./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/ps6-ll_valuebound100.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_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/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_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/ps6-ll_valuebound100.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/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_7766f6f2-c34d-4222-a79d-8ca3b82b7854/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 b8588da8d66d82eb7aa3eaf3ef7c4d24b2b275bf9c1acdf38a110c8bc6eba3b7 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 05:06:44,504 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 05:06:44,604 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-28 05:06:44,611 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 05:06:44,616 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 05:06:44,651 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 05:06:44,651 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 05:06:44,651 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 05:06:44,652 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 05:06:44,652 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 05:06:44,653 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 05:06:44,653 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 05:06:44,654 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 05:06:44,654 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 05:06:44,654 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 05:06:44,654 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 05:06:44,654 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 05:06:44,654 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 05:06:44,654 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 05:06:44,654 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 05:06:44,654 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 05:06:44,655 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 05:06:44,655 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 05:06:44,655 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 05:06:44,655 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-28 05:06:44,655 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 05:06:44,655 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 05:06:44,655 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 05:06:44,655 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 05:06:44,655 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 05:06:44,655 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 05:06:44,655 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 05:06:44,655 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 05:06:44,655 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 05:06:44,656 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:06:44,656 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 05:06:44,656 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 05:06:44,656 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 05:06:44,656 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 05:06:44,656 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:06:44,656 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 05:06:44,656 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 05:06:44,656 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 05:06:44,656 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 05:06:44,656 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 05:06:44,656 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 05:06:44,658 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 05:06:44,658 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 05:06:44,658 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 05:06:44,658 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 05:06:44,658 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_7766f6f2-c34d-4222-a79d-8ca3b82b7854/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 -> b8588da8d66d82eb7aa3eaf3ef7c4d24b2b275bf9c1acdf38a110c8bc6eba3b7 [2024-11-28 05:06:44,970 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 05:06:44,984 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 05:06:44,987 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 05:06:44,989 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 05:06:44,990 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 05:06:44,991 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/nla-digbench-scaling/ps6-ll_valuebound100.c [2024-11-28 05:06:48,070 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/data/d12d99783/20f2366dce9a46a18f3047fa6c80f067/FLAG804ea1483 [2024-11-28 05:06:48,300 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 05:06:48,301 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/sv-benchmarks/c/nla-digbench-scaling/ps6-ll_valuebound100.c [2024-11-28 05:06:48,308 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/data/d12d99783/20f2366dce9a46a18f3047fa6c80f067/FLAG804ea1483 [2024-11-28 05:06:48,332 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/data/d12d99783/20f2366dce9a46a18f3047fa6c80f067 [2024-11-28 05:06:48,337 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 05:06:48,339 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 05:06:48,340 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 05:06:48,340 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 05:06:48,346 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 05:06:48,347 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:06:48" (1/1) ... [2024-11-28 05:06:48,348 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d67ae78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:06:48, skipping insertion in model container [2024-11-28 05:06:48,348 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:06:48" (1/1) ... [2024-11-28 05:06:48,363 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 05:06:48,523 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 05:06:48,539 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 05:06:48,574 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 05:06:48,594 INFO L204 MainTranslator]: Completed translation [2024-11-28 05:06:48,595 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:06:48 WrapperNode [2024-11-28 05:06:48,595 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 05:06:48,596 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 05:06:48,596 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 05:06:48,597 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 05:06:48,604 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:06:48" (1/1) ... [2024-11-28 05:06:48,615 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:06:48" (1/1) ... [2024-11-28 05:06:48,649 INFO L138 Inliner]: procedures = 14, calls = 13, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 143 [2024-11-28 05:06:48,650 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 05:06:48,650 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 05:06:48,651 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 05:06:48,651 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 05:06:48,661 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:06:48" (1/1) ... [2024-11-28 05:06:48,661 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:06:48" (1/1) ... [2024-11-28 05:06:48,663 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:06:48" (1/1) ... [2024-11-28 05:06:48,676 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 05:06:48,676 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:06:48" (1/1) ... [2024-11-28 05:06:48,676 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:06:48" (1/1) ... [2024-11-28 05:06:48,680 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:06:48" (1/1) ... [2024-11-28 05:06:48,681 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:06:48" (1/1) ... [2024-11-28 05:06:48,687 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:06:48" (1/1) ... [2024-11-28 05:06:48,688 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:06:48" (1/1) ... [2024-11-28 05:06:48,692 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:06:48" (1/1) ... [2024-11-28 05:06:48,698 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 05:06:48,699 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 05:06:48,699 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 05:06:48,699 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 05:06:48,700 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:06:48" (1/1) ... [2024-11-28 05:06:48,709 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:06:48,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:06:48,736 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 05:06:48,741 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 05:06:48,769 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 05:06:48,769 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 05:06:48,769 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 05:06:48,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 05:06:48,770 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 05:06:48,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 05:06:48,770 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-28 05:06:48,770 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-28 05:06:48,823 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 05:06:48,825 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 05:06:49,561 INFO L? ?]: Removed 91 outVars from TransFormulas that were not future-live. [2024-11-28 05:06:49,561 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 05:06:49,589 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 05:06:49,589 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 05:06:49,590 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:06:49 BoogieIcfgContainer [2024-11-28 05:06:49,590 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 05:06:49,595 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 05:06:49,595 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 05:06:49,601 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 05:06:49,601 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 05:06:48" (1/3) ... [2024-11-28 05:06:49,602 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e8b8c59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:06:49, skipping insertion in model container [2024-11-28 05:06:49,603 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:06:48" (2/3) ... [2024-11-28 05:06:49,603 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e8b8c59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:06:49, skipping insertion in model container [2024-11-28 05:06:49,603 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:06:49" (3/3) ... [2024-11-28 05:06:49,605 INFO L128 eAbstractionObserver]: Analyzing ICFG ps6-ll_valuebound100.c [2024-11-28 05:06:49,623 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 05:06:49,625 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG ps6-ll_valuebound100.c that has 3 procedures, 227 locations, 1 initial locations, 1 loop locations, and 102 error locations. [2024-11-28 05:06:49,692 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 05:06:49,710 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;@76d47d28, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 05:06:49,711 INFO L334 AbstractCegarLoop]: Starting to check reachability of 102 error locations. [2024-11-28 05:06:49,715 INFO L276 IsEmpty]: Start isEmpty. Operand has 227 states, 117 states have (on average 1.9145299145299146) internal successors, (224), 219 states have internal predecessors, (224), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-28 05:06:49,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-28 05:06:49,724 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:06:49,725 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:06:49,725 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-11-28 05:06:49,731 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:06:49,732 INFO L85 PathProgramCache]: Analyzing trace with hash -415487312, now seen corresponding path program 1 times [2024-11-28 05:06:49,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:06:49,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549127464] [2024-11-28 05:06:49,763 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:06:49,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:06:49,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:06:49,897 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-28 05:06:49,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:06:49,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549127464] [2024-11-28 05:06:49,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1549127464] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:06:49,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [114146803] [2024-11-28 05:06:49,903 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:06:49,903 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:06:49,903 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:06:49,910 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:06:49,913 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 05:06:49,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:06:49,975 INFO L256 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 05:06:49,981 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:06:49,990 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-28 05:06:49,990 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:06:49,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [114146803] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:06:49,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 05:06:49,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-28 05:06:49,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363992260] [2024-11-28 05:06:49,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:06:49,999 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 05:06:49,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:06:50,019 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 05:06:50,020 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 05:06:50,023 INFO L87 Difference]: Start difference. First operand has 227 states, 117 states have (on average 1.9145299145299146) internal successors, (224), 219 states have internal predecessors, (224), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 05:06:50,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:06:50,068 INFO L93 Difference]: Finished difference Result 425 states and 468 transitions. [2024-11-28 05:06:50,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 05:06:50,070 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 14 [2024-11-28 05:06:50,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:06:50,083 INFO L225 Difference]: With dead ends: 425 [2024-11-28 05:06:50,083 INFO L226 Difference]: Without dead ends: 195 [2024-11-28 05:06:50,088 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 15 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 05:06:50,092 INFO L435 NwaCegarLoop]: 204 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, 204 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 05:06:50,093 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 05:06:50,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2024-11-28 05:06:50,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 195. [2024-11-28 05:06:50,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 112 states have (on average 1.6875) internal successors, (189), 188 states have internal predecessors, (189), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-28 05:06:50,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 197 transitions. [2024-11-28 05:06:50,157 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 197 transitions. Word has length 14 [2024-11-28 05:06:50,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:06:50,158 INFO L471 AbstractCegarLoop]: Abstraction has 195 states and 197 transitions. [2024-11-28 05:06:50,158 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 05:06:50,159 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 197 transitions. [2024-11-28 05:06:50,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-28 05:06:50,160 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:06:50,160 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:06:50,169 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 05:06:50,364 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:06:50,364 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-11-28 05:06:50,365 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:06:50,365 INFO L85 PathProgramCache]: Analyzing trace with hash -806667280, now seen corresponding path program 1 times [2024-11-28 05:06:50,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:06:50,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909627961] [2024-11-28 05:06:50,365 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:06:50,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:06:50,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:06:50,487 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 05:06:50,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:06:50,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909627961] [2024-11-28 05:06:50,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909627961] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:06:50,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:06:50,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 05:06:50,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760208299] [2024-11-28 05:06:50,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:06:50,490 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:06:50,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:06:50,491 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:06:50,492 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:06:50,492 INFO L87 Difference]: Start difference. First operand 195 states and 197 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 05:06:51,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:06:51,121 INFO L93 Difference]: Finished difference Result 355 states and 363 transitions. [2024-11-28 05:06:51,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:06:51,122 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 14 [2024-11-28 05:06:51,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:06:51,124 INFO L225 Difference]: With dead ends: 355 [2024-11-28 05:06:51,124 INFO L226 Difference]: Without dead ends: 291 [2024-11-28 05:06:51,125 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 05:06:51,126 INFO L435 NwaCegarLoop]: 108 mSDtfsCounter, 98 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 05:06:51,126 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 137 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 05:06:51,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2024-11-28 05:06:51,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 285. [2024-11-28 05:06:51,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 201 states have (on average 1.4328358208955223) internal successors, (288), 277 states have internal predecessors, (288), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-28 05:06:51,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 298 transitions. [2024-11-28 05:06:51,144 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 298 transitions. Word has length 14 [2024-11-28 05:06:51,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:06:51,145 INFO L471 AbstractCegarLoop]: Abstraction has 285 states and 298 transitions. [2024-11-28 05:06:51,145 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 05:06:51,145 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 298 transitions. [2024-11-28 05:06:51,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-28 05:06:51,146 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:06:51,146 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-28 05:06:51,147 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 05:06:51,147 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-11-28 05:06:51,147 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:06:51,147 INFO L85 PathProgramCache]: Analyzing trace with hash -1914181706, now seen corresponding path program 1 times [2024-11-28 