./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/mannadiv_valuebound1.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_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/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_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/mannadiv_valuebound1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/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_b8e54b83-557c-430b-baed-f5b93f613b70/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 4f0dc25e497896e48962fc4f59a3ea4856b5eb0408b9845e68b04a0b0a132067 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:00:53,545 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:00:53,620 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-28 04:00:53,626 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:00:53,626 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:00:53,666 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:00:53,667 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:00:53,667 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:00:53,667 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:00:53,667 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:00:53,667 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:00:53,668 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:00:53,668 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:00:53,668 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:00:53,668 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:00:53,668 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:00:53,668 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 04:00:53,669 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 04:00:53,669 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:00:53,669 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 04:00:53,672 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:00:53,672 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 04:00:53,674 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:00:53,674 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 04:00:53,674 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-28 04:00:53,674 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 04:00:53,674 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 04:00:53,674 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 04:00:53,674 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:00:53,674 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:00:53,674 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:00:53,675 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:00:53,675 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:00:53,675 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:00:53,675 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:00:53,675 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:00:53,675 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:00:53,675 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:00:53,675 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:00:53,675 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:00:53,675 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:00:53,676 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:00:53,676 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 04:00:53,676 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 04:00:53,676 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 04:00:53,676 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 04:00:53,676 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:00:53,676 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:00:53,676 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:00:53,676 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:00:53,676 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_b8e54b83-557c-430b-baed-f5b93f613b70/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 -> 4f0dc25e497896e48962fc4f59a3ea4856b5eb0408b9845e68b04a0b0a132067 [2024-11-28 04:00:53,956 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:00:53,966 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:00:53,969 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:00:53,970 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:00:53,970 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:00:53,971 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/nla-digbench-scaling/mannadiv_valuebound1.c [2024-11-28 04:00:56,927 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/data/f9daa1daa/a0bc55a75d704730b2b8df4a7d23cbc9/FLAG1e8f5c942 [2024-11-28 04:00:57,190 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:00:57,195 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/sv-benchmarks/c/nla-digbench-scaling/mannadiv_valuebound1.c [2024-11-28 04:00:57,204 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/data/f9daa1daa/a0bc55a75d704730b2b8df4a7d23cbc9/FLAG1e8f5c942 [2024-11-28 04:00:57,222 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/data/f9daa1daa/a0bc55a75d704730b2b8df4a7d23cbc9 [2024-11-28 04:00:57,225 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:00:57,228 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:00:57,230 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:00:57,231 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:00:57,235 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:00:57,236 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:00:57" (1/1) ... [2024-11-28 04:00:57,237 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54e8f2c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:00:57, skipping insertion in model container [2024-11-28 04:00:57,239 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:00:57" (1/1) ... [2024-11-28 04:00:57,254 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:00:57,422 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:00:57,431 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:00:57,451 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:00:57,472 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:00:57,472 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:00:57 WrapperNode [2024-11-28 04:00:57,473 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:00:57,474 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:00:57,474 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:00:57,474 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:00:57,484 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:00:57" (1/1) ... [2024-11-28 04:00:57,490 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:00:57" (1/1) ... [2024-11-28 04:00:57,508 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 68 [2024-11-28 04:00:57,510 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:00:57,510 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:00:57,511 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:00:57,511 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:00:57,519 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:00:57" (1/1) ... [2024-11-28 04:00:57,519 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:00:57" (1/1) ... [2024-11-28 04:00:57,524 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:00:57" (1/1) ... [2024-11-28 04:00:57,541 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-28 04:00:57,541 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:00:57" (1/1) ... [2024-11-28 04:00:57,542 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:00:57" (1/1) ... [2024-11-28 04:00:57,546 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:00:57" (1/1) ... [2024-11-28 04:00:57,547 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:00:57" (1/1) ... [2024-11-28 04:00:57,554 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:00:57" (1/1) ... [2024-11-28 04:00:57,555 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:00:57" (1/1) ... [2024-11-28 04:00:57,558 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:00:57" (1/1) ... [2024-11-28 04:00:57,560 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:00:57,561 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:00:57,561 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:00:57,561 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:00:57,562 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:00:57" (1/1) ... [2024-11-28 04:00:57,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:00:57,588 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:00:57,605 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 04:00:57,608 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 04:00:57,637 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:00:57,637 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 04:00:57,637 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 04:00:57,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 04:00:57,637 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:00:57,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:00:57,637 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-28 04:00:57,637 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-28 04:00:57,692 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:00:57,694 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:00:57,939 INFO L? ?]: Removed 45 outVars from TransFormulas that were not future-live. [2024-11-28 04:00:57,940 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:00:57,952 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:00:57,952 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 04:00:57,953 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:00:57 BoogieIcfgContainer [2024-11-28 04:00:57,953 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:00:57,955 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 04:00:57,956 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 04:00:57,961 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 04:00:57,961 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:00:57" (1/3) ... [2024-11-28 04:00:57,962 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@103b900d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:00:57, skipping insertion in model container [2024-11-28 04:00:57,963 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:00:57" (2/3) ... [2024-11-28 04:00:57,964 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@103b900d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:00:57, skipping insertion in model container [2024-11-28 04:00:57,965 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:00:57" (3/3) ... [2024-11-28 04:00:57,967 INFO L128 eAbstractionObserver]: Analyzing ICFG mannadiv_valuebound1.c [2024-11-28 04:00:57,986 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 04:00:57,987 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG mannadiv_valuebound1.c that has 3 procedures, 63 locations, 1 initial locations, 1 loop locations, and 20 error locations. [2024-11-28 04:00:58,059 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:00:58,074 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;@404c0367, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:00:58,074 INFO L334 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2024-11-28 04:00:58,079 INFO L276 IsEmpty]: Start isEmpty. Operand has 63 states, 36 states have (on average 1.7222222222222223) internal successors, (62), 56 states have internal predecessors, (62), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-28 04:00:58,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-28 04:00:58,087 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:00:58,088 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:00:58,088 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-28 04:00:58,094 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:00:58,096 INFO L85 PathProgramCache]: Analyzing trace with hash 1569050448, now seen corresponding path program 1 times [2024-11-28 04:00:58,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:00:58,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495567451] [2024-11-28 04:00:58,106 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:00:58,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:00:58,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:00:58,286 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-28 04:00:58,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:00:58,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495567451] [2024-11-28 04:00:58,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495567451] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:00:58,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1653970706] [2024-11-28 04:00:58,291 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:00:58,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:00:58,291 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:00:58,295 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:00:58,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 04:00:58,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:00:58,372 INFO L256 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 04:00:58,375 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:00:58,386 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-28 04:00:58,386 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:00:58,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1653970706] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:00:58,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:00:58,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-28 04:00:58,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942019567] [2024-11-28 04:00:58,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:00:58,394 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 04:00:58,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:00:58,417 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 04:00:58,419 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 04:00:58,421 INFO L87 Difference]: Start difference. First operand has 63 states, 36 states have (on average 1.7222222222222223) internal successors, (62), 56 states have internal predecessors, (62), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 04:00:58,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:00:58,450 INFO L93 Difference]: Finished difference Result 122 states and 139 transitions. [2024-11-28 04:00:58,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 04:00:58,452 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 14 [2024-11-28 04:00:58,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:00:58,461 INFO L225 Difference]: With dead ends: 122 [2024-11-28 04:00:58,461 INFO L226 Difference]: Without dead ends: 56 [2024-11-28 04:00:58,468 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 04:00:58,472 INFO L435 NwaCegarLoop]: 65 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, 65 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:00:58,476 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:00:58,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2024-11-28 04:00:58,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2024-11-28 04:00:58,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 31 states have (on average 1.6774193548387097) internal successors, (52), 50 states have internal predecessors, (52), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 04:00:58,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 58 transitions. [2024-11-28 04:00:58,534 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 58 transitions. Word has length 14 [2024-11-28 04:00:58,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:00:58,534 INFO L471 AbstractCegarLoop]: Abstraction has 56 states and 58 transitions. [2024-11-28 04:00:58,534 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 04:00:58,534 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 58 transitions. [2024-11-28 04:00:58,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-28 04:00:58,536 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:00:58,536 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:00:58,548 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 04:00:58,737 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-28 04:00:58,737 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-28 04:00:58,738 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:00:58,738 INFO L85 PathProgramCache]: Analyzing trace with hash 1177870480, now seen corresponding path program 1 times [2024-11-28 04:00:58,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:00:58,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893844668] [2024-11-28 04:00:58,738 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:00:58,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:00:58,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:00:58,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [921563497] [2024-11-28 04:00:58,776 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:00:58,776 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:00:58,776 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:00:58,778 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:00:58,781 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 04:00:58,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:00:58,829 INFO L256 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 04:00:58,833 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:00:58,855 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 04:00:58,855 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:00:58,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:00:58,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893844668] [2024-11-28 04:00:58,856 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:00:58,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [921563497] [2024-11-28 04:00:58,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [921563497] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:00:58,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:00:58,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:00:58,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333809336] [2024-11-28 04:00:58,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:00:58,858 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:00:58,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:00:58,858 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:00:58,859 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:00:58,859 INFO L87 Difference]: Start difference. First operand 56 states and 58 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 04:00:58,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:00:58,990 INFO L93 Difference]: Finished difference Result 89 states and 99 transitions. [2024-11-28 04:00:58,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:00:58,991 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 14 [2024-11-28 04:00:58,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:00:58,992 INFO L225 Difference]: With dead ends: 89 [2024-11-28 04:00:58,992 INFO L226 Difference]: Without dead ends: 83 [2024-11-28 04:00:58,993 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:00:58,993 INFO L435 NwaCegarLoop]: 41 mSDtfsCounter, 26 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:00:58,994 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 74 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:00:58,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2024-11-28 04:00:59,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 75. [2024-11-28 04:00:59,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 49 states have (on average 1.6734693877551021) internal successors, (82), 68 states have internal predecessors, (82), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-28 04:00:59,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 90 transitions. [2024-11-28 04:00:59,023 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 90 transitions. Word has length 14 [2024-11-28 04:00:59,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:00:59,025 INFO L471 AbstractCegarLoop]: Abstraction has 75 states and 90 transitions. [2024-11-28 04:00:59,025 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 04:00:59,026 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 90 transitions. [2024-11-28 04:00:59,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-28 04:00:59,026 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:00:59,026 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:00:59,039 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-28 04:00:59,227 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-11-28 04:00:59,227 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-28 04:00:59,228 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:00:59,228 INFO L85 PathProgramCache]: Analyzing trace with hash -1937833358, now seen corresponding path program 1 times [2024-11-28 04:00:59,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:00:59,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056488855] [2024-11-28 04:00:59,228 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:00:59,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:00:59,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:00:59,357 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 04:00:59,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:00:59,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056488855] [2024-11-28 04:00:59,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056488855] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:00:59,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:00:59,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:00:59,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123077075] [2024-11-28 04:00:59,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:00:59,358 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:00:59,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:00:59,359 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:00:59,359 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:00:59,361 INFO L87 Difference]: Start difference. First operand 75 states and 90 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 04:00:59,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:00:59,502 INFO L93 Difference]: Finished difference Result 117 states and 149 transitions. [2024-11-28 04:00:59,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:00:59,504 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 16 [2024-11-28 04:00:59,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:00:59,505 INFO L225 Difference]: With dead ends: 117 [2024-11-28 04:00:59,506 INFO L226 Difference]: Without dead ends: 110 [2024-11-28 04:00:59,506 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:00:59,507 INFO L435 NwaCegarLoop]: 37 mSDtfsCounter, 33 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:00:59,509 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 71 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:00:59,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2024-11-28 04:00:59,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 106. [2024-11-28 04:00:59,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 78 states have (on average 1.5897435897435896) internal successors, (124), 97 states have internal predecessors, (124), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-28 04:00:59,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 136 transitions. [2024-11-28 04:00:59,532 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 136 transitions. Word has length 16 [2024-11-28 04:00:59,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:00:59,533 INFO L471 AbstractCegarLoop]: Abstraction has 106 states and 136 transitions. [2024-11-28 04:00:59,533 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 04:00:59,533 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 136 transitions. [2024-11-28 04:00:59,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-28 04:00:59,533 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:00:59,534 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:00:59,534 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 04:00:59,536 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-28 04:00:59,536 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:00:59,536 INFO L85 PathProgramCache]: Analyzing trace with hash 56708097, now seen corresponding path program 1 times [2024-11-28 04:00:59,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:00:59,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619416968] [2024-11-28 04:00:59,537 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:00:59,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:00:59,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:00:59,643 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 04:00:59,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:00:59,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619416968] [2024-11-28 04:00:59,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619416968] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:00:59,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:00:59,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:00:59,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598579430] [2024-11-28 04:00:59,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:00:59,644 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:00:59,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:00:59,644 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:00:59,645 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:00:59,645 INFO L87 Difference]: Start difference. First operand 106 states and 136 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 04:00:59,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:00:59,758 INFO L93 Difference]: Finished difference Result 112 states and 137 transitions. [2024-11-28 04:00:59,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:00:59,758 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2024-11-28 04:00:59,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:00:59,759 INFO L225 Difference]: With dead ends: 112 [2024-11-28 04:00:59,759 INFO L226 Difference]: Without dead ends: 103 [2024-11-28 04:00:59,759 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:00:59,760 INFO L435 NwaCegarLoop]: 41 mSDtfsCounter, 31 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:00:59,760 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 75 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:00:59,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2024-11-28 04:00:59,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 101. [2024-11-28 04:00:59,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 73 states have (on average 1.5616438356164384) internal successors, (114), 92 states have internal predecessors, (114), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-28 04:00:59,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 126 transitions. [2024-11-28 04:00:59,771 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 126 transitions. Word has length 17 [2024-11-28 04:00:59,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:00:59,772 INFO L471 AbstractCegarLoop]: Abstraction has 101 states and 126 transitions. [2024-11-28 04:00:59,772 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 04:00:59,772 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 126 transitions. [2024-11-28 04:00:59,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-28 04:00:59,772 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:00:59,772 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:00:59,773 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 04:00:59,773 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-28 04:00:59,773 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:00:59,773 INFO L85 PathProgramCache]: Analyzing trace with hash 1757951060, now seen corresponding path program 1 times [2024-11-28 04:00:59,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:00:59,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425262184] [2024-11-28 04:00:59,773 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:00:59,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:00:59,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:01:00,015 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 04:01:00,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:01:00,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425262184] [2024-11-28 04:01:00,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425262184] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:01:00,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [282701883] [2024-11-28 04:01:00,015 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:01:00,015 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:01:00,015 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:01:00,022 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:01:00,023 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 04:01:00,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:01:00,069 INFO L256 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 04:01:00,070 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:01:00,217 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 04:01:00,217 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:01:00,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [282701883] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:01:00,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:01:00,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2024-11-28 04:01:00,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624381006] [2024-11-28 04:01:00,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:01:00,217 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:01:00,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:01:00,218 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:01:00,218 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:01:00,218 INFO L87 Difference]: Start difference. First operand 101 states and 126 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 04:01:00,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:01:00,367 INFO L93 Difference]: Finished difference Result 104 states and 130 transitions. [2024-11-28 04:01:00,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:01:00,368 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 18 [2024-11-28 04:01:00,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:01:00,369 INFO L225 Difference]: With dead ends: 104 [2024-11-28 04:01:00,369 INFO L226 Difference]: Without dead ends: 103 [2024-11-28 04:01:00,369 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:01:00,370 INFO L435 NwaCegarLoop]: 39 mSDtfsCounter, 70 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:01:00,370 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 62 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:01:00,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2024-11-28 04:01:00,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 101. [2024-11-28 04:01:00,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 73 states have (on average 1.547945205479452) internal successors, (113), 92 states have internal predecessors, (113), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-28 04:01:00,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 125 transitions. [2024-11-28 04:01:00,389 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 125 transitions. Word has length 18 [2024-11-28 04:01:00,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:01:00,390 INFO L471 AbstractCegarLoop]: Abstraction has 101 states and 125 transitions. [2024-11-28 04:01:00,390 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 04:01:00,390 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 125 transitions. [2024-11-28 04:01:00,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-28 04:01:00,394 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:01:00,394 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:01:00,404 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-28 04:01:00,595 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:01:00,595 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-28 04:01:00,595 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:01:00,595 INFO L85 PathProgramCache]: Analyzing trace with hash -1338091933, now seen corresponding path program 1 times [2024-11-28 04:01:00,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:01:00,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012069170] [2024-11-28 04:01:00,596 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:01:00,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:01:00,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:01:00,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [935679225] [2024-11-28 04:01:00,612 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:01:00,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:01:00,612 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:01:00,617 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:01:00,621 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 04:01:00,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:01:00,660 INFO L256 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 04:01:00,661 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:01:00,776 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 04:01:00,776 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:01:00,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:01:00,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012069170] [2024-11-28 04:01:00,777 