./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/egcd3-ll_valuebound5.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_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/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_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/egcd3-ll_valuebound5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/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_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/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 1aca3c96522e618238f11f200c96e0ec490e756d4e04895bd2a51f9a4ff85af1 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:26:02,153 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:26:02,272 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-28 03:26:02,281 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:26:02,282 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:26:02,330 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:26:02,332 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:26:02,332 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:26:02,333 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:26:02,333 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:26:02,335 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:26:02,335 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:26:02,336 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:26:02,336 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:26:02,337 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:26:02,337 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:26:02,337 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:26:02,338 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:26:02,338 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:26:02,338 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:26:02,338 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:26:02,338 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:26:02,338 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:26:02,339 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:26:02,339 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-28 03:26:02,339 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 03:26:02,339 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:26:02,339 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:26:02,339 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:26:02,340 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:26:02,340 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:26:02,341 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:26:02,341 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:26:02,341 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:26:02,341 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:26:02,342 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:26:02,342 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:26:02,342 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:26:02,342 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:26:02,342 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:26:02,343 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:26:02,343 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:26:02,343 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 03:26:02,343 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 03:26:02,343 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 03:26:02,343 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 03:26:02,343 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:26:02,343 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:26:02,343 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:26:02,343 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:26:02,344 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_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/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 -> 1aca3c96522e618238f11f200c96e0ec490e756d4e04895bd2a51f9a4ff85af1 [2024-11-28 03:26:02,738 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:26:02,749 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:26:02,752 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:26:02,754 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:26:02,754 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:26:02,755 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/nla-digbench-scaling/egcd3-ll_valuebound5.c [2024-11-28 03:26:06,448 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/data/419bdf87b/e4f50ea62fc04903888dfb80fbcc5472/FLAGa78c1ab50 [2024-11-28 03:26:06,763 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:26:06,764 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/sv-benchmarks/c/nla-digbench-scaling/egcd3-ll_valuebound5.c [2024-11-28 03:26:06,773 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/data/419bdf87b/e4f50ea62fc04903888dfb80fbcc5472/FLAGa78c1ab50 [2024-11-28 03:26:07,057 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/data/419bdf87b/e4f50ea62fc04903888dfb80fbcc5472 [2024-11-28 03:26:07,060 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:26:07,062 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:26:07,064 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:26:07,064 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:26:07,070 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:26:07,071 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:26:07" (1/1) ... [2024-11-28 03:26:07,072 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57484328 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:26:07, skipping insertion in model container [2024-11-28 03:26:07,072 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:26:07" (1/1) ... [2024-11-28 03:26:07,097 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:26:07,365 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:26:07,376 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:26:07,403 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:26:07,421 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:26:07,421 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:26:07 WrapperNode [2024-11-28 03:26:07,422 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:26:07,423 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:26:07,423 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:26:07,423 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:26:07,434 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:26:07" (1/1) ... [2024-11-28 03:26:07,440 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:26:07" (1/1) ... [2024-11-28 03:26:07,479 INFO L138 Inliner]: procedures = 14, calls = 17, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 136 [2024-11-28 03:26:07,479 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:26:07,480 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:26:07,480 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:26:07,480 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:26:07,493 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:26:07" (1/1) ... [2024-11-28 03:26:07,494 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:26:07" (1/1) ... [2024-11-28 03:26:07,500 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:26:07" (1/1) ... [2024-11-28 03:26:07,530 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 03:26:07,530 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:26:07" (1/1) ... [2024-11-28 03:26:07,530 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:26:07" (1/1) ... [2024-11-28 03:26:07,537 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:26:07" (1/1) ... [2024-11-28 03:26:07,542 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:26:07" (1/1) ... [2024-11-28 03:26:07,550 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:26:07" (1/1) ... [2024-11-28 03:26:07,551 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:26:07" (1/1) ... [2024-11-28 03:26:07,553 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:26:07" (1/1) ... [2024-11-28 03:26:07,555 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:26:07,556 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:26:07,556 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:26:07,556 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:26:07,558 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:26:07" (1/1) ... [2024-11-28 03:26:07,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:26:07,581 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:26:07,599 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:26:07,605 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:26:07,642 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:26:07,642 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 03:26:07,643 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 03:26:07,643 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 03:26:07,643 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:26:07,644 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:26:07,644 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-28 03:26:07,644 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-28 03:26:07,734 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:26:07,737 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:26:08,347 INFO L? ?]: Removed 132 outVars from TransFormulas that were not future-live. [2024-11-28 03:26:08,347 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:26:08,374 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:26:08,374 INFO L312 CfgBuilder]: Removed 6 assume(true) statements. [2024-11-28 03:26:08,375 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:26:08 BoogieIcfgContainer [2024-11-28 03:26:08,375 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:26:08,378 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:26:08,381 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:26:08,388 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:26:08,388 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:26:07" (1/3) ... [2024-11-28 03:26:08,389 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@265a17ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:26:08, skipping insertion in model container [2024-11-28 03:26:08,390 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:26:07" (2/3) ... [2024-11-28 03:26:08,390 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@265a17ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:26:08, skipping insertion in model container [2024-11-28 03:26:08,391 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:26:08" (3/3) ... [2024-11-28 03:26:08,393 INFO L128 eAbstractionObserver]: Analyzing ICFG egcd3-ll_valuebound5.c [2024-11-28 03:26:08,417 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:26:08,419 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG egcd3-ll_valuebound5.c that has 3 procedures, 131 locations, 1 initial locations, 3 loop locations, and 50 error locations. [2024-11-28 03:26:08,499 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:26:08,515 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;@57c06398, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:26:08,515 INFO L334 AbstractCegarLoop]: Starting to check reachability of 50 error locations. [2024-11-28 03:26:08,520 INFO L276 IsEmpty]: Start isEmpty. Operand has 131 states, 69 states have (on average 1.8840579710144927) internal successors, (130), 119 states have internal predecessors, (130), 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 03:26:08,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-28 03:26:08,528 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:26:08,529 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:26:08,530 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 03:26:08,536 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:26:08,536 INFO L85 PathProgramCache]: Analyzing trace with hash 1196419522, now seen corresponding path program 1 times [2024-11-28 03:26:08,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:26:08,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3647896] [2024-11-28 03:26:08,547 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:26:08,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:26:08,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:26:08,754 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-28 03:26:08,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:26:08,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3647896] [2024-11-28 03:26:08,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3647896] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:26:08,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1758796235] [2024-11-28 03:26:08,760 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:26:08,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:26:08,760 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:26:08,765 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:26:08,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 03:26:08,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:26:08,863 INFO L256 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 03:26:08,868 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:26:08,880 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-28 03:26:08,881 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:26:08,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1758796235] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:26:08,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:26:08,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-28 03:26:08,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950786365] [2024-11-28 03:26:08,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:26:08,892 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 03:26:08,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:26:08,918 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 03:26:08,920 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 03:26:08,923 INFO L87 Difference]: Start difference. First operand has 131 states, 69 states have (on average 1.8840579710144927) internal successors, (130), 119 states have internal predecessors, (130), 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) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-28 03:26:09,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:26:09,005 INFO L93 Difference]: Finished difference Result 258 states and 300 transitions. [2024-11-28 03:26:09,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 03:26:09,008 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 26 [2024-11-28 03:26:09,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:26:09,020 INFO L225 Difference]: With dead ends: 258 [2024-11-28 03:26:09,020 INFO L226 Difference]: Without dead ends: 124 [2024-11-28 03:26:09,030 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 27 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 03:26:09,035 INFO L435 NwaCegarLoop]: 139 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, 139 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 03:26:09,036 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:26:09,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2024-11-28 03:26:09,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2024-11-28 03:26:09,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 64 states have (on average 1.8125) internal successors, (116), 113 states have internal predecessors, (116), 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 03:26:09,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 132 transitions. [2024-11-28 03:26:09,106 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 132 transitions. Word has length 26 [2024-11-28 03:26:09,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:26:09,107 INFO L471 AbstractCegarLoop]: Abstraction has 124 states and 132 transitions. [2024-11-28 03:26:09,107 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-28 03:26:09,107 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 132 transitions. [2024-11-28 03:26:09,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-28 03:26:09,110 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:26:09,111 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:26:09,123 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 03:26:09,311 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:26:09,312 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 03:26:09,312 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:26:09,312 INFO L85 PathProgramCache]: Analyzing trace with hash 1152528766, now seen corresponding path program 1 times [2024-11-28 03:26:09,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:26:09,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804270541] [2024-11-28 03:26:09,313 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:26:09,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:26:09,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:26:09,643 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-28 03:26:09,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:26:09,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804270541] [2024-11-28 03:26:09,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804270541] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:26:09,644 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:26:09,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:26:09,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931386733] [2024-11-28 03:26:09,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:26:09,645 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:26:09,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:26:09,646 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:26:09,646 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:26:09,646 INFO L87 Difference]: Start difference. First operand 124 states and 132 transitions. Second operand has 6 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 03:26:10,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:26:10,183 INFO L93 Difference]: Finished difference Result 210 states and 230 transitions. [2024-11-28 03:26:10,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 03:26:10,184 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 26 [2024-11-28 03:26:10,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:26:10,187 INFO L225 Difference]: With dead ends: 210 [2024-11-28 03:26:10,187 INFO L226 Difference]: Without dead ends: 182 [2024-11-28 03:26:10,188 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:26:10,188 INFO L435 NwaCegarLoop]: 79 mSDtfsCounter, 200 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 317 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:26:10,189 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 317 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 03:26:10,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2024-11-28 03:26:10,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 125. [2024-11-28 03:26:10,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 65 states have (on average 1.8) internal successors, (117), 114 states have internal predecessors, (117), 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 03:26:10,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 133 transitions. [2024-11-28 03:26:10,208 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 133 transitions. Word has length 26 [2024-11-28 03:26:10,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:26:10,209 INFO L471 AbstractCegarLoop]: Abstraction has 125 states and 133 transitions. [2024-11-28 03:26:10,209 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 03:26:10,209 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 133 transitions. [2024-11-28 03:26:10,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-28 03:26:10,210 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:26:10,210 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:26:10,210 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 03:26:10,211 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 03:26:10,211 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:26:10,211 INFO L85 PathProgramCache]: Analyzing trace with hash 1368652243, now seen corresponding path program 1 times [2024-11-28 03:26:10,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:26:10,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392093625] [2024-11-28 03:26:10,212 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:26:10,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:26:10,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:26:10,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [491570840] [2024-11-28 03:26:10,273 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:26:10,273 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:26:10,274 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:26:10,276 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:26:10,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 03:26:10,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:26:10,344 INFO L256 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 03:26:10,349 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:26:10,374 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 03:26:10,374 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:26:10,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:26:10,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392093625] [2024-11-28 03:26:10,375 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:26:10,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [491570840] [2024-11-28 03:26:10,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [491570840] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:26:10,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:26:10,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:26:10,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929870610] [2024-11-28 03:26:10,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:26:10,376 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:26:10,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:26:10,377 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:26:10,377 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:26:10,377 INFO L87 Difference]: Start difference. First operand 125 states and 133 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 03:26:10,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:26:10,503 INFO L93 Difference]: Finished difference Result 194 states and 210 transitions. [2024-11-28 03:26:10,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:26:10,504 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 27 [2024-11-28 03:26:10,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:26:10,506 INFO L225 Difference]: With dead ends: 194 [2024-11-28 03:26:10,506 INFO L226 Difference]: Without dead ends: 192 [2024-11-28 03:26:10,507 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 25 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 03:26:10,511 INFO L435 NwaCegarLoop]: 125 mSDtfsCounter, 63 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:26:10,512 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 235 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:26:10,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2024-11-28 03:26:10,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 159. [2024-11-28 03:26:10,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 95 states have (on average 1.8421052631578947) internal successors, (175), 144 states have internal predecessors, (175), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-28 03:26:10,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 199 transitions. [2024-11-28 03:26:10,550 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 199 transitions. Word has length 27 [2024-11-28 03:26:10,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:26:10,550 INFO L471 AbstractCegarLoop]: Abstraction has 159 states and 199 transitions. [2024-11-28 03:26:10,551 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 03:26:10,551 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 199 transitions. [2024-11-28 03:26:10,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-28 03:26:10,551 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:26:10,551 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:26:10,567 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 03:26:10,752 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:26:10,752 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 03:26:10,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:26:10,753 INFO L85 PathProgramCache]: Analyzing trace with hash -521453033, now seen corresponding path program 1 times [2024-11-28 03:26:10,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:26:10,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720069197] [2024-11-28 03:26:10,753 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:26:10,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:26:10,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:26:10,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1312360809] [2024-11-28 03:26:10,777 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:26:10,778 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:26:10,778 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:26:10,780 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:26:10,784 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 03:26:10,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:26:10,852 INFO L256 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 03:26:10,853 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:26:10,883 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 03:26:10,883 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:26:10,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:26:10,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720069197] [2024-11-28 03:26:10,884 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:26:10,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1312360809] [2024-11-28 03:26:10,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1312360809] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:26:10,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:26:10,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:26:10,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878922606] [2024-11-28 03:26:10,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:26:10,885 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:26:10,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:26:10,886 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:26:10,886 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:26:10,887 INFO L87 Difference]: Start difference. First operand 159 states and 199 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 03:26:11,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:26:11,056 INFO L93 Difference]: Finished difference Result 190 states and 208 transitions. [2024-11-28 03:26:11,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:26:11,057 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 28 [2024-11-28 03:26:11,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:26:11,061 INFO L225 Difference]: With dead ends: 190 [2024-11-28 03:26:11,061 INFO L226 Difference]: Without dead ends: 186 [2024-11-28 03:26:11,061 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 26 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 03:26:11,062 INFO L435 NwaCegarLoop]: 119 mSDtfsCounter, 56 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:26:11,062 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 217 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:26:11,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2024-11-28 03:26:11,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 162. [2024-11-28 03:26:11,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 98 states have (on average 1.7959183673469388) internal successors, (176), 147 states have internal predecessors, (176), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-28 03:26:11,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 200 transitions. [2024-11-28 03:26:11,093 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 200 transitions. Word has length 28 [2024-11-28 03:26:11,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:26:11,094 INFO L471 AbstractCegarLoop]: Abstraction has 162 states and 200 transitions. [2024-11-28 03:26:11,094 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 03:26:11,094 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 200 transitions. [2024-11-28 03:26:11,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-28 03:26:11,098 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:26:11,098 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:26:11,111 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-28 03:26:11,299 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:26:11,300 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 03:26:11,300 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:26:11,300 INFO L85 PathProgramCache]: Analyzing trace with hash 1014815381, now seen corresponding path program 1 times [2024-11-28 03:26:11,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:26:11,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597761358] [2024-11-28 03:26:11,301 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:26:11,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:26:11,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:26:11,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1458601283] [2024-11-28 03:26:11,346 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:26:11,347 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:26:11,347 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:26:11,354 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:26:11,363 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 03:26:11,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:26:11,420 INFO L256 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 03:26:11,422 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:26:11,571 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 03:26:11,571 