05:06:51,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:06:51,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874473193] [2024-11-28 05:06:51,148 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:06:51,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:06:51,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:06:51,305 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 05:06:51,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:06:51,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874473193] [2024-11-28 05:06:51,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874473193] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:06:51,306 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:06:51,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 05:06:51,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455724693] [2024-11-28 05:06:51,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:06:51,307 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:06:51,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:06:51,307 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:06:51,307 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:06:51,308 INFO L87 Difference]: Start difference. First operand 285 states and 298 transitions. Second operand has 3 states, 2 states have (on average 22.5) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 05:06:51,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:06:51,412 INFO L93 Difference]: Finished difference Result 309 states and 316 transitions. [2024-11-28 05:06:51,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:06:51,413 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 22.5) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 52 [2024-11-28 05:06:51,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:06:51,415 INFO L225 Difference]: With dead ends: 309 [2024-11-28 05:06:51,415 INFO L226 Difference]: Without dead ends: 302 [2024-11-28 05:06:51,415 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 05:06:51,416 INFO L435 NwaCegarLoop]: 184 mSDtfsCounter, 68 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:06:51,420 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 359 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 05:06:51,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2024-11-28 05:06:51,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 284. [2024-11-28 05:06:51,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 284 states, 200 states have (on average 1.405) internal successors, (281), 276 states have internal predecessors, (281), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-28 05:06:51,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 291 transitions. [2024-11-28 05:06:51,481 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 291 transitions. Word has length 52 [2024-11-28 05:06:51,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:06:51,482 INFO L471 AbstractCegarLoop]: Abstraction has 284 states and 291 transitions. [2024-11-28 05:06:51,482 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 22.5) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 05:06:51,482 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 291 transitions. [2024-11-28 05:06:51,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-28 05:06:51,483 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:06:51,484 INFO L218 NwaCegarLoop]: trace histogram [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 05:06:51,484 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 05:06:51,484 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-11-28 05:06:51,484 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:06:51,485 INFO L85 PathProgramCache]: Analyzing trace with hash -1282612840, now seen corresponding path program 1 times [2024-11-28 05:06:51,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:06:51,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877580048] [2024-11-28 05:06:51,486 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:06:51,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:06:51,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:06:51,736 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 05:06:51,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:06:51,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877580048] [2024-11-28 05:06:51,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877580048] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:06:51,739 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:06:51,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:06:51,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291013063] [2024-11-28 05:06:51,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:06:51,740 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 05:06:51,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:06:51,740 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 05:06:51,740 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 05:06:51,741 INFO L87 Difference]: Start difference. First operand 284 states and 291 transitions. Second operand has 4 states, 3 states have (on average 15.666666666666666) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 05:06:52,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:06:52,009 INFO L93 Difference]: Finished difference Result 304 states and 309 transitions. [2024-11-28 05:06:52,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 05:06:52,010 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 15.666666666666666) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 54 [2024-11-28 05:06:52,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:06:52,011 INFO L225 Difference]: With dead ends: 304 [2024-11-28 05:06:52,012 INFO L226 Difference]: Without dead ends: 261 [2024-11-28 05:06:52,013 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 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 05:06:52,018 INFO L435 NwaCegarLoop]: 109 mSDtfsCounter, 150 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 05:06:52,019 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 284 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 05:06:52,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2024-11-28 05:06:52,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 243. [2024-11-28 05:06:52,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 159 states have (on average 1.4968553459119496) internal successors, (238), 235 states have internal predecessors, (238), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-28 05:06:52,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 248 transitions. [2024-11-28 05:06:52,043 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 248 transitions. Word has length 54 [2024-11-28 05:06:52,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:06:52,043 INFO L471 AbstractCegarLoop]: Abstraction has 243 states and 248 transitions. [2024-11-28 05:06:52,043 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 15.666666666666666) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 05:06:52,043 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 248 transitions. [2024-11-28 05:06:52,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-28 05:06:52,045 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:06:52,045 INFO L218 NwaCegarLoop]: trace histogram [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 05:06:52,045 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 05:06:52,045 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-11-28 05:06:52,046 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:06:52,046 INFO L85 PathProgramCache]: Analyzing trace with hash 1257175529, now seen corresponding path program 1 times [2024-11-28 05:06:52,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:06:52,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187867403] [2024-11-28 05:06:52,048 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:06:52,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:06:52,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:06:52,239 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 05:06:52,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:06:52,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187867403] [2024-11-28 05:06:52,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187867403] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:06:52,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:06:52,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 05:06:52,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471810334] [2024-11-28 05:06:52,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:06:52,240 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:06:52,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:06:52,241 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:06:52,241 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:06:52,241 INFO L87 Difference]: Start difference. First operand 243 states and 248 transitions. Second operand has 3 states, 2 states have (on average 26.5) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 05:06:52,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:06:52,273 INFO L93 Difference]: Finished difference Result 245 states and 248 transitions. [2024-11-28 05:06:52,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:06:52,273 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), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 62 [2024-11-28 05:06:52,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:06:52,275 INFO L225 Difference]: With dead ends: 245 [2024-11-28 05:06:52,276 INFO L226 Difference]: Without dead ends: 243 [2024-11-28 05:06:52,276 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 05:06:52,278 INFO L435 NwaCegarLoop]: 194 mSDtfsCounter, 1 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 383 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 05:06:52,279 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 383 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 05:06:52,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2024-11-28 05:06:52,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 243. [2024-11-28 05:06:52,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 159 states have (on average 1.4842767295597483) internal successors, (236), 235 states have internal predecessors, (236), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-28 05:06:52,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 246 transitions. [2024-11-28 05:06:52,299 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 246 transitions. Word has length 62 [2024-11-28 05:06:52,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:06:52,300 INFO L471 AbstractCegarLoop]: Abstraction has 243 states and 246 transitions. [2024-11-28 05:06:52,301 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), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 05:06:52,301 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 246 transitions. [2024-11-28 05:06:52,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-28 05:06:52,304 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:06:52,305 INFO L218 NwaCegarLoop]: trace histogram [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 05:06:52,305 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 05:06:52,305 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr47ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-11-28 05:06:52,305 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:06:52,305 INFO L85 PathProgramCache]: Analyzing trace with hash -706103676, now seen corresponding path program 1 times [2024-11-28 05:06:52,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:06:52,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695175046] [2024-11-28 05:06:52,306 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:06:52,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:06:52,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 05:06:52,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1064901867] [2024-11-28 05:06:52,360 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:06:52,360 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:06:52,360 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:06:52,367 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:06:52,382 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 05:06:52,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:06:52,455 INFO L256 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 05:06:52,457 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:06:52,618 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 05:06:52,619 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:06:52,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:06:52,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695175046] [2024-11-28 05:06:52,619 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 05:06:52,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1064901867] [2024-11-28 05:06:52,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1064901867] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:06:52,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:06:52,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:06:52,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823473375] [2024-11-28 05:06:52,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:06:52,620 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 05:06:52,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:06:52,621 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 05:06:52,621 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 05:06:52,621 INFO L87 Difference]: Start difference. First operand 243 states and 246 transitions. Second operand has 4 states, 3 states have (on average 19.333333333333332) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 05:06:53,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:06:53,255 INFO L93 Difference]: Finished difference Result 417 states and 430 transitions. [2024-11-28 05:06:53,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 05:06:53,255 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 19.333333333333332) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 67 [2024-11-28 05:06:53,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:06:53,257 INFO L225 Difference]: With dead ends: 417 [2024-11-28 05:06:53,257 INFO L226 Difference]: Without dead ends: 352 [2024-11-28 05:06:53,258 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 05:06:53,261 INFO L435 NwaCegarLoop]: 101 mSDtfsCounter, 107 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 05:06:53,262 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 158 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 484 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 05:06:53,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2024-11-28 05:06:53,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 346. [2024-11-28 05:06:53,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 260 states have (on average 1.35) internal successors, (351), 336 states have internal predecessors, (351), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-28 05:06:53,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 365 transitions. [2024-11-28 05:06:53,282 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 365 transitions. Word has length 67 [2024-11-28 05:06:53,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:06:53,282 INFO L471 AbstractCegarLoop]: Abstraction has 346 states and 365 transitions. [2024-11-28 05:06:53,282 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 19.333333333333332) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 05:06:53,282 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 365 transitions. [2024-11-28 05:06:53,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-28 05:06:53,283 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:06:53,284 INFO L218 NwaCegarLoop]: trace histogram [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 05:06:53,295 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-28 05:06:53,484 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:06:53,484 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr54ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-11-28 05:06:53,485 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:06:53,486 INFO L85 PathProgramCache]: Analyzing trace with hash 1862699829, now seen corresponding path program 1 times [2024-11-28 05:06:53,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:06:53,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376902593] [2024-11-28 05:06:53,486 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:06:53,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:06:53,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:06:53,627 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 05:06:53,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:06:53,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376902593] [2024-11-28 05:06:53,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376902593] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:06:53,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:06:53,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:06:53,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778464810] [2024-11-28 05:06:53,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:06:53,628 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 05:06:53,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:06:53,629 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 05:06:53,629 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 05:06:53,629 INFO L87 Difference]: Start difference. First operand 346 states and 365 transitions. Second operand has 4 states, 3 states have (on average 21.666666666666668) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 05:06:54,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:06:54,043 INFO L93 Difference]: Finished difference Result 347 states and 365 transitions. [2024-11-28 05:06:54,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:06:54,043 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 21.666666666666668) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 74 [2024-11-28 05:06:54,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:06:54,045 INFO L225 Difference]: With dead ends: 347 [2024-11-28 05:06:54,045 INFO L226 Difference]: Without dead ends: 346 [2024-11-28 05:06:54,046 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 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 05:06:54,046 INFO L435 NwaCegarLoop]: 142 mSDtfsCounter, 53 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 338 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 05:06:54,047 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 338 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 05:06:54,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2024-11-28 05:06:54,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 346. [2024-11-28 05:06:54,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 260 states have (on average 1.3461538461538463) internal successors, (350), 336 states have internal predecessors, (350), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-28 05:06:54,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 364 transitions. [2024-11-28 05:06:54,059 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 364 transitions. Word has length 74 [2024-11-28 05:06:54,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:06:54,059 INFO L471 AbstractCegarLoop]: Abstraction has 346 states and 364 transitions. [2024-11-28 05:06:54,059 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 21.666666666666668) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 05:06:54,059 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 364 transitions. [2024-11-28 05:06:54,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-28 05:06:54,060 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:06:54,060 INFO L218 NwaCegarLoop]: trace histogram [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 05:06:54,061 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 05:06:54,061 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr55ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-11-28 05:06:54,061 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:06:54,061 INFO L85 PathProgramCache]: Analyzing trace with hash 1909120012, now seen corresponding path program 1 times [2024-11-28 