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:01:00,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [935679225] [2024-11-28 04:01:00,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [935679225] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:01:00,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:01:00,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:01:00,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126313927] [2024-11-28 04:01:00,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:01:00,777 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:01:00,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:01:00,778 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:01:00,778 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:01:00,778 INFO L87 Difference]: Start difference. First operand 101 states and 125 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 04:01:00,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:01:00,943 INFO L93 Difference]: Finished difference Result 102 states and 125 transitions. [2024-11-28 04:01:00,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:01:00,944 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 19 [2024-11-28 04:01:00,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:01:00,945 INFO L225 Difference]: With dead ends: 102 [2024-11-28 04:01:00,945 INFO L226 Difference]: Without dead ends: 101 [2024-11-28 04:01:00,945 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:01:00,946 INFO L435 NwaCegarLoop]: 44 mSDtfsCounter, 63 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:01:00,946 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 67 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:01:00,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2024-11-28 04:01:00,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2024-11-28 04:01:00,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 73 states have (on average 1.5342465753424657) internal successors, (112), 92 states have internal predecessors, (112), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-28 04:01:00,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 124 transitions. [2024-11-28 04:01:00,968 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 124 transitions. Word has length 19 [2024-11-28 04:01:00,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:01:00,968 INFO L471 AbstractCegarLoop]: Abstraction has 101 states and 124 transitions. [2024-11-28 04:01:00,969 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 04:01:00,969 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 124 transitions. [2024-11-28 04:01:00,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-28 04:01:00,970 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:01:00,970 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:01:00,979 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-28 04:01:01,170 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-28 04:01:01,171 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-28 04:01:01,171 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:01:01,171 INFO L85 PathProgramCache]: Analyzing trace with hash -1759561673, now seen corresponding path program 1 times [2024-11-28 04:01:01,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:01:01,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002089096] [2024-11-28 04:01:01,171 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:01:01,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:01:01,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:01:01,345 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 04:01:01,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:01:01,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002089096] [2024-11-28 04:01:01,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002089096] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:01:01,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [619347668] [2024-11-28 04:01:01,345 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:01:01,345 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:01:01,345 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:01:01,349 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:01:01,351 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 04:01:01,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:01:01,403 INFO L256 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 04:01:01,405 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:01:01,471 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 04:01:01,471 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:01:01,598 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 04:01:01,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [619347668] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:01:01,598 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:01:01,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2024-11-28 04:01:01,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718798961] [2024-11-28 04:01:01,598 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:01:01,599 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 04:01:01,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:01:01,599 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 04:01:01,600 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:01:01,600 INFO L87 Difference]: Start difference. First operand 101 states and 124 transitions. Second operand has 9 states, 8 states have (on average 5.125) internal successors, (41), 7 states have internal predecessors, (41), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-28 04:01:01,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:01:01,760 INFO L93 Difference]: Finished difference Result 152 states and 189 transitions. [2024-11-28 04:01:01,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:01:01,760 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.125) internal successors, (41), 7 states have internal predecessors, (41), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) Word has length 31 [2024-11-28 04:01:01,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:01:01,761 INFO L225 Difference]: With dead ends: 152 [2024-11-28 04:01:01,761 INFO L226 Difference]: Without dead ends: 150 [2024-11-28 04:01:01,762 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:01:01,763 INFO L435 NwaCegarLoop]: 42 mSDtfsCounter, 120 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:01:01,763 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 236 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:01:01,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2024-11-28 04:01:01,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 140. [2024-11-28 04:01:01,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 110 states have (on average 1.5272727272727273) internal successors, (168), 129 states have internal predecessors, (168), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-28 04:01:01,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 184 transitions. [2024-11-28 04:01:01,777 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 184 transitions. Word has length 31 [2024-11-28 04:01:01,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:01:01,778 INFO L471 AbstractCegarLoop]: Abstraction has 140 states and 184 transitions. [2024-11-28 04:01:01,778 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.125) internal successors, (41), 7 states have internal predecessors, (41), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-28 04:01:01,778 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 184 transitions. [2024-11-28 04:01:01,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-28 04:01:01,779 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:01:01,779 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:01:01,789 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-28 04:01:01,983 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:01:01,983 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-28 04:01:01,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:01:01,984 INFO L85 PathProgramCache]: Analyzing trace with hash 1288163071, now seen corresponding path program 1 times [2024-11-28 04:01:01,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:01:01,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811569015] [2024-11-28 04:01:01,984 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:01:01,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:01:01,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:01:02,055 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 04:01:02,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:01:02,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811569015] [2024-11-28 04:01:02,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811569015] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:01:02,056 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:01:02,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:01:02,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146842969] [2024-11-28 04:01:02,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:01:02,057 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:01:02,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:01:02,057 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:01:02,057 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:01:02,058 INFO L87 Difference]: Start difference. First operand 140 states and 184 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 04:01:02,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:01:02,104 INFO L93 Difference]: Finished difference Result 140 states and 184 transitions. [2024-11-28 04:01:02,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:01:02,105 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 32 [2024-11-28 04:01:02,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:01:02,106 INFO L225 Difference]: With dead ends: 140 [2024-11-28 04:01:02,106 INFO L226 Difference]: Without dead ends: 138 [2024-11-28 04:01:02,106 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:01:02,107 INFO L435 NwaCegarLoop]: 43 mSDtfsCounter, 56 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:01:02,107 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 72 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:01:02,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2024-11-28 04:01:02,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2024-11-28 04:01:02,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 110 states have (on average 1.481818181818182) internal successors, (163), 127 states have internal predecessors, (163), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-28 04:01:02,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 179 transitions. [2024-11-28 04:01:02,120 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 179 transitions. Word has length 32 [2024-11-28 04:01:02,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:01:02,120 INFO L471 AbstractCegarLoop]: Abstraction has 138 states and 179 transitions. [2024-11-28 04:01:02,121 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 04:01:02,121 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 179 transitions. [2024-11-28 04:01:02,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-28 04:01:02,121 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:01:02,121 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:01:02,122 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 04:01:02,122 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-28 04:01:02,122 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:01:02,122 INFO L85 PathProgramCache]: Analyzing trace with hash 982515032, now seen corresponding path program 1 times [2024-11-28 04:01:02,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:01:02,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639023059] [2024-11-28 04:01:02,123 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:01:02,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:01:02,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:01:02,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1942810927] [2024-11-28 04:01:02,155 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:01:02,155 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:01:02,155 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:01:02,159 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:01:02,161 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-28 04:01:02,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:01:02,202 INFO L256 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 04:01:02,204 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:01:02,421 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 04:01:02,422 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:01:02,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:01:02,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639023059] [2024-11-28 04:01:02,716 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:01:02,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1942810927] [2024-11-28 04:01:02,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1942810927] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:01:02,716 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:01:02,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-11-28 04:01:02,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192912107] [2024-11-28 04:01:02,716 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:01:02,717 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:01:02,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:01:02,717 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:01:02,717 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:01:02,718 INFO L87 Difference]: Start difference. First operand 138 states and 179 transitions. Second operand has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 04:01:02,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:01:02,914 INFO L93 Difference]: Finished difference Result 145 states and 182 transitions. [2024-11-28 04:01:02,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:01:02,915 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 33 [2024-11-28 04:01:02,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:01:02,916 INFO L225 Difference]: With dead ends: 145 [2024-11-28 04:01:02,916 INFO L226 Difference]: Without dead ends: 138 [2024-11-28 04:01:02,916 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:01:02,917 INFO L435 NwaCegarLoop]: 29 mSDtfsCounter, 52 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:01:02,917 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 50 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:01:02,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2024-11-28 04:01:02,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 134. [2024-11-28 04:01:02,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 111 states have (on average 1.3603603603603605) internal successors, (151), 123 states have internal predecessors, (151), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-28 04:01:02,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 167 transitions. [2024-11-28 04:01:02,933 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 167 transitions. Word has length 33 [2024-11-28 04:01:02,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:01:02,933 INFO L471 AbstractCegarLoop]: Abstraction has 134 states and 167 transitions. [2024-11-28 04:01:02,934 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 04:01:02,934 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 167 transitions. [2024-11-28 04:01:02,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-28 04:01:02,935 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:01:02,935 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:01:02,945 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-28 04:01:03,135 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:01:03,136 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-28 04:01:03,136 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:01:03,136 INFO L85 PathProgramCache]: Analyzing trace with hash 393194967, now seen corresponding path program 1 times [2024-11-28 04:01:03,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:01:03,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704339576] [2024-11-28 04:01:03,136 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:01:03,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:01:03,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:01:03,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1145214881] [2024-11-28 04:01:03,159 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:01:03,159 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:01:03,160 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:01:03,162 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:01:03,165 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-28 04:01:03,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:01:03,216 INFO L256 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 04:01:03,217 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:01:03,397 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 04:01:03,398 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:01:03,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:01:03,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704339576] [2024-11-28 04:01:03,686 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:01:03,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1145214881] [2024-11-28 04:01:03,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1145214881] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:01:03,687 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:01:03,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-11-28 04:01:03,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033222959] [2024-11-28 04:01:03,687 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:01:03,687 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:01:03,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:01:03,688 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:01:03,688 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:01:03,688 INFO L87 Difference]: Start difference. First operand 134 states and 167 transitions. Second operand has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 04:01:03,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:01:03,858 INFO L93 Difference]: Finished difference Result 180 states and 223 transitions. [2024-11-28 04:01:03,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:01:03,859 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 34 [2024-11-28 04:01:03,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:01:03,861 INFO L225 Difference]: With dead ends: 180 [2024-11-28 04:01:03,861 INFO L226 Difference]: Without dead ends: 177 [2024-11-28 04:01:03,862 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:01:03,862 INFO L435 NwaCegarLoop]: 38 mSDtfsCounter, 63 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:01:03,863 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 103 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:01:03,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2024-11-28 04:01:03,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 169. [2024-11-28 04:01:03,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 144 states have (on average 1.3472222222222223) internal successors, (194), 156 states have internal predecessors, (194), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-28 04:01:03,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 214 transitions. [2024-11-28 04:01:03,881 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 214 transitions. Word has length 34 [2024-11-28 04:01:03,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:01:03,882 INFO L471 AbstractCegarLoop]: Abstraction has 169 states and 214 transitions. [2024-11-28 04:01:03,882 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 04:01:03,882 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 214 transitions. [2024-11-28 04:01:03,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-28 04:01:03,883 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:01:03,883 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:01:03,892 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-28 04:01:04,087 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-28 04:01:04,088 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-28 04:01:04,088 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:01:04,088 INFO L85 PathProgramCache]: Analyzing trace with hash 133303152, now seen corresponding path program 1 times [2024-11-28 04:01:04,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:01:04,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779012158] [2024-11-28 04:01:04,089 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:01:04,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:01:04,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:01:04,179 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 04:01:04,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:01:04,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779012158] [2024-11-28 04:01:04,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [779012158] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:01:04,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1691495330] [2024-11-28 04:01:04,179 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:01:04,179 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:01:04,179 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:01:04,183 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:01:04,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-28 04:01:04,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:01:04,226 INFO L256 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:01:04,227 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:01:04,375 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 04:01:04,375 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:01:04,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1691495330] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:01:04,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:01:04,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2024-11-28 04:01:04,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123386879] [2024-11-28 04:01:04,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:01:04,377 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:01:04,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:01:04,377 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:01:04,377 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:01:04,377 INFO L87 Difference]: Start difference. First operand 169 states and 214 transitions. Second operand has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 04:01:04,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:01:04,470 INFO L93 Difference]: Finished difference Result 169 states and 214 transitions. [2024-11-28 04:01:04,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:01:04,471 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 35 [2024-11-28 04:01:04,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:01:04,472 INFO L225 Difference]: With dead ends: 169 [2024-11-28 04:01:04,472 INFO L226 Difference]: Without dead ends: 167 [2024-11-28 04:01:04,472 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:01:04,473 INFO L435 NwaCegarLoop]: 29 mSDtfsCounter, 24 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:01:04,473 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 51 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:01:04,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2024-11-28 04:01:04,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 164. [2024-11-28 04:01:04,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 141 states have (on average 1.3333333333333333) internal successors, (188), 151 states have internal predecessors, (188), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-28 04:01:04,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 208 transitions. [2024-11-28 04:01:04,488 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 208 transitions. Word has length 35 [2024-11-28 04:01:04,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:01:04,489 INFO L471 AbstractCegarLoop]: Abstraction has 164 states and 208 transitions. [2024-11-28 04:01:04,489 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 04:01:04,489 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 208 transitions. [2024-11-28 04:01:04,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-28 04:01:04,489 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:01:04,489 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-28 04:01:04,502 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-28 04:01:04,690 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-28 04:01:04,690 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-28 04:01:04,691 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:01:04,691 INFO L85 PathProgramCache]: Analyzing trace with hash -162569533, now seen corresponding path program 1 times [2024-11-28 04:01:04,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:01:04,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745391337] [2024-11-28 04:01:04,691 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:01:04,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:01:04,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:01:04,903 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 04:01:04,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:01:04,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745391337] [2024-11-28 04:01:04,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745391337] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:01:04,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2029322480] [2024-11-28 04:01:04,903 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:01:04,903 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:01:04,904 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:01:04,905 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:01:04,909 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-28 04:01:04,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:01:04,946 INFO L256 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 04:01:04,947 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:01:05,051 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 04:01:05,051 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:01:05,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2029322480] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:01:05,227 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:01:05,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 3] total 11 [2024-11-28 04:01:05,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975051847] [2024-11-28 04:01:05,228 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:01:05,228 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 04:01:05,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:01:05,228 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 04:01:05,229 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:01:05,229 INFO L87 Difference]: Start difference. First operand 164 states and 208 transitions. Second operand has 12 states, 11 states have (on average 4.454545454545454) internal successors, (49), 11 states have internal predecessors, (49), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2024-11-28 04:01:05,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:01:05,848 INFO L93 Difference]: Finished difference Result 176 states and 212 transitions. [2024-11-28 04:01:05,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-28 04:01:05,849 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.454545454545454) internal successors, (49), 11 states have internal predecessors, (49), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) Word has length 36 [2024-11-28 04:01:05,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:01:05,850 INFO L225 Difference]: With dead ends: 176 [2024-11-28 04:01:05,850 INFO L226 Difference]: Without dead ends: 161 [2024-11-28 04:01:05,851 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=182, Invalid=468, Unknown=0, NotChecked=0, Total=650 [2024-11-28 04:01:05,851 INFO L435 NwaCegarLoop]: 18 mSDtfsCounter, 118 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 313 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:01:05,851 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 118 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 313 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:01:05,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2024-11-28 04:01:05,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 155. [2024-11-28 04:01:05,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 133 states have (on average 1.263157894736842) internal successors, (168), 142 states have internal predecessors, (168), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-28 04:01:05,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 188 transitions. [2024-11-28 04:01:05,868 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 188 transitions. Word has length 36 [2024-11-28 04:01:05,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:01:05,869 INFO L471 AbstractCegarLoop]: Abstraction has 155 states and 188 transitions. [2024-11-28 04:01:05,869 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.454545454545454) internal successors, (49), 11 states have internal predecessors, (49), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2024-11-28 04:01:05,870 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 188 transitions. [2024-11-28 04:01:05,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-28 04:01:05,872 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:01:05,872 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-28 04:01:05,883 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-28 04:01:06,073 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-28 04:01:06,073 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-28 04:01:06,074 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:01:06,074 INFO L85 PathProgramCache]: Analyzing trace with hash -744688174, now seen corresponding path program 1 times [2024-11-28 04:01:06,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:01:06,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600574760] [2024-11-28 04:01:06,074 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:01:06,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:01:06,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:01:06,178 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 04:01:06,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:01:06,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600574760] [2024-11-28 04:01:06,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600574760] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:01:06,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:01:06,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:01:06,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122136944] [2024-11-28 04:01:06,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:01:06,179 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:01:06,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:01:06,180 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:01:06,180 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:01:06,180 INFO L87 Difference]: Start difference. First operand 155 states and 188 transitions. Second operand has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 04:01:06,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:01:06,340 INFO L93 Difference]: Finished difference Result 156 states and 188 transitions. [2024-11-28 04:01:06,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:01:06,341 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 37 [2024-11-28 04:01:06,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:01:06,342 INFO L225 Difference]: With dead ends: 156 [2024-11-28 04:01:06,342 INFO L226 Difference]: Without dead ends: 155 [2024-11-28 04:01:06,343 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:01:06,343 INFO L435 NwaCegarLoop]: 30 mSDtfsCounter, 0 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:01:06,346 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 54 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:01:06,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2024-11-28 04:01:06,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 155. [2024-11-28 04:01:06,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 133 states have (on average 1.2330827067669172) internal successors, (164), 142 states have internal predecessors, (164), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-28 04:01:06,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 184 transitions. [2024-11-28 04:01:06,359 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 184 transitions. Word has length 37 [2024-11-28 04:01:06,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:01:06,360 INFO L471 AbstractCegarLoop]: Abstraction has 155 states and 184 transitions. [2024-11-28 04:01:06,360 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 04:01:06,360 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 184 transitions. [2024-11-28 04:01:06,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-28 04:01:06,361 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:01:06,361 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-28 04:01:06,361 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-28 04:01:06,361 