [588704273] [2024-11-28 04:11:09,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [588704273] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:11:09,611 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:11:09,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:11:09,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536280354] [2024-11-28 04:11:09,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:11:09,611 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:11:09,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:11:09,612 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:11:09,612 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:11:09,612 INFO L87 Difference]: Start difference. First operand 1081 states and 1453 transitions. Second operand has 7 states, 6 states have (on average 16.333333333333332) internal successors, (98), 7 states have internal predecessors, (98), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-28 04:11:10,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:11:10,851 INFO L93 Difference]: Finished difference Result 1103 states and 1453 transitions. [2024-11-28 04:11:10,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 04:11:10,851 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 16.333333333333332) internal successors, (98), 7 states have internal predecessors, (98), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 224 [2024-11-28 04:11:10,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:11:10,853 INFO L225 Difference]: With dead ends: 1103 [2024-11-28 04:11:10,853 INFO L226 Difference]: Without dead ends: 1102 [2024-11-28 04:11:10,854 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 218 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=64, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:11:10,854 INFO L435 NwaCegarLoop]: 179 mSDtfsCounter, 92 mSDsluCounter, 443 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 622 SdHoareTripleChecker+Invalid, 304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:11:10,854 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 622 Invalid, 304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 299 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 04:11:10,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1102 states. [2024-11-28 04:11:10,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1102 to 1080. [2024-11-28 04:11:10,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1080 states, 935 states have (on average 1.3593582887700535) internal successors, (1271), 990 states have internal predecessors, (1271), 87 states have call successors, (87), 2 states have call predecessors, (87), 2 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2024-11-28 04:11:10,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1080 states to 1080 states and 1445 transitions. [2024-11-28 04:11:10,975 INFO L78 Accepts]: Start accepts. Automaton has 1080 states and 1445 transitions. Word has length 224 [2024-11-28 04:11:10,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:11:10,976 INFO L471 AbstractCegarLoop]: Abstraction has 1080 states and 1445 transitions. [2024-11-28 04:11:10,976 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 16.333333333333332) internal successors, (98), 7 states have internal predecessors, (98), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-28 04:11:10,976 INFO L276 IsEmpty]: Start isEmpty. Operand 1080 states and 1445 transitions. [2024-11-28 04:11:10,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2024-11-28 04:11:10,977 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:11:10,977 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:11:10,984 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (83)] Forceful destruction successful, exit code 0 [2024-11-28 04:11:11,177 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 83 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable86 [2024-11-28 04:11:11,177 INFO L396 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr49ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 04:11:11,178 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:11:11,178 INFO L85 PathProgramCache]: Analyzing trace with hash 1118982101, now seen corresponding path program 2 times [2024-11-28 04:11:11,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:11:11,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201984637] [2024-11-28 04:11:11,178 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:11:11,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:11:11,199 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:11:11,199 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:11:11,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [119501148] [2024-11-28 04:11:11,200 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:11:11,200 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:11:11,200 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:11:11,204 INFO L229 MonitoredProcess]: Starting monitored process 84 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:11:11,209 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (84)] Waiting until timeout for monitored process [2024-11-28 04:11:11,318 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:11:11,318 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:11:11,320 INFO L256 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 04:11:11,322 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:11:11,857 INFO L134 CoverageAnalysis]: Checked inductivity of 451 backedges. 0 proven. 127 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2024-11-28 04:11:11,857 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:11:12,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:11:12,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201984637] [2024-11-28 04:11:12,399 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:11:12,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [119501148] [2024-11-28 04:11:12,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [119501148] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:11:12,399 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:11:12,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-11-28 04:11:12,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473869768] [2024-11-28 04:11:12,399 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:11:12,400 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:11:12,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:11:12,400 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:11:12,400 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=30, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:11:12,400 INFO L87 Difference]: Start difference. First operand 1080 states and 1445 transitions. Second operand has 6 states, 5 states have (on average 28.2) internal successors, (141), 6 states have internal predecessors, (141), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) [2024-11-28 04:11:12,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:11:12,886 INFO L93 Difference]: Finished difference Result 1082 states and 1445 transitions. [2024-11-28 04:11:12,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:11:12,886 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 28.2) internal successors, (141), 6 states have internal predecessors, (141), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) Word has length 225 [2024-11-28 04:11:12,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:11:12,888 INFO L225 Difference]: With dead ends: 1082 [2024-11-28 04:11:12,888 INFO L226 Difference]: Without dead ends: 1081 [2024-11-28 04:11:12,889 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 294 GetRequests, 288 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=30, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:11:12,889 INFO L435 NwaCegarLoop]: 125 mSDtfsCounter, 99 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:11:12,889 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 281 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:11:12,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1081 states. [2024-11-28 04:11:13,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1081 to 1080. [2024-11-28 04:11:13,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1080 states, 935 states have (on average 1.358288770053476) internal successors, (1270), 990 states have internal predecessors, (1270), 87 states have call successors, (87), 2 states have call predecessors, (87), 2 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2024-11-28 04:11:13,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1080 states to 1080 states and 1444 transitions. [2024-11-28 04:11:13,020 INFO L78 Accepts]: Start accepts. Automaton has 1080 states and 1444 transitions. Word has length 225 [2024-11-28 04:11:13,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:11:13,021 INFO L471 AbstractCegarLoop]: Abstraction has 1080 states and 1444 transitions. [2024-11-28 04:11:13,021 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 28.2) internal successors, (141), 6 states have internal predecessors, (141), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) [2024-11-28 04:11:13,021 INFO L276 IsEmpty]: Start isEmpty. Operand 1080 states and 1444 transitions. [2024-11-28 04:11:13,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2024-11-28 04:11:13,021 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:11:13,022 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:11:13,029 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (84)] Forceful destruction successful, exit code 0 [2024-11-28 04:11:13,222 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 84 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable87 [2024-11-28 04:11:13,222 INFO L396 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 04:11:13,223 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:11:13,223 INFO L85 PathProgramCache]: Analyzing trace with hash 1899180930, now seen corresponding path program 1 times [2024-11-28 04:11:13,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:11:13,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110778339] [2024-11-28 04:11:13,223 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:11:13,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:11:13,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:11:13,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [992272280] [2024-11-28 04:11:13,245 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:11:13,245 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:11:13,245 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:11:13,247 INFO L229 MonitoredProcess]: Starting monitored process 85 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:11:13,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (85)] Waiting until timeout for monitored process [2024-11-28 04:11:13,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:11:13,363 INFO L256 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 04:11:13,364 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:11:13,812 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 41 proven. 85 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2024-11-28 04:11:13,812 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:11:13,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:11:13,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110778339] [2024-11-28 04:11:13,958 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:11:13,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [992272280] [2024-11-28 04:11:13,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [992272280] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:11:13,958 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:11:13,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-11-28 04:11:13,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384289067] [2024-11-28 04:11:13,958 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:11:13,958 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:11:13,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:11:13,959 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:11:13,959 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:11:13,959 INFO L87 Difference]: Start difference. First operand 1080 states and 1444 transitions. Second operand has 7 states, 6 states have (on average 23.666666666666668) internal successors, (142), 7 states have internal predecessors, (142), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-28 04:11:14,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:11:14,784 INFO L93 Difference]: Finished difference Result 1101 states and 1453 transitions. [2024-11-28 04:11:14,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:11:14,785 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 23.666666666666668) internal successors, (142), 7 states have internal predecessors, (142), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) Word has length 226 [2024-11-28 04:11:14,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:11:14,786 INFO L225 Difference]: With dead ends: 1101 [2024-11-28 04:11:14,786 INFO L226 Difference]: Without dead ends: 1099 [2024-11-28 04:11:14,787 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 290 GetRequests, 283 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:11:14,787 INFO L435 NwaCegarLoop]: 190 mSDtfsCounter, 32 mSDsluCounter, 535 mSDsCounter, 0 mSdLazyCounter, 767 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 725 SdHoareTripleChecker+Invalid, 768 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 767 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:11:14,787 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 725 Invalid, 768 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 767 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 04:11:14,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1099 states. [2024-11-28 04:11:14,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1099 to 1082. [2024-11-28 04:11:14,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1082 states, 937 states have (on average 1.3543223052294557) internal successors, (1269), 992 states have internal predecessors, (1269), 87 states have call successors, (87), 2 states have call predecessors, (87), 2 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2024-11-28 04:11:14,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1082 states to 1082 states and 1443 transitions. [2024-11-28 04:11:14,899 INFO L78 Accepts]: Start accepts. Automaton has 1082 states and 1443 transitions. Word has length 226 [2024-11-28 04:11:14,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:11:14,900 INFO L471 AbstractCegarLoop]: Abstraction has 1082 states and 1443 transitions. [2024-11-28 04:11:14,900 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 23.666666666666668) internal successors, (142), 7 states have internal predecessors, (142), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-28 04:11:14,900 INFO L276 IsEmpty]: Start isEmpty. Operand 1082 states and 1443 transitions. [2024-11-28 04:11:14,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2024-11-28 04:11:14,901 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:11:14,901 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:11:14,908 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (85)] Forceful destruction successful, exit code 0 [2024-11-28 04:11:15,101 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 85 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable88 [2024-11-28 04:11:15,102 INFO L396 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 04:11:15,102 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:11:15,102 INFO L85 PathProgramCache]: Analyzing trace with hash -1254933148, now seen corresponding path program 1 times [2024-11-28 04:11:15,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:11:15,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127128333] [2024-11-28 04:11:15,102 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:11:15,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:11:15,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:11:15,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [41689872] [2024-11-28 04:11:15,124 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:11:15,124 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:11:15,124 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:11:15,128 INFO L229 MonitoredProcess]: Starting monitored process 86 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:11:15,129 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (86)] Waiting until timeout for monitored process [2024-11-28 04:11:15,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:11:15,256 INFO L256 TraceCheckSpWp]: Trace formula consists of 374 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-28 04:11:15,259 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:11:16,193 INFO L134 CoverageAnalysis]: Checked inductivity of 451 backedges. 0 proven. 127 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2024-11-28 04:11:16,193 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:11:17,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:11:17,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2127128333] [2024-11-28 04:11:17,339 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:11:17,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [41689872] [2024-11-28 04:11:17,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [41689872] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:11:17,339 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:11:17,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-11-28 04:11:17,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928891607] [2024-11-28 04:11:17,339 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:11:17,340 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 04:11:17,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:11:17,340 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 04:11:17,340 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:11:17,340 INFO L87 Difference]: Start difference. First operand 1082 states and 1443 transitions. Second operand has 10 states, 9 states have (on average 15.88888888888889) internal successors, (143), 10 states have internal predecessors, (143), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-28 04:11:18,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:11:18,615 INFO L93 Difference]: Finished difference Result 1200 states and 1578 transitions. [2024-11-28 04:11:18,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 04:11:18,616 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 15.88888888888889) internal successors, (143), 10 states have internal predecessors, (143), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) Word has length 227 [2024-11-28 04:11:18,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:11:18,618 INFO L225 Difference]: With dead ends: 1200 [2024-11-28 04:11:18,618 INFO L226 Difference]: Without dead ends: 1198 [2024-11-28 04:11:18,619 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 296 GetRequests, 280 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=100, Invalid=206, Unknown=0, NotChecked=0, Total=306 [2024-11-28 04:11:18,619 INFO L435 NwaCegarLoop]: 163 mSDtfsCounter, 162 mSDsluCounter, 579 mSDsCounter, 0 mSdLazyCounter, 1024 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 742 SdHoareTripleChecker+Invalid, 1033 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1024 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:11:18,619 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 742 Invalid, 1033 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1024 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 04:11:18,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1198 states. [2024-11-28 04:11:18,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1198 to 1178. [2024-11-28 04:11:18,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1178 states, 1025 states have (on average 1.342439024390244) internal successors, (1376), 1080 states have internal predecessors, (1376), 95 states have call successors, (95), 2 states have call predecessors, (95), 2 states have return successors, (95), 95 states have call predecessors, (95), 95 states have call successors, (95) [2024-11-28 04:11:18,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1178 states to 1178 states and 1566 transitions. [2024-11-28 04:11:18,756 INFO L78 Accepts]: Start accepts. Automaton has 1178 states and 1566 transitions. Word has length 227 [2024-11-28 04:11:18,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:11:18,757 INFO L471 AbstractCegarLoop]: Abstraction has 1178 states and 1566 transitions. [2024-11-28 04:11:18,757 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 15.88888888888889) internal successors, (143), 10 states have internal predecessors, (143), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-28 04:11:18,757 INFO L276 IsEmpty]: Start isEmpty. Operand 1178 states and 1566 transitions. [2024-11-28 04:11:18,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2024-11-28 04:11:18,758 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:11:18,758 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:11:18,766 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (86)] Forceful destruction successful, exit code 0 [2024-11-28 04:11:18,958 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 86 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable89 [2024-11-28 04:11:18,958 INFO L396 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr46ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 04:11:18,959 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:11:18,959 INFO L85 PathProgramCache]: Analyzing trace with hash -248221756, now seen corresponding path program 1 times [2024-11-28 04:11:18,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:11:18,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932058036] [2024-11-28 04:11:18,959 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:11:18,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:11:18,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:11:19,206 INFO L134 CoverageAnalysis]: Checked inductivity of 452 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 365 trivial. 0 not checked. [2024-11-28 04:11:19,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:11:19,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932058036] [2024-11-28 04:11:19,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932058036] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:11:19,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [225840276] [2024-11-28 04:11:19,206 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:11:19,206 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:11:19,206 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:11:19,208 INFO L229 MonitoredProcess]: Starting monitored process 87 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:11:19,209 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (87)] Waiting until timeout for monitored process [2024-11-28 04:11:19,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:11:19,312 INFO L256 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 04:11:19,313 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:11:19,560 INFO L134 CoverageAnalysis]: Checked inductivity of 452 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 365 trivial. 