05:06:54,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:06:54,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245044293] [2024-11-28 05:06:54,062 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:06:54,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:06:54,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:06:54,171 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 05:06:54,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:06:54,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245044293] [2024-11-28 05:06:54,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245044293] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:06:54,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:06:54,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:06:54,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886062684] [2024-11-28 05:06:54,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:06:54,174 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 05:06:54,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:06:54,175 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 05:06:54,175 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 05:06:54,175 INFO L87 Difference]: Start difference. First operand 346 states and 364 transitions. Second operand has 4 states, 3 states have (on average 22.0) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 05:06:54,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:06:54,573 INFO L93 Difference]: Finished difference Result 347 states and 364 transitions. [2024-11-28 05:06:54,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 05:06:54,573 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 22.0) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 75 [2024-11-28 05:06:54,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:06:54,575 INFO L225 Difference]: With dead ends: 347 [2024-11-28 05:06:54,575 INFO L226 Difference]: Without dead ends: 346 [2024-11-28 05:06:54,576 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 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 05:06:54,576 INFO L435 NwaCegarLoop]: 151 mSDtfsCounter, 46 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 347 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 05:06:54,576 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 347 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 05:06:54,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2024-11-28 05:06:54,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 346. [2024-11-28 05:06:54,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 260 states have (on average 1.3423076923076922) internal successors, (349), 336 states have internal predecessors, (349), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-28 05:06:54,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 363 transitions. [2024-11-28 05:06:54,594 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 363 transitions. Word has length 75 [2024-11-28 05:06:54,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:06:54,594 INFO L471 AbstractCegarLoop]: Abstraction has 346 states and 363 transitions. [2024-11-28 05:06:54,595 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 22.0) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 05:06:54,595 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 363 transitions. [2024-11-28 05:06:54,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-28 05:06:54,596 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:06:54,596 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-28 05:06:54,596 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 05:06:54,597 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-11-28 05:06:54,597 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:06:54,597 INFO L85 PathProgramCache]: Analyzing trace with hash 14779559, now seen corresponding path program 1 times [2024-11-28 05:06:54,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:06:54,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452629285] [2024-11-28 05:06:54,598 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:06:54,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:06:54,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 05:06:54,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1919900794] [2024-11-28 05:06:54,645 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:06:54,645 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:06:54,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:06:54,647 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:06:54,651 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 05:06:54,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:06:54,720 INFO L256 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-28 05:06:54,725 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:06:55,142 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 05:06:55,142 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:06:55,542 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 05:06:55,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:06:55,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452629285] [2024-11-28 05:06:55,542 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 05:06:55,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1919900794] [2024-11-28 05:06:55,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1919900794] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:06:55,542 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 05:06:55,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2024-11-28 05:06:55,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214567520] [2024-11-28 05:06:55,543 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 05:06:55,543 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 05:06:55,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:06:55,544 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 05:06:55,544 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-28 05:06:55,544 INFO L87 Difference]: Start difference. First operand 346 states and 363 transitions. Second operand has 8 states, 7 states have (on average 28.857142857142858) internal successors, (202), 8 states have internal predecessors, (202), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-28 05:06:57,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:06:57,221 INFO L93 Difference]: Finished difference Result 370 states and 381 transitions. [2024-11-28 05:06:57,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 05:06:57,222 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 28.857142857142858) internal successors, (202), 8 states have internal predecessors, (202), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 114 [2024-11-28 05:06:57,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:06:57,223 INFO L225 Difference]: With dead ends: 370 [2024-11-28 05:06:57,223 INFO L226 Difference]: Without dead ends: 361 [2024-11-28 05:06:57,224 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 220 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2024-11-28 05:06:57,224 INFO L435 NwaCegarLoop]: 55 mSDtfsCounter, 387 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 771 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 387 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 792 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 771 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-28 05:06:57,225 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [387 Valid, 151 Invalid, 792 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 771 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-28 05:06:57,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2024-11-28 05:06:57,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 350. [2024-11-28 05:06:57,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 350 states, 267 states have (on average 1.3108614232209739) internal successors, (350), 340 states have internal predecessors, (350), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-28 05:06:57,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 364 transitions. [2024-11-28 05:06:57,239 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 364 transitions. Word has length 114 [2024-11-28 05:06:57,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:06:57,239 INFO L471 AbstractCegarLoop]: Abstraction has 350 states and 364 transitions. [2024-11-28 05:06:57,239 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 28.857142857142858) internal successors, (202), 8 states have internal predecessors, (202), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-28 05:06:57,239 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 364 transitions. [2024-11-28 05:06:57,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-28 05:06:57,241 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:06:57,241 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-28 05:06:57,250 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-28 05:06:57,441 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:06:57,442 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-11-28 05:06:57,442 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:06:57,443 INFO L85 PathProgramCache]: Analyzing trace with hash 1318258249, now seen corresponding path program 1 times [2024-11-28 05:06:57,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:06:57,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213021318] [2024-11-28 05:06:57,443 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:06:57,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:06:57,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 05:06:57,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1843487088] [2024-11-28 05:06:57,486 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:06:57,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:06:57,487 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:06:57,489 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:06:57,491 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 05:06:57,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:06:57,547 INFO L256 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-28 05:06:57,550 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:06:58,035 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 05:06:58,035 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:07:00,445 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 4 proven. 37 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 05:07:00,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:07:00,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213021318] [2024-11-28 05:07:00,446 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 05:07:00,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1843487088] [2024-11-28 05:07:00,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1843487088] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:07:00,447 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 05:07:00,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 8 [2024-11-28 05:07:00,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099241073] [2024-11-28 05:07:00,447 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 05:07:00,448 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 05:07:00,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:07:00,449 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 05:07:00,449 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2024-11-28 05:07:00,449 INFO L87 Difference]: Start difference. First operand 350 states and 364 transitions. Second operand has 9 states, 8 states have (on average 25.75) internal successors, (206), 9 states have internal predecessors, (206), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-28 05:07:02,921 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 05:07:07,408 WARN L539 Checker$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 05:07:13,848 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.21s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 05:07:20,393 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.91s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 05:07:24,395 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 05:07:29,151 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.62s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 05:07:33,734 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 05:07:38,722 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.85s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 05:07:42,724 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 05:07:47,935 WARN L539 Checker$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 05:07:51,077 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 05:07:52,396 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 05:07:57,131 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 05:08:02,233 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 05:08:07,453 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.90s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 05:08:10,337 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 05:08:12,603 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 05:08:19,530 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.74s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 05:08:23,532 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 05:08:39,800 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 16.24s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 05:08:43,772 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.43s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 05:08:52,264 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 05:08:58,484 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 05:09:02,486 WARN L539 Checker$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 05:09:07,497 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 05:09:12,331 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.82s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 05:09:16,826 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 05:09:19,882 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 05:09:25,134 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 05:09:32,364 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 6.25s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 05:09:36,369 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 05:09:40,517 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 05:09:44,522 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 05:09:58,566 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 13.76s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 05:10:02,567 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 05:10:05,489 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.66s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 05:10:17,432 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 11.62s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 05:10:21,914 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 05:10:24,033 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 05:10:27,216 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.55s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 05:10:31,869 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.65s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 05:10:36,556 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.27s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 05:10:40,220 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 05:10:44,221 WARN L539 Checker$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 05:10:44,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:10:44,233 INFO L93 Difference]: Finished difference Result 361 states and 369 transitions. [2024-11-28 05:10:44,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 05:10:44,234 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 25.75) internal successors, (206), 9 states have internal predecessors, (206), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 116 [2024-11-28 05:10:44,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:10:44,236 INFO L225 Difference]: With dead ends: 361 [2024-11-28 05:10:44,236 INFO L226 Difference]: Without dead ends: 359 [2024-11-28 05:10:44,236 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 223 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=90, Unknown=0, NotChecked=0, Total=156 [2024-11-28 05:10:44,237 INFO L435 NwaCegarLoop]: 28 mSDtfsCounter, 398 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 944 mSolverCounterSat, 119 mSolverCounterUnsat, 32 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 223.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 402 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 1095 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 944 IncrementalHoareTripleChecker+Invalid, 32 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 223.5s IncrementalHoareTripleChecker+Time [2024-11-28 05:10:44,237 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [402 Valid, 108 Invalid, 1095 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [119 Valid, 944 Invalid, 32 Unknown, 0 Unchecked, 223.5s Time] [2024-11-28 05:10:44,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2024-11-28 05:10:44,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 348. [2024-11-28 05:10:44,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 267 states have (on average 1.2958801498127341) internal successors, (346), 338 states have internal predecessors, (346), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-28 05:10:44,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 360 transitions. [2024-11-28 05:10:44,251 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 360 transitions. Word has length 116 [2024-11-28 05:10:44,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:10:44,252 INFO L471 AbstractCegarLoop]: Abstraction has 348 states and 360 transitions. [2024-11-28 05:10:44,252 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 25.75) internal successors, (206), 9 states have internal predecessors, (206), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-28 05:10:44,252 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 360 transitions. [2024-11-28 05:10:44,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-28 05:10:44,253 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:10:44,254 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 05:10:44,264 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-28 05:10:44,454 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:10:44,454 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-11-28 05:10:44,455 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:10:44,455 INFO L85 PathProgramCache]: Analyzing trace with hash -1562255974, now seen corresponding path program 1 times [2024-11-28 05:10:44,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:10:44,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417960429] [2024-11-28 05:10:44,455 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:10:44,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:10:44,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:10:44,707 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-28 05:10:44,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:10:44,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417960429] [2024-11-28 05:10:44,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417960429] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:10:44,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [62001223] [2024-11-28 05:10:44,708 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:10:44,708 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:10:44,708 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:10:44,710 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:10:44,712 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 05:10:44,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:10:44,774 INFO L256 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 05:10:44,777 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:10:44,935 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-28 05:10:44,935 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:10:44,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [62001223] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:10:44,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 05:10:44,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2024-11-28 