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-28 04:01:06,362 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:01:06,362 INFO L85 PathProgramCache]: Analyzing trace with hash 1295494428, now seen corresponding path program 1 times [2024-11-28 04:01:06,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:01:06,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346452840] [2024-11-28 04:01:06,362 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:01:06,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:01:06,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:01:06,559 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 04:01:06,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:01:06,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346452840] [2024-11-28 04:01:06,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [346452840] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:01:06,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [756627921] [2024-11-28 04:01:06,560 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:01:06,560 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:01:06,561 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:01:06,563 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:01:06,565 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-28 04:01:06,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:01:06,610 INFO L256 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-28 04:01:06,612 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:01:06,767 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 04:01:06,767 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:01:07,072 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 04:01:07,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [756627921] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:01:07,073 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:01:07,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 16 [2024-11-28 04:01:07,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353692172] [2024-11-28 04:01:07,073 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:01:07,074 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-28 04:01:07,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:01:07,074 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-28 04:01:07,075 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2024-11-28 04:01:07,075 INFO L87 Difference]: Start difference. First operand 155 states and 184 transitions. Second operand has 17 states, 16 states have (on average 3.0625) internal successors, (49), 16 states have internal predecessors, (49), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 04:01:07,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:01:07,559 INFO L93 Difference]: Finished difference Result 156 states and 184 transitions. [2024-11-28 04:01:07,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 04:01:07,559 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 3.0625) internal successors, (49), 16 states have internal predecessors, (49), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 37 [2024-11-28 04:01:07,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:01:07,560 INFO L225 Difference]: With dead ends: 156 [2024-11-28 04:01:07,561 INFO L226 Difference]: Without dead ends: 153 [2024-11-28 04:01:07,561 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 61 SyntacticMatches, 5 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=159, Invalid=491, Unknown=0, NotChecked=0, Total=650 [2024-11-28 04:01:07,562 INFO L435 NwaCegarLoop]: 16 mSDtfsCounter, 92 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:01:07,562 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 138 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:01:07,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2024-11-28 04:01:07,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 131. [2024-11-28 04:01:07,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 113 states have (on average 1.2035398230088497) internal successors, (136), 119 states have internal predecessors, (136), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-28 04:01:07,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 154 transitions. [2024-11-28 04:01:07,575 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 154 transitions. Word has length 37 [2024-11-28 04:01:07,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:01:07,575 INFO L471 AbstractCegarLoop]: Abstraction has 131 states and 154 transitions. [2024-11-28 04:01:07,575 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 3.0625) internal successors, (49), 16 states have internal predecessors, (49), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 04:01:07,575 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 154 transitions. [2024-11-28 04:01:07,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-28 04:01:07,576 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:01:07,576 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:01:07,585 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-28 04:01:07,777 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-28 04:01:07,777 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-28 04:01:07,777 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:01:07,777 INFO L85 PathProgramCache]: Analyzing trace with hash 1505621659, now seen corresponding path program 1 times [2024-11-28 04:01:07,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:01:07,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494459638] [2024-11-28 04:01:07,778 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:01:07,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:01:07,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:01:07,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1473887771] [2024-11-28 04:01:07,790 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:01:07,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:01:07,790 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:01:07,792 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:01:07,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-28 04:01:07,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:01:07,840 INFO L256 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-28 04:01:07,842 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:01:08,068 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 04:01:08,069 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:01:08,246 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 04:01:08,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:01:08,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494459638] [2024-11-28 04:01:08,247 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:01:08,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1473887771] [2024-11-28 04:01:08,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1473887771] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:01:08,247 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:01:08,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2024-11-28 04:01:08,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6453845] [2024-11-28 04:01:08,248 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:01:08,248 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 04:01:08,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:01:08,249 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 04:01:08,249 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:01:08,249 INFO L87 Difference]: Start difference. First operand 131 states and 154 transitions. Second operand has 11 states, 10 states have (on average 5.0) internal successors, (50), 11 states have internal predecessors, (50), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-28 04:01:08,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:01:08,626 INFO L93 Difference]: Finished difference Result 209 states and 247 transitions. [2024-11-28 04:01:08,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 04:01:08,627 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.0) internal successors, (50), 11 states have internal predecessors, (50), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 38 [2024-11-28 04:01:08,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:01:08,628 INFO L225 Difference]: With dead ends: 209 [2024-11-28 04:01:08,628 INFO L226 Difference]: Without dead ends: 145 [2024-11-28 04:01:08,628 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 64 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=228, Unknown=0, NotChecked=0, Total=306 [2024-11-28 04:01:08,629 INFO L435 NwaCegarLoop]: 18 mSDtfsCounter, 70 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:01:08,629 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 81 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:01:08,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2024-11-28 04:01:08,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 145. [2024-11-28 04:01:08,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 127 states have (on average 1.1496062992125984) internal successors, (146), 132 states have internal predecessors, (146), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-28 04:01:08,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 166 transitions. [2024-11-28 04:01:08,642 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 166 transitions. Word has length 38 [2024-11-28 04:01:08,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:01:08,642 INFO L471 AbstractCegarLoop]: Abstraction has 145 states and 166 transitions. [2024-11-28 04:01:08,642 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.0) internal successors, (50), 11 states have internal predecessors, (50), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-28 04:01:08,643 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 166 transitions. [2024-11-28 04:01:08,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-28 04:01:08,643 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:01:08,644 INFO L218 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:01:08,653 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-28 04:01:08,847 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:01:08,847 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-28 04:01:08,848 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:01:08,848 INFO L85 PathProgramCache]: Analyzing trace with hash -492530017, now seen corresponding path program 2 times [2024-11-28 04:01:08,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:01:08,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784829332] [2024-11-28 04:01:08,848 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:01:08,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:01:08,877 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:01:08,878 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:01:08,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1630635063] [2024-11-28 04:01:08,879 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:01:08,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:01:08,880 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:01:08,882 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:01:08,885 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-28 04:01:08,932 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:01:08,932 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:01:08,936 INFO L256 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-28 04:01:08,937 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:01:09,093 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-28 04:01:09,093 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:01:09,357 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-28 04:01:09,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:01:09,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784829332] [2024-11-28 04:01:09,358 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:01:09,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1630635063] [2024-11-28 04:01:09,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1630635063] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:01:09,358 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:01:09,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2024-11-28 04:01:09,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469146309] [2024-11-28 04:01:09,359 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:01:09,359 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 04:01:09,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:01:09,360 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 04:01:09,361 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:01:09,361 INFO L87 Difference]: Start difference. First operand 145 states and 166 transitions. Second operand has 10 states, 9 states have (on average 7.777777777777778) internal successors, (70), 10 states have internal predecessors, (70), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-28 04:01:09,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:01:09,846 INFO L93 Difference]: Finished difference Result 295 states and 349 transitions. [2024-11-28 04:01:09,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 04:01:09,847 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 7.777777777777778) internal successors, (70), 10 states have internal predecessors, (70), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 53 [2024-11-28 04:01:09,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:01:09,849 INFO L225 Difference]: With dead ends: 295 [2024-11-28 04:01:09,849 INFO L226 Difference]: Without dead ends: 284 [2024-11-28 04:01:09,850 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=80, Invalid=160, Unknown=0, NotChecked=0, Total=240 [2024-11-28 04:01:09,850 INFO L435 NwaCegarLoop]: 36 mSDtfsCounter, 163 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:01:09,850 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 165 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:01:09,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2024-11-28 04:01:09,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 278. [2024-11-28 04:01:09,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 253 states have (on average 1.1541501976284585) internal successors, (292), 257 states have internal predecessors, (292), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-28 04:01:09,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 328 transitions. [2024-11-28 04:01:09,879 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 328 transitions. Word has length 53 [2024-11-28 04:01:09,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:01:09,880 INFO L471 AbstractCegarLoop]: Abstraction has 278 states and 328 transitions. [2024-11-28 04:01:09,880 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 7.777777777777778) internal successors, (70), 10 states have internal predecessors, (70), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-28 04:01:09,880 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 328 transitions. [2024-11-28 04:01:09,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-28 04:01:09,881 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:01:09,882 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-28 04:01:09,891 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-28 04:01:10,085 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-28 04:01:10,086 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-28 04:01:10,086 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:01:10,087 INFO L85 PathProgramCache]: Analyzing trace with hash 609264371, now seen corresponding path program 1 times [2024-11-28 04:01:10,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:01:10,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264268563] [2024-11-28 04:01:10,087 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:01:10,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:01:10,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:01:10,195 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-28 04:01:10,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:01:10,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264268563] [2024-11-28 04:01:10,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [264268563] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:01:10,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1356686707] [2024-11-28 04:01:10,196 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:01:10,196 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:01:10,196 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:01:10,198 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:01:10,201 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-28 04:01:10,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:01:10,248 INFO L256 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:01:10,250 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:01:10,329 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-28 04:01:10,329 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:01:10,439 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-28 04:01:10,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1356686707] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:01:10,440 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:01:10,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2024-11-28 04:01:10,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309773800] [2024-11-28 04:01:10,440 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:01:10,441 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 04:01:10,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:01:10,441 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 04:01:10,441 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:01:10,441 INFO L87 Difference]: Start difference. First operand 278 states and 328 transitions. Second operand has 9 states, 8 states have (on average 12.125) internal successors, (97), 9 states have internal predecessors, (97), 8 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) [2024-11-28 04:01:10,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:01:10,653 INFO L93 Difference]: Finished difference Result 768 states and 969 transitions. [2024-11-28 04:01:10,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 04:01:10,654 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 12.125) internal successors, (97), 9 states have internal predecessors, (97), 8 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) Word has length 65 [2024-11-28 04:01:10,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:01:10,658 INFO L225 Difference]: With dead ends: 768 [2024-11-28 04:01:10,658 INFO L226 Difference]: Without dead ends: 766 [2024-11-28 04:01:10,659 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:01:10,660 INFO L435 NwaCegarLoop]: 27 mSDtfsCounter, 20 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:01:10,660 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 114 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:01:10,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 766 states. [2024-11-28 04:01:10,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 766 to 766. [2024-11-28 04:01:10,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 766 states, 708 states have (on average 1.1257062146892656) internal successors, (797), 711 states have internal predecessors, (797), 52 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-28 04:01:10,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 766 states to 766 states and 901 transitions. [2024-11-28 04:01:10,763 INFO L78 Accepts]: Start accepts. Automaton has 766 states and 901 transitions. Word has length 65 [2024-11-28 04:01:10,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:01:10,764 INFO L471 AbstractCegarLoop]: Abstraction has 766 states and 901 transitions. [2024-11-28 04:01:10,764 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 12.125) internal successors, (97), 9 states have internal predecessors, (97), 8 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) [2024-11-28 04:01:10,764 INFO L276 IsEmpty]: Start isEmpty. Operand 766 states and 901 transitions. [2024-11-28 04:01:10,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-28 04:01:10,765 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:01:10,766 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:01:10,775 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-28 04:01:10,966 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-28 04:01:10,966 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-28 04:01:10,967 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:01:10,967 INFO L85 PathProgramCache]: Analyzing trace with hash -2141835571, now seen corresponding path program 1 times [2024-11-28 04:01:10,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:01:10,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047794301] [2024-11-28 04:01:10,967 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:01:10,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:01:10,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:01:11,191 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 6 proven. 49 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-28 04:01:11,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:01:11,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047794301] [2024-11-28 04:01:11,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047794301] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:01:11,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1522528869] [2024-11-28 04:01:11,193 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:01:11,193 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:01:11,193 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:01:11,195 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:01:11,199 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-28 04:01:11,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:01:11,251 INFO L256 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-28 04:01:11,253 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:01:11,529 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 4 proven. 25 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-28 04:01:11,529 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:01:11,849 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-28 04:01:11,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1522528869] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:01:11,849 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:01:11,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9, 9] total 18 [2024-11-28 04:01:11,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823091858] [2024-11-28 04:01:11,850 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:01:11,850 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-28 04:01:11,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:01:11,851 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-28 04:01:11,851 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2024-11-28 04:01:11,852 INFO L87 Difference]: Start difference. First operand 766 states and 901 transitions. Second operand has 19 states, 18 states have (on average 5.444444444444445) internal successors, (98), 18 states have internal predecessors, (98), 8 states have call successors, (9), 1 states have call predecessors, (9), 3 states have return successors, (10), 8 states have call predecessors, (10), 8 states have call successors, (10) [2024-11-28 04:01:13,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:01:13,111 INFO L93 Difference]: Finished difference Result 778 states and 913 transitions. [2024-11-28 04:01:13,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2024-11-28 04:01:13,112 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 5.444444444444445) internal successors, (98), 18 states have internal predecessors, (98), 8 states have call successors, (9), 1 states have call predecessors, (9), 3 states have return successors, (10), 8 states have call predecessors, (10), 8 states have call successors, (10) Word has length 74 [2024-11-28 04:01:13,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:01:13,117 INFO L225 Difference]: With dead ends: 778 [2024-11-28 04:01:13,117 INFO L226 Difference]: Without dead ends: 777 [2024-11-28 04:01:13,119 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 130 SyntacticMatches, 7 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 748 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=675, Invalid=2187, Unknown=0, NotChecked=0, Total=2862 [2024-11-28 04:01:13,120 INFO L435 NwaCegarLoop]: 13 mSDtfsCounter, 168 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 353 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:01:13,120 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 142 Invalid, 368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 353 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 04:01:13,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 777 states. [2024-11-28 04:01:13,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 777 to 765. [2024-11-28 04:01:13,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 765 states, 708 states have (on average 1.0748587570621468) internal successors, (761), 710 states have internal predecessors, (761), 52 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-28 04:01:13,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 765 states to 765 states and 865 transitions. [2024-11-28 04:01:13,211 INFO L78 Accepts]: Start accepts. Automaton has 765 states and 865 transitions. Word has length 74 [2024-11-28 04:01:13,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:01:13,211 INFO L471 AbstractCegarLoop]: Abstraction has 765 states and 865 transitions. [2024-11-28 04:01:13,211 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 5.444444444444445) internal successors, (98), 18 states have internal predecessors, (98), 8 states have call successors, (9), 1 states have call predecessors, (9), 3 states have return successors, (10), 8 states have call predecessors, (10), 8 states have call successors, (10) [2024-11-28 04:01:13,211 INFO L276 IsEmpty]: Start isEmpty. Operand 765 states and 865 transitions. [2024-11-28 04:01:13,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-28 04:01:13,212 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:01:13,212 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:01:13,225 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-28 04:01:13,413 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-28 04:01:13,413 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-28 04:01:13,414 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:01:13,414 INFO L85 PathProgramCache]: Analyzing trace with hash -564151823, now seen corresponding path program 1 times [2024-11-28 04:01:13,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:01:13,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283644591] [2024-11-28 04:01:13,414 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:01:13,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:01:13,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:01:13,521 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 0 proven. 63 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-28 04:01:13,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:01:13,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283644591] [2024-11-28 04:01:13,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283644591] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:01:13,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [487829648] [2024-11-28 04:01:13,522 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:01:13,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:01:13,522 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:01:13,524 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:01:13,528 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-28 04:01:13,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:01:13,586 INFO L256 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 04:01:13,588 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:01:13,726 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 62 proven. 22 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-28 04:01:13,726 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:01:13,847 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 50 proven. 22 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-28 04:01:13,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [487829648] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:01:13,848 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:01:13,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 6, 6] total 10 [2024-11-28 04:01:13,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515639018] [2024-11-28 04:01:13,848 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:01:13,849 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 04:01:13,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:01:13,850 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 04:01:13,850 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:01:13,850 INFO L87 Difference]: Start difference. First operand 765 states and 865 transitions. Second operand has 10 states, 10 states have (on average 12.4) internal successors, (124), 10 states have internal predecessors, (124), 9 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 9 states have call predecessors, (11), 9 states have call successors, (11) [2024-11-28 04:01:14,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:01:14,407 INFO L93 Difference]: Finished difference Result 1422 states and 1606 transitions. [2024-11-28 04:01:14,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-28 04:01:14,408 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.4) internal successors, (124), 10 states have internal predecessors, (124), 9 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 9 states have call predecessors, (11), 9 states have call successors, (11) Word has length 87 [2024-11-28 04:01:14,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:01:14,415 INFO L225 Difference]: With dead ends: 1422 [2024-11-28 04:01:14,415 INFO L226 Difference]: Without dead ends: 1197 [2024-11-28 04:01:14,418 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 165 SyntacticMatches, 3 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=135, Invalid=417, Unknown=0, NotChecked=0, Total=552 [2024-11-28 04:01:14,420 INFO L435 NwaCegarLoop]: 35 mSDtfsCounter, 93 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 366 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:01:14,420 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 187 Invalid, 373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 366 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:01:14,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1197 states. [2024-11-28 04:01:14,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1197 to 924. [2024-11-28 04:01:14,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 924 states, 857 states have (on average 1.072345390898483) internal successors, (919), 859 states have internal predecessors, (919), 62 states have call successors, (62), 2 states have call predecessors, (62), 2 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-28 04:01:14,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 924 states to 924 states and 1043 transitions. [2024-11-28 04:01:14,522 INFO L78 Accepts]: Start accepts. Automaton has 924 states and 1043 transitions. Word has length 87 [2024-11-28 04:01:14,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:01:14,523 INFO L471 AbstractCegarLoop]: Abstraction has 924 states and 1043 transitions. [2024-11-28 04:01:14,523 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.4) internal successors, (124), 10 states have internal predecessors, (124), 9 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 9 states have call predecessors, (11), 9 states have call successors, (11) [2024-11-28 04:01:14,523 INFO L276 IsEmpty]: Start isEmpty. Operand 924 states and 1043 transitions. [2024-11-28 04:01:14,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-28 04:01:14,526 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:01:14,526 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:01:14,538 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-28 04:01:14,727 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:01:14,727 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-28 04:01:14,727 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:01:14,727 INFO L85 PathProgramCache]: Analyzing trace with hash -168473925, now seen corresponding path program 1 times [2024-11-28 04:01:14,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:01:14,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223351210] [2024-11-28 04:01:14,728 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:01:14,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:01:14,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:01:14,857 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-28 04:01:14,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:01:14,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223351210] [2024-11-28 04:01:14,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223351210] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:01:14,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [815489504] [2024-11-28 04:01:14,858 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:01:14,858 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:01:14,858 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:01:14,860 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:01:14,864 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-28 04:01:14,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:01:14,923 INFO L256 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 04:01:14,925 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:01:15,022 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-28 04:01:15,022 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:01:15,183 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-28 04:01:15,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [815489504] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:01:15,183 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:01:15,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-28 04:01:15,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124878342] [2024-11-28 04:01:15,184 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:01:15,184 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 04:01:15,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:01:15,185 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 04:01:15,185 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:01:15,186 INFO L87 Difference]: Start difference. First operand 924 states and 1043 transitions. Second operand has 11 states, 10 states have (on average 13.1) internal successors, (131), 11 states have internal predecessors, (131), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) [2024-11-28 04:01:15,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:01:15,475 INFO L93 Difference]: Finished difference Result 1494 states and 1690 transitions. [2024-11-28 04:01:15,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 04:01:15,476 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 13.1) internal successors, (131), 11 states have internal predecessors, (131), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) Word has length 87 [2024-11-28 04:01:15,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:01:15,482 INFO L225 Difference]: With dead ends: 1494 [2024-11-28 04:01:15,482 INFO L226 Difference]: Without dead ends: 1493 [2024-11-28 04:01:15,483 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:01:15,484 INFO L435 NwaCegarLoop]: 28 mSDtfsCounter, 74 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:01:15,484 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 185 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:01:15,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1493 states. [2024-11-28 04:01:15,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1493 to 1485. [2024-11-28 04:01:15,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1485 states, 1380 states have (on average 1.0710144927536231) internal successors, (1478), 1382 states have internal predecessors, (1478), 100 states have call successors, (100), 2 states have call predecessors, (100), 2 states have return successors, (100), 100 states have call predecessors, (100), 100 states have call successors, (100) [2024-11-28 04:01:15,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1485 states to 1485 states and 1678 transitions. [2024-11-28 04:01:15,627 INFO L78 Accepts]: Start accepts. Automaton has 1485 states and 1678 transitions. Word has length 87 [2024-11-28 04:01:15,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:01:15,627 INFO L471 AbstractCegarLoop]: Abstraction has 1485 states and 1678 transitions. [2024-11-28 04:01:15,628 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 13.1) internal successors, (131), 11 states have internal predecessors, (131), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) [2024-11-28 04:01:15,628 INFO L276 IsEmpty]: Start isEmpty. Operand 1485 states and 1678 transitions. [2024-11-28 04:01:15,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-28 04:01:15,630 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:01:15,630 INFO L218 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:01:15,640 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-28 04:01:15,830 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:01:15,831 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-28 04:01:15,831 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:01:15,831 INFO L85 PathProgramCache]: Analyzing trace with hash 1643264205, now seen corresponding path program 1 times [2024-11-28 04:01:15,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:01:15,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90808879] [2024-11-28 04:01:15,831 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:01:15,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:01:15,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:01:16,016 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 40 proven. 