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:26:11,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:26:11,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597761358] [2024-11-28 03:26:11,572 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:26:11,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1458601283] [2024-11-28 03:26:11,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1458601283] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:26:11,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:26:11,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:26:11,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85669370] [2024-11-28 03:26:11,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:26:11,573 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:26:11,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:26:11,574 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:26:11,574 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:26:11,574 INFO L87 Difference]: Start difference. First operand 162 states and 200 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, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 03:26:11,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:26:11,868 INFO L93 Difference]: Finished difference Result 181 states and 200 transitions. [2024-11-28 03:26:11,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:26:11,869 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, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 29 [2024-11-28 03:26:11,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:26:11,871 INFO L225 Difference]: With dead ends: 181 [2024-11-28 03:26:11,871 INFO L226 Difference]: Without dead ends: 180 [2024-11-28 03:26:11,871 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 26 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 03:26:11,872 INFO L435 NwaCegarLoop]: 95 mSDtfsCounter, 136 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:26:11,873 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 196 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 03:26:11,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2024-11-28 03:26:11,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 162. [2024-11-28 03:26:11,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 98 states have (on average 1.7857142857142858) internal successors, (175), 147 states have internal predecessors, (175), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-28 03:26:11,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 199 transitions. [2024-11-28 03:26:11,889 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 199 transitions. Word has length 29 [2024-11-28 03:26:11,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:26:11,890 INFO L471 AbstractCegarLoop]: Abstraction has 162 states and 199 transitions. [2024-11-28 03:26:11,890 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, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 03:26:11,890 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 199 transitions. [2024-11-28 03:26:11,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-28 03:26:11,891 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:26:11,891 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:26:11,902 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-28 03:26:12,095 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:26:12,096 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 03:26:12,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:26:12,096 INFO L85 PathProgramCache]: Analyzing trace with hash 1394813657, now seen corresponding path program 1 times [2024-11-28 03:26:12,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:26:12,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481823394] [2024-11-28 03:26:12,097 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:26:12,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:26:12,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:26:12,238 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 03:26:12,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:26:12,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481823394] [2024-11-28 03:26:12,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [481823394] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:26:12,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:26:12,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:26:12,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551992140] [2024-11-28 03:26:12,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:26:12,239 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:26:12,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:26:12,240 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:26:12,240 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:26:12,240 INFO L87 Difference]: Start difference. First operand 162 states and 199 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 03:26:12,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:26:12,872 INFO L93 Difference]: Finished difference Result 185 states and 203 transitions. [2024-11-28 03:26:12,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:26:12,873 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 30 [2024-11-28 03:26:12,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:26:12,874 INFO L225 Difference]: With dead ends: 185 [2024-11-28 03:26:12,874 INFO L226 Difference]: Without dead ends: 184 [2024-11-28 03:26:12,875 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:26:12,876 INFO L435 NwaCegarLoop]: 121 mSDtfsCounter, 52 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 409 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 03:26:12,876 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 409 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 03:26:12,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2024-11-28 03:26:12,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 163. [2024-11-28 03:26:12,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 99 states have (on average 1.7777777777777777) internal successors, (176), 148 states have internal predecessors, (176), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-28 03:26:12,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 200 transitions. [2024-11-28 03:26:12,891 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 200 transitions. Word has length 30 [2024-11-28 03:26:12,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:26:12,892 INFO L471 AbstractCegarLoop]: Abstraction has 163 states and 200 transitions. [2024-11-28 03:26:12,892 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 03:26:12,892 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 200 transitions. [2024-11-28 03:26:12,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-28 03:26:12,893 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:26:12,893 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:26:12,893 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 03:26:12,893 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 03:26:12,893 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:26:12,893 INFO L85 PathProgramCache]: Analyzing trace with hash 1394505819, now seen corresponding path program 1 times [2024-11-28 03:26:12,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:26:12,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604037908] [2024-11-28 03:26:12,894 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:26:12,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:26:12,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:26:12,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2029290908] [2024-11-28 03:26:12,914 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:26:12,914 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:26:12,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:26:12,917 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:26:12,922 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 03:26:12,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:26:12,983 INFO L256 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 03:26:12,985 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:26:13,093 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 03:26:13,094 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:26:13,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:26:13,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604037908] [2024-11-28 03:26:13,094 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:26:13,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2029290908] [2024-11-28 03:26:13,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2029290908] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:26:13,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:26:13,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:26:13,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859761148] [2024-11-28 03:26:13,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:26:13,096 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:26:13,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:26:13,097 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:26:13,097 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:26:13,097 INFO L87 Difference]: Start difference. First operand 163 states and 200 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 03:26:13,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:26:13,390 INFO L93 Difference]: Finished difference Result 182 states and 200 transitions. [2024-11-28 03:26:13,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:26:13,391 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 30 [2024-11-28 03:26:13,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:26:13,393 INFO L225 Difference]: With dead ends: 182 [2024-11-28 03:26:13,393 INFO L226 Difference]: Without dead ends: 181 [2024-11-28 03:26:13,393 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 27 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 03:26:13,394 INFO L435 NwaCegarLoop]: 95 mSDtfsCounter, 135 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:26:13,398 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 196 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 03:26:13,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2024-11-28 03:26:13,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 163. [2024-11-28 03:26:13,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 99 states have (on average 1.7676767676767677) internal successors, (175), 148 states have internal predecessors, (175), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-28 03:26:13,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 199 transitions. [2024-11-28 03:26:13,422 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 199 transitions. Word has length 30 [2024-11-28 03:26:13,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:26:13,422 INFO L471 AbstractCegarLoop]: Abstraction has 163 states and 199 transitions. [2024-11-28 03:26:13,423 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 03:26:13,423 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 199 transitions. [2024-11-28 03:26:13,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-28 03:26:13,423 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:26:13,424 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:26:13,437 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-28 03:26:13,626 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:26:13,627 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 03:26:13,627 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:26:13,627 INFO L85 PathProgramCache]: Analyzing trace with hash 289550559, now seen corresponding path program 1 times [2024-11-28 03:26:13,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:26:13,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451968009] [2024-11-28 03:26:13,628 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:26:13,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:26:13,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:26:13,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [721116091] [2024-11-28 03:26:13,660 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:26:13,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:26:13,661 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:26:13,663 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:26:13,672 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-28 03:26:13,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:26:13,759 INFO L256 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 03:26:13,760 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:26:13,858 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 03:26:13,859 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:26:13,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:26:13,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451968009] [2024-11-28 03:26:13,859 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:26:13,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [721116091] [2024-11-28 03:26:13,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [721116091] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:26:13,860 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:26:13,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:26:13,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210403972] [2024-11-28 03:26:13,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:26:13,860 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:26:13,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:26:13,861 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:26:13,861 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:26:13,861 INFO L87 Difference]: Start difference. First operand 163 states and 199 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 03:26:14,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:26:14,171 INFO L93 Difference]: Finished difference Result 183 states and 201 transitions. [2024-11-28 03:26:14,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:26:14,173 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 31 [2024-11-28 03:26:14,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:26:14,175 INFO L225 Difference]: With dead ends: 183 [2024-11-28 03:26:14,175 INFO L226 Difference]: Without dead ends: 182 [2024-11-28 03:26:14,177 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 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 03:26:14,178 INFO L435 NwaCegarLoop]: 115 mSDtfsCounter, 52 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 285 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:26:14,178 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 285 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 03:26:14,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2024-11-28 03:26:14,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 164. [2024-11-28 03:26:14,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 100 states have (on average 1.76) internal successors, (176), 149 states have internal predecessors, (176), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-28 03:26:14,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 200 transitions. [2024-11-28 03:26:14,196 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 200 transitions. Word has length 31 [2024-11-28 03:26:14,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:26:14,197 INFO L471 AbstractCegarLoop]: Abstraction has 164 states and 200 transitions. [2024-11-28 03:26:14,197 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 03:26:14,197 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 200 transitions. [2024-11-28 03:26:14,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-28 03:26:14,198 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:26:14,198 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:26:14,211 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-28 03:26:14,399 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:26:14,399 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 03:26:14,400 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:26:14,400 INFO L85 PathProgramCache]: Analyzing trace with hash 280007511, now seen corresponding path program 1 times [2024-11-28 03:26:14,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:26:14,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793974368] [2024-11-28 03:26:14,400 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:26:14,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:26:14,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:26:14,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [551220263] [2024-11-28 03:26:14,420 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:26:14,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:26:14,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:26:14,423 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:26:14,428 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-28 03:26:14,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:26:14,495 INFO L256 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 03:26:14,496 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:26:14,558 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 03:26:14,558 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:26:14,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:26:14,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793974368] [2024-11-28 03:26:14,558 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:26:14,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [551220263] [2024-11-28 03:26:14,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [551220263] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:26:14,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:26:14,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:26:14,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722743348] [2024-11-28 03:26:14,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:26:14,559 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:26:14,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:26:14,559 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:26:14,559 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:26:14,560 INFO L87 Difference]: Start difference. First operand 164 states and 200 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 03:26:14,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:26:14,808 INFO L93 Difference]: Finished difference Result 190 states and 206 transitions. [2024-11-28 03:26:14,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:26:14,809 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 31 [2024-11-28 03:26:14,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:26:14,812 INFO L225 Difference]: With dead ends: 190 [2024-11-28 03:26:14,812 INFO L226 Difference]: Without dead ends: 189 [2024-11-28 03:26:14,813 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 28 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 03:26:14,814 INFO L435 NwaCegarLoop]: 121 mSDtfsCounter, 55 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:26:14,814 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 316 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:26:14,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2024-11-28 03:26:14,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 164. [2024-11-28 03:26:14,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 100 states have (on average 1.75) internal successors, (175), 149 states have internal predecessors, (175), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-28 03:26:14,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 199 transitions. [2024-11-28 03:26:14,839 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 199 transitions. Word has length 31 [2024-11-28 03:26:14,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:26:14,840 INFO L471 AbstractCegarLoop]: Abstraction has 164 states and 199 transitions. [2024-11-28 03:26:14,840 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 03:26:14,840 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 199 transitions. [2024-11-28 03:26:14,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-28 03:26:14,841 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:26:14,841 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:26:14,852 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-28 03:26:15,041 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-11-28 03:26:15,042 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 03:26:15,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:26:15,042 INFO L85 PathProgramCache]: Analyzing trace with hash 386132891, now seen corresponding path program 1 times [2024-11-28 03:26:15,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:26:15,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143968717] [2024-11-28 03:26:15,043 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:26:15,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:26:15,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:26:15,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [563488267] [2024-11-28 03:26:15,063 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:26:15,063 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:26:15,063 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:26:15,067 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:26:15,070 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-28 03:26:15,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:26:15,134 INFO L256 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 03:26:15,136 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:26:15,158 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 03:26:15,159 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:26:15,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:26:15,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143968717] [2024-11-28 03:26:15,159 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:26:15,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [563488267] [2024-11-28 03:26:15,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [563488267] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:26:15,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:26:15,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:26:15,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856775363] [2024-11-28 03:26:15,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:26:15,160 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:26:15,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:26:15,161 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:26:15,161 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:26:15,161 INFO L87 Difference]: Start difference. First operand 164 states and 199 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 03:26:15,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:26:15,336 INFO L93 Difference]: Finished difference Result 274 states and 350 transitions. [2024-11-28 03:26:15,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:26:15,338 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 32 [2024-11-28 03:26:15,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:26:15,340 INFO L225 Difference]: With dead ends: 274 [2024-11-28 03:26:15,341 INFO L226 Difference]: Without dead ends: 268 [2024-11-28 03:26:15,341 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 30 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 03:26:15,346 INFO L435 NwaCegarLoop]: 110 mSDtfsCounter, 55 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:26:15,347 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 212 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:26:15,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2024-11-28 03:26:15,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 236. [2024-11-28 03:26:15,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 164 states have (on average 1.7195121951219512) internal successors, (282), 213 states have internal predecessors, (282), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-28 03:26:15,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 322 transitions. [2024-11-28 03:26:15,379 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 322 transitions. Word has length 32 [2024-11-28 03:26:15,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:26:15,379 INFO L471 AbstractCegarLoop]: Abstraction has 236 states and 322 transitions. [2024-11-28 03:26:15,379 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 03:26:15,380 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 322 transitions. [2024-11-28 03:26:15,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-28 03:26:15,384 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:26:15,384 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:26:15,395 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-28 03:26:15,584 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:26:15,585 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 03:26:15,585 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:26:15,585 INFO L85 PathProgramCache]: Analyzing trace with hash 90298333, now seen corresponding path program 1 times [2024-11-28 03:26:15,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:26:15,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109929201] [2024-11-28 03:26:15,586 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:26:15,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:26:15,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:26:15,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2135568336] [2024-11-28 03:26:15,622 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:26:15,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:26:15,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:26:15,629 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:26:15,645 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-28 03:26:15,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:26:15,690 INFO L256 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 03:26:15,697 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:26:15,861 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 03:26:15,862 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:26:15,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:26:15,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109929201] [2024-11-28 03:26:15,862 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:26:15,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2135568336] [2024-11-28 03:26:15,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2135568336] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:26:15,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:26:15,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:26:15,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742835684] [2024-11-28 03:26:15,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:26:15,863 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:26:15,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:26:15,864 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:26:15,865 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:26:15,865 INFO L87 Difference]: Start difference. First operand 236 states and 322 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 03:26:16,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:26:16,186 INFO L93 Difference]: Finished difference Result 261 states and 326 transitions. [2024-11-28 03:26:16,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:26:16,186 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 32 [2024-11-28 03:26:16,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:26:16,188 INFO L225 Difference]: With dead ends: 261 [2024-11-28 03:26:16,188 INFO L226 Difference]: Without dead ends: 260 [2024-11-28 03:26:16,189 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:26:16,189 INFO L435 NwaCegarLoop]: 123 mSDtfsCounter, 98 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:26:16,190 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 239 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 03:26:16,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2024-11-28 03:26:16,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 236. [2024-11-28 03:26:16,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 164 states have (on average 1.7073170731707317) internal successors, (280), 213 states have internal predecessors, (280), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-28 03:26:16,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 320 transitions. [2024-11-28 03:26:16,214 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 320 transitions. Word has length 32 [2024-11-28 03:26:16,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:26:16,215 INFO L471 AbstractCegarLoop]: Abstraction has 236 states and 320 transitions. [2024-11-28 03:26:16,215 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 03:26:16,215 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 320 transitions. [2024-11-28 03:26:16,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-28 03:26:16,216 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:26:16,216 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:26:16,228 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-28 03:26:16,417 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-28 03:26:16,417 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 03:26:16,418 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:26:16,418 INFO L85 PathProgramCache]: Analyzing trace with hash 1706525789, now seen corresponding path program 1 times [2024-11-28 03:26:16,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:26:16,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320626823] [2024-11-28 03:26:16,418 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:26:16,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:26:16,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:26:16,583 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 03:26:16,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:26:16,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320626823] [2024-11-28 03:26:16,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [320626823] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:26:16,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:26:16,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:26:16,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574171471] [2024-11-28 