05:10:44,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002012007] [2024-11-28 05:10:44,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:10:44,936 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 05:10:44,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:10:44,937 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 05:10:44,937 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 05:10:44,937 INFO L87 Difference]: Start difference. First operand 348 states and 360 transitions. Second operand has 4 states, 3 states have (on average 36.666666666666664) internal successors, (110), 4 states have internal predecessors, (110), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-28 05:10:44,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:10:44,965 INFO L93 Difference]: Finished difference Result 348 states and 360 transitions. [2024-11-28 05:10:44,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 05:10:44,965 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 36.666666666666664) internal successors, (110), 4 states have internal predecessors, (110), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 124 [2024-11-28 05:10:44,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:10:44,967 INFO L225 Difference]: With dead ends: 348 [2024-11-28 05:10:44,967 INFO L226 Difference]: Without dead ends: 347 [2024-11-28 05:10:44,967 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 123 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 05:10:44,968 INFO L435 NwaCegarLoop]: 230 mSDtfsCounter, 77 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 05:10:44,968 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 364 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 05:10:44,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2024-11-28 05:10:44,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 347. [2024-11-28 05:10:44,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 347 states, 267 states have (on average 1.2883895131086143) internal successors, (344), 337 states have internal predecessors, (344), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-28 05:10:44,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 358 transitions. [2024-11-28 05:10:44,982 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 358 transitions. Word has length 124 [2024-11-28 05:10:44,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:10:44,982 INFO L471 AbstractCegarLoop]: Abstraction has 347 states and 358 transitions. [2024-11-28 05:10:44,982 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 36.666666666666664) internal successors, (110), 4 states have internal predecessors, (110), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-28 05:10:44,983 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 358 transitions. [2024-11-28 05:10:44,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-28 05:10:44,984 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:10:44,984 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-28 05:10:44,994 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-28 05:10:45,189 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:10:45,189 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-11-28 05:10:45,190 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:10:45,190 INFO L85 PathProgramCache]: Analyzing trace with hash -1185294801, now seen corresponding path program 1 times [2024-11-28 05:10:45,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:10:45,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490595712] [2024-11-28 05:10:45,190 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:10:45,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:10:45,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:10:45,345 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-28 05:10:45,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:10:45,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490595712] [2024-11-28 05:10:45,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490595712] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:10:45,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [296004351] [2024-11-28 05:10:45,346 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:10:45,346 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:10:45,347 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:10:45,350 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:10:45,353 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-28 05:10:45,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:10:45,413 INFO L256 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 05:10:45,416 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:10:45,564 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-28 05:10:45,564 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:10:45,748 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-28 05:10:45,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [296004351] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:10:45,748 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 05:10:45,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-11-28 05:10:45,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602468199] [2024-11-28 05:10:45,749 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 05:10:45,749 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 05:10:45,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:10:45,751 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 05:10:45,752 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-28 05:10:45,752 INFO L87 Difference]: Start difference. First operand 347 states and 358 transitions. Second operand has 7 states, 6 states have (on average 43.333333333333336) internal successors, (260), 7 states have internal predecessors, (260), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2024-11-28 05:10:45,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:10:45,808 INFO L93 Difference]: Finished difference Result 527 states and 540 transitions. [2024-11-28 05:10:45,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 05:10:45,809 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 43.333333333333336) internal successors, (260), 7 states have internal predecessors, (260), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) Word has length 125 [2024-11-28 05:10:45,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:10:45,811 INFO L225 Difference]: With dead ends: 527 [2024-11-28 05:10:45,811 INFO L226 Difference]: Without dead ends: 526 [2024-11-28 05:10:45,811 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-28 05:10:45,812 INFO L435 NwaCegarLoop]: 187 mSDtfsCounter, 118 mSDsluCounter, 422 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 609 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 05:10:45,812 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 609 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 05:10:45,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2024-11-28 05:10:45,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 454. [2024-11-28 05:10:45,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 454 states, 372 states have (on average 1.3951612903225807) internal successors, (519), 442 states have internal predecessors, (519), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-28 05:10:45,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 454 states to 454 states and 537 transitions. [2024-11-28 05:10:45,834 INFO L78 Accepts]: Start accepts. Automaton has 454 states and 537 transitions. Word has length 125 [2024-11-28 05:10:45,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:10:45,834 INFO L471 AbstractCegarLoop]: Abstraction has 454 states and 537 transitions. [2024-11-28 05:10:45,834 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 43.333333333333336) internal successors, (260), 7 states have internal predecessors, (260), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2024-11-28 05:10:45,835 INFO L276 IsEmpty]: Start isEmpty. Operand 454 states and 537 transitions. [2024-11-28 05:10:45,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-28 05:10:45,836 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:10:45,837 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-28 05:10:45,846 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-28 05:10:46,037 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:10:46,038 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr47ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-11-28 05:10:46,038 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:10:46,038 INFO L85 PathProgramCache]: Analyzing trace with hash 794196339, now seen corresponding path program 1 times [2024-11-28 05:10:46,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:10:46,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725695447] [2024-11-28 05:10:46,038 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:10:46,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:10:46,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 05:10:46,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [891160319] [2024-11-28 05:10:46,066 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:10:46,066 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:10:46,066 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:10:46,068 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:10:46,072 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-28 05:10:46,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:10:46,142 INFO L256 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 05:10:46,144 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:10:46,313 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-28 05:10:46,313 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:10:46,629 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-28 05:10:46,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:10:46,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725695447] [2024-11-28 05:10:46,629 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 05:10:46,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [891160319] [2024-11-28 05:10:46,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [891160319] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:10:46,630 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 05:10:46,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2024-11-28 05:10:46,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112284442] [2024-11-28 05:10:46,630 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 05:10:46,630 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 05:10:46,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:10:46,631 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 05:10:46,631 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-28 05:10:46,632 INFO L87 Difference]: Start difference. First operand 454 states and 537 transitions. Second operand has 8 states, 7 states have (on average 31.714285714285715) internal successors, (222), 8 states have internal predecessors, (222), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-28 05:10:47,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:10:47,737 INFO L93 Difference]: Finished difference Result 546 states and 616 transitions. [2024-11-28 05:10:47,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 05:10:47,737 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 31.714285714285715) internal successors, (222), 8 states have internal predecessors, (222), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 129 [2024-11-28 05:10:47,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:10:47,741 INFO L225 Difference]: With dead ends: 546 [2024-11-28 05:10:47,741 INFO L226 Difference]: Without dead ends: 481 [2024-11-28 05:10:47,742 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 250 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2024-11-28 05:10:47,743 INFO L435 NwaCegarLoop]: 47 mSDtfsCounter, 570 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 1026 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 573 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 1113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 1026 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 05:10:47,743 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [573 Valid, 178 Invalid, 1113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 1026 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 05:10:47,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2024-11-28 05:10:47,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 468. [2024-11-28 05:10:47,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 468 states, 405 states have (on average 1.2148148148148148) internal successors, (492), 457 states have internal predecessors, (492), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-28 05:10:47,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 468 states and 508 transitions. [2024-11-28 05:10:47,763 INFO L78 Accepts]: Start accepts. Automaton has 468 states and 508 transitions. Word has length 129 [2024-11-28 05:10:47,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:10:47,764 INFO L471 AbstractCegarLoop]: Abstraction has 468 states and 508 transitions. [2024-11-28 05:10:47,764 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 31.714285714285715) internal successors, (222), 8 states have internal predecessors, (222), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-28 05:10:47,764 INFO L276 IsEmpty]: Start isEmpty. Operand 468 states and 508 transitions. [2024-11-28 05:10:47,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-28 05:10:47,765 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:10:47,766 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-28 05:10:47,775 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-28 05:10:47,966 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:10:47,966 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr55ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-11-28 05:10:47,967 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:10:47,967 INFO L85 PathProgramCache]: Analyzing trace with hash -415678469, now seen corresponding path program 1 times [2024-11-28 05:10:47,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:10:47,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096109526] [2024-11-28 05:10:47,967 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:10:47,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:10:47,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 05:10:47,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1462214824] [2024-11-28 05:10:47,993 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:10:47,993 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:10:47,993 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:10:47,997 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:10:48,000 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-28 05:10:48,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:10:48,063 INFO L256 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-28 05:10:48,065 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:10:48,527 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-28 05:10:48,527 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:10:49,644 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-28 05:10:49,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:10:49,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096109526] [2024-11-28 05:10:49,645 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 05:10:49,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1462214824] [2024-11-28 05:10:49,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1462214824] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:10:49,646 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 05:10:49,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 10 [2024-11-28 05:10:49,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512041932] [2024-11-28 05:10:49,646 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 05:10:49,647 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 05:10:49,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:10:49,648 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 05:10:49,648 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2024-11-28 05:10:49,648 INFO L87 Difference]: Start difference. First operand 468 states and 508 transitions. Second operand has 11 states, 10 states have (on average 23.8) internal successors, (238), 11 states have internal predecessors, (238), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-28 05:10:55,245 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 05:10:59,994 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.67s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 05:11:04,797 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.49s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 05:11:09,413 WARN L539 Checker$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 05:11:15,453 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 05:11:15,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:11:15,956 INFO L93 Difference]: Finished difference Result 473 states and 513 transitions. [2024-11-28 05:11:15,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 05:11:15,957 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 23.8) internal successors, (238), 11 states have internal predecessors, (238), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 137 [2024-11-28 05:11:15,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:11:15,959 INFO L225 Difference]: With dead ends: 473 [2024-11-28 05:11:15,959 INFO L226 Difference]: Without dead ends: 472 [2024-11-28 05:11:15,959 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 263 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=72, Invalid=110, Unknown=0, NotChecked=0, Total=182 [2024-11-28 05:11:15,960 INFO L435 NwaCegarLoop]: 27 mSDtfsCounter, 388 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 1136 mSolverCounterSat, 45 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 389 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 1185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 1136 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:11:15,960 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [389 Valid, 137 Invalid, 1185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 1136 Invalid, 4 Unknown, 0 Unchecked, 26.1s Time] [2024-11-28 05:11:15,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2024-11-28 05:11:15,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 467. [2024-11-28 05:11:15,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 467 states, 405 states have (on average 1.2074074074074075) internal successors, (489), 456 states have internal predecessors, (489), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-28 05:11:15,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 505 transitions. [2024-11-28 05:11:15,991 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 505 transitions. Word has length 137 [2024-11-28 05:11:15,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:11:15,991 INFO L471 AbstractCegarLoop]: Abstraction has 467 states and 505 transitions. [2024-11-28 05:11:15,992 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 23.8) internal successors, (238), 11 states have internal predecessors, (238), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-28 05:11:15,992 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 505 transitions. [2024-11-28 05:11:15,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-11-28 05:11:15,993 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:11:15,994 INFO L218 NwaCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:11:16,003 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-28 05:11:16,194 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:11:16,195 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr98ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-11-28 05:11:16,195 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:11:16,195 INFO L85 PathProgramCache]: Analyzing trace with hash -1068033378, now seen corresponding path program 1 times [2024-11-28 05:11:16,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:11:16,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743047546] [2024-11-28 05:11:16,196 