96 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-28 04:01:16,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:01:16,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90808879] [2024-11-28 04:01:16,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90808879] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:01:16,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [518863234] [2024-11-28 04:01:16,016 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:01:16,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:01:16,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:01:16,019 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:01:16,023 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-28 04:01:16,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:01:16,084 INFO L256 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 04:01:16,086 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:01:16,292 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 51 proven. 85 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-28 04:01:16,293 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:01:16,466 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 51 proven. 85 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-28 04:01:16,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [518863234] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:01:16,466 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:01:16,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 12 [2024-11-28 04:01:16,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779984857] [2024-11-28 04:01:16,467 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:01:16,467 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 04:01:16,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:01:16,468 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 04:01:16,468 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-11-28 04:01:16,468 INFO L87 Difference]: Start difference. First operand 1485 states and 1678 transitions. Second operand has 12 states, 12 states have (on average 11.333333333333334) internal successors, (136), 12 states have internal predecessors, (136), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) [2024-11-28 04:01:17,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:01:17,011 INFO L93 Difference]: Finished difference Result 3278 states and 3701 transitions. [2024-11-28 04:01:17,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:01:17,016 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.333333333333334) internal successors, (136), 12 states have internal predecessors, (136), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) Word has length 110 [2024-11-28 04:01:17,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:01:17,025 INFO L225 Difference]: With dead ends: 3278 [2024-11-28 04:01:17,025 INFO L226 Difference]: Without dead ends: 2431 [2024-11-28 04:01:17,028 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 211 SyntacticMatches, 5 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:01:17,029 INFO L435 NwaCegarLoop]: 55 mSDtfsCounter, 29 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 471 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:01:17,030 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 300 Invalid, 474 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 471 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:01:17,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2431 states. [2024-11-28 04:01:17,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2431 to 1763. [2024-11-28 04:01:17,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1763 states, 1640 states have (on average 1.0634146341463415) internal successors, (1744), 1642 states have internal predecessors, (1744), 118 states have call successors, (118), 2 states have call predecessors, (118), 2 states have return successors, (118), 118 states have call predecessors, (118), 118 states have call successors, (118) [2024-11-28 04:01:17,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1763 states to 1763 states and 1980 transitions. [2024-11-28 04:01:17,216 INFO L78 Accepts]: Start accepts. Automaton has 1763 states and 1980 transitions. Word has length 110 [2024-11-28 04:01:17,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:01:17,217 INFO L471 AbstractCegarLoop]: Abstraction has 1763 states and 1980 transitions. [2024-11-28 04:01:17,217 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.333333333333334) internal successors, (136), 12 states have internal predecessors, (136), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) [2024-11-28 04:01:17,217 INFO L276 IsEmpty]: Start isEmpty. Operand 1763 states and 1980 transitions. [2024-11-28 04:01:17,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-28 04:01:17,226 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:01:17,226 INFO L218 NwaCegarLoop]: trace histogram [7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:01:17,238 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-28 04:01:17,427 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-11-28 04:01:17,427 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-28 04:01:17,428 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:01:17,428 INFO L85 PathProgramCache]: Analyzing trace with hash 1133439135, now seen corresponding path program 2 times [2024-11-28 04:01:17,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:01:17,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421947019] [2024-11-28 04:01:17,428 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:01:17,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:01:17,467 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:01:17,470 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:01:17,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1730820271] [2024-11-28 04:01:17,473 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:01:17,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:01:17,474 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:01:17,476 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:01:17,480 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-28 04:01:17,552 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:01:17,553 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:01:17,554 INFO L256 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-28 04:01:17,558 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:01:17,949 INFO L134 CoverageAnalysis]: Checked inductivity of 269 backedges. 0 proven. 168 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2024-11-28 04:01:17,950 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:01:22,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:01:22,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421947019] [2024-11-28 04:01:22,474 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:01:22,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1730820271] [2024-11-28 04:01:22,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1730820271] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:01:22,474 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:01:22,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-28 04:01:22,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660040655] [2024-11-28 04:01:22,474 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:01:22,475 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:01:22,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:01:22,475 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:01:22,475 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=92, Unknown=1, NotChecked=0, Total=132 [2024-11-28 04:01:22,476 INFO L87 Difference]: Start difference. First operand 1763 states and 1980 transitions. Second operand has 8 states, 7 states have (on average 10.285714285714286) internal successors, (72), 8 states have internal predecessors, (72), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-28 04:01:22,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:01:22,865 INFO L93 Difference]: Finished difference Result 1976 states and 2215 transitions. [2024-11-28 04:01:22,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 04:01:22,866 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.285714285714286) internal successors, (72), 8 states have internal predecessors, (72), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 129 [2024-11-28 04:01:22,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:01:22,874 INFO L225 Difference]: With dead ends: 1976 [2024-11-28 04:01:22,874 INFO L226 Difference]: Without dead ends: 1975 [2024-11-28 04:01:22,874 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=39, Invalid=92, Unknown=1, NotChecked=0, Total=132 [2024-11-28 04:01:22,876 INFO L435 NwaCegarLoop]: 45 mSDtfsCounter, 19 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:01:22,877 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 193 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:01:22,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1975 states. [2024-11-28 04:01:23,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1975 to 1793. [2024-11-28 04:01:23,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1793 states, 1668 states have (on average 1.0623501199040768) internal successors, (1772), 1670 states have internal predecessors, (1772), 120 states have call successors, (120), 2 states have call predecessors, (120), 2 states have return successors, (120), 120 states have call predecessors, (120), 120 states have call successors, (120) [2024-11-28 04:01:23,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1793 states to 1793 states and 2012 transitions. [2024-11-28 04:01:23,036 INFO L78 Accepts]: Start accepts. Automaton has 1793 states and 2012 transitions. Word has length 129 [2024-11-28 04:01:23,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:01:23,037 INFO L471 AbstractCegarLoop]: Abstraction has 1793 states and 2012 transitions. [2024-11-28 04:01:23,037 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.285714285714286) internal successors, (72), 8 states have internal predecessors, (72), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-28 04:01:23,037 INFO L276 IsEmpty]: Start isEmpty. Operand 1793 states and 2012 transitions. [2024-11-28 04:01:23,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-28 04:01:23,041 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:01:23,041 INFO L218 NwaCegarLoop]: trace histogram [7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:01:23,052 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-11-28 04:01:23,245 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:01:23,245 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-28 04:01:23,246 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:01:23,246 INFO L85 PathProgramCache]: Analyzing trace with hash -1942082239, now seen corresponding path program 3 times [2024-11-28 04:01:23,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:01:23,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771491480] [2024-11-28 04:01:23,246 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:01:23,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:01:23,278 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2024-11-28 04:01:23,278 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:01:23,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [220240330] [2024-11-28 04:01:23,279 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:01:23,281 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:01:23,281 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:01:23,283 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:01:23,300 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-28 04:01:23,381 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-11-28 04:01:23,381 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:01:23,383 INFO L256 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-28 04:01:23,385 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:01:23,670 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 0 proven. 179 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2024-11-28 04:01:23,671 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:01:23,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:01:23,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771491480] [2024-11-28 04:01:23,892 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:01:23,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [220240330] [2024-11-28 04:01:23,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [220240330] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:01:23,892 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:01:23,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-28 04:01:23,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047107546] [2024-11-28 04:01:23,892 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:01:23,893 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:01:23,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:01:23,893 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:01:23,893 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:01:23,894 INFO L87 Difference]: Start difference. First operand 1793 states and 2012 transitions. Second operand has 8 states, 7 states have (on average 11.0) internal successors, (77), 8 states have internal predecessors, (77), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-28 04:01:24,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:01:24,501 INFO L93 Difference]: Finished difference Result 2776 states and 3111 transitions. [2024-11-28 04:01:24,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-28 04:01:24,502 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 11.0) internal successors, (77), 8 states have internal predecessors, (77), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 129 [2024-11-28 04:01:24,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:01:24,511 INFO L225 Difference]: With dead ends: 2776 [2024-11-28 04:01:24,511 INFO L226 Difference]: Without dead ends: 1965 [2024-11-28 04:01:24,514 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=108, Invalid=312, Unknown=0, NotChecked=0, Total=420 [2024-11-28 04:01:24,514 INFO L435 NwaCegarLoop]: 37 mSDtfsCounter, 73 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 304 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:01:24,515 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 182 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 304 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:01:24,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1965 states. [2024-11-28 04:01:24,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1965 to 1793. [2024-11-28 04:01:24,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1793 states, 1668 states have (on average 1.0605515587529977) internal successors, (1769), 1670 states have internal predecessors, (1769), 120 states have call successors, (120), 2 states have call predecessors, (120), 2 states have return successors, (120), 120 states have call predecessors, (120), 120 states have call successors, (120) [2024-11-28 04:01:24,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1793 states to 1793 states and 2009 transitions. [2024-11-28 04:01:24,682 INFO L78 Accepts]: Start accepts. Automaton has 1793 states and 2009 transitions. Word has length 129 [2024-11-28 04:01:24,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:01:24,684 INFO L471 AbstractCegarLoop]: Abstraction has 1793 states and 2009 transitions. [2024-11-28 04:01:24,685 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 11.0) internal successors, (77), 8 states have internal predecessors, (77), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-28 04:01:24,685 INFO L276 IsEmpty]: Start isEmpty. Operand 1793 states and 2009 transitions. [2024-11-28 04:01:24,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-28 04:01:24,688 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:01:24,688 INFO L218 NwaCegarLoop]: trace histogram [7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:01:24,697 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2024-11-28 04:01:24,892 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:01:24,893 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-28 04:01:24,893 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:01:24,893 INFO L85 PathProgramCache]: Analyzing trace with hash 257171615, now seen corresponding path program 3 times [2024-11-28 04:01:24,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:01:24,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327904661] [2024-11-28 04:01:24,894 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:01:24,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:01:24,932 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2024-11-28 04:01:24,933 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:01:24,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [681132246] [2024-11-28 04:01:24,935 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:01:24,935 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:01:24,935 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:01:24,939 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:01:24,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-28 04:01:24,999 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-28 04:01:24,999 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:01:25,002 INFO L256 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 04:01:25,005 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:01:25,061 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 91 proven. 4 refuted. 0 times theorem prover too weak. 206 trivial. 0 not checked. [2024-11-28 04:01:25,061 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:01:25,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:01:25,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327904661] [2024-11-28 04:01:25,242 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:01:25,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [681132246] [2024-11-28 04:01:25,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [681132246] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:01:25,242 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:01:25,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2024-11-28 04:01:25,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879487515] [2024-11-28 04:01:25,242 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:01:25,243 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:01:25,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:01:25,243 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:01:25,243 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:01:25,243 INFO L87 Difference]: Start difference. First operand 1793 states and 2009 transitions. Second operand has 5 states, 4 states have (on average 10.5) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-28 04:01:25,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:01:25,433 INFO L93 Difference]: Finished difference Result 2329 states and 2608 transitions. [2024-11-28 04:01:25,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:01:25,434 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 10.5) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 129 [2024-11-28 04:01:25,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:01:25,439 INFO L225 Difference]: With dead ends: 2329 [2024-11-28 04:01:25,439 INFO L226 Difference]: Without dead ends: 1425 [2024-11-28 04:01:25,441 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:01:25,441 INFO L435 NwaCegarLoop]: 29 mSDtfsCounter, 14 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:01:25,442 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 93 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:01:25,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1425 states. [2024-11-28 04:01:25,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1425 to 1424. [2024-11-28 04:01:25,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1424 states, 1323 states have (on average 1.055177626606198) internal successors, (1396), 1325 states have internal predecessors, (1396), 96 states have call successors, (96), 2 states have call predecessors, (96), 2 states have return successors, (96), 96 states have call predecessors, (96), 96 states have call successors, (96) [2024-11-28 04:01:25,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1424 states to 1424 states and 1588 transitions. [2024-11-28 04:01:25,549 INFO L78 Accepts]: Start accepts. Automaton has 1424 states and 1588 transitions. Word has length 129 [2024-11-28 04:01:25,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:01:25,549 INFO L471 AbstractCegarLoop]: Abstraction has 1424 states and 1588 transitions. [2024-11-28 04:01:25,549 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 10.5) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-28 04:01:25,550 INFO L276 IsEmpty]: Start isEmpty. Operand 1424 states and 1588 transitions. [2024-11-28 04:01:25,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-28 04:01:25,552 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:01:25,552 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:01:25,561 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2024-11-28 04:01:25,752 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:01:25,753 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-28 04:01:25,754 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:01:25,754 INFO L85 PathProgramCache]: Analyzing trace with hash 1775991923, now seen corresponding path program 2 times [2024-11-28 04:01:25,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:01:25,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249586952] [2024-11-28 04:01:25,754 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:01:25,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:01:25,783 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:01:25,783 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:01:25,985 INFO L134 CoverageAnalysis]: Checked inductivity of 373 backedges. 0 proven. 285 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-11-28 04:01:25,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:01:25,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249586952] [2024-11-28 04:01:25,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249586952] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:01:25,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1874890054] [2024-11-28 04:01:25,985 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:01:25,986 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:01:25,986 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:01:25,988 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:01:25,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-28 04:01:26,061 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:01:26,061 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:01:26,062 INFO L256 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 04:01:26,065 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:01:26,248 INFO L134 CoverageAnalysis]: Checked inductivity of 373 backedges. 0 proven. 285 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-11-28 04:01:26,249 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:01:26,568 INFO L134 CoverageAnalysis]: Checked inductivity of 373 backedges. 0 proven. 285 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-11-28 04:01:26,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1874890054] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:01:26,568 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:01:26,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 16 [2024-11-28 04:01:26,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130144449] [2024-11-28 04:01:26,569 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:01:26,569 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-28 04:01:26,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:01:26,571 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-28 04:01:26,571 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=136, Unknown=0, NotChecked=0, Total=272 [2024-11-28 04:01:26,571 INFO L87 Difference]: Start difference. First operand 1424 states and 1588 transitions. Second operand has 17 states, 16 states have (on average 13.0625) internal successors, (209), 17 states have internal predecessors, (209), 16 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 16 states have call predecessors, (17), 16 states have call successors, (17) [2024-11-28 04:01:27,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:01:27,008 INFO L93 Difference]: Finished difference Result 2625 states and 3028 transitions. [2024-11-28 04:01:27,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-28 04:01:27,008 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 13.0625) internal successors, (209), 17 states have internal predecessors, (209), 16 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 16 states have call predecessors, (17), 16 states have call successors, (17) Word has length 141 [2024-11-28 04:01:27,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:01:27,016 INFO L225 Difference]: With dead ends: 2625 [2024-11-28 04:01:27,016 INFO L226 Difference]: Without dead ends: 2624 [2024-11-28 04:01:27,018 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 288 GetRequests, 273 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=136, Unknown=0, NotChecked=0, Total=272 [2024-11-28 04:01:27,018 INFO L435 NwaCegarLoop]: 27 mSDtfsCounter, 17 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:01:27,018 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 145 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:01:27,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2624 states. [2024-11-28 04:01:27,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2624 to 2624. [2024-11-28 04:01:27,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2624 states, 2443 states have (on average 1.0626279164961114) internal successors, (2596), 2445 states have internal predecessors, (2596), 176 states have call successors, (176), 2 states have call predecessors, (176), 2 states have return successors, (176), 176 states have call predecessors, (176), 176 states have call successors, (176) [2024-11-28 04:01:27,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2624 states to 2624 states and 2948 transitions. [2024-11-28 04:01:27,236 INFO L78 Accepts]: Start accepts. Automaton has 2624 states and 2948 transitions. Word has length 141 [2024-11-28 04:01:27,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:01:27,237 INFO L471 AbstractCegarLoop]: Abstraction has 2624 states and 2948 transitions. [2024-11-28 04:01:27,238 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 13.0625) internal successors, (209), 17 states have internal predecessors, (209), 16 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 16 states have call predecessors, (17), 16 states have call successors, (17) [2024-11-28 04:01:27,238 INFO L276 IsEmpty]: Start isEmpty. Operand 2624 states and 2948 transitions. [2024-11-28 04:01:27,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-28 04:01:27,240 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:01:27,240 INFO L218 NwaCegarLoop]: trace histogram [8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:01:27,250 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2024-11-28 04:01:27,444 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:01:27,445 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-28 04:01:27,445 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:01:27,445 INFO L85 PathProgramCache]: Analyzing trace with hash 1539875681, now seen corresponding path program 4 times [2024-11-28 04:01:27,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:01:27,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233256492] [2024-11-28 04:01:27,446 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 04:01:27,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:01:27,479 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 04:01:27,479 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:01:27,839 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 59 proven. 230 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-11-28 04:01:27,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:01:27,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233256492] [2024-11-28 04:01:27,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233256492] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:01:27,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [453930890] [2024-11-28 04:01:27,840 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 04:01:27,840 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:01:27,840 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:01:27,842 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:01:27,845 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-28 04:01:27,913 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 04:01:27,913 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:01:27,914 INFO L256 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-28 04:01:27,916 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:01:28,226 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 96 proven. 