0 not checked. [2024-11-28 04:11:19,561 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:11:19,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [225840276] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:11:19,669 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:11:19,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2024-11-28 04:11:19,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519687910] [2024-11-28 04:11:19,669 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:11:19,670 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 04:11:19,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:11:19,670 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 04:11:19,670 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-11-28 04:11:19,670 INFO L87 Difference]: Start difference. First operand 1178 states and 1566 transitions. Second operand has 10 states, 9 states have (on average 23.0) internal successors, (207), 10 states have internal predecessors, (207), 5 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 5 states have call predecessors, (24), 5 states have call successors, (24) [2024-11-28 04:11:20,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:11:20,423 INFO L93 Difference]: Finished difference Result 1370 states and 1770 transitions. [2024-11-28 04:11:20,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 04:11:20,423 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 23.0) internal successors, (207), 10 states have internal predecessors, (207), 5 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 5 states have call predecessors, (24), 5 states have call successors, (24) Word has length 228 [2024-11-28 04:11:20,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:11:20,425 INFO L225 Difference]: With dead ends: 1370 [2024-11-28 04:11:20,425 INFO L226 Difference]: Without dead ends: 1369 [2024-11-28 04:11:20,426 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 227 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2024-11-28 04:11:20,426 INFO L435 NwaCegarLoop]: 152 mSDtfsCounter, 161 mSDsluCounter, 487 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 639 SdHoareTripleChecker+Invalid, 367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:11:20,426 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 639 Invalid, 367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 04:11:20,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1369 states. [2024-11-28 04:11:20,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1369 to 1280. [2024-11-28 04:11:20,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1280 states, 1119 states have (on average 1.3699731903485255) internal successors, (1533), 1174 states have internal predecessors, (1533), 103 states have call successors, (103), 2 states have call predecessors, (103), 2 states have return successors, (103), 103 states have call predecessors, (103), 103 states have call successors, (103) [2024-11-28 04:11:20,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1280 states to 1280 states and 1739 transitions. [2024-11-28 04:11:20,574 INFO L78 Accepts]: Start accepts. Automaton has 1280 states and 1739 transitions. Word has length 228 [2024-11-28 04:11:20,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:11:20,574 INFO L471 AbstractCegarLoop]: Abstraction has 1280 states and 1739 transitions. [2024-11-28 04:11:20,575 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 23.0) internal successors, (207), 10 states have internal predecessors, (207), 5 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 5 states have call predecessors, (24), 5 states have call successors, (24) [2024-11-28 04:11:20,575 INFO L276 IsEmpty]: Start isEmpty. Operand 1280 states and 1739 transitions. [2024-11-28 04:11:20,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2024-11-28 04:11:20,575 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:11:20,576 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:11:20,583 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (87)] Forceful destruction successful, exit code 0 [2024-11-28 04:11:20,776 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90,87 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:11:20,776 INFO L396 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr47ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 04:11:20,776 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:11:20,776 INFO L85 PathProgramCache]: Analyzing trace with hash 895060326, now seen corresponding path program 1 times [2024-11-28 04:11:20,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:11:20,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201437568] [2024-11-28 04:11:20,777 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:11:20,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:11:20,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:11:20,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1894804669] [2024-11-28 04:11:20,801 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:11:20,801 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:11:20,801 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:11:20,805 INFO L229 MonitoredProcess]: Starting monitored process 88 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:11:20,806 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (88)] Waiting until timeout for monitored process [2024-11-28 04:11:20,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:11:20,910 INFO L256 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-28 04:11:20,911 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:11:21,637 INFO L134 CoverageAnalysis]: Checked inductivity of 453 backedges. 41 proven. 88 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2024-11-28 04:11:21,637 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:11:21,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:11:21,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201437568] [2024-11-28 04:11:21,812 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:11:21,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1894804669] [2024-11-28 04:11:21,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1894804669] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:11:21,812 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:11:21,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-28 04:11:21,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625250106] [2024-11-28 04:11:21,812 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:11:21,813 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:11:21,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:11:21,813 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:11:21,813 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:11:21,813 INFO L87 Difference]: Start difference. First operand 1280 states and 1739 transitions. Second operand has 8 states, 7 states have (on average 20.714285714285715) internal successors, (145), 8 states have internal predecessors, (145), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-28 04:11:22,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:11:22,901 INFO L93 Difference]: Finished difference Result 1295 states and 1739 transitions. [2024-11-28 04:11:22,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 04:11:22,902 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 20.714285714285715) internal successors, (145), 8 states have internal predecessors, (145), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) Word has length 229 [2024-11-28 04:11:22,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:11:22,904 INFO L225 Difference]: With dead ends: 1295 [2024-11-28 04:11:22,904 INFO L226 Difference]: Without dead ends: 1294 [2024-11-28 04:11:22,905 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 296 GetRequests, 287 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:11:22,905 INFO L435 NwaCegarLoop]: 175 mSDtfsCounter, 33 mSDsluCounter, 517 mSDsCounter, 0 mSdLazyCounter, 874 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 692 SdHoareTripleChecker+Invalid, 874 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 874 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 04:11:22,905 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 692 Invalid, 874 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 874 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 04:11:22,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1294 states. [2024-11-28 04:11:23,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1294 to 1280. [2024-11-28 04:11:23,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1280 states, 1119 states have (on average 1.3681858802502234) internal successors, (1531), 1174 states have internal predecessors, (1531), 103 states have call successors, (103), 2 states have call predecessors, (103), 2 states have return successors, (103), 103 states have call predecessors, (103), 103 states have call successors, (103) [2024-11-28 04:11:23,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1280 states to 1280 states and 1737 transitions. [2024-11-28 04:11:23,053 INFO L78 Accepts]: Start accepts. Automaton has 1280 states and 1737 transitions. Word has length 229 [2024-11-28 04:11:23,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:11:23,054 INFO L471 AbstractCegarLoop]: Abstraction has 1280 states and 1737 transitions. [2024-11-28 04:11:23,054 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 20.714285714285715) internal successors, (145), 8 states have internal predecessors, (145), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-28 04:11:23,054 INFO L276 IsEmpty]: Start isEmpty. Operand 1280 states and 1737 transitions. [2024-11-28 04:11:23,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2024-11-28 04:11:23,055 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:11:23,055 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:11:23,063 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (88)] Ended with exit code 0 [2024-11-28 04:11:23,255 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91,88 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:11:23,255 INFO L396 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 04:11:23,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:11:23,256 INFO L85 PathProgramCache]: Analyzing trace with hash 1090527035, now seen corresponding path program 2 times [2024-11-28 04:11:23,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:11:23,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967653577] [2024-11-28 04:11:23,256 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:11:23,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:11:23,277 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:11:23,277 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:11:23,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2106404481] [2024-11-28 04:11:23,278 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:11:23,278 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:11:23,278 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:11:23,280 INFO L229 MonitoredProcess]: Starting monitored process 89 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:11:23,281 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (89)] Waiting until timeout for monitored process [2024-11-28 04:11:23,390 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:11:23,390 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:11:23,392 INFO L256 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 04:11:23,393 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:11:23,764 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 85 proven. 46 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2024-11-28 04:11:23,764 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:11:23,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:11:23,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967653577] [2024-11-28 04:11:23,843 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:11:23,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2106404481] [2024-11-28 04:11:23,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2106404481] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:11:23,844 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:11:23,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-11-28 04:11:23,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574146408] [2024-11-28 04:11:23,844 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:11:23,844 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:11:23,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:11:23,845 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:11:23,845 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:11:23,845 INFO L87 Difference]: Start difference. First operand 1280 states and 1737 transitions. Second operand has 7 states, 6 states have (on average 24.166666666666668) internal successors, (145), 7 states have internal predecessors, (145), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-28 04:11:24,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:11:24,565 INFO L93 Difference]: Finished difference Result 1308 states and 1737 transitions. [2024-11-28 04:11:24,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 04:11:24,566 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 24.166666666666668) internal successors, (145), 7 states have internal predecessors, (145), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 229 [2024-11-28 04:11:24,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:11:24,567 INFO L225 Difference]: With dead ends: 1308 [2024-11-28 04:11:24,567 INFO L226 Difference]: Without dead ends: 1306 [2024-11-28 04:11:24,568 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2024-11-28 04:11:24,568 INFO L435 NwaCegarLoop]: 278 mSDtfsCounter, 150 mSDsluCounter, 719 mSDsCounter, 0 mSdLazyCounter, 366 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 997 SdHoareTripleChecker+Invalid, 373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:11:24,568 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 997 Invalid, 373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 366 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 04:11:24,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1306 states. [2024-11-28 04:11:24,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1306 to 1278. [2024-11-28 04:11:24,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1278 states, 1119 states have (on average 1.357462019660411) internal successors, (1519), 1172 states have internal predecessors, (1519), 103 states have call successors, (103), 2 states have call predecessors, (103), 2 states have return successors, (103), 103 states have call predecessors, (103), 103 states have call successors, (103) [2024-11-28 04:11:24,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1278 states to 1278 states and 1725 transitions. [2024-11-28 04:11:24,746 INFO L78 Accepts]: Start accepts. Automaton has 1278 states and 1725 transitions. Word has length 229 [2024-11-28 04:11:24,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:11:24,746 INFO L471 AbstractCegarLoop]: Abstraction has 1278 states and 1725 transitions. [2024-11-28 04:11:24,747 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 24.166666666666668) internal successors, (145), 7 states have internal predecessors, (145), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-28 04:11:24,747 INFO L276 IsEmpty]: Start isEmpty. Operand 1278 states and 1725 transitions. [2024-11-28 04:11:24,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2024-11-28 04:11:24,748 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:11:24,749 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:11:24,760 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (89)] Ended with exit code 0 [2024-11-28 04:11:24,949 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92,89 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:11:24,949 INFO L396 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr52ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 04:11:24,950 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:11:24,950 INFO L85 PathProgramCache]: Analyzing trace with hash -16842061, now seen corresponding path program 2 times [2024-11-28 04:11:24,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:11:24,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138206351] [2024-11-28 04:11:24,950 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:11:24,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:11:24,976 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:11:24,977 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:11:24,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [877058333] [2024-11-28 04:11:24,978 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:11:24,978 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:11:24,978 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:11:24,980 INFO L229 MonitoredProcess]: Starting monitored process 90 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:11:24,983 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (90)] Waiting until timeout for monitored process [2024-11-28 04:11:25,094 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:11:25,094 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:11:25,095 INFO L256 TraceCheckSpWp]: Trace formula consists of 370 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-28 04:11:25,097 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:11:27,056 INFO L134 CoverageAnalysis]: Checked inductivity of 452 backedges. 0 proven. 143 refuted. 0 times theorem prover too weak. 309 trivial. 0 not checked. [2024-11-28 04:11:27,057 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:11:31,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:11:31,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138206351] [2024-11-28 04:11:31,274 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:11:31,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [877058333] [2024-11-28 04:11:31,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [877058333] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:11:31,274 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:11:31,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-11-28 04:11:31,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35656645] [2024-11-28 04:11:31,274 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:11:31,275 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 04:11:31,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:11:31,275 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 04:11:31,275 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=207, Unknown=1, NotChecked=0, Total=272 [2024-11-28 04:11:31,275 INFO L87 Difference]: Start difference. First operand 1278 states and 1725 transitions. Second operand has 13 states, 12 states have (on average 12.333333333333334) internal successors, (148), 13 states have internal predecessors, (148), 6 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 5 states have call predecessors, (18), 6 states have call successors, (18) [2024-11-28 04:11:32,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:11:32,940 INFO L93 Difference]: Finished difference Result 1415 states and 1905 transitions. [2024-11-28 04:11:32,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 04:11:32,940 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 12.333333333333334) internal successors, (148), 13 states have internal predecessors, (148), 6 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 5 states have call predecessors, (18), 6 states have call successors, (18) Word has length 229 [2024-11-28 04:11:32,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:11:32,942 INFO L225 Difference]: With dead ends: 1415 [2024-11-28 04:11:32,942 INFO L226 Difference]: Without dead ends: 1412 [2024-11-28 04:11:32,943 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 226 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=124, Invalid=381, Unknown=1, NotChecked=0, Total=506 [2024-11-28 04:11:32,943 INFO L435 NwaCegarLoop]: 156 mSDtfsCounter, 324 mSDsluCounter, 944 mSDsCounter, 0 mSdLazyCounter, 1799 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 337 SdHoareTripleChecker+Valid, 1100 SdHoareTripleChecker+Invalid, 1816 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1799 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:11:32,943 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [337 Valid, 1100 Invalid, 1816 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1799 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-28 04:11:32,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1412 states. [2024-11-28 04:11:33,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1412 to 1396. [2024-11-28 04:11:33,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1396 states, 1227 states have (on average 1.3553382233088835) internal successors, (1663), 1280 states have internal predecessors, (1663), 113 states have call successors, (113), 2 states have call predecessors, (113), 2 states have return successors, (113), 113 states have call predecessors, (113), 113 states have call successors, (113) [2024-11-28 04:11:33,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1396 states to 1396 states and 1889 transitions. [2024-11-28 04:11:33,093 INFO L78 Accepts]: Start accepts. Automaton has 1396 states and 1889 transitions. Word has length 229 [2024-11-28 04:11:33,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:11:33,093 INFO L471 AbstractCegarLoop]: Abstraction has 1396 states and 1889 transitions. [2024-11-28 04:11:33,093 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 12.333333333333334) internal successors, (148), 13 states have internal predecessors, (148), 6 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 5 states have call predecessors, (18), 6 states have call successors, (18) [2024-11-28 04:11:33,093 INFO L276 IsEmpty]: Start isEmpty. Operand 1396 states and 1889 transitions. [2024-11-28 04:11:33,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2024-11-28 04:11:33,094 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:11:33,094 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:11:33,101 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (90)] Ended with exit code 0 [2024-11-28 04:11:33,295 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93,90 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:11:33,295 INFO L396 AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr48ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 04:11:33,295 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:11:33,295 INFO L85 PathProgramCache]: Analyzing trace with hash 1977066502, now seen corresponding path program 1 times [2024-11-28 04:11:33,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:11:33,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541145367] [2024-11-28 04:11:33,295 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:11:33,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:11:33,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:11:33,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1509145856] [2024-11-28 04:11:33,321 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:11:33,321 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:11:33,321 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:11:33,323 INFO L229 MonitoredProcess]: Starting monitored process 91 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:11:33,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (91)] Waiting until timeout for monitored process [2024-11-28 04:11:33,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:11:33,449 INFO L256 TraceCheckSpWp]: Trace formula consists of 383 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 04:11:33,452 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:11:34,062 INFO L134 CoverageAnalysis]: Checked inductivity of 454 backedges. 41 proven. 