./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/cohencu-ll_valuebound10.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/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_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/cohencu-ll_valuebound10.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/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_bbd0ab54-0323-40d3-8312-8016d232bed2/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 4e2993d4b0d2c145cb6ebddb0d9f125eb6995ee629adf15e0b0f7e55a8d8a49a --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 23:30:10,207 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 23:30:10,303 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-27 23:30:10,309 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 23:30:10,309 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 23:30:10,340 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 23:30:10,341 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 23:30:10,341 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 23:30:10,342 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 23:30:10,342 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 23:30:10,342 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 23:30:10,342 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 23:30:10,343 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 23:30:10,343 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 23:30:10,343 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 23:30:10,344 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 23:30:10,344 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 23:30:10,344 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 23:30:10,344 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 23:30:10,344 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 23:30:10,344 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 23:30:10,345 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 23:30:10,345 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 23:30:10,345 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 23:30:10,345 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-27 23:30:10,345 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-27 23:30:10,346 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 23:30:10,346 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 23:30:10,346 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 23:30:10,346 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 23:30:10,346 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 23:30:10,346 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:30:10,347 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 23:30:10,347 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 23:30:10,347 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:30:10,347 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 23:30:10,347 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:30:10,347 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 23:30:10,348 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 23:30:10,348 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:30:10,348 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 23:30:10,348 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 23:30:10,348 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 23:30:10,348 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 23:30:10,348 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 23:30:10,349 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 23:30:10,349 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 23:30:10,349 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 23:30:10,349 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 23:30:10,349 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 23:30:10,349 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_bbd0ab54-0323-40d3-8312-8016d232bed2/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 -> 4e2993d4b0d2c145cb6ebddb0d9f125eb6995ee629adf15e0b0f7e55a8d8a49a [2024-11-27 23:30:10,652 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 23:30:10,663 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 23:30:10,666 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 23:30:10,667 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 23:30:10,668 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 23:30:10,669 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/nla-digbench-scaling/cohencu-ll_valuebound10.c [2024-11-27 23:30:13,832 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/data/71ec5d250/53916dbcb62649379ba879b93301d3e1/FLAGc77cf4071 [2024-11-27 23:30:14,129 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 23:30:14,129 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/sv-benchmarks/c/nla-digbench-scaling/cohencu-ll_valuebound10.c [2024-11-27 23:30:14,137 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/data/71ec5d250/53916dbcb62649379ba879b93301d3e1/FLAGc77cf4071 [2024-11-27 23:30:14,152 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/data/71ec5d250/53916dbcb62649379ba879b93301d3e1 [2024-11-27 23:30:14,154 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 23:30:14,156 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 23:30:14,158 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 23:30:14,159 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 23:30:14,165 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 23:30:14,166 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:30:14" (1/1) ... [2024-11-27 23:30:14,167 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@db81c2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:30:14, skipping insertion in model container [2024-11-27 23:30:14,168 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:30:14" (1/1) ... [2024-11-27 23:30:14,186 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 23:30:14,410 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:30:14,426 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 23:30:14,464 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:30:14,481 INFO L204 MainTranslator]: Completed translation [2024-11-27 23:30:14,482 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:30:14 WrapperNode [2024-11-27 23:30:14,483 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 23:30:14,484 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 23:30:14,484 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 23:30:14,484 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 23:30:14,497 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:30:14" (1/1) ... [2024-11-27 23:30:14,505 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:30:14" (1/1) ... [2024-11-27 23:30:14,547 INFO L138 Inliner]: procedures = 14, calls = 20, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 191 [2024-11-27 23:30:14,551 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 23:30:14,552 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 23:30:14,552 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 23:30:14,552 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 23:30:14,563 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:30:14" (1/1) ... [2024-11-27 23:30:14,563 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:30:14" (1/1) ... [2024-11-27 23:30:14,564 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:30:14" (1/1) ... [2024-11-27 23:30:14,586 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]. [2024-11-27 23:30:14,590 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:30:14" (1/1) ... [2024-11-27 23:30:14,590 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:30:14" (1/1) ... [2024-11-27 23:30:14,594 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:30:14" (1/1) ... [2024-11-27 23:30:14,599 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:30:14" (1/1) ... [2024-11-27 23:30:14,601 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:30:14" (1/1) ... [2024-11-27 23:30:14,606 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:30:14" (1/1) ... [2024-11-27 23:30:14,607 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:30:14" (1/1) ... [2024-11-27 23:30:14,612 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 23:30:14,613 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 23:30:14,613 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 23:30:14,613 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 23:30:14,614 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:30:14" (1/1) ... [2024-11-27 23:30:14,625 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:30:14,641 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:30:14,656 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 23:30:14,658 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 23:30:14,676 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 23:30:14,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 23:30:14,677 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 23:30:14,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 23:30:14,677 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-27 23:30:14,677 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-27 23:30:14,737 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 23:30:14,739 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 23:30:15,671 INFO L? ?]: Removed 239 outVars from TransFormulas that were not future-live. [2024-11-27 23:30:15,672 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 23:30:15,699 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 23:30:15,702 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-27 23:30:15,703 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:30:15 BoogieIcfgContainer [2024-11-27 23:30:15,703 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 23:30:15,706 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 23:30:15,707 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 23:30:15,712 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 23:30:15,712 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 11:30:14" (1/3) ... [2024-11-27 23:30:15,714 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@116e2e22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:30:15, skipping insertion in model container [2024-11-27 23:30:15,714 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:30:14" (2/3) ... [2024-11-27 23:30:15,715 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@116e2e22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:30:15, skipping insertion in model container [2024-11-27 23:30:15,715 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:30:15" (3/3) ... [2024-11-27 23:30:15,716 INFO L128 eAbstractionObserver]: Analyzing ICFG cohencu-ll_valuebound10.c [2024-11-27 23:30:15,761 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 23:30:15,762 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG cohencu-ll_valuebound10.c that has 2 procedures, 302 locations, 1 initial locations, 1 loop locations, and 138 error locations. [2024-11-27 23:30:15,844 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 23:30:15,859 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;@4c29f782, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 23:30:15,859 INFO L334 AbstractCegarLoop]: Starting to check reachability of 138 error locations. [2024-11-27 23:30:15,864 INFO L276 IsEmpty]: Start isEmpty. Operand has 302 states, 151 states have (on average 1.9470198675496688) internal successors, (294), 289 states have internal predecessors, (294), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-27 23:30:15,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-27 23:30:15,870 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:30:15,870 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-27 23:30:15,871 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 23:30:15,876 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:30:15,877 INFO L85 PathProgramCache]: Analyzing trace with hash 28693835, now seen corresponding path program 1 times [2024-11-27 23:30:15,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:30:15,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872539815] [2024-11-27 23:30:15,885 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:30:15,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:30:15,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:30:16,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:30:16,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:30:16,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872539815] [2024-11-27 23:30:16,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872539815] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:30:16,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:30:16,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 23:30:16,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672978074] [2024-11-27 23:30:16,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:30:16,031 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-27 23:30:16,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:30:16,050 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-27 23:30:16,051 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 23:30:16,055 INFO L87 Difference]: Start difference. First operand has 302 states, 151 states have (on average 1.9470198675496688) internal successors, (294), 289 states have internal predecessors, (294), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:30:16,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:30:16,098 INFO L93 Difference]: Finished difference Result 593 states and 638 transitions. [2024-11-27 23:30:16,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 23:30:16,101 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-11-27 23:30:16,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:30:16,114 INFO L225 Difference]: With dead ends: 593 [2024-11-27 23:30:16,114 INFO L226 Difference]: Without dead ends: 288 [2024-11-27 23:30:16,119 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 23:30:16,123 INFO L435 NwaCegarLoop]: 304 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, 304 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 [2024-11-27 23:30:16,124 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 304 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:30:16,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2024-11-27 23:30:16,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 288. [2024-11-27 23:30:16,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 146 states have (on average 1.8972602739726028) internal successors, (277), 276 states have internal predecessors, (277), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-27 23:30:16,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 297 transitions. [2024-11-27 23:30:16,191 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 297 transitions. Word has length 5 [2024-11-27 23:30:16,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:30:16,192 INFO L471 AbstractCegarLoop]: Abstraction has 288 states and 297 transitions. [2024-11-27 23:30:16,192 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:30:16,192 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 297 transitions. [2024-11-27 23:30:16,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-27 23:30:16,192 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:30:16,192 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-27 23:30:16,193 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-27 23:30:16,193 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 23:30:16,193 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:30:16,193 INFO L85 PathProgramCache]: Analyzing trace with hash 28695757, now seen corresponding path program 1 times [2024-11-27 23:30:16,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:30:16,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313383089] [2024-11-27 23:30:16,194 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:30:16,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:30:16,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:30:16,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:30:16,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:30:16,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313383089] [2024-11-27 23:30:16,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313383089] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:30:16,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:30:16,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 23:30:16,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875078798] [2024-11-27 23:30:16,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:30:16,282 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:30:16,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:30:16,283 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:30:16,283 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:30:16,283 INFO L87 Difference]: Start difference. First operand 288 states and 297 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:30:16,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:30:16,534 INFO L93 Difference]: Finished difference Result 556 states and 575 transitions. [2024-11-27 23:30:16,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:30:16,535 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-11-27 23:30:16,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:30:16,538 INFO L225 Difference]: With dead ends: 556 [2024-11-27 23:30:16,542 INFO L226 Difference]: Without dead ends: 536 [2024-11-27 23:30:16,544 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 [2024-11-27 23:30:16,545 INFO L435 NwaCegarLoop]: 271 mSDtfsCounter, 237 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 520 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 23:30:16,545 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [247 Valid, 520 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 23:30:16,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2024-11-27 23:30:16,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 346. [2024-11-27 23:30:16,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 199 states have (on average 1.7989949748743719) internal successors, (358), 329 states have internal predecessors, (358), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-27 23:30:16,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 388 transitions. [2024-11-27 23:30:16,573 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 388 transitions. Word has length 5 [2024-11-27 23:30:16,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:30:16,574 INFO L471 AbstractCegarLoop]: Abstraction has 346 states and 388 transitions. [2024-11-27 23:30:16,574 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:30:16,574 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 388 transitions. [2024-11-27 23:30:16,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-27 23:30:16,575 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:30:16,575 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:30:16,575 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-27 23:30:16,576 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 23:30:16,576 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:30:16,576 INFO L85 PathProgramCache]: Analyzing trace with hash 1949328612, now seen corresponding path program 1 times [2024-11-27 23:30:16,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:30:16,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630154757] [2024-11-27 23:30:16,577 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:30:16,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:30:16,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:30:16,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1160340951] [2024-11-27 23:30:16,623 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:30:16,623 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:30:16,624 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:30:16,626 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:30:16,630 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 23:30:16,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:30:16,688 INFO L256 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 23:30:16,693 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:30:16,989 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-27 23:30:16,990 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:30:16,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:30:16,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630154757] [2024-11-27 23:30:16,992 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:30:16,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1160340951] [2024-11-27 23:30:16,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1160340951] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:30:16,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:30:16,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 23:30:16,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782647140] [2024-11-27 23:30:16,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:30:16,994 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:30:16,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:30:16,998 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:30:16,998 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:30:16,998 INFO L87 Difference]: Start difference. First operand 346 states and 388 transitions. Second operand has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-27 23:30:17,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:30:17,792 INFO L93 Difference]: Finished difference Result 506 states and 563 transitions. [2024-11-27 23:30:17,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:30:17,793 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 38 [2024-11-27 23:30:17,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:30:17,797 INFO L225 Difference]: With dead ends: 506 [2024-11-27 23:30:17,798 INFO L226 Difference]: Without dead ends: 451 [2024-11-27 23:30:17,798 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:30:17,799 INFO L435 NwaCegarLoop]: 164 mSDtfsCounter, 134 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 326 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-27 23:30:17,800 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 267 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 326 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-27 23:30:17,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2024-11-27 23:30:17,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 431. [2024-11-27 23:30:17,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 431 states, 279 states have (on average 1.6523297491039426) internal successors, (461), 409 states have internal predecessors, (461), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-27 23:30:17,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 501 transitions. [2024-11-27 23:30:17,854 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 501 transitions. Word has length 38 [2024-11-27 23:30:17,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:30:17,854 INFO L471 AbstractCegarLoop]: Abstraction has 431 states and 501 transitions. [2024-11-27 23:30:17,855 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-27 23:30:17,855 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 501 transitions. [2024-11-27 23:30:17,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-27 23:30:17,856 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:30:17,856 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:30:17,865 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-27 23:30:18,056 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:30:18,057 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 23:30:18,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:30:18,058 INFO L85 PathProgramCache]: Analyzing trace with hash 699057958, now seen corresponding path program 1 times [2024-11-27 23:30:18,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:30:18,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176119070] [2024-11-27 23:30:18,058 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:30:18,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:30:18,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:30:18,211 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-27 23:30:18,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:30:18,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176119070] [2024-11-27 23:30:18,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176119070] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:30:18,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:30:18,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 23:30:18,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682218086] [2024-11-27 23:30:18,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:30:18,213 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:30:18,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:30:18,213 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:30:18,213 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:30:18,214 INFO L87 Difference]: Start difference. First operand 431 states and 501 transitions. Second operand has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-27 23:30:18,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:30:18,704 INFO L93 Difference]: Finished difference Result 464 states and 508 transitions. [2024-11-27 23:30:18,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:30:18,705 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 40 [2024-11-27 23:30:18,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:30:18,708 INFO L225 Difference]: With dead ends: 464 [2024-11-27 23:30:18,708 INFO L226 Difference]: Without dead ends: 441 [2024-11-27 23:30:18,708 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 [2024-11-27 23:30:18,712 INFO L435 NwaCegarLoop]: 225 mSDtfsCounter, 120 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 425 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-27 23:30:18,712 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 425 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-27 23:30:18,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2024-11-27 23:30:18,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 431. [2024-11-27 23:30:18,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 431 states, 279 states have (on average 1.5698924731182795) internal successors, (438), 409 states have internal predecessors, (438), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-27 23:30:18,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 478 transitions. [2024-11-27 23:30:18,756 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 478 transitions. Word has length 40 [2024-11-27 23:30:18,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:30:18,756 INFO L471 AbstractCegarLoop]: Abstraction has 431 states and 478 transitions. [2024-11-27 23:30:18,757 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-27 23:30:18,757 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 478 transitions. [2024-11-27 23:30:18,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-27 23:30:18,761 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:30:18,761 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:30:18,761 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-27 23:30:18,761 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 23:30:18,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:30:18,763 INFO L85 PathProgramCache]: Analyzing trace with hash 1779802472, now seen corresponding path program 1 times [2024-11-27 23:30:18,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:30:18,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189964751] [2024-11-27 23:30:18,763 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:30:18,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:30:18,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:30:18,996 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-27 23:30:18,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:30:18,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189964751] [2024-11-27 23:30:18,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189964751] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:30:18,998 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:30:18,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:30:18,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994153006] [2024-11-27 23:30:18,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:30:18,999 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:30:18,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:30:19,000 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:30:19,001 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:30:19,001 INFO L87 Difference]: Start difference. First operand 431 states and 478 transitions. Second operand has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-27 23:30:19,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:30:19,582 INFO L93 Difference]: Finished difference Result 443 states and 485 transitions. [2024-11-27 23:30:19,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:30:19,583 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 42 [2024-11-27 23:30:19,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:30:19,586 INFO L225 Difference]: With dead ends: 443 [2024-11-27 23:30:19,586 INFO L226 Difference]: Without dead ends: 441 [2024-11-27 23:30:19,588 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 [2024-11-27 23:30:19,590 INFO L435 NwaCegarLoop]: 167 mSDtfsCounter, 252 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-27 23:30:19,591 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [262 Valid, 367 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-27 23:30:19,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2024-11-27 23:30:19,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 431. [2024-11-27 23:30:19,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 431 states, 279 states have (on average 1.5627240143369177) internal successors, (436), 409 states have internal predecessors, (436), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-27 23:30:19,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 476 transitions. [2024-11-27 23:30:19,617 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 476 transitions. Word has length 42 [2024-11-27 23:30:19,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:30:19,617 INFO L471 AbstractCegarLoop]: Abstraction has 431 states and 476 transitions. [2024-11-27 23:30:19,618 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-27 23:30:19,618 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 476 transitions. [2024-11-27 23:30:19,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-27 23:30:19,619 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:30:19,619 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:30:19,619 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-27 23:30:19,620 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 23:30:19,620 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:30:19,620 INFO L85 PathProgramCache]: Analyzing trace with hash -660698118, now seen corresponding path program 1 times [2024-11-27 23:30:19,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:30:19,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680005444] [2024-11-27 23:30:19,621 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:30:19,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:30:19,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:30:19,877 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-27 23:30:19,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:30:19,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680005444] [2024-11-27 23:30:19,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680005444] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:30:19,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:30:19,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:30:19,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463915661] [2024-11-27 23:30:19,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:30:19,879 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:30:19,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:30:19,879 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:30:19,879 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:30:19,880 INFO L87 Difference]: Start difference. First operand 431 states and 476 transitions. Second operand has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-27 23:30:21,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:30:21,610 INFO L93 Difference]: Finished difference Result 443 states and 483 transitions. [2024-11-27 23:30:21,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:30:21,612 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 43 [2024-11-27 23:30:21,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:30:21,615 INFO L225 Difference]: With dead ends: 443 [2024-11-27 23:30:21,616 INFO L226 Difference]: Without dead ends: 441 [2024-11-27 23:30:21,616 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 [2024-11-27 23:30:21,618 INFO L435 NwaCegarLoop]: 169 mSDtfsCounter, 136 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 441 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 448 SdHoareTripleChecker+Invalid, 443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-27 23:30:21,618 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 448 Invalid, 443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 441 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-27 23:30:21,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2024-11-27 23:30:21,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 431. [2024-11-27 23:30:21,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 431 states, 279 states have (on average 1.5555555555555556) internal successors, (434), 409 states have internal predecessors, (434), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-27 23:30:21,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 474 transitions. [2024-11-27 23:30:21,648 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 474 transitions. Word has length 43 [2024-11-27 23:30:21,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:30:21,649 INFO L471 AbstractCegarLoop]: Abstraction has 431 states and 474 transitions. [2024-11-27 23:30:21,650 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-27 23:30:21,650 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 474 transitions. [2024-11-27 23:30:21,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-27 23:30:21,651 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:30:21,651 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:30:21,651 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-27 23:30:21,651 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 23:30:21,652 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:30:21,652 INFO L85 PathProgramCache]: Analyzing trace with hash 977583596, now seen corresponding path program 1 times [2024-11-27 23:30:21,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:30:21,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103625259] [2024-11-27 23:30:21,652 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:30:21,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:30:21,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:30:21,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [487502298] [2024-11-27 23:30:21,699 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:30:21,699 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:30:21,699 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:30:21,703 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:30:21,704 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-27 23:30:21,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:30:21,765 INFO L256 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-27 23:30:21,767 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:30:22,106 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-27 23:30:22,106 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:30:22,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:30:22,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103625259] [2024-11-27 23:30:22,107 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:30:22,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [487502298] [2024-11-27 23:30:22,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [487502298] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:30:22,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:30:22,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 23:30:22,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312279350] [2024-11-27 23:30:22,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:30:22,108 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:30:22,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:30:22,109 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:30:22,109 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:30:22,110 INFO L87 Difference]: Start difference. First operand 431 states and 474 transitions. Second operand has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-27 23:30:22,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:30:22,650 INFO L93 Difference]: Finished difference Result 448 states and 481 transitions. [2024-11-27 23:30:22,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:30:22,651 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 46 [2024-11-27 23:30:22,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:30:22,653 INFO L225 Difference]: With dead ends: 448 [2024-11-27 23:30:22,653 INFO L226 Difference]: Without dead ends: 439 [2024-11-27 23:30:22,654 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:30:22,654 INFO L435 NwaCegarLoop]: 178 mSDtfsCounter, 112 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 336 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 336 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-27 23:30:22,655 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 257 Invalid, 344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 336 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-27 23:30:22,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2024-11-27 23:30:22,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 434. [2024-11-27 23:30:22,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 434 states, 282 states have (on average 1.5283687943262412) internal successors, (431), 412 states have internal predecessors, (431), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-27 23:30:22,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 471 transitions. [2024-11-27 23:30:22,675 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 471 transitions. Word has length 46 [2024-11-27 23:30:22,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:30:22,676 INFO L471 AbstractCegarLoop]: Abstraction has 434 states and 471 transitions. [2024-11-27 23:30:22,676 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-27 23:30:22,676 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 471 transitions. [2024-11-27 23:30:22,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-27 23:30:22,677 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:30:22,677 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:30:22,689 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-27 23:30:22,881 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:30:22,881 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 23:30:22,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:30:22,882 INFO L85 PathProgramCache]: Analyzing trace with hash 240320510, now seen corresponding path program 1 times [2024-11-27 23:30:22,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:30:22,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708826914] [2024-11-27 23:30:22,882 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:30:22,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:30:22,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:30:23,053 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-27 23:30:23,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:30:23,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708826914] [2024-11-27 23:30:23,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708826914] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:30:23,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:30:23,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:30:23,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134948994] [2024-11-27 23:30:23,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:30:23,056 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:30:23,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:30:23,056 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:30:23,056 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:30:23,057 INFO L87 Difference]: Start difference. First operand 434 states and 471 transitions. Second operand has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-27 23:30:23,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:30:23,736 INFO L93 Difference]: Finished difference Result 447 states and 472 transitions. [2024-11-27 23:30:23,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:30:23,736 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 47 [2024-11-27 23:30:23,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:30:23,738 INFO L225 Difference]: With dead ends: 447 [2024-11-27 23:30:23,738 INFO L226 Difference]: Without dead ends: 441 [2024-11-27 23:30:23,739 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 [2024-11-27 23:30:23,739 INFO L435 NwaCegarLoop]: 184 mSDtfsCounter, 132 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 505 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 505 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-27 23:30:23,739 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 384 Invalid, 511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 505 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-27 23:30:23,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2024-11-27 23:30:23,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 434. [2024-11-27 23:30:23,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 434 states, 282 states have (on average 1.5070921985815602) internal successors, (425), 412 states have internal predecessors, (425), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-27 23:30:23,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 465 transitions. [2024-11-27 23:30:23,761 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 465 transitions. Word has length 47 [2024-11-27 23:30:23,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:30:23,761 INFO L471 AbstractCegarLoop]: Abstraction has 434 states and 465 transitions. [2024-11-27 23:30:23,761 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-27 23:30:23,762 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 465 transitions. [2024-11-27 23:30:23,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-27 23:30:23,764 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:30:23,764 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:30:23,765 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-27 23:30:23,765 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 23:30:23,767 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:30:23,767 INFO L85 PathProgramCache]: Analyzing trace with hash -1393978366, now seen corresponding path program 1 times [2024-11-27 23:30:23,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:30:23,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070599855] [2024-11-27 23:30:23,768 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:30:23,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:30:23,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:30:23,920 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-27 