193 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-11-28 04:01:28,227 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:01:28,456 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 96 proven. 193 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-11-28 04:01:28,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [453930890] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:01:28,456 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:01:28,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 15 [2024-11-28 04:01:28,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893685962] [2024-11-28 04:01:28,456 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:01:28,457 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-28 04:01:28,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:01:28,458 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-28 04:01:28,458 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2024-11-28 04:01:28,458 INFO L87 Difference]: Start difference. First operand 2624 states and 2948 transitions. Second operand has 15 states, 15 states have (on average 11.733333333333333) internal successors, (176), 15 states have internal predecessors, (176), 13 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 13 states have call predecessors, (14), 13 states have call successors, (14) [2024-11-28 04:01:29,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:01:29,125 INFO L93 Difference]: Finished difference Result 5773 states and 6498 transitions. [2024-11-28 04:01:29,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-28 04:01:29,126 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 11.733333333333333) internal successors, (176), 15 states have internal predecessors, (176), 13 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 13 states have call predecessors, (14), 13 states have call successors, (14) Word has length 148 [2024-11-28 04:01:29,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:01:29,138 INFO L225 Difference]: With dead ends: 5773 [2024-11-28 04:01:29,138 INFO L226 Difference]: Without dead ends: 4196 [2024-11-28 04:01:29,142 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 284 SyntacticMatches, 7 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=135, Invalid=417, Unknown=0, NotChecked=0, Total=552 [2024-11-28 04:01:29,142 INFO L435 NwaCegarLoop]: 68 mSDtfsCounter, 31 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:01:29,143 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 295 Invalid, 490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 485 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:01:29,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4196 states. [2024-11-28 04:01:29,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4196 to 2941. [2024-11-28 04:01:29,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2941 states, 2739 states have (on average 1.0580503833515882) internal successors, (2898), 2741 states have internal predecessors, (2898), 197 states have call successors, (197), 2 states have call predecessors, (197), 2 states have return successors, (197), 197 states have call predecessors, (197), 197 states have call successors, (197) [2024-11-28 04:01:29,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2941 states to 2941 states and 3292 transitions. [2024-11-28 04:01:29,449 INFO L78 Accepts]: Start accepts. Automaton has 2941 states and 3292 transitions. Word has length 148 [2024-11-28 04:01:29,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:01:29,449 INFO L471 AbstractCegarLoop]: Abstraction has 2941 states and 3292 transitions. [2024-11-28 04:01:29,450 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 11.733333333333333) internal successors, (176), 15 states have internal predecessors, (176), 13 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 13 states have call predecessors, (14), 13 states have call successors, (14) [2024-11-28 04:01:29,450 INFO L276 IsEmpty]: Start isEmpty. Operand 2941 states and 3292 transitions. [2024-11-28 04:01:29,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-28 04:01:29,453 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:01:29,453 INFO L218 NwaCegarLoop]: trace histogram [9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:01:29,462 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2024-11-28 04:01:29,657 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-28 04:01:29,658 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-28 04:01:29,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:01:29,658 INFO L85 PathProgramCache]: Analyzing trace with hash -900977269, now seen corresponding path program 5 times [2024-11-28 04:01:29,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:01:29,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177443244] [2024-11-28 04:01:29,659 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-28 04:01:29,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:01:29,717 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2024-11-28 04:01:29,717 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:01:29,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1649188859] [2024-11-28 04:01:29,719 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-28 04:01:29,719 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:01:29,719 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:01:29,721 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:01:29,725 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-28 04:01:29,818 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2024-11-28 04:01:29,818 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:01:29,819 INFO L256 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 37 conjuncts are in the unsatisfiable core [2024-11-28 04:01:29,823 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:01:30,685 INFO L134 CoverageAnalysis]: Checked inductivity of 504 backedges. 15 proven. 394 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2024-11-28 04:01:30,685 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:01:30,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:01:30,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177443244] [2024-11-28 04:01:30,939 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:01:30,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1649188859] [2024-11-28 04:01:30,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1649188859] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:01:30,939 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:01:30,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2024-11-28 04:01:30,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141561962] [2024-11-28 04:01:30,939 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:01:30,940 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-28 04:01:30,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:01:30,940 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-28 04:01:30,940 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=474, Unknown=0, NotChecked=0, Total=552 [2024-11-28 04:01:30,941 INFO L87 Difference]: Start difference. First operand 2941 states and 3292 transitions. Second operand has 21 states, 20 states have (on average 6.3) internal successors, (126), 21 states have internal predecessors, (126), 9 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2024-11-28 04:01:32,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:01:32,225 INFO L93 Difference]: Finished difference Result 4969 states and 5567 transitions. [2024-11-28 04:01:32,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-28 04:01:32,226 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 6.3) internal successors, (126), 21 states have internal predecessors, (126), 9 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) Word has length 167 [2024-11-28 04:01:32,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:01:32,237 INFO L225 Difference]: With dead ends: 4969 [2024-11-28 04:01:32,237 INFO L226 Difference]: Without dead ends: 3228 [2024-11-28 04:01:32,240 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=106, Invalid=596, Unknown=0, NotChecked=0, Total=702 [2024-11-28 04:01:32,244 INFO L435 NwaCegarLoop]: 46 mSDtfsCounter, 45 mSDsluCounter, 391 mSDsCounter, 0 mSdLazyCounter, 1792 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 437 SdHoareTripleChecker+Invalid, 1796 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1792 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:01:32,245 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 437 Invalid, 1796 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1792 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 04:01:32,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3228 states. [2024-11-28 04:01:32,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3228 to 3001. [2024-11-28 04:01:32,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3001 states, 2795 states have (on average 1.0568872987477638) internal successors, (2954), 2797 states have internal predecessors, (2954), 201 states have call successors, (201), 2 states have call predecessors, (201), 2 states have return successors, (201), 201 states have call predecessors, (201), 201 states have call successors, (201) [2024-11-28 04:01:32,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3001 states to 3001 states and 3356 transitions. [2024-11-28 04:01:32,488 INFO L78 Accepts]: Start accepts. Automaton has 3001 states and 3356 transitions. Word has length 167 [2024-11-28 04:01:32,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:01:32,489 INFO L471 AbstractCegarLoop]: Abstraction has 3001 states and 3356 transitions. [2024-11-28 04:01:32,489 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 6.3) internal successors, (126), 21 states have internal predecessors, (126), 9 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2024-11-28 04:01:32,490 INFO L276 IsEmpty]: Start isEmpty. Operand 3001 states and 3356 transitions. [2024-11-28 04:01:32,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-28 04:01:32,493 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:01:32,494 INFO L218 NwaCegarLoop]: trace histogram [9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:01:32,504 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2024-11-28 04:01:32,694 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-28 04:01:32,695 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-28 04:01:32,695 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:01:32,695 INFO L85 PathProgramCache]: Analyzing trace with hash -1097013897, now seen corresponding path program 6 times [2024-11-28 04:01:32,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:01:32,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016462203] [2024-11-28 04:01:32,695 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-28 04:01:32,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:01:32,758 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) [2024-11-28 04:01:32,758 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:01:32,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1607615075] [2024-11-28 04:01:32,760 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-28 04:01:32,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:01:32,760 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:01:32,765 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:01:32,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-11-28 04:01:32,846 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2024-11-28 04:01:32,846 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:01:32,848 INFO L256 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-28 04:01:32,850 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:01:33,301 INFO L134 CoverageAnalysis]: Checked inductivity of 488 backedges. 0 proven. 339 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2024-11-28 04:01:33,302 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:01:33,801 INFO L134 CoverageAnalysis]: Checked inductivity of 488 backedges. 0 proven. 339 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2024-11-28 04:01:33,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:01:33,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016462203] [2024-11-28 04:01:33,801 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:01:33,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1607615075] [2024-11-28 04:01:33,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1607615075] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:01:33,801 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:01:33,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2024-11-28 04:01:33,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770162289] [2024-11-28 04:01:33,801 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:01:33,803 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-28 04:01:33,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:01:33,803 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-28 04:01:33,804 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2024-11-28 04:01:33,804 INFO L87 Difference]: Start difference. First operand 3001 states and 3356 transitions. Second operand has 16 states, 15 states have (on average 12.266666666666667) internal successors, (184), 16 states have internal predecessors, (184), 11 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 11 states have call predecessors, (12), 11 states have call successors, (12) [2024-11-28 04:01:35,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:01:35,458 INFO L93 Difference]: Finished difference Result 5041 states and 5646 transitions. [2024-11-28 04:01:35,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-28 04:01:35,459 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 12.266666666666667) internal successors, (184), 16 states have internal predecessors, (184), 11 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 11 states have call predecessors, (12), 11 states have call successors, (12) Word has length 167 [2024-11-28 04:01:35,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:01:35,473 INFO L225 Difference]: With dead ends: 5041 [2024-11-28 04:01:35,473 INFO L226 Difference]: Without dead ends: 5040 [2024-11-28 04:01:35,475 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 348 GetRequests, 318 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2024-11-28 04:01:35,476 INFO L435 NwaCegarLoop]: 61 mSDtfsCounter, 204 mSDsluCounter, 460 mSDsCounter, 0 mSdLazyCounter, 968 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 521 SdHoareTripleChecker+Invalid, 1000 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 968 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 04:01:35,476 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 521 Invalid, 1000 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 968 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 04:01:35,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5040 states. [2024-11-28 04:01:35,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5040 to 5034. [2024-11-28 04:01:35,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5034 states, 4693 states have (on average 1.0551885787342852) internal successors, (4952), 4695 states have internal predecessors, (4952), 336 states have call successors, (336), 2 states have call predecessors, (336), 2 states have return successors, (336), 336 states have call predecessors, (336), 336 states have call successors, (336) [2024-11-28 04:01:35,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5034 states to 5034 states and 5624 transitions. [2024-11-28 04:01:35,858 INFO L78 Accepts]: Start accepts. Automaton has 5034 states and 5624 transitions. Word has length 167 [2024-11-28 04:01:35,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:01:35,858 INFO L471 AbstractCegarLoop]: Abstraction has 5034 states and 5624 transitions. [2024-11-28 04:01:35,858 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 12.266666666666667) internal successors, (184), 16 states have internal predecessors, (184), 11 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 11 states have call predecessors, (12), 11 states have call successors, (12) [2024-11-28 04:01:35,859 INFO L276 IsEmpty]: Start isEmpty. Operand 5034 states and 5624 transitions. [2024-11-28 04:01:35,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2024-11-28 04:01:35,862 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:01:35,862 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:01:35,871 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2024-11-28 04:01:36,066 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-28 04:01:36,066 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-28 04:01:36,067 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:01:36,067 INFO L85 PathProgramCache]: Analyzing trace with hash -932248333, now seen corresponding path program 2 times [2024-11-28 04:01:36,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:01:36,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902439366] [2024-11-28 04:01:36,067 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:01:36,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:01:36,095 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:01:36,095 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:01:36,407 INFO L134 CoverageAnalysis]: Checked inductivity of 672 backedges. 0 proven. 524 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-28 04:01:36,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:01:36,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902439366] [2024-11-28 04:01:36,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902439366] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:01:36,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1076017516] [2024-11-28 04:01:36,408 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:01:36,408 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:01:36,408 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:01:36,410 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:01:36,414 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-11-28 04:01:36,493 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:01:36,493 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:01:36,495 INFO L256 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-28 04:01:36,498 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:01:36,717 INFO L134 CoverageAnalysis]: Checked inductivity of 672 backedges. 0 proven. 524 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-28 04:01:36,717 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:01:37,113 INFO L134 CoverageAnalysis]: Checked inductivity of 672 backedges. 0 proven. 524 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-28 04:01:37,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1076017516] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:01:37,113 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:01:37,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 20 [2024-11-28 04:01:37,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413300740] [2024-11-28 04:01:37,114 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:01:37,114 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-28 04:01:37,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:01:37,115 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-28 04:01:37,116 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2024-11-28 04:01:37,117 INFO L87 Difference]: Start difference. First operand 5034 states and 5624 transitions. Second operand has 21 states, 20 states have (on average 13.55) internal successors, (271), 21 states have internal predecessors, (271), 20 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 20 states have call predecessors, (21), 20 states have call successors, (21) [2024-11-28 04:01:37,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:01:37,918 INFO L93 Difference]: Finished difference Result 8159 states and 9144 transitions. [2024-11-28 04:01:37,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-28 04:01:37,918 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 13.55) internal successors, (271), 21 states have internal predecessors, (271), 20 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 20 states have call predecessors, (21), 20 states have call successors, (21) Word has length 182 [2024-11-28 04:01:37,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:01:37,940 INFO L225 Difference]: With dead ends: 8159 [2024-11-28 04:01:37,940 INFO L226 Difference]: Without dead ends: 8158 [2024-11-28 04:01:37,943 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 372 GetRequests, 353 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2024-11-28 04:01:37,943 INFO L435 NwaCegarLoop]: 28 mSDtfsCounter, 290 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 317 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:01:37,943 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [290 Valid, 317 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:01:37,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8158 states. [2024-11-28 04:01:38,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8158 to 8140. [2024-11-28 04:01:38,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8140 states, 7591 states have (on average 1.0557238835463048) internal successors, (8014), 7593 states have internal predecessors, (8014), 544 states have call successors, (544), 2 states have call predecessors, (544), 2 states have return successors, (544), 544 states have call predecessors, (544), 544 states have call successors, (544) [2024-11-28 04:01:38,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8140 states to 8140 states and 9102 transitions. [2024-11-28 04:01:38,477 INFO L78 Accepts]: Start accepts. Automaton has 8140 states and 9102 transitions. Word has length 182 [2024-11-28 04:01:38,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:01:38,478 INFO L471 AbstractCegarLoop]: Abstraction has 8140 states and 9102 transitions. [2024-11-28 04:01:38,478 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 13.55) internal successors, (271), 21 states have internal predecessors, (271), 20 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 20 states have call predecessors, (21), 20 states have call successors, (21) [2024-11-28 04:01:38,478 INFO L276 IsEmpty]: Start isEmpty. Operand 8140 states and 9102 transitions. [2024-11-28 04:01:38,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2024-11-28 04:01:38,483 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:01:38,483 INFO L218 NwaCegarLoop]: trace histogram [10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:01:38,494 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2024-11-28 04:01:38,687 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-28 04:01:38,687 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-28 04:01:38,688 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:01:38,688 INFO L85 PathProgramCache]: Analyzing trace with hash -165296435, now seen corresponding path program 7 times [2024-11-28 04:01:38,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:01:38,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666235615] [2024-11-28 04:01:38,688 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-28 04:01:38,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:01:38,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:01:39,097 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 119 proven. 383 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-28 04:01:39,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:01:39,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666235615] [2024-11-28 04:01:39,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666235615] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:01:39,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [103114249] [2024-11-28 04:01:39,098 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-28 04:01:39,098 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:01:39,098 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:01:39,100 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:01:39,104 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-11-28 04:01:39,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:01:39,180 INFO L256 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-28 04:01:39,185 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:01:39,606 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 156 proven. 346 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-28 04:01:39,606 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:01:39,966 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 156 proven. 346 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-28 04:01:39,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [103114249] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:01:39,966 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:01:39,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 18 [2024-11-28 04:01:39,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168154144] [2024-11-28 04:01:39,966 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:01:39,967 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-28 04:01:39,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:01:39,968 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-28 04:01:39,968 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=225, Unknown=0, NotChecked=0, Total=306 [2024-11-28 04:01:39,968 INFO L87 Difference]: Start difference. First operand 8140 states and 9102 transitions. Second operand has 18 states, 18 states have (on average 12.222222222222221) internal successors, (220), 18 states have internal predecessors, (220), 16 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 16 states have call predecessors, (17), 16 states have call successors, (17) [2024-11-28 04:01:41,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:01:41,310 INFO L93 Difference]: Finished difference Result 18027 states and 20204 transitions. [2024-11-28 04:01:41,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 04:01:41,311 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 12.222222222222221) internal successors, (220), 18 states have internal predecessors, (220), 16 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 16 states have call predecessors, (17), 16 states have call successors, (17) Word has length 186 [2024-11-28 04:01:41,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:01:41,348 INFO L225 Difference]: With dead ends: 18027 [2024-11-28 04:01:41,349 INFO L226 Difference]: Without dead ends: 13078 [2024-11-28 04:01:41,357 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 386 GetRequests, 357 SyntacticMatches, 9 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=119, Invalid=343, Unknown=0, NotChecked=0, Total=462 [2024-11-28 04:01:41,358 INFO L435 NwaCegarLoop]: 79 mSDtfsCounter, 29 mSDsluCounter, 375 mSDsCounter, 0 mSdLazyCounter, 772 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 454 SdHoareTripleChecker+Invalid, 774 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 772 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:01:41,358 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 454 Invalid, 774 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 772 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 04:01:41,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13078 states. [2024-11-28 04:01:42,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13078 to 9468. [2024-11-28 04:01:42,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9468 states, 8831 states have (on average 1.0492582946438682) internal successors, (9266), 8833 states have internal predecessors, (9266), 632 states have call successors, (632), 2 states have call predecessors, (632), 2 states have return successors, (632), 632 states have call predecessors, (632), 632 states have call successors, (632) [2024-11-28 04:01:42,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9468 states to 9468 states and 10530 transitions. [2024-11-28 04:01:42,202 INFO L78 Accepts]: Start accepts. Automaton has 9468 states and 10530 transitions. Word has length 186 [2024-11-28 04:01:42,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:01:42,203 INFO L471 AbstractCegarLoop]: Abstraction has 9468 states and 10530 transitions. [2024-11-28 04:01:42,203 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 12.222222222222221) internal successors, (220), 18 states have internal predecessors, (220), 16 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 16 states have call predecessors, (17), 16 states have call successors, (17) [2024-11-28 04:01:42,204 INFO L276 IsEmpty]: Start isEmpty. Operand 9468 states and 10530 transitions. [2024-11-28 04:01:42,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2024-11-28 04:01:42,207 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:01:42,207 INFO L218 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 8, 8, 8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:01:42,217 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2024-11-28 04:01:42,411 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:01:42,411 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-28 04:01:42,413 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:01:42,413 INFO L85 PathProgramCache]: Analyzing trace with hash -1453024609, now seen corresponding path program 8 times [2024-11-28 04:01:42,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:01:42,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237693353] [2024-11-28 04:01:42,414 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:01:42,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:01:42,476 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:01:42,476 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:01:42,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [507503569] [2024-11-28 04:01:42,477 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:01:42,477 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:01:42,477 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:01:42,481 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:01:42,483 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-11-28 04:01:42,578 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:01:42,578 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:01:42,580 INFO L256 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-28 04:01:42,584 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:01:43,167 INFO L134 CoverageAnalysis]: Checked inductivity of 815 backedges. 0 proven. 497 refuted. 0 times theorem prover too weak. 318 trivial. 0 not checked. [2024-11-28 04:01:43,167 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:01:43,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:01:43,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237693353] [2024-11-28 04:01:43,321 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:01:43,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [507503569] [2024-11-28 04:01:43,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [507503569] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:01:43,322 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:01:43,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-11-28 04:01:43,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31312036] [2024-11-28 04:01:43,322 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:01:43,322 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 04:01:43,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:01:43,323 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 04:01:43,323 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2024-11-28 04:01:43,323 INFO L87 Difference]: Start difference. First operand 9468 states and 10530 transitions. Second operand has 10 states, 9 states have (on average 11.11111111111111) internal successors, (100), 10 states have internal predecessors, (100), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-28 04:01:44,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:01:44,306 INFO L93 Difference]: Finished difference Result 9921 states and 11033 transitions. [2024-11-28 04:01:44,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 04:01:44,307 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 11.11111111111111) internal successors, (100), 10 states have internal predecessors, (100), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) Word has length 205 [2024-11-28 04:01:44,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:01:44,336 INFO L225 Difference]: With dead ends: 9921 [2024-11-28 04:01:44,336 INFO L226 Difference]: Without dead ends: 9920 [2024-11-28 04:01:44,339 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2024-11-28 04:01:44,340 INFO L435 NwaCegarLoop]: 55 mSDtfsCounter, 19 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 683 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 683 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:01:44,341 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 346 Invalid, 683 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 683 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 04:01:44,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9920 states. [2024-11-28 04:01:45,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9920 to 9698. [2024-11-28 04:01:45,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9698 states, 9046 states have (on average 1.0493035595843467) internal successors, (9492), 9048 states have internal predecessors, (9492), 647 states have call successors, (647), 2 states have call predecessors, (647), 2 states have return successors, (647), 647 states have call predecessors, (647), 647 states have call successors, (647) [2024-11-28 04:01:45,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9698 states to 9698 states and 10786 transitions. [2024-11-28 04:01:45,402 INFO L78 Accepts]: Start accepts. Automaton has 9698 states and 10786 transitions. Word has length 205 [2024-11-28 04:01:45,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:01:45,403 INFO L471 AbstractCegarLoop]: Abstraction has 9698 states and 10786 transitions. [2024-11-28 04:01:45,404 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 11.11111111111111) internal successors, (100), 10 states have internal predecessors, (100), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-28 04:01:45,404 INFO L276 IsEmpty]: Start isEmpty. Operand 9698 states and 10786 transitions. [2024-11-28 04:01:45,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2024-11-28 04:01:45,410 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:01:45,410 INFO L218 NwaCegarLoop]: trace histogram [12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 9, 9, 9, 9, 9, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:01:45,421 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2024-11-28 04:01:45,611 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:01:45,611 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-28 04:01:45,611 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:01:45,612 INFO L85 PathProgramCache]: Analyzing trace with hash -1870450079, now seen corresponding path program 9 times [2024-11-28 04:01:45,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:01:45,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112460937] [2024-11-28 04:01:45,612 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:01:45,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:01:45,650 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) [2024-11-28 04:01:45,651 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:01:46,428 INFO L134 CoverageAnalysis]: Checked inductivity of 999 backedges. 