89 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2024-11-28 04:11:34,062 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:11:34,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:11:34,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541145367] [2024-11-28 04:11:34,266 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:11:34,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1509145856] [2024-11-28 04:11:34,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1509145856] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:11:34,266 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:11:34,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-28 04:11:34,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744722266] [2024-11-28 04:11:34,266 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:11:34,267 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:11:34,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:11:34,267 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:11:34,267 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:11:34,268 INFO L87 Difference]: Start difference. First operand 1396 states and 1889 transitions. Second operand has 8 states, 7 states have (on average 20.857142857142858) internal successors, (146), 8 states have internal predecessors, (146), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) [2024-11-28 04:11:35,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:11:35,036 INFO L93 Difference]: Finished difference Result 1480 states and 1914 transitions. [2024-11-28 04:11:35,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 04:11:35,037 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 20.857142857142858) internal successors, (146), 8 states have internal predecessors, (146), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) Word has length 230 [2024-11-28 04:11:35,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:11:35,039 INFO L225 Difference]: With dead ends: 1480 [2024-11-28 04:11:35,040 INFO L226 Difference]: Without dead ends: 1479 [2024-11-28 04:11:35,040 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 290 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:11:35,041 INFO L435 NwaCegarLoop]: 126 mSDtfsCounter, 266 mSDsluCounter, 404 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 271 SdHoareTripleChecker+Valid, 530 SdHoareTripleChecker+Invalid, 397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:11:35,041 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [271 Valid, 530 Invalid, 397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 387 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 04:11:35,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1479 states. [2024-11-28 04:11:35,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1479 to 1396. [2024-11-28 04:11:35,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1396 states, 1227 states have (on average 1.354523227383863) internal successors, (1662), 1280 states have internal predecessors, (1662), 113 states have call successors, (113), 2 states have call predecessors, (113), 2 states have return successors, (113), 113 states have call predecessors, (113), 113 states have call successors, (113) [2024-11-28 04:11:35,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1396 states to 1396 states and 1888 transitions. [2024-11-28 04:11:35,235 INFO L78 Accepts]: Start accepts. Automaton has 1396 states and 1888 transitions. Word has length 230 [2024-11-28 04:11:35,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:11:35,235 INFO L471 AbstractCegarLoop]: Abstraction has 1396 states and 1888 transitions. [2024-11-28 04:11:35,235 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 20.857142857142858) internal successors, (146), 8 states have internal predecessors, (146), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) [2024-11-28 04:11:35,235 INFO L276 IsEmpty]: Start isEmpty. Operand 1396 states and 1888 transitions. [2024-11-28 04:11:35,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2024-11-28 04:11:35,236 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:11:35,236 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:11:35,243 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (91)] Ended with exit code 0 [2024-11-28 04:11:35,436 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 91 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable94 [2024-11-28 04:11:35,436 INFO L396 AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr53ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 04:11:35,437 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:11:35,437 INFO L85 PathProgramCache]: Analyzing trace with hash -522103706, now seen corresponding path program 2 times [2024-11-28 04:11:35,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:11:35,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720658243] [2024-11-28 04:11:35,437 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:11:35,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:11:35,453 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:11:35,453 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:11:35,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1645857798] [2024-11-28 04:11:35,454 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:11:35,454 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:11:35,454 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:11:35,456 INFO L229 MonitoredProcess]: Starting monitored process 92 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:11:35,457 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (92)] Waiting until timeout for monitored process [2024-11-28 04:11:35,563 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:11:35,563 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:11:35,565 INFO L256 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-28 04:11:35,566 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:11:37,576 INFO L134 CoverageAnalysis]: Checked inductivity of 452 backedges. 0 proven. 143 refuted. 0 times theorem prover too weak. 309 trivial. 0 not checked. [2024-11-28 04:11:37,576 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:11:46,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:11:46,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720658243] [2024-11-28 04:11:46,323 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:11:46,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1645857798] [2024-11-28 04:11:46,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1645857798] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:11:46,323 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:11:46,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-11-28 04:11:46,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220144527] [2024-11-28 04:11:46,323 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:11:46,323 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 04:11:46,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:11:46,324 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 04:11:46,324 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=206, Unknown=2, NotChecked=0, Total=272 [2024-11-28 04:11:46,324 INFO L87 Difference]: Start difference. First operand 1396 states and 1888 transitions. Second operand has 13 states, 12 states have (on average 12.416666666666666) internal successors, (149), 13 states have internal predecessors, (149), 6 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 5 states have call predecessors, (18), 6 states have call successors, (18) [2024-11-28 04:11:48,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:11:48,381 INFO L93 Difference]: Finished difference Result 1415 states and 1897 transitions. [2024-11-28 04:11:48,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 04:11:48,381 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 12.416666666666666) internal successors, (149), 13 states have internal predecessors, (149), 6 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 5 states have call predecessors, (18), 6 states have call successors, (18) Word has length 230 [2024-11-28 04:11:48,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:11:48,384 INFO L225 Difference]: With dead ends: 1415 [2024-11-28 04:11:48,384 INFO L226 Difference]: Without dead ends: 1412 [2024-11-28 04:11:48,384 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 228 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 9.0s TimeCoverageRelationStatistics Valid=136, Invalid=414, Unknown=2, NotChecked=0, Total=552 [2024-11-28 04:11:48,385 INFO L435 NwaCegarLoop]: 154 mSDtfsCounter, 332 mSDsluCounter, 1026 mSDsCounter, 0 mSdLazyCounter, 1907 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 345 SdHoareTripleChecker+Valid, 1180 SdHoareTripleChecker+Invalid, 1926 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1907 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:11:48,385 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [345 Valid, 1180 Invalid, 1926 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 1907 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-28 04:11:48,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1412 states. [2024-11-28 04:11:48,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1412 to 1396. [2024-11-28 04:11:48,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1396 states, 1227 states have (on average 1.3488182559087205) internal successors, (1655), 1280 states have internal predecessors, (1655), 113 states have call successors, (113), 2 states have call predecessors, (113), 2 states have return successors, (113), 113 states have call predecessors, (113), 113 states have call successors, (113) [2024-11-28 04:11:48,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1396 states to 1396 states and 1881 transitions. [2024-11-28 04:11:48,542 INFO L78 Accepts]: Start accepts. Automaton has 1396 states and 1881 transitions. Word has length 230 [2024-11-28 04:11:48,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:11:48,543 INFO L471 AbstractCegarLoop]: Abstraction has 1396 states and 1881 transitions. [2024-11-28 04:11:48,543 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 12.416666666666666) internal successors, (149), 13 states have internal predecessors, (149), 6 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 5 states have call predecessors, (18), 6 states have call successors, (18) [2024-11-28 04:11:48,543 INFO L276 IsEmpty]: Start isEmpty. Operand 1396 states and 1881 transitions. [2024-11-28 04:11:48,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2024-11-28 04:11:48,544 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:11:48,544 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:11:48,556 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (92)] Ended with exit code 0 [2024-11-28 04:11:48,744 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 92 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable95 [2024-11-28 04:11:48,744 INFO L396 AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr49ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 04:11:48,745 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:11:48,745 INFO L85 PathProgramCache]: Analyzing trace with hash 1159519592, now seen corresponding path program 1 times [2024-11-28 04:11:48,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:11:48,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531624940] [2024-11-28 04:11:48,745 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:11:48,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:11:48,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:11:48,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1576976220] [2024-11-28 04:11:48,771 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:11:48,771 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:11:48,771 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:11:48,772 INFO L229 MonitoredProcess]: Starting monitored process 93 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:11:48,773 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (93)] Waiting until timeout for monitored process [2024-11-28 04:11:48,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:11:48,895 INFO L256 TraceCheckSpWp]: Trace formula consists of 384 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-28 04:11:48,897 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:11:54,182 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 30 proven. 134 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2024-11-28 04:11:54,182 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:11:55,207 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 0 proven. 131 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2024-11-28 04:11:55,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:11:55,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531624940] [2024-11-28 04:11:55,207 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:11:55,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1576976220] [2024-11-28 04:11:55,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1576976220] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:11:55,207 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:11:55,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 10] total 21 [2024-11-28 04:11:55,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884142142] [2024-11-28 04:11:55,208 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:11:55,208 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-28 04:11:55,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:11:55,209 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-28 04:11:55,209 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=384, Unknown=1, NotChecked=0, Total=462 [2024-11-28 04:11:55,209 INFO L87 Difference]: Start difference. First operand 1396 states and 1881 transitions. Second operand has 22 states, 21 states have (on average 13.380952380952381) internal successors, (281), 22 states have internal predecessors, (281), 10 states have call successors, (32), 1 states have call predecessors, (32), 2 states have return successors, (32), 10 states have call predecessors, (32), 10 states have call successors, (32) [2024-11-28 04:12:00,174 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:12:08,213 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:12:12,226 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:12:16,397 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:12:20,407 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:12:24,438 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:12:25,637 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:12:29,718 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:12:34,571 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:12:38,602 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:12:42,611 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:12:46,616 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:12:50,636 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:12:55,235 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:12:59,251 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:13:00,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:13:00,465 INFO L93 Difference]: Finished difference Result 1440 states and 1881 transitions. [2024-11-28 04:13:00,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-28 04:13:00,466 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 13.380952380952381) internal successors, (281), 22 states have internal predecessors, (281), 10 states have call successors, (32), 1 states have call predecessors, (32), 2 states have return successors, (32), 10 states have call predecessors, (32), 10 states have call successors, (32) Word has length 231 [2024-11-28 04:13:00,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:13:00,467 INFO L225 Difference]: With dead ends: 1440 [2024-11-28 04:13:00,468 INFO L226 Difference]: Without dead ends: 1439 [2024-11-28 04:13:00,468 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 469 GetRequests, 438 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 8.7s TimeCoverageRelationStatistics Valid=143, Invalid=725, Unknown=2, NotChecked=0, Total=870 [2024-11-28 04:13:00,468 INFO L435 NwaCegarLoop]: 104 mSDtfsCounter, 433 mSDsluCounter, 1052 mSDsCounter, 0 mSdLazyCounter, 2415 mSolverCounterSat, 49 mSolverCounterUnsat, 16 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 60.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 445 SdHoareTripleChecker+Valid, 1156 SdHoareTripleChecker+Invalid, 2480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 2415 IncrementalHoareTripleChecker+Invalid, 16 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 60.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:13:00,468 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [445 Valid, 1156 Invalid, 2480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 2415 Invalid, 16 Unknown, 0 Unchecked, 60.8s Time] [2024-11-28 04:13:00,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1439 states. [2024-11-28 04:13:00,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1439 to 1396. [2024-11-28 04:13:00,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1396 states, 1227 states have (on average 1.3480032599837002) internal successors, (1654), 1280 states have internal predecessors, (1654), 113 states have call successors, (113), 2 states have call predecessors, (113), 2 states have return successors, (113), 113 states have call predecessors, (113), 113 states have call successors, (113) [2024-11-28 04:13:00,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1396 states to 1396 states and 1880 transitions. [2024-11-28 04:13:00,631 INFO L78 Accepts]: Start accepts. Automaton has 1396 states and 1880 transitions. Word has length 231 [2024-11-28 04:13:00,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:13:00,632 INFO L471 AbstractCegarLoop]: Abstraction has 1396 states and 1880 transitions. [2024-11-28 04:13:00,632 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 13.380952380952381) internal successors, (281), 22 states have internal predecessors, (281), 10 states have call successors, (32), 1 states have call predecessors, (32), 2 states have return successors, (32), 10 states have call predecessors, (32), 10 states have call successors, (32) [2024-11-28 04:13:00,632 INFO L276 IsEmpty]: Start isEmpty. Operand 1396 states and 1880 transitions. [2024-11-28 04:13:00,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2024-11-28 04:13:00,633 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:13:00,633 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:13:00,644 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (93)] Ended with exit code 0 [2024-11-28 04:13:00,833 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96,93 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:13:00,834 INFO L396 AbstractCegarLoop]: === Iteration 98 === Targeting ULTIMATE.startErr54ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 04:13:00,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:13:00,834 INFO L85 PathProgramCache]: Analyzing trace with hash 994654485, now seen corresponding path program 2 times [2024-11-28 04:13:00,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:13:00,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979010821] [2024-11-28 04:13:00,834 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:13:00,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:13:00,848 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:13:00,848 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:13:00,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [542948910] [2024-11-28 04:13:00,848 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:13:00,848 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:13:00,849 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:13:00,850 INFO L229 MonitoredProcess]: Starting monitored process 94 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:13:00,858 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (94)] Waiting until timeout for monitored process [2024-11-28 04:13:00,957 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:13:00,957 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:13:00,959 INFO L256 TraceCheckSpWp]: Trace formula consists of 372 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-28 04:13:00,961 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:13:03,001 INFO L134 CoverageAnalysis]: Checked inductivity of 452 backedges. 3 proven. 140 refuted. 0 times theorem prover too weak. 309 trivial. 0 not checked. [2024-11-28 04:13:03,002 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:13:07,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:13:07,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979010821] [2024-11-28 04:13:07,198 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:13:07,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [542948910] [2024-11-28 04:13:07,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [542948910] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:13:07,198 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:13:07,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-11-28 04:13:07,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243001294] [2024-11-28 04:13:07,198 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:13:07,199 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 04:13:07,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:13:07,199 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 04:13:07,199 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=229, Unknown=1, NotChecked=0, Total=306 [2024-11-28 04:13:07,199 INFO L87 Difference]: Start difference. First operand 1396 states and 1880 transitions. Second operand has 14 states, 13 states have (on average 11.538461538461538) internal successors, (150), 13 states have internal predecessors, (150), 6 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2024-11-28 04:13:08,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:13:08,845 INFO L93 Difference]: Finished difference Result 1416 states and 1897 transitions. [2024-11-28 04:13:08,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-28 04:13:08,846 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 11.538461538461538) internal successors, (150), 13 states have internal predecessors, (150), 6 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) Word has length 231 [2024-11-28 04:13:08,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:13:08,848 INFO L225 Difference]: With dead ends: 1416 [2024-11-28 04:13:08,848 INFO L226 Difference]: Without dead ends: 1410 [2024-11-28 04:13:08,848 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=141, Invalid=410, Unknown=1, NotChecked=0, Total=552 [2024-11-28 04:13:08,848 INFO L435 NwaCegarLoop]: 117 mSDtfsCounter, 245 mSDsluCounter, 621 mSDsCounter, 0 mSdLazyCounter, 1561 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 738 SdHoareTripleChecker+Invalid, 1565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1561 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:13:08,848 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [262 Valid, 738 Invalid, 1565 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1561 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-28 04:13:08,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1410 states. [2024-11-28 04:13:08,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1410 to 1393. [2024-11-28 04:13:08,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1393 states, 1224 states have (on average 1.3431372549019607) internal successors, (1644), 1277 states have internal predecessors, (1644), 113 states have call successors, (113), 2 states have call predecessors, (113), 2 states have return successors, (113), 113 states have call predecessors, (113), 113 states have call successors, (113) [2024-11-28 04:13:08,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1393 states to 1393 states and 1870 transitions. [2024-11-28 04:13:08,991 INFO L78 Accepts]: Start accepts. Automaton has 1393 states and 1870 transitions. Word has length 231 [2024-11-28 04:13:08,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:13:08,992 INFO L471 AbstractCegarLoop]: Abstraction has 1393 states and 1870 transitions. [2024-11-28 04:13:08,992 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 11.538461538461538) internal successors, (150), 13 states have internal predecessors, (150), 6 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2024-11-28 04:13:08,992 INFO L276 IsEmpty]: Start isEmpty. Operand 1393 states and 1870 transitions. [2024-11-28 04:13:08,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2024-11-28 04:13:08,992 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:13:08,993 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:13:09,001 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (94)] Ended with exit code 0 [2024-11-28 04:13:09,193 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97,94 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:13:09,193 INFO L396 AbstractCegarLoop]: === Iteration 99 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 04:13:09,193 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:13:09,193 INFO L85 PathProgramCache]: Analyzing trace with hash 1585369160, now seen corresponding path program 1 times [2024-11-28 04:13:09,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:13:09,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693432595] [2024-11-28 04:13:09,194 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:13:09,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:13:09,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:13:09,431 INFO L134 CoverageAnalysis]: Checked inductivity of 456 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 365 trivial. 0 not checked. [2024-11-28 04:13:09,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:13:09,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693432595] [2024-11-28 04:13:09,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693432595] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:13:09,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [475326862] [2024-11-28 04:13:09,432 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:13:09,432 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:13:09,432 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:13:09,433 INFO L229 MonitoredProcess]: Starting monitored process 95 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:13:09,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (95)] Waiting until timeout for monitored process [2024-11-28 04:13:09,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:13:09,530 INFO L256 TraceCheckSpWp]: Trace formula consists of 385 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 04:13:09,532 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:13:09,787 INFO L134 CoverageAnalysis]: Checked inductivity of 456 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 365 trivial. 