03:26:16,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:26:16,585 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:26:16,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:26:16,586 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:26:16,586 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:26:16,586 INFO L87 Difference]: Start difference. First operand 236 states and 320 transitions. Second operand has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 03:26:16,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:26:16,770 INFO L93 Difference]: Finished difference Result 265 states and 330 transitions. [2024-11-28 03:26:16,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:26:16,771 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 34 [2024-11-28 03:26:16,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:26:16,773 INFO L225 Difference]: With dead ends: 265 [2024-11-28 03:26:16,773 INFO L226 Difference]: Without dead ends: 264 [2024-11-28 03:26:16,774 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:26:16,774 INFO L435 NwaCegarLoop]: 124 mSDtfsCounter, 55 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 349 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:26:16,775 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 349 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:26:16,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2024-11-28 03:26:16,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 241. [2024-11-28 03:26:16,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 169 states have (on average 1.698224852071006) internal successors, (287), 218 states have internal predecessors, (287), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-28 03:26:16,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 327 transitions. [2024-11-28 03:26:16,797 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 327 transitions. Word has length 34 [2024-11-28 03:26:16,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:26:16,798 INFO L471 AbstractCegarLoop]: Abstraction has 241 states and 327 transitions. [2024-11-28 03:26:16,798 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 03:26:16,798 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 327 transitions. [2024-11-28 03:26:16,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-28 03:26:16,799 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:26:16,799 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:26:16,799 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-28 03:26:16,799 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 03:26:16,799 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:26:16,799 INFO L85 PathProgramCache]: Analyzing trace with hash 1362692067, now seen corresponding path program 1 times [2024-11-28 03:26:16,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:26:16,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121332268] [2024-11-28 03:26:16,800 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:26:16,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:26:16,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:26:16,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1264119898] [2024-11-28 03:26:16,817 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:26:16,817 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:26:16,817 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:26:16,819 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:26:16,823 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-28 03:26:16,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:26:16,879 INFO L256 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 03:26:16,880 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:26:16,973 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 03:26:16,973 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:26:16,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:26:16,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121332268] [2024-11-28 03:26:16,973 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:26:16,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1264119898] [2024-11-28 03:26:16,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1264119898] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:26:16,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:26:16,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:26:16,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742276375] [2024-11-28 03:26:16,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:26:16,975 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:26:16,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:26:16,975 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:26:16,976 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:26:16,976 INFO L87 Difference]: Start difference. First operand 241 states and 327 transitions. Second operand has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 03:26:17,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:26:17,283 INFO L93 Difference]: Finished difference Result 282 states and 338 transitions. [2024-11-28 03:26:17,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:26:17,284 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 35 [2024-11-28 03:26:17,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:26:17,286 INFO L225 Difference]: With dead ends: 282 [2024-11-28 03:26:17,288 INFO L226 Difference]: Without dead ends: 281 [2024-11-28 03:26:17,288 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:26:17,289 INFO L435 NwaCegarLoop]: 110 mSDtfsCounter, 149 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:26:17,289 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 346 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 03:26:17,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2024-11-28 03:26:17,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 243. [2024-11-28 03:26:17,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 171 states have (on average 1.6900584795321638) internal successors, (289), 220 states have internal predecessors, (289), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-28 03:26:17,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 329 transitions. [2024-11-28 03:26:17,318 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 329 transitions. Word has length 35 [2024-11-28 03:26:17,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:26:17,319 INFO L471 AbstractCegarLoop]: Abstraction has 243 states and 329 transitions. [2024-11-28 03:26:17,320 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 03:26:17,320 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 329 transitions. [2024-11-28 03:26:17,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-28 03:26:17,321 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:26:17,321 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:26:17,333 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-28 03:26:17,521 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-28 03:26:17,522 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 03:26:17,523 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:26:17,523 INFO L85 PathProgramCache]: Analyzing trace with hash -417947209, now seen corresponding path program 1 times [2024-11-28 03:26:17,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:26:17,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322500596] [2024-11-28 03:26:17,523 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:26:17,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:26:17,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:26:17,788 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-28 03:26:17,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:26:17,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322500596] [2024-11-28 03:26:17,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [322500596] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:26:17,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1344096442] [2024-11-28 03:26:17,788 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:26:17,789 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:26:17,789 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:26:17,791 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:26:17,799 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-28 03:26:17,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:26:17,839 INFO L256 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-28 03:26:17,840 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:26:17,925 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 03:26:17,925 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:26:18,195 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 03:26:18,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1344096442] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:26:18,199 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:26:18,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 5] total 15 [2024-11-28 03:26:18,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265611804] [2024-11-28 03:26:18,199 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:26:18,200 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-28 03:26:18,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:26:18,201 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-28 03:26:18,201 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2024-11-28 03:26:18,201 INFO L87 Difference]: Start difference. First operand 243 states and 329 transitions. Second operand has 15 states, 15 states have (on average 3.3333333333333335) internal successors, (50), 14 states have internal predecessors, (50), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-28 03:26:20,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:26:20,784 INFO L93 Difference]: Finished difference Result 867 states and 1152 transitions. [2024-11-28 03:26:20,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-28 03:26:20,786 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.3333333333333335) internal successors, (50), 14 states have internal predecessors, (50), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 37 [2024-11-28 03:26:20,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:26:20,792 INFO L225 Difference]: With dead ends: 867 [2024-11-28 03:26:20,792 INFO L226 Difference]: Without dead ends: 839 [2024-11-28 03:26:20,795 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 66 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 242 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=316, Invalid=944, Unknown=0, NotChecked=0, Total=1260 [2024-11-28 03:26:20,797 INFO L435 NwaCegarLoop]: 167 mSDtfsCounter, 1810 mSDsluCounter, 1130 mSDsCounter, 0 mSdLazyCounter, 1481 mSolverCounterSat, 256 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1810 SdHoareTripleChecker+Valid, 1297 SdHoareTripleChecker+Invalid, 1737 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 256 IncrementalHoareTripleChecker+Valid, 1481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-28 03:26:20,797 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1810 Valid, 1297 Invalid, 1737 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [256 Valid, 1481 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-28 03:26:20,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 839 states. [2024-11-28 03:26:20,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 839 to 246. [2024-11-28 03:26:20,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 174 states have (on average 1.6896551724137931) internal successors, (294), 223 states have internal predecessors, (294), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-28 03:26:20,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 334 transitions. [2024-11-28 03:26:20,838 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 334 transitions. Word has length 37 [2024-11-28 03:26:20,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:26:20,839 INFO L471 AbstractCegarLoop]: Abstraction has 246 states and 334 transitions. [2024-11-28 03:26:20,839 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.3333333333333335) internal successors, (50), 14 states have internal predecessors, (50), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-28 03:26:20,839 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 334 transitions. [2024-11-28 03:26:20,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-28 03:26:20,842 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:26:20,842 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:26:20,854 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-28 03:26:21,046 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-28 03:26:21,047 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 03:26:21,048 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:26:21,048 INFO L85 PathProgramCache]: Analyzing trace with hash -71462726, now seen corresponding path program 1 times [2024-11-28 03:26:21,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:26:21,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111889628] [2024-11-28 03:26:21,049 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:26:21,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:26:21,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:26:21,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [45491387] [2024-11-28 03:26:21,077 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:26:21,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:26:21,078 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:26:21,082 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:26:21,093 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-28 03:26:21,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:26:21,144 INFO L256 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-28 03:26:21,146 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:26:21,390 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 9 proven. 5 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-28 03:26:21,391 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:26:21,776 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-28 03:26:21,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:26:21,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111889628] [2024-11-28 03:26:21,776 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:26:21,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [45491387] [2024-11-28 03:26:21,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [45491387] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:26:21,777 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 03:26:21,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 11 [2024-11-28 03:26:21,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004084882] [2024-11-28 03:26:21,777 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 03:26:21,778 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 03:26:21,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:26:21,778 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 03:26:21,779 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2024-11-28 03:26:21,779 INFO L87 Difference]: Start difference. First operand 246 states and 334 transitions. Second operand has 12 states, 10 states have (on average 4.1) internal successors, (41), 9 states have internal predecessors, (41), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (7), 4 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 03:26:22,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:26:22,914 INFO L93 Difference]: Finished difference Result 431 states and 559 transitions. [2024-11-28 03:26:22,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 03:26:22,915 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 4.1) internal successors, (41), 9 states have internal predecessors, (41), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (7), 4 states have call predecessors, (7), 2 states have call successors, (7) Word has length 38 [2024-11-28 03:26:22,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:26:22,918 INFO L225 Difference]: With dead ends: 431 [2024-11-28 03:26:22,919 INFO L226 Difference]: Without dead ends: 428 [2024-11-28 03:26:22,921 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=83, Invalid=189, Unknown=0, NotChecked=0, Total=272 [2024-11-28 03:26:22,921 INFO L435 NwaCegarLoop]: 167 mSDtfsCounter, 541 mSDsluCounter, 788 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 542 SdHoareTripleChecker+Valid, 955 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 03:26:22,922 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [542 Valid, 955 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 481 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 03:26:22,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2024-11-28 03:26:22,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 258. [2024-11-28 03:26:22,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 186 states have (on average 1.6612903225806452) internal successors, (309), 234 states have internal predecessors, (309), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-28 03:26:22,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 351 transitions. [2024-11-28 03:26:22,965 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 351 transitions. Word has length 38 [2024-11-28 03:26:22,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:26:22,966 INFO L471 AbstractCegarLoop]: Abstraction has 258 states and 351 transitions. [2024-11-28 03:26:22,966 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 4.1) internal successors, (41), 9 states have internal predecessors, (41), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (7), 4 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 03:26:22,966 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 351 transitions. [2024-11-28 03:26:22,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-28 03:26:22,968 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:26:22,968 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:26:22,980 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-28 03:26:23,169 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-28 03:26:23,169 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 03:26:23,170 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:26:23,170 INFO L85 PathProgramCache]: Analyzing trace with hash 2079622866, now seen corresponding path program 1 times [2024-11-28 03:26:23,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:26:23,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487047306] [2024-11-28 03:26:23,170 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:26:23,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:26:23,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:26:23,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2030865488] [2024-11-28 03:26:23,188 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:26:23,188 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:26:23,188 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:26:23,191 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:26:23,194 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-28 03:26:23,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:26:23,255 INFO L256 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-28 03:26:23,257 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:26:23,468 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 9 proven. 5 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-28 03:26:23,468 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:26:23,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:26:23,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487047306] [2024-11-28 03:26:23,995 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:26:23,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2030865488] [2024-11-28 03:26:23,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2030865488] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:26:23,995 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:26:23,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-28 03:26:23,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647090988] [2024-11-28 03:26:23,997 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 03:26:23,998 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 03:26:23,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:26:23,998 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 03:26:23,998 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2024-11-28 03:26:23,999 INFO L87 Difference]: Start difference. First operand 258 states and 351 transitions. Second operand has 8 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-28 03:26:24,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:26:24,496 INFO L93 Difference]: Finished difference Result 410 states and 538 transitions. [2024-11-28 03:26:24,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 03:26:24,497 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 39 [2024-11-28 03:26:24,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:26:24,500 INFO L225 Difference]: With dead ends: 410 [2024-11-28 03:26:24,500 INFO L226 Difference]: Without dead ends: 407 [2024-11-28 03:26:24,501 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2024-11-28 03:26:24,503 INFO L435 NwaCegarLoop]: 90 mSDtfsCounter, 541 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 549 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:26:24,505 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [549 Valid, 423 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 03:26:24,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2024-11-28 03:26:24,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 342. [2024-11-28 03:26:24,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 261 states have (on average 1.7049808429118773) internal successors, (445), 309 states have internal predecessors, (445), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-28 03:26:24,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 505 transitions. [2024-11-28 03:26:24,567 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 505 transitions. Word has length 39 [2024-11-28 03:26:24,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:26:24,568 INFO L471 AbstractCegarLoop]: Abstraction has 342 states and 505 transitions. [2024-11-28 03:26:24,568 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-28 03:26:24,568 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 505 transitions. [2024-11-28 03:26:24,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-28 03:26:24,569 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:26:24,569 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:26:24,582 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-28 03:26:24,774 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-28 03:26:24,774 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 03:26:24,774 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:26:24,774 INFO L85 PathProgramCache]: Analyzing trace with hash 43799484, now seen corresponding path program 1 times [2024-11-28 03:26:24,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:26:24,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795728208] [2024-11-28 03:26:24,775 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:26:24,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:26:24,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:26:24,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [360668700] [2024-11-28 03:26:24,792 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:26:24,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:26:24,793 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:26:24,796 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:26:24,802 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-28 03:26:24,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:26:24,856 INFO L256 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-28 03:26:24,858 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:26:25,160 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-28 03:26:25,160 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:26:25,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:26:25,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795728208] [2024-11-28 03:26:25,467 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:26:25,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [360668700] [2024-11-28 03:26:25,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [360668700] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:26:25,468 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:26:25,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-28 03:26:25,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482694663] [2024-11-28 03:26:25,468 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 03:26:25,468 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 03:26:25,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:26:25,469 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 03:26:25,469 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2024-11-28 03:26:25,469 INFO L87 Difference]: Start difference. First operand 342 states and 505 transitions. Second operand has 9 states, 8 states have (on average 3.25) internal successors, (26), 9 states have internal predecessors, (26), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-28 03:26:26,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:26:26,641 INFO L93 Difference]: Finished difference Result 463 states and 649 transitions. [2024-11-28 03:26:26,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 03:26:26,642 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 9 states have internal predecessors, (26), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 40 [2024-11-28 03:26:26,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:26:26,644 INFO L225 Difference]: With dead ends: 463 [2024-11-28 03:26:26,645 INFO L226 Difference]: Without dead ends: 462 [2024-11-28 03:26:26,646 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2024-11-28 03:26:26,647 INFO L435 NwaCegarLoop]: 112 mSDtfsCounter, 313 mSDsluCounter, 495 mSDsCounter, 0 mSdLazyCounter, 568 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 321 SdHoareTripleChecker+Valid, 607 SdHoareTripleChecker+Invalid, 584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 568 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:26:26,647 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [321 Valid, 607 Invalid, 584 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 568 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 03:26:26,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 462 states. [2024-11-28 03:26:26,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 462 to 416. [2024-11-28 03:26:26,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 416 states, 326 states have (on average 1.7239263803680982) internal successors, (562), 374 states have internal predecessors, (562), 39 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-28 03:26:26,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 416 states and 640 transitions. [2024-11-28 03:26:26,720 INFO L78 Accepts]: Start accepts. Automaton has 416 states and 640 transitions. Word has length 40 [2024-11-28 03:26:26,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:26:26,720 INFO L471 AbstractCegarLoop]: Abstraction has 416 states and 640 transitions. [2024-11-28 03:26:26,720 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 9 states have internal predecessors, (26), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-28 03:26:26,721 INFO L276 IsEmpty]: Start isEmpty. Operand 416 states and 640 transitions. [2024-11-28 03:26:26,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-28 03:26:26,721 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:26:26,722 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:26:26,733 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-11-28 03:26:26,922 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-28 03:26:26,922 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 03:26:26,923 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:26:26,923 INFO L85 PathProgramCache]: Analyzing trace with hash 1358091922, now seen corresponding path program 1 times [2024-11-28 03:26:26,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:26:26,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459052343] [2024-11-28 03:26:26,923 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:26:26,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:26:26,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:26:27,066 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 03:26:27,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:26:27,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459052343] [2024-11-28 03:26:27,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459052343] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:26:27,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1016013048] [2024-11-28 03:26:27,067 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:26:27,068 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:26:27,068 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:26:27,070 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:26:27,075 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-28 03:26:27,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:26:27,142 INFO L256 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 03:26:27,143 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:26:27,207 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 03:26:27,207 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:26:27,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1016013048] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:26:27,208 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:26:27,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9 [2024-11-28 03:26:27,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017757906] [2024-11-28 03:26:27,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:26:27,209 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:26:27,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:26:27,210 