164 proven. 665 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked. [2024-11-28 04:01:46,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:01:46,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112460937] [2024-11-28 04:01:46,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112460937] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:01:46,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [241540529] [2024-11-28 04:01:46,429 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:01:46,429 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:01:46,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:01:46,432 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:01:46,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-11-28 04:01:46,524 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2024-11-28 04:01:46,524 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:01:46,526 INFO L256 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-28 04:01:46,531 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:01:47,195 INFO L134 CoverageAnalysis]: Checked inductivity of 999 backedges. 0 proven. 570 refuted. 0 times theorem prover too weak. 429 trivial. 0 not checked. [2024-11-28 04:01:47,195 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:01:47,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [241540529] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:01:47,578 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:01:47,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 9] total 27 [2024-11-28 04:01:47,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880765080] [2024-11-28 04:01:47,579 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:01:47,579 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-28 04:01:47,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:01:47,580 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-28 04:01:47,580 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=774, Unknown=0, NotChecked=0, Total=870 [2024-11-28 04:01:47,580 INFO L87 Difference]: Start difference. First operand 9698 states and 10786 transitions. Second operand has 27 states, 27 states have (on average 9.62962962962963) internal successors, (260), 27 states have internal predecessors, (260), 18 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 18 states have call predecessors, (19), 18 states have call successors, (19) [2024-11-28 04:01:52,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:01:52,956 INFO L93 Difference]: Finished difference Result 20267 states and 22604 transitions. [2024-11-28 04:01:52,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2024-11-28 04:01:52,956 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 9.62962962962963) internal successors, (260), 27 states have internal predecessors, (260), 18 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 18 states have call predecessors, (19), 18 states have call successors, (19) Word has length 224 [2024-11-28 04:01:52,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:01:52,986 INFO L225 Difference]: With dead ends: 20267 [2024-11-28 04:01:52,986 INFO L226 Difference]: Without dead ends: 15163 [2024-11-28 04:01:52,999 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 339 GetRequests, 227 SyntacticMatches, 0 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3982 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=1156, Invalid=11726, Unknown=0, NotChecked=0, Total=12882 [2024-11-28 04:01:53,000 INFO L435 NwaCegarLoop]: 39 mSDtfsCounter, 425 mSDsluCounter, 516 mSDsCounter, 0 mSdLazyCounter, 4634 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 426 SdHoareTripleChecker+Valid, 555 SdHoareTripleChecker+Invalid, 4675 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 4634 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:01:53,000 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [426 Valid, 555 Invalid, 4675 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 4634 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-28 04:01:53,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15163 states. [2024-11-28 04:01:53,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15163 to 11521. [2024-11-28 04:01:53,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11521 states, 10748 states have (on average 1.0421473762560476) internal successors, (11201), 10750 states have internal predecessors, (11201), 768 states have call successors, (768), 2 states have call predecessors, (768), 2 states have return successors, (768), 768 states have call predecessors, (768), 768 states have call successors, (768) [2024-11-28 04:01:53,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11521 states to 11521 states and 12737 transitions. [2024-11-28 04:01:53,864 INFO L78 Accepts]: Start accepts. Automaton has 11521 states and 12737 transitions. Word has length 224 [2024-11-28 04:01:53,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:01:53,865 INFO L471 AbstractCegarLoop]: Abstraction has 11521 states and 12737 transitions. [2024-11-28 04:01:53,865 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 9.62962962962963) internal successors, (260), 27 states have internal predecessors, (260), 18 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 18 states have call predecessors, (19), 18 states have call successors, (19) [2024-11-28 04:01:53,866 INFO L276 IsEmpty]: Start isEmpty. Operand 11521 states and 12737 transitions. [2024-11-28 04:01:53,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2024-11-28 04:01:53,870 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:01:53,870 INFO L218 NwaCegarLoop]: trace histogram [13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 10, 10, 10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:01:53,881 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2024-11-28 04:01:54,071 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:01:54,072 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-28 04:01:54,072 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:01:54,072 INFO L85 PathProgramCache]: Analyzing trace with hash 1041317515, now seen corresponding path program 10 times [2024-11-28 04:01:54,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:01:54,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376686544] [2024-11-28 04:01:54,073 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 04:01:54,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:01:54,111 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 04:01:54,111 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:01:54,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [30171088] [2024-11-28 04:01:54,113 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 04:01:54,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:01:54,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:01:54,115 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:01:54,118 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-11-28 04:01:54,223 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 04:01:54,223 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:01:54,226 INFO L256 TraceCheckSpWp]: Trace formula consists of 381 conjuncts, 44 conjuncts are in the unsatisfiable core [2024-11-28 04:01:54,230 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:01:55,463 INFO L134 CoverageAnalysis]: Checked inductivity of 1202 backedges. 39 proven. 942 refuted. 0 times theorem prover too weak. 221 trivial. 0 not checked. [2024-11-28 04:01:55,463 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:01:55,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:01:55,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376686544] [2024-11-28 04:01:55,711 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:01:55,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [30171088] [2024-11-28 04:01:55,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [30171088] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:01:55,711 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:01:55,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2024-11-28 04:01:55,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41029842] [2024-11-28 04:01:55,712 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:01:55,712 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-28 04:01:55,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:01:55,712 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-28 04:01:55,713 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=532, Unknown=0, NotChecked=0, Total=600 [2024-11-28 04:01:55,713 INFO L87 Difference]: Start difference. First operand 11521 states and 12737 transitions. Second operand has 23 states, 22 states have (on average 7.7727272727272725) internal successors, (171), 23 states have internal predecessors, (171), 12 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 12 states have call predecessors, (13), 12 states have call successors, (13) [2024-11-28 04:01:57,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:01:57,793 INFO L93 Difference]: Finished difference Result 11974 states and 13238 transitions. [2024-11-28 04:01:57,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-28 04:01:57,794 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 7.7727272727272725) internal successors, (171), 23 states have internal predecessors, (171), 12 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 12 states have call predecessors, (13), 12 states have call successors, (13) Word has length 243 [2024-11-28 04:01:57,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:01:57,817 INFO L225 Difference]: With dead ends: 11974 [2024-11-28 04:01:57,817 INFO L226 Difference]: Without dead ends: 11973 [2024-11-28 04:01:57,822 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 264 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=153, Invalid=1107, Unknown=0, NotChecked=0, Total=1260 [2024-11-28 04:01:57,823 INFO L435 NwaCegarLoop]: 45 mSDtfsCounter, 42 mSDsluCounter, 516 mSDsCounter, 0 mSdLazyCounter, 2627 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 561 SdHoareTripleChecker+Invalid, 2631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2627 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:01:57,823 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 561 Invalid, 2631 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2627 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-28 04:01:57,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11973 states. [2024-11-28 04:01:58,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11973 to 11751. [2024-11-28 04:01:58,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11751 states, 10963 states have (on average 1.0422329654291709) internal successors, (11426), 10965 states have internal predecessors, (11426), 783 states have call successors, (783), 2 states have call predecessors, (783), 2 states have return successors, (783), 783 states have call predecessors, (783), 783 states have call successors, (783) [2024-11-28 04:01:58,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11751 states to 11751 states and 12992 transitions. [2024-11-28 04:01:58,864 INFO L78 Accepts]: Start accepts. Automaton has 11751 states and 12992 transitions. Word has length 243 [2024-11-28 04:01:58,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:01:58,864 INFO L471 AbstractCegarLoop]: Abstraction has 11751 states and 12992 transitions. [2024-11-28 04:01:58,865 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 7.7727272727272725) internal successors, (171), 23 states have internal predecessors, (171), 12 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 12 states have call predecessors, (13), 12 states have call successors, (13) [2024-11-28 04:01:58,865 INFO L276 IsEmpty]: Start isEmpty. Operand 11751 states and 12992 transitions. [2024-11-28 04:01:58,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2024-11-28 04:01:58,870 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:01:58,871 INFO L218 NwaCegarLoop]: trace histogram [14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 11, 11, 11, 11, 11, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:01:58,881 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2024-11-28 04:01:59,074 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:01:59,074 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-28 04:01:59,075 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:01:59,075 INFO L85 PathProgramCache]: Analyzing trace with hash -1019087667, now seen corresponding path program 11 times [2024-11-28 04:01:59,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:01:59,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770105455] [2024-11-28 04:01:59,075 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-28 04:01:59,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:01:59,127 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 14 check-sat command(s) [2024-11-28 04:01:59,127 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:01:59,588 INFO L134 CoverageAnalysis]: Checked inductivity of 1424 backedges. 334 proven. 774 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2024-11-28 04:01:59,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:01:59,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770105455] [2024-11-28 04:01:59,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770105455] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:01:59,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [839553773] [2024-11-28 04:01:59,589 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-28 04:01:59,590 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:01:59,590 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:01:59,594 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:01:59,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2024-11-28 04:01:59,717 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 14 check-sat command(s) [2024-11-28 04:01:59,717 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:01:59,719 INFO L256 TraceCheckSpWp]: Trace formula consists of 408 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-28 04:01:59,723 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:02:00,355 INFO L134 CoverageAnalysis]: Checked inductivity of 1424 backedges. 321 proven. 787 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2024-11-28 04:02:00,355 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:02:00,846 INFO L134 CoverageAnalysis]: Checked inductivity of 1424 backedges. 321 proven. 787 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2024-11-28 04:02:00,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [839553773] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:02:00,847 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:02:00,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 23 [2024-11-28 04:02:00,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439819268] [2024-11-28 04:02:00,847 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:02:00,848 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-28 04:02:00,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:02:00,848 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-28 04:02:00,849 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=371, Unknown=0, NotChecked=0, Total=506 [2024-11-28 04:02:00,849 INFO L87 Difference]: Start difference. First operand 11751 states and 12992 transitions. Second operand has 23 states, 23 states have (on average 12.652173913043478) internal successors, (291), 23 states have internal predecessors, (291), 21 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 21 states have call predecessors, (22), 21 states have call successors, (22) [2024-11-28 04:02:02,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:02:02,543 INFO L93 Difference]: Finished difference Result 22092 states and 24512 transitions. [2024-11-28 04:02:02,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-28 04:02:02,544 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 12.652173913043478) internal successors, (291), 23 states have internal predecessors, (291), 21 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 21 states have call predecessors, (22), 21 states have call successors, (22) Word has length 262 [2024-11-28 04:02:02,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:02:02,571 INFO L225 Difference]: With dead ends: 22092 [2024-11-28 04:02:02,572 INFO L226 Difference]: Without dead ends: 17143 [2024-11-28 04:02:02,579 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 544 GetRequests, 504 SyntacticMatches, 13 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 346 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=210, Invalid=602, Unknown=0, NotChecked=0, Total=812 [2024-11-28 04:02:02,580 INFO L435 NwaCegarLoop]: 103 mSDtfsCounter, 29 mSDsluCounter, 483 mSDsCounter, 0 mSdLazyCounter, 1118 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 586 SdHoareTripleChecker+Invalid, 1120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:02:02,580 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 586 Invalid, 1120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1118 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 04:02:02,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17143 states. [2024-11-28 04:02:03,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17143 to 13925. [2024-11-28 04:02:03,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13925 states, 12993 states have (on average 1.0368660047718001) internal successors, (13472), 12995 states have internal predecessors, (13472), 927 states have call successors, (927), 2 states have call predecessors, (927), 2 states have return successors, (927), 927 states have call predecessors, (927), 927 states have call successors, (927) [2024-11-28 04:02:03,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13925 states to 13925 states and 15326 transitions. [2024-11-28 04:02:03,750 INFO L78 Accepts]: Start accepts. Automaton has 13925 states and 15326 transitions. Word has length 262 [2024-11-28 04:02:03,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:02:03,751 INFO L471 AbstractCegarLoop]: Abstraction has 13925 states and 15326 transitions. [2024-11-28 04:02:03,751 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 12.652173913043478) internal successors, (291), 23 states have internal predecessors, (291), 21 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 21 states have call predecessors, (22), 21 states have call successors, (22) [2024-11-28 04:02:03,751 INFO L276 IsEmpty]: Start isEmpty. Operand 13925 states and 15326 transitions. [2024-11-28 04:02:03,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2024-11-28 04:02:03,756 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:02:03,756 INFO L218 NwaCegarLoop]: trace histogram [15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 12, 12, 12, 12, 12, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:02:03,766 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2024-11-28 04:02:03,957 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2024-11-28 04:02:03,957 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-28 04:02:03,958 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:02:03,958 INFO L85 PathProgramCache]: Analyzing trace with hash 1129163935, now seen corresponding path program 12 times [2024-11-28 04:02:03,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:02:03,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118210173] [2024-11-28 04:02:03,958 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-28 04:02:03,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:02:04,015 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 15 check-sat command(s) [2024-11-28 04:02:04,015 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:02:04,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [824725411] [2024-11-28 04:02:04,017 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-28 04:02:04,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:02:04,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:02:04,019 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:02:04,023 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-11-28 04:02:04,259 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 14 check-sat command(s) [2024-11-28 04:02:04,259 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:02:04,261 INFO L256 TraceCheckSpWp]: Trace formula consists of 408 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-28 04:02:04,265 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:02:05,788 INFO L134 CoverageAnalysis]: Checked inductivity of 1665 backedges. 0 proven. 1006 refuted. 0 times theorem prover too weak. 659 trivial. 0 not checked. [2024-11-28 04:02:05,789 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:02:05,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:02:05,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118210173] [2024-11-28 04:02:05,950 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:02:05,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [824725411] [2024-11-28 04:02:05,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [824725411] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:02:05,950 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:02:05,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2024-11-28 04:02:05,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815311293] [2024-11-28 04:02:05,950 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:02:05,951 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-28 04:02:05,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:02:05,951 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-28 04:02:05,952 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=315, Unknown=0, NotChecked=0, Total=380 [2024-11-28 04:02:05,952 INFO L87 Difference]: Start difference. First operand 13925 states and 15326 transitions. Second operand has 18 states, 17 states have (on average 7.529411764705882) internal successors, (128), 18 states have internal predecessors, (128), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2024-11-28 04:02:07,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:02:07,540 INFO L93 Difference]: Finished difference Result 14378 states and 15825 transitions. [2024-11-28 04:02:07,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-28 04:02:07,540 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 7.529411764705882) internal successors, (128), 18 states have internal predecessors, (128), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) Word has length 281 [2024-11-28 04:02:07,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:02:07,572 INFO L225 Difference]: With dead ends: 14378 [2024-11-28 04:02:07,572 INFO L226 Difference]: Without dead ends: 14377 [2024-11-28 04:02:07,577 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 291 GetRequests, 273 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=65, Invalid=315, Unknown=0, NotChecked=0, Total=380 [2024-11-28 04:02:07,577 INFO L435 NwaCegarLoop]: 65 mSDtfsCounter, 19 mSDsluCounter, 457 mSDsCounter, 0 mSdLazyCounter, 1199 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 522 SdHoareTripleChecker+Invalid, 1199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:02:07,578 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 522 Invalid, 1199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1199 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 04:02:07,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14377 states. [2024-11-28 04:02:08,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14377 to 14015. [2024-11-28 04:02:08,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14015 states, 13077 states have (on average 1.0366291962988452) internal successors, (13556), 13079 states have internal predecessors, (13556), 933 states have call successors, (933), 2 states have call predecessors, (933), 2 states have return successors, (933), 933 states have call predecessors, (933), 933 states have call successors, (933) [2024-11-28 04:02:08,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14015 states to 14015 states and 15422 transitions. [2024-11-28 04:02:08,792 INFO L78 Accepts]: Start accepts. Automaton has 14015 states and 15422 transitions. Word has length 281 [2024-11-28 04:02:08,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:02:08,793 INFO L471 AbstractCegarLoop]: Abstraction has 14015 states and 15422 transitions. [2024-11-28 04:02:08,793 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 7.529411764705882) internal successors, (128), 18 states have internal predecessors, (128), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2024-11-28 04:02:08,793 INFO L276 IsEmpty]: Start isEmpty. Operand 14015 states and 15422 transitions. [2024-11-28 04:02:08,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2024-11-28 04:02:08,800 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:02:08,800 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:02:08,812 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2024-11-28 04:02:09,004 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2024-11-28 04:02:09,004 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-28 04:02:09,005 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:02:09,005 INFO L85 PathProgramCache]: Analyzing trace with hash -2101448845, now seen corresponding path program 3 times [2024-11-28 04:02:09,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:02:09,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207864702] [2024-11-28 04:02:09,005 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:02:09,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:02:09,091 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2024-11-28 04:02:09,091 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:02:09,661 INFO L134 CoverageAnalysis]: Checked inductivity of 1929 backedges. 0 proven. 1505 refuted. 0 times theorem prover too weak. 424 trivial. 0 not checked. [2024-11-28 04:02:09,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:02:09,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207864702] [2024-11-28 04:02:09,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1207864702] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:02:09,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [197480308] [2024-11-28 04:02:09,662 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:02:09,662 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:02:09,663 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:02:09,665 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:02:09,669 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2024-11-28 04:02:09,807 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2024-11-28 04:02:09,807 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:02:09,810 INFO L256 TraceCheckSpWp]: Trace formula consists of 445 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-28 04:02:09,815 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:02:10,176 INFO L134 CoverageAnalysis]: Checked inductivity of 1929 backedges. 0 proven. 1505 refuted. 0 times theorem prover too weak. 424 trivial. 0 not checked. [2024-11-28 04:02:10,177 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:02:10,864 INFO L134 CoverageAnalysis]: Checked inductivity of 1929 backedges. 0 proven. 1505 refuted. 0 times theorem prover too weak. 424 trivial. 0 not checked. [2024-11-28 04:02:10,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [197480308] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:02:10,865 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:02:10,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 32 [2024-11-28 04:02:10,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956438883] [2024-11-28 04:02:10,865 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:02:10,866 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-11-28 04:02:10,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:02:10,867 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-11-28 04:02:10,868 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=528, Invalid=528, Unknown=0, NotChecked=0, Total=1056 [2024-11-28 04:02:10,868 INFO L87 Difference]: Start difference. First operand 14015 states and 15422 transitions. Second operand has 33 states, 32 states have (on average 13.53125) internal successors, (433), 33 states have internal predecessors, (433), 32 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 32 states have call predecessors, (33), 32 states have call successors, (33) [2024-11-28 04:02:12,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:02:12,504 INFO L93 Difference]: Finished difference Result 21216 states and 24046 transitions. [2024-11-28 04:02:12,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-11-28 04:02:12,504 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 32 states have (on average 13.53125) internal successors, (433), 33 states have internal predecessors, (433), 32 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 32 states have call predecessors, (33), 32 states have call successors, (33) Word has length 293 [2024-11-28 04:02:12,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:02:12,541 INFO L225 Difference]: With dead ends: 21216 [2024-11-28 04:02:12,541 INFO L226 Difference]: Without dead ends: 21215 [2024-11-28 04:02:12,546 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 600 GetRequests, 569 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=528, Invalid=528, Unknown=0, NotChecked=0, Total=1056 [2024-11-28 04:02:12,548 INFO L435 NwaCegarLoop]: 27 mSDtfsCounter, 23 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 315 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:02:12,549 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 220 Invalid, 322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 315 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 04:02:12,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21215 states. [2024-11-28 04:02:14,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21215 to 21215. [2024-11-28 04:02:14,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21215 states, 19797 states have (on average 1.0476334798201747) internal successors, (20740), 19799 states have internal predecessors, (20740), 1413 states have call successors, (1413), 2 states have call predecessors, (1413), 2 states have return successors, (1413), 1413 states have call predecessors, (1413), 1413 states have call successors, (1413) [2024-11-28 04:02:14,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21215 states to 21215 states and 23566 transitions. [2024-11-28 04:02:14,220 INFO L78 Accepts]: Start accepts. Automaton has 21215 states and 23566 transitions. Word has length 293 [2024-11-28 04:02:14,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:02:14,220 INFO L471 AbstractCegarLoop]: Abstraction has 21215 states and 23566 transitions. [2024-11-28 04:02:14,220 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 32 states have (on average 13.53125) internal successors, (433), 33 states have internal predecessors, (433), 32 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 32 states have call predecessors, (33), 32 states have call successors, (33) [2024-11-28 04:02:14,220 INFO L276 IsEmpty]: Start isEmpty. Operand 21215 states and 23566 transitions. [2024-11-28 04:02:14,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2024-11-28 04:02:14,228 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:02:14,228 INFO L218 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 13, 13, 13, 13, 13, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:02:14,242 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0 [2024-11-28 04:02:14,432 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2024-11-28 04:02:14,433 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-28 04:02:14,433 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:02:14,433 INFO L85 PathProgramCache]: Analyzing trace with hash -427450015, now seen corresponding path program 13 times [2024-11-28 04:02:14,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:02:14,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246116947] [2024-11-28 04:02:14,434 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-28 04:02:14,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:02:14,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:02:15,070 INFO L134 CoverageAnalysis]: Checked inductivity of 1925 backedges. 