23:30:23,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:30:23,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070599855] [2024-11-27 23:30:23,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070599855] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:30:23,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:30:23,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:30:23,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535842657] [2024-11-27 23:30:23,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:30:23,921 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:30:23,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:30:23,921 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:30:23,921 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:30:23,922 INFO L87 Difference]: Start difference. First operand 434 states and 465 transitions. Second operand has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-27 23:30:24,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:30:24,403 INFO L93 Difference]: Finished difference Result 445 states and 466 transitions. [2024-11-27 23:30:24,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:30:24,403 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 51 [2024-11-27 23:30:24,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:30:24,405 INFO L225 Difference]: With dead ends: 445 [2024-11-27 23:30:24,405 INFO L226 Difference]: Without dead ends: 372 [2024-11-27 23:30:24,406 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 [2024-11-27 23:30:24,406 INFO L435 NwaCegarLoop]: 190 mSDtfsCounter, 226 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 324 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 269 SdHoareTripleChecker+Invalid, 336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-27 23:30:24,407 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [233 Valid, 269 Invalid, 336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 324 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-27 23:30:24,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2024-11-27 23:30:24,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 368. [2024-11-27 23:30:24,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 368 states, 219 states have (on average 1.6255707762557077) internal successors, (356), 349 states have internal predecessors, (356), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-27 23:30:24,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 390 transitions. [2024-11-27 23:30:24,420 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 390 transitions. Word has length 51 [2024-11-27 23:30:24,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:30:24,420 INFO L471 AbstractCegarLoop]: Abstraction has 368 states and 390 transitions. [2024-11-27 23:30:24,420 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-27 23:30:24,420 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 390 transitions. [2024-11-27 23:30:24,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-27 23:30:24,422 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:30:24,422 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:30:24,422 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-27 23:30:24,422 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr52ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 23:30:24,423 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:30:24,423 INFO L85 PathProgramCache]: Analyzing trace with hash -1803359996, now seen corresponding path program 1 times [2024-11-27 23:30:24,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:30:24,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897667340] [2024-11-27 23:30:24,423 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:30:24,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:30:24,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:30:24,498 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-27 23:30:24,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:30:24,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897667340] [2024-11-27 23:30:24,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897667340] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:30:24,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:30:24,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 23:30:24,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501316763] [2024-11-27 23:30:24,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:30:24,499 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:30:24,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:30:24,499 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:30:24,499 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:30:24,500 INFO L87 Difference]: Start difference. First operand 368 states and 390 transitions. Second operand has 3 states, 2 states have (on average 30.5) internal successors, (61), 3 states have internal predecessors, (61), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-27 23:30:24,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:30:24,851 INFO L93 Difference]: Finished difference Result 368 states and 390 transitions. [2024-11-27 23:30:24,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:30:24,852 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 30.5) internal successors, (61), 3 states have internal predecessors, (61), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 83 [2024-11-27 23:30:24,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:30:24,854 INFO L225 Difference]: With dead ends: 368 [2024-11-27 23:30:24,854 INFO L226 Difference]: Without dead ends: 361 [2024-11-27 23:30:24,855 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 [2024-11-27 23:30:24,856 INFO L435 NwaCegarLoop]: 140 mSDtfsCounter, 138 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-27 23:30:24,857 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 155 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-27 23:30:24,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2024-11-27 23:30:24,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 361. [2024-11-27 23:30:24,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 361 states, 219 states have (on average 1.5936073059360731) internal successors, (349), 342 states have internal predecessors, (349), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-27 23:30:24,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 383 transitions. [2024-11-27 23:30:24,872 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 383 transitions. Word has length 83 [2024-11-27 23:30:24,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:30:24,873 INFO L471 AbstractCegarLoop]: Abstraction has 361 states and 383 transitions. [2024-11-27 23:30:24,873 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 30.5) internal successors, (61), 3 states have internal predecessors, (61), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-27 23:30:24,873 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 383 transitions. [2024-11-27 23:30:24,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-27 23:30:24,876 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:30:24,876 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:30:24,876 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-27 23:30:24,877 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr53ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 23:30:24,877 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:30:24,877 INFO L85 PathProgramCache]: Analyzing trace with hash -69584863, now seen corresponding path program 1 times [2024-11-27 23:30:24,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:30:24,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906354323] [2024-11-27 23:30:24,877 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:30:24,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:30:24,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:30:24,964 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-27 23:30:24,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:30:24,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906354323] [2024-11-27 23:30:24,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906354323] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:30:24,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:30:24,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 23:30:24,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515989752] [2024-11-27 23:30:24,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:30:24,965 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:30:24,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:30:24,965 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:30:24,965 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:30:24,966 INFO L87 Difference]: Start difference. First operand 361 states and 383 transitions. Second operand has 3 states, 2 states have (on average 31.0) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-27 23:30:25,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:30:25,292 INFO L93 Difference]: Finished difference Result 368 states and 386 transitions. [2024-11-27 23:30:25,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:30:25,292 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 31.0) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 84 [2024-11-27 23:30:25,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:30:25,294 INFO L225 Difference]: With dead ends: 368 [2024-11-27 23:30:25,294 INFO L226 Difference]: Without dead ends: 367 [2024-11-27 23:30:25,295 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 [2024-11-27 23:30:25,295 INFO L435 NwaCegarLoop]: 254 mSDtfsCounter, 24 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-27 23:30:25,295 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 392 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-27 23:30:25,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2024-11-27 23:30:25,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 363. [2024-11-27 23:30:25,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 363 states, 221 states have (on average 1.588235294117647) internal successors, (351), 344 states have internal predecessors, (351), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-27 23:30:25,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 385 transitions. [2024-11-27 23:30:25,308 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 385 transitions. Word has length 84 [2024-11-27 23:30:25,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:30:25,309 INFO L471 AbstractCegarLoop]: Abstraction has 363 states and 385 transitions. [2024-11-27 23:30:25,309 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 31.0) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-27 23:30:25,309 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 385 transitions. [2024-11-27 23:30:25,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-27 23:30:25,310 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:30:25,310 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:30:25,310 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-27 23:30:25,311 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr58ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 23:30:25,311 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:30:25,311 INFO L85 PathProgramCache]: Analyzing trace with hash 2057907944, now seen corresponding path program 1 times [2024-11-27 23:30:25,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:30:25,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625038050] [2024-11-27 23:30:25,311 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:30:25,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:30:25,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:30:25,411 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-27 23:30:25,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:30:25,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625038050] [2024-11-27 23:30:25,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625038050] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:30:25,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:30:25,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 23:30:25,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63831529] [2024-11-27 23:30:25,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:30:25,412 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:30:25,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:30:25,412 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:30:25,412 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:30:25,413 INFO L87 Difference]: Start difference. First operand 363 states and 385 transitions. Second operand has 3 states, 2 states have (on average 29.5) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-27 23:30:25,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:30:25,519 INFO L93 Difference]: Finished difference Result 363 states and 385 transitions. [2024-11-27 23:30:25,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:30:25,519 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 29.5) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 86 [2024-11-27 23:30:25,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:30:25,521 INFO L225 Difference]: With dead ends: 363 [2024-11-27 23:30:25,521 INFO L226 Difference]: Without dead ends: 361 [2024-11-27 23:30:25,522 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 [2024-11-27 23:30:25,522 INFO L435 NwaCegarLoop]: 248 mSDtfsCounter, 192 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 262 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:30:25,522 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 262 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:30:25,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2024-11-27 23:30:25,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 361. [2024-11-27 23:30:25,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 361 states, 221 states have (on average 1.5701357466063348) internal successors, (347), 342 states have internal predecessors, (347), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-27 23:30:25,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 381 transitions. [2024-11-27 23:30:25,539 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 381 transitions. Word has length 86 [2024-11-27 23:30:25,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:30:25,539 INFO L471 AbstractCegarLoop]: Abstraction has 361 states and 381 transitions. [2024-11-27 23:30:25,539 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 29.5) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-27 23:30:25,539 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 381 transitions. [2024-11-27 23:30:25,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-27 23:30:25,542 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:30:25,542 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:30:25,542 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-27 23:30:25,542 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 23:30:25,542 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:30:25,543 INFO L85 PathProgramCache]: Analyzing trace with hash 2137836592, now seen corresponding path program 1 times [2024-11-27 23:30:25,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:30:25,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273204110] [2024-11-27 23:30:25,543 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:30:25,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:30:25,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:30:25,654 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-27 23:30:25,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:30:25,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273204110] [2024-11-27 23:30:25,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1273204110] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:30:25,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [40527097] [2024-11-27 23:30:25,655 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:30:25,655 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:30:25,655 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:30:25,657 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:30:25,660 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-27 23:30:25,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:30:25,715 INFO L256 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 23:30:25,717 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:30:25,827 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-27 23:30:25,827 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:30:25,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [40527097] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:30:25,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:30:25,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2024-11-27 23:30:25,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729521107] [2024-11-27 23:30:25,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:30:25,830 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:30:25,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:30:25,830 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:30:25,830 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:30:25,830 INFO L87 Difference]: Start difference. First operand 361 states and 381 transitions. Second operand has 4 states, 3 states have (on average 21.0) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-27 23:30:25,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:30:25,970 INFO L93 Difference]: Finished difference Result 365 states and 381 transitions. [2024-11-27 23:30:25,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:30:25,971 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 21.0) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 85 [2024-11-27 23:30:25,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:30:25,973 INFO L225 Difference]: With dead ends: 365 [2024-11-27 23:30:25,974 INFO L226 Difference]: Without dead ends: 357 [2024-11-27 23:30:25,974 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:30:25,975 INFO L435 NwaCegarLoop]: 303 mSDtfsCounter, 258 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:30:25,975 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [270 Valid, 394 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:30:25,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2024-11-27 23:30:25,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 353. [2024-11-27 23:30:25,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 353 states, 221 states have (on average 1.5339366515837105) internal successors, (339), 334 states have internal predecessors, (339), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-27 23:30:25,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 373 transitions. [2024-11-27 23:30:25,990 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 373 transitions. Word has length 85 [2024-11-27 23:30:25,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:30:25,990 INFO L471 AbstractCegarLoop]: Abstraction has 353 states and 373 transitions. [2024-11-27 23:30:25,990 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 21.0) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-27 23:30:25,990 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 373 transitions. [2024-11-27 23:30:25,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-27 23:30:25,992 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:30:25,992 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:30:26,001 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-27 23:30:26,193 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:30:26,194 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr59ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 23:30:26,195 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:30:26,195 INFO L85 PathProgramCache]: Analyzing trace with hash -629362995, now seen corresponding path program 1 times [2024-11-27 23:30:26,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:30:26,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285962663] [2024-11-27 23:30:26,196 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:30:26,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:30:26,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:30:26,328 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-27 23:30:26,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:30:26,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285962663] [2024-11-27 23:30:26,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285962663] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:30:26,328 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:30:26,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 23:30:26,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025398283] [2024-11-27 23:30:26,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:30:26,329 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:30:26,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:30:26,330 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:30:26,330 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:30:26,330 INFO L87 Difference]: Start difference. First operand 353 states and 373 transitions. Second operand has 5 states, 4 states have (on average 15.0) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (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) [2024-11-27 23:30:26,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:30:26,645 INFO L93 Difference]: Finished difference Result 357 states and 373 transitions. [2024-11-27 23:30:26,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:30:26,646 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.0) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (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 87 [2024-11-27 23:30:26,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:30:26,648 INFO L225 Difference]: With dead ends: 357 [2024-11-27 23:30:26,648 INFO L226 Difference]: Without dead ends: 353 [2024-11-27 23:30:26,648 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:30:26,649 INFO L435 NwaCegarLoop]: 241 mSDtfsCounter, 48 mSDsluCounter, 459 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 700 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-27 23:30:26,650 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 700 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-27 23:30:26,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2024-11-27 23:30:26,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 351. [2024-11-27 23:30:26,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 219 states have (on average 1.5296803652968036) internal successors, (335), 332 states have internal predecessors, (335), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-27 23:30:26,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 369 transitions. [2024-11-27 23:30:26,666 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 369 transitions. Word has length 87 [2024-11-27 23:30:26,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:30:26,666 INFO L471 AbstractCegarLoop]: Abstraction has 351 states and 369 transitions. [2024-11-27 23:30:26,667 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.0) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (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) [2024-11-27 23:30:26,667 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 369 transitions. [2024-11-27 23:30:26,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-27 23:30:26,668 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:30:26,668 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2024-11-27 23:30:26,668 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-27 23:30:26,668 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 23:30:26,670 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:30:26,670 INFO L85 PathProgramCache]: Analyzing trace with hash 1848424963, now seen corresponding path program 1 times [2024-11-27 23:30:26,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:30:26,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586358082] [2024-11-27 23:30:26,670 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:30:26,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:30:26,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:30:26,779 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-27 23:30:26,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:30:26,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586358082] [2024-11-27 23:30:26,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586358082] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:30:26,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1534209388] [2024-11-27 23:30:26,780 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:30:26,780 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:30:26,780 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:30:26,784 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:30:26,788 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-27 23:30:26,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:30:26,856 INFO L256 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 23:30:26,857 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:30:26,969 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-27 23:30:26,969 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:30:27,125 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-27 23:30:27,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1534209388] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:30:27,126 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 23:30:27,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-11-27 23:30:27,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767003998] [2024-11-27 23:30:27,126 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 23:30:27,127 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 23:30:27,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:30:27,128 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 23:30:27,128 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-27 23:30:27,128 INFO L87 Difference]: Start difference. First operand 351 states and 369 transitions. Second operand has 7 states, 6 states have (on average 28.666666666666668) internal successors, (172), 7 states have internal predecessors, (172), 3 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-27 23:30:27,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:30:27,379 INFO L93 Difference]: Finished difference Result 610 states and 648 transitions. [2024-11-27 23:30:27,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:30:27,380 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 28.666666666666668) internal successors, (172), 7 states have internal predecessors, (172), 3 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 86 [2024-11-27 23:30:27,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:30:27,382 INFO L225 Difference]: With dead ends: 610 [2024-11-27 23:30:27,383 INFO L226 Difference]: Without dead ends: 602 [2024-11-27 23:30:27,383 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-27 23:30:27,384 INFO L435 NwaCegarLoop]: 242 mSDtfsCounter, 467 mSDsluCounter, 501 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 484 SdHoareTripleChecker+Valid, 743 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 23:30:27,384 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [484 Valid, 743 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 23:30:27,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2024-11-27 23:30:27,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 409. [2024-11-27 23:30:27,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 409 states, 278 states have (on average 1.5215827338129497) internal successors, (423), 385 states have internal predecessors, (423), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-27 23:30:27,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 467 transitions. [2024-11-27 23:30:27,402 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 467 transitions. Word has length 86 [2024-11-27 23:30:27,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:30:27,403 INFO L471 AbstractCegarLoop]: Abstraction has 409 states and 467 transitions. [2024-11-27 23:30:27,403 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 28.666666666666668) internal successors, (172), 7 states have internal predecessors, (172), 3 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-27 23:30:27,403 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 467 transitions. [2024-11-27 23:30:27,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-27 23:30:27,404 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:30:27,404 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:30:27,414 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-27 23:30:27,605 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-27 23:30:27,605 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 23:30:27,605 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:30:27,605 INFO L85 PathProgramCache]: Analyzing trace with hash 2010999569, now seen corresponding path program 1 times [2024-11-27 23:30:27,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:30:27,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745732554] [2024-11-27 23:30:27,606 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:30:27,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:30:27,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:30:27,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1278607794] [2024-11-27 23:30:27,633 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:30:27,633 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:30:27,633 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:30:27,637 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:30:27,641 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-27 23:30:27,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:30:27,704 INFO L256 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 23:30:27,707 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:30:27,826 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-27 23:30:27,826 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:30:28,086 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-27 23:30:28,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:30:28,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745732554] [2024-11-27 23:30:28,086 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:30:28,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1278607794] [2024-11-27 23:30:28,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1278607794] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:30:28,086 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 23:30:28,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2024-11-27 23:30:28,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428901156] [2024-11-27 23:30:28,087 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 23:30:28,087 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:30:28,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:30:28,087 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:30:28,088 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:30:28,088 INFO L87 Difference]: Start difference. First operand 409 states and 467 transitions. Second operand has 6 states, 5 states have (on average 26.8) internal successors, (134), 6 states have internal predecessors, (134), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-27 23:30:28,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:30:28,360 INFO L93 Difference]: Finished difference Result 612 states and 644 transitions. [2024-11-27 23:30:28,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:30:28,361 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 26.8) internal successors, (134), 6 states have internal predecessors, (134), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 97 [2024-11-27 23:30:28,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:30:28,364 INFO L225 Difference]: With dead ends: 612 [2024-11-27 23:30:28,364 INFO L226 Difference]: Without dead ends: 607 [2024-11-27 23:30:28,364 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2024-11-27 23:30:28,365 INFO L435 NwaCegarLoop]: 299 mSDtfsCounter, 1094 mSDsluCounter, 485 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1105 SdHoareTripleChecker+Valid, 784 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 23:30:28,365 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1105 Valid, 784 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 23:30:28,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 607 states. [2024-11-27 23:30:28,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 607 to 414. [2024-11-27 23:30:28,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 414 states, 286 states have (on average 1.479020979020979) internal successors, (423), 389 states have internal predecessors, (423), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-27 23:30:28,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 469 transitions. [2024-11-27 23:30:28,385 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 469 transitions. Word has length 97 [2024-11-27 23:30:28,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:30:28,385 INFO L471 AbstractCegarLoop]: Abstraction has 414 states and 469 transitions. [2024-11-27 23:30:28,386 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 26.8) internal successors, (134), 6 states have internal predecessors, (134), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-27 23:30:28,386 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 469 transitions. [2024-11-27 23:30:28,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-27 23:30:28,387 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:30:28,387 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:30:28,396 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-27 23:30:28,591 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-27 23:30:28,592 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr70ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 23:30:28,592 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:30:28,592 INFO L85 PathProgramCache]: Analyzing trace with hash -1305469991, now seen corresponding path program 1 times [2024-11-27 23:30:28,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:30:28,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892403360] [2024-11-27 23:30:28,593 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:30:28,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:30:28,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:30:28,829 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-27 23:30:28,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:30:28,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892403360] [2024-11-27 23:30:28,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1892403360] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:30:28,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:30:28,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 23:30:28,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60575894] [2024-11-27 23:30:28,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:30:28,830 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:30:28,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:30:28,830 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:30:28,830 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:30:28,831 INFO L87 Difference]: Start difference. First operand 414 states and 469 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-27 23:30:29,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:30:29,063 INFO L93 Difference]: Finished difference Result 420 states and 472 transitions. [2024-11-27 23:30:29,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 23:30:29,064 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 103 [2024-11-27 23:30:29,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:30:29,066 INFO L225 Difference]: With dead ends: 420 [2024-11-27 23:30:29,066 INFO L226 Difference]: Without dead ends: 392 [2024-11-27 23:30:29,066 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:30:29,067 INFO L435 NwaCegarLoop]: 209 mSDtfsCounter, 456 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 466 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 23:30:29,067 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [466 Valid, 400 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 23:30:29,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2024-11-27 23:30:29,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 392. [2024-11-27 23:30:29,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 392 states, 268 states have (on average 1.4962686567164178) internal successors, (401), 369 states have internal predecessors, (401), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-27 23:30:29,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 443 transitions. [2024-11-27 23:30:29,088 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 443 transitions. Word has length 103 [2024-11-27 23:30:29,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:30:29,089 INFO L471 AbstractCegarLoop]: Abstraction has 392 states and 443 transitions. [2024-11-27 23:30:29,089 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-27 23:30:29,089 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 443 transitions. [2024-11-27 23:30:29,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-27 23:30:29,091 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:30:29,091 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 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] [2024-11-27 23:30:29,091 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-27 23:30:29,091 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 23:30:29,092 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:30:29,092 INFO L85 PathProgramCache]: Analyzing trace with hash 1352412641, now seen corresponding path program 1 times [2024-11-27 23:30:29,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:30:29,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826775856] [2024-11-27 23:30:29,092 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:30:29,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:30:29,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:30:29,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [10871846] [2024-11-27 23:30:29,121 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:30:29,121 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:30:29,122 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:30:29,124 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:30:29,132 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-27 23:30:29,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:30:29,204 INFO L256 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 23:30:29,207 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:30:29,571 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-27 23:30:29,571 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:30:29,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:30:29,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826775856] [2024-11-27 23:30:29,572 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:30:29,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [10871846] [2024-11-27 23:30:29,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [10871846] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:30:29,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:30:29,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 23:30:29,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729353106] [2024-11-27 23:30:29,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:30:29,573 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:30:29,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:30:29,573 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:30:29,574 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:30:29,574 INFO L87 Difference]: Start difference. First operand 392 states and 443 transitions. Second operand has 5 states, 4 states have (on average 20.25) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-27 23:30:30,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:30:30,242 INFO L93 Difference]: Finished difference Result 392 states and 443 transitions. [2024-11-27 23:30:30,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:30:30,243 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 20.25) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 118 [2024-11-27 23:30:30,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:30:30,245 INFO L225 Difference]: With dead ends: 392 [2024-11-27 23:30:30,245 INFO L226 Difference]: Without dead ends: 382 [2024-11-27 23:30:30,246 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:30:30,246 INFO L435 NwaCegarLoop]: 116 mSDtfsCounter, 231 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 238 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-27 23:30:30,247 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [238 Valid, 238 Invalid, 479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 464 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-27 23:30:30,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2024-11-27 23:30:30,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 382. [2024-11-27 23:30:30,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 382 states, 268 states have (on average 1.4440298507462686) internal successors, (387), 359 states have internal predecessors, (387), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-27 23:30:30,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 429 transitions. [2024-11-27 23:30:30,268 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 429 transitions. Word has length 118 [2024-11-27 23:30:30,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:30:30,269 INFO L471 AbstractCegarLoop]: Abstraction has 382 states and 429 transitions. [2024-11-27 23:30:30,269 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 20.25) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-27 23:30:30,269 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 429 transitions. [2024-11-27 23:30:30,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-27 23:30:30,270 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:30:30,270 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:30:30,280 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-27 23:30:30,471 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-27 23:30:30,471 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 23:30:30,472 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:30:30,472 INFO L85 PathProgramCache]: Analyzing trace with hash -1024880999, now seen corresponding path program 1 times [2024-11-27 23:30:30,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:30:30,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815366017] [2024-11-27 23:30:30,472 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:30:30,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:30:30,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:30:30,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [829817452] [2024-11-27 23:30:30,499 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:30:30,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:30:30,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:30:30,501 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:30:30,509 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-27 23:30:30,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:30:30,574 INFO L256 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-27 23:30:30,577 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:30:30,970 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-27 23:30:30,970 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:30:31,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:30:31,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815366017] [2024-11-27 