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:26:27,211 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:26:27,211 INFO L87 Difference]: Start difference. First operand 416 states and 640 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 03:26:27,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:26:27,608 INFO L93 Difference]: Finished difference Result 600 states and 841 transitions. [2024-11-28 03:26:27,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:26:27,609 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 41 [2024-11-28 03:26:27,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:26:27,612 INFO L225 Difference]: With dead ends: 600 [2024-11-28 03:26:27,612 INFO L226 Difference]: Without dead ends: 437 [2024-11-28 03:26:27,614 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-28 03:26:27,614 INFO L435 NwaCegarLoop]: 166 mSDtfsCounter, 154 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 531 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:26:27,615 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 531 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 03:26:27,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2024-11-28 03:26:27,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 403. [2024-11-28 03:26:27,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 403 states, 314 states have (on average 1.7229299363057324) internal successors, (541), 361 states have internal predecessors, (541), 39 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-28 03:26:27,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 619 transitions. [2024-11-28 03:26:27,681 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 619 transitions. Word has length 41 [2024-11-28 03:26:27,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:26:27,681 INFO L471 AbstractCegarLoop]: Abstraction has 403 states and 619 transitions. [2024-11-28 03:26:27,681 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 03:26:27,681 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 619 transitions. [2024-11-28 03:26:27,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-28 03:26:27,682 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:26:27,682 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:26:27,695 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-28 03:26:27,886 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-28 03:26:27,887 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 03:26:27,887 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:26:27,887 INFO L85 PathProgramCache]: Analyzing trace with hash 1357784084, now seen corresponding path program 1 times [2024-11-28 03:26:27,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:26:27,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560447580] [2024-11-28 03:26:27,888 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:26:27,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:26:27,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:26:27,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1627593816] [2024-11-28 03:26:27,915 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:26:27,915 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:26:27,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:26:27,922 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:26:27,924 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-28 03:26:27,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:26:27,985 INFO L256 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-28 03:26:27,987 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:26:28,288 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-28 03:26:28,288 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:26:29,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:26:29,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560447580] [2024-11-28 03:26:29,294 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:26:29,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1627593816] [2024-11-28 03:26:29,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1627593816] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:26:29,294 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:26:29,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-28 03:26:29,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029751254] [2024-11-28 03:26:29,295 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 03:26:29,295 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 03:26:29,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:26:29,296 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 03:26:29,296 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2024-11-28 03:26:29,296 INFO L87 Difference]: Start difference. First operand 403 states and 619 transitions. Second operand has 9 states, 8 states have (on average 3.375) internal successors, (27), 9 states have internal predecessors, (27), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-28 03:26:30,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:26:30,195 INFO L93 Difference]: Finished difference Result 449 states and 624 transitions. [2024-11-28 03:26:30,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 03:26:30,196 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.375) internal successors, (27), 9 states have internal predecessors, (27), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 41 [2024-11-28 03:26:30,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:26:30,199 INFO L225 Difference]: With dead ends: 449 [2024-11-28 03:26:30,199 INFO L226 Difference]: Without dead ends: 448 [2024-11-28 03:26:30,200 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2024-11-28 03:26:30,201 INFO L435 NwaCegarLoop]: 109 mSDtfsCounter, 306 mSDsluCounter, 513 mSDsCounter, 0 mSdLazyCounter, 590 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 314 SdHoareTripleChecker+Valid, 622 SdHoareTripleChecker+Invalid, 606 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 590 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 03:26:30,201 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [314 Valid, 622 Invalid, 606 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 590 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 03:26:30,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2024-11-28 03:26:30,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 403. [2024-11-28 03:26:30,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 403 states, 314 states have (on average 1.713375796178344) internal successors, (538), 361 states have internal predecessors, (538), 39 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-28 03:26:30,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 616 transitions. [2024-11-28 03:26:30,273 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 616 transitions. Word has length 41 [2024-11-28 03:26:30,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:26:30,273 INFO L471 AbstractCegarLoop]: Abstraction has 403 states and 616 transitions. [2024-11-28 03:26:30,274 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.375) internal successors, (27), 9 states have internal predecessors, (27), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-28 03:26:30,274 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 616 transitions. [2024-11-28 03:26:30,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-28 03:26:30,274 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:26:30,275 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:26:30,286 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-28 03:26:30,478 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:26:30,479 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 03:26:30,479 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:26:30,479 INFO L85 PathProgramCache]: Analyzing trace with hash -1977530268, now seen corresponding path program 1 times [2024-11-28 03:26:30,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:26:30,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064826571] [2024-11-28 03:26:30,480 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:26:30,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:26:30,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:26:30,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [381779188] [2024-11-28 03:26:30,495 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:26:30,495 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:26:30,495 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:26:30,499 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:26:30,502 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-28 03:26:30,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:26:30,555 INFO L256 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 03:26:30,556 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:26:30,601 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 03:26:30,601 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:26:30,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:26:30,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064826571] [2024-11-28 03:26:30,602 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:26:30,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [381779188] [2024-11-28 03:26:30,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [381779188] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:26:30,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:26:30,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:26:30,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178931533] [2024-11-28 03:26:30,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:26:30,603 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:26:30,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:26:30,603 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:26:30,603 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:26:30,603 INFO L87 Difference]: Start difference. First operand 403 states and 616 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, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:26:30,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:26:30,912 INFO L93 Difference]: Finished difference Result 430 states and 627 transitions. [2024-11-28 03:26:30,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:26:30,913 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, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 42 [2024-11-28 03:26:30,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:26:30,916 INFO L225 Difference]: With dead ends: 430 [2024-11-28 03:26:30,916 INFO L226 Difference]: Without dead ends: 429 [2024-11-28 03:26:30,917 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 39 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 03:26:30,917 INFO L435 NwaCegarLoop]: 125 mSDtfsCounter, 55 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:26:30,918 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 291 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 03:26:30,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2024-11-28 03:26:30,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 403. [2024-11-28 03:26:30,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 403 states, 314 states have (on average 1.7070063694267517) internal successors, (536), 361 states have internal predecessors, (536), 39 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-28 03:26:30,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 614 transitions. [2024-11-28 03:26:30,990 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 614 transitions. Word has length 42 [2024-11-28 03:26:30,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:26:30,991 INFO L471 AbstractCegarLoop]: Abstraction has 403 states and 614 transitions. [2024-11-28 03:26:30,991 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, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:26:30,991 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 614 transitions. [2024-11-28 03:26:30,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-28 03:26:30,992 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:26:30,992 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:26:31,004 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-28 03:26:31,195 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:26:31,196 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 03:26:31,196 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:26:31,196 INFO L85 PathProgramCache]: Analyzing trace with hash -858366274, now seen corresponding path program 1 times [2024-11-28 03:26:31,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:26:31,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982639802] [2024-11-28 03:26:31,197 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:26:31,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:26:31,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:26:31,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1805426168] [2024-11-28 03:26:31,219 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:26:31,219 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:26:31,219 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:26:31,225 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:26:31,229 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-28 03:26:31,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:26:31,281 INFO L256 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-28 03:26:31,282 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:26:31,497 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-28 03:26:31,497 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:26:35,953 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-28 03:26:35,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:26:35,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982639802] [2024-11-28 03:26:35,953 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:26:35,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1805426168] [2024-11-28 03:26:35,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1805426168] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:26:35,954 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 03:26:35,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2024-11-28 03:26:35,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484402096] [2024-11-28 03:26:35,954 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 03:26:35,955 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-28 03:26:35,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:26:35,955 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-28 03:26:35,956 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=163, Unknown=1, NotChecked=0, Total=210 [2024-11-28 03:26:35,956 INFO L87 Difference]: Start difference. First operand 403 states and 614 transitions. Second operand has 15 states, 14 states have (on average 3.5) internal successors, (49), 13 states have internal predecessors, (49), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-28 03:26:37,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:26:37,776 INFO L93 Difference]: Finished difference Result 456 states and 626 transitions. [2024-11-28 03:26:37,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 03:26:37,777 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 3.5) internal successors, (49), 13 states have internal predecessors, (49), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) Word has length 42 [2024-11-28 03:26:37,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:26:37,779 INFO L225 Difference]: With dead ends: 456 [2024-11-28 03:26:37,780 INFO L226 Difference]: Without dead ends: 451 [2024-11-28 03:26:37,780 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=71, Invalid=234, Unknown=1, NotChecked=0, Total=306 [2024-11-28 03:26:37,781 INFO L435 NwaCegarLoop]: 114 mSDtfsCounter, 370 mSDsluCounter, 750 mSDsCounter, 0 mSdLazyCounter, 971 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 381 SdHoareTripleChecker+Valid, 864 SdHoareTripleChecker+Invalid, 993 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 971 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-28 03:26:37,782 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [381 Valid, 864 Invalid, 993 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 971 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-28 03:26:37,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2024-11-28 03:26:37,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 329. [2024-11-28 03:26:37,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 249 states have (on average 1.6546184738955823) internal successors, (412), 296 states have internal predecessors, (412), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-28 03:26:37,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 472 transitions. [2024-11-28 03:26:37,824 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 472 transitions. Word has length 42 [2024-11-28 03:26:37,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:26:37,824 INFO L471 AbstractCegarLoop]: Abstraction has 329 states and 472 transitions. [2024-11-28 03:26:37,824 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 3.5) internal successors, (49), 13 states have internal predecessors, (49), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-28 03:26:37,824 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 472 transitions. [2024-11-28 03:26:37,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-28 03:26:37,825 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:26:37,825 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:26:37,837 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2024-11-28 03:26:38,026 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:26:38,027 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 03:26:38,027 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:26:38,027 INFO L85 PathProgramCache]: Analyzing trace with hash -1173896067, now seen corresponding path program 1 times [2024-11-28 03:26:38,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:26:38,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604247084] [2024-11-28 03:26:38,028 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:26:38,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:26:38,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:26:38,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1219348920] [2024-11-28 03:26:38,045 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:26:38,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:26:38,045 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:26:38,051 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:26:38,052 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-28 03:26:38,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:26:38,103 INFO L256 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 03:26:38,105 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:26:38,189 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 03:26:38,189 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:26:38,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:26:38,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604247084] [2024-11-28 03:26:38,190 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:26:38,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1219348920] [2024-11-28 03:26:38,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1219348920] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:26:38,190 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:26:38,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:26:38,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696621861] [2024-11-28 03:26:38,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:26:38,191 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:26:38,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:26:38,192 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:26:38,192 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:26:38,192 INFO L87 Difference]: Start difference. First operand 329 states and 472 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:26:38,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:26:38,548 INFO L93 Difference]: Finished difference Result 357 states and 484 transitions. [2024-11-28 03:26:38,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:26:38,549 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 43 [2024-11-28 03:26:38,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:26:38,551 INFO L225 Difference]: With dead ends: 357 [2024-11-28 03:26:38,552 INFO L226 Difference]: Without dead ends: 356 [2024-11-28 03:26:38,552 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 40 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 03:26:38,556 INFO L435 NwaCegarLoop]: 127 mSDtfsCounter, 90 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:26:38,556 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 229 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 03:26:38,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2024-11-28 03:26:38,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 329. [2024-11-28 03:26:38,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 249 states have (on average 1.6465863453815262) internal successors, (410), 296 states have internal predecessors, (410), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-28 03:26:38,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 470 transitions. [2024-11-28 03:26:38,620 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 470 transitions. Word has length 43 [2024-11-28 03:26:38,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:26:38,620 INFO L471 AbstractCegarLoop]: Abstraction has 329 states and 470 transitions. [2024-11-28 03:26:38,622 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:26:38,622 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 470 transitions. [2024-11-28 03:26:38,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-28 03:26:38,623 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:26:38,623 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:26:38,636 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2024-11-28 03:26:38,826 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:26:38,827 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 03:26:38,827 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:26:38,827 INFO L85 PathProgramCache]: Analyzing trace with hash -839550634, now seen corresponding path program 1 times [2024-11-28 03:26:38,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:26:38,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465724069] [2024-11-28 03:26:38,827 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:26:38,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:26:38,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:26:38,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1607615619] [2024-11-28 03:26:38,843 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:26:38,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:26:38,843 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:26:38,846 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:26:38,850 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-28 03:26:38,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:26:38,908 INFO L256 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-28 03:26:38,909 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:26:39,296 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-28 03:26:39,297 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:26:40,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:26:40,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465724069] [2024-11-28 03:26:40,597 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:26:40,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1607615619] [2024-11-28 03:26:40,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1607615619] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:26:40,597 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:26:40,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-28 03:26:40,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416025449] [2024-11-28 03:26:40,597 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 03:26:40,598 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 03:26:40,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:26:40,598 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 03:26:40,599 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=208, Unknown=0, NotChecked=0, Total=272 [2024-11-28 03:26:40,599 INFO L87 Difference]: Start difference. First operand 329 states and 470 transitions. Second operand has 11 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 9 states have internal predecessors, (29), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-28 03:26:41,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:26:41,599 INFO L93 Difference]: Finished difference Result 439 states and 603 transitions. [2024-11-28 03:26:41,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 03:26:41,600 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 9 states have internal predecessors, (29), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 43 [2024-11-28 03:26:41,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:26:41,603 INFO L225 Difference]: With dead ends: 439 [2024-11-28 03:26:41,603 INFO L226 Difference]: Without dead ends: 438 [2024-11-28 03:26:41,604 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=97, Invalid=283, Unknown=0, NotChecked=0, Total=380 [2024-11-28 03:26:41,604 INFO L435 NwaCegarLoop]: 95 mSDtfsCounter, 509 mSDsluCounter, 393 mSDsCounter, 0 mSdLazyCounter, 713 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 521 SdHoareTripleChecker+Valid, 488 SdHoareTripleChecker+Invalid, 739 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 713 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 03:26:41,605 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [521 Valid, 488 Invalid, 739 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 713 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 03:26:41,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 438 states. [2024-11-28 03:26:41,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 438 to 403. [2024-11-28 03:26:41,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 403 states, 314 states have (on average 1.6464968152866242) internal successors, (517), 361 states have internal predecessors, (517), 39 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-28 03:26:41,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 595 transitions. [2024-11-28 03:26:41,677 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 595 transitions. Word has length 43 [2024-11-28 03:26:41,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:26:41,678 INFO L471 AbstractCegarLoop]: Abstraction has 403 states and 595 transitions. [2024-11-28 03:26:41,678 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 9 states have internal predecessors, (29), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-28 03:26:41,678 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 595 transitions. [2024-11-28 03:26:41,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-28 03:26:41,679 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:26:41,679 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:26:41,690 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2024-11-28 03:26:41,879 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:26:41,880 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 03:26:41,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:26:41,880 INFO L85 PathProgramCache]: Analyzing trace with hash -449944359, now seen corresponding path program 1 times [2024-11-28 03:26:41,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:26:41,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950372426] [2024-11-28 03:26:41,880 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:26:41,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:26:41,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:26:41,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1067955332] [2024-11-28 03:26:41,896 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:26:41,897 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:26:41,897 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:26:41,901 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:26:41,903 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-28 03:26:41,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:26:41,973 INFO L256 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-28 03:26:41,976 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:26:42,304 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-28 03:26:42,305 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:26:50,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:26:50,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950372426] [2024-11-28 03:26:50,764 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:26:50,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1067955332] [2024-11-28 03:26:50,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1067955332] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:26:50,764 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:26:50,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-28 03:26:50,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004988924] [2024-11-28 03:26:50,765 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 03:26:50,765 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 03:26:50,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:26:50,766 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 03:26:50,766 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=213, Unknown=2, NotChecked=0, Total=272 [2024-11-28 03:26:50,766 INFO L87 Difference]: Start difference. First operand 403 states and 595 transitions. Second operand has 11 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 9 states have internal predecessors, (33), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-28 03:26:51,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:26:51,882 INFO L93 Difference]: Finished difference Result 445 states and 608 transitions. [2024-11-28 03:26:51,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 