350 proven. 1151 refuted. 0 times theorem prover too weak. 424 trivial. 0 not checked. [2024-11-28 04:02:15,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:02:15,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246116947] [2024-11-28 04:02:15,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246116947] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:02:15,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [970050816] [2024-11-28 04:02:15,071 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-28 04:02:15,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:02:15,072 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:02:15,074 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:02:15,081 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2024-11-28 04:02:15,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:02:15,191 INFO L256 TraceCheckSpWp]: Trace formula consists of 462 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-28 04:02:15,196 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:02:15,796 INFO L134 CoverageAnalysis]: Checked inductivity of 1925 backedges. 426 proven. 1075 refuted. 0 times theorem prover too weak. 424 trivial. 0 not checked. [2024-11-28 04:02:15,797 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:02:16,286 INFO L134 CoverageAnalysis]: Checked inductivity of 1925 backedges. 426 proven. 1075 refuted. 0 times theorem prover too weak. 424 trivial. 0 not checked. [2024-11-28 04:02:16,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [970050816] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:02:16,287 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:02:16,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18, 18] total 27 [2024-11-28 04:02:16,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884999790] [2024-11-28 04:02:16,287 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:02:16,289 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-28 04:02:16,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:02:16,290 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-28 04:02:16,290 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=174, Invalid=528, Unknown=0, NotChecked=0, Total=702 [2024-11-28 04:02:16,290 INFO L87 Difference]: Start difference. First operand 21215 states and 23566 transitions. Second operand has 27 states, 27 states have (on average 12.814814814814815) internal successors, (346), 27 states have internal predecessors, (346), 25 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 25 states have call predecessors, (26), 25 states have call successors, (26) [2024-11-28 04:02:19,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:02:19,180 INFO L93 Difference]: Finished difference Result 42596 states and 47552 transitions. [2024-11-28 04:02:19,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-28 04:02:19,181 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 12.814814814814815) internal successors, (346), 27 states have internal predecessors, (346), 25 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 25 states have call predecessors, (26), 25 states have call successors, (26) Word has length 300 [2024-11-28 04:02:19,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:02:19,219 INFO L225 Difference]: With dead ends: 42596 [2024-11-28 04:02:19,219 INFO L226 Difference]: Without dead ends: 32367 [2024-11-28 04:02:19,237 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 623 GetRequests, 576 SyntacticMatches, 15 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 527 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=272, Invalid=850, Unknown=0, NotChecked=0, Total=1122 [2024-11-28 04:02:19,237 INFO L435 NwaCegarLoop]: 116 mSDtfsCounter, 27 mSDsluCounter, 676 mSDsCounter, 0 mSdLazyCounter, 1663 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 792 SdHoareTripleChecker+Invalid, 1666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1663 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 04:02:19,237 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 792 Invalid, 1666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1663 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 04:02:19,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32367 states. [2024-11-28 04:02:21,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32367 to 23749. [2024-11-28 04:02:21,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23749 states, 22163 states have (on average 1.0432703153905156) internal successors, (23122), 22165 states have internal predecessors, (23122), 1581 states have call successors, (1581), 2 states have call predecessors, (1581), 2 states have return successors, (1581), 1581 states have call predecessors, (1581), 1581 states have call successors, (1581) [2024-11-28 04:02:21,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23749 states to 23749 states and 26284 transitions. [2024-11-28 04:02:21,377 INFO L78 Accepts]: Start accepts. Automaton has 23749 states and 26284 transitions. Word has length 300 [2024-11-28 04:02:21,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:02:21,378 INFO L471 AbstractCegarLoop]: Abstraction has 23749 states and 26284 transitions. [2024-11-28 04:02:21,378 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 12.814814814814815) internal successors, (346), 27 states have internal predecessors, (346), 25 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 25 states have call predecessors, (26), 25 states have call successors, (26) [2024-11-28 04:02:21,378 INFO L276 IsEmpty]: Start isEmpty. Operand 23749 states and 26284 transitions. [2024-11-28 04:02:21,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2024-11-28 04:02:21,386 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:02:21,386 INFO L218 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 12, 12, 12, 12, 12, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:02:21,393 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2024-11-28 04:02:21,586 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2024-11-28 04:02:21,586 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-28 04:02:21,587 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:02:21,587 INFO L85 PathProgramCache]: Analyzing trace with hash 1620540247, now seen corresponding path program 14 times [2024-11-28 04:02:21,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:02:21,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746661394] [2024-11-28 04:02:21,587 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:02:21,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:02:21,640 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:02:21,640 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:02:21,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [729327720] [2024-11-28 04:02:21,643 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:02:21,643 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:02:21,643 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:02:21,645 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:02:21,648 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2024-11-28 04:02:21,779 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:02:21,780 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:02:21,782 INFO L256 TraceCheckSpWp]: Trace formula consists of 465 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-28 04:02:21,789 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:02:22,701 INFO L134 CoverageAnalysis]: Checked inductivity of 1885 backedges. 0 proven. 1193 refuted. 0 times theorem prover too weak. 692 trivial. 0 not checked. [2024-11-28 04:02:22,701 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:02:22,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:02:22,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746661394] [2024-11-28 04:02:22,889 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:02:22,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [729327720] [2024-11-28 04:02:22,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [729327720] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:02:22,889 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:02:22,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-28 04:02:22,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287100462] [2024-11-28 04:02:22,889 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:02:22,890 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 04:02:22,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:02:22,890 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 04:02:22,890 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-11-28 04:02:22,890 INFO L87 Difference]: Start difference. First operand 23749 states and 26284 transitions. Second operand has 11 states, 10 states have (on average 11.9) internal successors, (119), 11 states have internal predecessors, (119), 8 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) [2024-11-28 04:02:24,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:02:24,881 INFO L93 Difference]: Finished difference Result 24536 states and 27147 transitions. [2024-11-28 04:02:24,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 04:02:24,882 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 11.9) internal successors, (119), 11 states have internal predecessors, (119), 8 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) Word has length 300 [2024-11-28 04:02:24,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:02:24,905 INFO L225 Difference]: With dead ends: 24536 [2024-11-28 04:02:24,905 INFO L226 Difference]: Without dead ends: 24535 [2024-11-28 04:02:24,908 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 310 GetRequests, 299 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-11-28 04:02:24,908 INFO L435 NwaCegarLoop]: 55 mSDtfsCounter, 20 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 696 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 696 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 696 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:02:24,909 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 358 Invalid, 696 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 696 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 04:02:24,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24535 states. [2024-11-28 04:02:26,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24535 to 23749. [2024-11-28 04:02:26,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23749 states, 22163 states have (on average 1.0432251951450615) internal successors, (23121), 22165 states have internal predecessors, (23121), 1581 states have call successors, (1581), 2 states have call predecessors, (1581), 2 states have return successors, (1581), 1581 states have call predecessors, (1581), 1581 states have call successors, (1581) [2024-11-28 04:02:26,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23749 states to 23749 states and 26283 transitions. [2024-11-28 04:02:26,308 INFO L78 Accepts]: Start accepts. Automaton has 23749 states and 26283 transitions. Word has length 300 [2024-11-28 04:02:26,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:02:26,309 INFO L471 AbstractCegarLoop]: Abstraction has 23749 states and 26283 transitions. [2024-11-28 04:02:26,309 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 11.9) internal successors, (119), 11 states have internal predecessors, (119), 8 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) [2024-11-28 04:02:26,309 INFO L276 IsEmpty]: Start isEmpty. Operand 23749 states and 26283 transitions. [2024-11-28 04:02:26,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2024-11-28 04:02:26,313 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:02:26,313 INFO L218 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 10, 10, 10, 10, 10, 5, 5, 5, 5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:02:26,324 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Ended with exit code 0 [2024-11-28 04:02:26,514 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2024-11-28 04:02:26,514 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-28 04:02:26,514 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:02:26,514 INFO L85 PathProgramCache]: Analyzing trace with hash 604185367, now seen corresponding path program 15 times [2024-11-28 04:02:26,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:02:26,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314745294] [2024-11-28 04:02:26,515 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:02:26,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:02:26,560 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 16 check-sat command(s) [2024-11-28 04:02:26,560 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:02:26,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [247674289] [2024-11-28 04:02:26,565 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:02:26,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:02:26,565 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:02:26,570 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:02:26,571 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2024-11-28 04:02:26,668 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-11-28 04:02:26,668 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:02:26,670 INFO L256 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-28 04:02:26,675 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:02:26,863 INFO L134 CoverageAnalysis]: Checked inductivity of 1829 backedges. 504 proven. 45 refuted. 0 times theorem prover too weak. 1280 trivial. 0 not checked. [2024-11-28 04:02:26,863 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:02:27,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:02:27,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314745294] [2024-11-28 04:02:27,038 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:02:27,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [247674289] [2024-11-28 04:02:27,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [247674289] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:02:27,038 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:02:27,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-28 04:02:27,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762953462] [2024-11-28 04:02:27,039 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:02:27,039 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 04:02:27,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:02:27,039 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 04:02:27,039 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2024-11-28 04:02:27,039 INFO L87 Difference]: Start difference. First operand 23749 states and 26283 transitions. Second operand has 9 states, 8 states have (on average 9.375) internal successors, (75), 9 states have internal predecessors, (75), 4 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2024-11-28 04:02:28,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:02:28,594 INFO L93 Difference]: Finished difference Result 41173 states and 45570 transitions. [2024-11-28 04:02:28,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 04:02:28,594 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.375) internal successors, (75), 9 states have internal predecessors, (75), 4 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) Word has length 300 [2024-11-28 04:02:28,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:02:28,624 INFO L225 Difference]: With dead ends: 41173 [2024-11-28 04:02:28,625 INFO L226 Difference]: Without dead ends: 22167 [2024-11-28 04:02:28,647 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 314 GetRequests, 300 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=177, Unknown=0, NotChecked=0, Total=240 [2024-11-28 04:02:28,648 INFO L435 NwaCegarLoop]: 54 mSDtfsCounter, 47 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:02:28,648 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 231 Invalid, 364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 355 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:02:28,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22167 states. [2024-11-28 04:02:30,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22167 to 21942. [2024-11-28 04:02:30,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21942 states, 20476 states have (on average 1.043416682945888) internal successors, (21365), 20478 states have internal predecessors, (21365), 1461 states have call successors, (1461), 2 states have call predecessors, (1461), 2 states have return successors, (1461), 1461 states have call predecessors, (1461), 1461 states have call successors, (1461) [2024-11-28 04:02:30,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21942 states to 21942 states and 24287 transitions. [2024-11-28 04:02:30,058 INFO L78 Accepts]: Start accepts. Automaton has 21942 states and 24287 transitions. Word has length 300 [2024-11-28 04:02:30,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:02:30,058 INFO L471 AbstractCegarLoop]: Abstraction has 21942 states and 24287 transitions. [2024-11-28 04:02:30,058 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.375) internal successors, (75), 9 states have internal predecessors, (75), 4 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2024-11-28 04:02:30,058 INFO L276 IsEmpty]: Start isEmpty. Operand 21942 states and 24287 transitions. [2024-11-28 04:02:30,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 320 [2024-11-28 04:02:30,064 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:02:30,064 INFO L218 NwaCegarLoop]: trace histogram [17, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 14, 14, 14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:02:30,074 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Forceful destruction successful, exit code 0 [2024-11-28 04:02:30,268 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2024-11-28 04:02:30,268 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-28 04:02:30,269 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:02:30,269 INFO L85 PathProgramCache]: Analyzing trace with hash 12742539, now seen corresponding path program 16 times [2024-11-28 04:02:30,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:02:30,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916234517] [2024-11-28 04:02:30,269 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 04:02:30,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:02:30,309 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 04:02:30,309 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:02:30,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [152076975] [2024-11-28 04:02:30,311 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 04:02:30,311 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:02:30,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:02:30,314 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:02:30,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2024-11-28 04:02:30,434 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 04:02:30,434 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:02:30,437 INFO L256 TraceCheckSpWp]: Trace formula consists of 489 conjuncts, 93 conjuncts are in the unsatisfiable core [2024-11-28 04:02:30,443 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:02:33,157 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-11-28 04:02:33,777 WARN L672 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2024-11-28 04:02:34,778 WARN L672 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2024-11-28 04:02:34,812 WARN L672 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2024-11-28 04:02:38,131 WARN L672 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2024-11-28 04:02:38,259 INFO L134 CoverageAnalysis]: Checked inductivity of 2204 backedges. 379 proven. 1488 refuted. 0 times theorem prover too weak. 337 trivial. 0 not checked. [2024-11-28 04:02:38,259 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:02:38,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:02:38,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916234517] [2024-11-28 04:02:38,596 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:02:38,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [152076975] [2024-11-28 04:02:38,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [152076975] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:02:38,596 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:02:38,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [51] total 51 [2024-11-28 04:02:38,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389313575] [2024-11-28 04:02:38,597 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:02:38,597 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2024-11-28 04:02:38,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:02:38,598 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2024-11-28 04:02:38,598 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=357, Invalid=2613, Unknown=0, NotChecked=0, Total=2970 [2024-11-28 04:02:38,599 INFO L87 Difference]: Start difference. First operand 21942 states and 24287 transitions. Second operand has 52 states, 50 states have (on average 4.82) internal successors, (241), 47 states have internal predecessors, (241), 18 states have call successors, (18), 1 states have call predecessors, (18), 3 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-28 04:02:46,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:02:46,535 INFO L93 Difference]: Finished difference Result 22877 states and 25330 transitions. [2024-11-28 04:02:46,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2024-11-28 04:02:46,536 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 50 states have (on average 4.82) internal successors, (241), 47 states have internal predecessors, (241), 18 states have call successors, (18), 1 states have call predecessors, (18), 3 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) Word has length 319 [2024-11-28 04:02:46,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:02:46,562 INFO L225 Difference]: With dead ends: 22877 [2024-11-28 04:02:46,562 INFO L226 Difference]: Without dead ends: 22876 [2024-11-28 04:02:46,567 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 355 GetRequests, 276 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1662 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=816, Invalid=5664, Unknown=0, NotChecked=0, Total=6480 [2024-11-28 04:02:46,567 INFO L435 NwaCegarLoop]: 65 mSDtfsCounter, 125 mSDsluCounter, 718 mSDsCounter, 0 mSdLazyCounter, 6744 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 783 SdHoareTripleChecker+Invalid, 6760 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 6744 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:02:46,567 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 783 Invalid, 6760 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 6744 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2024-11-28 04:02:46,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22876 states. [2024-11-28 04:02:48,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22876 to 22047. [2024-11-28 04:02:48,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22047 states, 20574 states have (on average 1.0432098765432098) internal successors, (21463), 20576 states have internal predecessors, (21463), 1468 states have call successors, (1468), 2 states have call predecessors, (1468), 2 states have return successors, (1468), 1468 states have call predecessors, (1468), 1468 states have call successors, (1468) [2024-11-28 04:02:48,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22047 states to 22047 states and 24399 transitions. [2024-11-28 04:02:48,056 INFO L78 Accepts]: Start accepts. Automaton has 22047 states and 24399 transitions. Word has length 319 [2024-11-28 04:02:48,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:02:48,057 INFO L471 AbstractCegarLoop]: Abstraction has 22047 states and 24399 transitions. [2024-11-28 04:02:48,057 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 50 states have (on average 4.82) internal successors, (241), 47 states have internal predecessors, (241), 18 states have call successors, (18), 1 states have call predecessors, (18), 3 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-28 04:02:48,057 INFO L276 IsEmpty]: Start isEmpty. Operand 22047 states and 24399 transitions. [2024-11-28 04:02:48,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2024-11-28 04:02:48,064 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:02:48,065 INFO L218 NwaCegarLoop]: trace histogram [18, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 15, 15, 15, 15, 15, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:02:48,076 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Ended with exit code 0 [2024-11-28 04:02:48,265 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2024-11-28 04:02:48,266 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-28 04:02:48,266 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:02:48,266 INFO L85 PathProgramCache]: Analyzing trace with hash -1054948659, now seen corresponding path program 17 times [2024-11-28 04:02:48,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:02:48,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990732506] [2024-11-28 04:02:48,267 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-28 04:02:48,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:02:48,334 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 18 check-sat command(s) [2024-11-28 04:02:48,334 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:02:49,007 INFO L134 CoverageAnalysis]: Checked inductivity of 2502 backedges. 559 proven. 1395 refuted. 0 times theorem prover too weak. 548 trivial. 0 not checked. [2024-11-28 04:02:49,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:02:49,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990732506] [2024-11-28 04:02:49,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990732506] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:02:49,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [861229504] [2024-11-28 04:02:49,008 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-28 04:02:49,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:02:49,008 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:02:49,009 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:02:49,011 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2024-11-28 04:02:49,147 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 18 check-sat command(s) [2024-11-28 04:02:49,147 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:02:49,151 INFO L256 TraceCheckSpWp]: Trace formula consists of 516 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-28 04:02:49,156 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:02:49,871 INFO L134 CoverageAnalysis]: Checked inductivity of 2502 backedges. 546 proven. 1408 refuted. 0 times theorem prover too weak. 548 trivial. 0 not checked. [2024-11-28 04:02:49,871 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:02:50,489 INFO L134 CoverageAnalysis]: Checked inductivity of 2502 backedges. 546 proven. 1408 refuted. 0 times theorem prover too weak. 548 trivial. 0 not checked. [2024-11-28 04:02:50,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [861229504] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:02:50,489 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:02:50,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20, 20] total 29 [2024-11-28 04:02:50,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057113376] [2024-11-28 04:02:50,490 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:02:50,490 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-11-28 04:02:50,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:02:50,491 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-11-28 04:02:50,491 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=209, Invalid=603, Unknown=0, NotChecked=0, Total=812 [2024-11-28 04:02:50,491 INFO L87 Difference]: Start difference. First operand 22047 states and 24399 transitions. Second operand has 29 states, 29 states have (on average 12.931034482758621) internal successors, (375), 29 states have internal predecessors, (375), 27 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 27 states have call predecessors, (28), 27 states have call successors, (28) [2024-11-28 04:02:53,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:02:53,175 INFO L93 Difference]: Finished difference Result 42500 states and 47301 transitions. [2024-11-28 04:02:53,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-28 04:02:53,176 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 12.931034482758621) internal successors, (375), 29 states have internal predecessors, (375), 27 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 27 states have call predecessors, (28), 27 states have call successors, (28) Word has length 338 [2024-11-28 04:02:53,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:02:53,218 INFO L225 Difference]: With dead ends: 42500 [2024-11-28 04:02:53,218 INFO L226 Difference]: Without dead ends: 32735 [2024-11-28 04:02:53,233 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 702 GetRequests, 650 SyntacticMatches, 17 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 608 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=333, Invalid=999, Unknown=0, NotChecked=0, Total=1332 [2024-11-28 04:02:53,234 INFO L435 NwaCegarLoop]: 128 mSDtfsCounter, 26 mSDsluCounter, 553 mSDsCounter, 0 mSdLazyCounter, 1404 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 681 SdHoareTripleChecker+Invalid, 1406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:02:53,234 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 681 Invalid, 1406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1404 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 04:02:53,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32735 states. [2024-11-28 04:02:55,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32735 to 24821. [2024-11-28 04:02:55,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24821 states, 23164 states have (on average 1.0390692453807633) internal successors, (24069), 23166 states have internal predecessors, (24069), 1652 states have call successors, (1652), 2 states have call predecessors, (1652), 2 states have return successors, (1652), 1652 states have call predecessors, (1652), 1652 states have call successors, (1652) [2024-11-28 04:02:55,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24821 states to 24821 states and 27373 transitions. [2024-11-28 04:02:55,653 INFO L78 Accepts]: Start accepts. Automaton has 24821 states and 27373 transitions. Word has length 338 [2024-11-28 04:02:55,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:02:55,654 INFO L471 AbstractCegarLoop]: Abstraction has 24821 states and 27373 transitions. [2024-11-28 04:02:55,654 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 12.931034482758621) internal successors, (375), 29 states have internal predecessors, (375), 27 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 27 states have call predecessors, (28), 27 states have call successors, (28) [2024-11-28 04:02:55,654 INFO L276 IsEmpty]: Start isEmpty. Operand 24821 states and 27373 transitions. [2024-11-28 04:02:55,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 358 [2024-11-28 04:02:55,660 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:02:55,661 INFO L218 NwaCegarLoop]: trace histogram [19, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 16, 16, 16, 16, 16, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:02:55,673 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Ended with exit code 0 [2024-11-28 04:02:55,861 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:02:55,861 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-28 04:02:55,862 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:02:55,862 INFO L85 PathProgramCache]: Analyzing trace with hash -1703797089, now seen corresponding path program 18 times [2024-11-28 04:02:55,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:02:55,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284779775] [2024-11-28 04:02:55,862 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-28 04:02:55,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:02:55,919 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 19 check-sat command(s) [2024-11-28 04:02:55,919 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:02:55,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [562889835] [2024-11-28 04:02:55,921 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-28 04:02:55,921 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:02:55,921 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:02:55,930 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:02:55,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2024-11-28 04:02:56,259 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 18 check-sat command(s) [2024-11-28 04:02:56,259 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:02:56,261 INFO L256 TraceCheckSpWp]: Trace formula consists of 516 conjuncts, 50 conjuncts are in the unsatisfiable core [2024-11-28 04:02:56,265 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:02:59,384 INFO L134 CoverageAnalysis]: Checked inductivity of 2819 backedges. 