23:30:31,601 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:30:31,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [829817452] [2024-11-27 23:30:31,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [829817452] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:30:31,602 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:30:31,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2024-11-27 23:30:31,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433812769] [2024-11-27 23:30:31,602 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 23:30:31,603 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:30:31,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:30:31,603 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:30:31,603 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-11-27 23:30:31,604 INFO L87 Difference]: Start difference. First operand 382 states and 429 transitions. Second operand has 5 states, 4 states have (on average 20.5) internal successors, (82), 5 states have internal predecessors, (82), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-27 23:30:32,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:30:32,563 INFO L93 Difference]: Finished difference Result 507 states and 586 transitions. [2024-11-27 23:30:32,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 23:30:32,564 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 20.5) internal successors, (82), 5 states have internal predecessors, (82), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 119 [2024-11-27 23:30:32,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:30:32,567 INFO L225 Difference]: With dead ends: 507 [2024-11-27 23:30:32,567 INFO L226 Difference]: Without dead ends: 483 [2024-11-27 23:30:32,567 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-11-27 23:30:32,568 INFO L435 NwaCegarLoop]: 141 mSDtfsCounter, 129 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 736 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 759 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 736 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-27 23:30:32,568 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 374 Invalid, 759 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 736 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-27 23:30:32,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2024-11-27 23:30:32,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 467. [2024-11-27 23:30:32,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 467 states, 348 states have (on average 1.4454022988505748) internal successors, (503), 439 states have internal predecessors, (503), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-27 23:30:32,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 555 transitions. [2024-11-27 23:30:32,589 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 555 transitions. Word has length 119 [2024-11-27 23:30:32,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:30:32,590 INFO L471 AbstractCegarLoop]: Abstraction has 467 states and 555 transitions. [2024-11-27 23:30:32,590 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 20.5) internal successors, (82), 5 states have internal predecessors, (82), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-27 23:30:32,590 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 555 transitions. [2024-11-27 23:30:32,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-27 23:30:32,591 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:30:32,591 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:30:32,601 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-27 23:30:32,795 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:30:32,795 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 23:30:32,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:30:32,796 INFO L85 PathProgramCache]: Analyzing trace with hash -1706539805, now seen corresponding path program 1 times [2024-11-27 23:30:32,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:30:32,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320085005] [2024-11-27 23:30:32,796 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:30:32,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:30:32,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:30:32,968 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-27 23:30:32,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:30:32,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320085005] [2024-11-27 23:30:32,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1320085005] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:30:32,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1508332392] [2024-11-27 23:30:32,969 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:30:32,969 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:30:32,969 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:30:32,971 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:30:32,975 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-27 23:30:33,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:30:33,047 INFO L256 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 23:30:33,049 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:30:33,320 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-27 23:30:33,320 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:30:33,545 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-27 23:30:33,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1508332392] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:30:33,546 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 23:30:33,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 3] total 7 [2024-11-27 23:30:33,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872696323] [2024-11-27 23:30:33,546 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 23:30:33,546 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 23:30:33,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:30:33,549 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 23:30:33,549 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-11-27 23:30:33,550 INFO L87 Difference]: Start difference. First operand 467 states and 555 transitions. Second operand has 8 states, 7 states have (on average 30.571428571428573) internal successors, (214), 8 states have internal predecessors, (214), 5 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 5 states have call predecessors, (21), 5 states have call successors, (21) [2024-11-27 23:30:34,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:30:34,497 INFO L93 Difference]: Finished difference Result 489 states and 562 transitions. [2024-11-27 23:30:34,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 23:30:34,497 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 30.571428571428573) internal successors, (214), 8 states have internal predecessors, (214), 5 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 5 states have call predecessors, (21), 5 states have call successors, (21) Word has length 120 [2024-11-27 23:30:34,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:30:34,500 INFO L225 Difference]: With dead ends: 489 [2024-11-27 23:30:34,500 INFO L226 Difference]: Without dead ends: 484 [2024-11-27 23:30:34,500 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2024-11-27 23:30:34,501 INFO L435 NwaCegarLoop]: 182 mSDtfsCounter, 330 mSDsluCounter, 484 mSDsCounter, 0 mSdLazyCounter, 837 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 342 SdHoareTripleChecker+Valid, 666 SdHoareTripleChecker+Invalid, 851 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 837 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-27 23:30:34,501 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [342 Valid, 666 Invalid, 851 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 837 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-27 23:30:34,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 484 states. [2024-11-27 23:30:34,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 484 to 463. [2024-11-27 23:30:34,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 463 states, 348 states have (on average 1.4195402298850575) internal successors, (494), 435 states have internal predecessors, (494), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-27 23:30:34,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 546 transitions. [2024-11-27 23:30:34,526 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 546 transitions. Word has length 120 [2024-11-27 23:30:34,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:30:34,527 INFO L471 AbstractCegarLoop]: Abstraction has 463 states and 546 transitions. [2024-11-27 23:30:34,527 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 30.571428571428573) internal successors, (214), 8 states have internal predecessors, (214), 5 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 5 states have call predecessors, (21), 5 states have call successors, (21) [2024-11-27 23:30:34,527 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 546 transitions. [2024-11-27 23:30:34,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-27 23:30:34,528 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:30:34,529 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 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] [2024-11-27 23:30:34,539 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-27 23:30:34,729 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:30:34,729 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 23:30:34,730 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:30:34,730 INFO L85 PathProgramCache]: Analyzing trace with hash -1363126309, now seen corresponding path program 1 times [2024-11-27 23:30:34,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:30:34,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168847146] [2024-11-27 23:30:34,730 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:30:34,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:30:34,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:30:34,873 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-27 23:30:34,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:30:34,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168847146] [2024-11-27 23:30:34,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168847146] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:30:34,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1749459004] [2024-11-27 23:30:34,874 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:30:34,874 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:30:34,874 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:30:34,879 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:30:34,880 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-27 23:30:34,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:30:34,954 INFO L256 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 23:30:34,956 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:30:35,182 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-27 23:30:35,183 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:30:35,373 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-27 23:30:35,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1749459004] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:30:35,373 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 23:30:35,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 3] total 7 [2024-11-27 23:30:35,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060590607] [2024-11-27 23:30:35,373 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 23:30:35,374 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 23:30:35,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:30:35,374 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 23:30:35,374 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2024-11-27 23:30:35,375 INFO L87 Difference]: Start difference. First operand 463 states and 546 transitions. Second operand has 8 states, 7 states have (on average 30.857142857142858) internal successors, (216), 8 states have internal predecessors, (216), 5 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 5 states have call predecessors, (21), 5 states have call successors, (21) [2024-11-27 23:30:35,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:30:35,990 INFO L93 Difference]: Finished difference Result 485 states and 553 transitions. [2024-11-27 23:30:35,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 23:30:35,991 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 30.857142857142858) internal successors, (216), 8 states have internal predecessors, (216), 5 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 5 states have call predecessors, (21), 5 states have call successors, (21) Word has length 121 [2024-11-27 23:30:35,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:30:35,993 INFO L225 Difference]: With dead ends: 485 [2024-11-27 23:30:35,993 INFO L226 Difference]: Without dead ends: 480 [2024-11-27 23:30:35,993 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 238 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=39, Unknown=0, NotChecked=0, Total=72 [2024-11-27 23:30:35,994 INFO L435 NwaCegarLoop]: 134 mSDtfsCounter, 328 mSDsluCounter, 373 mSDsCounter, 0 mSdLazyCounter, 632 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 340 SdHoareTripleChecker+Valid, 507 SdHoareTripleChecker+Invalid, 646 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 632 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-27 23:30:35,994 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [340 Valid, 507 Invalid, 646 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 632 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-27 23:30:35,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2024-11-27 23:30:36,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 459. [2024-11-27 23:30:36,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 459 states, 348 states have (on average 1.3936781609195403) internal successors, (485), 431 states have internal predecessors, (485), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-27 23:30:36,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 537 transitions. [2024-11-27 23:30:36,015 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 537 transitions. Word has length 121 [2024-11-27 23:30:36,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:30:36,015 INFO L471 AbstractCegarLoop]: Abstraction has 459 states and 537 transitions. [2024-11-27 23:30:36,015 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 30.857142857142858) internal successors, (216), 8 states have internal predecessors, (216), 5 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 5 states have call predecessors, (21), 5 states have call successors, (21) [2024-11-27 23:30:36,015 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 537 transitions. [2024-11-27 23:30:36,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-27 23:30:36,016 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:30:36,017 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:30:36,026 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-27 23:30:36,217 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:30:36,217 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 23:30:36,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:30:36,218 INFO L85 PathProgramCache]: Analyzing trace with hash 692757477, now seen corresponding path program 1 times [2024-11-27 23:30:36,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:30:36,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904929724] [2024-11-27 23:30:36,218 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:30:36,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:30:36,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:30:36,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1236382371] [2024-11-27 23:30:36,241 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:30:36,241 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:30:36,241 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:30:36,244 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:30:36,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-27 23:30:36,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:30:36,311 INFO L256 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-27 23:30:36,314 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:30:36,866 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-27 23:30:36,866 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:30:37,189 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-27 23:30:37,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:30:37,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904929724] [2024-11-27 23:30:37,189 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:30:37,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1236382371] [2024-11-27 23:30:37,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1236382371] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:30:37,189 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 23:30:37,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2024-11-27 23:30:37,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235622933] [2024-11-27 23:30:37,189 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 23:30:37,190 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-27 23:30:37,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:30:37,190 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-27 23:30:37,190 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-11-27 23:30:37,190 INFO L87 Difference]: Start difference. First operand 459 states and 537 transitions. Second operand has 10 states, 9 states have (on average 18.22222222222222) internal successors, (164), 10 states have internal predecessors, (164), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2024-11-27 23:30:39,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:30:39,705 INFO L93 Difference]: Finished difference Result 504 states and 544 transitions. [2024-11-27 23:30:39,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-27 23:30:39,706 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 18.22222222222222) internal successors, (164), 10 states have internal predecessors, (164), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) Word has length 122 [2024-11-27 23:30:39,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:30:39,708 INFO L225 Difference]: With dead ends: 504 [2024-11-27 23:30:39,708 INFO L226 Difference]: Without dead ends: 410 [2024-11-27 23:30:39,709 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 234 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2024-11-27 23:30:39,711 INFO L435 NwaCegarLoop]: 90 mSDtfsCounter, 314 mSDsluCounter, 392 mSDsCounter, 0 mSdLazyCounter, 1596 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 321 SdHoareTripleChecker+Valid, 482 SdHoareTripleChecker+Invalid, 1660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 1596 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-27 23:30:39,711 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [321 Valid, 482 Invalid, 1660 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 1596 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-27 23:30:39,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2024-11-27 23:30:39,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 406. [2024-11-27 23:30:39,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406 states, 300 states have (on average 1.33) internal successors, (399), 381 states have internal predecessors, (399), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-27 23:30:39,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 445 transitions. [2024-11-27 23:30:39,747 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 445 transitions. Word has length 122 [2024-11-27 23:30:39,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:30:39,748 INFO L471 AbstractCegarLoop]: Abstraction has 406 states and 445 transitions. [2024-11-27 23:30:39,748 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 18.22222222222222) internal successors, (164), 10 states have internal predecessors, (164), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2024-11-27 23:30:39,748 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 445 transitions. [2024-11-27 23:30:39,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-27 23:30:39,750 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:30:39,750 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-27 23:30:39,761 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-27 23:30:39,951 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:30:39,951 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr53ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 23:30:39,952 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:30:39,952 INFO L85 PathProgramCache]: Analyzing trace with hash 1553976926, now seen corresponding path program 1 times [2024-11-27 23:30:39,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:30:39,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369469879] [2024-11-27 23:30:39,953 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:30:39,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:30:39,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:30:40,041 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 213 trivial. 0 not checked. [2024-11-27 23:30:40,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:30:40,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369469879] [2024-11-27 23:30:40,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369469879] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:30:40,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:30:40,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 23:30:40,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985028425] [2024-11-27 23:30:40,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:30:40,043 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:30:40,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:30:40,044 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:30:40,044 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:30:40,044 INFO L87 Difference]: Start difference. First operand 406 states and 445 transitions. Second operand has 3 states, 2 states have (on average 44.0) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-27 23:30:40,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:30:40,424 INFO L93 Difference]: Finished difference Result 406 states and 445 transitions. [2024-11-27 23:30:40,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:30:40,424 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 44.0) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 164 [2024-11-27 23:30:40,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:30:40,426 INFO L225 Difference]: With dead ends: 406 [2024-11-27 23:30:40,427 INFO L226 Difference]: Without dead ends: 403 [2024-11-27 23:30:40,427 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 [2024-11-27 23:30:40,428 INFO L435 NwaCegarLoop]: 108 mSDtfsCounter, 124 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-27 23:30:40,428 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 153 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-27 23:30:40,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2024-11-27 23:30:40,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 403. [2024-11-27 23:30:40,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 403 states, 300 states have (on average 1.3166666666666667) internal successors, (395), 378 states have internal predecessors, (395), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-27 23:30:40,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 441 transitions. [2024-11-27 23:30:40,450 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 441 transitions. Word has length 164 [2024-11-27 23:30:40,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:30:40,451 INFO L471 AbstractCegarLoop]: Abstraction has 403 states and 441 transitions. [2024-11-27 23:30:40,451 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 44.0) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-27 23:30:40,451 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 441 transitions. [2024-11-27 23:30:40,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-27 23:30:40,453 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:30:40,454 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-27 23:30:40,454 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-27 23:30:40,455 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr60ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 23:30:40,455 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:30:40,455 INFO L85 PathProgramCache]: Analyzing trace with hash 813652807, now seen corresponding path program 1 times [2024-11-27 23:30:40,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:30:40,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353050130] [2024-11-27 23:30:40,456 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:30:40,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:30:40,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:30:40,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [926949975] [2024-11-27 23:30:40,492 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:30:40,492 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:30:40,493 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:30:40,495 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:30:40,499 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-27 23:30:40,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:30:40,588 INFO L256 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-27 23:30:40,591 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:30:41,211 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-27 23:30:41,211 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:30:42,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:30:42,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353050130] [2024-11-27 23:30:42,116 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:30:42,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [926949975] [2024-11-27 23:30:42,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [926949975] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:30:42,117 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:30:42,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2024-11-27 23:30:42,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166960429] [2024-11-27 23:30:42,117 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 23:30:42,118 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:30:42,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:30:42,118 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:30:42,118 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-27 23:30:42,119 INFO L87 Difference]: Start difference. First operand 403 states and 441 transitions. Second operand has 5 states, 4 states have (on average 29.0) internal successors, (116), 5 states have internal predecessors, (116), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-27 23:30:42,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:30:42,856 INFO L93 Difference]: Finished difference Result 404 states and 441 transitions. [2024-11-27 23:30:42,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:30:42,856 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 29.0) internal successors, (116), 5 states have internal predecessors, (116), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 168 [2024-11-27 23:30:42,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:30:42,858 INFO L225 Difference]: With dead ends: 404 [2024-11-27 23:30:42,858 INFO L226 Difference]: Without dead ends: 403 [2024-11-27 23:30:42,859 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 255 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-11-27 23:30:42,859 INFO L435 NwaCegarLoop]: 207 mSDtfsCounter, 34 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 673 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 433 SdHoareTripleChecker+Invalid, 676 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 673 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-27 23:30:42,859 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 433 Invalid, 676 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 673 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-27 23:30:42,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2024-11-27 23:30:42,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 403. [2024-11-27 23:30:42,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 403 states, 300 states have (on average 1.3133333333333332) internal successors, (394), 378 states have internal predecessors, (394), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-27 23:30:42,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 440 transitions. [2024-11-27 23:30:42,881 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 440 transitions. Word has length 168 [2024-11-27 23:30:42,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:30:42,882 INFO L471 AbstractCegarLoop]: Abstraction has 403 states and 440 transitions. [2024-11-27 23:30:42,882 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 29.0) internal successors, (116), 5 states have internal predecessors, (116), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-27 23:30:42,882 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 440 transitions. [2024-11-27 23:30:42,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-27 23:30:42,887 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:30:42,887 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-27 23:30:42,898 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-27 23:30:43,091 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-11-27 23:30:43,091 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr61ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 23:30:43,092 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:30:43,092 INFO L85 PathProgramCache]: Analyzing trace with hash -546566574, now seen corresponding path program 1 times [2024-11-27 23:30:43,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:30:43,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707788998] [2024-11-27 23:30:43,092 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:30:43,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:30:43,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:30:43,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [984464090] [2024-11-27 23:30:43,132 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:30:43,132 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:30:43,133 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:30:43,135 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:30:43,139 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-27 23:30:43,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:30:43,223 INFO L256 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-27 23:30:43,225 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:30:43,770 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-27 23:30:43,770 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:30:44,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:30:44,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707788998] [2024-11-27 23:30:44,003 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:30:44,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [984464090] [2024-11-27 23:30:44,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [984464090] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:30:44,003 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:30:44,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-11-27 23:30:44,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172293292] [2024-11-27 23:30:44,003 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 23:30:44,004 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:30:44,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:30:44,004 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:30:44,004 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-27 23:30:44,005 INFO L87 Difference]: Start difference. First operand 403 states and 440 transitions. Second operand has 6 states, 5 states have (on average 23.4) internal successors, (117), 6 states have internal predecessors, (117), 3 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-27 23:30:44,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:30:44,703 INFO L93 Difference]: Finished difference Result 414 states and 440 transitions. [2024-11-27 23:30:44,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 23:30:44,703 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 23.4) internal successors, (117), 6 states have internal predecessors, (117), 3 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 169 [2024-11-27 23:30:44,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:30:44,704 INFO L225 Difference]: With dead ends: 414 [2024-11-27 23:30:44,704 INFO L226 Difference]: Without dead ends: 413 [2024-11-27 23:30:44,705 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-11-27 23:30:44,705 INFO L435 NwaCegarLoop]: 184 mSDtfsCounter, 69 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 894 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 518 SdHoareTripleChecker+Invalid, 898 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 894 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-27 23:30:44,705 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 518 Invalid, 898 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 894 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-27 23:30:44,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2024-11-27 23:30:44,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 403. [2024-11-27 23:30:44,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 403 states, 300 states have (on average 1.31) internal successors, (393), 378 states have internal predecessors, (393), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-27 23:30:44,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 439 transitions. [2024-11-27 23:30:44,723 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 439 transitions. Word has length 169 [2024-11-27 23:30:44,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:30:44,724 INFO L471 AbstractCegarLoop]: Abstraction has 403 states and 439 transitions. [2024-11-27 23:30:44,724 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 23.4) internal successors, (117), 6 states have internal predecessors, (117), 3 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-27 23:30:44,724 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 439 transitions. [2024-11-27 23:30:44,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-11-27 23:30:44,726 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:30:44,726 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:30:44,738 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-27 23:30:44,926 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:30:44,927 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr64ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 23:30:44,927 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:30:44,927 INFO L85 PathProgramCache]: Analyzing trace with hash -543601141, now seen corresponding path program 1 times [2024-11-27 23:30:44,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:30:44,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917505408] [2024-11-27 23:30:44,927 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:30:44,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:30:44,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:30:44,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1168758365] [2024-11-27 23:30:44,957 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:30:44,957 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:30:44,958 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:30:44,960 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:30:44,967 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-27 23:30:45,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:30:45,037 INFO L256 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-27 23:30:45,040 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:30:46,918 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-27 23:30:46,918 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:30:47,909 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-27 23:30:47,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:30:47,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917505408] [2024-11-27 23:30:47,909 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:30:47,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1168758365] [2024-11-27 23:30:47,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1168758365] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:30:47,910 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 23:30:47,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 10 [2024-11-27 23:30:47,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063512871] [2024-11-27 23:30:47,910 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 23:30:47,911 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-27 23:30:47,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:30:47,912 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-27 23:30:47,912 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-27 23:30:47,913 INFO L87 Difference]: Start difference. First operand 403 states and 439 transitions. Second operand has 11 states, 10 states have (on average 23.6) internal successors, (236), 11 states have internal predecessors, (236), 4 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2024-11-27 23:30:50,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:30:50,680 INFO L93 Difference]: Finished difference Result 411 states and 439 transitions. [2024-11-27 23:30:50,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-27 23:30:50,680 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 23.6) internal successors, (236), 11 states have internal predecessors, (236), 4 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) Word has length 172 [2024-11-27 23:30:50,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:30:50,682 INFO L225 Difference]: With dead ends: 411 [2024-11-27 23:30:50,682 INFO L226 Difference]: Without dead ends: 403 [2024-11-27 23:30:50,682 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 348 GetRequests, 333 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=92, Invalid=180, Unknown=0, NotChecked=0, Total=272 [2024-11-27 23:30:50,683 INFO L435 NwaCegarLoop]: 87 mSDtfsCounter, 425 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 1249 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 430 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 1279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-27 23:30:50,683 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [430 Valid, 270 Invalid, 1279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1249 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-27 23:30:50,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2024-11-27 23:30:50,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 403. [2024-11-27 23:30:50,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 403 states, 300 states have (on average 1.2833333333333334) internal successors, (385), 378 states have internal predecessors, (385), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-27 23:30:50,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 431 transitions. [2024-11-27 23:30:50,708 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 431 transitions. Word has length 172 [2024-11-27 23:30:50,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:30:50,708 INFO L471 AbstractCegarLoop]: Abstraction has 403 states and 431 transitions. [2024-11-27 23:30:50,709 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 23.6) internal successors, (236), 11 states have internal predecessors, (236), 4 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2024-11-27 23:30:50,709 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 431 transitions. [2024-11-27 23:30:50,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2024-11-27 23:30:50,710 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:30:50,710 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-27 23:30:50,721 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-27 23:30:50,915 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-27 23:30:50,916 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr78ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 23:30:50,916 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:30:50,916 INFO L85 PathProgramCache]: Analyzing trace with hash -1798400636, now seen corresponding path program 1 times [2024-11-27 23:30:50,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:30:50,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316378541] [2024-11-27 23:30:50,917 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:30:50,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:30:50,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:30:50,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1141871134] [2024-11-27 23:30:50,963 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:30:50,963 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:30:50,963 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:30:50,965 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:30:50,969 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-27 23:30:51,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:30:51,054 INFO L256 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-27 23:30:51,059 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:30:52,133 INFO L134 CoverageAnalysis]: Checked inductivity of 316 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-27 23:30:52,133 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:30:52,816 INFO L134 CoverageAnalysis]: Checked inductivity of 316 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-27 23:30:52,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:30:52,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316378541] [2024-11-27 23:30:52,816 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:30:52,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1141871134] [2024-11-27 23:30:52,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1141871134] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:30:52,817 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 23:30:52,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2024-11-27 23:30:52,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303231516] [2024-11-27 23:30:52,817 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 23:30:52,818 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-27 23:30:52,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:30:52,819 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-27 23:30:52,819 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2024-11-27 23:30:52,819 INFO L87 Difference]: Start difference. First operand 403 states and 431 transitions. Second operand has 14 states, 13 states have (on average 20.153846153846153) internal successors, (262), 14 states have internal predecessors, (262), 6 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 6 states have call predecessors, (24), 6 states have call successors, (24) [2024-11-27 23:30:54,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:30:54,845 INFO L93 Difference]: Finished difference Result 477 states and 540 transitions. [2024-11-27 23:30:54,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-27 23:30:54,845 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 20.153846153846153) internal successors, (262), 14 states have internal predecessors, (262), 6 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 6 states have call predecessors, (24), 6 states have call successors, (24) Word