03:26:51,883 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 9 states have internal predecessors, (33), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) Word has length 49 [2024-11-28 03:26:51,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:26:51,886 INFO L225 Difference]: With dead ends: 445 [2024-11-28 03:26:51,886 INFO L226 Difference]: Without dead ends: 444 [2024-11-28 03:26:51,887 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 8.5s TimeCoverageRelationStatistics Valid=108, Invalid=352, Unknown=2, NotChecked=0, Total=462 [2024-11-28 03:26:51,888 INFO L435 NwaCegarLoop]: 90 mSDtfsCounter, 626 mSDsluCounter, 496 mSDsCounter, 0 mSdLazyCounter, 888 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 630 SdHoareTripleChecker+Valid, 586 SdHoareTripleChecker+Invalid, 927 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 888 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 03:26:51,888 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [630 Valid, 586 Invalid, 927 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 888 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 03:26:51,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 444 states. [2024-11-28 03:26:51,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 444 to 403. [2024-11-28 03:26:51,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 403 states, 314 states have (on average 1.6369426751592357) internal successors, (514), 361 states have internal predecessors, (514), 39 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-28 03:26:51,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 592 transitions. [2024-11-28 03:26:51,967 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 592 transitions. Word has length 49 [2024-11-28 03:26:51,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:26:51,969 INFO L471 AbstractCegarLoop]: Abstraction has 403 states and 592 transitions. [2024-11-28 03:26:51,969 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 9 states have internal predecessors, (33), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-28 03:26:51,969 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 592 transitions. [2024-11-28 03:26:51,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-28 03:26:51,971 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:26:51,972 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:26:51,988 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2024-11-28 03:26:52,173 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:26:52,174 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 03:26:52,174 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:26:52,175 INFO L85 PathProgramCache]: Analyzing trace with hash -1063373152, now seen corresponding path program 1 times [2024-11-28 03:26:52,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:26:52,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515743011] [2024-11-28 03:26:52,175 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:26:52,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:26:52,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:26:52,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [915437603] [2024-11-28 03:26:52,194 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:26:52,194 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:26:52,194 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:26:52,198 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:26:52,200 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-28 03:26:52,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:26:52,253 INFO L256 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-28 03:26:52,255 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:26:52,562 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-28 03:26:52,562 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:26:57,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:26:57,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515743011] [2024-11-28 03:26:57,469 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:26:57,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [915437603] [2024-11-28 03:26:57,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [915437603] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:26:57,469 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:26:57,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-28 03:26:57,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082546881] [2024-11-28 03:26:57,469 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 03:26:57,470 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 03:26:57,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:26:57,470 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 03:26:57,470 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=219, Unknown=1, NotChecked=0, Total=272 [2024-11-28 03:26:57,470 INFO L87 Difference]: Start difference. First operand 403 states and 592 transitions. Second operand has 11 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 9 states have internal predecessors, (34), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-28 03:26:58,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:26:58,504 INFO L93 Difference]: Finished difference Result 445 states and 605 transitions. [2024-11-28 03:26:58,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 03:26:58,504 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 9 states have internal predecessors, (34), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) Word has length 50 [2024-11-28 03:26:58,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:26:58,507 INFO L225 Difference]: With dead ends: 445 [2024-11-28 03:26:58,507 INFO L226 Difference]: Without dead ends: 444 [2024-11-28 03:26:58,507 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=108, Invalid=353, Unknown=1, NotChecked=0, Total=462 [2024-11-28 03:26:58,508 INFO L435 NwaCegarLoop]: 90 mSDtfsCounter, 635 mSDsluCounter, 496 mSDsCounter, 0 mSdLazyCounter, 861 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 639 SdHoareTripleChecker+Valid, 586 SdHoareTripleChecker+Invalid, 903 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 861 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 03:26:58,508 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [639 Valid, 586 Invalid, 903 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 861 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 03:26:58,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 444 states. [2024-11-28 03:26:58,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 444 to 403. [2024-11-28 03:26:58,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 403 states, 314 states have (on average 1.627388535031847) internal successors, (511), 361 states have internal predecessors, (511), 39 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-28 03:26:58,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 589 transitions. [2024-11-28 03:26:58,568 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 589 transitions. Word has length 50 [2024-11-28 03:26:58,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:26:58,574 INFO L471 AbstractCegarLoop]: Abstraction has 403 states and 589 transitions. [2024-11-28 03:26:58,575 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 9 states have internal predecessors, (34), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-28 03:26:58,575 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 589 transitions. [2024-11-28 03:26:58,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-28 03:26:58,575 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:26:58,575 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:26:58,586 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2024-11-28 03:26:58,776 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-11-28 03:26:58,776 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 03:26:58,776 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:26:58,777 INFO L85 PathProgramCache]: Analyzing trace with hash 2146453195, now seen corresponding path program 1 times [2024-11-28 03:26:58,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:26:58,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233938575] [2024-11-28 03:26:58,777 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:26:58,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:26:58,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:26:58,991 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-28 03:26:58,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:26:58,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233938575] [2024-11-28 03:26:58,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233938575] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:26:58,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1046150216] [2024-11-28 03:26:58,991 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:26:58,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:26:58,992 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:26:58,993 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:26:58,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-28 03:26:59,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:26:59,035 INFO L256 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 03:26:59,036 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:26:59,186 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-28 03:26:59,186 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:26:59,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1046150216] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:26:59,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:26:59,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 11 [2024-11-28 03:26:59,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653301462] [2024-11-28 03:26:59,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:26:59,187 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:26:59,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:26:59,188 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:26:59,188 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-11-28 03:26:59,189 INFO L87 Difference]: Start difference. First operand 403 states and 589 transitions. Second operand has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-28 03:26:59,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:26:59,642 INFO L93 Difference]: Finished difference Result 430 states and 593 transitions. [2024-11-28 03:26:59,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:26:59,643 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 51 [2024-11-28 03:26:59,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:26:59,645 INFO L225 Difference]: With dead ends: 430 [2024-11-28 03:26:59,645 INFO L226 Difference]: Without dead ends: 429 [2024-11-28 03:26:59,645 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2024-11-28 03:26:59,646 INFO L435 NwaCegarLoop]: 80 mSDtfsCounter, 250 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 254 SdHoareTripleChecker+Valid, 265 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:26:59,646 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [254 Valid, 265 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 03:26:59,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2024-11-28 03:26:59,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 403. [2024-11-28 03:26:59,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 403 states, 314 states have (on average 1.624203821656051) internal successors, (510), 361 states have internal predecessors, (510), 39 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-28 03:26:59,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 588 transitions. [2024-11-28 03:26:59,705 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 588 transitions. Word has length 51 [2024-11-28 03:26:59,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:26:59,706 INFO L471 AbstractCegarLoop]: Abstraction has 403 states and 588 transitions. [2024-11-28 03:26:59,706 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-28 03:26:59,706 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 588 transitions. [2024-11-28 03:26:59,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-28 03:26:59,707 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:26:59,707 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:26:59,718 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2024-11-28 03:26:59,908 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-28 03:26:59,908 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 03:26:59,908 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:26:59,908 INFO L85 PathProgramCache]: Analyzing trace with hash 1395170747, now seen corresponding path program 1 times [2024-11-28 03:26:59,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:26:59,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237622442] [2024-11-28 03:26:59,909 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:26:59,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:26:59,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:26:59,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1043218110] [2024-11-28 03:26:59,927 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:26:59,927 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:26:59,927 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:26:59,929 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:26:59,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-11-28 03:26:59,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:26:59,983 INFO L256 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-28 03:26:59,985 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:27:00,300 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-28 03:27:00,300 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:27:00,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:27:00,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237622442] [2024-11-28 03:27:00,719 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:27:00,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1043218110] [2024-11-28 03:27:00,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1043218110] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:27:00,719 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:27:00,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-28 03:27:00,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057584502] [2024-11-28 03:27:00,719 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 03:27:00,719 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 03:27:00,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:27:00,720 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 03:27:00,720 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2024-11-28 03:27:00,720 INFO L87 Difference]: Start difference. First operand 403 states and 588 transitions. Second operand has 11 states, 9 states have (on average 3.888888888888889) internal successors, (35), 9 states have internal predecessors, (35), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-28 03:27:01,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:27:01,792 INFO L93 Difference]: Finished difference Result 451 states and 609 transitions. [2024-11-28 03:27:01,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 03:27:01,793 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 3.888888888888889) internal successors, (35), 9 states have internal predecessors, (35), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) Word has length 51 [2024-11-28 03:27:01,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:27:01,795 INFO L225 Difference]: With dead ends: 451 [2024-11-28 03:27:01,796 INFO L226 Difference]: Without dead ends: 450 [2024-11-28 03:27:01,796 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=112, Invalid=394, Unknown=0, NotChecked=0, Total=506 [2024-11-28 03:27:01,797 INFO L435 NwaCegarLoop]: 93 mSDtfsCounter, 579 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 908 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 583 SdHoareTripleChecker+Valid, 438 SdHoareTripleChecker+Invalid, 946 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 908 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 03:27:01,798 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [583 Valid, 438 Invalid, 946 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 908 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 03:27:01,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2024-11-28 03:27:01,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 393. [2024-11-28 03:27:01,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 305 states have (on average 1.639344262295082) internal successors, (500), 352 states have internal predecessors, (500), 38 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-28 03:27:01,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 576 transitions. [2024-11-28 03:27:01,859 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 576 transitions. Word has length 51 [2024-11-28 03:27:01,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:27:01,859 INFO L471 AbstractCegarLoop]: Abstraction has 393 states and 576 transitions. [2024-11-28 03:27:01,859 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 3.888888888888889) internal successors, (35), 9 states have internal predecessors, (35), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-28 03:27:01,859 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 576 transitions. [2024-11-28 03:27:01,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-28 03:27:01,860 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:27:01,860 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:27:01,872 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2024-11-28 03:27:02,064 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-28 03:27:02,065 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 03:27:02,065 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:27:02,066 INFO L85 PathProgramCache]: Analyzing trace with hash 2115539711, now seen corresponding path program 1 times [2024-11-28 03:27:02,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:27:02,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832066123] [2024-11-28 03:27:02,066 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:27:02,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:27:02,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:27:02,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1944948364] [2024-11-28 03:27:02,079 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:27:02,079 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:27:02,080 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:27:02,082 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:27:02,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-11-28 03:27:02,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:27:02,141 INFO L256 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 03:27:02,143 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:27:02,272 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-28 03:27:02,272 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:27:02,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:27:02,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832066123] [2024-11-28 03:27:02,272 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:27:02,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1944948364] [2024-11-28 03:27:02,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1944948364] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:27:02,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:27:02,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:27:02,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784815501] [2024-11-28 03:27:02,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:27:02,273 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:27:02,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:27:02,273 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:27:02,273 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:27:02,274 INFO L87 Difference]: Start difference. First operand 393 states and 576 transitions. Second operand has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-28 03:27:02,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:27:02,660 INFO L93 Difference]: Finished difference Result 420 states and 580 transitions. [2024-11-28 03:27:02,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:27:02,660 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 52 [2024-11-28 03:27:02,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:27:02,663 INFO L225 Difference]: With dead ends: 420 [2024-11-28 03:27:02,663 INFO L226 Difference]: Without dead ends: 419 [2024-11-28 03:27:02,664 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:27:02,664 INFO L435 NwaCegarLoop]: 82 mSDtfsCounter, 247 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:27:02,665 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [251 Valid, 267 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 03:27:02,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states. [2024-11-28 03:27:02,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 393. [2024-11-28 03:27:02,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 305 states have (on average 1.6360655737704919) internal successors, (499), 352 states have internal predecessors, (499), 38 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-28 03:27:02,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 575 transitions. [2024-11-28 03:27:02,728 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 575 transitions. Word has length 52 [2024-11-28 03:27:02,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:27:02,729 INFO L471 AbstractCegarLoop]: Abstraction has 393 states and 575 transitions. [2024-11-28 03:27:02,729 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-28 03:27:02,729 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 575 transitions. [2024-11-28 03:27:02,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-28 03:27:02,730 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:27:02,730 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:27:02,742 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2024-11-28 03:27:02,934 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:27:02,935 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 03:27:02,935 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:27:02,935 INFO L85 PathProgramCache]: Analyzing trace with hash 300620290, now seen corresponding path program 1 times [2024-11-28 03:27:02,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:27:02,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076456471] [2024-11-28 03:27:02,935 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:27:02,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:27:02,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:27:02,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1770408235] [2024-11-28 03:27:02,952 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:27:02,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:27:02,952 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:27:02,954 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:27:02,958 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-11-28 03:27:03,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:27:03,008 INFO L256 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-28 03:27:03,010 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:27:03,277 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-28 03:27:03,277 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:27:11,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:27:11,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076456471] [2024-11-28 03:27:11,989 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:27:11,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1770408235] [2024-11-28 03:27:11,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1770408235] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:27:11,989 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:27:11,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-28 03:27:11,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23028117] [2024-11-28 03:27:11,989 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 03:27:11,990 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 03:27:11,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:27:11,990 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 03:27:11,990 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=213, Unknown=2, NotChecked=0, Total=272 [2024-11-28 03:27:11,990 INFO L87 Difference]: Start difference. First operand 393 states and 575 transitions. Second operand has 11 states, 9 states have (on average 4.0) internal successors, (36), 9 states have internal predecessors, (36), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-28 03:27:13,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:27:13,079 INFO L93 Difference]: Finished difference Result 441 states and 596 transitions. [2024-11-28 03:27:13,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 03:27:13,080 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 4.0) internal successors, (36), 9 states have internal predecessors, (36), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) Word has length 52 [2024-11-28 03:27:13,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:27:13,081 INFO L225 Difference]: With dead ends: 441 [2024-11-28 03:27:13,081 INFO L226 Difference]: Without dead ends: 440 [2024-11-28 03:27:13,082 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 8.6s TimeCoverageRelationStatistics Valid=112, Invalid=392, Unknown=2, NotChecked=0, Total=506 [2024-11-28 03:27:13,082 INFO L435 NwaCegarLoop]: 93 mSDtfsCounter, 383 mSDsluCounter, 381 mSDsCounter, 0 mSdLazyCounter, 944 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 387 SdHoareTripleChecker+Valid, 474 SdHoareTripleChecker+Invalid, 968 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 944 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 03:27:13,083 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [387 Valid, 474 Invalid, 968 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 944 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 03:27:13,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2024-11-28 03:27:13,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 393. [2024-11-28 03:27:13,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 305 states have (on average 1.6295081967213114) internal successors, (497), 352 states have internal predecessors, (497), 38 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-28 03:27:13,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 573 transitions. [2024-11-28 03:27:13,144 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 573 transitions. Word has length 52 [2024-11-28 03:27:13,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:27:13,144 INFO L471 AbstractCegarLoop]: Abstraction has 393 states and 573 transitions. [2024-11-28 03:27:13,144 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 4.0) internal successors, (36), 9 states have internal predecessors, (36), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-28 03:27:13,145 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 573 transitions. [2024-11-28 03:27:13,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-28 03:27:13,146 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:27:13,147 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:27:13,159 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2024-11-28 03:27:13,351 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-28 03:27:13,352 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 03:27:13,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:27:13,352 INFO L85 PathProgramCache]: Analyzing trace with hash 729294493, now seen corresponding path program 1 times [2024-11-28 03:27:13,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:27:13,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121191921] [2024-11-28 03:27:13,352 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:27:13,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:27:13,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:27:13,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [244793837] [2024-11-28 03:27:13,371 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:27:13,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:27:13,371 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:27:13,378 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:27:13,381 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-11-28 03:27:13,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:27:13,433 INFO L256 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-11-28 03:27:13,435 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:27:13,914 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 6 proven. 