27 proven. 1775 refuted. 0 times theorem prover too weak. 1017 trivial. 0 not checked. [2024-11-28 04:02:59,384 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:02:59,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:02:59,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284779775] [2024-11-28 04:02:59,648 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:02:59,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [562889835] [2024-11-28 04:02:59,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [562889835] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:02:59,648 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:02:59,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33] total 33 [2024-11-28 04:02:59,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830312194] [2024-11-28 04:02:59,648 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:02:59,649 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-28 04:02:59,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:02:59,649 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-28 04:02:59,650 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=1167, Unknown=0, NotChecked=0, Total=1260 [2024-11-28 04:02:59,650 INFO L87 Difference]: Start difference. First operand 24821 states and 27373 transitions. Second operand has 34 states, 33 states have (on average 5.0) internal successors, (165), 34 states have internal predecessors, (165), 12 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 11 states have call predecessors, (13), 12 states have call successors, (13) [2024-11-28 04:03:03,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:03:03,893 INFO L93 Difference]: Finished difference Result 25754 states and 28412 transitions. [2024-11-28 04:03:03,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-11-28 04:03:03,893 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 33 states have (on average 5.0) internal successors, (165), 34 states have internal predecessors, (165), 12 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 11 states have call predecessors, (13), 12 states have call successors, (13) Word has length 357 [2024-11-28 04:03:03,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:03:03,930 INFO L225 Difference]: With dead ends: 25754 [2024-11-28 04:03:03,931 INFO L226 Difference]: Without dead ends: 25753 [2024-11-28 04:03:03,937 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 368 GetRequests, 333 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 350 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=100, Invalid=1232, Unknown=0, NotChecked=0, Total=1332 [2024-11-28 04:03:03,938 INFO L435 NwaCegarLoop]: 37 mSDtfsCounter, 25 mSDsluCounter, 590 mSDsCounter, 0 mSdLazyCounter, 4372 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 627 SdHoareTripleChecker+Invalid, 4373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:03:03,938 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 627 Invalid, 4373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4372 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-28 04:03:03,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25753 states. [2024-11-28 04:03:05,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25753 to 24941. [2024-11-28 04:03:05,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24941 states, 23276 states have (on average 1.0388812510740677) internal successors, (24181), 23278 states have internal predecessors, (24181), 1660 states have call successors, (1660), 2 states have call predecessors, (1660), 2 states have return successors, (1660), 1660 states have call predecessors, (1660), 1660 states have call successors, (1660) [2024-11-28 04:03:05,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24941 states to 24941 states and 27501 transitions. [2024-11-28 04:03:05,659 INFO L78 Accepts]: Start accepts. Automaton has 24941 states and 27501 transitions. Word has length 357 [2024-11-28 04:03:05,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:03:05,659 INFO L471 AbstractCegarLoop]: Abstraction has 24941 states and 27501 transitions. [2024-11-28 04:03:05,659 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 5.0) internal successors, (165), 34 states have internal predecessors, (165), 12 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 11 states have call predecessors, (13), 12 states have call successors, (13) [2024-11-28 04:03:05,659 INFO L276 IsEmpty]: Start isEmpty. Operand 24941 states and 27501 transitions. [2024-11-28 04:03:05,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 358 [2024-11-28 04:03:05,664 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:03:05,665 INFO L218 NwaCegarLoop]: trace histogram [19, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 15, 15, 15, 15, 15, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:03:05,672 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Ended with exit code 0 [2024-11-28 04:03:05,865 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable41 [2024-11-28 04:03:05,865 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-28 04:03:05,865 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:03:05,866 INFO L85 PathProgramCache]: Analyzing trace with hash -886315327, now seen corresponding path program 19 times [2024-11-28 04:03:05,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:03:05,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396928925] [2024-11-28 04:03:05,866 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-28 04:03:05,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:03:05,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:03:05,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2051740129] [2024-11-28 04:03:05,913 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-28 04:03:05,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:03:05,913 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:03:05,922 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:03:05,926 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2024-11-28 04:03:06,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:03:06,088 INFO L256 TraceCheckSpWp]: Trace formula consists of 546 conjuncts, 84 conjuncts are in the unsatisfiable core [2024-11-28 04:03:06,094 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:03:08,981 INFO L134 CoverageAnalysis]: Checked inductivity of 2767 backedges. 81 proven. 2166 refuted. 0 times theorem prover too weak. 520 trivial. 0 not checked. [2024-11-28 04:03:08,981 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:03:09,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:03:09,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396928925] [2024-11-28 04:03:09,511 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:03:09,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2051740129] [2024-11-28 04:03:09,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2051740129] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:03:09,511 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:03:09,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [43] total 43 [2024-11-28 04:03:09,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767013031] [2024-11-28 04:03:09,511 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:03:09,512 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2024-11-28 04:03:09,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:03:09,513 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2024-11-28 04:03:09,514 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=2032, Unknown=0, NotChecked=0, Total=2162 [2024-11-28 04:03:09,514 INFO L87 Difference]: Start difference. First operand 24941 states and 27501 transitions. Second operand has 44 states, 43 states have (on average 6.186046511627907) internal successors, (266), 44 states have internal predecessors, (266), 19 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 19 states have call predecessors, (20), 19 states have call successors, (20) [2024-11-28 04:03:17,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:03:17,382 INFO L93 Difference]: Finished difference Result 37441 states and 41356 transitions. [2024-11-28 04:03:17,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2024-11-28 04:03:17,382 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 43 states have (on average 6.186046511627907) internal successors, (266), 44 states have internal predecessors, (266), 19 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 19 states have call predecessors, (20), 19 states have call successors, (20) Word has length 357 [2024-11-28 04:03:17,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:03:17,418 INFO L225 Difference]: With dead ends: 37441 [2024-11-28 04:03:17,418 INFO L226 Difference]: Without dead ends: 25341 [2024-11-28 04:03:17,432 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 391 GetRequests, 322 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 681 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=308, Invalid=4662, Unknown=0, NotChecked=0, Total=4970 [2024-11-28 04:03:17,432 INFO L435 NwaCegarLoop]: 54 mSDtfsCounter, 154 mSDsluCounter, 1335 mSDsCounter, 0 mSdLazyCounter, 10883 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 1389 SdHoareTripleChecker+Invalid, 10904 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 10883 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:03:17,432 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 1389 Invalid, 10904 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 10883 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2024-11-28 04:03:17,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25341 states. [2024-11-28 04:03:18,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25341 to 24941. [2024-11-28 04:03:18,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24941 states, 23276 states have (on average 1.0387523629489603) internal successors, (24178), 23278 states have internal predecessors, (24178), 1660 states have call successors, (1660), 2 states have call predecessors, (1660), 2 states have return successors, (1660), 1660 states have call predecessors, (1660), 1660 states have call successors, (1660) [2024-11-28 04:03:19,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24941 states to 24941 states and 27498 transitions. [2024-11-28 04:03:19,033 INFO L78 Accepts]: Start accepts. Automaton has 24941 states and 27498 transitions. Word has length 357 [2024-11-28 04:03:19,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:03:19,034 INFO L471 AbstractCegarLoop]: Abstraction has 24941 states and 27498 transitions. [2024-11-28 04:03:19,034 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 43 states have (on average 6.186046511627907) internal successors, (266), 44 states have internal predecessors, (266), 19 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 19 states have call predecessors, (20), 19 states have call successors, (20) [2024-11-28 04:03:19,035 INFO L276 IsEmpty]: Start isEmpty. Operand 24941 states and 27498 transitions. [2024-11-28 04:03:19,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 373 [2024-11-28 04:03:19,042 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:03:19,042 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 18, 18, 18, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:03:19,050 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Ended with exit code 0 [2024-11-28 04:03:19,243 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable42 [2024-11-28 04:03:19,243 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-28 04:03:19,243 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:03:19,243 INFO L85 PathProgramCache]: Analyzing trace with hash 1340828659, now seen corresponding path program 3 times [2024-11-28 04:03:19,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:03:19,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575425089] [2024-11-28 04:03:19,244 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:03:19,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:03:19,303 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 19 check-sat command(s) [2024-11-28 04:03:19,303 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:03:20,072 INFO L134 CoverageAnalysis]: Checked inductivity of 3217 backedges. 0 proven. 2529 refuted. 0 times theorem prover too weak. 688 trivial. 0 not checked. [2024-11-28 04:03:20,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:03:20,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575425089] [2024-11-28 04:03:20,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [575425089] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:03:20,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1390859719] [2024-11-28 04:03:20,072 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:03:20,073 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:03:20,073 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:03:20,075 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:03:20,077 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2024-11-28 04:03:20,237 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 19 check-sat command(s) [2024-11-28 04:03:20,237 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:03:20,239 INFO L256 TraceCheckSpWp]: Trace formula consists of 611 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-28 04:03:20,245 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:03:20,615 INFO L134 CoverageAnalysis]: Checked inductivity of 3217 backedges. 0 proven. 2529 refuted. 0 times theorem prover too weak. 688 trivial. 0 not checked. [2024-11-28 04:03:20,615 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:03:21,630 INFO L134 CoverageAnalysis]: Checked inductivity of 3217 backedges. 0 proven. 2529 refuted. 0 times theorem prover too weak. 688 trivial. 0 not checked. [2024-11-28 04:03:21,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1390859719] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:03:21,630 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:03:21,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20, 20] total 40 [2024-11-28 04:03:21,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400254928] [2024-11-28 04:03:21,631 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:03:21,632 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2024-11-28 04:03:21,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:03:21,633 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2024-11-28 04:03:21,633 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=820, Invalid=820, Unknown=0, NotChecked=0, Total=1640 [2024-11-28 04:03:21,634 INFO L87 Difference]: Start difference. First operand 24941 states and 27498 transitions. Second operand has 41 states, 40 states have (on average 13.775) internal successors, (551), 41 states have internal predecessors, (551), 40 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 40 states have call predecessors, (41), 40 states have call successors, (41) [2024-11-28 04:03:24,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:03:24,803 INFO L93 Difference]: Finished difference Result 44160 states and 48838 transitions. [2024-11-28 04:03:24,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-11-28 04:03:24,803 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 40 states have (on average 13.775) internal successors, (551), 41 states have internal predecessors, (551), 40 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 40 states have call predecessors, (41), 40 states have call successors, (41) Word has length 372 [2024-11-28 04:03:24,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:03:24,857 INFO L225 Difference]: With dead ends: 44160 [2024-11-28 04:03:24,857 INFO L226 Difference]: Without dead ends: 44159 [2024-11-28 04:03:24,865 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 762 GetRequests, 723 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=820, Invalid=820, Unknown=0, NotChecked=0, Total=1640 [2024-11-28 04:03:24,866 INFO L435 NwaCegarLoop]: 28 mSDtfsCounter, 616 mSDsluCounter, 517 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 616 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:03:24,866 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [616 Valid, 545 Invalid, 366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 365 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 04:03:24,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44159 states. [2024-11-28 04:03:28,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44159 to 44121. [2024-11-28 04:03:28,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44121 states, 41176 states have (on average 1.0393918787643288) internal successors, (42798), 41178 states have internal predecessors, (42798), 2940 states have call successors, (2940), 2 states have call predecessors, (2940), 2 states have return successors, (2940), 2940 states have call predecessors, (2940), 2940 states have call successors, (2940) [2024-11-28 04:03:28,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44121 states to 44121 states and 48678 transitions. [2024-11-28 04:03:28,434 INFO L78 Accepts]: Start accepts. Automaton has 44121 states and 48678 transitions. Word has length 372 [2024-11-28 04:03:28,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:03:28,434 INFO L471 AbstractCegarLoop]: Abstraction has 44121 states and 48678 transitions. [2024-11-28 04:03:28,435 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 40 states have (on average 13.775) internal successors, (551), 41 states have internal predecessors, (551), 40 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 40 states have call predecessors, (41), 40 states have call successors, (41) [2024-11-28 04:03:28,435 INFO L276 IsEmpty]: Start isEmpty. Operand 44121 states and 48678 transitions. [2024-11-28 04:03:28,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 377 [2024-11-28 04:03:28,441 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:03:28,442 INFO L218 NwaCegarLoop]: trace histogram [20, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 17, 17, 17, 17, 17, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:03:28,449 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Ended with exit code 0 [2024-11-28 04:03:28,642 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2024-11-28 04:03:28,642 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-28 04:03:28,643 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:03:28,643 INFO L85 PathProgramCache]: Analyzing trace with hash 1480061025, now seen corresponding path program 20 times [2024-11-28 04:03:28,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:03:28,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740524039] [2024-11-28 04:03:28,643 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:03:28,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:03:28,668 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:03:28,668 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:03:29,483 INFO L134 CoverageAnalysis]: Checked inductivity of 3155 backedges. 579 proven. 1888 refuted. 0 times theorem prover too weak. 688 trivial. 0 not checked. [2024-11-28 04:03:29,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:03:29,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740524039] [2024-11-28 04:03:29,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [740524039] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:03:29,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [347959890] [2024-11-28 04:03:29,484 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:03:29,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:03:29,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:03:29,488 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:03:29,495 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2024-11-28 04:03:29,608 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:03:29,609 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:03:29,611 INFO L256 TraceCheckSpWp]: Trace formula consists of 570 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-28 04:03:29,616 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:03:30,420 INFO L134 CoverageAnalysis]: Checked inductivity of 3155 backedges. 681 proven. 1786 refuted. 0 times theorem prover too weak. 688 trivial. 0 not checked. [2024-11-28 04:03:30,420 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:03:31,117 INFO L134 CoverageAnalysis]: Checked inductivity of 3155 backedges. 681 proven. 1786 refuted. 0 times theorem prover too weak. 688 trivial. 0 not checked. [2024-11-28 04:03:31,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [347959890] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:03:31,117 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:03:31,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22, 22] total 33 [2024-11-28 04:03:31,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037002491] [2024-11-28 04:03:31,118 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:03:31,118 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-11-28 04:03:31,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:03:31,120 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-11-28 04:03:31,120 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=256, Invalid=800, Unknown=0, NotChecked=0, Total=1056 [2024-11-28 04:03:31,120 INFO L87 Difference]: Start difference. First operand 44121 states and 48678 transitions. Second operand has 33 states, 33 states have (on average 13.030303030303031) internal successors, (430), 33 states have internal predecessors, (430), 31 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 31 states have call predecessors, (32), 31 states have call successors, (32) [2024-11-28 04:03:36,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:03:36,359 INFO L93 Difference]: Finished difference Result 83134 states and 92296 transitions. [2024-11-28 04:03:36,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-28 04:03:36,360 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 13.030303030303031) internal successors, (430), 33 states have internal predecessors, (430), 31 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 31 states have call predecessors, (32), 31 states have call successors, (32) Word has length 376 [2024-11-28 04:03:36,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:03:36,442 INFO L225 Difference]: With dead ends: 83134 [2024-11-28 04:03:36,442 INFO L226 Difference]: Without dead ends: 64089 [2024-11-28 04:03:36,466 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 781 GetRequests, 722 SyntacticMatches, 19 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 843 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=409, Invalid=1313, Unknown=0, NotChecked=0, Total=1722 [2024-11-28 04:03:36,467 INFO L435 NwaCegarLoop]: 139 mSDtfsCounter, 25 mSDsluCounter, 834 mSDsCounter, 0 mSdLazyCounter, 2098 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 973 SdHoareTripleChecker+Invalid, 2100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 2098 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:03:36,467 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 973 Invalid, 2100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 2098 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 04:03:36,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64089 states. [2024-11-28 04:03:41,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64089 to 49940. [2024-11-28 04:03:41,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49940 states, 46608 states have (on average 1.0355732921386887) internal successors, (48266), 46610 states have internal predecessors, (48266), 3327 states have call successors, (3327), 2 states have call predecessors, (3327), 2 states have return successors, (3327), 3327 states have call predecessors, (3327), 3327 states have call successors, (3327) [2024-11-28 04:03:41,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49940 states to 49940 states and 54920 transitions. [2024-11-28 04:03:41,317 INFO L78 Accepts]: Start accepts. Automaton has 49940 states and 54920 transitions. Word has length 376 [2024-11-28 04:03:41,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:03:41,318 INFO L471 AbstractCegarLoop]: Abstraction has 49940 states and 54920 transitions. [2024-11-28 04:03:41,318 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 13.030303030303031) internal successors, (430), 33 states have internal predecessors, (430), 31 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 31 states have call predecessors, (32), 31 states have call successors, (32) [2024-11-28 04:03:41,318 INFO L276 IsEmpty]: Start isEmpty. Operand 49940 states and 54920 transitions. [2024-11-28 04:03:41,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 396 [2024-11-28 04:03:41,329 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:03:41,329 INFO L218 NwaCegarLoop]: trace histogram [21, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 18, 18, 18, 18, 18, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:03:41,336 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Forceful destruction successful, exit code 0 [2024-11-28 04:03:41,530 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:03:41,530 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-28 04:03:41,530 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:03:41,531 INFO L85 PathProgramCache]: Analyzing trace with hash -285753205, now seen corresponding path program 21 times [2024-11-28 04:03:41,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:03:41,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965593849] [2024-11-28 04:03:41,531 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:03:41,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:03:41,613 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 21 check-sat command(s) [2024-11-28 04:03:41,613 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:03:41,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1321085675] [2024-11-28 04:03:41,615 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:03:41,615 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:03:41,615 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:03:41,617 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:03:41,622 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2024-11-28 04:03:41,834 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) [2024-11-28 04:03:41,834 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:03:41,837 INFO L256 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-28 04:03:41,843 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:03:42,800 INFO L134 CoverageAnalysis]: Checked inductivity of 3510 backedges. 0 proven. 2107 refuted. 0 times theorem prover too weak. 1403 trivial. 0 not checked. [2024-11-28 04:03:42,801 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:03:43,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:03:43,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965593849] [2024-11-28 04:03:43,074 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:03:43,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1321085675] [2024-11-28 04:03:43,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1321085675] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:03:43,075 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:03:43,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2024-11-28 04:03:43,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136289495] [2024-11-28 04:03:43,075 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:03:43,075 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-28 04:03:43,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:03:43,076 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-28 04:03:43,076 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2024-11-28 04:03:43,076 INFO L87 Difference]: Start difference. First operand 49940 states and 54920 transitions. Second operand has 15 states, 14 states have (on average 12.142857142857142) internal successors, (170), 15 states have internal predecessors, (170), 12 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 12 states have call predecessors, (13), 12 states have call successors, (13) [2024-11-28 04:03:48,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:03:48,857 INFO L93 Difference]: Finished difference Result 68055 states and 75135 transitions. [2024-11-28 04:03:48,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-11-28 04:03:48,857 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 12.142857142857142) internal successors, (170), 15 states have internal predecessors, (170), 12 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 12 states have call predecessors, (13), 12 states have call successors, (13) Word has length 395 [2024-11-28 04:03:48,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:03:48,925 INFO L225 Difference]: With dead ends: 68055 [2024-11-28 04:03:48,925 INFO L226 Difference]: Without dead ends: 50564 [2024-11-28 04:03:48,949 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 426 GetRequests, 389 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=186, Invalid=1296, Unknown=0, NotChecked=0, Total=1482 [2024-11-28 04:03:48,950 INFO L435 NwaCegarLoop]: 117 mSDtfsCounter, 249 mSDsluCounter, 1019 mSDsCounter, 0 mSdLazyCounter, 2964 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 1136 SdHoareTripleChecker+Invalid, 2984 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 2964 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:03:48,950 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [250 Valid, 1136 Invalid, 2984 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 2964 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-28 04:03:48,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50564 states. [2024-11-28 04:03:52,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50564 to 50090. [2024-11-28 04:03:52,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50090 states, 46748 states have (on average 1.0354667579361685) internal successors, (48406), 46750 states have internal predecessors, (48406), 3337 states have call successors, (3337), 2 states have call predecessors, (3337), 2 states have return successors, (3337), 3337 states have call predecessors, (3337), 3337 states have call successors, (3337) [2024-11-28 04:03:52,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50090 states to 50090 states and 55080 transitions. [2024-11-28 04:03:52,645 INFO L78 Accepts]: Start accepts. Automaton has 50090 states and 55080 transitions. Word has length 395 [2024-11-28 04:03:52,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:03:52,646 INFO L471 AbstractCegarLoop]: Abstraction has 50090 states and 55080 transitions. [2024-11-28 04:03:52,646 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 12.142857142857142) internal successors, (170), 15 states have internal predecessors, (170), 12 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 12 states have call predecessors, (13), 12 states have call successors, (13) [2024-11-28 04:03:52,646 INFO L276 IsEmpty]: Start isEmpty. Operand 50090 states and 55080 transitions. [2024-11-28 04:03:52,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 396 [2024-11-28 04:03:52,652 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:03:52,652 INFO L218 NwaCegarLoop]: trace histogram [21, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 16, 16, 16, 16, 16, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:03:52,660 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Forceful destruction successful, exit code 0 [2024-11-28 04:03:52,853 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45,43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:03:52,853 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-28 04:03:52,853 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:03:52,854 INFO L85 PathProgramCache]: Analyzing trace with hash -1085258849, now seen corresponding path program 22 times [2024-11-28 04:03:52,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:03:52,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575890615] [2024-11-28 04:03:52,854 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 04:03:52,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:03:52,912 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 04:03:52,912 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:03:52,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [370593926] [2024-11-28 04:03:52,915 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 04:03:52,915 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:03:52,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:03:52,918 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:03:52,921 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8e54b83-557c-430b-baed-f5b93f613b70/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2024-11-28 04:03:53,122 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 04:03:53,122 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:03:53,126 INFO L256 TraceCheckSpWp]: Trace formula consists of 603 conjuncts, 62 conjuncts are in the unsatisfiable core [2024-11-28 04:03:53,132 INFO L279 TraceCheckSpWp]: Computing forward predicates...