has length 191 [2024-11-27 23:30:54,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:30:54,847 INFO L225 Difference]: With dead ends: 477 [2024-11-27 23:30:54,847 INFO L226 Difference]: Without dead ends: 437 [2024-11-27 23:30:54,847 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 385 GetRequests, 368 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=114, Invalid=228, Unknown=0, NotChecked=0, Total=342 [2024-11-27 23:30:54,848 INFO L435 NwaCegarLoop]: 56 mSDtfsCounter, 220 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 2165 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 2190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 2165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-27 23:30:54,848 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [223 Valid, 314 Invalid, 2190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 2165 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-27 23:30:54,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2024-11-27 23:30:54,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 435. [2024-11-27 23:30:54,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 435 states, 328 states have (on average 1.350609756097561) internal successors, (443), 406 states have internal predecessors, (443), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-27 23:30:54,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 435 states to 435 states and 497 transitions. [2024-11-27 23:30:54,874 INFO L78 Accepts]: Start accepts. Automaton has 435 states and 497 transitions. Word has length 191 [2024-11-27 23:30:54,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:30:54,874 INFO L471 AbstractCegarLoop]: Abstraction has 435 states and 497 transitions. [2024-11-27 23:30:54,874 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 20.153846153846153) internal successors, (262), 14 states have internal predecessors, (262), 6 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 6 states have call predecessors, (24), 6 states have call successors, (24) [2024-11-27 23:30:54,875 INFO L276 IsEmpty]: Start isEmpty. Operand 435 states and 497 transitions. [2024-11-27 23:30:54,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2024-11-27 23:30:54,876 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:30:54,876 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-27 23:30:54,885 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-11-27 23:30:55,080 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-27 23:30:55,081 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 23:30:55,082 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:30:55,082 INFO L85 PathProgramCache]: Analyzing trace with hash 153847584, now seen corresponding path program 1 times [2024-11-27 23:30:55,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:30:55,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723326918] [2024-11-27 23:30:55,082 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:30:55,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:30:55,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:30:55,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [851160204] [2024-11-27 23:30:55,123 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:30:55,123 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:30:55,123 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:30:55,125 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:30:55,129 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-27 23:30:55,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:30:55,224 INFO L256 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 23:30:55,226 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:30:55,427 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-27 23:30:55,427 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:30:55,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:30:55,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723326918] [2024-11-27 23:30:55,513 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:30:55,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [851160204] [2024-11-27 23:30:55,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [851160204] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:30:55,513 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:30:55,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2024-11-27 23:30:55,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586354373] [2024-11-27 23:30:55,513 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 23:30:55,514 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:30:55,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:30:55,514 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:30:55,514 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-27 23:30:55,514 INFO L87 Difference]: Start difference. First operand 435 states and 497 transitions. Second operand has 5 states, 4 states have (on average 33.75) internal successors, (135), 5 states have internal predecessors, (135), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-27 23:30:55,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:30:55,670 INFO L93 Difference]: Finished difference Result 573 states and 602 transitions. [2024-11-27 23:30:55,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 23:30:55,671 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 33.75) internal successors, (135), 5 states have internal predecessors, (135), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 192 [2024-11-27 23:30:55,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:30:55,673 INFO L225 Difference]: With dead ends: 573 [2024-11-27 23:30:55,673 INFO L226 Difference]: Without dead ends: 572 [2024-11-27 23:30:55,674 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 224 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-27 23:30:55,674 INFO L435 NwaCegarLoop]: 219 mSDtfsCounter, 188 mSDsluCounter, 625 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 844 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:30:55,674 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 844 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:30:55,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2024-11-27 23:30:55,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 435. [2024-11-27 23:30:55,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 435 states, 328 states have (on average 1.3475609756097562) internal successors, (442), 406 states have internal predecessors, (442), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-27 23:30:55,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 435 states to 435 states and 496 transitions. [2024-11-27 23:30:55,699 INFO L78 Accepts]: Start accepts. Automaton has 435 states and 496 transitions. Word has length 192 [2024-11-27 23:30:55,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:30:55,699 INFO L471 AbstractCegarLoop]: Abstraction has 435 states and 496 transitions. [2024-11-27 23:30:55,700 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 33.75) internal successors, (135), 5 states have internal predecessors, (135), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-27 23:30:55,700 INFO L276 IsEmpty]: Start isEmpty. Operand 435 states and 496 transitions. [2024-11-27 23:30:55,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2024-11-27 23:30:55,701 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:30:55,701 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-27 23:30:55,710 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-11-27 23:30:55,901 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-27 23:30:55,901 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 23:30:55,902 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:30:55,902 INFO L85 PathProgramCache]: Analyzing trace with hash -2112051396, now seen corresponding path program 2 times [2024-11-27 23:30:55,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:30:55,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450445459] [2024-11-27 23:30:55,902 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:30:55,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:30:55,944 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 23:30:55,944 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 23:30:55,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [157256098] [2024-11-27 23:30:55,946 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:30:55,946 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:30:55,946 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:30:55,948 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:30:55,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-27 23:30:56,086 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 23:30:56,087 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:30:56,088 INFO L256 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-27 23:30:56,094 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:30:56,783 INFO L134 CoverageAnalysis]: Checked inductivity of 418 backedges. 0 proven. 106 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-27 23:30:56,783 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:30:57,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:30:57,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450445459] [2024-11-27 23:30:57,189 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:30:57,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [157256098] [2024-11-27 23:30:57,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [157256098] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:30:57,189 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:30:57,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-27 23:30:57,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468569552] [2024-11-27 23:30:57,190 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 23:30:57,190 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-27 23:30:57,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:30:57,190 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-27 23:30:57,191 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2024-11-27 23:30:57,191 INFO L87 Difference]: Start difference. First operand 435 states and 496 transitions. Second operand has 9 states, 8 states have (on average 17.125) internal successors, (137), 9 states have internal predecessors, (137), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-27 23:30:58,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:30:58,276 INFO L93 Difference]: Finished difference Result 528 states and 608 transitions. [2024-11-27 23:30:58,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 23:30:58,276 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 17.125) internal successors, (137), 9 states have internal predecessors, (137), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 199 [2024-11-27 23:30:58,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:30:58,278 INFO L225 Difference]: With dead ends: 528 [2024-11-27 23:30:58,278 INFO L226 Difference]: Without dead ends: 507 [2024-11-27 23:30:58,279 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 233 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2024-11-27 23:30:58,279 INFO L435 NwaCegarLoop]: 121 mSDtfsCounter, 121 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 1769 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 446 SdHoareTripleChecker+Invalid, 1789 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1769 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:30:58,279 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 446 Invalid, 1789 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 1769 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-27 23:30:58,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2024-11-27 23:30:58,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 495. [2024-11-27 23:30:58,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 495 states, 385 states have (on average 1.335064935064935) internal successors, (514), 463 states have internal predecessors, (514), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-27 23:30:58,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 574 transitions. [2024-11-27 23:30:58,323 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 574 transitions. Word has length 199 [2024-11-27 23:30:58,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:30:58,323 INFO L471 AbstractCegarLoop]: Abstraction has 495 states and 574 transitions. [2024-11-27 23:30:58,323 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 17.125) internal successors, (137), 9 states have internal predecessors, (137), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-27 23:30:58,324 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 574 transitions. [2024-11-27 23:30:58,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2024-11-27 23:30:58,325 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:30:58,325 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-27 23:30:58,334 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-27 23:30:58,525 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-27 23:30:58,526 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 23:30:58,529 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:30:58,529 INFO L85 PathProgramCache]: Analyzing trace with hash -1049083744, now seen corresponding path program 2 times [2024-11-27 23:30:58,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:30:58,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757159197] [2024-11-27 23:30:58,529 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:30:58,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:30:58,556 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 23:30:58,557 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:30:58,784 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 108 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-27 23:30:58,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:30:58,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757159197] [2024-11-27 23:30:58,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1757159197] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:30:58,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1912236095] [2024-11-27 23:30:58,785 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:30:58,785 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:30:58,785 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:30:58,787 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:30:58,791 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-27 23:30:58,871 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 23:30:58,871 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:30:58,873 INFO L256 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-27 23:30:58,876 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:30:59,467 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 108 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-27 23:30:59,468 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:30:59,770 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 108 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-27 23:30:59,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1912236095] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:30:59,770 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 23:30:59,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 12 [2024-11-27 23:30:59,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335319356] [2024-11-27 23:30:59,771 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 23:30:59,771 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-27 23:30:59,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:30:59,772 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-27 23:30:59,772 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2024-11-27 23:30:59,772 INFO L87 Difference]: Start difference. First operand 495 states and 574 transitions. Second operand has 13 states, 12 states have (on average 31.416666666666668) internal successors, (377), 13 states have internal predecessors, (377), 8 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 8 states have call predecessors, (36), 8 states have call successors, (36) [2024-11-27 23:31:01,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:31:01,312 INFO L93 Difference]: Finished difference Result 495 states and 574 transitions. [2024-11-27 23:31:01,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 23:31:01,313 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 31.416666666666668) internal successors, (377), 13 states have internal predecessors, (377), 8 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 8 states have call predecessors, (36), 8 states have call successors, (36) Word has length 200 [2024-11-27 23:31:01,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:31:01,315 INFO L225 Difference]: With dead ends: 495 [2024-11-27 23:31:01,315 INFO L226 Difference]: Without dead ends: 491 [2024-11-27 23:31:01,315 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 408 GetRequests, 392 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=95, Invalid=211, Unknown=0, NotChecked=0, Total=306 [2024-11-27 23:31:01,315 INFO L435 NwaCegarLoop]: 121 mSDtfsCounter, 426 mSDsluCounter, 435 mSDsCounter, 0 mSdLazyCounter, 1280 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 426 SdHoareTripleChecker+Valid, 556 SdHoareTripleChecker+Invalid, 1312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-27 23:31:01,315 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [426 Valid, 556 Invalid, 1312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1280 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-27 23:31:01,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2024-11-27 23:31:01,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 491. [2024-11-27 23:31:01,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 491 states, 385 states have (on average 1.3142857142857143) internal successors, (506), 459 states have internal predecessors, (506), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-27 23:31:01,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 566 transitions. [2024-11-27 23:31:01,349 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 566 transitions. Word has length 200 [2024-11-27 23:31:01,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:31:01,350 INFO L471 AbstractCegarLoop]: Abstraction has 491 states and 566 transitions. [2024-11-27 23:31:01,350 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 31.416666666666668) internal successors, (377), 13 states have internal predecessors, (377), 8 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 8 states have call predecessors, (36), 8 states have call successors, (36) [2024-11-27 23:31:01,350 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 566 transitions. [2024-11-27 23:31:01,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2024-11-27 23:31:01,352 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:31:01,352 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-27 23:31:01,363 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-27 23:31:01,552 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:31:01,553 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 23:31:01,553 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:31:01,553 INFO L85 PathProgramCache]: Analyzing trace with hash 1838142398, now seen corresponding path program 2 times [2024-11-27 23:31:01,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:31:01,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536772641] [2024-11-27 23:31:01,554 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:31:01,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:31:01,583 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 23:31:01,583 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:31:01,842 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 0 proven. 110 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-27 23:31:01,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:31:01,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536772641] [2024-11-27 23:31:01,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1536772641] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:31:01,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [744445960] [2024-11-27 23:31:01,843 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:31:01,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:31:01,843 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:31:01,845 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:31:01,849 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-27 23:31:01,947 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 23:31:01,948 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:31:01,949 INFO L256 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-27 23:31:01,955 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:31:02,557 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 0 proven. 110 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-27 23:31:02,557 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:31:02,897 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 0 proven. 110 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-27 23:31:02,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [744445960] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:31:02,898 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 23:31:02,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 12 [2024-11-27 23:31:02,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124055867] [2024-11-27 23:31:02,898 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 23:31:02,899 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-27 23:31:02,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:31:02,899 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-27 23:31:02,900 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2024-11-27 23:31:02,900 INFO L87 Difference]: Start difference. First operand 491 states and 566 transitions. Second operand has 13 states, 12 states have (on average 31.583333333333332) internal successors, (379), 13 states have internal predecessors, (379), 8 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 8 states have call predecessors, (36), 8 states have call successors, (36) [2024-11-27 23:31:03,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:31:03,948 INFO L93 Difference]: Finished difference Result 548 states and 613 transitions. [2024-11-27 23:31:03,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-27 23:31:03,949 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 31.583333333333332) internal successors, (379), 13 states have internal predecessors, (379), 8 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 8 states have call predecessors, (36), 8 states have call successors, (36) Word has length 201 [2024-11-27 23:31:03,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:31:03,950 INFO L225 Difference]: With dead ends: 548 [2024-11-27 23:31:03,950 INFO L226 Difference]: Without dead ends: 546 [2024-11-27 23:31:03,951 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 409 GetRequests, 394 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=103, Invalid=169, Unknown=0, NotChecked=0, Total=272 [2024-11-27 23:31:03,951 INFO L435 NwaCegarLoop]: 102 mSDtfsCounter, 520 mSDsluCounter, 503 mSDsCounter, 0 mSdLazyCounter, 1113 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 527 SdHoareTripleChecker+Valid, 605 SdHoareTripleChecker+Invalid, 1140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-27 23:31:03,951 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [527 Valid, 605 Invalid, 1140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1113 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-27 23:31:03,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 546 states. [2024-11-27 23:31:03,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 546 to 518. [2024-11-27 23:31:03,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 518 states, 409 states have (on average 1.2982885085574571) internal successors, (531), 483 states have internal predecessors, (531), 33 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2024-11-27 23:31:03,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 518 states and 597 transitions. [2024-11-27 23:31:03,988 INFO L78 Accepts]: Start accepts. Automaton has 518 states and 597 transitions. Word has length 201 [2024-11-27 23:31:03,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:31:03,989 INFO L471 AbstractCegarLoop]: Abstraction has 518 states and 597 transitions. [2024-11-27 23:31:03,989 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 31.583333333333332) internal successors, (379), 13 states have internal predecessors, (379), 8 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 8 states have call predecessors, (36), 8 states have call successors, (36) [2024-11-27 23:31:03,989 INFO L276 IsEmpty]: Start isEmpty. Operand 518 states and 597 transitions. [2024-11-27 23:31:03,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2024-11-27 23:31:03,990 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:31:03,990 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-27 23:31:04,001 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-11-27 23:31:04,191 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:31:04,191 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 23:31:04,191 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:31:04,192 INFO L85 PathProgramCache]: Analyzing trace with hash 1223288896, now seen corresponding path program 1 times [2024-11-27 23:31:04,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:31:04,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846043753] [2024-11-27 23:31:04,192 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:31:04,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:31:04,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:31:04,508 INFO L134 CoverageAnalysis]: Checked inductivity of 426 backedges. 0 proven. 114 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-27 23:31:04,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:31:04,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846043753] [2024-11-27 23:31:04,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [846043753] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:31:04,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [332185024] [2024-11-27 23:31:04,509 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:31:04,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:31:04,509 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:31:04,511 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:31:04,515 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-27 23:31:04,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:31:04,603 INFO L256 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-27 23:31:04,608 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:31:05,253 INFO L134 CoverageAnalysis]: Checked inductivity of 426 backedges. 0 proven. 114 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-27 23:31:05,254 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:31:05,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [332185024] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:31:05,348 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 23:31:05,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2024-11-27 23:31:05,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166841017] [2024-11-27 23:31:05,348 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 23:31:05,348 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-27 23:31:05,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:31:05,349 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-27 23:31:05,349 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2024-11-27 23:31:05,349 INFO L87 Difference]: Start difference. First operand 518 states and 597 transitions. Second operand has 11 states, 10 states have (on average 25.3) internal successors, (253), 11 states have internal predecessors, (253), 5 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 5 states have call predecessors, (23), 5 states have call successors, (23) [2024-11-27 23:31:07,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:31:07,556 INFO L93 Difference]: Finished difference Result 518 states and 597 transitions. [2024-11-27 23:31:07,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-27 23:31:07,556 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 25.3) internal successors, (253), 11 states have internal predecessors, (253), 5 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 5 states have call predecessors, (23), 5 states have call successors, (23) Word has length 203 [2024-11-27 23:31:07,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:31:07,558 INFO L225 Difference]: With dead ends: 518 [2024-11-27 23:31:07,558 INFO L226 Difference]: Without dead ends: 506 [2024-11-27 23:31:07,558 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=112, Invalid=308, Unknown=0, NotChecked=0, Total=420 [2024-11-27 23:31:07,559 INFO L435 NwaCegarLoop]: 121 mSDtfsCounter, 689 mSDsluCounter, 455 mSDsCounter, 0 mSdLazyCounter, 1274 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 689 SdHoareTripleChecker+Valid, 576 SdHoareTripleChecker+Invalid, 1335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 1274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:31:07,559 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [689 Valid, 576 Invalid, 1335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 1274 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-27 23:31:07,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 506 states. [2024-11-27 23:31:07,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 506 to 506. [2024-11-27 23:31:07,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 506 states, 409 states have (on average 1.2616136919315404) internal successors, (516), 471 states have internal predecessors, (516), 33 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2024-11-27 23:31:07,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 506 states and 582 transitions. [2024-11-27 23:31:07,592 INFO L78 Accepts]: Start accepts. Automaton has 506 states and 582 transitions. Word has length 203 [2024-11-27 23:31:07,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:31:07,592 INFO L471 AbstractCegarLoop]: Abstraction has 506 states and 582 transitions. [2024-11-27 23:31:07,593 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 25.3) internal successors, (253), 11 states have internal predecessors, (253), 5 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 5 states have call predecessors, (23), 5 states have call successors, (23) [2024-11-27 23:31:07,593 INFO L276 IsEmpty]: Start isEmpty. Operand 506 states and 582 transitions. [2024-11-27 23:31:07,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2024-11-27 23:31:07,594 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:31:07,594 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 3, 3, 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, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-27 23:31:07,603 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-11-27 23:31:07,794 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2024-11-27 23:31:07,795 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 23:31:07,795 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:31:07,795 INFO L85 PathProgramCache]: Analyzing trace with hash 202093542, now seen corresponding path program 1 times [2024-11-27 23:31:07,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:31:07,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266713346] [2024-11-27 23:31:07,796 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:31:07,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:31:07,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:31:07,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1760540617] [2024-11-27 23:31:07,831 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:31:07,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:31:07,832 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:31:07,834 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:31:07,837 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-27 23:31:07,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:31:07,923 INFO L256 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-27 23:31:07,927 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:31:08,772 INFO L134 CoverageAnalysis]: Checked inductivity of 432 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-27 23:31:08,772 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:31:09,331 INFO L134 CoverageAnalysis]: Checked inductivity of 432 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-27 23:31:09,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:31:09,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266713346] [2024-11-27 23:31:09,332 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:31:09,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1760540617] [2024-11-27 23:31:09,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1760540617] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:31:09,332 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 23:31:09,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2024-11-27 23:31:09,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843310985] [2024-11-27 23:31:09,332 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 23:31:09,333 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-27 23:31:09,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:31:09,334 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-27 23:31:09,334 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=162, Unknown=0, NotChecked=0, Total=240 [2024-11-27 23:31:09,334 INFO L87 Difference]: Start difference. First operand 506 states and 582 transitions. Second operand has 16 states, 15 states have (on average 18.8) internal successors, (282), 16 states have internal predecessors, (282), 6 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 6 states have call predecessors, (26), 6 states have call successors, (26) [2024-11-27 23:31:13,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:31:13,378 INFO L93 Difference]: Finished difference Result 809 states and 986 transitions. [2024-11-27 23:31:13,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-27 23:31:13,379 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 18.8) internal successors, (282), 16 states have internal predecessors, (282), 6 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 6 states have call predecessors, (26), 6 states have call successors, (26) Word has length 206 [2024-11-27 23:31:13,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:31:13,385 INFO L225 Difference]: With dead ends: 809 [2024-11-27 23:31:13,385 INFO L226 Difference]: Without dead ends: 724 [2024-11-27 23:31:13,385 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 417 GetRequests, 396 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=179, Invalid=327, Unknown=0, NotChecked=0, Total=506 [2024-11-27 23:31:13,386 INFO L435 NwaCegarLoop]: 122 mSDtfsCounter, 1403 mSDsluCounter, 822 mSDsCounter, 0 mSdLazyCounter, 2548 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1417 SdHoareTripleChecker+Valid, 944 SdHoareTripleChecker+Invalid, 2685 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 2548 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-11-27 23:31:13,386 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1417 Valid, 944 Invalid, 2685 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 2548 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2024-11-27 23:31:13,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 724 states. [2024-11-27 23:31:13,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 724 to 523. [2024-11-27 23:31:13,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 523 states, 425 states have (on average 1.2352941176470589) internal successors, (525), 486 states have internal predecessors, (525), 35 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2024-11-27 23:31:13,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 523 states to 523 states and 595 transitions. [2024-11-27 23:31:13,431 INFO L78 Accepts]: Start accepts. Automaton has 523 states and 595 transitions. Word has length 206 [2024-11-27 23:31:13,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:31:13,431 INFO L471 AbstractCegarLoop]: Abstraction has 523 states and 595 transitions. [2024-11-27 23:31:13,432 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 18.8) internal successors, (282), 16 states have internal predecessors, (282), 6 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 6 states have call predecessors, (26), 6 states have call successors, (26) [2024-11-27 23:31:13,432 INFO L276 IsEmpty]: Start isEmpty. Operand 523 states and 595 transitions. [2024-11-27 23:31:13,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2024-11-27 23:31:13,433 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:31:13,433 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:31:13,443 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2024-11-27 23:31:13,637 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2024-11-27 23:31:13,637 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr60ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 23:31:13,638 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:31:13,638 INFO L85 PathProgramCache]: Analyzing trace with hash 809765124, now seen corresponding path program 2 times [2024-11-27 23:31:13,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:31:13,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302577877] [2024-11-27 23:31:13,638 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:31:13,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:31:13,686 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 23:31:13,687 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 23:31:13,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1207344334] [2024-11-27 23:31:13,688 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:31:13,689 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:31:13,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:31:13,691 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:31:13,694 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-27 23:31:13,803 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 23:31:13,804 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:31:13,806 INFO L256 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-27 23:31:13,810 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:31:14,926 INFO L134 CoverageAnalysis]: Checked inductivity of 644 backedges. 0 proven. 164 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-27 23:31:14,926 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:31:15,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:31:15,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302577877] [2024-11-27 23:31:15,522 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:31:15,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1207344334] [2024-11-27 23:31:15,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1207344334] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:31:15,523 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:31:15,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-27 23:31:15,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376446566] [2024-11-27 23:31:15,523 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 23:31:15,523 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-27 23:31:15,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:31:15,524 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-27 23:31:15,524 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2024-11-27 23:31:15,524 INFO L87 Difference]: Start difference. First operand 523 states and 595 transitions. Second operand has 9 states, 8 states have (on average 21.375) internal successors, (171), 9 states have internal predecessors, (171), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2024-11-27 23:31:16,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:31:16,895 INFO L93 Difference]: Finished difference Result 523 states and 595 transitions. [2024-11-27 23:31:16,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-27 23:31:16,896 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 21.375) internal successors, (171), 9 states have internal predecessors, (171), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) Word has length 248 [2024-11-27 23:31:16,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:31:16,898 INFO L225 Difference]: With dead ends: 523 [2024-11-27 23:31:16,898 INFO L226 Difference]: Without dead ends: 520 [2024-11-27 23:31:16,898 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 348 GetRequests, 330 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=121, Invalid=259, Unknown=0, NotChecked=0, Total=380 [2024-11-27 23:31:16,898 INFO L435 NwaCegarLoop]: 47 mSDtfsCounter, 567 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 1153 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 567 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 1194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-27 23:31:16,898 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [567 Valid, 172 Invalid, 1194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1153 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-27 23:31:16,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states. [2024-11-27 23:31:16,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 520. [2024-11-27 23:31:16,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 520 states, 425 states have (on average 1.2211764705882353) internal successors, (519), 483 states have internal predecessors, (519), 35 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2024-11-27 23:31:16,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 520 states and 589 transitions. [2024-11-27 23:31:16,933 INFO L78 Accepts]: Start accepts. Automaton has 520 states and 589 transitions. Word has length 248 [2024-11-27 23:31:16,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:31:16,934 INFO L471 AbstractCegarLoop]: Abstraction has 520 states and 589 transitions. [2024-11-27 23:31:16,934 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 21.375) internal successors, (171), 9 states have internal predecessors, (171), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2024-11-27 23:31:16,934 INFO L276 IsEmpty]: Start isEmpty. Operand 520 states and 589 transitions. [2024-11-27 23:31:16,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2024-11-27 23:31:16,935 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:31:16,936 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:31:16,945 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2024-11-27 23:31:17,136 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2024-11-27 23:31:17,136 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr61ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 23:31:17,137 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:31:17,137 INFO L85 PathProgramCache]: Analyzing trace with hash -667084747, now seen corresponding path program 2 times [2024-11-27 23:31:17,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:31:17,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172480020] [2024-11-27 23:31:17,137 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:31:17,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:31:17,189 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 23:31:17,190 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 23:31:17,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [866020465] [2024-11-27 23:31:17,191 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:31:17,191 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:31:17,191 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:31:17,193 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:31:17,196 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-27 23:31:17,294 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 23:31:17,294 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:31:17,296 INFO L256 TraceCheckSpWp]: Trace formula consists of 361 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-27 23:31:17,299 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:31:18,302 INFO L134 CoverageAnalysis]: Checked inductivity of 644 backedges. 