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:11:16,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:11:16,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 05:11:16,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [45058106] [2024-11-28 05:11:16,235 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:11:16,235 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:11:16,235 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:11:16,238 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:11:16,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-28 05:11:16,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:11:16,309 INFO L256 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 05:11:16,311 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:11:16,832 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-28 05:11:16,832 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:11:17,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:11:17,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743047546] [2024-11-28 05:11:17,213 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 05:11:17,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [45058106] [2024-11-28 05:11:17,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [45058106] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:11:17,214 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 05:11:17,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2024-11-28 05:11:17,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428901156] [2024-11-28 05:11:17,214 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 05:11:17,214 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 05:11:17,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:11:17,215 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 05:11:17,215 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-28 05:11:17,215 INFO L87 Difference]: Start difference. First operand 467 states and 505 transitions. Second operand has 5 states, 4 states have (on average 38.0) internal successors, (152), 5 states have internal predecessors, (152), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-28 05:11:17,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:11:17,672 INFO L93 Difference]: Finished difference Result 467 states and 505 transitions. [2024-11-28 05:11:17,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 05:11:17,673 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 38.0) internal successors, (152), 5 states have internal predecessors, (152), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 171 [2024-11-28 05:11:17,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:11:17,675 INFO L225 Difference]: With dead ends: 467 [2024-11-28 05:11:17,675 INFO L226 Difference]: Without dead ends: 454 [2024-11-28 05:11:17,676 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 276 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2024-11-28 05:11:17,676 INFO L435 NwaCegarLoop]: 27 mSDtfsCounter, 22 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 422 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 05:11:17,676 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 76 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 422 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 05:11:17,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 454 states. [2024-11-28 05:11:17,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 454 to 454. [2024-11-28 05:11:17,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 454 states, 405 states have (on average 1.1580246913580248) internal successors, (469), 443 states have internal predecessors, (469), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-28 05:11:17,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 454 states to 454 states and 485 transitions. [2024-11-28 05:11:17,699 INFO L78 Accepts]: Start accepts. Automaton has 454 states and 485 transitions. Word has length 171 [2024-11-28 05:11:17,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:11:17,699 INFO L471 AbstractCegarLoop]: Abstraction has 454 states and 485 transitions. [2024-11-28 05:11:17,699 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 38.0) internal successors, (152), 5 states have internal predecessors, (152), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-28 05:11:17,700 INFO L276 IsEmpty]: Start isEmpty. Operand 454 states and 485 transitions. [2024-11-28 05:11:17,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-11-28 05:11:17,701 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:11:17,701 INFO L218 NwaCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:11:17,710 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-28 05:11:17,902 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-28 05:11:17,902 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr99ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-11-28 05:11:17,902 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:11:17,903 INFO L85 PathProgramCache]: Analyzing trace with hash 1250703903, now seen corresponding path program 1 times [2024-11-28 05:11:17,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:11:17,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356402574] [2024-11-28 05:11:17,903 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:11:17,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:11:17,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 05:11:17,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [578731681] [2024-11-28 05:11:17,932 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:11:17,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:11:17,933 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:11:17,935 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:11:17,938 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-28 05:11:18,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:11:18,007 INFO L256 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 05:11:18,009 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:11:18,542 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-28 05:11:18,542 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:11:18,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:11:18,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356402574] [2024-11-28 05:11:18,971 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 05:11:18,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [578731681] [2024-11-28 05:11:18,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [578731681] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:11:18,971 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 05:11:18,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-11-28 05:11:18,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384311457] [2024-11-28 05:11:18,971 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 05:11:18,972 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 05:11:18,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:11:18,972 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 05:11:18,973 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-28 05:11:18,973 INFO L87 Difference]: Start difference. First operand 454 states and 485 transitions. Second operand has 6 states, 5 states have (on average 30.6) internal successors, (153), 6 states have internal predecessors, (153), 4 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-28 05:11:19,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:11:19,541 INFO L93 Difference]: Finished difference Result 458 states and 489 transitions. [2024-11-28 05:11:19,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 05:11:19,541 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 30.6) internal successors, (153), 6 states have internal predecessors, (153), 4 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) Word has length 172 [2024-11-28 05:11:19,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:11:19,543 INFO L225 Difference]: With dead ends: 458 [2024-11-28 05:11:19,543 INFO L226 Difference]: Without dead ends: 412 [2024-11-28 05:11:19,544 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-28 05:11:19,544 INFO L435 NwaCegarLoop]: 64 mSDtfsCounter, 2 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 598 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 598 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 598 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 05:11:19,544 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 128 Invalid, 598 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 598 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 05:11:19,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2024-11-28 05:11:19,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 412. [2024-11-28 05:11:19,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 412 states, 363 states have (on average 1.1735537190082646) internal successors, (426), 401 states have internal predecessors, (426), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-28 05:11:19,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 442 transitions. [2024-11-28 05:11:19,563 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 442 transitions. Word has length 172 [2024-11-28 05:11:19,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:11:19,563 INFO L471 AbstractCegarLoop]: Abstraction has 412 states and 442 transitions. [2024-11-28 05:11:19,564 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 30.6) internal successors, (153), 6 states have internal predecessors, (153), 4 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-28 05:11:19,564 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 442 transitions. [2024-11-28 05:11:19,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-11-28 05:11:19,565 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:11:19,566 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:11:19,575 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-28 05:11:19,766 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-28 05:11:19,766 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-11-28 05:11:19,767 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:11:19,767 INFO L85 PathProgramCache]: Analyzing trace with hash 1155963299, now seen corresponding path program 1 times [2024-11-28 05:11:19,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:11:19,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529812155] [2024-11-28 05:11:19,767 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:11:19,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:11:19,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 05:11:19,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2037881846] [2024-11-28 05:11:19,793 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:11:19,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:11:19,794 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:11:19,797 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:11:19,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-28 05:11:19,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:11:19,868 INFO L256 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-28 05:11:19,871 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:11:20,302 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 0 proven. 138 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-28 05:11:20,303 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:11:20,766 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 0 proven. 138 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-28 05:11:20,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:11:20,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529812155] [2024-11-28 05:11:20,766 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 05:11:20,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2037881846] [2024-11-28 05:11:20,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2037881846] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:11:20,766 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 05:11:20,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2024-11-28 05:11:20,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317741368] [2024-11-28 05:11:20,767 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 05:11:20,767 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 05:11:20,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:11:20,769 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 05:11:20,769 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2024-11-28 05:11:20,770 INFO L87 Difference]: Start difference. First operand 412 states and 442 transitions. Second operand has 12 states, 11 states have (on average 28.90909090909091) internal successors, (318), 12 states have internal predecessors, (318), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-28 05:11:23,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:11:23,782 INFO L93 Difference]: Finished difference Result 537 states and 587 transitions. [2024-11-28 05:11:23,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 05:11:23,782 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 28.90909090909091) internal successors, (318), 12 states have internal predecessors, (318), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 177 [2024-11-28 05:11:23,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:11:23,784 INFO L225 Difference]: With dead ends: 537 [2024-11-28 05:11:23,785 INFO L226 Difference]: Without dead ends: 531 [2024-11-28 05:11:23,785 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 356 GetRequests, 342 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=82, Invalid=158, Unknown=0, NotChecked=0, Total=240 [2024-11-28 05:11:23,785 INFO L435 NwaCegarLoop]: 33 mSDtfsCounter, 458 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 1669 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 460 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 1692 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1669 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-28 05:11:23,786 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [460 Valid, 223 Invalid, 1692 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1669 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-28 05:11:23,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 531 states. [2024-11-28 05:11:23,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 531 to 461. [2024-11-28 05:11:23,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 461 states, 415 states have (on average 1.1734939759036145) internal successors, (487), 450 states have internal predecessors, (487), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-28 05:11:23,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461 states to 461 states and 503 transitions. [2024-11-28 05:11:23,808 INFO L78 Accepts]: Start accepts. Automaton has 461 states and 503 transitions. Word has length 177 [2024-11-28 05:11:23,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:11:23,809 INFO L471 AbstractCegarLoop]: Abstraction has 461 states and 503 transitions. [2024-11-28 05:11:23,809 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 28.90909090909091) internal successors, (318), 12 states have internal predecessors, (318), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-28 05:11:23,809 INFO L276 IsEmpty]: Start isEmpty. Operand 461 states and 503 transitions. [2024-11-28 05:11:23,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2024-11-28 05:11:23,811 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:11:23,811 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-28 05:11:23,820 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-28 05:11:24,016 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-28 05:11:24,016 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-11-28 05:11:24,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:11:24,017 INFO L85 PathProgramCache]: Analyzing trace with hash 1541564390, now seen corresponding path program 1 times [2024-11-28 05:11:24,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:11:24,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923877792] [2024-11-28 05:11:24,017 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:11:24,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:11:24,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 05:11:24,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1259450281] [2024-11-28 05:11:24,054 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:11:24,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:11:24,054 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:11:24,057 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:11:24,061 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-28 05:11:24,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:11:24,142 INFO L256 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-28 05:11:24,144 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:11:24,392 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 0 proven. 166 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-28 05:11:24,392 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:11:24,933 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 0 proven. 166 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-28 05:11:24,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:11:24,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923877792] [2024-11-28 05:11:24,933 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 05:11:24,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1259450281] [2024-11-28 05:11:24,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1259450281] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:11:24,934 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 05:11:24,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2024-11-28 05:11:24,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528359194] [2024-11-28 05:11:24,934 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 05:11:24,934 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 05:11:24,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:11:24,935 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 05:11:24,935 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-11-28 05:11:24,936 INFO L87 Difference]: Start difference. First operand 461 states and 503 transitions. Second operand has 10 states, 9 states have (on average 38.22222222222222) internal successors, (344), 10 states have internal predecessors, (344), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-28 05:11:25,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:11:25,921 INFO L93 Difference]: Finished difference Result 532 states and 573 transitions. [2024-11-28 05:11:25,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 05:11:25,922 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 38.22222222222222) internal successors, (344), 10 states have internal predecessors, (344), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) Word has length 195 [2024-11-28 05:11:25,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:11:25,925 INFO L225 Difference]: With dead ends: 532 [2024-11-28 05:11:25,925 INFO L226 Difference]: Without dead ends: 500 [2024-11-28 05:11:25,925 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 390 GetRequests, 380 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=79, Unknown=0, NotChecked=0, Total=132 [2024-11-28 05:11:25,926 INFO L435 NwaCegarLoop]: 53 mSDtfsCounter, 519 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 1259 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 522 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 1313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 1259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 05:11:25,926 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [522 Valid, 207 Invalid, 1313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 1259 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 05:11:25,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 500 states. [2024-11-28 05:11:25,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 500 to 447. [2024-11-28 05:11:25,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 447 states, 415 states have (on average 1.0819277108433736) internal successors, (449), 436 states have internal predecessors, (449), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-28 05:11:25,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 447 states to 447 states and 465 transitions. [2024-11-28 05:11:25,950 INFO L78 Accepts]: Start accepts. Automaton has 447 