0 not checked. [2024-11-28 04:13:09,787 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:13:09,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [475326862] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:13:09,915 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:13:09,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2024-11-28 04:13:09,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141040977] [2024-11-28 04:13:09,915 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:13:09,916 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 04:13:09,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:13:09,916 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 04:13:09,916 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-11-28 04:13:09,916 INFO L87 Difference]: Start difference. First operand 1393 states and 1870 transitions. Second operand has 10 states, 9 states have (on average 23.88888888888889) internal successors, (215), 10 states have internal predecessors, (215), 5 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 5 states have call predecessors, (24), 5 states have call successors, (24) [2024-11-28 04:13:10,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:13:10,474 INFO L93 Difference]: Finished difference Result 1423 states and 1870 transitions. [2024-11-28 04:13:10,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:13:10,474 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 23.88888888888889) internal successors, (215), 10 states have internal predecessors, (215), 5 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 5 states have call predecessors, (24), 5 states have call successors, (24) Word has length 232 [2024-11-28 04:13:10,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:13:10,476 INFO L225 Difference]: With dead ends: 1423 [2024-11-28 04:13:10,476 INFO L226 Difference]: Without dead ends: 1422 [2024-11-28 04:13:10,476 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 235 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:13:10,476 INFO L435 NwaCegarLoop]: 203 mSDtfsCounter, 81 mSDsluCounter, 515 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 718 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:13:10,476 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 718 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 04:13:10,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1422 states. [2024-11-28 04:13:10,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1422 to 1393. [2024-11-28 04:13:10,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1393 states, 1224 states have (on average 1.341503267973856) internal successors, (1642), 1277 states have internal predecessors, (1642), 113 states have call successors, (113), 2 states have call predecessors, (113), 2 states have return successors, (113), 113 states have call predecessors, (113), 113 states have call successors, (113) [2024-11-28 04:13:10,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1393 states to 1393 states and 1868 transitions. [2024-11-28 04:13:10,613 INFO L78 Accepts]: Start accepts. Automaton has 1393 states and 1868 transitions. Word has length 232 [2024-11-28 04:13:10,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:13:10,613 INFO L471 AbstractCegarLoop]: Abstraction has 1393 states and 1868 transitions. [2024-11-28 04:13:10,613 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 23.88888888888889) internal successors, (215), 10 states have internal predecessors, (215), 5 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 5 states have call predecessors, (24), 5 states have call successors, (24) [2024-11-28 04:13:10,613 INFO L276 IsEmpty]: Start isEmpty. Operand 1393 states and 1868 transitions. [2024-11-28 04:13:10,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2024-11-28 04:13:10,615 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:13:10,615 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:13:10,627 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (95)] Ended with exit code 0 [2024-11-28 04:13:10,815 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98,95 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:13:10,815 INFO L396 AbstractCegarLoop]: === Iteration 100 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 04:13:10,816 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:13:10,816 INFO L85 PathProgramCache]: Analyzing trace with hash 1901803882, now seen corresponding path program 1 times [2024-11-28 04:13:10,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:13:10,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968875854] [2024-11-28 04:13:10,816 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:13:10,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:13:10,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:13:10,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [132516917] [2024-11-28 04:13:10,833 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:13:10,833 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:13:10,833 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:13:10,834 INFO L229 MonitoredProcess]: Starting monitored process 96 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:13:10,835 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (96)] Waiting until timeout for monitored process [2024-11-28 04:13:10,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:13:10,941 INFO L256 TraceCheckSpWp]: Trace formula consists of 386 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-28 04:13:10,943 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:13:11,744 INFO L134 CoverageAnalysis]: Checked inductivity of 457 backedges. 41 proven. 92 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2024-11-28 04:13:11,744 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:13:11,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:13:11,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968875854] [2024-11-28 04:13:11,928 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:13:11,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [132516917] [2024-11-28 04:13:11,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [132516917] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:13:11,928 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:13:11,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-28 04:13:11,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623617470] [2024-11-28 04:13:11,929 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:13:11,929 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 04:13:11,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:13:11,929 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 04:13:11,929 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2024-11-28 04:13:11,930 INFO L87 Difference]: Start difference. First operand 1393 states and 1868 transitions. Second operand has 9 states, 8 states have (on average 18.625) internal successors, (149), 9 states have internal predecessors, (149), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) [2024-11-28 04:13:13,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:13:13,007 INFO L93 Difference]: Finished difference Result 1413 states and 1868 transitions. [2024-11-28 04:13:13,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 04:13:13,008 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 18.625) internal successors, (149), 9 states have internal predecessors, (149), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) Word has length 233 [2024-11-28 04:13:13,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:13:13,010 INFO L225 Difference]: With dead ends: 1413 [2024-11-28 04:13:13,010 INFO L226 Difference]: Without dead ends: 1412 [2024-11-28 04:13:13,010 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 294 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=76, Invalid=196, Unknown=0, NotChecked=0, Total=272 [2024-11-28 04:13:13,010 INFO L435 NwaCegarLoop]: 150 mSDtfsCounter, 165 mSDsluCounter, 514 mSDsCounter, 0 mSdLazyCounter, 842 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 664 SdHoareTripleChecker+Invalid, 855 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 842 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:13:13,010 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 664 Invalid, 855 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 842 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 04:13:13,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1412 states. [2024-11-28 04:13:13,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1412 to 1393. [2024-11-28 04:13:13,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1393 states, 1224 states have (on average 1.3406862745098038) internal successors, (1641), 1277 states have internal predecessors, (1641), 113 states have call successors, (113), 2 states have call predecessors, (113), 2 states have return successors, (113), 113 states have call predecessors, (113), 113 states have call successors, (113) [2024-11-28 04:13:13,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1393 states to 1393 states and 1867 transitions. [2024-11-28 04:13:13,152 INFO L78 Accepts]: Start accepts. Automaton has 1393 states and 1867 transitions. Word has length 233 [2024-11-28 04:13:13,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:13:13,153 INFO L471 AbstractCegarLoop]: Abstraction has 1393 states and 1867 transitions. [2024-11-28 04:13:13,153 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 18.625) internal successors, (149), 9 states have internal predecessors, (149), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) [2024-11-28 04:13:13,153 INFO L276 IsEmpty]: Start isEmpty. Operand 1393 states and 1867 transitions. [2024-11-28 04:13:13,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2024-11-28 04:13:13,154 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:13:13,154 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:13:13,160 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (96)] Ended with exit code 0 [2024-11-28 04:13:13,354 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99,96 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:13:13,354 INFO L396 AbstractCegarLoop]: === Iteration 101 === Targeting ULTIMATE.startErr52ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 04:13:13,355 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:13:13,355 INFO L85 PathProgramCache]: Analyzing trace with hash -2022535482, now seen corresponding path program 3 times [2024-11-28 04:13:13,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:13:13,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082896836] [2024-11-28 04:13:13,355 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:13:13,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:13:13,376 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-28 04:13:13,376 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:13:13,528 INFO L134 CoverageAnalysis]: Checked inductivity of 459 backedges. 84 proven. 51 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2024-11-28 04:13:13,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:13:13,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082896836] [2024-11-28 04:13:13,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2082896836] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:13:13,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [400223305] [2024-11-28 04:13:13,529 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:13:13,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:13:13,529 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:13:13,531 INFO L229 MonitoredProcess]: Starting monitored process 97 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:13:13,535 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (97)] Waiting until timeout for monitored process [2024-11-28 04:13:13,644 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-28 04:13:13,644 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:13:13,646 INFO L256 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 04:13:13,648 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:13:13,887 INFO L134 CoverageAnalysis]: Checked inductivity of 459 backedges. 84 proven. 51 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2024-11-28 04:13:13,887 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:13:14,140 INFO L134 CoverageAnalysis]: Checked inductivity of 459 backedges. 84 proven. 51 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2024-11-28 04:13:14,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [400223305] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:13:14,140 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:13:14,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 9 [2024-11-28 04:13:14,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734302922] [2024-11-28 04:13:14,141 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:13:14,141 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 04:13:14,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:13:14,142 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 04:13:14,142 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:13:14,142 INFO L87 Difference]: Start difference. First operand 1393 states and 1867 transitions. Second operand has 9 states, 9 states have (on average 22.333333333333332) internal successors, (201), 9 states have internal predecessors, (201), 4 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2024-11-28 04:13:14,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:13:14,976 INFO L93 Difference]: Finished difference Result 2343 states and 3260 transitions. [2024-11-28 04:13:14,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 04:13:14,977 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 22.333333333333332) internal successors, (201), 9 states have internal predecessors, (201), 4 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) Word has length 235 [2024-11-28 04:13:14,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:13:14,980 INFO L225 Difference]: With dead ends: 2343 [2024-11-28 04:13:14,980 INFO L226 Difference]: Without dead ends: 2314 [2024-11-28 04:13:14,981 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 491 GetRequests, 468 SyntacticMatches, 6 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=99, Invalid=243, Unknown=0, NotChecked=0, Total=342 [2024-11-28 04:13:14,981 INFO L435 NwaCegarLoop]: 238 mSDtfsCounter, 780 mSDsluCounter, 1166 mSDsCounter, 0 mSdLazyCounter, 509 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 784 SdHoareTripleChecker+Valid, 1404 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:13:14,981 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [784 Valid, 1404 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 509 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 04:13:14,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2314 states. [2024-11-28 04:13:15,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2314 to 1605. [2024-11-28 04:13:15,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1605 states, 1420 states have (on average 1.3852112676056338) internal successors, (1967), 1473 states have internal predecessors, (1967), 129 states have call successors, (129), 2 states have call predecessors, (129), 2 states have return successors, (129), 129 states have call predecessors, (129), 129 states have call successors, (129) [2024-11-28 04:13:15,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1605 states to 1605 states and 2225 transitions. [2024-11-28 04:13:15,213 INFO L78 Accepts]: Start accepts. Automaton has 1605 states and 2225 transitions. Word has length 235 [2024-11-28 04:13:15,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:13:15,213 INFO L471 AbstractCegarLoop]: Abstraction has 1605 states and 2225 transitions. [2024-11-28 04:13:15,213 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 22.333333333333332) internal successors, (201), 9 states have internal predecessors, (201), 4 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2024-11-28 04:13:15,213 INFO L276 IsEmpty]: Start isEmpty. Operand 1605 states and 2225 transitions. [2024-11-28 04:13:15,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2024-11-28 04:13:15,214 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:13:15,214 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 6, 6, 6, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:13:15,220 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (97)] Ended with exit code 0 [2024-11-28 04:13:15,414 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 97 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable100 [2024-11-28 04:13:15,415 INFO L396 AbstractCegarLoop]: === Iteration 102 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 04:13:15,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:13:15,415 INFO L85 PathProgramCache]: Analyzing trace with hash -56329316, now seen corresponding path program 1 times [2024-11-28 04:13:15,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:13:15,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743371687] [2024-11-28 04:13:15,415 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:13:15,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:13:15,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:13:15,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1710197587] [2024-11-28 04:13:15,435 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:13:15,435 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:13:15,436 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:13:15,439 INFO L229 MonitoredProcess]: Starting monitored process 98 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:13:15,441 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (98)] Waiting until timeout for monitored process [2024-11-28 04:13:15,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:13:15,559 INFO L256 TraceCheckSpWp]: Trace formula consists of 407 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-28 04:13:15,562 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:13:17,332 INFO L134 CoverageAnalysis]: Checked inductivity of 525 backedges. 3 proven. 165 refuted. 0 times theorem prover too weak. 357 trivial. 0 not checked. [2024-11-28 04:13:17,332 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:13:17,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:13:17,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743371687] [2024-11-28 04:13:17,489 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:13:17,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1710197587] [2024-11-28 04:13:17,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1710197587] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:13:17,489 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:13:17,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2024-11-28 04:13:17,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962855283] [2024-11-28 04:13:17,489 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:13:17,490 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-28 04:13:17,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:13:17,490 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-28 04:13:17,490 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2024-11-28 04:13:17,490 INFO L87 Difference]: Start difference. First operand 1605 states and 2225 transitions. Second operand has 15 states, 14 states have (on average 11.285714285714286) internal successors, (158), 14 states have internal predecessors, (158), 7 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) [2024-11-28 04:13:19,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:13:19,395 INFO L93 Difference]: Finished difference Result 1768 states and 2474 transitions. [2024-11-28 04:13:19,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-28 04:13:19,395 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 11.285714285714286) internal successors, (158), 14 states have internal predecessors, (158), 7 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) Word has length 244 [2024-11-28 04:13:19,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:13:19,398 INFO L225 Difference]: With dead ends: 1768 [2024-11-28 04:13:19,398 INFO L226 Difference]: Without dead ends: 1767 [2024-11-28 04:13:19,398 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 269 GetRequests, 249 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=93, Invalid=369, Unknown=0, NotChecked=0, Total=462 [2024-11-28 04:13:19,399 INFO L435 NwaCegarLoop]: 155 mSDtfsCounter, 401 mSDsluCounter, 920 mSDsCounter, 0 mSdLazyCounter, 1975 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 417 SdHoareTripleChecker+Valid, 1075 SdHoareTripleChecker+Invalid, 1987 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1975 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:13:19,399 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [417 Valid, 1075 Invalid, 1987 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1975 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-28 04:13:19,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1767 states. [2024-11-28 04:13:19,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1767 to 1736. [2024-11-28 04:13:19,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1736 states, 1539 states have (on average 1.4119558154645875) internal successors, (2173), 1592 states have internal predecessors, (2173), 141 states have call successors, (141), 2 states have call predecessors, (141), 2 states have return successors, (141), 141 states have call predecessors, (141), 141 states have call successors, (141) [2024-11-28 04:13:19,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1736 states to 1736 states and 2455 transitions. [2024-11-28 04:13:19,588 INFO L78 Accepts]: Start accepts. Automaton has 1736 states and 2455 transitions. Word has length 244 [2024-11-28 04:13:19,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:13:19,588 INFO L471 AbstractCegarLoop]: Abstraction has 1736 states and 2455 transitions. [2024-11-28 04:13:19,588 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 11.285714285714286) internal successors, (158), 14 states have internal predecessors, (158), 7 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) [2024-11-28 04:13:19,588 INFO L276 IsEmpty]: Start isEmpty. Operand 1736 states and 2455 transitions. [2024-11-28 04:13:19,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2024-11-28 04:13:19,589 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:13:19,589 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:13:19,597 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (98)] Ended with exit code 0 [2024-11-28 04:13:19,790 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 98 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable101 [2024-11-28 04:13:19,791 INFO L396 AbstractCegarLoop]: === Iteration 103 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 04:13:19,791 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:13:19,791 INFO L85 PathProgramCache]: Analyzing trace with hash -1746208714, now seen corresponding path program 1 times [2024-11-28 04:13:19,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:13:19,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969942212] [2024-11-28 04:13:19,791 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:13:19,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:13:19,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:13:19,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [594642501] [2024-11-28 04:13:19,808 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:13:19,808 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:13:19,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:13:19,810 INFO L229 MonitoredProcess]: Starting monitored process 99 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:13:19,811 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (99)] Waiting until timeout for monitored process [2024-11-28 04:13:19,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:13:19,914 INFO L256 TraceCheckSpWp]: Trace formula consists of 408 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-28 04:13:19,916 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:13:21,501 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 3 proven. 168 refuted. 0 times theorem prover too weak. 357 trivial. 