5 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-28 03:27:13,915 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:27:14,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:27:14,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121191921] [2024-11-28 03:27:14,032 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:27:14,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [244793837] [2024-11-28 03:27:14,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [244793837] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:27:14,032 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:27:14,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-11-28 03:27:14,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018035660] [2024-11-28 03:27:14,032 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 03:27:14,033 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 03:27:14,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:27:14,034 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 03:27:14,034 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2024-11-28 03:27:14,034 INFO L87 Difference]: Start difference. First operand 393 states and 573 transitions. Second operand has 13 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 12 states have internal predecessors, (37), 3 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-28 03:27:15,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:27:15,023 INFO L93 Difference]: Finished difference Result 439 states and 592 transitions. [2024-11-28 03:27:15,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 03:27:15,023 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 12 states have internal predecessors, (37), 3 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 53 [2024-11-28 03:27:15,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:27:15,025 INFO L225 Difference]: With dead ends: 439 [2024-11-28 03:27:15,025 INFO L226 Difference]: Without dead ends: 438 [2024-11-28 03:27:15,025 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=48, Invalid=224, Unknown=0, NotChecked=0, Total=272 [2024-11-28 03:27:15,026 INFO L435 NwaCegarLoop]: 87 mSDtfsCounter, 324 mSDsluCounter, 559 mSDsCounter, 0 mSdLazyCounter, 1181 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 336 SdHoareTripleChecker+Valid, 646 SdHoareTripleChecker+Invalid, 1197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 03:27:15,026 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [336 Valid, 646 Invalid, 1197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1181 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 03:27:15,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 438 states. [2024-11-28 03:27:15,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 438 to 393. [2024-11-28 03:27:15,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 305 states have (on average 1.6229508196721312) internal successors, (495), 352 states have internal predecessors, (495), 38 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-28 03:27:15,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 571 transitions. [2024-11-28 03:27:15,082 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 571 transitions. Word has length 53 [2024-11-28 03:27:15,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:27:15,082 INFO L471 AbstractCegarLoop]: Abstraction has 393 states and 571 transitions. [2024-11-28 03:27:15,082 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 12 states have internal predecessors, (37), 3 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-28 03:27:15,082 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 571 transitions. [2024-11-28 03:27:15,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-28 03:27:15,083 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:27:15,083 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:27:15,092 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2024-11-28 03:27:15,283 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:27:15,284 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 03:27:15,284 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:27:15,284 INFO L85 PathProgramCache]: Analyzing trace with hash 1133292900, now seen corresponding path program 1 times [2024-11-28 03:27:15,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:27:15,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016415670] [2024-11-28 03:27:15,284 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:27:15,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:27:15,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:27:15,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [335097829] [2024-11-28 03:27:15,297 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:27:15,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:27:15,297 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:27:15,299 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:27:15,302 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-11-28 03:27:15,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:27:15,355 INFO L256 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-28 03:27:15,357 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:27:15,826 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 3 proven. 8 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-28 03:27:15,826 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:27:20,553 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 3 proven. 8 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-28 03:27:20,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:27:20,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016415670] [2024-11-28 03:27:20,554 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:27:20,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [335097829] [2024-11-28 03:27:20,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [335097829] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:27:20,554 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 03:27:20,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2024-11-28 03:27:20,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207548399] [2024-11-28 03:27:20,554 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 03:27:20,555 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-28 03:27:20,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:27:20,555 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-28 03:27:20,555 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=281, Unknown=1, NotChecked=0, Total=342 [2024-11-28 03:27:20,556 INFO L87 Difference]: Start difference. First operand 393 states and 571 transitions. Second operand has 19 states, 18 states have (on average 3.6666666666666665) internal successors, (66), 17 states have internal predecessors, (66), 5 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2024-11-28 03:27:38,871 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-28 03:27:43,107 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-28 03:27:48,199 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-28 03:27:52,540 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-28 03:27:56,575 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-28 03:28:00,694 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-28 03:28:04,802 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-28 03:28:08,853 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-28 03:28:13,020 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-28 03:28:17,131 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-28 03:28:21,180 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-28 03:28:25,217 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-28 03:28:29,251 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-28 03:28:33,449 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-28 03:28:37,850 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-28 03:28:41,954 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-28 03:28:46,496 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-28 03:28:50,203 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.53s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-28 03:28:50,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:28:50,265 INFO L93 Difference]: Finished difference Result 456 states and 610 transitions. [2024-11-28 03:28:50,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-28 03:28:50,266 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 3.6666666666666665) internal successors, (66), 17 states have internal predecessors, (66), 5 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) Word has length 54 [2024-11-28 03:28:50,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:28:50,268 INFO L225 Difference]: With dead ends: 456 [2024-11-28 03:28:50,268 INFO L226 Difference]: Without dead ends: 455 [2024-11-28 03:28:50,269 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 17.9s TimeCoverageRelationStatistics Valid=267, Invalid=989, Unknown=4, NotChecked=0, Total=1260 [2024-11-28 03:28:50,269 INFO L435 NwaCegarLoop]: 75 mSDtfsCounter, 907 mSDsluCounter, 377 mSDsCounter, 0 mSdLazyCounter, 1375 mSolverCounterSat, 101 mSolverCounterUnsat, 18 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 75.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 907 SdHoareTripleChecker+Valid, 452 SdHoareTripleChecker+Invalid, 1494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 1375 IncrementalHoareTripleChecker+Invalid, 18 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 76.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:28:50,269 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [907 Valid, 452 Invalid, 1494 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 1375 Invalid, 18 Unknown, 0 Unchecked, 76.3s Time] [2024-11-28 03:28:50,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455 states. [2024-11-28 03:28:50,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 455 to 399. [2024-11-28 03:28:50,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 399 states, 311 states have (on average 1.6109324758842443) internal successors, (501), 358 states have internal predecessors, (501), 38 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-28 03:28:50,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 577 transitions. [2024-11-28 03:28:50,344 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 577 transitions. Word has length 54 [2024-11-28 03:28:50,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:28:50,344 INFO L471 AbstractCegarLoop]: Abstraction has 399 states and 577 transitions. [2024-11-28 03:28:50,344 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 3.6666666666666665) internal successors, (66), 17 states have internal predecessors, (66), 5 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2024-11-28 03:28:50,344 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 577 transitions. [2024-11-28 03:28:50,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-28 03:28:50,345 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:28:50,345 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:28:50,355 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2024-11-28 03:28:50,549 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:28:50,550 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 03:28:50,550 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:28:50,551 INFO L85 PathProgramCache]: Analyzing trace with hash 497762000, now seen corresponding path program 1 times [2024-11-28 03:28:50,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:28:50,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977986032] [2024-11-28 03:28:50,551 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:28:50,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:28:50,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:28:50,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1762624585] [2024-11-28 03:28:50,572 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:28:50,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:28:50,574 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:28:50,576 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:28:50,579 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-11-28 03:28:50,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:28:50,631 INFO L256 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 03:28:50,633 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:28:50,789 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-28 03:28:50,789 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:28:50,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:28:50,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977986032] [2024-11-28 03:28:50,789 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:28:50,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1762624585] [2024-11-28 03:28:50,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1762624585] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:28:50,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:28:50,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:28:50,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522503272] [2024-11-28 03:28:50,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:28:50,790 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:28:50,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:28:50,790 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:28:50,790 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:28:50,791 INFO L87 Difference]: Start difference. First operand 399 states and 577 transitions. Second operand has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-28 03:28:51,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:28:51,187 INFO L93 Difference]: Finished difference Result 474 states and 665 transitions. [2024-11-28 03:28:51,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:28:51,188 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 58 [2024-11-28 03:28:51,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:28:51,190 INFO L225 Difference]: With dead ends: 474 [2024-11-28 03:28:51,190 INFO L226 Difference]: Without dead ends: 471 [2024-11-28 03:28:51,191 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:28:51,191 INFO L435 NwaCegarLoop]: 83 mSDtfsCounter, 209 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:28:51,191 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 199 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 03:28:51,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2024-11-28 03:28:51,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 453. [2024-11-28 03:28:51,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 357 states have (on average 1.5658263305322129) internal successors, (559), 404 states have internal predecessors, (559), 46 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-28 03:28:51,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 651 transitions. [2024-11-28 03:28:51,279 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 651 transitions. Word has length 58 [2024-11-28 03:28:51,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:28:51,279 INFO L471 AbstractCegarLoop]: Abstraction has 453 states and 651 transitions. [2024-11-28 03:28:51,280 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-28 03:28:51,280 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 651 transitions. [2024-11-28 03:28:51,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-28 03:28:51,280 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:28:51,280 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:28:51,290 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2024-11-28 03:28:51,484 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2024-11-28 03:28:51,485 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 03:28:51,485 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:28:51,485 INFO L85 PathProgramCache]: Analyzing trace with hash -1749247073, now seen corresponding path program 1 times [2024-11-28 03:28:51,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:28:51,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262067409] [2024-11-28 03:28:51,485 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:28:51,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:28:51,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:28:51,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1187893452] [2024-11-28 03:28:51,500 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:28:51,500 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:28:51,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:28:51,505 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:28:51,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2024-11-28 03:28:51,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:28:51,570 INFO L256 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 03:28:51,571 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:28:51,788 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-28 03:28:51,789 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:28:51,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:28:51,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262067409] [2024-11-28 03:28:51,789 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:28:51,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1187893452] [2024-11-28 03:28:51,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1187893452] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:28:51,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:28:51,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:28:51,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651582810] [2024-11-28 03:28:51,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:28:51,790 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:28:51,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:28:51,791 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:28:51,791 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:28:51,792 INFO L87 Difference]: Start difference. First operand 453 states and 651 transitions. Second operand has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-28 03:28:52,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:28:52,277 INFO L93 Difference]: Finished difference Result 472 states and 659 transitions. [2024-11-28 03:28:52,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:28:52,277 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 59 [2024-11-28 03:28:52,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:28:52,279 INFO L225 Difference]: With dead ends: 472 [2024-11-28 03:28:52,279 INFO L226 Difference]: Without dead ends: 471 [2024-11-28 03:28:52,280 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:28:52,280 INFO L435 NwaCegarLoop]: 84 mSDtfsCounter, 193 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:28:52,280 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 270 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 03:28:52,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2024-11-28 03:28:52,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 453. [2024-11-28 03:28:52,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 357 states have (on average 1.5602240896358543) internal successors, (557), 404 states have internal predecessors, (557), 46 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-28 03:28:52,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 649 transitions. [2024-11-28 03:28:52,361 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 649 transitions. Word has length 59 [2024-11-28 03:28:52,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:28:52,361 INFO L471 AbstractCegarLoop]: Abstraction has 453 states and 649 transitions. [2024-11-28 03:28:52,361 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-28 03:28:52,361 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 649 transitions. [2024-11-28 03:28:52,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-28 03:28:52,362 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:28:52,362 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:28:52,371 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2024-11-28 03:28:52,565 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2024-11-28 03:28:52,565 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 03:28:52,565 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:28:52,565 INFO L85 PathProgramCache]: Analyzing trace with hash 332224690, now seen corresponding path program 1 times [2024-11-28 03:28:52,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:28:52,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373672039] [2024-11-28 03:28:52,566 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:28:52,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:28:52,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:28:53,115 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-28 03:28:53,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:28:53,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373672039] [2024-11-28 03:28:53,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1373672039] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:28:53,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1612917807] [2024-11-28 03:28:53,116 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:28:53,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:28:53,117 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:28:53,119 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:28:53,123 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-11-28 03:28:53,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:28:53,185 INFO L256 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-28 03:28:53,187 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:28:53,533 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-28 03:28:53,533 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:28:53,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1612917807] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:28:53,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:28:53,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 17 [2024-11-28 03:28:53,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680226071] [2024-11-28 03:28:53,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:28:53,534 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 03:28:53,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:28:53,535 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 03:28:53,535 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2024-11-28 03:28:53,535 INFO L87 Difference]: Start difference. First operand 453 states and 649 transitions. Second operand has 8 states, 7 states have (on average 5.428571428571429) internal successors, (38), 8 states have internal predecessors, (38), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-28 03:28:54,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:28:54,531 INFO L93 Difference]: Finished difference Result 507 states and 658 transitions. [2024-11-28 03:28:54,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 03:28:54,536 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.428571428571429) internal successors, (38), 8 states have internal predecessors, (38), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 62 [2024-11-28 03:28:54,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:28:54,539 INFO L225 Difference]: With dead ends: 507 [2024-11-28 03:28:54,539 INFO L226 Difference]: Without dead ends: 506 [2024-11-28 03:28:54,540 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=97, Invalid=409, Unknown=0, NotChecked=0, Total=506 [2024-11-28 03:28:54,540 INFO L435 NwaCegarLoop]: 115 mSDtfsCounter, 393 mSDsluCounter, 451 mSDsCounter, 0 mSdLazyCounter, 372 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 397 SdHoareTripleChecker+Valid, 566 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 03:28:54,540 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [397 Valid, 566 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 372 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 03:28:54,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 506 states. [2024-11-28 03:28:54,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 506 to 453. [2024-11-28 03:28:54,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 357 states have (on average 1.557422969187675) internal successors, (556), 404 states have internal predecessors, (556), 46 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-28 03:28:54,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 648 transitions. [2024-11-28 03:28:54,644 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 648 transitions. Word has length 62 [2024-11-28 03:28:54,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:28:54,645 INFO L471 AbstractCegarLoop]: Abstraction has 453 states and 648 transitions. [2024-11-28 03:28:54,645 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.428571428571429) internal successors, (38), 8 states have internal predecessors, (38), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-28 03:28:54,645 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 648 transitions. [2024-11-28 03:28:54,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-28 03:28:54,645 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:28:54,646 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:28:54,660 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2024-11-28 03:28:54,846 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2024-11-28 03:28:54,847 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 03:28:54,848 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:28:54,848 INFO L85 PathProgramCache]: Analyzing trace with hash 1709030904, now seen corresponding path program 1 times [2024-11-28 03:28:54,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:28:54,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797735364] [2024-11-28 03:28:54,849 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:28:54,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:28:54,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:28:54,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1954782339] [2024-11-28 03:28:54,867 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:28:54,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:28:54,867 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:28:54,871 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:28:54,874 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2024-11-28 03:28:54,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:28:54,935 INFO L256 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 03:28:54,936 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:28:55,191 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-28 03:28:55,191 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:28:55,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:28:55,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797735364] [2024-11-28 03:28:55,259 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:28:55,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1954782339] [2024-11-28 03:28:55,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1954782339] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:28:55,260 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:28:55,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-11-28 03:28:55,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673335318] [2024-11-28 03:28:55,260 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 03:28:55,260 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:28:55,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:28:55,261 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:28:55,261 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:28:55,261 INFO L87 Difference]: Start difference. First operand 453 states and 648 transitions. Second operand has 6 states, 5 states have (on average 7.8) internal successors, (39), 6 states have internal predecessors, (39), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-28 03:28:56,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:28:56,004 INFO L93 Difference]: Finished difference Result 493 states and 660 transitions. [2024-11-28 03:28:56,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 03:28:56,004 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.8) internal successors, (39), 6 states have internal predecessors, (39), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 63 [2024-11-28 03:28:56,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:28:56,007 INFO L225 Difference]: With dead ends: 493 [2024-11-28 03:28:56,007 INFO L226 Difference]: Without dead ends: 492 [2024-11-28 03:28:56,008 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2024-11-28 03:28:56,008 INFO L435 NwaCegarLoop]: 110 mSDtfsCounter, 340 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 340 SdHoareTripleChecker+Valid, 317 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:28:56,009 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [340 Valid, 317 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 03:28:56,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2024-11-28 03:28:56,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 453. [2024-11-28 03:28:56,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 357 states have (on average 1.5490196078431373) internal successors, (553), 404 states have internal predecessors, (553), 46 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-28 03:28:56,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 645 transitions. [2024-11-28 03:28:56,094 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 645 transitions. Word has length 63 [2024-11-28 03:28:56,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:28:56,094 INFO L471 AbstractCegarLoop]: Abstraction has 453 states and 645 transitions. [2024-11-28 03:28:56,095 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.8) internal successors, (39), 6 states have internal predecessors, (39), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-28 03:28:56,095 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 645 transitions. [2024-11-28 03:28:56,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-28 03:28:56,095 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:28:56,095 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:28:56,103 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0 [2024-11-28 03:28:56,296 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2024-11-28 03:28:56,296 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 03:28:56,296 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:28:56,296 INFO L85 PathProgramCache]: Analyzing trace with hash -1317535503, now seen corresponding path program 1 times [2024-11-28 03:28:56,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:28:56,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15585768] [2024-11-28 03:28:56,297 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:28:56,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:28:56,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:28:56,403 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-28 03:28:56,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:28:56,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15585768] [2024-11-28 03:28:56,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [15585768] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:28:56,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:28:56,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:28:56,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065470183] [2024-11-28 03:28:56,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:28:56,404 