states and 465 transitions. Word has length 195 [2024-11-28 05:11:25,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:11:25,951 INFO L471 AbstractCegarLoop]: Abstraction has 447 states and 465 transitions. [2024-11-28 05:11:25,951 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 38.22222222222222) internal successors, (344), 10 states have internal predecessors, (344), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-28 05:11:25,951 INFO L276 IsEmpty]: Start isEmpty. Operand 447 states and 465 transitions. [2024-11-28 05:11:25,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2024-11-28 05:11:25,957 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:11:25,957 INFO L218 NwaCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:11:25,967 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-28 05:11:26,158 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-28 05:11:26,158 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr99ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-11-28 05:11:26,159 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:11:26,159 INFO L85 PathProgramCache]: Analyzing trace with hash 1786136592, now seen corresponding path program 2 times [2024-11-28 05:11:26,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:11:26,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72074271] [2024-11-28 05:11:26,159 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 05:11:26,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:11:26,197 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 05:11:26,197 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 05:11:26,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [366833564] [2024-11-28 05:11:26,198 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 05:11:26,198 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:11:26,198 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:11:26,202 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:11:26,205 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-28 05:11:26,257 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 05:11:26,257 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 05:11:26,259 INFO L256 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 05:11:26,262 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:11:27,162 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-11-28 05:11:27,163 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:11:27,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:11:27,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72074271] [2024-11-28 05:11:27,163 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 05:11:27,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [366833564] [2024-11-28 05:11:27,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [366833564] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:11:27,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:11:27,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 05:11:27,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503717170] [2024-11-28 05:11:27,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:11:27,164 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 05:11:27,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:11:27,165 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 05:11:27,165 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-28 05:11:27,166 INFO L87 Difference]: Start difference. First operand 447 states and 465 transitions. Second operand has 5 states, 4 states have (on average 34.5) internal successors, (138), 5 states have internal predecessors, (138), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 05:11:27,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:11:27,375 INFO L93 Difference]: Finished difference Result 447 states and 465 transitions. [2024-11-28 05:11:27,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 05:11:27,375 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 34.5) internal successors, (138), 5 states have internal predecessors, (138), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 234 [2024-11-28 05:11:27,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:11:27,377 INFO L225 Difference]: With dead ends: 447 [2024-11-28 05:11:27,377 INFO L226 Difference]: Without dead ends: 396 [2024-11-28 05:11:27,378 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 230 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 05:11:27,379 INFO L435 NwaCegarLoop]: 25 mSDtfsCounter, 59 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 05:11:27,379 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 47 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 05:11:27,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2024-11-28 05:11:27,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 396. [2024-11-28 05:11:27,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 396 states, 371 states have (on average 1.064690026954178) internal successors, (395), 386 states have internal predecessors, (395), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-28 05:11:27,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 409 transitions. [2024-11-28 05:11:27,400 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 409 transitions. Word has length 234 [2024-11-28 05:11:27,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:11:27,400 INFO L471 AbstractCegarLoop]: Abstraction has 396 states and 409 transitions. [2024-11-28 05:11:27,400 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 34.5) internal successors, (138), 5 states have internal predecessors, (138), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 05:11:27,400 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 409 transitions. [2024-11-28 05:11:27,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2024-11-28 05:11:27,404 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:11:27,404 INFO L218 NwaCegarLoop]: trace histogram [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, 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, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:11:27,414 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-28 05:11:27,609 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:11:27,610 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr53ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-11-28 05:11:27,610 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:11:27,610 INFO L85 PathProgramCache]: Analyzing trace with hash 1863183607, now seen corresponding path program 1 times [2024-11-28 05:11:27,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:11:27,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319566800] [2024-11-28 05:11:27,610 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:11:27,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:11:27,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 05:11:27,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1175399008] [2024-11-28 05:11:27,646 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:11:27,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:11:27,646 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:11:27,648 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:11:27,652 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-28 05:11:27,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:11:27,752 INFO L256 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 05:11:27,758 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:11:28,089 INFO L134 CoverageAnalysis]: Checked inductivity of 370 backedges. 0 proven. 342 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-28 05:11:28,089 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:11:28,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:11:28,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319566800] [2024-11-28 05:11:28,215 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 05:11:28,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1175399008] [2024-11-28 05:11:28,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1175399008] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:11:28,215 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 05:11:28,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-11-28 05:11:28,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055846605] [2024-11-28 05:11:28,216 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 05:11:28,216 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 05:11:28,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:11:28,217 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 05:11:28,217 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2024-11-28 05:11:28,217 INFO L87 Difference]: Start difference. First operand 396 states and 409 transitions. Second operand has 7 states, 6 states have (on average 39.166666666666664) internal successors, (235), 7 states have internal predecessors, (235), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-28 05:11:28,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:11:28,725 INFO L93 Difference]: Finished difference Result 447 states and 462 transitions. [2024-11-28 05:11:28,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 05:11:28,726 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 39.166666666666664) internal successors, (235), 7 states have internal predecessors, (235), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 259 [2024-11-28 05:11:28,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:11:28,728 INFO L225 Difference]: With dead ends: 447 [2024-11-28 05:11:28,728 INFO L226 Difference]: Without dead ends: 442 [2024-11-28 05:11:28,729 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 272 GetRequests, 265 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2024-11-28 05:11:28,729 INFO L435 NwaCegarLoop]: 28 mSDtfsCounter, 87 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 550 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 550 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 05:11:28,729 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 101 Invalid, 554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 550 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 05:11:28,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2024-11-28 05:11:28,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 422. [2024-11-28 05:11:28,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 422 states, 396 states have (on average 1.0580808080808082) internal successors, (419), 411 states have internal predecessors, (419), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-28 05:11:28,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 422 states and 435 transitions. [2024-11-28 05:11:28,752 INFO L78 Accepts]: Start accepts. Automaton has 422 states and 435 transitions. Word has length 259 [2024-11-28 05:11:28,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:11:28,752 INFO L471 AbstractCegarLoop]: Abstraction has 422 states and 435 transitions. [2024-11-28 05:11:28,753 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 39.166666666666664) internal successors, (235), 7 states have internal predecessors, (235), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-28 05:11:28,753 INFO L276 IsEmpty]: Start isEmpty. Operand 422 states and 435 transitions. [2024-11-28 05:11:28,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2024-11-28 05:11:28,754 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:11:28,754 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 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, 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, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:11:28,764 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-28 05:11:28,955 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:11:28,955 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-11-28 05:11:28,955 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:11:28,956 INFO L85 PathProgramCache]: Analyzing trace with hash -1588818214, now seen corresponding path program 1 times [2024-11-28 05:11:28,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:11:28,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212170191] [2024-11-28 05:11:28,956 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:11:28,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:11:29,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 05:11:29,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1759435563] [2024-11-28 05:11:29,007 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:11:29,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:11:29,007 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:11:29,009 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:11:29,013 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-28 05:11:29,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:11:29,112 INFO L256 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-28 05:11:29,115 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:11:29,447 INFO L134 CoverageAnalysis]: Checked inductivity of 404 backedges. 0 proven. 376 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-28 05:11:29,447 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:11:30,242 INFO L134 CoverageAnalysis]: Checked inductivity of 404 backedges. 0 proven. 376 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-28 05:11:30,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:11:30,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212170191] [2024-11-28 05:11:30,243 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 05:11:30,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1759435563] [2024-11-28 05:11:30,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1759435563] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:11:30,243 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 05:11:30,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2024-11-28 05:11:30,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143033020] [2024-11-28 05:11:30,243 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 05:11:30,244 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 05:11:30,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:11:30,244 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 05:11:30,244 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2024-11-28 05:11:30,245 INFO L87 Difference]: Start difference. First operand 422 states and 435 transitions. Second operand has 12 states, 11 states have (on average 43.63636363636363) internal successors, (480), 12 states have internal predecessors, (480), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2024-11-28 05:11:31,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:11:31,262 INFO L93 Difference]: Finished difference Result 458 states and 466 transitions. [2024-11-28 05:11:31,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 05:11:31,262 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 43.63636363636363) internal successors, (480), 12 states have internal predecessors, (480), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) Word has length 268 [2024-11-28 05:11:31,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:11:31,264 INFO L225 Difference]: With dead ends: 458 [2024-11-28 05:11:31,264 INFO L226 Difference]: Without dead ends: 412 [2024-11-28 05:11:31,265 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 536 GetRequests, 524 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2024-11-28 05:11:31,265 INFO L435 NwaCegarLoop]: 51 mSDtfsCounter, 477 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 1624 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 478 SdHoareTripleChecker+Valid, 294 SdHoareTripleChecker+Invalid, 1636 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1624 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 05:11:31,265 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [478 Valid, 294 Invalid, 1636 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1624 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 05:11:31,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2024-11-28 05:11:31,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 399. [2024-11-28 05:11:31,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 399 states, 374 states have (on average 1.0401069518716577) internal successors, (389), 388 states have internal predecessors, (389), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-28 05:11:31,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 405 transitions. [2024-11-28 05:11:31,287 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 405 transitions. Word has length 268 [2024-11-28 05:11:31,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:11:31,288 INFO L471 AbstractCegarLoop]: Abstraction has 399 states and 405 transitions. [2024-11-28 05:11:31,288 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 43.63636363636363) internal successors, (480), 12 states have internal predecessors, (480), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2024-11-28 05:11:31,288 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 405 transitions. [2024-11-28 05:11:31,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2024-11-28 05:11:31,290 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:11:31,290 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:11:31,300 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-11-28 05:11:31,490 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-11-28 05:11:31,491 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-11-28 05:11:31,491 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:11:31,491 INFO L85 PathProgramCache]: Analyzing trace with hash -1680909316, now seen corresponding path program 2 times [2024-11-28 05:11:31,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:11:31,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630930956] [2024-11-28 05:11:31,492 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 05:11:31,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:11:31,513 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 05:11:31,513 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 05:11:31,564 INFO L134 CoverageAnalysis]: Checked inductivity of 576 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 568 trivial. 0 not checked. [2024-11-28 05:11:31,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:11:31,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630930956] [2024-11-28 05:11:31,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [630930956] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:11:31,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [138612456] [2024-11-28 05:11:31,565 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 05:11:31,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:11:31,565 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:11:31,567 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:11:31,569 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-28 05:11:31,622 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 05:11:31,622 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 05:11:31,623 INFO L256 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 05:11:31,628 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:11:32,015 INFO L134 CoverageAnalysis]: Checked inductivity of 576 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 568 trivial. 0 not checked. [2024-11-28 05:11:32,016 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:11:32,419 INFO L134 CoverageAnalysis]: Checked inductivity of 576 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 568 trivial. 