0 not checked. [2024-11-28 04:13:21,501 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:13:21,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:13:21,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969942212] [2024-11-28 04:13:21,837 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:13:21,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [594642501] [2024-11-28 04:13:21,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [594642501] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:13:21,837 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:13:21,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2024-11-28 04:13:21,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857464210] [2024-11-28 04:13:21,837 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:13:21,838 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-28 04:13:21,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:13:21,838 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-28 04:13:21,838 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2024-11-28 04:13:21,838 INFO L87 Difference]: Start difference. First operand 1736 states and 2455 transitions. Second operand has 15 states, 14 states have (on average 11.357142857142858) internal successors, (159), 14 states have internal predecessors, (159), 7 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) [2024-11-28 04:13:24,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:13:24,051 INFO L93 Difference]: Finished difference Result 1768 states and 2471 transitions. [2024-11-28 04:13:24,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-28 04:13:24,051 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 11.357142857142858) internal successors, (159), 14 states have internal predecessors, (159), 7 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) Word has length 245 [2024-11-28 04:13:24,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:13:24,053 INFO L225 Difference]: With dead ends: 1768 [2024-11-28 04:13:24,054 INFO L226 Difference]: Without dead ends: 1767 [2024-11-28 04:13:24,054 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 271 GetRequests, 251 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=93, Invalid=369, Unknown=0, NotChecked=0, Total=462 [2024-11-28 04:13:24,054 INFO L435 NwaCegarLoop]: 155 mSDtfsCounter, 339 mSDsluCounter, 1094 mSDsCounter, 0 mSdLazyCounter, 2176 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 355 SdHoareTripleChecker+Valid, 1249 SdHoareTripleChecker+Invalid, 2184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 2176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-28 04:13:24,054 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [355 Valid, 1249 Invalid, 2184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 2176 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-28 04:13:24,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1767 states. [2024-11-28 04:13:24,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1767 to 1736. [2024-11-28 04:13:24,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1736 states, 1539 states have (on average 1.410006497725796) internal successors, (2170), 1592 states have internal predecessors, (2170), 141 states have call successors, (141), 2 states have call predecessors, (141), 2 states have return successors, (141), 141 states have call predecessors, (141), 141 states have call successors, (141) [2024-11-28 04:13:24,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1736 states to 1736 states and 2452 transitions. [2024-11-28 04:13:24,267 INFO L78 Accepts]: Start accepts. Automaton has 1736 states and 2452 transitions. Word has length 245 [2024-11-28 04:13:24,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:13:24,267 INFO L471 AbstractCegarLoop]: Abstraction has 1736 states and 2452 transitions. [2024-11-28 04:13:24,267 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 11.357142857142858) internal successors, (159), 14 states have internal predecessors, (159), 7 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) [2024-11-28 04:13:24,268 INFO L276 IsEmpty]: Start isEmpty. Operand 1736 states and 2452 transitions. [2024-11-28 04:13:24,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2024-11-28 04:13:24,269 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:13:24,269 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:13:24,278 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (99)] Ended with exit code 0 [2024-11-28 04:13:24,469 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 99 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable102 [2024-11-28 04:13:24,469 INFO L396 AbstractCegarLoop]: === Iteration 104 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 04:13:24,469 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:13:24,470 INFO L85 PathProgramCache]: Analyzing trace with hash 1702104798, now seen corresponding path program 1 times [2024-11-28 04:13:24,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:13:24,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022450119] [2024-11-28 04:13:24,470 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:13:24,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:13:24,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:13:24,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1028502946] [2024-11-28 04:13:24,494 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:13:24,494 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:13:24,494 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:13:24,498 INFO L229 MonitoredProcess]: Starting monitored process 100 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:13:24,501 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (100)] Waiting until timeout for monitored process [2024-11-28 04:13:24,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:13:24,630 INFO L256 TraceCheckSpWp]: Trace formula consists of 409 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-28 04:13:24,632 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:13:26,077 INFO L134 CoverageAnalysis]: Checked inductivity of 531 backedges. 3 proven. 171 refuted. 0 times theorem prover too weak. 357 trivial. 0 not checked. [2024-11-28 04:13:26,077 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:13:26,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:13:26,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022450119] [2024-11-28 04:13:26,240 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:13:26,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1028502946] [2024-11-28 04:13:26,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1028502946] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:13:26,241 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:13:26,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-11-28 04:13:26,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093207480] [2024-11-28 04:13:26,241 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:13:26,241 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 04:13:26,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:13:26,242 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 04:13:26,242 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=234, Unknown=0, NotChecked=0, Total=272 [2024-11-28 04:13:26,242 INFO L87 Difference]: Start difference. First operand 1736 states and 2452 transitions. Second operand has 14 states, 13 states have (on average 12.307692307692308) internal successors, (160), 13 states have internal predecessors, (160), 7 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) [2024-11-28 04:13:28,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:13:28,548 INFO L93 Difference]: Finished difference Result 1755 states and 2454 transitions. [2024-11-28 04:13:28,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-28 04:13:28,549 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 12.307692307692308) internal successors, (160), 13 states have internal predecessors, (160), 7 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) Word has length 246 [2024-11-28 04:13:28,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:13:28,551 INFO L225 Difference]: With dead ends: 1755 [2024-11-28 04:13:28,551 INFO L226 Difference]: Without dead ends: 1754 [2024-11-28 04:13:28,551 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 279 GetRequests, 254 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=102, Invalid=600, Unknown=0, NotChecked=0, Total=702 [2024-11-28 04:13:28,551 INFO L435 NwaCegarLoop]: 111 mSDtfsCounter, 561 mSDsluCounter, 723 mSDsCounter, 0 mSdLazyCounter, 2448 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 566 SdHoareTripleChecker+Valid, 834 SdHoareTripleChecker+Invalid, 2489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 2448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:13:28,551 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [566 Valid, 834 Invalid, 2489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 2448 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-28 04:13:28,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1754 states. [2024-11-28 04:13:28,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1754 to 1736. [2024-11-28 04:13:28,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1736 states, 1539 states have (on average 1.4080571799870045) internal successors, (2167), 1592 states have internal predecessors, (2167), 141 states have call successors, (141), 2 states have call predecessors, (141), 2 states have return successors, (141), 141 states have call predecessors, (141), 141 states have call successors, (141) [2024-11-28 04:13:28,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1736 states to 1736 states and 2449 transitions. [2024-11-28 04:13:28,723 INFO L78 Accepts]: Start accepts. Automaton has 1736 states and 2449 transitions. Word has length 246 [2024-11-28 04:13:28,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:13:28,724 INFO L471 AbstractCegarLoop]: Abstraction has 1736 states and 2449 transitions. [2024-11-28 04:13:28,724 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 12.307692307692308) internal successors, (160), 13 states have internal predecessors, (160), 7 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) [2024-11-28 04:13:28,724 INFO L276 IsEmpty]: Start isEmpty. Operand 1736 states and 2449 transitions. [2024-11-28 04:13:28,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2024-11-28 04:13:28,725 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:13:28,725 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:13:28,736 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (100)] Ended with exit code 0 [2024-11-28 04:13:28,925 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 100 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable103 [2024-11-28 04:13:28,926 INFO L396 AbstractCegarLoop]: === Iteration 105 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 04:13:28,926 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:13:28,926 INFO L85 PathProgramCache]: Analyzing trace with hash 1225641272, now seen corresponding path program 1 times [2024-11-28 04:13:28,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:13:28,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607019535] [2024-11-28 04:13:28,926 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:13:28,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:13:28,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:13:28,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1280966374] [2024-11-28 04:13:28,957 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:13:28,957 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:13:28,957 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:13:28,959 INFO L229 MonitoredProcess]: Starting monitored process 101 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:13:28,967 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (101)] Waiting until timeout for monitored process [2024-11-28 04:13:29,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:13:29,080 INFO L256 TraceCheckSpWp]: Trace formula consists of 410 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-28 04:13:29,083 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:13:30,586 INFO L134 CoverageAnalysis]: Checked inductivity of 534 backedges. 3 proven. 174 refuted. 0 times theorem prover too weak. 357 trivial. 0 not checked. [2024-11-28 04:13:30,586 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:13:30,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:13:30,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607019535] [2024-11-28 04:13:30,938 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:13:30,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1280966374] [2024-11-28 04:13:30,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1280966374] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:13:30,938 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:13:30,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-11-28 04:13:30,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740085221] [2024-11-28 04:13:30,939 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:13:30,939 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 04:13:30,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:13:30,939 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 04:13:30,939 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2024-11-28 04:13:30,940 INFO L87 Difference]: Start difference. First operand 1736 states and 2449 transitions. Second operand has 14 states, 13 states have (on average 12.384615384615385) internal successors, (161), 13 states have internal predecessors, (161), 7 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) [2024-11-28 04:13:33,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:13:33,416 INFO L93 Difference]: Finished difference Result 1755 states and 2451 transitions. [2024-11-28 04:13:33,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-28 04:13:33,416 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 12.384615384615385) internal successors, (161), 13 states have internal predecessors, (161), 7 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) Word has length 247 [2024-11-28 04:13:33,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:13:33,419 INFO L225 Difference]: With dead ends: 1755 [2024-11-28 04:13:33,419 INFO L226 Difference]: Without dead ends: 1754 [2024-11-28 04:13:33,420 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 256 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=105, Invalid=597, Unknown=0, NotChecked=0, Total=702 [2024-11-28 04:13:33,420 INFO L435 NwaCegarLoop]: 120 mSDtfsCounter, 525 mSDsluCounter, 770 mSDsCounter, 0 mSdLazyCounter, 2552 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 530 SdHoareTripleChecker+Valid, 890 SdHoareTripleChecker+Invalid, 2591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 2552 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:13:33,420 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [530 Valid, 890 Invalid, 2591 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 2552 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-28 04:13:33,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1754 states. [2024-11-28 04:13:33,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1754 to 1736. [2024-11-28 04:13:33,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1736 states, 1539 states have (on average 1.406107862248213) internal successors, (2164), 1592 states have internal predecessors, (2164), 141 states have call successors, (141), 2 states have call predecessors, (141), 2 states have return successors, (141), 141 states have call predecessors, (141), 141 states have call successors, (141) [2024-11-28 04:13:33,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1736 states to 1736 states and 2446 transitions. [2024-11-28 04:13:33,721 INFO L78 Accepts]: Start accepts. Automaton has 1736 states and 2446 transitions. Word has length 247 [2024-11-28 04:13:33,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:13:33,721 INFO L471 AbstractCegarLoop]: Abstraction has 1736 states and 2446 transitions. [2024-11-28 04:13:33,721 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 12.384615384615385) internal successors, (161), 13 states have internal predecessors, (161), 7 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) [2024-11-28 04:13:33,722 INFO L276 IsEmpty]: Start isEmpty. Operand 1736 states and 2446 transitions. [2024-11-28 04:13:33,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2024-11-28 04:13:33,723 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:13:33,723 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:13:33,732 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (101)] Forceful destruction successful, exit code 0 [2024-11-28 04:13:33,923 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104,101 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:13:33,923 INFO L396 AbstractCegarLoop]: === Iteration 106 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 04:13:33,924 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:13:33,924 INFO L85 PathProgramCache]: Analyzing trace with hash -659826144, now seen corresponding path program 1 times [2024-11-28 04:13:33,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:13:33,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486812130] [2024-11-28 04:13:33,924 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:13:33,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:13:33,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:13:33,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [58389477] [2024-11-28 04:13:33,946 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:13:33,947 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:13:33,947 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:13:33,948 INFO L229 MonitoredProcess]: Starting monitored process 102 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:13:33,951 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (102)] Waiting until timeout for monitored process [2024-11-28 04:13:34,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:13:34,070 INFO L256 TraceCheckSpWp]: Trace formula consists of 411 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-28 04:13:34,072 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:13:34,402 INFO L134 CoverageAnalysis]: Checked inductivity of 537 backedges. 0 proven. 123 refuted. 0 times theorem prover too weak. 414 trivial. 0 not checked. [2024-11-28 04:13:34,402 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:13:42,802 INFO L134 CoverageAnalysis]: Checked inductivity of 537 backedges. 0 proven. 123 refuted. 0 times theorem prover too weak. 414 trivial. 0 not checked. [2024-11-28 04:13:42,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:13:42,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486812130] [2024-11-28 04:13:42,803 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:13:42,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [58389477] [2024-11-28 04:13:42,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [58389477] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:13:42,803 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:13:42,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2024-11-28 04:13:42,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492677710] [2024-11-28 04:13:42,803 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:13:42,803 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:13:42,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:13:42,804 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:13:42,804 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=38, Unknown=2, NotChecked=0, Total=56 [2024-11-28 04:13:42,804 INFO L87 Difference]: Start difference. First operand 1736 states and 2446 transitions. Second operand has 8 states, 7 states have (on average 18.0) internal successors, (126), 8 states have internal predecessors, (126), 4 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) [2024-11-28 04:13:43,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:13:43,776 INFO L93 Difference]: Finished difference Result 1822 states and 2471 transitions. [2024-11-28 04:13:43,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:13:43,777 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 18.0) internal successors, (126), 8 states have internal predecessors, (126), 4 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) Word has length 248 [2024-11-28 04:13:43,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:13:43,779 INFO L225 Difference]: With dead ends: 1822 [2024-11-28 04:13:43,780 INFO L226 Difference]: Without dead ends: 1815 [2024-11-28 04:13:43,780 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 496 GetRequests, 486 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 8.1s TimeCoverageRelationStatistics Valid=26, Invalid=62, Unknown=2, NotChecked=0, Total=90 [2024-11-28 04:13:43,780 INFO L435 NwaCegarLoop]: 146 mSDtfsCounter, 191 mSDsluCounter, 517 mSDsCounter, 0 mSdLazyCounter, 585 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 663 SdHoareTripleChecker+Invalid, 597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 585 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:13:43,780 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 663 Invalid, 597 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 585 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 04:13:43,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1815 states. [2024-11-28 04:13:43,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1815 to 1748. [2024-11-28 04:13:43,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1748 states, 1550 states have (on average 1.3993548387096775) internal successors, (2169), 1603 states have internal predecessors, (2169), 142 states have call successors, (142), 2 states have call predecessors, (142), 2 states have return successors, (142), 142 states have call predecessors, (142), 142 states have call successors, (142) [2024-11-28 04:13:43,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1748 states to 1748 states and 2453 transitions. [2024-11-28 04:13:43,965 INFO L78 Accepts]: Start accepts. Automaton has 1748 states and 2453 transitions. Word has length 248 [2024-11-28 04:13:43,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:13:43,965 INFO L471 AbstractCegarLoop]: Abstraction has 1748 states and 2453 transitions. [2024-11-28 04:13:43,965 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 18.0) internal successors, (126), 8 states have internal predecessors, (126), 4 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) [2024-11-28 04:13:43,965 INFO L276 IsEmpty]: Start isEmpty. Operand 1748 states and 2453 transitions. [2024-11-28 04:13:43,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2024-11-28 04:13:43,966 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:13:43,966 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:13:43,976 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (102)] Forceful destruction successful, exit code 0 [2024-11-28 04:13:44,166 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105,102 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:13:44,166 INFO L396 AbstractCegarLoop]: === Iteration 107 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 04:13:44,167 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:13:44,167 INFO L85 PathProgramCache]: Analyzing trace with hash 1020226106, now seen corresponding path program 1 times [2024-11-28 04:13:44,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:13:44,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804569755] [2024-11-28 04:13:44,167 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:13:44,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:13:44,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:13:44,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [765813754] [2024-11-28 04:13:44,186 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:13:44,186 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:13:44,187 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:13:44,190 INFO L229 MonitoredProcess]: Starting monitored process 103 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:13:44,191 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (103)] Waiting until timeout for monitored process [2024-11-28 04:13:44,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:13:44,302 INFO L256 TraceCheckSpWp]: Trace formula consists of 412 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-28 04:13:44,303 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:13:44,686 INFO L134 CoverageAnalysis]: Checked inductivity of 540 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 414 trivial. 0 not checked. [2024-11-28 04:13:44,686 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:13:53,161 INFO L134 CoverageAnalysis]: Checked inductivity of 540 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 414 trivial. 