0 proven. 164 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-27 23:31:18,302 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:31:19,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:31:19,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172480020] [2024-11-27 23:31:19,203 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:31:19,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [866020465] [2024-11-27 23:31:19,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [866020465] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:31:19,203 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:31:19,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-11-27 23:31:19,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83469589] [2024-11-27 23:31:19,203 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 23:31:19,204 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-27 23:31:19,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:31:19,204 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-27 23:31:19,204 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2024-11-27 23:31:19,204 INFO L87 Difference]: Start difference. First operand 520 states and 589 transitions. Second operand has 10 states, 9 states have (on average 19.11111111111111) internal successors, (172), 10 states have internal predecessors, (172), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2024-11-27 23:31:20,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:31:20,117 INFO L93 Difference]: Finished difference Result 521 states and 589 transitions. [2024-11-27 23:31:20,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-27 23:31:20,117 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 19.11111111111111) internal successors, (172), 10 states have internal predecessors, (172), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) Word has length 249 [2024-11-27 23:31:20,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:31:20,119 INFO L225 Difference]: With dead ends: 521 [2024-11-27 23:31:20,119 INFO L226 Difference]: Without dead ends: 520 [2024-11-27 23:31:20,119 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 344 GetRequests, 330 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2024-11-27 23:31:20,119 INFO L435 NwaCegarLoop]: 181 mSDtfsCounter, 58 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 1297 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 1300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-27 23:31:20,120 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 473 Invalid, 1300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1297 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-27 23:31:20,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states. [2024-11-27 23:31:20,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 520. [2024-11-27 23:31:20,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 520 states, 425 states have (on average 1.2188235294117646) internal successors, (518), 483 states have internal predecessors, (518), 35 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2024-11-27 23:31:20,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 520 states and 588 transitions. [2024-11-27 23:31:20,158 INFO L78 Accepts]: Start accepts. Automaton has 520 states and 588 transitions. Word has length 249 [2024-11-27 23:31:20,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:31:20,159 INFO L471 AbstractCegarLoop]: Abstraction has 520 states and 588 transitions. [2024-11-27 23:31:20,159 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 19.11111111111111) internal successors, (172), 10 states have internal predecessors, (172), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2024-11-27 23:31:20,159 INFO L276 IsEmpty]: Start isEmpty. Operand 520 states and 588 transitions. [2024-11-27 23:31:20,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2024-11-27 23:31:20,163 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:31:20,163 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:31:20,174 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2024-11-27 23:31:20,367 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2024-11-27 23:31:20,368 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr64ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 23:31:20,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:31:20,368 INFO L85 PathProgramCache]: Analyzing trace with hash -307833528, now seen corresponding path program 2 times [2024-11-27 23:31:20,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:31:20,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772239139] [2024-11-27 23:31:20,368 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:31:20,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:31:20,411 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 23:31:20,412 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 23:31:20,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1316890236] [2024-11-27 23:31:20,413 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:31:20,413 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:31:20,413 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:31:20,415 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:31:20,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-27 23:31:20,588 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 23:31:20,588 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:31:20,590 INFO L256 TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-27 23:31:20,597 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:31:23,315 INFO L134 CoverageAnalysis]: Checked inductivity of 644 backedges. 0 proven. 164 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-27 23:31:23,316 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:31:24,978 INFO L134 CoverageAnalysis]: Checked inductivity of 644 backedges. 0 proven. 164 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-27 23:31:24,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:31:24,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772239139] [2024-11-27 23:31:24,978 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:31:24,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1316890236] [2024-11-27 23:31:24,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1316890236] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:31:24,978 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 23:31:24,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 18 [2024-11-27 23:31:24,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387268874] [2024-11-27 23:31:24,979 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 23:31:24,979 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-27 23:31:24,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:31:24,980 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-27 23:31:24,980 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=244, Unknown=0, NotChecked=0, Total=342 [2024-11-27 23:31:24,980 INFO L87 Difference]: Start difference. First operand 520 states and 588 transitions. Second operand has 19 states, 18 states have (on average 19.22222222222222) internal successors, (346), 19 states have internal predecessors, (346), 6 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 6 states have call predecessors, (32), 6 states have call successors, (32) [2024-11-27 23:31:33,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:31:33,836 INFO L93 Difference]: Finished difference Result 542 states and 604 transitions. [2024-11-27 23:31:33,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-27 23:31:33,837 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 19.22222222222222) internal successors, (346), 19 states have internal predecessors, (346), 6 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 6 states have call predecessors, (32), 6 states have call successors, (32) Word has length 252 [2024-11-27 23:31:33,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:31:33,838 INFO L225 Difference]: With dead ends: 542 [2024-11-27 23:31:33,838 INFO L226 Difference]: Without dead ends: 536 [2024-11-27 23:31:33,839 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 512 GetRequests, 485 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=234, Invalid=578, Unknown=0, NotChecked=0, Total=812 [2024-11-27 23:31:33,839 INFO L435 NwaCegarLoop]: 55 mSDtfsCounter, 966 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 2622 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 971 SdHoareTripleChecker+Valid, 337 SdHoareTripleChecker+Invalid, 2697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 2622 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2024-11-27 23:31:33,839 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [971 Valid, 337 Invalid, 2697 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 2622 Invalid, 0 Unknown, 0 Unchecked, 7.2s Time] [2024-11-27 23:31:33,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2024-11-27 23:31:33,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 532. [2024-11-27 23:31:33,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 532 states, 436 states have (on average 1.2041284403669725) internal successors, (525), 494 states have internal predecessors, (525), 36 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-27 23:31:33,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 597 transitions. [2024-11-27 23:31:33,871 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 597 transitions. Word has length 252 [2024-11-27 23:31:33,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:31:33,871 INFO L471 AbstractCegarLoop]: Abstraction has 532 states and 597 transitions. [2024-11-27 23:31:33,871 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 19.22222222222222) internal successors, (346), 19 states have internal predecessors, (346), 6 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 6 states have call predecessors, (32), 6 states have call successors, (32) [2024-11-27 23:31:33,872 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 597 transitions. [2024-11-27 23:31:33,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2024-11-27 23:31:33,873 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:31:33,873 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1] [2024-11-27 23:31:33,880 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2024-11-27 23:31:34,074 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2024-11-27 23:31:34,074 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 23:31:34,074 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:31:34,075 INFO L85 PathProgramCache]: Analyzing trace with hash 2048187355, now seen corresponding path program 1 times [2024-11-27 23:31:34,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:31:34,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441417696] [2024-11-27 23:31:34,075 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:31:34,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:31:34,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:31:34,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [381659664] [2024-11-27 23:31:34,111 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:31:34,111 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:31:34,111 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:31:34,113 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:31:34,120 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-11-27 23:31:34,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:31:34,223 INFO L256 TraceCheckSpWp]: Trace formula consists of 381 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-27 23:31:34,227 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:31:34,522 INFO L134 CoverageAnalysis]: Checked inductivity of 699 backedges. 0 proven. 219 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-27 23:31:34,523 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:31:35,162 INFO L134 CoverageAnalysis]: Checked inductivity of 699 backedges. 0 proven. 219 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-27 23:31:35,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:31:35,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441417696] [2024-11-27 23:31:35,163 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:31:35,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [381659664] [2024-11-27 23:31:35,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [381659664] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:31:35,163 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 23:31:35,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2024-11-27 23:31:35,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917193210] [2024-11-27 23:31:35,163 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 23:31:35,165 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-27 23:31:35,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:31:35,166 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-27 23:31:35,166 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-11-27 23:31:35,166 INFO L87 Difference]: Start difference. First operand 532 states and 597 transitions. Second operand has 10 states, 9 states have (on average 40.22222222222222) internal successors, (362), 10 states have internal predecessors, (362), 8 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 8 states have call predecessors, (32), 8 states have call successors, (32) [2024-11-27 23:31:35,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:31:35,708 INFO L93 Difference]: Finished difference Result 669 states and 714 transitions. [2024-11-27 23:31:35,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 23:31:35,709 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 40.22222222222222) internal successors, (362), 10 states have internal predecessors, (362), 8 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 8 states have call predecessors, (32), 8 states have call successors, (32) Word has length 261 [2024-11-27 23:31:35,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:31:35,710 INFO L225 Difference]: With dead ends: 669 [2024-11-27 23:31:35,710 INFO L226 Difference]: Without dead ends: 667 [2024-11-27 23:31:35,711 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 522 GetRequests, 512 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=79, Unknown=0, NotChecked=0, Total=132 [2024-11-27 23:31:35,711 INFO L435 NwaCegarLoop]: 359 mSDtfsCounter, 1213 mSDsluCounter, 1133 mSDsCounter, 0 mSdLazyCounter, 493 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1224 SdHoareTripleChecker+Valid, 1492 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 493 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-27 23:31:35,711 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1224 Valid, 1492 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 493 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-27 23:31:35,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 667 states. [2024-11-27 23:31:35,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 667 to 531. [2024-11-27 23:31:35,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 531 states, 436 states have (on average 1.194954128440367) internal successors, (521), 493 states have internal predecessors, (521), 36 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-27 23:31:35,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 593 transitions. [2024-11-27 23:31:35,762 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 593 transitions. Word has length 261 [2024-11-27 23:31:35,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:31:35,762 INFO L471 AbstractCegarLoop]: Abstraction has 531 states and 593 transitions. [2024-11-27 23:31:35,763 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 40.22222222222222) internal successors, (362), 10 states have internal predecessors, (362), 8 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 8 states have call predecessors, (32), 8 states have call successors, (32) [2024-11-27 23:31:35,763 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 593 transitions. [2024-11-27 23:31:35,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2024-11-27 23:31:35,765 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:31:35,765 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:31:35,775 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2024-11-27 23:31:35,965 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2024-11-27 23:31:35,966 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr79ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 23:31:35,966 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:31:35,966 INFO L85 PathProgramCache]: Analyzing trace with hash 880452247, now seen corresponding path program 1 times [2024-11-27 23:31:35,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:31:35,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387578404] [2024-11-27 23:31:35,966 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:31:35,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:31:35,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:31:36,378 INFO L134 CoverageAnalysis]: Checked inductivity of 708 backedges. 0 proven. 164 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-27 23:31:36,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:31:36,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387578404] [2024-11-27 23:31:36,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387578404] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:31:36,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [837221017] [2024-11-27 23:31:36,378 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:31:36,378 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:31:36,379 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:31:36,383 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:31:36,386 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-11-27 23:31:36,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:31:36,505 INFO L256 TraceCheckSpWp]: Trace formula consists of 388 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-27 23:31:36,509 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:31:37,584 INFO L134 CoverageAnalysis]: Checked inductivity of 708 backedges. 52 proven. 112 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-27 23:31:37,585 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:31:37,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [837221017] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:31:37,707 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 23:31:37,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2024-11-27 23:31:37,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503805793] [2024-11-27 23:31:37,708 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 23:31:37,708 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-27 23:31:37,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:31:37,709 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-27 23:31:37,710 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=253, Unknown=0, NotChecked=0, Total=306 [2024-11-27 23:31:37,711 INFO L87 Difference]: Start difference. First operand 531 states and 593 transitions. Second operand has 16 states, 15 states have (on average 24.933333333333334) internal successors, (374), 16 states have internal predecessors, (374), 6 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 6 states have call predecessors, (34), 6 states have call successors, (34) [2024-11-27 23:31:39,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:31:39,934 INFO L93 Difference]: Finished difference Result 531 states and 593 transitions. [2024-11-27 23:31:39,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-27 23:31:39,935 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 24.933333333333334) internal successors, (374), 16 states have internal predecessors, (374), 6 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 6 states have call predecessors, (34), 6 states have call successors, (34) Word has length 272 [2024-11-27 23:31:39,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:31:39,936 INFO L225 Difference]: With dead ends: 531 [2024-11-27 23:31:39,937 INFO L226 Difference]: Without dead ends: 529 [2024-11-27 23:31:39,937 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 274 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=156, Invalid=600, Unknown=0, NotChecked=0, Total=756 [2024-11-27 23:31:39,939 INFO L435 NwaCegarLoop]: 62 mSDtfsCounter, 565 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 1900 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 565 SdHoareTripleChecker+Valid, 324 SdHoareTripleChecker+Invalid, 1942 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 1900 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:31:39,939 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [565 Valid, 324 Invalid, 1942 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 1900 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-27 23:31:39,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 529 states. [2024-11-27 23:31:39,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 529 to 529. [2024-11-27 23:31:39,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 529 states, 436 states have (on average 1.188073394495413) internal successors, (518), 491 states have internal predecessors, (518), 36 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-27 23:31:39,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 529 states to 529 states and 590 transitions. [2024-11-27 23:31:39,990 INFO L78 Accepts]: Start accepts. Automaton has 529 states and 590 transitions. Word has length 272 [2024-11-27 23:31:39,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:31:39,994 INFO L471 AbstractCegarLoop]: Abstraction has 529 states and 590 transitions. [2024-11-27 23:31:39,994 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 24.933333333333334) internal successors, (374), 16 states have internal predecessors, (374), 6 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 6 states have call predecessors, (34), 6 states have call successors, (34) [2024-11-27 23:31:39,994 INFO L276 IsEmpty]: Start isEmpty. Operand 529 states and 590 transitions. [2024-11-27 23:31:39,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2024-11-27 23:31:39,996 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:31:39,996 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:31:40,007 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2024-11-27 23:31:40,197 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2024-11-27 23:31:40,197 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr82ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 23:31:40,197 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:31:40,198 INFO L85 PathProgramCache]: Analyzing trace with hash 187836203, now seen corresponding path program 1 times [2024-11-27 23:31:40,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:31:40,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109124123] [2024-11-27 23:31:40,198 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:31:40,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:31:40,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:31:40,429 INFO L134 CoverageAnalysis]: Checked inductivity of 708 backedges. 164 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-27 23:31:40,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:31:40,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109124123] [2024-11-27 23:31:40,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1109124123] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:31:40,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:31:40,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 23:31:40,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767030736] [2024-11-27 23:31:40,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:31:40,432 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:31:40,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:31:40,433 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:31:40,433 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:31:40,433 INFO L87 Difference]: Start difference. First operand 529 states and 590 transitions. Second operand has 6 states, 5 states have (on average 38.6) internal successors, (193), 6 states have internal predecessors, (193), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-27 23:31:41,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:31:41,219 INFO L93 Difference]: Finished difference Result 529 states and 590 transitions. [2024-11-27 23:31:41,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 23:31:41,219 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 38.6) internal successors, (193), 6 states have internal predecessors, (193), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 275 [2024-11-27 23:31:41,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:31:41,221 INFO L225 Difference]: With dead ends: 529 [2024-11-27 23:31:41,221 INFO L226 Difference]: Without dead ends: 527 [2024-11-27 23:31:41,222 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-11-27 23:31:41,222 INFO L435 NwaCegarLoop]: 154 mSDtfsCounter, 253 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 508 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 332 SdHoareTripleChecker+Invalid, 524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 508 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-27 23:31:41,222 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [253 Valid, 332 Invalid, 524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 508 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-27 23:31:41,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 527 states. [2024-11-27 23:31:41,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 527 to 527. [2024-11-27 23:31:41,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 527 states, 436 states have (on average 1.1788990825688073) internal successors, (514), 489 states have internal predecessors, (514), 36 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-27 23:31:41,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 586 transitions. [2024-11-27 23:31:41,251 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 586 transitions. Word has length 275 [2024-11-27 23:31:41,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:31:41,251 INFO L471 AbstractCegarLoop]: Abstraction has 527 states and 586 transitions. [2024-11-27 23:31:41,251 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 38.6) internal successors, (193), 6 states have internal predecessors, (193), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-27 23:31:41,251 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 586 transitions. [2024-11-27 23:31:41,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2024-11-27 23:31:41,253 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:31:41,253 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:31:41,253 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-11-27 23:31:41,253 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr83ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 23:31:41,254 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:31:41,254 INFO L85 PathProgramCache]: Analyzing trace with hash 1527955227, now seen corresponding path program 1 times [2024-11-27 23:31:41,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:31:41,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12624707] [2024-11-27 23:31:41,254 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:31:41,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:31:41,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:31:41,619 INFO L134 CoverageAnalysis]: Checked inductivity of 708 backedges. 0 proven. 164 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-27 23:31:41,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:31:41,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12624707] [2024-11-27 23:31:41,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12624707] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:31:41,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2131657377] [2024-11-27 23:31:41,619 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:31:41,620 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:31:41,620 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:31:41,622 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:31:41,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-11-27 23:31:41,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:31:41,747 INFO L256 TraceCheckSpWp]: Trace formula consists of 392 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-27 23:31:41,751 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:31:42,619 INFO L134 CoverageAnalysis]: Checked inductivity of 708 backedges. 0 proven. 164 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-27 23:31:42,619 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:31:52,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2131657377] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:31:52,029 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 23:31:52,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2024-11-27 23:31:52,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494923015] [2024-11-27 23:31:52,029 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 23:31:52,030 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-27 23:31:52,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:31:52,031 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-27 23:31:52,031 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=352, Unknown=1, NotChecked=0, Total=420 [2024-11-27 23:31:52,031 INFO L87 Difference]: Start difference. First operand 527 states and 586 transitions. Second operand has 16 states, 15 states have (on average 25.466666666666665) internal successors, (382), 16 states have internal predecessors, (382), 6 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 6 states have call predecessors, (34), 6 states have call successors, (34) [2024-11-27 23:31:55,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:31:55,694 INFO L93 Difference]: Finished difference Result 527 states and 586 transitions. [2024-11-27 23:31:55,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-27 23:31:55,695 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 25.466666666666665) internal successors, (382), 16 states have internal predecessors, (382), 6 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 6 states have call predecessors, (34), 6 states have call successors, (34) Word has length 276 [2024-11-27 23:31:55,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:31:55,697 INFO L225 Difference]: With dead ends: 527 [2024-11-27 23:31:55,697 INFO L226 Difference]: Without dead ends: 491 [2024-11-27 23:31:55,698 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 415 GetRequests, 386 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 8.6s TimeCoverageRelationStatistics Valid=188, Invalid=741, Unknown=1, NotChecked=0, Total=930 [2024-11-27 23:31:55,698 INFO L435 NwaCegarLoop]: 62 mSDtfsCounter, 735 mSDsluCounter, 383 mSDsCounter, 0 mSdLazyCounter, 2466 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 735 SdHoareTripleChecker+Valid, 445 SdHoareTripleChecker+Invalid, 2525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 2466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-27 23:31:55,699 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [735 Valid, 445 Invalid, 2525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 2466 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-27 23:31:55,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2024-11-27 23:31:55,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 491. [2024-11-27 23:31:55,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 491 states, 404 states have (on average 1.183168316831683) internal successors, (478), 455 states have internal predecessors, (478), 34 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-27 23:31:55,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 546 transitions. [2024-11-27 23:31:55,736 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 546 transitions. Word has length 276 [2024-11-27 23:31:55,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:31:55,736 INFO L471 AbstractCegarLoop]: Abstraction has 491 states and 546 transitions. [2024-11-27 23:31:55,736 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 25.466666666666665) internal successors, (382), 16 states have internal predecessors, (382), 6 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 6 states have call predecessors, (34), 6 states have call successors, (34) [2024-11-27 23:31:55,737 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 546 transitions. [2024-11-27 23:31:55,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2024-11-27 23:31:55,738 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:31:55,738 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1] [2024-11-27 23:31:55,745 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2024-11-27 23:31:55,938 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2024-11-27 23:31:55,938 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 23:31:55,939 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:31:55,939 INFO L85 PathProgramCache]: Analyzing trace with hash -1331592737, now seen corresponding path program 3 times [2024-11-27 23:31:55,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:31:55,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760980168] [2024-11-27 23:31:55,939 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 23:31:55,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:31:56,008 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2024-11-27 23:31:56,009 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 23:31:56,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [352875444] [2024-11-27 23:31:56,010 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 23:31:56,011 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:31:56,011 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:31:56,017 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:31:56,020 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-11-27 23:31:56,117 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-27 23:31:56,117 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:31:56,123 INFO L256 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-27 23:31:56,133 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:32:54,283 INFO L134 CoverageAnalysis]: Checked inductivity of 861 backedges. 128 proven. 94 refuted. 0 times theorem prover too weak. 639 trivial. 0 not checked. [2024-11-27 23:32:54,283 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:32:56,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:32:56,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760980168] [2024-11-27 23:32:56,104 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:32:56,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [352875444] [2024-11-27 23:32:56,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [352875444] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:32:56,104 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:32:56,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-11-27 23:32:56,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038695232] [2024-11-27 23:32:56,104 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 23:32:56,105 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-27 23:32:56,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:32:56,105 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-27 23:32:56,106 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=406, Unknown=0, NotChecked=0, Total=506 [2024-11-27 23:32:56,106 INFO L87 Difference]: Start difference. First operand 491 states and 546 transitions. Second operand has 13 states, 12 states have (on average 7.833333333333333) internal successors, (94), 12 states have internal predecessors, (94), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2024-11-27 23:33:06,874 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 23:33:14,924 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 23:33:19,193 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.25s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 23:33:22,106 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.91s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 23:33:30,506 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.96s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 23:33:37,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:33:37,304 INFO L93 Difference]: Finished difference Result 493 states and 548 transitions. [2024-11-27 23:33:37,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-27 23:33:37,304 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 7.833333333333333) internal successors, (94), 12 states have internal predecessors, (94), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) Word has length 279 [2024-11-27 23:33:37,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:33:37,306 INFO L225 Difference]: With dead ends: 493 [2024-11-27 23:33:37,306 INFO L226 Difference]: Without dead ends: 480 [2024-11-27 23:33:37,307 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 331 GetRequests, 302 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 26.8s TimeCoverageRelationStatistics Valid=216, Invalid=714, Unknown=0, NotChecked=0, Total=930 [2024-11-27 23:33:37,307 INFO L435 NwaCegarLoop]: 25 mSDtfsCounter, 816 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 1307 mSolverCounterSat, 82 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 816 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 1391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 1307 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.6s IncrementalHoareTripleChecker+Time [2024-11-27 23:33:37,307 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [816 Valid, 171 Invalid, 1391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 1307 Invalid, 2 Unknown, 0 Unchecked, 22.6s Time] [2024-11-27 23:33:37,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2024-11-27 23:33:37,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 478. [2024-11-27 23:33:37,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 478 states, 404 states have (on average 1.131188118811881) internal successors, (457), 442 states have internal predecessors, (457), 34 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-27 23:33:37,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 525 transitions. [2024-11-27 23:33:37,342 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 525 transitions. Word has length 279 [2024-11-27 23:33:37,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:33:37,342 INFO L471 AbstractCegarLoop]: Abstraction has 478 states and 525 transitions. [2024-11-27 23:33:37,343 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 7.833333333333333) internal successors, (94), 12 states have internal predecessors, (94), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2024-11-27 23:33:37,343 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 525 transitions. [2024-11-27 23:33:37,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2024-11-27 23:33:37,344 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:33:37,344 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1] [2024-11-27 23:33:37,354 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2024-11-27 23:33:37,548 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable40 [2024-11-27 23:33:37,548 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 23:33:37,549 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:33:37,549 INFO L85 PathProgramCache]: Analyzing trace with hash -1365116635, now seen corresponding path program 1 times [2024-11-27 23:33:37,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:33:37,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668349016] [2024-11-27 23:33:37,549 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:33:37,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:33:37,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:33:37,829 INFO L134 CoverageAnalysis]: Checked inductivity of 879 backedges. 0 proven. 267 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-27 23:33:37,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:33:37,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668349016] [2024-11-27 23:33:37,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668349016] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:33:37,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [888362337] [2024-11-27 23:33:37,830 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:33:37,830 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:33:37,830 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:33:37,832 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:33:37,835 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-11-27 23:33:37,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:33:37,938 INFO L256 TraceCheckSpWp]: Trace formula consists of 413 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-27 23:33:37,943 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:33:38,607 INFO L134 CoverageAnalysis]: Checked inductivity of 879 backedges. 0 proven. 267 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-27 23:33:38,607 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:33:39,096 INFO L134 CoverageAnalysis]: Checked inductivity of 879 backedges. 0 proven. 