0 not checked. [2024-11-28 05:11:32,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [138612456] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:11:32,420 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 05:11:32,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2024-11-28 05:11:32,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064034231] [2024-11-28 05:11:32,420 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 05:11:32,421 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 05:11:32,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:11:32,421 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 05:11:32,421 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 05:11:32,421 INFO L87 Difference]: Start difference. First operand 399 states and 405 transitions. Second operand has 6 states, 5 states have (on average 26.2) internal successors, (131), 6 states have internal predecessors, (131), 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 05:11:32,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:11:32,461 INFO L93 Difference]: Finished difference Result 399 states and 405 transitions. [2024-11-28 05:11:32,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 05:11:32,462 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 26.2) internal successors, (131), 6 states have internal predecessors, (131), 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 311 [2024-11-28 05:11:32,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:11:32,463 INFO L225 Difference]: With dead ends: 399 [2024-11-28 05:11:32,464 INFO L226 Difference]: Without dead ends: 398 [2024-11-28 05:11:32,464 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 625 GetRequests, 619 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-11-28 05:11:32,466 INFO L435 NwaCegarLoop]: 119 mSDtfsCounter, 206 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 05:11:32,467 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 299 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 05:11:32,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2024-11-28 05:11:32,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 398. [2024-11-28 05:11:32,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 398 states, 374 states have (on average 1.0374331550802138) internal successors, (388), 387 states have internal predecessors, (388), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-28 05:11:32,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 404 transitions. [2024-11-28 05:11:32,490 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 404 transitions. Word has length 311 [2024-11-28 05:11:32,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:11:32,491 INFO L471 AbstractCegarLoop]: Abstraction has 398 states and 404 transitions. [2024-11-28 05:11:32,491 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 26.2) internal successors, (131), 6 states have internal predecessors, (131), 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 05:11:32,491 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 404 transitions. [2024-11-28 05:11:32,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 322 [2024-11-28 05:11:32,493 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:11:32,493 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:11:32,502 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2024-11-28 05:11:32,697 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-11-28 05:11:32,697 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr53ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-11-28 05:11:32,697 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:11:32,698 INFO L85 PathProgramCache]: Analyzing trace with hash -1882339354, now seen corresponding path program 2 times [2024-11-28 05:11:32,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:11:32,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285933130] [2024-11-28 05:11:32,698 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 05:11:32,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:11:32,737 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 05:11:32,737 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 05:11:32,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1415200315] [2024-11-28 05:11:32,739 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 05:11:32,739 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:11:32,739 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:11:32,741 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:11:32,750 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-28 05:11:32,820 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 05:11:32,820 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 05:11:32,821 INFO L256 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 05:11:32,824 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:11:32,967 INFO L134 CoverageAnalysis]: Checked inductivity of 616 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-28 05:11:32,968 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:11:32,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:11:32,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285933130] [2024-11-28 05:11:32,968 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 05:11:32,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1415200315] [2024-11-28 05:11:32,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1415200315] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:11:32,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:11:32,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:11:32,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209390544] [2024-11-28 05:11:32,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:11:32,971 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 05:11:32,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:11:32,971 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 05:11:32,971 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 05:11:32,972 INFO L87 Difference]: Start difference. First operand 398 states and 404 transitions. Second operand has 4 states, 3 states have (on average 33.333333333333336) internal successors, (100), 4 states have internal predecessors, (100), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-28 05:11:33,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:11:33,238 INFO L93 Difference]: Finished difference Result 398 states and 404 transitions. [2024-11-28 05:11:33,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 05:11:33,239 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 33.333333333333336) internal successors, (100), 4 states have internal predecessors, (100), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 321 [2024-11-28 05:11:33,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:11:33,240 INFO L225 Difference]: With dead ends: 398 [2024-11-28 05:11:33,240 INFO L226 Difference]: Without dead ends: 393 [2024-11-28 05:11:33,241 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 320 GetRequests, 318 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 05:11:33,241 INFO L435 NwaCegarLoop]: 22 mSDtfsCounter, 72 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 05:11:33,241 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 46 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 05:11:33,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2024-11-28 05:11:33,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 393. [2024-11-28 05:11:33,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 374 states have (on average 1.0240641711229947) internal successors, (383), 382 states have internal predecessors, (383), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-28 05:11:33,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 399 transitions. [2024-11-28 05:11:33,262 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 399 transitions. Word has length 321 [2024-11-28 05:11:33,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:11:33,263 INFO L471 AbstractCegarLoop]: Abstraction has 393 states and 399 transitions. [2024-11-28 05:11:33,263 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 33.333333333333336) internal successors, (100), 4 states have internal predecessors, (100), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-28 05:11:33,263 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 399 transitions. [2024-11-28 05:11:33,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335 [2024-11-28 05:11:33,265 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:11:33,265 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:11:33,274 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2024-11-28 05:11:33,465 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-11-28 05:11:33,466 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-11-28 05:11:33,466 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:11:33,466 INFO L85 PathProgramCache]: Analyzing trace with hash 30601743, now seen corresponding path program 1 times [2024-11-28 05:11:33,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:11:33,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326635065] [2024-11-28 05:11:33,467 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:11:33,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:11:33,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 05:11:33,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2079967666] [2024-11-28 05:11:33,509 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:11:33,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:11:33,509 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:11:33,511 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:11:33,519 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-28 05:11:33,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:11:33,651 INFO L256 TraceCheckSpWp]: Trace formula consists of 418 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-28 05:11:33,654 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:11:34,033 INFO L134 CoverageAnalysis]: Checked inductivity of 679 backedges. 0 proven. 635 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-28 05:11:34,033 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:11:35,279 INFO L134 CoverageAnalysis]: Checked inductivity of 679 backedges. 0 proven. 635 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-28 05:11:35,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:11:35,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326635065] [2024-11-28 05:11:35,280 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 05:11:35,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2079967666] [2024-11-28 05:11:35,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2079967666] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:11:35,280 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 05:11:35,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2024-11-28 05:11:35,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771553316] [2024-11-28 05:11:35,280 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 05:11:35,281 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 05:11:35,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:11:35,282 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 05:11:35,282 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2024-11-28 05:11:35,282 INFO L87 Difference]: Start difference. First operand 393 states and 399 transitions. Second operand has 14 states, 13 states have (on average 46.30769230769231) internal successors, (602), 14 states have internal predecessors, (602), 11 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 11 states have call predecessors, (12), 11 states have call successors, (12) [2024-11-28 05:11:41,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:11:41,947 INFO L93 Difference]: Finished difference Result 911 states and 963 transitions. [2024-11-28 05:11:41,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 05:11:41,948 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 46.30769230769231) internal successors, (602), 14 states have internal predecessors, (602), 11 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 11 states have call predecessors, (12), 11 states have call successors, (12) Word has length 334 [2024-11-28 05:11:41,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:11:41,949 INFO L225 Difference]: With dead ends: 911 [2024-11-28 05:11:41,949 INFO L226 Difference]: Without dead ends: 681 [2024-11-28 05:11:41,950 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 671 GetRequests, 654 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=131, Invalid=211, Unknown=0, NotChecked=0, Total=342 [2024-11-28 05:11:41,950 INFO L435 NwaCegarLoop]: 57 mSDtfsCounter, 1187 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 2506 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1188 SdHoareTripleChecker+Valid, 383 SdHoareTripleChecker+Invalid, 2556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 2506 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-28 05:11:41,950 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1188 Valid, 383 Invalid, 2556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 2506 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-28 05:11:41,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 681 states. [2024-11-28 05:11:41,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 681 to 676. [2024-11-28 05:11:42,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 676 states, 659 states have (on average 1.0106221547799696) internal successors, (666), 660 states have internal predecessors, (666), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-28 05:11:42,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 676 states to 676 states and 692 transitions. [2024-11-28 05:11:42,002 INFO L78 Accepts]: Start accepts. Automaton has 676 states and 692 transitions. Word has length 334 [2024-11-28 05:11:42,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:11:42,003 INFO L471 AbstractCegarLoop]: Abstraction has 676 states and 692 transitions. [2024-11-28 05:11:42,003 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 46.30769230769231) internal successors, (602), 14 states have internal predecessors, (602), 11 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 11 states have call predecessors, (12), 11 states have call successors, (12) [2024-11-28 05:11:42,003 INFO L276 IsEmpty]: Start isEmpty. Operand 676 states and 692 transitions. [2024-11-28 05:11:42,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 364 [2024-11-28 05:11:42,005 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:11:42,005 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:11:42,015 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2024-11-28 05:11:42,210 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-11-28 05:11:42,210 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-11-28 05:11:42,210 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:11:42,210 INFO L85 PathProgramCache]: Analyzing trace with hash -585907472, now seen corresponding path program 2 times [2024-11-28 05:11:42,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:11:42,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12724265] [2024-11-28 05:11:42,211 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 05:11:42,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:11:42,258 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 05:11:42,258 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 05:11:42,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [122178525] [2024-11-28 05:11:42,260 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 05:11:42,260 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:11:42,260 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:11:42,262 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:11:42,265 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-28 05:11:42,433 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 05:11:42,433 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 05:11:42,436 INFO L256 TraceCheckSpWp]: Trace formula consists of 447 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-28 05:11:42,441 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:11:43,215 INFO L134 CoverageAnalysis]: Checked inductivity of 824 backedges. 12 proven. 780 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-28 05:11:43,216 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:11:51,600 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1|))) (or (not (= 0 (mod (+ (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| 10) (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| 7) .cse0 (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| 6)) 12))) (forall ((|v_ULTIMATE.start_main_~y~0#1_275| Int)) (or (< (* |v_ULTIMATE.start_main_~y~0#1_275| |v_ULTIMATE.start_main_~y~0#1_275| |v_ULTIMATE.start_main_~y~0#1_275| |v_ULTIMATE.start_main_~y~0#1_275| |v_ULTIMATE.start_main_~y~0#1_275|) (+ 768614336404564651 (div (+ .cse0 (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| (- 5)) (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| (- 6)) (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| (- 2))) 12))) (< (+ |c_ULTIMATE.start_main_~y~0#1| 1) |v_ULTIMATE.start_main_~y~0#1_275|))))) is different from false [2024-11-28 05:11:51,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:11:51,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12724265] [2024-11-28 05:11:51,618 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 05:11:51,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [122178525] [2024-11-28 05:11:51,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [122178525] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:11:51,618 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 05:11:51,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-28 05:11:51,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134617352] [2024-11-28 05:11:51,619 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 05:11:51,619 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 05:11:51,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:11:51,620 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 05:11:51,620 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=172, Unknown=1, NotChecked=26, Total=240 [2024-11-28 05:11:51,620 INFO L87 Difference]: Start difference. First operand 676 states and 692 transitions. Second operand has 12 states, 11 states have (on average 30.636363636363637) internal successors, (337), 12 states have internal predecessors, (337), 6 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2024-11-28 05:11:53,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:11:53,207 INFO L93 Difference]: Finished difference Result 677 states and 692 transitions. [2024-11-28 05:11:53,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-28 05:11:53,212 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 30.636363636363637) internal successors, (337), 12 states have internal predecessors, (337), 6 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) Word has length 363 [2024-11-28 05:11:53,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:11:53,219 INFO L225 Difference]: With dead ends: 677 [2024-11-28 05:11:53,220 INFO L226 Difference]: Without dead ends: 676 [2024-11-28 05:11:53,220 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 423 GetRequests, 404 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=77, Invalid=306, Unknown=1, NotChecked=36, Total=420 [2024-11-28 05:11:53,221 INFO L435 NwaCegarLoop]: 42 mSDtfsCounter, 76 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 2502 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 353 SdHoareTripleChecker+Invalid, 2507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 2502 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-28 05:11:53,221 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 353 Invalid, 2507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 2502 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-28 05:11:53,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 676 states. [2024-11-28 05:11:53,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 676 to 676. [2024-11-28 05:11:53,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 676 states, 659 states have (on average 1.0091047040971168) internal successors, (665), 660 states have internal predecessors, (665), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-28 05:11:53,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 676 states to 676 states and 691 transitions. [2024-11-28 05:11:53,272 INFO L78 Accepts]: Start accepts. Automaton has 676 states and 691 transitions. Word has length 363 [2024-11-28 05:11:53,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:11:53,273 INFO L471 AbstractCegarLoop]: Abstraction has 676 states and 691 transitions. [2024-11-28 05:11:53,273 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 30.636363636363637) internal successors, (337), 12 states have internal predecessors, (337), 6 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2024-11-28 05:11:53,273 INFO L276 IsEmpty]: Start isEmpty. Operand 676 states and 691 transitions. [2024-11-28 05:11:53,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 426 [2024-11-28 05:11:53,274 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:11:53,275 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:11:53,281 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-11-28 05:11:53,475 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:11:53,475 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-11-28 05:11:53,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:11:53,476 INFO L85 PathProgramCache]: Analyzing trace with hash 1732430559, now seen corresponding path program 3 times [2024-11-28 05:11:53,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:11:53,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858216586] [2024-11-28 05:11:53,476 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 05:11:53,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:11:53,543 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2024-11-28 05:11:53,543 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 05:11:53,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1275642824] [2024-11-28 05:11:53,545 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 05:11:53,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:11:53,545 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:11:53,547 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:11:53,550 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-28 05:11:53,627 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-28 05:11:53,628 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 05:11:53,631 INFO L256 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-28 05:11:53,636 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:12:00,085 WARN L873 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_main_~y~0#1| Int)) (let ((.cse1 (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|)) (.cse0 (+ (* 6 (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|)) (* 2 (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|)) (* 5 (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|))))) (and (<= .cse0 (+ 9223372036854775808 .cse1)) (= (+ (* |c_ULTIMATE.start_main_~x~0#1| 12) .cse1) .cse0)))) is different from true [2024-11-28 05:12:00,107 INFO L134 CoverageAnalysis]: Checked inductivity of 1174 backedges. 