0 not checked. [2024-11-28 04:13:53,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:13:53,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804569755] [2024-11-28 04:13:53,161 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:13:53,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [765813754] [2024-11-28 04:13:53,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [765813754] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:13:53,161 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:13:53,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2024-11-28 04:13:53,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940921904] [2024-11-28 04:13:53,162 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:13:53,162 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:13:53,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:13:53,162 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:13:53,163 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=38, Unknown=2, NotChecked=0, Total=56 [2024-11-28 04:13:53,163 INFO L87 Difference]: Start difference. First operand 1748 states and 2453 transitions. Second operand has 8 states, 7 states have (on average 18.142857142857142) internal successors, (127), 8 states have internal predecessors, (127), 4 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) [2024-11-28 04:13:54,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:13:54,354 INFO L93 Difference]: Finished difference Result 1817 states and 2454 transitions. [2024-11-28 04:13:54,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:13:54,355 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 18.142857142857142) internal successors, (127), 8 states have internal predecessors, (127), 4 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) Word has length 249 [2024-11-28 04:13:54,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:13:54,357 INFO L225 Difference]: With dead ends: 1817 [2024-11-28 04:13:54,357 INFO L226 Difference]: Without dead ends: 1810 [2024-11-28 04:13:54,357 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 498 GetRequests, 488 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=26, Invalid=62, Unknown=2, NotChecked=0, Total=90 [2024-11-28 04:13:54,357 INFO L435 NwaCegarLoop]: 151 mSDtfsCounter, 355 mSDsluCounter, 449 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 360 SdHoareTripleChecker+Valid, 600 SdHoareTripleChecker+Invalid, 485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 04:13:54,357 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [360 Valid, 600 Invalid, 485 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 468 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 04:13:54,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1810 states. [2024-11-28 04:13:54,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1810 to 1623. [2024-11-28 04:13:54,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1623 states, 1436 states have (on average 1.3746518105849581) internal successors, (1974), 1489 states have internal predecessors, (1974), 131 states have call successors, (131), 2 states have call predecessors, (131), 2 states have return successors, (131), 131 states have call predecessors, (131), 131 states have call successors, (131) [2024-11-28 04:13:54,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1623 states to 1623 states and 2236 transitions. [2024-11-28 04:13:54,591 INFO L78 Accepts]: Start accepts. Automaton has 1623 states and 2236 transitions. Word has length 249 [2024-11-28 04:13:54,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:13:54,591 INFO L471 AbstractCegarLoop]: Abstraction has 1623 states and 2236 transitions. [2024-11-28 04:13:54,591 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 18.142857142857142) internal successors, (127), 8 states have internal predecessors, (127), 4 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) [2024-11-28 04:13:54,591 INFO L276 IsEmpty]: Start isEmpty. Operand 1623 states and 2236 transitions. [2024-11-28 04:13:54,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2024-11-28 04:13:54,592 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:13:54,592 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:13:54,602 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (103)] Ended with exit code 0 [2024-11-28 04:13:54,792 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 103 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable106 [2024-11-28 04:13:54,792 INFO L396 AbstractCegarLoop]: === Iteration 108 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 04:13:54,793 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:13:54,793 INFO L85 PathProgramCache]: Analyzing trace with hash 647056584, now seen corresponding path program 1 times [2024-11-28 04:13:54,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:13:54,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165219970] [2024-11-28 04:13:54,793 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:13:54,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:13:54,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:13:54,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [111272635] [2024-11-28 04:13:54,818 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:13:54,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:13:54,818 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:13:54,820 INFO L229 MonitoredProcess]: Starting monitored process 104 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:13:54,823 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (104)] Waiting until timeout for monitored process [2024-11-28 04:13:54,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:13:54,948 INFO L256 TraceCheckSpWp]: Trace formula consists of 422 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-11-28 04:13:54,950 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:13:56,944 INFO L134 CoverageAnalysis]: Checked inductivity of 598 backedges. 3 proven. 186 refuted. 0 times theorem prover too weak. 409 trivial. 0 not checked. [2024-11-28 04:13:56,944 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:14:02,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:14:02,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165219970] [2024-11-28 04:14:02,492 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:14:02,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [111272635] [2024-11-28 04:14:02,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [111272635] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:14:02,492 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:14:02,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2024-11-28 04:14:02,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633618253] [2024-11-28 04:14:02,492 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:14:02,492 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-28 04:14:02,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:14:02,493 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-28 04:14:02,493 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=556, Unknown=1, NotChecked=0, Total=650 [2024-11-28 04:14:02,493 INFO L87 Difference]: Start difference. First operand 1623 states and 2236 transitions. Second operand has 16 states, 15 states have (on average 10.933333333333334) internal successors, (164), 15 states have internal predecessors, (164), 7 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) [2024-11-28 04:14:05,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:14:05,529 INFO L93 Difference]: Finished difference Result 1771 states and 2457 transitions. [2024-11-28 04:14:05,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-28 04:14:05,529 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 10.933333333333334) internal successors, (164), 15 states have internal predecessors, (164), 7 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) Word has length 255 [2024-11-28 04:14:05,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:14:05,531 INFO L225 Difference]: With dead ends: 1771 [2024-11-28 04:14:05,531 INFO L226 Difference]: Without dead ends: 1767 [2024-11-28 04:14:05,532 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 426 GetRequests, 391 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=194, Invalid=1137, Unknown=1, NotChecked=0, Total=1332 [2024-11-28 04:14:05,532 INFO L435 NwaCegarLoop]: 111 mSDtfsCounter, 512 mSDsluCounter, 745 mSDsCounter, 0 mSdLazyCounter, 3239 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 517 SdHoareTripleChecker+Valid, 856 SdHoareTripleChecker+Invalid, 3279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 3239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:14:05,532 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [517 Valid, 856 Invalid, 3279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 3239 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-28 04:14:05,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1767 states. [2024-11-28 04:14:05,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1767 to 1745. [2024-11-28 04:14:05,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1745 states, 1547 states have (on average 1.3865546218487395) internal successors, (2145), 1600 states have internal predecessors, (2145), 142 states have call successors, (142), 2 states have call predecessors, (142), 2 states have return successors, (142), 142 states have call predecessors, (142), 142 states have call successors, (142) [2024-11-28 04:14:05,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1745 states to 1745 states and 2429 transitions. [2024-11-28 04:14:05,776 INFO L78 Accepts]: Start accepts. Automaton has 1745 states and 2429 transitions. Word has length 255 [2024-11-28 04:14:05,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:14:05,776 INFO L471 AbstractCegarLoop]: Abstraction has 1745 states and 2429 transitions. [2024-11-28 04:14:05,776 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 10.933333333333334) internal successors, (164), 15 states have internal predecessors, (164), 7 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) [2024-11-28 04:14:05,776 INFO L276 IsEmpty]: Start isEmpty. Operand 1745 states and 2429 transitions. [2024-11-28 04:14:05,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2024-11-28 04:14:05,777 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:14:05,777 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:14:05,784 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (104)] Forceful destruction successful, exit code 0 [2024-11-28 04:14:05,978 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 104 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable107 [2024-11-28 04:14:05,978 INFO L396 AbstractCegarLoop]: === Iteration 109 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 04:14:05,978 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:14:05,978 INFO L85 PathProgramCache]: Analyzing trace with hash -948877654, now seen corresponding path program 1 times [2024-11-28 04:14:05,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:14:05,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80385551] [2024-11-28 04:14:05,978 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:14:05,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:14:05,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:14:05,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1268051179] [2024-11-28 04:14:05,997 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:14:05,997 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:14:05,997 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:14:05,999 INFO L229 MonitoredProcess]: Starting monitored process 105 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:14:05,999 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (105)] Waiting until timeout for monitored process [2024-11-28 04:14:06,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:14:06,107 INFO L256 TraceCheckSpWp]: Trace formula consists of 424 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-28 04:14:06,109 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:14:08,846 INFO L134 CoverageAnalysis]: Checked inductivity of 604 backedges. 3 proven. 192 refuted. 0 times theorem prover too weak. 409 trivial. 0 not checked. [2024-11-28 04:14:08,846 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:14:10,517 INFO L134 CoverageAnalysis]: Checked inductivity of 604 backedges. 0 proven. 180 refuted. 0 times theorem prover too weak. 424 trivial. 0 not checked. [2024-11-28 04:14:10,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:14:10,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80385551] [2024-11-28 04:14:10,517 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:14:10,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1268051179] [2024-11-28 04:14:10,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1268051179] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:14:10,517 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:14:10,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 13] total 28 [2024-11-28 04:14:10,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56541525] [2024-11-28 04:14:10,517 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:14:10,518 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-11-28 04:14:10,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:14:10,518 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-11-28 04:14:10,518 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=171, Invalid=641, Unknown=0, NotChecked=0, Total=812 [2024-11-28 04:14:10,518 INFO L87 Difference]: Start difference. First operand 1745 states and 2429 transitions. Second operand has 29 states, 28 states have (on average 11.428571428571429) internal successors, (320), 28 states have internal predecessors, (320), 12 states have call successors, (38), 1 states have call predecessors, (38), 2 states have return successors, (39), 12 states have call predecessors, (39), 12 states have call successors, (39) [2024-11-28 04:14:29,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:14:29,099 INFO L93 Difference]: Finished difference Result 2023 states and 2820 transitions. [2024-11-28 04:14:29,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2024-11-28 04:14:29,099 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 11.428571428571429) internal successors, (320), 28 states have internal predecessors, (320), 12 states have call successors, (38), 1 states have call predecessors, (38), 2 states have return successors, (39), 12 states have call predecessors, (39), 12 states have call successors, (39) Word has length 257 [2024-11-28 04:14:29,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:14:29,102 INFO L225 Difference]: With dead ends: 2023 [2024-11-28 04:14:29,103 INFO L226 Difference]: Without dead ends: 2017 [2024-11-28 04:14:29,104 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 556 GetRequests, 485 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1406 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=1100, Invalid=4156, Unknown=0, NotChecked=0, Total=5256 [2024-11-28 04:14:29,104 INFO L435 NwaCegarLoop]: 128 mSDtfsCounter, 2103 mSDsluCounter, 1656 mSDsCounter, 0 mSdLazyCounter, 5156 mSolverCounterSat, 237 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2109 SdHoareTripleChecker+Valid, 1784 SdHoareTripleChecker+Invalid, 5393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 237 IncrementalHoareTripleChecker+Valid, 5156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:14:29,104 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2109 Valid, 1784 Invalid, 5393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [237 Valid, 5156 Invalid, 0 Unknown, 0 Unchecked, 14.6s Time] [2024-11-28 04:14:29,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2017 states. [2024-11-28 04:14:29,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2017 to 1920. [2024-11-28 04:14:29,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1920 states, 1707 states have (on average 1.3919156414762741) internal successors, (2376), 1759 states have internal predecessors, (2376), 158 states have call successors, (158), 2 states have call predecessors, (158), 2 states have return successors, (158), 158 states have call predecessors, (158), 158 states have call successors, (158) [2024-11-28 04:14:29,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1920 states to 1920 states and 2692 transitions. [2024-11-28 04:14:29,469 INFO L78 Accepts]: Start accepts. Automaton has 1920 states and 2692 transitions. Word has length 257 [2024-11-28 04:14:29,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:14:29,469 INFO L471 AbstractCegarLoop]: Abstraction has 1920 states and 2692 transitions. [2024-11-28 04:14:29,469 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 11.428571428571429) internal successors, (320), 28 states have internal predecessors, (320), 12 states have call successors, (38), 1 states have call predecessors, (38), 2 states have return successors, (39), 12 states have call predecessors, (39), 12 states have call successors, (39) [2024-11-28 04:14:29,469 INFO L276 IsEmpty]: Start isEmpty. Operand 1920 states and 2692 transitions. [2024-11-28 04:14:29,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2024-11-28 04:14:29,470 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:14:29,471 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:14:29,481 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (105)] Ended with exit code 0 [2024-11-28 04:14:29,671 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108,105 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:14:29,671 INFO L396 AbstractCegarLoop]: === Iteration 110 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 04:14:29,671 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:14:29,671 INFO L85 PathProgramCache]: Analyzing trace with hash -1338355572, now seen corresponding path program 2 times [2024-11-28 04:14:29,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:14:29,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852713620] [2024-11-28 04:14:29,672 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:14:29,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:14:29,700 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:14:29,700 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:14:29,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1708517660] [2024-11-28 04:14:29,701 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:14:29,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:14:29,701 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:14:29,705 INFO L229 MonitoredProcess]: Starting monitored process 106 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:14:29,708 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (106)] Waiting until timeout for monitored process [2024-11-28 04:14:29,821 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:14:29,821 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:14:29,822 INFO L256 TraceCheckSpWp]: Trace formula consists of 426 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-28 04:14:29,824 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:14:31,270 INFO L134 CoverageAnalysis]: Checked inductivity of 610 backedges. 0 proven. 186 refuted. 0 times theorem prover too weak. 424 trivial. 0 not checked. [2024-11-28 04:14:31,270 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:14:31,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:14:31,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852713620] [2024-11-28 04:14:31,361 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:14:31,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1708517660] [2024-11-28 04:14:31,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1708517660] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:14:31,361 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:14:31,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-11-28 04:14:31,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060788610] [2024-11-28 04:14:31,362 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:14:31,362 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 04:14:31,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:14:31,362 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 04:14:31,362 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2024-11-28 04:14:31,363 INFO L87 Difference]: Start difference. First operand 1920 states and 2692 transitions. Second operand has 14 states, 13 states have (on average 12.692307692307692) internal successors, (165), 14 states have internal predecessors, (165), 6 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 6 states have call predecessors, (20), 6 states have call successors, (20) [2024-11-28 04:14:34,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:14:34,150 INFO L93 Difference]: Finished difference Result 1930 states and 2692 transitions. [2024-11-28 04:14:34,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 04:14:34,150 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 12.692307692307692) internal successors, (165), 14 states have internal predecessors, (165), 6 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 6 states have call predecessors, (20), 6 states have call successors, (20) Word has length 259 [2024-11-28 04:14:34,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:14:34,153 INFO L225 Difference]: With dead ends: 1930 [2024-11-28 04:14:34,153 INFO L226 Difference]: Without dead ends: 1929 [2024-11-28 04:14:34,153 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 267 GetRequests, 250 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=60, Invalid=282, Unknown=0, NotChecked=0, Total=342 [2024-11-28 04:14:34,153 INFO L435 NwaCegarLoop]: 164 mSDtfsCounter, 229 mSDsluCounter, 982 mSDsCounter, 0 mSdLazyCounter, 3064 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 1146 SdHoareTripleChecker+Invalid, 3072 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 3064 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:14:34,153 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [241 Valid, 1146 Invalid, 3072 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 3064 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-28 04:14:34,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1929 states. [2024-11-28 04:14:34,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1929 to 1920. [2024-11-28 04:14:34,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1920 states, 1707 states have (on average 1.3913298183948448) internal successors, (2375), 1759 states have internal predecessors, (2375), 158 states have call successors, (158), 2 states have call predecessors, (158), 2 states have return successors, (158), 158 states have call predecessors, (158), 158 states have call successors, (158) [2024-11-28 04:14:34,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1920 states to 1920 states and 2691 transitions. [2024-11-28 04:14:34,374 INFO L78 Accepts]: Start accepts. Automaton has 1920 states and 2691 transitions. Word has length 259 [2024-11-28 04:14:34,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:14:34,375 INFO L471 AbstractCegarLoop]: Abstraction has 1920 states and 2691 transitions. [2024-11-28 04:14:34,375 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 12.692307692307692) internal successors, (165), 14 states have internal predecessors, (165), 6 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 6 states have call predecessors, (20), 6 states have call successors, (20) [2024-11-28 04:14:34,375 INFO L276 IsEmpty]: Start isEmpty. Operand 1920 states and 2691 transitions. [2024-11-28 04:14:34,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2024-11-28 04:14:34,376 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:14:34,376 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:14:34,383 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (106)] Forceful destruction successful, exit code 0 [2024-11-28 04:14:34,577 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109,106 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:14:34,577 INFO L396 AbstractCegarLoop]: === Iteration 111 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 04:14:34,577 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:14:34,577 INFO L85 PathProgramCache]: Analyzing trace with hash 1460650331, now seen corresponding path program 2 times [2024-11-28 04:14:34,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:14:34,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605582173] [2024-11-28 04:14:34,577 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:14:34,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:14:34,600 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:14:34,600 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:14:34,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [472404517] [2024-11-28 04:14:34,601 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:14:34,602 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:14:34,602 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:14:34,605 INFO L229 MonitoredProcess]: Starting monitored process 107 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:14:34,607 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (107)] Waiting until timeout for monitored process [2024-11-28 04:14:34,744 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:14:34,744 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:14:34,746 INFO L256 TraceCheckSpWp]: Trace formula consists of 427 conjuncts, 62 conjuncts are in the unsatisfiable core [2024-11-28 04:14:34,748 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:14:39,418 INFO L134 CoverageAnalysis]: Checked inductivity of 613 backedges. 