267 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-27 23:33:39,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [888362337] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:33:39,096 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 23:33:39,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 18 [2024-11-27 23:33:39,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272959739] [2024-11-27 23:33:39,096 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 23:33:39,097 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-27 23:33:39,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:33:39,098 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-27 23:33:39,098 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=224, Unknown=0, NotChecked=0, Total=342 [2024-11-27 23:33:39,099 INFO L87 Difference]: Start difference. First operand 478 states and 525 transitions. Second operand has 19 states, 18 states have (on average 30.77777777777778) internal successors, (554), 19 states have internal predecessors, (554), 11 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 11 states have call predecessors, (51), 11 states have call successors, (51) [2024-11-27 23:33:41,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:33:41,276 INFO L93 Difference]: Finished difference Result 866 states and 1024 transitions. [2024-11-27 23:33:41,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-27 23:33:41,277 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 30.77777777777778) internal successors, (554), 19 states have internal predecessors, (554), 11 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 11 states have call predecessors, (51), 11 states have call successors, (51) Word has length 285 [2024-11-27 23:33:41,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:33:41,279 INFO L225 Difference]: With dead ends: 866 [2024-11-27 23:33:41,279 INFO L226 Difference]: Without dead ends: 859 [2024-11-27 23:33:41,280 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 584 GetRequests, 558 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 203 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=274, Invalid=482, Unknown=0, NotChecked=0, Total=756 [2024-11-27 23:33:41,280 INFO L435 NwaCegarLoop]: 72 mSDtfsCounter, 1203 mSDsluCounter, 674 mSDsCounter, 0 mSdLazyCounter, 1658 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1210 SdHoareTripleChecker+Valid, 746 SdHoareTripleChecker+Invalid, 1761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 1658 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-27 23:33:41,280 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1210 Valid, 746 Invalid, 1761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 1658 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-27 23:33:41,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 859 states. [2024-11-27 23:33:41,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 859 to 591. [2024-11-27 23:33:41,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 591 states, 513 states have (on average 1.1169590643274854) internal successors, (573), 545 states have internal predecessors, (573), 44 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-27 23:33:41,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 661 transitions. [2024-11-27 23:33:41,353 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 661 transitions. Word has length 285 [2024-11-27 23:33:41,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:33:41,354 INFO L471 AbstractCegarLoop]: Abstraction has 591 states and 661 transitions. [2024-11-27 23:33:41,354 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 30.77777777777778) internal successors, (554), 19 states have internal predecessors, (554), 11 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 11 states have call predecessors, (51), 11 states have call successors, (51) [2024-11-27 23:33:41,354 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 661 transitions. [2024-11-27 23:33:41,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2024-11-27 23:33:41,356 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:33:41,356 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1] [2024-11-27 23:33:41,366 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2024-11-27 23:33:41,556 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable41 [2024-11-27 23:33:41,556 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 23:33:41,557 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:33:41,557 INFO L85 PathProgramCache]: Analyzing trace with hash 2042647783, now seen corresponding path program 1 times [2024-11-27 23:33:41,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:33:41,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568875676] [2024-11-27 23:33:41,557 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:33:41,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:33:41,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:33:41,912 INFO L134 CoverageAnalysis]: Checked inductivity of 894 backedges. 0 proven. 282 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-27 23:33:41,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:33:41,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568875676] [2024-11-27 23:33:41,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568875676] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:33:41,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1122839303] [2024-11-27 23:33:41,913 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:33:41,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:33:41,913 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:33:41,915 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:33:41,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-11-27 23:33:42,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:33:42,038 INFO L256 TraceCheckSpWp]: Trace formula consists of 418 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-27 23:33:42,042 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:33:42,532 INFO L134 CoverageAnalysis]: Checked inductivity of 894 backedges. 282 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-27 23:33:42,532 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:33:42,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1122839303] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:33:42,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:33:42,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 14 [2024-11-27 23:33:42,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980161315] [2024-11-27 23:33:42,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:33:42,533 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 23:33:42,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:33:42,534 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 23:33:42,534 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2024-11-27 23:33:42,535 INFO L87 Difference]: Start difference. First operand 591 states and 661 transitions. Second operand has 7 states, 6 states have (on average 33.833333333333336) internal successors, (203), 7 states have internal predecessors, (203), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-27 23:33:43,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:33:43,256 INFO L93 Difference]: Finished difference Result 591 states and 661 transitions. [2024-11-27 23:33:43,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 23:33:43,257 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 33.833333333333336) internal successors, (203), 7 states have internal predecessors, (203), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) Word has length 290 [2024-11-27 23:33:43,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:33:43,259 INFO L225 Difference]: With dead ends: 591 [2024-11-27 23:33:43,259 INFO L226 Difference]: Without dead ends: 587 [2024-11-27 23:33:43,260 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 285 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2024-11-27 23:33:43,260 INFO L435 NwaCegarLoop]: 180 mSDtfsCounter, 306 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 313 SdHoareTripleChecker+Valid, 404 SdHoareTripleChecker+Invalid, 446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-27 23:33:43,260 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [313 Valid, 404 Invalid, 446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 431 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-27 23:33:43,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 587 states. [2024-11-27 23:33:43,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 587 to 587. [2024-11-27 23:33:43,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 587 states, 513 states have (on average 1.0974658869395713) internal successors, (563), 541 states have internal predecessors, (563), 44 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-27 23:33:43,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 587 states and 651 transitions. [2024-11-27 23:33:43,336 INFO L78 Accepts]: Start accepts. Automaton has 587 states and 651 transitions. Word has length 290 [2024-11-27 23:33:43,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:33:43,337 INFO L471 AbstractCegarLoop]: Abstraction has 587 states and 651 transitions. [2024-11-27 23:33:43,337 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 33.833333333333336) internal successors, (203), 7 states have internal predecessors, (203), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-27 23:33:43,337 INFO L276 IsEmpty]: Start isEmpty. Operand 587 states and 651 transitions. [2024-11-27 23:33:43,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2024-11-27 23:33:43,339 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:33:43,339 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1] [2024-11-27 23:33:43,349 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2024-11-27 23:33:43,539 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable42 [2024-11-27 23:33:43,539 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 23:33:43,540 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:33:43,540 INFO L85 PathProgramCache]: Analyzing trace with hash -1102428053, now seen corresponding path program 1 times [2024-11-27 23:33:43,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:33:43,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392430052] [2024-11-27 23:33:43,540 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:33:43,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:33:43,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:33:44,062 INFO L134 CoverageAnalysis]: Checked inductivity of 897 backedges. 0 proven. 285 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-27 23:33:44,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:33:44,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392430052] [2024-11-27 23:33:44,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392430052] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:33:44,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [113365378] [2024-11-27 23:33:44,063 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:33:44,063 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:33:44,063 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:33:44,065 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:33:44,069 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2024-11-27 23:33:44,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:33:44,184 INFO L256 TraceCheckSpWp]: Trace formula consists of 419 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-27 23:33:44,188 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:33:45,972 INFO L134 CoverageAnalysis]: Checked inductivity of 897 backedges. 180 proven. 105 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-27 23:33:45,972 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:33:48,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [113365378] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:33:48,306 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 23:33:48,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12] total 24 [2024-11-27 23:33:48,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476399275] [2024-11-27 23:33:48,306 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 23:33:48,307 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-27 23:33:48,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:33:48,308 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-27 23:33:48,308 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=152, Invalid=718, Unknown=0, NotChecked=0, Total=870 [2024-11-27 23:33:48,309 INFO L87 Difference]: Start difference. First operand 587 states and 651 transitions. Second operand has 25 states, 24 states have (on average 16.75) internal successors, (402), 25 states have internal predecessors, (402), 8 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 8 states have call predecessors, (36), 8 states have call successors, (36) [2024-11-27 23:33:51,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:33:51,655 INFO L93 Difference]: Finished difference Result 587 states and 651 transitions. [2024-11-27 23:33:51,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-27 23:33:51,656 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 16.75) internal successors, (402), 25 states have internal predecessors, (402), 8 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 8 states have call predecessors, (36), 8 states have call successors, (36) Word has length 291 [2024-11-27 23:33:51,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:33:51,657 INFO L225 Difference]: With dead ends: 587 [2024-11-27 23:33:51,657 INFO L226 Difference]: Without dead ends: 550 [2024-11-27 23:33:51,658 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 368 GetRequests, 332 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=313, Invalid=1093, Unknown=0, NotChecked=0, Total=1406 [2024-11-27 23:33:51,658 INFO L435 NwaCegarLoop]: 150 mSDtfsCounter, 819 mSDsluCounter, 1374 mSDsCounter, 0 mSdLazyCounter, 2567 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 819 SdHoareTripleChecker+Valid, 1524 SdHoareTripleChecker+Invalid, 2649 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 2567 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:33:51,658 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [819 Valid, 1524 Invalid, 2649 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 2567 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-27 23:33:51,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2024-11-27 23:33:51,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 431. [2024-11-27 23:33:51,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 431 states, 376 states have (on average 1.071808510638298) internal successors, (403), 397 states have internal predecessors, (403), 32 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-27 23:33:51,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 467 transitions. [2024-11-27 23:33:51,700 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 467 transitions. Word has length 291 [2024-11-27 23:33:51,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:33:51,700 INFO L471 AbstractCegarLoop]: Abstraction has 431 states and 467 transitions. [2024-11-27 23:33:51,700 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 16.75) internal successors, (402), 25 states have internal predecessors, (402), 8 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 8 states have call predecessors, (36), 8 states have call successors, (36) [2024-11-27 23:33:51,700 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 467 transitions. [2024-11-27 23:33:51,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2024-11-27 23:33:51,702 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:33:51,702 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 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, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1] [2024-11-27 23:33:51,712 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2024-11-27 23:33:51,902 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:33:51,903 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr49ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 23:33:51,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:33:51,903 INFO L85 PathProgramCache]: Analyzing trace with hash 1217292052, now seen corresponding path program 1 times [2024-11-27 23:33:51,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:33:51,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111050408] [2024-11-27 23:33:51,903 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:33:51,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:33:51,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:33:52,004 INFO L134 CoverageAnalysis]: Checked inductivity of 1108 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 1015 trivial. 0 not checked. [2024-11-27 23:33:52,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:33:52,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111050408] [2024-11-27 23:33:52,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2111050408] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:33:52,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:33:52,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:33:52,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919829011] [2024-11-27 23:33:52,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:33:52,005 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:33:52,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:33:52,006 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:33:52,006 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:33:52,006 INFO L87 Difference]: Start difference. First operand 431 states and 467 transitions. Second operand has 4 states, 3 states have (on average 30.666666666666668) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-27 23:33:52,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:33:52,228 INFO L93 Difference]: Finished difference Result 431 states and 467 transitions. [2024-11-27 23:33:52,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:33:52,229 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 30.666666666666668) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 320 [2024-11-27 23:33:52,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:33:52,230 INFO L225 Difference]: With dead ends: 431 [2024-11-27 23:33:52,230 INFO L226 Difference]: Without dead ends: 430 [2024-11-27 23:33:52,230 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:33:52,230 INFO L435 NwaCegarLoop]: 72 mSDtfsCounter, 186 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 23:33:52,230 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 148 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 23:33:52,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2024-11-27 23:33:52,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 430. [2024-11-27 23:33:52,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 430 states, 376 states have (on average 1.0664893617021276) internal successors, (401), 396 states have internal predecessors, (401), 32 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-27 23:33:52,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 465 transitions. [2024-11-27 23:33:52,259 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 465 transitions. Word has length 320 [2024-11-27 23:33:52,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:33:52,259 INFO L471 AbstractCegarLoop]: Abstraction has 430 states and 465 transitions. [2024-11-27 23:33:52,259 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 30.666666666666668) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-27 23:33:52,260 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 465 transitions. [2024-11-27 23:33:52,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2024-11-27 23:33:52,261 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:33:52,261 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 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, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:33:52,261 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2024-11-27 23:33:52,261 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr61ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 23:33:52,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:33:52,262 INFO L85 PathProgramCache]: Analyzing trace with hash 1454072856, now seen corresponding path program 3 times [2024-11-27 23:33:52,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:33:52,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399433590] [2024-11-27 23:33:52,262 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 23:33:52,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:33:52,310 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2024-11-27 23:33:52,311 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 23:33:52,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1035778700] [2024-11-27 23:33:52,312 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 23:33:52,313 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:33:52,313 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:33:52,315 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:33:52,320 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-11-27 23:33:52,413 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-27 23:33:52,413 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:33:52,414 INFO L256 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-27 23:33:52,418 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:33:52,992 INFO L134 CoverageAnalysis]: Checked inductivity of 1176 backedges. 0 proven. 336 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-11-27 23:33:52,992 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:33:53,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:33:53,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399433590] [2024-11-27 23:33:53,523 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:33:53,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1035778700] [2024-11-27 23:33:53,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1035778700] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:33:53,523 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:33:53,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-27 23:33:53,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317732236] [2024-11-27 23:33:53,524 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 23:33:53,524 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-27 23:33:53,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:33:53,525 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-27 23:33:53,525 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2024-11-27 23:33:53,525 INFO L87 Difference]: Start difference. First operand 430 states and 465 transitions. Second operand has 9 states, 8 states have (on average 28.375) internal successors, (227), 9 states have internal predecessors, (227), 6 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 6 states have call predecessors, (21), 6 states have call successors, (21) [2024-11-27 23:33:54,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:33:54,335 INFO L93 Difference]: Finished difference Result 491 states and 529 transitions. [2024-11-27 23:33:54,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 23:33:54,335 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 28.375) internal successors, (227), 9 states have internal predecessors, (227), 6 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 6 states have call predecessors, (21), 6 states have call successors, (21) Word has length 329 [2024-11-27 23:33:54,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:33:54,337 INFO L225 Difference]: With dead ends: 491 [2024-11-27 23:33:54,337 INFO L226 Difference]: Without dead ends: 490 [2024-11-27 23:33:54,338 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 382 GetRequests, 371 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2024-11-27 23:33:54,338 INFO L435 NwaCegarLoop]: 192 mSDtfsCounter, 179 mSDsluCounter, 770 mSDsCounter, 0 mSdLazyCounter, 1043 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 962 SdHoareTripleChecker+Invalid, 1051 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1043 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-27 23:33:54,338 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [179 Valid, 962 Invalid, 1051 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1043 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-27 23:33:54,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2024-11-27 23:33:54,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 430. [2024-11-27 23:33:54,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 430 states, 376 states have (on average 1.0638297872340425) internal successors, (400), 396 states have internal predecessors, (400), 32 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-27 23:33:54,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 464 transitions. [2024-11-27 23:33:54,389 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 464 transitions. Word has length 329 [2024-11-27 23:33:54,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:33:54,389 INFO L471 AbstractCegarLoop]: Abstraction has 430 states and 464 transitions. [2024-11-27 23:33:54,390 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 28.375) internal successors, (227), 9 states have internal predecessors, (227), 6 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 6 states have call predecessors, (21), 6 states have call successors, (21) [2024-11-27 23:33:54,390 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 464 transitions. [2024-11-27 23:33:54,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2024-11-27 23:33:54,392 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:33:54,392 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 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, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:33:54,405 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2024-11-27 23:33:54,592 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45,32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:33:54,593 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr63ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 23:33:54,593 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:33:54,594 INFO L85 PathProgramCache]: Analyzing trace with hash 1499649402, now seen corresponding path program 1 times [2024-11-27 23:33:54,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:33:54,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625506289] [2024-11-27 23:33:54,594 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:33:54,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:33:54,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:33:54,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2017528176] [2024-11-27 23:33:54,644 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:33:54,645 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:33:54,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:33:54,646 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:33:54,649 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2024-11-27 23:33:54,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:33:54,798 INFO L256 TraceCheckSpWp]: Trace formula consists of 471 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-27 23:33:54,803 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:33:56,529 INFO L134 CoverageAnalysis]: Checked inductivity of 1176 backedges. 0 proven. 336 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-11-27 23:33:56,529 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:33:57,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:33:57,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625506289] [2024-11-27 23:33:57,206 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:33:57,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2017528176] [2024-11-27 23:33:57,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2017528176] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:33:57,206 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:33:57,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-11-27 23:33:57,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039175074] [2024-11-27 23:33:57,206 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 23:33:57,207 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-27 23:33:57,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:33:57,207 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-27 23:33:57,207 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2024-11-27 23:33:57,208 INFO L87 Difference]: Start difference. First operand 430 states and 464 transitions. Second operand has 13 states, 12 states have (on average 19.083333333333332) internal successors, (229), 13 states have internal predecessors, (229), 4 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21) [2024-11-27 23:33:58,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:33:58,896 INFO L93 Difference]: Finished difference Result 485 states and 528 transitions. [2024-11-27 23:33:58,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-27 23:33:58,896 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 19.083333333333332) internal successors, (229), 13 states have internal predecessors, (229), 4 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21) Word has length 331 [2024-11-27 23:33:58,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:33:58,898 INFO L225 Difference]: With dead ends: 485 [2024-11-27 23:33:58,898 INFO L226 Difference]: Without dead ends: 478 [2024-11-27 23:33:58,899 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 427 GetRequests, 413 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2024-11-27 23:33:58,899 INFO L435 NwaCegarLoop]: 128 mSDtfsCounter, 51 mSDsluCounter, 538 mSDsCounter, 0 mSdLazyCounter, 2854 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 666 SdHoareTripleChecker+Invalid, 2860 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 2854 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-27 23:33:58,899 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 666 Invalid, 2860 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 2854 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-27 23:33:58,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478 states. [2024-11-27 23:33:58,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478 to 476. [2024-11-27 23:33:58,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 476 states, 420 states have (on average 1.0761904761904761) internal successors, (452), 440 states have internal predecessors, (452), 34 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-27 23:33:58,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 476 states to 476 states and 520 transitions. [2024-11-27 23:33:58,944 INFO L78 Accepts]: Start accepts. Automaton has 476 states and 520 transitions. Word has length 331 [2024-11-27 23:33:58,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:33:58,944 INFO L471 AbstractCegarLoop]: Abstraction has 476 states and 520 transitions. [2024-11-27 23:33:58,944 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 19.083333333333332) internal successors, (229), 13 states have internal predecessors, (229), 4 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21) [2024-11-27 23:33:58,944 INFO L276 IsEmpty]: Start isEmpty. Operand 476 states and 520 transitions. [2024-11-27 23:33:58,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 334 [2024-11-27 23:33:58,946 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:33:58,947 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 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, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:33:58,957 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0 [2024-11-27 23:33:59,151 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46,33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:33:59,151 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr65ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 23:33:59,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:33:59,152 INFO L85 PathProgramCache]: Analyzing trace with hash -1945930020, now seen corresponding path program 1 times [2024-11-27 23:33:59,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:33:59,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734003646] [2024-11-27 23:33:59,152 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:33:59,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:33:59,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:33:59,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [435042046] [2024-11-27 23:33:59,265 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:33:59,265 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:33:59,266 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:33:59,271 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:33:59,275 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2024-11-27 23:33:59,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:33:59,417 INFO L256 TraceCheckSpWp]: Trace formula consists of 473 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-27 23:33:59,422 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:34:01,447 INFO L134 CoverageAnalysis]: Checked inductivity of 1176 backedges. 0 proven. 336 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-11-27 23:34:01,448 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:34:01,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:34:01,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734003646] [2024-11-27 23:34:01,692 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:34:01,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [435042046] [2024-11-27 23:34:01,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [435042046] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:34:01,692 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:34:01,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2024-11-27 23:34:01,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721674198] [2024-11-27 23:34:01,692 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 23:34:01,692 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-27 23:34:01,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:34:01,693 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-27 23:34:01,693 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=223, Unknown=0, NotChecked=0, Total=272 [2024-11-27 23:34:01,694 INFO L87 Difference]: Start difference. First operand 476 states and 520 transitions. Second operand has 15 states, 14 states have (on average 16.5) internal successors, (231), 15 states have internal predecessors, (231), 5 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 5 states have call predecessors, (21), 5 states have call successors, (21) [2024-11-27 23:34:03,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:34:03,914 INFO L93 Difference]: Finished difference Result 480 states and 521 transitions. [2024-11-27 23:34:03,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-27 23:34:03,915 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 16.5) internal successors, (231), 15 states have internal predecessors, (231), 5 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 5 states have call predecessors, (21), 5 states have call successors, (21) Word has length 333 [2024-11-27 23:34:03,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:34:03,917 INFO L225 Difference]: With dead ends: 480 [2024-11-27 23:34:03,917 INFO L226 Difference]: Without dead ends: 478 [2024-11-27 23:34:03,918 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 352 GetRequests, 336 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=55, Invalid=251, Unknown=0, NotChecked=0, Total=306 [2024-11-27 23:34:03,918 INFO L435 NwaCegarLoop]: 79 mSDtfsCounter, 104 mSDsluCounter, 385 mSDsCounter, 0 mSdLazyCounter, 3668 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 464 SdHoareTripleChecker+Invalid, 3674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 3668 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:34:03,919 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 464 Invalid, 3674 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 3668 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-27 23:34:03,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478 states. [2024-11-27 23:34:03,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478 to 476. [2024-11-27 23:34:03,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 476 states, 420 states have (on average 1.0714285714285714) internal successors, (450), 440 states have internal predecessors, (450), 34 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-27 23:34:03,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 476 states to 476 states and 518 transitions. [2024-11-27 23:34:03,995 INFO L78 Accepts]: Start accepts. Automaton has 476 states and 518 transitions. Word has length 333 [2024-11-27 23:34:03,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:34:03,995 INFO L471 AbstractCegarLoop]: Abstraction has 476 states and 518 transitions. [2024-11-27 23:34:03,996 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 16.5) internal successors, (231), 15 states have internal predecessors, (231), 5 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 5 states have call predecessors, (21), 5 states have call successors, (21) [2024-11-27 23:34:03,996 INFO L276 IsEmpty]: Start isEmpty. Operand 476 states and 518 transitions. [2024-11-27 23:34:03,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2024-11-27 23:34:03,998 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:34:03,998 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 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, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:34:04,009 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2024-11-27 23:34:04,198 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2024-11-27 23:34:04,199 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr68ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 23:34:04,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:34:04,199 INFO L85 PathProgramCache]: Analyzing trace with hash -2027438007, now seen corresponding path program 1 times [2024-11-27 23:34:04,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:34:04,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916571617] [2024-11-27 23:34:04,199 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:34:04,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:34:04,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:34:05,180 INFO L134 CoverageAnalysis]: Checked inductivity of 1176 backedges. 0 proven. 336 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-11-27 23:34:05,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:34:05,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916571617] [2024-11-27 23:34:05,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916571617] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:34:05,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1953140774] [2024-11-27 23:34:05,180 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:34:05,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:34:05,181 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:34:05,185 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:34:05,193 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2024-11-27 23:34:05,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:34:05,322 INFO L256 TraceCheckSpWp]: Trace formula consists of 476 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-27 23:34:05,328 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:34:06,720 INFO L134 CoverageAnalysis]: Checked inductivity of 1176 backedges. 58 proven. 278 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-11-27 23:34:06,721 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:34:06,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1953140774] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:34:06,968 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 23:34:06,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2024-11-27 23:34:06,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224617283] [2024-11-27 23:34:06,968 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 23:34:06,969 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-27 23:34:06,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:34:06,970 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-27 23:34:06,971 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=277, Unknown=0, NotChecked=0, Total=342 [2024-11-27 23:34:06,971 INFO L87 Difference]: Start difference. First operand 476 states and 518 transitions. Second operand has 17 states, 16 states have (on average 25.0625) internal successors, (401), 17 states have internal predecessors, (401), 7 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 7 states have call predecessors, (36), 7 states have call successors, (36) [2024-11-27 23:34:10,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:34:10,351 INFO L93 Difference]: Finished difference Result 476 states and 518 transitions. [2024-11-27 23:34:10,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-27 23:34:10,352 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 25.0625) internal successors, (401), 17 states have internal predecessors, (401), 7 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 7 states have call predecessors, (36), 7 states have call successors, (36) Word has length 336 [2024-11-27 23:34:10,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:34:10,353 INFO L225 Difference]: With dead ends: 476 [2024-11-27 23:34:10,354 INFO L226 Difference]: Without dead ends: 475 [2024-11-27 23:34:10,354 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 363 GetRequests, 339 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=151, Invalid=499, Unknown=0, NotChecked=0, Total=650 [2024-11-27 23:34:10,354 INFO L435 NwaCegarLoop]: 144 mSDtfsCounter, 479 mSDsluCounter, 798 mSDsCounter, 0 mSdLazyCounter, 1608 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 479 SdHoareTripleChecker+Valid, 942 SdHoareTripleChecker+Invalid, 1640 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1608 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:34:10,354 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [479 Valid, 942 Invalid, 1640 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1608 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-27 23:34:10,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 475 states. [2024-11-27 23:34:10,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 475 to 475. [2024-11-27 23:34:10,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 475 states, 420 states have (on average 1.0666666666666667) internal successors, (448), 439 states have internal predecessors, (448), 34 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-27 23:34:10,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475 states to 475 states and 516 transitions. [2024-11-27 23:34:10,397 INFO L78 Accepts]: Start accepts. Automaton has 475 states and 516 transitions. Word has length 336 [2024-11-27 23:34:10,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:34:10,398 INFO L471 AbstractCegarLoop]: Abstraction has 475 states and 516 transitions. [2024-11-27 23:34:10,398 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 25.0625) internal successors, (401), 17 states have internal predecessors, (401), 7 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 7 states have call predecessors, (36), 7 states have call successors, (36) [2024-11-27 23:34:10,398 INFO L276 IsEmpty]: Start isEmpty. Operand 475 states and 516 transitions. [2024-11-27 23:34:10,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 352 [2024-11-27 23:34:10,399 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:34:10,399 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 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, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:34:10,405 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Forceful destruction successful, exit code 0 [2024-11-27 23:34:10,599 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48,35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:34:10,600 INFO L396 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr78ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 23:34:10,600 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:34:10,600 INFO L85 PathProgramCache]: Analyzing trace with hash 1561113290, now seen corresponding path program 2 times [2024-11-27 23:34:10,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:34:10,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916050535] [2024-11-27 23:34:10,600 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:34:10,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:34:10,646 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 23:34:10,646 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 23:34:10,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2087750874] [2024-11-27 23:34:10,648 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:34:10,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:34:10,648 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:34:10,650 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:34:10,653 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2024-11-27 23:34:10,808 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 23:34:10,808 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:34:10,810 INFO L256 TraceCheckSpWp]: Trace formula consists of 495 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-27 23:34:10,813 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:34:12,447 INFO L134 CoverageAnalysis]: Checked inductivity of 1260 backedges. 0 proven. 336 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-11-27 23:34:12,447 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:34:13,730 INFO L134 CoverageAnalysis]: Checked inductivity of 1260 backedges. 0 proven. 