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:28:56,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:28:56,405 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:28:56,405 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:28:56,405 INFO L87 Difference]: Start difference. First operand 453 states and 645 transitions. Second operand has 5 states, 4 states have (on average 7.75) internal successors, (31), 5 states have internal predecessors, (31), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 03:28:57,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:28:57,184 INFO L93 Difference]: Finished difference Result 475 states and 657 transitions. [2024-11-28 03:28:57,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:28:57,185 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.75) internal successors, (31), 5 states have internal predecessors, (31), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 65 [2024-11-28 03:28:57,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:28:57,187 INFO L225 Difference]: With dead ends: 475 [2024-11-28 03:28:57,187 INFO L226 Difference]: Without dead ends: 473 [2024-11-28 03:28:57,188 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:28:57,188 INFO L435 NwaCegarLoop]: 78 mSDtfsCounter, 221 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 268 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 03:28:57,188 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [225 Valid, 268 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 03:28:57,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2024-11-28 03:28:57,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 455. [2024-11-28 03:28:57,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 455 states, 359 states have (on average 1.5403899721448469) internal successors, (553), 406 states have internal predecessors, (553), 46 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-28 03:28:57,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 645 transitions. [2024-11-28 03:28:57,260 INFO L78 Accepts]: Start accepts. Automaton has 455 states and 645 transitions. Word has length 65 [2024-11-28 03:28:57,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:28:57,260 INFO L471 AbstractCegarLoop]: Abstraction has 455 states and 645 transitions. [2024-11-28 03:28:57,260 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.75) internal successors, (31), 5 states have internal predecessors, (31), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 03:28:57,260 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 645 transitions. [2024-11-28 03:28:57,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-28 03:28:57,261 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:28:57,261 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:28:57,261 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-28 03:28:57,261 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 03:28:57,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:28:57,262 INFO L85 PathProgramCache]: Analyzing trace with hash 2106072483, now seen corresponding path program 1 times [2024-11-28 03:28:57,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:28:57,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259272334] [2024-11-28 03:28:57,262 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:28:57,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:28:57,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:28:57,394 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-28 03:28:57,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:28:57,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259272334] [2024-11-28 03:28:57,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259272334] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:28:57,395 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:28:57,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:28:57,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115273071] [2024-11-28 03:28:57,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:28:57,395 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:28:57,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:28:57,396 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:28:57,396 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:28:57,396 INFO L87 Difference]: Start difference. First operand 455 states and 645 transitions. Second operand has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-28 03:28:58,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:28:58,116 INFO L93 Difference]: Finished difference Result 484 states and 653 transitions. [2024-11-28 03:28:58,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:28:58,116 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 66 [2024-11-28 03:28:58,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:28:58,118 INFO L225 Difference]: With dead ends: 484 [2024-11-28 03:28:58,118 INFO L226 Difference]: Without dead ends: 482 [2024-11-28 03:28:58,119 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:28:58,119 INFO L435 NwaCegarLoop]: 87 mSDtfsCounter, 303 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 307 SdHoareTripleChecker+Valid, 391 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 03:28:58,119 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [307 Valid, 391 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 03:28:58,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2024-11-28 03:28:58,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 455. [2024-11-28 03:28:58,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 455 states, 359 states have (on average 1.5348189415041782) internal successors, (551), 406 states have internal predecessors, (551), 46 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-28 03:28:58,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 643 transitions. [2024-11-28 03:28:58,182 INFO L78 Accepts]: Start accepts. Automaton has 455 states and 643 transitions. Word has length 66 [2024-11-28 03:28:58,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:28:58,182 INFO L471 AbstractCegarLoop]: Abstraction has 455 states and 643 transitions. [2024-11-28 03:28:58,182 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-28 03:28:58,183 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 643 transitions. [2024-11-28 03:28:58,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-28 03:28:58,183 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:28:58,184 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:28:58,184 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-11-28 03:28:58,184 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 03:28:58,184 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:28:58,184 INFO L85 PathProgramCache]: Analyzing trace with hash 1006063570, now seen corresponding path program 1 times [2024-11-28 03:28:58,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:28:58,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413839062] [2024-11-28 03:28:58,185 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:28:58,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:28:58,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:28:58,251 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-28 03:28:58,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:28:58,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413839062] [2024-11-28 03:28:58,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413839062] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:28:58,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:28:58,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:28:58,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740744062] [2024-11-28 03:28:58,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:28:58,252 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:28:58,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:28:58,253 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:28:58,253 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:28:58,253 INFO L87 Difference]: Start difference. First operand 455 states and 643 transitions. Second operand has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-28 03:28:58,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:28:58,502 INFO L93 Difference]: Finished difference Result 629 states and 914 transitions. [2024-11-28 03:28:58,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:28:58,503 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 68 [2024-11-28 03:28:58,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:28:58,506 INFO L225 Difference]: With dead ends: 629 [2024-11-28 03:28:58,506 INFO L226 Difference]: Without dead ends: 628 [2024-11-28 03:28:58,507 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:28:58,508 INFO L435 NwaCegarLoop]: 113 mSDtfsCounter, 22 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:28:58,509 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 216 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:28:58,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 628 states. [2024-11-28 03:28:58,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 628 to 583. [2024-11-28 03:28:58,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 583 states, 465 states have (on average 1.5376344086021505) internal successors, (715), 512 states have internal predecessors, (715), 68 states have call successors, (68), 2 states have call predecessors, (68), 2 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2024-11-28 03:28:58,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 583 states to 583 states and 851 transitions. [2024-11-28 03:28:58,668 INFO L78 Accepts]: Start accepts. Automaton has 583 states and 851 transitions. Word has length 68 [2024-11-28 03:28:58,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:28:58,669 INFO L471 AbstractCegarLoop]: Abstraction has 583 states and 851 transitions. [2024-11-28 03:28:58,669 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-28 03:28:58,669 INFO L276 IsEmpty]: Start isEmpty. Operand 583 states and 851 transitions. [2024-11-28 03:28:58,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-28 03:28:58,670 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:28:58,670 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:28:58,670 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-11-28 03:28:58,674 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 03:28:58,675 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:28:58,675 INFO L85 PathProgramCache]: Analyzing trace with hash 1123199734, now seen corresponding path program 1 times [2024-11-28 03:28:58,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:28:58,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605105595] [2024-11-28 03:28:58,675 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:28:58,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:28:58,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:28:58,822 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-28 03:28:58,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:28:58,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605105595] [2024-11-28 03:28:58,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605105595] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:28:58,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:28:58,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:28:58,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809868723] [2024-11-28 03:28:58,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:28:58,824 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:28:58,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:28:58,825 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:28:58,825 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:28:58,825 INFO L87 Difference]: Start difference. First operand 583 states and 851 transitions. Second operand has 6 states, 5 states have (on average 7.0) internal successors, (35), 6 states have internal predecessors, (35), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-28 03:28:59,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:28:59,361 INFO L93 Difference]: Finished difference Result 599 states and 851 transitions. [2024-11-28 03:28:59,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:28:59,361 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.0) internal successors, (35), 6 states have internal predecessors, (35), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 69 [2024-11-28 03:28:59,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:28:59,363 INFO L225 Difference]: With dead ends: 599 [2024-11-28 03:28:59,363 INFO L226 Difference]: Without dead ends: 598 [2024-11-28 03:28:59,364 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:28:59,364 INFO L435 NwaCegarLoop]: 89 mSDtfsCounter, 198 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:28:59,365 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [202 Valid, 342 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 03:28:59,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 598 states. [2024-11-28 03:28:59,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 598 to 583. [2024-11-28 03:28:59,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 583 states, 465 states have (on average 1.5354838709677419) internal successors, (714), 512 states have internal predecessors, (714), 68 states have call successors, (68), 2 states have call predecessors, (68), 2 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2024-11-28 03:28:59,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 583 states to 583 states and 850 transitions. [2024-11-28 03:28:59,457 INFO L78 Accepts]: Start accepts. Automaton has 583 states and 850 transitions. Word has length 69 [2024-11-28 03:28:59,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:28:59,457 INFO L471 AbstractCegarLoop]: Abstraction has 583 states and 850 transitions. [2024-11-28 03:28:59,457 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.0) internal successors, (35), 6 states have internal predecessors, (35), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-28 03:28:59,457 INFO L276 IsEmpty]: Start isEmpty. Operand 583 states and 850 transitions. [2024-11-28 03:28:59,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-28 03:28:59,458 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:28:59,458 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:28:59,458 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-11-28 03:28:59,458 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 03:28:59,459 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:28:59,459 INFO L85 PathProgramCache]: Analyzing trace with hash -1755804919, now seen corresponding path program 1 times [2024-11-28 03:28:59,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:28:59,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57811210] [2024-11-28 03:28:59,459 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:28:59,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:28:59,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:28:59,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2143729025] [2024-11-28 03:28:59,475 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:28:59,476 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:28:59,476 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:28:59,478 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:28:59,486 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2024-11-28 03:28:59,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:28:59,552 INFO L256 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 03:28:59,554 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:28:59,871 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-28 03:28:59,871 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:29:00,225 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-28 03:29:00,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:29:00,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57811210] [2024-11-28 03:29:00,225 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:29:00,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2143729025] [2024-11-28 03:29:00,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2143729025] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:29:00,226 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 03:29:00,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2024-11-28 03:29:00,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917952458] [2024-11-28 03:29:00,226 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 03:29:00,226 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 03:29:00,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:29:00,227 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 03:29:00,227 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-11-28 03:29:00,227 INFO L87 Difference]: Start difference. First operand 583 states and 850 transitions. Second operand has 12 states, 11 states have (on average 6.636363636363637) internal successors, (73), 12 states have internal predecessors, (73), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-28 03:29:02,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:29:02,850 INFO L93 Difference]: Finished difference Result 864 states and 1191 transitions. [2024-11-28 03:29:02,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-28 03:29:02,851 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.636363636363637) internal successors, (73), 12 states have internal predecessors, (73), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) Word has length 69 [2024-11-28 03:29:02,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:29:02,854 INFO L225 Difference]: With dead ends: 864 [2024-11-28 03:29:02,854 INFO L226 Difference]: Without dead ends: 861 [2024-11-28 03:29:02,855 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=184, Invalid=416, Unknown=0, NotChecked=0, Total=600 [2024-11-28 03:29:02,856 INFO L435 NwaCegarLoop]: 102 mSDtfsCounter, 656 mSDsluCounter, 742 mSDsCounter, 0 mSdLazyCounter, 906 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 659 SdHoareTripleChecker+Valid, 844 SdHoareTripleChecker+Invalid, 953 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 906 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:29:02,856 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [659 Valid, 844 Invalid, 953 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 906 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-28 03:29:02,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 861 states. [2024-11-28 03:29:02,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 861 to 631. [2024-11-28 03:29:02,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 631 states, 507 states have (on average 1.5029585798816567) internal successors, (762), 554 states have internal predecessors, (762), 74 states have call successors, (74), 2 states have call predecessors, (74), 2 states have return successors, (74), 74 states have call predecessors, (74), 74 states have call successors, (74) [2024-11-28 03:29:02,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 631 states to 631 states and 910 transitions. [2024-11-28 03:29:02,966 INFO L78 Accepts]: Start accepts. Automaton has 631 states and 910 transitions. Word has length 69 [2024-11-28 03:29:02,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:29:02,966 INFO L471 AbstractCegarLoop]: Abstraction has 631 states and 910 transitions. [2024-11-28 03:29:02,966 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.636363636363637) internal successors, (73), 12 states have internal predecessors, (73), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-28 03:29:02,966 INFO L276 IsEmpty]: Start isEmpty. Operand 631 states and 910 transitions. [2024-11-28 03:29:02,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-28 03:29:02,967 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:29:02,967 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:29:02,977 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2024-11-28 03:29:03,167 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2024-11-28 03:29:03,168 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 03:29:03,168 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:29:03,168 INFO L85 PathProgramCache]: Analyzing trace with hash 459453524, now seen corresponding path program 1 times [2024-11-28 03:29:03,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:29:03,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374949571] [2024-11-28 03:29:03,168 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:29:03,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:29:03,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:29:03,249 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-28 03:29:03,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:29:03,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374949571] [2024-11-28 03:29:03,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374949571] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:29:03,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:29:03,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:29:03,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673801622] [2024-11-28 03:29:03,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:29:03,250 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:29:03,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:29:03,251 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:29:03,251 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:29:03,251 INFO L87 Difference]: Start difference. First operand 631 states and 910 transitions. Second operand has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-28 03:29:03,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:29:03,545 INFO L93 Difference]: Finished difference Result 702 states and 976 transitions. [2024-11-28 03:29:03,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:29:03,546 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 70 [2024-11-28 03:29:03,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:29:03,548 INFO L225 Difference]: With dead ends: 702 [2024-11-28 03:29:03,548 INFO L226 Difference]: Without dead ends: 698 [2024-11-28 03:29:03,549 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 03:29:03,549 INFO L435 NwaCegarLoop]: 109 mSDtfsCounter, 77 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 301 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:29:03,550 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 301 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:29:03,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 698 states. [2024-11-28 03:29:03,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 698 to 651. [2024-11-28 03:29:03,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 651 states, 527 states have (on average 1.4895635673624288) internal successors, (785), 574 states have internal predecessors, (785), 74 states have call successors, (74), 2 states have call predecessors, (74), 2 states have return successors, (74), 74 states have call predecessors, (74), 74 states have call successors, (74) [2024-11-28 03:29:03,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 651 states to 651 states and 933 transitions. [2024-11-28 03:29:03,688 INFO L78 Accepts]: Start accepts. Automaton has 651 states and 933 transitions. Word has length 70 [2024-11-28 03:29:03,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:29:03,688 INFO L471 AbstractCegarLoop]: Abstraction has 651 states and 933 transitions. [2024-11-28 03:29:03,689 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-28 03:29:03,689 INFO L276 IsEmpty]: Start isEmpty. Operand 651 states and 933 transitions. [2024-11-28 03:29:03,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-28 03:29:03,689 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:29:03,689 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:29:03,689 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-11-28 03:29:03,689 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 03:29:03,689 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:29:03,690 INFO L85 PathProgramCache]: Analyzing trace with hash 1404622470, now seen corresponding path program 1 times [2024-11-28 03:29:03,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:29:03,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119051397] [2024-11-28 03:29:03,690 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:29:03,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:29:03,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:29:03,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1979742985] [2024-11-28 03:29:03,703 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:29:03,703 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:29:03,703 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:29:03,708 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:29:03,709 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2024-11-28 03:29:03,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:29:03,767 INFO L256 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 03:29:03,769 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:29:03,978 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-28 03:29:03,979 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:29:04,441 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-28 03:29:04,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:29:04,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119051397] [2024-11-28 03:29:04,441 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:29:04,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1979742985] [2024-11-28 03:29:04,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1979742985] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:29:04,441 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 03:29:04,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2024-11-28 03:29:04,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067622419] [2024-11-28 03:29:04,442 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 03:29:04,442 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 03:29:04,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:29:04,443 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 03:29:04,443 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-11-28 03:29:04,443 INFO L87 Difference]: Start difference. First operand 651 states and 933 transitions. Second operand has 12 states, 11 states have (on average 6.818181818181818) internal successors, (75), 12 states have internal predecessors, (75), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-28 03:29:06,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:29:06,510 INFO L93 Difference]: Finished difference Result 912 states and 1201 transitions. [2024-11-28 03:29:06,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-28 03:29:06,510 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.818181818181818) internal successors, (75), 12 states have internal predecessors, (75), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) Word has length 70 [2024-11-28 03:29:06,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:29:06,513 INFO L225 Difference]: With dead ends: 912 [2024-11-28 03:29:06,513 INFO L226 Difference]: Without dead ends: 909 [2024-11-28 03:29:06,513 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 315 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=385, Invalid=1021, Unknown=0, NotChecked=0, Total=1406 [2024-11-28 03:29:06,514 INFO L435 NwaCegarLoop]: 76 mSDtfsCounter, 1170 mSDsluCounter, 494 mSDsCounter, 0 mSdLazyCounter, 595 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1170 SdHoareTripleChecker+Valid, 570 SdHoareTripleChecker+Invalid, 705 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 595 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:29:06,514 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1170 Valid, 570 Invalid, 705 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 595 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-28 03:29:06,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 909 states. [2024-11-28 03:29:06,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 909 to 793. [2024-11-28 03:29:06,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 793 states, 651 states have (on average 1.4746543778801844) internal successors, (960), 698 states have internal predecessors, (960), 92 states have call successors, (92), 2 states have call predecessors, (92), 2 states have return successors, (92), 92 states have call predecessors, (92), 92 states have call successors, (92) [2024-11-28 03:29:06,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 793 states to 793 states and 1144 transitions. [2024-11-28 03:29:06,695 INFO L78 Accepts]: Start accepts. Automaton has 793 states and 1144 transitions. Word has length 70 [2024-11-28 03:29:06,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:29:06,695 INFO L471 AbstractCegarLoop]: Abstraction has 793 states and 1144 transitions. [2024-11-28 03:29:06,695 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.818181818181818) internal successors, (75), 12 states have internal predecessors, (75), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-28 03:29:06,695 INFO L276 IsEmpty]: Start isEmpty. Operand 793 states and 1144 transitions. [2024-11-28 03:29:06,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-28 03:29:06,696 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:29:06,696 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:29:06,707 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Ended with exit code 0 [2024-11-28 03:29:06,897 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:29:06,897 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 03:29:06,898 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:29:06,898 INFO L85 PathProgramCache]: Analyzing trace with hash 1704997528, now seen corresponding path program 1 times [2024-11-28 03:29:06,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:29:06,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672029431] [2024-11-28 03:29:06,898 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:29:06,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:29:06,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:29:07,063 