3 proven. 201 refuted. 0 times theorem prover too weak. 409 trivial. 0 not checked. [2024-11-28 04:14:39,418 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:14:44,324 INFO L134 CoverageAnalysis]: Checked inductivity of 613 backedges. 3 proven. 201 refuted. 0 times theorem prover too weak. 409 trivial. 0 not checked. [2024-11-28 04:14:44,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:14:44,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605582173] [2024-11-28 04:14:44,324 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:14:44,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [472404517] [2024-11-28 04:14:44,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [472404517] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:14:44,325 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:14:44,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 17] total 33 [2024-11-28 04:14:44,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650172745] [2024-11-28 04:14:44,325 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:14:44,325 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-28 04:14:44,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:14:44,326 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-28 04:14:44,326 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=183, Invalid=939, Unknown=0, NotChecked=0, Total=1122 [2024-11-28 04:14:44,326 INFO L87 Difference]: Start difference. First operand 1920 states and 2691 transitions. Second operand has 34 states, 33 states have (on average 9.93939393939394) internal successors, (328), 32 states have internal predecessors, (328), 13 states have call successors, (38), 1 states have call predecessors, (38), 2 states have return successors, (39), 13 states have call predecessors, (39), 13 states have call successors, (39) [2024-11-28 04:15:21,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:15:21,956 INFO L93 Difference]: Finished difference Result 2009 states and 2799 transitions. [2024-11-28 04:15:21,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2024-11-28 04:15:21,957 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 33 states have (on average 9.93939393939394) internal successors, (328), 32 states have internal predecessors, (328), 13 states have call successors, (38), 1 states have call predecessors, (38), 2 states have return successors, (39), 13 states have call predecessors, (39), 13 states have call successors, (39) Word has length 260 [2024-11-28 04:15:21,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:15:21,959 INFO L225 Difference]: With dead ends: 2009 [2024-11-28 04:15:21,959 INFO L226 Difference]: Without dead ends: 2006 [2024-11-28 04:15:21,960 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 566 GetRequests, 485 SyntacticMatches, 1 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1586 ImplicationChecksByTransitivity, 9.8s TimeCoverageRelationStatistics Valid=1141, Invalid=5501, Unknown=0, NotChecked=0, Total=6642 [2024-11-28 04:15:21,960 INFO L435 NwaCegarLoop]: 71 mSDtfsCounter, 1686 mSDsluCounter, 738 mSDsCounter, 0 mSdLazyCounter, 6771 mSolverCounterSat, 205 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1688 SdHoareTripleChecker+Valid, 809 SdHoareTripleChecker+Invalid, 6976 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 205 IncrementalHoareTripleChecker+Valid, 6771 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:15:21,960 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1688 Valid, 809 Invalid, 6976 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [205 Valid, 6771 Invalid, 0 Unknown, 0 Unchecked, 29.5s Time] [2024-11-28 04:15:21,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2006 states. [2024-11-28 04:15:22,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2006 to 1926. [2024-11-28 04:15:22,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1926 states, 1713 states have (on average 1.3922942206654991) internal successors, (2385), 1765 states have internal predecessors, (2385), 158 states have call successors, (158), 2 states have call predecessors, (158), 2 states have return successors, (158), 158 states have call predecessors, (158), 158 states have call successors, (158) [2024-11-28 04:15:22,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1926 states to 1926 states and 2701 transitions. [2024-11-28 04:15:22,200 INFO L78 Accepts]: Start accepts. Automaton has 1926 states and 2701 transitions. Word has length 260 [2024-11-28 04:15:22,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:15:22,201 INFO L471 AbstractCegarLoop]: Abstraction has 1926 states and 2701 transitions. [2024-11-28 04:15:22,201 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 9.93939393939394) internal successors, (328), 32 states have internal predecessors, (328), 13 states have call successors, (38), 1 states have call predecessors, (38), 2 states have return successors, (39), 13 states have call predecessors, (39), 13 states have call successors, (39) [2024-11-28 04:15:22,201 INFO L276 IsEmpty]: Start isEmpty. Operand 1926 states and 2701 transitions. [2024-11-28 04:15:22,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2024-11-28 04:15:22,202 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:15:22,202 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:15:22,211 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (107)] Forceful destruction successful, exit code 0 [2024-11-28 04:15:22,402 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110,107 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:15:22,402 INFO L396 AbstractCegarLoop]: === Iteration 112 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 04:15:22,402 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:15:22,403 INFO L85 PathProgramCache]: Analyzing trace with hash -1893409305, now seen corresponding path program 2 times [2024-11-28 04:15:22,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:15:22,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372914201] [2024-11-28 04:15:22,403 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:15:22,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:15:22,424 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:15:22,424 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:15:22,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1706306024] [2024-11-28 04:15:22,425 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:15:22,425 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:15:22,426 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:15:22,427 INFO L229 MonitoredProcess]: Starting monitored process 108 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:15:22,428 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (108)] Waiting until timeout for monitored process [2024-11-28 04:15:22,547 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:15:22,547 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:15:22,549 INFO L256 TraceCheckSpWp]: Trace formula consists of 417 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-28 04:15:22,550 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:15:27,614 INFO L134 CoverageAnalysis]: Checked inductivity of 671 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 607 trivial. 0 not checked. [2024-11-28 04:15:27,614 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:15:35,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:15:35,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372914201] [2024-11-28 04:15:35,935 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:15:35,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1706306024] [2024-11-28 04:15:35,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1706306024] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:15:35,935 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:15:35,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-11-28 04:15:35,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785568890] [2024-11-28 04:15:35,935 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:15:35,935 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:15:35,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:15:35,936 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:15:35,936 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=46, Unknown=3, NotChecked=0, Total=72 [2024-11-28 04:15:35,936 INFO L87 Difference]: Start difference. First operand 1926 states and 2701 transitions. Second operand has 6 states, 5 states have (on average 17.0) internal successors, (85), 6 states have internal predecessors, (85), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-28 04:15:39,287 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.33s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:15:40,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:15:40,068 INFO L93 Difference]: Finished difference Result 1935 states and 2701 transitions. [2024-11-28 04:15:40,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:15:40,068 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 17.0) internal successors, (85), 6 states have internal predecessors, (85), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 261 [2024-11-28 04:15:40,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:15:40,070 INFO L225 Difference]: With dead ends: 1935 [2024-11-28 04:15:40,071 INFO L226 Difference]: Without dead ends: 1934 [2024-11-28 04:15:40,071 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 305 GetRequests, 298 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 11.1s TimeCoverageRelationStatistics Valid=23, Invalid=46, Unknown=3, NotChecked=0, Total=72 [2024-11-28 04:15:40,071 INFO L435 NwaCegarLoop]: 154 mSDtfsCounter, 42 mSDsluCounter, 364 mSDsCounter, 0 mSdLazyCounter, 419 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 518 SdHoareTripleChecker+Invalid, 420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 419 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2024-11-28 04:15:40,071 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 518 Invalid, 420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 419 Invalid, 1 Unknown, 0 Unchecked, 3.9s Time] [2024-11-28 04:15:40,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1934 states. [2024-11-28 04:15:40,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1934 to 1926. [2024-11-28 04:15:40,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1926 states, 1713 states have (on average 1.3887915936952715) internal successors, (2379), 1765 states have internal predecessors, (2379), 158 states have call successors, (158), 2 states have call predecessors, (158), 2 states have return successors, (158), 158 states have call predecessors, (158), 158 states have call successors, (158) [2024-11-28 04:15:40,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1926 states to 1926 states and 2695 transitions. [2024-11-28 04:15:40,295 INFO L78 Accepts]: Start accepts. Automaton has 1926 states and 2695 transitions. Word has length 261 [2024-11-28 04:15:40,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:15:40,295 INFO L471 AbstractCegarLoop]: Abstraction has 1926 states and 2695 transitions. [2024-11-28 04:15:40,295 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 17.0) internal successors, (85), 6 states have internal predecessors, (85), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-28 04:15:40,295 INFO L276 IsEmpty]: Start isEmpty. Operand 1926 states and 2695 transitions. [2024-11-28 04:15:40,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2024-11-28 04:15:40,297 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:15:40,297 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:15:40,303 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (108)] Ended with exit code 0 [2024-11-28 04:15:40,497 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 108 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable111 [2024-11-28 04:15:40,497 INFO L396 AbstractCegarLoop]: === Iteration 113 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 04:15:40,498 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:15:40,498 INFO L85 PathProgramCache]: Analyzing trace with hash 1433853799, now seen corresponding path program 2 times [2024-11-28 04:15:40,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:15:40,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118728828] [2024-11-28 04:15:40,498 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:15:40,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:15:40,517 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:15:40,518 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:15:40,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1447929281] [2024-11-28 04:15:40,519 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:15:40,519 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:15:40,520 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:15:40,522 INFO L229 MonitoredProcess]: Starting monitored process 109 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:15:40,525 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (109)] Waiting until timeout for monitored process [2024-11-28 04:15:40,650 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:15:40,650 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:15:40,652 INFO L256 TraceCheckSpWp]: Trace formula consists of 418 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-28 04:15:40,653 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:15:41,853 INFO L134 CoverageAnalysis]: Checked inductivity of 674 backedges. 15 proven. 194 refuted. 0 times theorem prover too weak. 465 trivial. 0 not checked. [2024-11-28 04:15:41,854 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:15:42,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:15:42,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118728828] [2024-11-28 04:15:42,523 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:15:42,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1447929281] [2024-11-28 04:15:42,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1447929281] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:15:42,523 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:15:42,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-28 04:15:42,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552308802] [2024-11-28 04:15:42,523 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:15:42,523 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 04:15:42,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:15:42,524 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 04:15:42,524 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2024-11-28 04:15:42,524 INFO L87 Difference]: Start difference. First operand 1926 states and 2695 transitions. Second operand has 11 states, 10 states have (on average 16.6) internal successors, (166), 10 states have internal predecessors, (166), 6 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (21), 7 states have call predecessors, (21), 6 states have call successors, (21) [2024-11-28 04:15:43,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:15:43,852 INFO L93 Difference]: Finished difference Result 1949 states and 2720 transitions. [2024-11-28 04:15:43,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 04:15:43,852 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 16.6) internal successors, (166), 10 states have internal predecessors, (166), 6 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (21), 7 states have call predecessors, (21), 6 states have call successors, (21) Word has length 262 [2024-11-28 04:15:43,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:15:43,855 INFO L225 Difference]: With dead ends: 1949 [2024-11-28 04:15:43,855 INFO L226 Difference]: Without dead ends: 1948 [2024-11-28 04:15:43,855 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 486 GetRequests, 470 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2024-11-28 04:15:43,855 INFO L435 NwaCegarLoop]: 200 mSDtfsCounter, 149 mSDsluCounter, 979 mSDsCounter, 0 mSdLazyCounter, 1391 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 1179 SdHoareTripleChecker+Invalid, 1395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:15:43,855 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 1179 Invalid, 1395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1391 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 04:15:43,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1948 states. [2024-11-28 04:15:44,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1948 to 1926. [2024-11-28 04:15:44,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1926 states, 1713 states have (on average 1.3870402802101576) internal successors, (2376), 1765 states have internal predecessors, (2376), 158 states have call successors, (158), 2 states have call predecessors, (158), 2 states have return successors, (158), 158 states have call predecessors, (158), 158 states have call successors, (158) [2024-11-28 04:15:44,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1926 states to 1926 states and 2692 transitions. [2024-11-28 04:15:44,068 INFO L78 Accepts]: Start accepts. Automaton has 1926 states and 2692 transitions. Word has length 262 [2024-11-28 04:15:44,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:15:44,068 INFO L471 AbstractCegarLoop]: Abstraction has 1926 states and 2692 transitions. [2024-11-28 04:15:44,069 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 16.6) internal successors, (166), 10 states have internal predecessors, (166), 6 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (21), 7 states have call predecessors, (21), 6 states have call successors, (21) [2024-11-28 04:15:44,069 INFO L276 IsEmpty]: Start isEmpty. Operand 1926 states and 2692 transitions. [2024-11-28 04:15:44,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2024-11-28 04:15:44,069 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:15:44,070 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:15:44,080 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (109)] Forceful destruction successful, exit code 0 [2024-11-28 04:15:44,270 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 109 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable112 [2024-11-28 04:15:44,270 INFO L396 AbstractCegarLoop]: === Iteration 114 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 04:15:44,270 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:15:44,270 INFO L85 PathProgramCache]: Analyzing trace with hash 1499794921, now seen corresponding path program 1 times [2024-11-28 04:15:44,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:15:44,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517800881] [2024-11-28 04:15:44,271 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:15:44,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:15:44,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:15:44,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1639843879] [2024-11-28 04:15:44,296 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:15:44,296 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:15:44,296 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:15:44,298 INFO L229 MonitoredProcess]: Starting monitored process 110 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:15:44,314 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (110)] Waiting until timeout for monitored process [2024-11-28 04:15:44,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:15:44,428 INFO L256 TraceCheckSpWp]: Trace formula consists of 419 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-28 04:15:44,430 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:15:47,454 INFO L134 CoverageAnalysis]: Checked inductivity of 677 backedges. 39 proven. 215 refuted. 0 times theorem prover too weak. 423 trivial. 0 not checked. [2024-11-28 04:15:47,454 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:15:48,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:15:48,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517800881] [2024-11-28 04:15:48,204 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:15:48,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1639843879] [2024-11-28 04:15:48,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1639843879] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:15:48,204 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:15:48,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2024-11-28 04:15:48,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436831498] [2024-11-28 04:15:48,204 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:15:48,204 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-28 04:15:48,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:15:48,205 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-28 04:15:48,205 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=442, Unknown=0, NotChecked=0, Total=506 [2024-11-28 04:15:48,205 INFO L87 Difference]: Start difference. First operand 1926 states and 2692 transitions. Second operand has 18 states, 17 states have (on average 10.0) internal successors, (170), 16 states have internal predecessors, (170), 7 states have call successors, (21), 1 states have call predecessors, (21), 3 states have return successors, (21), 8 states have call predecessors, (21), 7 states have call successors, (21) [2024-11-28 04:15:52,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:15:52,063 INFO L93 Difference]: Finished difference Result 1949 states and 2717 transitions. [2024-11-28 04:15:52,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-28 04:15:52,064 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 10.0) internal successors, (170), 16 states have internal predecessors, (170), 7 states have call successors, (21), 1 states have call predecessors, (21), 3 states have return successors, (21), 8 states have call predecessors, (21), 7 states have call successors, (21) Word has length 263 [2024-11-28 04:15:52,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:15:52,066 INFO L225 Difference]: With dead ends: 1949 [2024-11-28 04:15:52,066 INFO L226 Difference]: Without dead ends: 1948 [2024-11-28 04:15:52,066 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 321 GetRequests, 288 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=165, Invalid=1025, Unknown=0, NotChecked=0, Total=1190 [2024-11-28 04:15:52,066 INFO L435 NwaCegarLoop]: 93 mSDtfsCounter, 309 mSDsluCounter, 563 mSDsCounter, 0 mSdLazyCounter, 3244 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 318 SdHoareTripleChecker+Valid, 656 SdHoareTripleChecker+Invalid, 3263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 3244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:15:52,066 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [318 Valid, 656 Invalid, 3263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 3244 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-28 04:15:52,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1948 states. [2024-11-28 04:15:52,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1948 to 1926. [2024-11-28 04:15:52,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1926 states, 1713 states have (on average 1.3852889667250439) internal successors, (2373), 1765 states have internal predecessors, (2373), 158 states have call successors, (158), 2 states have call predecessors, (158), 2 states have return successors, (158), 158 states have call predecessors, (158), 158 states have call successors, (158) [2024-11-28 04:15:52,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1926 states to 1926 states and 2689 transitions. [2024-11-28 04:15:52,297 INFO L78 Accepts]: Start accepts. Automaton has 1926 states and 2689 transitions. Word has length 263 [2024-11-28 04:15:52,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:15:52,298 INFO L471 AbstractCegarLoop]: Abstraction has 1926 states and 2689 transitions. [2024-11-28 04:15:52,298 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 10.0) internal successors, (170), 16 states have internal predecessors, (170), 7 states have call successors, (21), 1 states have call predecessors, (21), 3 states have return successors, (21), 8 states have call predecessors, (21), 7 states have call successors, (21) [2024-11-28 04:15:52,298 INFO L276 IsEmpty]: Start isEmpty. Operand 1926 states and 2689 transitions. [2024-11-28 04:15:52,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2024-11-28 04:15:52,299 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:15:52,299 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:15:52,312 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (110)] Forceful destruction successful, exit code 0 [2024-11-28 04:15:52,499 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 110 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable113 [2024-11-28 04:15:52,500 INFO L396 AbstractCegarLoop]: === Iteration 115 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 04:15:52,500 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:15:52,500 INFO L85 PathProgramCache]: Analyzing trace with hash -750997591, now seen corresponding path program 2 times [2024-11-28 04:15:52,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:15:52,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105942848] [2024-11-28 04:15:52,500 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:15:52,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:15:52,516 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:15:52,516 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:15:52,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1054423684] [2024-11-28 04:15:52,517 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:15:52,517 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:15:52,517 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:15:52,519 INFO L229 MonitoredProcess]: Starting monitored process 111 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:15:52,520 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (111)] Waiting until timeout for monitored process [2024-11-28 04:15:52,646 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:15:52,646 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:15:52,648 INFO L256 TraceCheckSpWp]: Trace formula consists of 420 conjuncts, 46 conjuncts are in the unsatisfiable core [2024-11-28 04:15:52,650 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:15:57,765 INFO L134 CoverageAnalysis]: Checked inductivity of 680 backedges. 