336 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-11-27 23:34:13,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:34:13,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916050535] [2024-11-27 23:34:13,730 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:34:13,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2087750874] [2024-11-27 23:34:13,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2087750874] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:34:13,730 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 23:34:13,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2024-11-27 23:34:13,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379110529] [2024-11-27 23:34:13,731 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 23:34:13,731 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-27 23:34:13,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:34:13,732 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-27 23:34:13,732 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=510, Unknown=0, NotChecked=0, Total=650 [2024-11-27 23:34:13,732 INFO L87 Difference]: Start difference. First operand 475 states and 516 transitions. Second operand has 26 states, 25 states have (on average 19.28) internal successors, (482), 26 states have internal predecessors, (482), 10 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 10 states have call predecessors, (44), 10 states have call successors, (44) [2024-11-27 23:34:18,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:34:18,335 INFO L93 Difference]: Finished difference Result 770 states and 871 transitions. [2024-11-27 23:34:18,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-11-27 23:34:18,336 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 19.28) internal successors, (482), 26 states have internal predecessors, (482), 10 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 10 states have call predecessors, (44), 10 states have call successors, (44) Word has length 351 [2024-11-27 23:34:18,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:34:18,339 INFO L225 Difference]: With dead ends: 770 [2024-11-27 23:34:18,339 INFO L226 Difference]: Without dead ends: 768 [2024-11-27 23:34:18,341 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 725 GetRequests, 676 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 454 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=587, Invalid=1963, Unknown=0, NotChecked=0, Total=2550 [2024-11-27 23:34:18,342 INFO L435 NwaCegarLoop]: 69 mSDtfsCounter, 1225 mSDsluCounter, 659 mSDsCounter, 0 mSdLazyCounter, 4331 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1226 SdHoareTripleChecker+Valid, 728 SdHoareTripleChecker+Invalid, 4441 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 4331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-27 23:34:18,342 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1226 Valid, 728 Invalid, 4441 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 4331 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-27 23:34:18,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 768 states. [2024-11-27 23:34:18,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 768 to 644. [2024-11-27 23:34:18,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 644 states, 575 states have (on average 1.0660869565217392) internal successors, (613), 594 states have internal predecessors, (613), 48 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-27 23:34:18,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 644 states to 644 states and 709 transitions. [2024-11-27 23:34:18,455 INFO L78 Accepts]: Start accepts. Automaton has 644 states and 709 transitions. Word has length 351 [2024-11-27 23:34:18,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:34:18,455 INFO L471 AbstractCegarLoop]: Abstraction has 644 states and 709 transitions. [2024-11-27 23:34:18,455 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 19.28) internal successors, (482), 26 states have internal predecessors, (482), 10 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 10 states have call predecessors, (44), 10 states have call successors, (44) [2024-11-27 23:34:18,456 INFO L276 IsEmpty]: Start isEmpty. Operand 644 states and 709 transitions. [2024-11-27 23:34:18,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 362 [2024-11-27 23:34:18,458 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:34:18,458 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 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, 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, 1, 1, 1, 1, 1] [2024-11-27 23:34:18,464 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Ended with exit code 0 [2024-11-27 23:34:18,659 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2024-11-27 23:34:18,659 INFO L396 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 23:34:18,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:34:18,660 INFO L85 PathProgramCache]: Analyzing trace with hash 521572740, now seen corresponding path program 3 times [2024-11-27 23:34:18,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:34:18,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021787256] [2024-11-27 23:34:18,660 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 23:34:18,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:34:18,736 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-11-27 23:34:18,736 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:34:19,410 INFO L134 CoverageAnalysis]: Checked inductivity of 1472 backedges. 60 proven. 466 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-27 23:34:19,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:34:19,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021787256] [2024-11-27 23:34:19,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021787256] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:34:19,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1669715633] [2024-11-27 23:34:19,411 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 23:34:19,411 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:34:19,411 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:34:19,413 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:34:19,417 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2024-11-27 23:34:19,486 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-27 23:34:19,486 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:34:19,490 INFO L256 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-27 23:34:19,495 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:34:20,601 INFO L134 CoverageAnalysis]: Checked inductivity of 1472 backedges. 66 proven. 124 refuted. 0 times theorem prover too weak. 1282 trivial. 0 not checked. [2024-11-27 23:34:20,601 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:34:20,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1669715633] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:34:20,980 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 23:34:20,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 8] total 23 [2024-11-27 23:34:20,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529676719] [2024-11-27 23:34:20,981 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 23:34:20,981 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-27 23:34:20,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:34:20,982 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-27 23:34:20,982 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=724, Unknown=0, NotChecked=0, Total=812 [2024-11-27 23:34:20,983 INFO L87 Difference]: Start difference. First operand 644 states and 709 transitions. Second operand has 24 states, 23 states have (on average 14.826086956521738) internal successors, (341), 24 states have internal predecessors, (341), 8 states have call successors, (31), 1 states have call predecessors, (31), 2 states have return successors, (31), 8 states have call predecessors, (31), 8 states have call successors, (31) [2024-11-27 23:34:25,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:34:25,515 INFO L93 Difference]: Finished difference Result 722 states and 790 transitions. [2024-11-27 23:34:25,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2024-11-27 23:34:25,516 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 14.826086956521738) internal successors, (341), 24 states have internal predecessors, (341), 8 states have call successors, (31), 1 states have call predecessors, (31), 2 states have return successors, (31), 8 states have call predecessors, (31), 8 states have call successors, (31) Word has length 361 [2024-11-27 23:34:25,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:34:25,519 INFO L225 Difference]: With dead ends: 722 [2024-11-27 23:34:25,519 INFO L226 Difference]: Without dead ends: 720 [2024-11-27 23:34:25,520 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 456 GetRequests, 399 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 681 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=698, Invalid=2724, Unknown=0, NotChecked=0, Total=3422 [2024-11-27 23:34:25,520 INFO L435 NwaCegarLoop]: 14 mSDtfsCounter, 2309 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 2407 mSolverCounterSat, 201 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2309 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 2608 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 201 IncrementalHoareTripleChecker+Valid, 2407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-27 23:34:25,521 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2309 Valid, 275 Invalid, 2608 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [201 Valid, 2407 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-27 23:34:25,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 720 states. [2024-11-27 23:34:25,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 720 to 642. [2024-11-27 23:34:25,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 642 states, 575 states have (on average 1.0556521739130436) internal successors, (607), 592 states have internal predecessors, (607), 48 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-27 23:34:25,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 642 states to 642 states and 703 transitions. [2024-11-27 23:34:25,644 INFO L78 Accepts]: Start accepts. Automaton has 642 states and 703 transitions. Word has length 361 [2024-11-27 23:34:25,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:34:25,645 INFO L471 AbstractCegarLoop]: Abstraction has 642 states and 703 transitions. [2024-11-27 23:34:25,645 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 14.826086956521738) internal successors, (341), 24 states have internal predecessors, (341), 8 states have call successors, (31), 1 states have call predecessors, (31), 2 states have return successors, (31), 8 states have call predecessors, (31), 8 states have call successors, (31) [2024-11-27 23:34:25,645 INFO L276 IsEmpty]: Start isEmpty. Operand 642 states and 703 transitions. [2024-11-27 23:34:25,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2024-11-27 23:34:25,647 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:34:25,648 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 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, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:34:25,659 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Forceful destruction successful, exit code 0 [2024-11-27 23:34:25,848 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable50 [2024-11-27 23:34:25,848 INFO L396 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr95ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 23:34:25,849 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:34:25,849 INFO L85 PathProgramCache]: Analyzing trace with hash 1595645950, now seen corresponding path program 1 times [2024-11-27 23:34:25,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:34:25,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747579624] [2024-11-27 23:34:25,849 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:34:25,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:34:25,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:34:25,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1811957861] [2024-11-27 23:34:25,899 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:34:25,899 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:34:25,899 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:34:25,901 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:34:25,909 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2024-11-27 23:34:26,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:34:26,081 INFO L256 TraceCheckSpWp]: Trace formula consists of 521 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-27 23:34:26,086 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:34:27,954 INFO L134 CoverageAnalysis]: Checked inductivity of 1348 backedges. 0 proven. 336 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-27 23:34:27,954 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:34:29,903 INFO L134 CoverageAnalysis]: Checked inductivity of 1348 backedges. 0 proven. 336 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-27 23:34:29,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:34:29,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747579624] [2024-11-27 23:34:29,904 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:34:29,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1811957861] [2024-11-27 23:34:29,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1811957861] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:34:29,904 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 23:34:29,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 21 [2024-11-27 23:34:29,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753006317] [2024-11-27 23:34:29,904 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 23:34:29,905 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-27 23:34:29,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:34:29,906 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-27 23:34:29,906 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=141, Invalid=321, Unknown=0, NotChecked=0, Total=462 [2024-11-27 23:34:29,907 INFO L87 Difference]: Start difference. First operand 642 states and 703 transitions. Second operand has 22 states, 21 states have (on average 24.571428571428573) internal successors, (516), 22 states have internal predecessors, (516), 8 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 8 states have call predecessors, (46), 8 states have call successors, (46) [2024-11-27 23:34:37,680 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 [] [2024-11-27 23:34:42,044 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 23:34:52,422 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 23:34:56,494 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 23:34:58,479 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 23:35:07,983 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 23:35:12,973 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.20s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 23:35:16,988 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 23:35:19,875 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.82s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 23:35:23,879 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 23:35:27,226 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.21s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 23:35:31,312 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 23:35:42,530 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 7.71s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 23:35:50,380 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 6.62s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 23:35:56,378 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 23:36:01,153 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 23:36:07,401 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 23:36:12,216 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 23:36:16,621 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 23:36:18,045 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 23:36:22,219 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 23:36:25,345 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 23:36:29,450 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 23:36:35,216 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 23:36:43,462 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.62s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 23:36:49,339 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 23:36:55,623 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.30s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 23:36:59,090 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.12s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 23:37:03,136 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 23:37:04,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:37:04,087 INFO L93 Difference]: Finished difference Result 788 states and 885 transitions. [2024-11-27 23:37:04,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-27 23:37:04,088 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 24.571428571428573) internal successors, (516), 22 states have internal predecessors, (516), 8 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 8 states have call predecessors, (46), 8 states have call successors, (46) Word has length 373 [2024-11-27 23:37:04,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:37:04,090 INFO L225 Difference]: With dead ends: 788 [2024-11-27 23:37:04,090 INFO L226 Difference]: Without dead ends: 724 [2024-11-27 23:37:04,090 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 753 GetRequests, 724 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 15.4s TimeCoverageRelationStatistics Valid=296, Invalid=632, Unknown=2, NotChecked=0, Total=930 [2024-11-27 23:37:04,090 INFO L435 NwaCegarLoop]: 148 mSDtfsCounter, 292 mSDsluCounter, 1405 mSDsCounter, 0 mSdLazyCounter, 3150 mSolverCounterSat, 24 mSolverCounterUnsat, 17 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 139.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 292 SdHoareTripleChecker+Valid, 1553 SdHoareTripleChecker+Invalid, 3191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 3150 IncrementalHoareTripleChecker+Invalid, 17 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 139.5s IncrementalHoareTripleChecker+Time [2024-11-27 23:37:04,091 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [292 Valid, 1553 Invalid, 3191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 3150 Invalid, 17 Unknown, 0 Unchecked, 139.5s Time] [2024-11-27 23:37:04,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 724 states. [2024-11-27 23:37:04,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 724 to 602. [2024-11-27 23:37:04,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 602 states, 537 states have (on average 1.0558659217877095) internal successors, (567), 554 states have internal predecessors, (567), 46 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-27 23:37:04,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 659 transitions. [2024-11-27 23:37:04,189 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 659 transitions. Word has length 373 [2024-11-27 23:37:04,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:37:04,190 INFO L471 AbstractCegarLoop]: Abstraction has 602 states and 659 transitions. [2024-11-27 23:37:04,190 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 24.571428571428573) internal successors, (516), 22 states have internal predecessors, (516), 8 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 8 states have call predecessors, (46), 8 states have call successors, (46) [2024-11-27 23:37:04,190 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 659 transitions. [2024-11-27 23:37:04,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 412 [2024-11-27 23:37:04,192 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:37:04,193 INFO L218 NwaCegarLoop]: trace histogram [26, 26, 26, 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, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:37:04,202 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Forceful destruction successful, exit code 0 [2024-11-27 23:37:04,397 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable51 [2024-11-27 23:37:04,397 INFO L396 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr63ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 23:37:04,397 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:37:04,398 INFO L85 PathProgramCache]: Analyzing trace with hash -1276217699, now seen corresponding path program 2 times [2024-11-27 23:37:04,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:37:04,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005643] [2024-11-27 23:37:04,398 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:37:04,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:37:04,458 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 23:37:04,458 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 23:37:04,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [824581210] [2024-11-27 23:37:04,459 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:37:04,459 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:37:04,460 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:37:04,463 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:37:04,465 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2024-11-27 23:37:04,638 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 23:37:04,638 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:37:04,640 INFO L256 TraceCheckSpWp]: Trace formula consists of 579 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-27 23:37:04,644 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:37:06,315 INFO L134 CoverageAnalysis]: Checked inductivity of 1868 backedges. 0 proven. 568 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-11-27 23:37:06,315 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:37:07,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:37:07,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005643] [2024-11-27 23:37:07,073 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:37:07,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [824581210] [2024-11-27 23:37:07,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [824581210] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:37:07,073 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:37:07,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-11-27 23:37:07,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143802619] [2024-11-27 23:37:07,074 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 23:37:07,074 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-27 23:37:07,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:37:07,075 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-27 23:37:07,075 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-11-27 23:37:07,075 INFO L87 Difference]: Start difference. First operand 602 states and 659 transitions. Second operand has 14 states, 13 states have (on average 21.846153846153847) internal successors, (284), 14 states have internal predecessors, (284), 5 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 5 states have call predecessors, (26), 5 states have call successors, (26) [2024-11-27 23:37:08,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:37:08,189 INFO L93 Difference]: Finished difference Result 669 states and 735 transitions. [2024-11-27 23:37:08,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-27 23:37:08,189 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 21.846153846153847) internal successors, (284), 14 states have internal predecessors, (284), 5 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 5 states have call predecessors, (26), 5 states have call successors, (26) Word has length 411 [2024-11-27 23:37:08,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:37:08,191 INFO L225 Difference]: With dead ends: 669 [2024-11-27 23:37:08,191 INFO L226 Difference]: Without dead ends: 662 [2024-11-27 23:37:08,192 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 508 GetRequests, 492 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2024-11-27 23:37:08,192 INFO L435 NwaCegarLoop]: 200 mSDtfsCounter, 101 mSDsluCounter, 949 mSDsCounter, 0 mSdLazyCounter, 1833 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 1149 SdHoareTripleChecker+Invalid, 1845 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1833 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:37:08,192 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 1149 Invalid, 1845 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1833 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-27 23:37:08,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 662 states. [2024-11-27 23:37:08,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 662 to 660. [2024-11-27 23:37:08,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 660 states, 592 states have (on average 1.0625) internal successors, (629), 609 states have internal predecessors, (629), 49 states have call successors, (49), 1 states have call predecessors, (49), 1 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2024-11-27 23:37:08,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 660 states to 660 states and 727 transitions. [2024-11-27 23:37:08,260 INFO L78 Accepts]: Start accepts. Automaton has 660 states and 727 transitions. Word has length 411 [2024-11-27 23:37:08,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:37:08,261 INFO L471 AbstractCegarLoop]: Abstraction has 660 states and 727 transitions. [2024-11-27 23:37:08,261 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 21.846153846153847) internal successors, (284), 14 states have internal predecessors, (284), 5 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 5 states have call predecessors, (26), 5 states have call successors, (26) [2024-11-27 23:37:08,261 INFO L276 IsEmpty]: Start isEmpty. Operand 660 states and 727 transitions. [2024-11-27 23:37:08,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 413 [2024-11-27 23:37:08,262 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:37:08,262 INFO L218 NwaCegarLoop]: trace histogram [26, 26, 26, 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, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:37:08,266 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Ended with exit code 0 [2024-11-27 23:37:08,462 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:37:08,463 INFO L396 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr64ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 23:37:08,463 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:37:08,463 INFO L85 PathProgramCache]: Analyzing trace with hash -908042814, now seen corresponding path program 3 times [2024-11-27 23:37:08,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:37:08,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916312343] [2024-11-27 23:37:08,463 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 23:37:08,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:37:08,523 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2024-11-27 23:37:08,523 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 23:37:08,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [509820546] [2024-11-27 23:37:08,525 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 23:37:08,525 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:37:08,525 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:37:08,529 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:37:08,531 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2024-11-27 23:37:08,781 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-27 23:37:08,781 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:37:08,782 INFO L256 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-27 23:37:08,787 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:37:09,955 INFO L134 CoverageAnalysis]: Checked inductivity of 1868 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 1793 trivial. 0 not checked. [2024-11-27 23:37:09,955 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:37:09,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:37:09,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916312343] [2024-11-27 23:37:09,956 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:37:09,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [509820546] [2024-11-27 23:37:09,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [509820546] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:37:09,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:37:09,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-27 23:37:09,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929852280] [2024-11-27 23:37:09,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:37:09,957 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-27 23:37:09,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:37:09,957 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-27 23:37:09,957 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-27 23:37:09,957 INFO L87 Difference]: Start difference. First operand 660 states and 727 transitions. Second operand has 10 states, 9 states have (on average 8.555555555555555) internal successors, (77), 10 states have internal predecessors, (77), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-27 23:37:11,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:37:11,283 INFO L93 Difference]: Finished difference Result 660 states and 727 transitions. [2024-11-27 23:37:11,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-27 23:37:11,284 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.555555555555555) internal successors, (77), 10 states have internal predecessors, (77), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 412 [2024-11-27 23:37:11,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:37:11,304 INFO L225 Difference]: With dead ends: 660 [2024-11-27 23:37:11,304 INFO L226 Difference]: Without dead ends: 659 [2024-11-27 23:37:11,304 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 414 GetRequests, 403 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2024-11-27 23:37:11,305 INFO L435 NwaCegarLoop]: 77 mSDtfsCounter, 157 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 470 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 407 SdHoareTripleChecker+Invalid, 476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 470 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:37:11,305 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 407 Invalid, 476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 470 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-27 23:37:11,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 659 states. [2024-11-27 23:37:11,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 659 to 659. [2024-11-27 23:37:11,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 659 states, 592 states have (on average 1.0574324324324325) internal successors, (626), 608 states have internal predecessors, (626), 49 states have call successors, (49), 1 states have call predecessors, (49), 1 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2024-11-27 23:37:11,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 659 states to 659 states and 724 transitions. [2024-11-27 23:37:11,415 INFO L78 Accepts]: Start accepts. Automaton has 659 states and 724 transitions. Word has length 412 [2024-11-27 23:37:11,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:37:11,416 INFO L471 AbstractCegarLoop]: Abstraction has 659 states and 724 transitions. [2024-11-27 23:37:11,416 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.555555555555555) internal successors, (77), 10 states have internal predecessors, (77), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-27 23:37:11,416 INFO L276 IsEmpty]: Start isEmpty. Operand 659 states and 724 transitions. [2024-11-27 23:37:11,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 414 [2024-11-27 23:37:11,418 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:37:11,418 INFO L218 NwaCegarLoop]: trace histogram [26, 26, 26, 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, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:37:11,427 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Forceful destruction successful, exit code 0 [2024-11-27 23:37:11,622 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53,40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:37:11,622 INFO L396 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr65ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 23:37:11,622 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:37:11,623 INFO L85 PathProgramCache]: Analyzing trace with hash 1915444031, now seen corresponding path program 2 times [2024-11-27 23:37:11,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:37:11,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885142860] [2024-11-27 23:37:11,623 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:37:11,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:37:11,666 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 23:37:11,666 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 23:37:11,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [101603307] [2024-11-27 23:37:11,668 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:37:11,668 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:37:11,668 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:37:11,671 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:37:11,672 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2024-11-27 23:37:11,848 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 23:37:11,848 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:37:11,851 INFO L256 TraceCheckSpWp]: Trace formula consists of 581 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-11-27 23:37:11,855 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:37:17,527 INFO L134 CoverageAnalysis]: Checked inductivity of 1868 backedges. 0 proven. 568 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-11-27 23:37:17,527 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:37:22,351 INFO L134 CoverageAnalysis]: Checked inductivity of 1868 backedges. 0 proven. 568 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-11-27 23:37:22,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:37:22,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885142860] [2024-11-27 23:37:22,352 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:37:22,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [101603307] [2024-11-27 23:37:22,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [101603307] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:37:22,352 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 23:37:22,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 35 [2024-11-27 23:37:22,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489300823] [2024-11-27 23:37:22,353 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 23:37:22,353 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-11-27 23:37:22,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:37:22,355 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-11-27 23:37:22,355 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=337, Invalid=923, Unknown=0, NotChecked=0, Total=1260 [2024-11-27 23:37:22,355 INFO L87 Difference]: Start difference. First operand 659 states and 724 transitions. Second operand has 36 states, 35 states have (on average 16.228571428571428) internal successors, (568), 36 states have internal predecessors, (568), 10 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 10 states have call predecessors, (52), 10 states have call successors, (52) [2024-11-27 23:37:28,113 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 23:37:36,984 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 23:37:41,885 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 23:37:45,436 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 23:38:12,431 WARN L286 SmtUtils]: Spent 26.38s on a formula simplification that was a NOOP. DAG size: 120 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-27 23:38:31,032 WARN L286 SmtUtils]: Spent 11.05s on a formula simplification that was a NOOP. DAG size: 117 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-27 23:38:31,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:38:31,418 INFO L93 Difference]: Finished difference Result 740 states and 812 transitions. [2024-11-27 23:38:31,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2024-11-27 23:38:31,419 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 35 states have (on average 16.228571428571428) internal successors, (568), 36 states have internal predecessors, (568), 10 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 10 states have call predecessors, (52), 10 states have call successors, (52) Word has length 413 [2024-11-27 23:38:31,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:38:31,421 INFO L225 Difference]: With dead ends: 740 [2024-11-27 23:38:31,421 INFO L226 Difference]: Without dead ends: 738 [2024-11-27 23:38:31,423 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 846 GetRequests, 790 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 800 ImplicationChecksByTransitivity, 46.1s TimeCoverageRelationStatistics Valid=902, Invalid=2403, Unknown=1, NotChecked=0, Total=3306 [2024-11-27 23:38:31,423 INFO L435 NwaCegarLoop]: 63 mSDtfsCounter, 2280 mSDsluCounter, 586 mSDsCounter, 0 mSdLazyCounter, 5203 mSolverCounterSat, 211 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2285 SdHoareTripleChecker+Valid, 649 SdHoareTripleChecker+Invalid, 5416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 211 IncrementalHoareTripleChecker+Valid, 5203 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.2s IncrementalHoareTripleChecker+Time [2024-11-27 23:38:31,423 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2285 Valid, 649 Invalid, 5416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [211 Valid, 5203 Invalid, 2 Unknown, 0 Unchecked, 24.2s Time] [2024-11-27 23:38:31,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 738 states. [2024-11-27 23:38:31,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 738 to 732. [2024-11-27 23:38:31,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 732 states, 659 states have (on average 1.0515933232169954) internal successors, (693), 675 states have internal predecessors, (693), 55 states have call successors, (55), 1 states have call predecessors, (55), 1 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2024-11-27 23:38:31,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 732 states to 732 states and 803 transitions. [2024-11-27 23:38:31,513 INFO L78 Accepts]: Start accepts. Automaton has 732 states and 803 transitions. Word has length 413 [2024-11-27 23:38:31,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:38:31,514 INFO L471 AbstractCegarLoop]: Abstraction has 732 states and 803 transitions. [2024-11-27 23:38:31,514 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 35 states have (on average 16.228571428571428) internal successors, (568), 36 states have internal predecessors, (568), 10 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 10 states have call predecessors, (52), 10 states have call successors, (52) [2024-11-27 23:38:31,515 INFO L276 IsEmpty]: Start isEmpty. Operand 732 states and 803 transitions. [2024-11-27 23:38:31,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 447 [2024-11-27 23:38:31,517 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:38:31,517 INFO L218 NwaCegarLoop]: trace histogram [28, 28, 28, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1] [2024-11-27 23:38:31,529 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Forceful destruction successful, exit code 0 [2024-11-27 23:38:31,722 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable54 [2024-11-27 23:38:31,723 INFO L396 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 23:38:31,723 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:38:31,723 INFO L85 PathProgramCache]: Analyzing trace with hash -591391267, now seen corresponding path program 2 times [2024-11-27 23:38:31,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:38:31,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142552839] [2024-11-27 23:38:31,724 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:38:31,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:38:31,782 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 23:38:31,782 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 23:38:31,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [840363173] [2024-11-27 23:38:31,784 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:38:31,785 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:38:31,785 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:38:31,787 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:38:31,790 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2024-11-27 23:38:31,948 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 23:38:31,948 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:38:31,951 INFO L256 TraceCheckSpWp]: Trace formula consists of 630 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-11-27 23:38:31,957 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:38:34,695 INFO L134 CoverageAnalysis]: Checked inductivity of 2262 backedges. 0 proven. 