330 proven. 0 refuted. 0 times theorem prover too weak. 844 trivial. 0 not checked. [2024-11-28 05:12:00,107 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:12:00,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:12:00,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858216586] [2024-11-28 05:12:00,107 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 05:12:00,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1275642824] [2024-11-28 05:12:00,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1275642824] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:12:00,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:12:00,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 05:12:00,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123226195] [2024-11-28 05:12:00,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:12:00,108 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 05:12:00,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:12:00,108 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 05:12:00,109 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=22, Unknown=1, NotChecked=8, Total=42 [2024-11-28 05:12:00,109 INFO L87 Difference]: Start difference. First operand 676 states and 691 transitions. Second operand has 7 states, 6 states have (on average 20.666666666666668) internal successors, (124), 7 states have internal predecessors, (124), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 05:12:01,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:12:01,095 INFO L93 Difference]: Finished difference Result 676 states and 691 transitions. [2024-11-28 05:12:01,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 05:12:01,095 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 20.666666666666668) internal successors, (124), 7 states have internal predecessors, (124), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 425 [2024-11-28 05:12:01,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:12:01,097 INFO L225 Difference]: With dead ends: 676 [2024-11-28 05:12:01,097 INFO L226 Difference]: Without dead ends: 675 [2024-11-28 05:12:01,097 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 428 GetRequests, 419 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=23, Invalid=52, Unknown=1, NotChecked=14, Total=90 [2024-11-28 05:12:01,097 INFO L435 NwaCegarLoop]: 15 mSDtfsCounter, 59 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 116 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 05:12:01,097 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 65 Invalid, 356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 235 Invalid, 0 Unknown, 116 Unchecked, 0.7s Time] [2024-11-28 05:12:01,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 675 states. [2024-11-28 05:12:01,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 675 to 675. [2024-11-28 05:12:01,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 675 states, 659 states have (on average 1.0015174506828528) internal successors, (660), 659 states have internal predecessors, (660), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-28 05:12:01,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 675 states to 675 states and 686 transitions. [2024-11-28 05:12:01,158 INFO L78 Accepts]: Start accepts. Automaton has 675 states and 686 transitions. Word has length 425 [2024-11-28 05:12:01,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:12:01,158 INFO L471 AbstractCegarLoop]: Abstraction has 675 states and 686 transitions. [2024-11-28 05:12:01,158 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 20.666666666666668) internal successors, (124), 7 states have internal predecessors, (124), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 05:12:01,159 INFO L276 IsEmpty]: Start isEmpty. Operand 675 states and 686 transitions. [2024-11-28 05:12:01,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 719 [2024-11-28 05:12:01,165 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:12:01,166 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:12:01,173 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2024-11-28 05:12:01,369 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-28 05:12:01,369 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-11-28 05:12:01,369 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:12:01,369 INFO L85 PathProgramCache]: Analyzing trace with hash 1330285249, now seen corresponding path program 1 times [2024-11-28 05:12:01,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:12:01,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613365680] [2024-11-28 05:12:01,370 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:12:01,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:12:01,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 05:12:01,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1072033045] [2024-11-28 05:12:01,485 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:12:01,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:12:01,485 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:12:01,487 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:12:01,490 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-28 05:12:01,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:12:01,697 INFO L256 TraceCheckSpWp]: Trace formula consists of 862 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-28 05:12:01,705 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:12:02,629 INFO L134 CoverageAnalysis]: Checked inductivity of 3667 backedges. 0 proven. 3443 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2024-11-28 05:12:02,629 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:12:05,708 INFO L134 CoverageAnalysis]: Checked inductivity of 3667 backedges. 0 proven. 3443 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2024-11-28 05:12:05,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:12:05,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613365680] [2024-11-28 05:12:05,708 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 05:12:05,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1072033045] [2024-11-28 05:12:05,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1072033045] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:12:05,708 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 05:12:05,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2024-11-28 05:12:05,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462540299] [2024-11-28 05:12:05,709 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 05:12:05,710 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-28 05:12:05,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:12:05,712 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-28 05:12:05,712 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2024-11-28 05:12:05,712 INFO L87 Difference]: Start difference. First operand 675 states and 686 transitions. Second operand has 26 states, 25 states have (on average 52.4) internal successors, (1310), 26 states have internal predecessors, (1310), 23 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 23 states have call predecessors, (24), 23 states have call successors, (24) [2024-11-28 05:12:14,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:12:14,770 INFO L93 Difference]: Finished difference Result 1430 states and 1466 transitions. [2024-11-28 05:12:14,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-28 05:12:14,770 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 52.4) internal successors, (1310), 26 states have internal predecessors, (1310), 23 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 23 states have call predecessors, (24), 23 states have call successors, (24) Word has length 718 [2024-11-28 05:12:14,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:12:14,775 INFO L225 Difference]: With dead ends: 1430 [2024-11-28 05:12:14,775 INFO L226 Difference]: Without dead ends: 1429 [2024-11-28 05:12:14,776 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1445 GetRequests, 1410 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=479, Invalid=853, Unknown=0, NotChecked=0, Total=1332 [2024-11-28 05:12:14,776 INFO L435 NwaCegarLoop]: 98 mSDtfsCounter, 322 mSDsluCounter, 991 mSDsCounter, 0 mSdLazyCounter, 8152 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 324 SdHoareTripleChecker+Valid, 1089 SdHoareTripleChecker+Invalid, 8165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 8152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2024-11-28 05:12:14,776 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [324 Valid, 1089 Invalid, 8165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 8152 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2024-11-28 05:12:14,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1429 states. [2024-11-28 05:12:14,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1429 to 1429. [2024-11-28 05:12:14,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1429 states, 1400 states have (on average 1.0007142857142857) internal successors, (1401), 1400 states have internal predecessors, (1401), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-28 05:12:14,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1429 states to 1429 states and 1453 transitions. [2024-11-28 05:12:14,911 INFO L78 Accepts]: Start accepts. Automaton has 1429 states and 1453 transitions. Word has length 718 [2024-11-28 05:12:14,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:12:14,911 INFO L471 AbstractCegarLoop]: Abstraction has 1429 states and 1453 transitions. [2024-11-28 05:12:14,912 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 52.4) internal successors, (1310), 26 states have internal predecessors, (1310), 23 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 23 states have call predecessors, (24), 23 states have call successors, (24) [2024-11-28 05:12:14,912 INFO L276 IsEmpty]: Start isEmpty. Operand 1429 states and 1453 transitions. [2024-11-28 05:12:14,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1525 [2024-11-28 05:12:14,930 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:12:14,931 INFO L218 NwaCegarLoop]: trace histogram [25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:12:14,941 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2024-11-28 05:12:15,131 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-28 05:12:15,131 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-11-28 05:12:15,132 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:12:15,132 INFO L85 PathProgramCache]: Analyzing trace with hash 1653081150, now seen corresponding path program 2 times [2024-11-28 05:12:15,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:12:15,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602392274] [2024-11-28 05:12:15,132 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 05:12:15,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:12:15,307 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 05:12:15,307 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 05:12:15,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [599426719] [2024-11-28 05:12:15,314 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 05:12:15,314 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:12:15,314 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:12:15,316 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:12:15,318 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-28 05:12:15,756 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 05:12:15,756 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 05:12:15,763 INFO L256 TraceCheckSpWp]: Trace formula consists of 1798 conjuncts, 51 conjuncts are in the unsatisfiable core [2024-11-28 05:12:15,781 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:12:17,590 INFO L134 CoverageAnalysis]: Checked inductivity of 17668 backedges. 0 proven. 16560 refuted. 0 times theorem prover too weak. 1108 trivial. 0 not checked. [2024-11-28 05:12:17,590 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:12:25,511 INFO L134 CoverageAnalysis]: Checked inductivity of 17668 backedges. 0 proven. 16560 refuted. 0 times theorem prover too weak. 1108 trivial. 0 not checked. [2024-11-28 05:12:25,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:12:25,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602392274] [2024-11-28 05:12:25,512 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 05:12:25,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [599426719] [2024-11-28 05:12:25,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [599426719] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:12:25,512 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 05:12:25,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 51 [2024-11-28 05:12:25,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504707184] [2024-11-28 05:12:25,513 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 05:12:25,515 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2024-11-28 05:12:25,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:12:25,517 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2024-11-28 05:12:25,518 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=726, Invalid=1926, Unknown=0, NotChecked=0, Total=2652 [2024-11-28 05:12:25,518 INFO L87 Difference]: Start difference. First operand 1429 states and 1453 transitions. Second operand has 52 states, 51 states have (on average 54.745098039215684) internal successors, (2792), 52 states have internal predecessors, (2792), 49 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 49 states have call predecessors, (50), 49 states have call successors, (50) [2024-11-28 05:15:14,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:15:14,805 INFO L93 Difference]: Finished difference Result 2938 states and 3013 transitions. [2024-11-28 05:15:14,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2024-11-28 05:15:14,806 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 51 states have (on average 54.745098039215684) internal successors, (2792), 52 states have internal predecessors, (2792), 49 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 49 states have call predecessors, (50), 49 states have call successors, (50) Word has length 1524 [2024-11-28 05:15:14,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:15:14,815 INFO L225 Difference]: With dead ends: 2938 [2024-11-28 05:15:14,815 INFO L226 Difference]: Without dead ends: 2937 [2024-11-28 05:15:14,819 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3070 GetRequests, 2996 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 279 ImplicationChecksByTransitivity, 156.0s TimeCoverageRelationStatistics Valid=1974, Invalid=3726, Unknown=0, NotChecked=0, Total=5700 [2024-11-28 05:15:14,820 INFO L435 NwaCegarLoop]: 189 mSDtfsCounter, 634 mSDsluCounter, 4092 mSDsCounter, 0 mSdLazyCounter, 34234 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 636 SdHoareTripleChecker+Valid, 4281 SdHoareTripleChecker+Invalid, 34260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 34234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.6s IncrementalHoareTripleChecker+Time [2024-11-28 05:15:14,821 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [636 Valid, 4281 Invalid, 34260 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [26 Valid, 34234 Invalid, 0 Unknown, 0 Unchecked, 15.6s Time] [2024-11-28 05:15:14,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2937 states. [2024-11-28 05:15:15,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2937 to 2937. [2024-11-28 05:15:15,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2937 states, 2882 states have (on average 1.0003469812630117) internal successors, (2883), 2882 states have internal predecessors, (2883), 52 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-28 05:15:15,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2937 states to 2937 states and 2987 transitions. [2024-11-28 05:15:15,094 INFO L78 Accepts]: Start accepts. Automaton has 2937 states and 2987 transitions. Word has length 1524 [2024-11-28 05:15:15,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:15:15,095 INFO L471 AbstractCegarLoop]: Abstraction has 2937 states and 2987 transitions. [2024-11-28 05:15:15,096 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 51 states have (on average 54.745098039215684) internal successors, (2792), 52 states have internal predecessors, (2792), 49 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 49 states have call predecessors, (50), 49 states have call successors, (50) [2024-11-28 05:15:15,096 INFO L276 IsEmpty]: Start isEmpty. Operand 2937 states and 2987 transitions. [2024-11-28 05:15:15,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3137 [2024-11-28 05:15:15,160 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:15:15,161 INFO L218 NwaCegarLoop]: trace histogram [51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 50, 50, 50, 50, 50, 50, 50, 50, 50, 50, 50, 50, 50, 50, 50, 50, 50, 50, 50, 50, 50, 50, 50, 50, 50, 50, 50, 50, 50, 50, 50, 50, 50, 50, 50, 50, 50, 50, 50, 50, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:15:15,169 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2024-11-28 05:15:15,365 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-28 05:15:15,365 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-11-28 05:15:15,366 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:15:15,366 INFO L85 PathProgramCache]: Analyzing trace with hash -83323400, now seen corresponding path program 3 times [2024-11-28 05:15:15,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:15:15,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95220984] [2024-11-28 05:15:15,367 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 05:15:15,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:15:16,271 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 51 check-sat command(s) [2024-11-28 05:15:16,271 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 05:15:16,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1611866156] [2024-11-28 05:15:16,280 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 05:15:16,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:15:16,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:15:16,282 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:15:16,288 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7766f6f2-c34d-4222-a79d-8ca3b82b7854/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process