12 proven. 212 refuted. 0 times theorem prover too weak. 456 trivial. 0 not checked. [2024-11-28 04:15:57,765 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:16:00,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:16:00,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105942848] [2024-11-28 04:16:00,863 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:16:00,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1054423684] [2024-11-28 04:16:00,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1054423684] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:16:00,864 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:16:00,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2024-11-28 04:16:00,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934520025] [2024-11-28 04:16:00,864 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:16:00,864 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-28 04:16:00,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:16:00,865 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-28 04:16:00,865 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=867, Unknown=0, NotChecked=0, Total=992 [2024-11-28 04:16:00,865 INFO L87 Difference]: Start difference. First operand 1926 states and 2689 transitions. Second operand has 19 states, 18 states have (on average 9.333333333333334) internal successors, (168), 18 states have internal predecessors, (168), 7 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (21), 7 states have call predecessors, (21), 7 states have call successors, (21) [2024-11-28 04:16:08,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:16:08,288 INFO L93 Difference]: Finished difference Result 1941 states and 2700 transitions. [2024-11-28 04:16:08,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-28 04:16:08,289 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 9.333333333333334) internal successors, (168), 18 states have internal predecessors, (168), 7 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (21), 7 states have call predecessors, (21), 7 states have call successors, (21) Word has length 264 [2024-11-28 04:16:08,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:16:08,291 INFO L225 Difference]: With dead ends: 1941 [2024-11-28 04:16:08,291 INFO L226 Difference]: Without dead ends: 1939 [2024-11-28 04:16:08,292 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 504 GetRequests, 460 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 218 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=287, Invalid=1783, Unknown=0, NotChecked=0, Total=2070 [2024-11-28 04:16:08,292 INFO L435 NwaCegarLoop]: 92 mSDtfsCounter, 679 mSDsluCounter, 614 mSDsCounter, 0 mSdLazyCounter, 3762 mSolverCounterSat, 56 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 684 SdHoareTripleChecker+Valid, 706 SdHoareTripleChecker+Invalid, 3819 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 3762 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:16:08,292 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [684 Valid, 706 Invalid, 3819 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 3762 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2024-11-28 04:16:08,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1939 states. [2024-11-28 04:16:08,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1939 to 1926. [2024-11-28 04:16:08,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1926 states, 1713 states have (on average 1.381786339754816) internal successors, (2367), 1765 states have internal predecessors, (2367), 158 states have call successors, (158), 2 states have call predecessors, (158), 2 states have return successors, (158), 158 states have call predecessors, (158), 158 states have call successors, (158) [2024-11-28 04:16:08,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1926 states to 1926 states and 2683 transitions. [2024-11-28 04:16:08,527 INFO L78 Accepts]: Start accepts. Automaton has 1926 states and 2683 transitions. Word has length 264 [2024-11-28 04:16:08,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:16:08,527 INFO L471 AbstractCegarLoop]: Abstraction has 1926 states and 2683 transitions. [2024-11-28 04:16:08,527 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 9.333333333333334) internal successors, (168), 18 states have internal predecessors, (168), 7 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (21), 7 states have call predecessors, (21), 7 states have call successors, (21) [2024-11-28 04:16:08,527 INFO L276 IsEmpty]: Start isEmpty. Operand 1926 states and 2683 transitions. [2024-11-28 04:16:08,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2024-11-28 04:16:08,528 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:16:08,528 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:16:08,534 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (111)] Forceful destruction successful, exit code 0 [2024-11-28 04:16:08,728 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 111 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable114 [2024-11-28 04:16:08,728 INFO L396 AbstractCegarLoop]: === Iteration 116 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 04:16:08,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:16:08,729 INFO L85 PathProgramCache]: Analyzing trace with hash -1806088725, now seen corresponding path program 2 times [2024-11-28 04:16:08,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:16:08,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038370652] [2024-11-28 04:16:08,729 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:16:08,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:16:08,751 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:16:08,751 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:16:08,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1027541034] [2024-11-28 04:16:08,752 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:16:08,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:16:08,752 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:16:08,754 INFO L229 MonitoredProcess]: Starting monitored process 112 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:16:08,755 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (112)] Waiting until timeout for monitored process [2024-11-28 04:16:08,864 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:16:08,864 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:16:08,866 INFO L256 TraceCheckSpWp]: Trace formula consists of 421 conjuncts, 47 conjuncts are in the unsatisfiable core [2024-11-28 04:16:08,867 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:16:12,775 INFO L134 CoverageAnalysis]: Checked inductivity of 683 backedges. 45 proven. 215 refuted. 0 times theorem prover too weak. 423 trivial. 0 not checked. [2024-11-28 04:16:12,775 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:16:13,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:16:13,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038370652] [2024-11-28 04:16:13,543 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:16:13,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1027541034] [2024-11-28 04:16:13,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1027541034] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:16:13,544 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:16:13,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2024-11-28 04:16:13,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468705535] [2024-11-28 04:16:13,544 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:16:13,544 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-28 04:16:13,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:16:13,544 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-28 04:16:13,544 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=531, Unknown=0, NotChecked=0, Total=600 [2024-11-28 04:16:13,545 INFO L87 Difference]: Start difference. First operand 1926 states and 2683 transitions. Second operand has 19 states, 18 states have (on average 9.555555555555555) internal successors, (172), 17 states have internal predecessors, (172), 7 states have call successors, (21), 1 states have call predecessors, (21), 3 states have return successors, (21), 7 states have call predecessors, (21), 7 states have call successors, (21) [2024-11-28 04:16:17,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:16:17,712 INFO L93 Difference]: Finished difference Result 1942 states and 2696 transitions. [2024-11-28 04:16:17,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-28 04:16:17,712 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 9.555555555555555) internal successors, (172), 17 states have internal predecessors, (172), 7 states have call successors, (21), 1 states have call predecessors, (21), 3 states have return successors, (21), 7 states have call predecessors, (21), 7 states have call successors, (21) Word has length 265 [2024-11-28 04:16:17,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:16:17,714 INFO L225 Difference]: With dead ends: 1942 [2024-11-28 04:16:17,714 INFO L226 Difference]: Without dead ends: 1941 [2024-11-28 04:16:17,715 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 322 GetRequests, 290 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=138, Invalid=984, Unknown=0, NotChecked=0, Total=1122 [2024-11-28 04:16:17,715 INFO L435 NwaCegarLoop]: 122 mSDtfsCounter, 204 mSDsluCounter, 887 mSDsCounter, 0 mSdLazyCounter, 4391 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 1009 SdHoareTripleChecker+Invalid, 4415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 4391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:16:17,715 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [209 Valid, 1009 Invalid, 4415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 4391 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-28 04:16:17,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1941 states. [2024-11-28 04:16:17,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1941 to 1926. [2024-11-28 04:16:17,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1926 states, 1713 states have (on average 1.3812025685931115) internal successors, (2366), 1765 states have internal predecessors, (2366), 158 states have call successors, (158), 2 states have call predecessors, (158), 2 states have return successors, (158), 158 states have call predecessors, (158), 158 states have call successors, (158) [2024-11-28 04:16:17,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1926 states to 1926 states and 2682 transitions. [2024-11-28 04:16:17,992 INFO L78 Accepts]: Start accepts. Automaton has 1926 states and 2682 transitions. Word has length 265 [2024-11-28 04:16:17,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:16:17,992 INFO L471 AbstractCegarLoop]: Abstraction has 1926 states and 2682 transitions. [2024-11-28 04:16:17,992 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 9.555555555555555) internal successors, (172), 17 states have internal predecessors, (172), 7 states have call successors, (21), 1 states have call predecessors, (21), 3 states have return successors, (21), 7 states have call predecessors, (21), 7 states have call successors, (21) [2024-11-28 04:16:17,992 INFO L276 IsEmpty]: Start isEmpty. Operand 1926 states and 2682 transitions. [2024-11-28 04:16:17,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2024-11-28 04:16:17,993 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:16:17,993 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:16:18,004 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (112)] Ended with exit code 0 [2024-11-28 04:16:18,194 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 112 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable115 [2024-11-28 04:16:18,194 INFO L396 AbstractCegarLoop]: === Iteration 117 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 04:16:18,194 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:16:18,194 INFO L85 PathProgramCache]: Analyzing trace with hash -1542735694, now seen corresponding path program 2 times [2024-11-28 04:16:18,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:16:18,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058291166] [2024-11-28 04:16:18,194 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:16:18,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:16:18,214 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:16:18,215 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:16:18,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [604549303] [2024-11-28 04:16:18,216 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:16:18,216 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:16:18,216 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:16:18,217 INFO L229 MonitoredProcess]: Starting monitored process 113 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:16:18,218 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (113)] Waiting until timeout for monitored process [2024-11-28 04:16:18,334 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:16:18,334 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:16:18,336 INFO L256 TraceCheckSpWp]: Trace formula consists of 437 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-28 04:16:18,338 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:16:19,457 INFO L134 CoverageAnalysis]: Checked inductivity of 675 backedges. 12 proven. 198 refuted. 0 times theorem prover too weak. 465 trivial. 0 not checked. [2024-11-28 04:16:19,457 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:16:44,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:16:44,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058291166] [2024-11-28 04:16:44,614 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:16:44,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [604549303] [2024-11-28 04:16:44,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [604549303] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:16:44,614 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:16:44,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-28 04:16:44,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574537900] [2024-11-28 04:16:44,614 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:16:44,615 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 04:16:44,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:16:44,615 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 04:16:44,615 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=280, Unknown=6, NotChecked=0, Total=342 [2024-11-28 04:16:44,615 INFO L87 Difference]: Start difference. First operand 1926 states and 2682 transitions. Second operand has 12 states, 11 states have (on average 15.454545454545455) internal successors, (170), 12 states have internal predecessors, (170), 6 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (21), 5 states have call predecessors, (21), 6 states have call successors, (21) [2024-11-28 04:16:46,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:16:46,132 INFO L93 Difference]: Finished difference Result 2083 states and 2887 transitions. [2024-11-28 04:16:46,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 04:16:46,133 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 15.454545454545455) internal successors, (170), 12 states have internal predecessors, (170), 6 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (21), 5 states have call predecessors, (21), 6 states have call successors, (21) Word has length 266 [2024-11-28 04:16:46,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:16:46,135 INFO L225 Difference]: With dead ends: 2083 [2024-11-28 04:16:46,135 INFO L226 Difference]: Without dead ends: 2082 [2024-11-28 04:16:46,136 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 437 GetRequests, 420 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 24.9s TimeCoverageRelationStatistics Valid=56, Invalid=280, Unknown=6, NotChecked=0, Total=342 [2024-11-28 04:16:46,136 INFO L435 NwaCegarLoop]: 194 mSDtfsCounter, 117 mSDsluCounter, 1329 mSDsCounter, 0 mSdLazyCounter, 2012 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 1523 SdHoareTripleChecker+Invalid, 2012 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2012 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:16:46,136 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 1523 Invalid, 2012 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2012 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-28 04:16:46,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2082 states. [2024-11-28 04:16:46,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2082 to 2042. [2024-11-28 04:16:46,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2042 states, 1819 states have (on average 1.3903243540406818) internal successors, (2529), 1871 states have internal predecessors, (2529), 168 states have call successors, (168), 2 states have call predecessors, (168), 2 states have return successors, (168), 168 states have call predecessors, (168), 168 states have call successors, (168) [2024-11-28 04:16:46,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2042 states to 2042 states and 2865 transitions. [2024-11-28 04:16:46,370 INFO L78 Accepts]: Start accepts. Automaton has 2042 states and 2865 transitions. Word has length 266 [2024-11-28 04:16:46,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:16:46,370 INFO L471 AbstractCegarLoop]: Abstraction has 2042 states and 2865 transitions. [2024-11-28 04:16:46,370 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 15.454545454545455) internal successors, (170), 12 states have internal predecessors, (170), 6 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (21), 5 states have call predecessors, (21), 6 states have call successors, (21) [2024-11-28 04:16:46,371 INFO L276 IsEmpty]: Start isEmpty. Operand 2042 states and 2865 transitions. [2024-11-28 04:16:46,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2024-11-28 04:16:46,371 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:16:46,371 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:16:46,381 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (113)] Ended with exit code 0 [2024-11-28 04:16:46,572 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 113 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable116 [2024-11-28 04:16:46,572 INFO L396 AbstractCegarLoop]: === Iteration 118 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 04:16:46,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:16:46,572 INFO L85 PathProgramCache]: Analyzing trace with hash -580166150, now seen corresponding path program 3 times [2024-11-28 04:16:46,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:16:46,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607278006] [2024-11-28 04:16:46,572 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:16:46,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:16:46,607 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2024-11-28 04:16:46,607 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:16:46,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1473966481] [2024-11-28 04:16:46,609 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:16:46,609 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:16:46,609 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:16:46,612 INFO L229 MonitoredProcess]: Starting monitored process 114 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:16:46,615 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852ad857-81cc-49b6-a604-ec8c087f6744/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (114)] Waiting until timeout for monitored process [2024-11-28 04:16:46,865 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-28 04:16:46,865 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:16:46,867 INFO L256 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 38 conjuncts are in the unsatisfiable core [2024-11-28 04:16:46,869 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:16:51,918 INFO L134 CoverageAnalysis]: Checked inductivity of 678 backedges. 0 proven. 198 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-28 04:16:51,918 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:16:58,032 INFO L134 CoverageAnalysis]: Checked inductivity of 678 backedges. 0 proven. 198 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-28 04:16:58,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:16:58,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607278006] [2024-11-28 04:16:58,032 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:16:58,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1473966481] [2024-11-28 04:16:58,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1473966481] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:16:58,033 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:16:58,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 15] total 28 [2024-11-28 04:16:58,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129956270] [2024-11-28 04:16:58,033 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:16:58,033 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-11-28 04:16:58,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:16:58,034 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-11-28 04:16:58,034 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=692, Unknown=1, NotChecked=0, Total=812 [2024-11-28 04:16:58,034 INFO L87 Difference]: Start difference. First operand 2042 states and 2865 transitions. Second operand has 29 states, 28 states have (on average 11.678571428571429) internal successors, (327), 29 states have internal predecessors, (327), 11 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 11 states have call predecessors, (38), 11 states have call successors, (38) [2024-11-28 04:17:03,210 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:17:08,675 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:17:13,918 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:17:19,023 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:17:23,122 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0]