750 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2024-11-27 23:38:34,695 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:38:44,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:38:44,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142552839] [2024-11-27 23:38:44,672 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:38:44,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [840363173] [2024-11-27 23:38:44,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [840363173] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:38:44,672 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:38:44,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2024-11-27 23:38:44,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585183621] [2024-11-27 23:38:44,672 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 23:38:44,673 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-27 23:38:44,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:38:44,673 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-27 23:38:44,673 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=142, Invalid=558, Unknown=2, NotChecked=0, Total=702 [2024-11-27 23:38:44,674 INFO L87 Difference]: Start difference. First operand 732 states and 803 transitions. Second operand has 23 states, 22 states have (on average 14.045454545454545) internal successors, (309), 23 states have internal predecessors, (309), 6 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 6 states have call predecessors, (28), 6 states have call successors, (28) [2024-11-27 23:38:49,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:38:49,363 INFO L93 Difference]: Finished difference Result 794 states and 878 transitions. [2024-11-27 23:38:49,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-27 23:38:49,364 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 14.045454545454545) internal successors, (309), 23 states have internal predecessors, (309), 6 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 6 states have call predecessors, (28), 6 states have call successors, (28) Word has length 446 [2024-11-27 23:38:49,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:38:49,366 INFO L225 Difference]: With dead ends: 794 [2024-11-27 23:38:49,366 INFO L226 Difference]: Without dead ends: 792 [2024-11-27 23:38:49,366 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 497 GetRequests, 472 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 10.1s TimeCoverageRelationStatistics Valid=142, Invalid=558, Unknown=2, NotChecked=0, Total=702 [2024-11-27 23:38:49,366 INFO L435 NwaCegarLoop]: 117 mSDtfsCounter, 192 mSDsluCounter, 899 mSDsCounter, 0 mSdLazyCounter, 8085 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 1016 SdHoareTripleChecker+Invalid, 8089 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 8085 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-11-27 23:38:49,367 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [200 Valid, 1016 Invalid, 8089 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 8085 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2024-11-27 23:38:49,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 792 states. [2024-11-27 23:38:49,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 792 to 732. [2024-11-27 23:38:49,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 732 states, 659 states have (on average 1.0485584218512898) internal successors, (691), 675 states have internal predecessors, (691), 55 states have call successors, (55), 1 states have call predecessors, (55), 1 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2024-11-27 23:38:49,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 732 states to 732 states and 801 transitions. [2024-11-27 23:38:49,508 INFO L78 Accepts]: Start accepts. Automaton has 732 states and 801 transitions. Word has length 446 [2024-11-27 23:38:49,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:38:49,508 INFO L471 AbstractCegarLoop]: Abstraction has 732 states and 801 transitions. [2024-11-27 23:38:49,508 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 14.045454545454545) internal successors, (309), 23 states have internal predecessors, (309), 6 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 6 states have call predecessors, (28), 6 states have call successors, (28) [2024-11-27 23:38:49,509 INFO L276 IsEmpty]: Start isEmpty. Operand 732 states and 801 transitions. [2024-11-27 23:38:49,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 458 [2024-11-27 23:38:49,511 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:38:49,512 INFO L218 NwaCegarLoop]: trace histogram [28, 28, 28, 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, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:38:49,522 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Ended with exit code 0 [2024-11-27 23:38:49,715 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable55 [2024-11-27 23:38:49,715 INFO L396 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr99ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 23:38:49,716 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:38:49,716 INFO L85 PathProgramCache]: Analyzing trace with hash -1447736027, now seen corresponding path program 1 times [2024-11-27 23:38:49,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:38:49,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47452] [2024-11-27 23:38:49,716 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:38:49,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:38:49,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:38:50,387 INFO L134 CoverageAnalysis]: Checked inductivity of 2080 backedges. 0 proven. 568 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2024-11-27 23:38:50,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:38:50,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47452] [2024-11-27 23:38:50,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [47452] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:38:50,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1086142220] [2024-11-27 23:38:50,388 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:38:50,388 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:38:50,388 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:38:50,392 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:38:50,393 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2024-11-27 23:38:50,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:38:50,547 INFO L256 TraceCheckSpWp]: Trace formula consists of 633 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-27 23:38:50,552 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:38:52,094 INFO L134 CoverageAnalysis]: Checked inductivity of 2080 backedges. 176 proven. 392 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2024-11-27 23:38:52,094 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:38:52,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1086142220] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:38:52,322 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 23:38:52,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 22 [2024-11-27 23:38:52,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383358824] [2024-11-27 23:38:52,322 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 23:38:52,323 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-27 23:38:52,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:38:52,323 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-27 23:38:52,324 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=494, Unknown=0, NotChecked=0, Total=600 [2024-11-27 23:38:52,324 INFO L87 Difference]: Start difference. First operand 732 states and 801 transitions. Second operand has 23 states, 22 states have (on average 24.636363636363637) internal successors, (542), 23 states have internal predecessors, (542), 9 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 9 states have call predecessors, (48), 9 states have call successors, (48) [2024-11-27 23:38:55,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:38:55,509 INFO L93 Difference]: Finished difference Result 732 states and 801 transitions. [2024-11-27 23:38:55,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-27 23:38:55,510 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 24.636363636363637) internal successors, (542), 23 states have internal predecessors, (542), 9 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 9 states have call predecessors, (48), 9 states have call successors, (48) Word has length 457 [2024-11-27 23:38:55,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:38:55,512 INFO L225 Difference]: With dead ends: 732 [2024-11-27 23:38:55,513 INFO L226 Difference]: Without dead ends: 668 [2024-11-27 23:38:55,513 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 492 GetRequests, 460 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=261, Invalid=861, Unknown=0, NotChecked=0, Total=1122 [2024-11-27 23:38:55,513 INFO L435 NwaCegarLoop]: 177 mSDtfsCounter, 656 mSDsluCounter, 1233 mSDsCounter, 0 mSdLazyCounter, 2212 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 656 SdHoareTripleChecker+Valid, 1410 SdHoareTripleChecker+Invalid, 2263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 2212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-27 23:38:55,514 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [656 Valid, 1410 Invalid, 2263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 2212 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-27 23:38:55,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 668 states. [2024-11-27 23:38:55,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 668 to 650. [2024-11-27 23:38:55,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 650 states, 586 states have (on average 1.0341296928327646) internal successors, (606), 597 states have internal predecessors, (606), 51 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2024-11-27 23:38:55,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 708 transitions. [2024-11-27 23:38:55,641 INFO L78 Accepts]: Start accepts. Automaton has 650 states and 708 transitions. Word has length 457 [2024-11-27 23:38:55,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:38:55,642 INFO L471 AbstractCegarLoop]: Abstraction has 650 states and 708 transitions. [2024-11-27 23:38:55,642 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 24.636363636363637) internal successors, (542), 23 states have internal predecessors, (542), 9 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 9 states have call predecessors, (48), 9 states have call successors, (48) [2024-11-27 23:38:55,643 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states and 708 transitions. [2024-11-27 23:38:55,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 492 [2024-11-27 23:38:55,646 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:38:55,646 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:38:55,659 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Ended with exit code 0 [2024-11-27 23:38:55,850 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable56 [2024-11-27 23:38:55,850 INFO L396 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr63ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 23:38:55,851 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:38:55,851 INFO L85 PathProgramCache]: Analyzing trace with hash -1071195712, now seen corresponding path program 3 times [2024-11-27 23:38:55,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:38:55,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717214372] [2024-11-27 23:38:55,851 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 23:38:55,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:38:55,948 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2024-11-27 23:38:55,948 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 23:38:55,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [993638749] [2024-11-27 23:38:55,953 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 23:38:55,953 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:38:55,953 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:38:55,955 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:38:55,959 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2024-11-27 23:38:56,121 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-27 23:38:56,121 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:38:56,127 INFO L256 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-27 23:38:56,133 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:39:00,300 INFO L134 CoverageAnalysis]: Checked inductivity of 2720 backedges. 553 proven. 47 refuted. 0 times theorem prover too weak. 2120 trivial. 0 not checked. [2024-11-27 23:39:00,300 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:39:08,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:39:08,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717214372] [2024-11-27 23:39:08,920 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:39:08,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [993638749] [2024-11-27 23:39:08,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [993638749] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:39:08,921 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:39:08,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2024-11-27 23:39:08,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305468666] [2024-11-27 23:39:08,921 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 23:39:08,921 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-27 23:39:08,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:39:08,922 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-27 23:39:08,922 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=141, Invalid=561, Unknown=0, NotChecked=0, Total=702 [2024-11-27 23:39:08,922 INFO L87 Difference]: Start difference. First operand 650 states and 708 transitions. Second operand has 16 states, 15 states have (on average 9.533333333333333) internal successors, (143), 16 states have internal predecessors, (143), 7 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (13), 5 states have call predecessors, (13), 7 states have call successors, (13) [2024-11-27 23:39:21,519 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 23:39:28,295 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 23:39:41,922 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 23:39:44,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:39:44,234 INFO L93 Difference]: Finished difference Result 652 states and 710 transitions. [2024-11-27 23:39:44,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-27 23:39:44,234 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 9.533333333333333) internal successors, (143), 16 states have internal predecessors, (143), 7 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (13), 5 states have call predecessors, (13), 7 states have call successors, (13) Word has length 491 [2024-11-27 23:39:44,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:39:44,237 INFO L225 Difference]: With dead ends: 652 [2024-11-27 23:39:44,237 INFO L226 Difference]: Without dead ends: 624 [2024-11-27 23:39:44,238 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 593 GetRequests, 562 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 217 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=234, Invalid=822, Unknown=0, NotChecked=0, Total=1056 [2024-11-27 23:39:44,238 INFO L435 NwaCegarLoop]: 12 mSDtfsCounter, 496 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 1050 mSolverCounterSat, 56 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 497 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 1110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 1050 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.7s IncrementalHoareTripleChecker+Time [2024-11-27 23:39:44,238 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [497 Valid, 89 Invalid, 1110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 1050 Invalid, 4 Unknown, 0 Unchecked, 33.7s Time] [2024-11-27 23:39:44,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 624 states. [2024-11-27 23:39:44,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 624 to 595. [2024-11-27 23:39:44,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 595 states, 542 states have (on average 1.014760147601476) internal successors, (550), 544 states have internal predecessors, (550), 49 states have call successors, (49), 1 states have call predecessors, (49), 1 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2024-11-27 23:39:44,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 595 states to 595 states and 648 transitions. [2024-11-27 23:39:44,342 INFO L78 Accepts]: Start accepts. Automaton has 595 states and 648 transitions. Word has length 491 [2024-11-27 23:39:44,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:39:44,342 INFO L471 AbstractCegarLoop]: Abstraction has 595 states and 648 transitions. [2024-11-27 23:39:44,342 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 9.533333333333333) internal successors, (143), 16 states have internal predecessors, (143), 7 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (13), 5 states have call predecessors, (13), 7 states have call successors, (13) [2024-11-27 23:39:44,342 INFO L276 IsEmpty]: Start isEmpty. Operand 595 states and 648 transitions. [2024-11-27 23:39:44,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 527 [2024-11-27 23:39:44,344 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:39:44,344 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 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, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1] [2024-11-27 23:39:44,351 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Forceful destruction successful, exit code 0 [2024-11-27 23:39:44,545 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable57 [2024-11-27 23:39:44,545 INFO L396 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 23:39:44,545 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:39:44,545 INFO L85 PathProgramCache]: Analyzing trace with hash -50755622, now seen corresponding path program 3 times [2024-11-27 23:39:44,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:39:44,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271541367] [2024-11-27 23:39:44,546 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 23:39:44,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:39:44,708 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2024-11-27 23:39:44,709 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 23:39:44,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1148925232] [2024-11-27 23:39:44,712 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 23:39:44,712 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:39:44,712 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:39:44,715 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:39:44,718 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2024-11-27 23:39:44,861 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-27 23:39:44,861 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:39:44,863 INFO L256 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-27 23:39:44,868 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:39:45,923 INFO L134 CoverageAnalysis]: Checked inductivity of 3192 backedges. 420 proven. 0 refuted. 0 times theorem prover too weak. 2772 trivial. 0 not checked. [2024-11-27 23:39:45,924 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:39:45,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:39:45,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271541367] [2024-11-27 23:39:45,924 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:39:45,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1148925232] [2024-11-27 23:39:45,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1148925232] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:39:45,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:39:45,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-27 23:39:45,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768316635] [2024-11-27 23:39:45,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:39:45,925 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 23:39:45,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:39:45,925 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 23:39:45,925 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-27 23:39:45,925 INFO L87 Difference]: Start difference. First operand 595 states and 648 transitions. Second operand has 8 states, 7 states have (on average 12.571428571428571) internal successors, (88), 8 states have internal predecessors, (88), 3 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-27 23:39:49,798 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.49s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 23:39:51,339 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 23:39:55,361 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 23:39:59,364 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 23:40:02,232 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.81s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 23:40:06,234 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 23:40:09,486 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 23:40:11,173 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 23:40:13,935 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.72s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 23:40:15,040 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 23:40:16,285 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 23:40:16,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:40:16,903 INFO L93 Difference]: Finished difference Result 597 states and 650 transitions. [2024-11-27 23:40:16,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-27 23:40:16,904 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 12.571428571428571) internal successors, (88), 8 states have internal predecessors, (88), 3 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) Word has length 526 [2024-11-27 23:40:16,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:40:16,906 INFO L225 Difference]: With dead ends: 597 [2024-11-27 23:40:16,906 INFO L226 Difference]: Without dead ends: 596 [2024-11-27 23:40:16,906 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 529 GetRequests, 520 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2024-11-27 23:40:16,907 INFO L435 NwaCegarLoop]: 21 mSDtfsCounter, 243 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 31 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.2s IncrementalHoareTripleChecker+Time [2024-11-27 23:40:16,907 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [244 Valid, 83 Invalid, 399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 365 Invalid, 3 Unknown, 0 Unchecked, 30.2s Time] [2024-11-27 23:40:16,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 596 states. [2024-11-27 23:40:17,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 596 to 594. [2024-11-27 23:40:17,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 594 states, 542 states have (on average 1.0092250922509225) internal successors, (547), 543 states have internal predecessors, (547), 49 states have call successors, (49), 1 states have call predecessors, (49), 1 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2024-11-27 23:40:17,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 594 states to 594 states and 645 transitions. [2024-11-27 23:40:17,065 INFO L78 Accepts]: Start accepts. Automaton has 594 states and 645 transitions. Word has length 526 [2024-11-27 23:40:17,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:40:17,066 INFO L471 AbstractCegarLoop]: Abstraction has 594 states and 645 transitions. [2024-11-27 23:40:17,066 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 12.571428571428571) internal successors, (88), 8 states have internal predecessors, (88), 3 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-27 23:40:17,066 INFO L276 IsEmpty]: Start isEmpty. Operand 594 states and 645 transitions. [2024-11-27 23:40:17,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 528 [2024-11-27 23:40:17,069 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:40:17,069 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:40:17,079 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Ended with exit code 0 [2024-11-27 23:40:17,270 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable58 [2024-11-27 23:40:17,270 INFO L396 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr89ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 23:40:17,270 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:40:17,270 INFO L85 PathProgramCache]: Analyzing trace with hash -329027746, now seen corresponding path program 1 times [2024-11-27 23:40:17,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:40:17,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762558216] [2024-11-27 23:40:17,270 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:40:17,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:40:17,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:40:17,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1716168308] [2024-11-27 23:40:17,312 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:40:17,312 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:40:17,312 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:40:17,314 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:40:17,315 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2024-11-27 23:40:17,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:40:17,454 INFO L256 TraceCheckSpWp]: Trace formula consists of 731 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-27 23:40:17,458 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:40:18,564 INFO L134 CoverageAnalysis]: Checked inductivity of 2972 backedges. 0 proven. 860 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-27 23:40:18,564 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:40:20,239 INFO L134 CoverageAnalysis]: Checked inductivity of 2972 backedges. 0 proven. 860 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-27 23:40:20,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:40:20,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762558216] [2024-11-27 23:40:20,239 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:40:20,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1716168308] [2024-11-27 23:40:20,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1716168308] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:40:20,239 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 23:40:20,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 21 [2024-11-27 23:40:20,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271335114] [2024-11-27 23:40:20,240 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 23:40:20,241 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-27 23:40:20,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:40:20,242 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-27 23:40:20,242 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=330, Unknown=0, NotChecked=0, Total=462 [2024-11-27 23:40:20,242 INFO L87 Difference]: Start difference. First operand 594 states and 645 transitions. Second operand has 22 states, 21 states have (on average 34.476190476190474) internal successors, (724), 22 states have internal predecessors, (724), 12 states have call successors, (66), 1 states have call predecessors, (66), 1 states have return successors, (66), 12 states have call predecessors, (66), 12 states have call successors, (66) [2024-11-27 23:40:24,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:40:24,813 INFO L93 Difference]: Finished difference Result 904 states and 981 transitions. [2024-11-27 23:40:24,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-27 23:40:24,814 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 34.476190476190474) internal successors, (724), 22 states have internal predecessors, (724), 12 states have call successors, (66), 1 states have call predecessors, (66), 1 states have return successors, (66), 12 states have call predecessors, (66), 12 states have call successors, (66) Word has length 527 [2024-11-27 23:40:24,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:40:24,816 INFO L225 Difference]: With dead ends: 904 [2024-11-27 23:40:24,816 INFO L226 Difference]: Without dead ends: 734 [2024-11-27 23:40:24,817 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1060 GetRequests, 1032 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=266, Invalid=604, Unknown=0, NotChecked=0, Total=870 [2024-11-27 23:40:24,817 INFO L435 NwaCegarLoop]: 225 mSDtfsCounter, 839 mSDsluCounter, 1927 mSDsCounter, 0 mSdLazyCounter, 2662 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 839 SdHoareTripleChecker+Valid, 2152 SdHoareTripleChecker+Invalid, 2744 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 2662 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-11-27 23:40:24,817 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [839 Valid, 2152 Invalid, 2744 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 2662 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2024-11-27 23:40:24,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 734 states. [2024-11-27 23:40:24,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 734 to 714. [2024-11-27 23:40:24,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 714 states, 652 states have (on average 1.0061349693251533) internal successors, (656), 653 states have internal predecessors, (656), 59 states have call successors, (59), 1 states have call predecessors, (59), 1 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2024-11-27 23:40:24,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 714 states to 714 states and 774 transitions. [2024-11-27 23:40:24,918 INFO L78 Accepts]: Start accepts. Automaton has 714 states and 774 transitions. Word has length 527 [2024-11-27 23:40:24,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:40:24,918 INFO L471 AbstractCegarLoop]: Abstraction has 714 states and 774 transitions. [2024-11-27 23:40:24,918 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 34.476190476190474) internal successors, (724), 22 states have internal predecessors, (724), 12 states have call successors, (66), 1 states have call predecessors, (66), 1 states have return successors, (66), 12 states have call predecessors, (66), 12 states have call successors, (66) [2024-11-27 23:40:24,918 INFO L276 IsEmpty]: Start isEmpty. Operand 714 states and 774 transitions. [2024-11-27 23:40:24,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 734 [2024-11-27 23:40:24,922 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:40:24,922 INFO L218 NwaCegarLoop]: trace histogram [46, 46, 46, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:40:24,928 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Forceful destruction successful, exit code 0 [2024-11-27 23:40:25,122 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59 [2024-11-27 23:40:25,122 INFO L396 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr65ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 23:40:25,123 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:40:25,123 INFO L85 PathProgramCache]: Analyzing trace with hash -206733109, now seen corresponding path program 3 times [2024-11-27 23:40:25,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:40:25,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600074875] [2024-11-27 23:40:25,123 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 23:40:25,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:40:25,317 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 17 check-sat command(s) [2024-11-27 23:40:25,317 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 23:40:25,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1745467817] [2024-11-27 23:40:25,320 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 23:40:25,321 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:40:25,321 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:40:25,323 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:40:25,327 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2024-11-27 23:40:26,190 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-27 23:40:26,190 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:40:26,191 INFO L256 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-27 23:40:26,196 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:40:28,284 INFO L134 CoverageAnalysis]: Checked inductivity of 6236 backedges. 607 proven. 0 refuted. 0 times theorem prover too weak. 5629 trivial. 0 not checked. [2024-11-27 23:40:28,284 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:40:28,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:40:28,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600074875] [2024-11-27 23:40:28,285 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:40:28,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1745467817] [2024-11-27 23:40:28,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1745467817] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:40:28,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:40:28,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-27 23:40:28,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281070690] [2024-11-27 23:40:28,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:40:28,286 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-27 23:40:28,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:40:28,287 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-27 23:40:28,287 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2024-11-27 23:40:28,287 INFO L87 Difference]: Start difference. First operand 714 states and 774 transitions. Second operand has 12 states, 11 states have (on average 12.090909090909092) internal successors, (133), 12 states have internal predecessors, (133), 3 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-27 23:40:28,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:40:28,963 INFO L93 Difference]: Finished difference Result 716 states and 776 transitions. [2024-11-27 23:40:28,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-27 23:40:28,964 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 12.090909090909092) internal successors, (133), 12 states have internal predecessors, (133), 3 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 733 [2024-11-27 23:40:28,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:40:28,966 INFO L225 Difference]: With dead ends: 716 [2024-11-27 23:40:28,966 INFO L226 Difference]: Without dead ends: 702 [2024-11-27 23:40:28,966 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 736 GetRequests, 722 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2024-11-27 23:40:28,966 INFO L435 NwaCegarLoop]: 53 mSDtfsCounter, 161 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 435 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 447 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 435 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-27 23:40:28,966 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 306 Invalid, 447 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 435 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-27 23:40:28,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 702 states. [2024-11-27 23:40:29,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 702 to 700. [2024-11-27 23:40:29,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 700 states, 640 states have (on average 1.0015625) internal successors, (641), 640 states have internal predecessors, (641), 58 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2024-11-27 23:40:29,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 700 states to 700 states and 757 transitions. [2024-11-27 23:40:29,084 INFO L78 Accepts]: Start accepts. Automaton has 700 states and 757 transitions. Word has length 733 [2024-11-27 23:40:29,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:40:29,084 INFO L471 AbstractCegarLoop]: Abstraction has 700 states and 757 transitions. [2024-11-27 23:40:29,084 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 12.090909090909092) internal successors, (133), 12 states have internal predecessors, (133), 3 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-27 23:40:29,084 INFO L276 IsEmpty]: Start isEmpty. Operand 700 states and 757 transitions. [2024-11-27 23:40:29,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 928 [2024-11-27 23:40:29,091 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:40:29,092 INFO L218 NwaCegarLoop]: trace histogram [58, 58, 58, 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, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:40:29,096 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Ended with exit code 0 [2024-11-27 23:40:29,292 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:40:29,292 INFO L396 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr89ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 23:40:29,293 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:40:29,293 INFO L85 PathProgramCache]: Analyzing trace with hash 1366806925, now seen corresponding path program 2 times [2024-11-27 23:40:29,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:40:29,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068164379] [2024-11-27 23:40:29,293 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:40:29,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:40:29,431 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 23:40:29,431 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 23:40:29,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [932789152] [2024-11-27 23:40:29,436 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:40:29,436 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:40:29,436 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:40:29,438 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:40:29,459 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Waiting until timeout for monitored process [2024-11-27 23:40:29,752 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 23:40:29,752 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:40:29,758 INFO L256 TraceCheckSpWp]: Trace formula consists of 1271 conjuncts, 43 conjuncts are in the unsatisfiable core [2024-11-27 23:40:29,766 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:40:32,069 INFO L134 CoverageAnalysis]: Checked inductivity of 9832 backedges. 0 proven. 3220 refuted. 0 times theorem prover too weak. 6612 trivial. 0 not checked. [2024-11-27 23:40:32,069 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:40:35,836 INFO L134 CoverageAnalysis]: Checked inductivity of 9832 backedges. 0 proven. 3220 refuted. 0 times theorem prover too weak. 6612 trivial. 0 not checked. [2024-11-27 23:40:35,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:40:35,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068164379] [2024-11-27 23:40:35,836 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:40:35,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [932789152] [2024-11-27 23:40:35,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [932789152] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:40:35,837 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 23:40:35,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21] total 41 [2024-11-27 23:40:35,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249557753] [2024-11-27 23:40:35,837 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 23:40:35,839 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2024-11-27 23:40:35,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:40:35,840 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2024-11-27 23:40:35,841 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=462, Invalid=1260, Unknown=0, NotChecked=0, Total=1722 [2024-11-27 23:40:35,841 INFO L87 Difference]: Start difference. First operand 700 states and 757 transitions. Second operand has 42 states, 41 states have (on average 31.073170731707318) internal successors, (1274), 42 states have internal predecessors, (1274), 22 states have call successors, (116), 1 states have call predecessors, (116), 1 states have return successors, (116), 22 states have call predecessors, (116), 22 states have call successors, (116) [2024-11-27 23:41:15,429 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.58s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 23:41:21,250 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 23:41:32,871 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 23:41:36,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:41:36,077 INFO L93 Difference]: Finished difference Result 1697 states and 1843 transitions. [2024-11-27 23:41:36,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-11-27 23:41:36,078 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 41 states have (on average 31.073170731707318) internal successors, (1274), 42 states have internal predecessors, (1274), 22 states have call successors, (116), 1 states have call predecessors, (116), 1 states have return successors, (116), 22 states have call predecessors, (116), 22 states have call successors, (116) Word has length 927 [2024-11-27 23:41:36,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:41:36,080 INFO L225 Difference]: With dead ends: 1697 [2024-11-27 23:41:36,080 INFO L226 Difference]: Without dead ends: 1306 [2024-11-27 23:41:36,081 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1870 GetRequests, 1812 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 29.8s TimeCoverageRelationStatistics Valid=1076, Invalid=2462, Unknown=2, NotChecked=0, Total=3540 [2024-11-27 23:41:36,081 INFO L435 NwaCegarLoop]: 390 mSDtfsCounter, 4337 mSDsluCounter, 6625 mSDsCounter, 0 mSdLazyCounter, 8892 mSolverCounterSat, 422 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4337 SdHoareTripleChecker+Valid, 7015 SdHoareTripleChecker+Invalid, 9316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 422 IncrementalHoareTripleChecker+Valid, 8892 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.4s IncrementalHoareTripleChecker+Time [2024-11-27 23:41:36,081 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4337 Valid, 7015 Invalid, 9316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [422 Valid, 8892 Invalid, 2 Unknown, 0 Unchecked, 31.4s Time] [2024-11-27 23:41:36,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1306 states. [2024-11-27 23:41:36,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1306 to 1300. [2024-11-27 23:41:36,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1300 states, 1190 states have (on average 1.0008403361344538) internal successors, (1191), 1190 states have internal predecessors, (1191), 108 states have call successors, (108), 1 states have call predecessors, (108), 1 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-27 23:41:36,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1300 states to 1300 states and 1407 transitions. [2024-11-27 23:41:36,310 INFO L78 Accepts]: Start accepts. Automaton has 1300 states and 1407 transitions. Word has length 927 [2024-11-27 23:41:36,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:41:36,311 INFO L471 AbstractCegarLoop]: Abstraction has 1300 states and 1407 transitions. [2024-11-27 23:41:36,311 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 41 states have (on average 31.073170731707318) internal successors, (1274), 42 states have internal predecessors, (1274), 22 states have call successors, (116), 1 states have call predecessors, (116), 1 states have return successors, (116), 22 states have call predecessors, (116), 22 states have call successors, (116) [2024-11-27 23:41:36,311 INFO L276 IsEmpty]: Start isEmpty. Operand 1300 states and 1407 transitions. [2024-11-27 23:41:36,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1728 [2024-11-27 23:41:36,329 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:41:36,330 INFO L218 NwaCegarLoop]: trace histogram [108, 108, 108, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 20, 20, 20, 20, 20, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:41:36,337 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Forceful destruction successful, exit code 0 [2024-11-27 23:41:36,532 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61,48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:41:36,532 INFO L396 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr89ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 23:41:36,532 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:41:36,533 INFO L85 PathProgramCache]: Analyzing trace with hash 1004432363, now seen corresponding path program 3 times [2024-11-27 23:41:36,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:41:36,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3227274] [2024-11-27 23:41:36,533 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 23:41:36,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:41:38,012 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 31 check-sat command(s) [2024-11-27 23:41:38,012 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:41:42,956 INFO L134 CoverageAnalysis]: Checked inductivity of 35552 backedges. 11416 proven. 1024 refuted. 0 times theorem prover too weak. 23112 trivial. 0 not checked. [2024-11-27 23:41:42,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:41:42,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3227274] [2024-11-27 23:41:42,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3227274] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:41:42,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1969868895] [2024-11-27 23:41:42,957 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 23:41:42,958 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:41:42,958 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:41:42,960 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:41:42,964 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd0ab54-0323-40d3-8312-8016d232bed2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Waiting until timeout for monitored process [2024-11-27 23:41:43,203 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-27 23:41:43,203 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:41:43,204 INFO L256 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-27 23:41:43,213 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:42:12,258 WARN L286 SmtUtils]: Spent 8.03s on a formula simplification that was a NOOP. DAG size: 32 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)