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-28 03:29:07,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:29:07,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672029431] [2024-11-28 03:29:07,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [672029431] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:29:07,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1987810401] [2024-11-28 03:29:07,063 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:29:07,063 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:29:07,063 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:29:07,066 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:29:07,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2024-11-28 03:29:07,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:29:07,138 INFO L256 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 03:29:07,141 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:29:07,300 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-28 03:29:07,300 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:29:07,670 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-28 03:29:07,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1987810401] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:29:07,670 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:29:07,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2024-11-28 03:29:07,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716065515] [2024-11-28 03:29:07,670 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:29:07,671 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 03:29:07,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:29:07,671 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 03:29:07,671 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-28 03:29:07,672 INFO L87 Difference]: Start difference. First operand 793 states and 1144 transitions. Second operand has 12 states, 11 states have (on average 7.0) internal successors, (77), 12 states have internal predecessors, (77), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2024-11-28 03:29:09,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:29:09,466 INFO L93 Difference]: Finished difference Result 1078 states and 1505 transitions. [2024-11-28 03:29:09,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-28 03:29:09,466 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.0) internal successors, (77), 12 states have internal predecessors, (77), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) Word has length 76 [2024-11-28 03:29:09,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:29:09,469 INFO L225 Difference]: With dead ends: 1078 [2024-11-28 03:29:09,469 INFO L226 Difference]: Without dead ends: 1076 [2024-11-28 03:29:09,469 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=169, Invalid=383, Unknown=0, NotChecked=0, Total=552 [2024-11-28 03:29:09,470 INFO L435 NwaCegarLoop]: 111 mSDtfsCounter, 596 mSDsluCounter, 608 mSDsCounter, 0 mSdLazyCounter, 701 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 600 SdHoareTripleChecker+Valid, 719 SdHoareTripleChecker+Invalid, 753 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 701 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:29:09,470 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [600 Valid, 719 Invalid, 753 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 701 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-28 03:29:09,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1076 states. [2024-11-28 03:29:09,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1076 to 796. [2024-11-28 03:29:09,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 796 states, 653 states have (on average 1.448698315467075) internal successors, (946), 699 states have internal predecessors, (946), 94 states have call successors, (94), 2 states have call predecessors, (94), 2 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) [2024-11-28 03:29:09,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 796 states to 796 states and 1134 transitions. [2024-11-28 03:29:09,641 INFO L78 Accepts]: Start accepts. Automaton has 796 states and 1134 transitions. Word has length 76 [2024-11-28 03:29:09,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:29:09,641 INFO L471 AbstractCegarLoop]: Abstraction has 796 states and 1134 transitions. [2024-11-28 03:29:09,642 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.0) internal successors, (77), 12 states have internal predecessors, (77), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2024-11-28 03:29:09,642 INFO L276 IsEmpty]: Start isEmpty. Operand 796 states and 1134 transitions. [2024-11-28 03:29:09,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-28 03:29:09,642 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:29:09,643 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:29:09,652 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Forceful destruction successful, exit code 0 [2024-11-28 03:29:09,843 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable42 [2024-11-28 03:29:09,843 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 03:29:09,844 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:29:09,844 INFO L85 PathProgramCache]: Analyzing trace with hash 1315315932, now seen corresponding path program 1 times [2024-11-28 03:29:09,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:29:09,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559119662] [2024-11-28 03:29:09,844 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:29:09,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:29:09,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:29:09,963 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-28 03:29:09,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:29:09,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559119662] [2024-11-28 03:29:09,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559119662] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:29:09,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:29:09,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:29:09,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128189207] [2024-11-28 03:29:09,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:29:09,964 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 03:29:09,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:29:09,965 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 03:29:09,965 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:29:09,965 INFO L87 Difference]: Start difference. First operand 796 states and 1134 transitions. Second operand has 7 states, 6 states have (on average 7.166666666666667) internal successors, (43), 7 states have internal predecessors, (43), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 03:29:11,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:29:11,014 INFO L93 Difference]: Finished difference Result 823 states and 1140 transitions. [2024-11-28 03:29:11,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 03:29:11,015 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.166666666666667) internal successors, (43), 7 states have internal predecessors, (43), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 77 [2024-11-28 03:29:11,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:29:11,018 INFO L225 Difference]: With dead ends: 823 [2024-11-28 03:29:11,018 INFO L226 Difference]: Without dead ends: 821 [2024-11-28 03:29:11,018 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2024-11-28 03:29:11,018 INFO L435 NwaCegarLoop]: 103 mSDtfsCounter, 260 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 03:29:11,019 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [260 Valid, 400 Invalid, 365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 03:29:11,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 821 states. [2024-11-28 03:29:11,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 821 to 796. [2024-11-28 03:29:11,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 796 states, 653 states have (on average 1.430321592649311) internal successors, (934), 699 states have internal predecessors, (934), 94 states have call successors, (94), 2 states have call predecessors, (94), 2 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) [2024-11-28 03:29:11,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 796 states to 796 states and 1122 transitions. [2024-11-28 03:29:11,169 INFO L78 Accepts]: Start accepts. Automaton has 796 states and 1122 transitions. Word has length 77 [2024-11-28 03:29:11,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:29:11,169 INFO L471 AbstractCegarLoop]: Abstraction has 796 states and 1122 transitions. [2024-11-28 03:29:11,169 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.166666666666667) internal successors, (43), 7 states have internal predecessors, (43), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 03:29:11,169 INFO L276 IsEmpty]: Start isEmpty. Operand 796 states and 1122 transitions. [2024-11-28 03:29:11,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-28 03:29:11,170 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:29:11,170 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:29:11,170 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2024-11-28 03:29:11,170 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 03:29:11,171 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:29:11,171 INFO L85 PathProgramCache]: Analyzing trace with hash -86846964, now seen corresponding path program 1 times [2024-11-28 03:29:11,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:29:11,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008667146] [2024-11-28 03:29:11,171 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:29:11,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:29:11,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:29:11,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [887628893] [2024-11-28 03:29:11,191 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:29:11,191 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:29:11,192 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:29:11,194 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:29:11,199 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2024-11-28 03:29:11,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:29:11,258 INFO L256 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 03:29:11,260 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:29:11,669 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-28 03:29:11,670 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:29:11,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:29:11,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008667146] [2024-11-28 03:29:11,670 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:29:11,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [887628893] [2024-11-28 03:29:11,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [887628893] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:29:11,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:29:11,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:29:11,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176420652] [2024-11-28 03:29:11,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:29:11,671 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:29:11,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:29:11,671 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:29:11,671 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:29:11,671 INFO L87 Difference]: Start difference. First operand 796 states and 1122 transitions. Second operand has 6 states, 5 states have (on average 8.8) internal successors, (44), 6 states have internal predecessors, (44), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-28 03:29:12,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:29:12,457 INFO L93 Difference]: Finished difference Result 821 states and 1129 transitions. [2024-11-28 03:29:12,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 03:29:12,458 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.8) internal successors, (44), 6 states have internal predecessors, (44), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 78 [2024-11-28 03:29:12,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:29:12,462 INFO L225 Difference]: With dead ends: 821 [2024-11-28 03:29:12,462 INFO L226 Difference]: Without dead ends: 818 [2024-11-28 03:29:12,463 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:29:12,464 INFO L435 NwaCegarLoop]: 128 mSDtfsCounter, 67 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 479 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:29:12,464 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 479 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 03:29:12,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 818 states. [2024-11-28 03:29:12,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 818 to 796. [2024-11-28 03:29:12,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 796 states, 653 states have (on average 1.4241960183767228) internal successors, (930), 699 states have internal predecessors, (930), 94 states have call successors, (94), 2 states have call predecessors, (94), 2 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) [2024-11-28 03:29:12,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 796 states to 796 states and 1118 transitions. [2024-11-28 03:29:12,632 INFO L78 Accepts]: Start accepts. Automaton has 796 states and 1118 transitions. Word has length 78 [2024-11-28 03:29:12,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:29:12,632 INFO L471 AbstractCegarLoop]: Abstraction has 796 states and 1118 transitions. [2024-11-28 03:29:12,632 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.8) internal successors, (44), 6 states have internal predecessors, (44), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-28 03:29:12,632 INFO L276 IsEmpty]: Start isEmpty. Operand 796 states and 1118 transitions. [2024-11-28 03:29:12,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-28 03:29:12,633 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:29:12,633 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:29:12,640 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Ended with exit code 0 [2024-11-28 03:29:12,834 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2024-11-28 03:29:12,834 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 03:29:12,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:29:12,834 INFO L85 PathProgramCache]: Analyzing trace with hash 1602711568, now seen corresponding path program 1 times [2024-11-28 03:29:12,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:29:12,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116912398] [2024-11-28 03:29:12,835 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:29:12,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:29:12,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:29:12,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1185215725] [2024-11-28 03:29:12,852 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:29:12,852 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:29:12,852 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:29:12,856 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:29:12,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2024-11-28 03:29:12,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:29:12,928 INFO L256 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 03:29:12,930 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:29:13,393 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-28 03:29:13,393 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:29:13,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:29:13,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116912398] [2024-11-28 03:29:13,685 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:29:13,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1185215725] [2024-11-28 03:29:13,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1185215725] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:29:13,685 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:29:13,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-11-28 03:29:13,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307108787] [2024-11-28 03:29:13,686 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 03:29:13,686 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:29:13,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:29:13,687 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:29:13,687 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:29:13,687 INFO L87 Difference]: Start difference. First operand 796 states and 1118 transitions. Second operand has 6 states, 5 states have (on average 9.0) internal successors, (45), 6 states have internal predecessors, (45), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-28 03:29:14,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:29:14,213 INFO L93 Difference]: Finished difference Result 920 states and 1257 transitions. [2024-11-28 03:29:14,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:29:14,214 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.0) internal successors, (45), 6 states have internal predecessors, (45), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 79 [2024-11-28 03:29:14,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:29:14,218 INFO L225 Difference]: With dead ends: 920 [2024-11-28 03:29:14,218 INFO L226 Difference]: Without dead ends: 919 [2024-11-28 03:29:14,219 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:29:14,219 INFO L435 NwaCegarLoop]: 103 mSDtfsCounter, 166 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:29:14,219 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [178 Valid, 370 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 03:29:14,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 919 states. [2024-11-28 03:29:14,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 919 to 804. [2024-11-28 03:29:14,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 804 states, 661 states have (on average 1.420574886535552) internal successors, (939), 707 states have internal predecessors, (939), 94 states have call successors, (94), 2 states have call predecessors, (94), 2 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) [2024-11-28 03:29:14,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 804 states to 804 states and 1127 transitions. [2024-11-28 03:29:14,342 INFO L78 Accepts]: Start accepts. Automaton has 804 states and 1127 transitions. Word has length 79 [2024-11-28 03:29:14,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:29:14,343 INFO L471 AbstractCegarLoop]: Abstraction has 804 states and 1127 transitions. [2024-11-28 03:29:14,343 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.0) internal successors, (45), 6 states have internal predecessors, (45), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-28 03:29:14,343 INFO L276 IsEmpty]: Start isEmpty. Operand 804 states and 1127 transitions. [2024-11-28 03:29:14,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-28 03:29:14,344 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:29:14,344 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:29:14,351 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Forceful destruction successful, exit code 0 [2024-11-28 03:29:14,544 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2024-11-28 03:29:14,544 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 03:29:14,544 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:29:14,545 INFO L85 PathProgramCache]: Analyzing trace with hash 1590407453, now seen corresponding path program 1 times [2024-11-28 03:29:14,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:29:14,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635311118] [2024-11-28 03:29:14,545 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:29:14,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:29:14,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:29:14,694 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-28 03:29:14,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:29:14,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635311118] [2024-11-28 03:29:14,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1635311118] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:29:14,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1697469776] [2024-11-28 03:29:14,695 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:29:14,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:29:14,695 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:29:14,697 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:29:14,702 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2024-11-28 03:29:14,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:29:14,767 INFO L256 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 03:29:14,770 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:29:14,942 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-28 03:29:14,943 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:29:15,336 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-28 03:29:15,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1697469776] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:29:15,336 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:29:15,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 7] total 15 [2024-11-28 03:29:15,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12149877] [2024-11-28 03:29:15,337 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:29:15,337 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-28 03:29:15,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:29:15,338 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-28 03:29:15,338 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2024-11-28 03:29:15,338 INFO L87 Difference]: Start difference. First operand 804 states and 1127 transitions. Second operand has 16 states, 15 states have (on average 8.133333333333333) internal successors, (122), 16 states have internal predecessors, (122), 7 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 7 states have call predecessors, (24), 7 states have call successors, (24) [2024-11-28 03:29:16,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:29:16,822 INFO L93 Difference]: Finished difference Result 823 states and 1134 transitions. [2024-11-28 03:29:16,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-28 03:29:16,823 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 8.133333333333333) internal successors, (122), 16 states have internal predecessors, (122), 7 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 7 states have call predecessors, (24), 7 states have call successors, (24) Word has length 80 [2024-11-28 03:29:16,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:29:16,826 INFO L225 Difference]: With dead ends: 823 [2024-11-28 03:29:16,826 INFO L226 Difference]: Without dead ends: 820 [2024-11-28 03:29:16,827 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 271 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=404, Invalid=1002, Unknown=0, NotChecked=0, Total=1406 [2024-11-28 03:29:16,827 INFO L435 NwaCegarLoop]: 49 mSDtfsCounter, 545 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 545 SdHoareTripleChecker+Valid, 369 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 03:29:16,827 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [545 Valid, 369 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 480 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 03:29:16,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 820 states. [2024-11-28 03:29:16,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 820 to 802. [2024-11-28 03:29:16,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 802 states, 661 states have (on average 1.3978819969742813) internal successors, (924), 705 states have internal predecessors, (924), 94 states have call successors, (94), 2 states have call predecessors, (94), 2 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) [2024-11-28 03:29:16,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 802 states to 802 states and 1112 transitions. [2024-11-28 03:29:16,984 INFO L78 Accepts]: Start accepts. Automaton has 802 states and 1112 transitions. Word has length 80 [2024-11-28 03:29:16,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:29:16,984 INFO L471 AbstractCegarLoop]: Abstraction has 802 states and 1112 transitions. [2024-11-28 03:29:16,984 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 8.133333333333333) internal successors, (122), 16 states have internal predecessors, (122), 7 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 7 states have call predecessors, (24), 7 states have call successors, (24) [2024-11-28 03:29:16,984 INFO L276 IsEmpty]: Start isEmpty. Operand 802 states and 1112 transitions. [2024-11-28 03:29:16,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-28 03:29:16,985 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:29:16,985 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:29:16,997 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Forceful destruction successful, exit code 0 [2024-11-28 03:29:17,189 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2024-11-28 03:29:17,190 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 03:29:17,191 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:29:17,191 INFO L85 PathProgramCache]: Analyzing trace with hash -1687437358, now seen corresponding path program 1 times [2024-11-28 03:29:17,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:29:17,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508260028] [2024-11-28 03:29:17,191 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:29:17,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:29:17,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:29:17,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2100726584] [2024-11-28 03:29:17,214 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:29:17,214 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:29:17,214 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:29:17,217 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:29:17,220 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2024-11-28 03:29:17,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:29:17,290 INFO L256 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 03:29:17,293 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:29:17,952 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-28 03:29:17,952 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:29:17,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:29:17,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508260028] [2024-11-28 03:29:17,952 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:29:17,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2100726584] [2024-11-28 03:29:17,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2100726584] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:29:17,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:29:17,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:29:17,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895023507] [2024-11-28 03:29:17,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:29:17,953 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 03:29:17,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:29:17,954 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 03:29:17,954 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:29:17,954 INFO L87 Difference]: Start difference. First operand 802 states and 1112 transitions. Second operand has 7 states, 6 states have (on average 7.833333333333333) internal successors, (47), 7 states have internal predecessors, (47), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-28 03:29:18,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:29:18,600 INFO L93 Difference]: Finished difference Result 824 states and 1118 transitions. [2024-11-28 03:29:18,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 03:29:18,600 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.833333333333333) internal successors, (47), 7 states have internal predecessors, (47), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 81 [2024-11-28 03:29:18,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:29:18,604 INFO L225 Difference]: With dead ends: 824 [2024-11-28 03:29:18,604 INFO L226 Difference]: Without dead ends: 823 [2024-11-28 03:29:18,604 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:29:18,604 INFO L435 NwaCegarLoop]: 124 mSDtfsCounter, 80 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:29:18,605 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 323 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 03:29:18,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 823 states. [2024-11-28 03:29:18,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 823 to 802. [2024-11-28 03:29:18,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 802 states, 661 states have (on average 1.3963691376701968) internal successors, (923), 705 states have internal predecessors, (923), 94 states have call successors, (94), 2 states have call predecessors, (94), 2 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) [2024-11-28 03:29:18,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 802 states to 802 states and 1111 transitions. [2024-11-28 03:29:18,734 INFO L78 Accepts]: Start accepts. Automaton has 802 states and 1111 transitions. Word has length 81 [2024-11-28 03:29:18,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:29:18,734 INFO L471 AbstractCegarLoop]: Abstraction has 802 states and 1111 transitions. [2024-11-28 03:29:18,734 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.833333333333333) internal successors, (47), 7 states have internal predecessors, (47), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-28 03:29:18,734 INFO L276 IsEmpty]: Start isEmpty. Operand 802 states and 1111 transitions. [2024-11-28 03:29:18,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-28 03:29:18,735 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:29:18,735 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:29:18,743 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Forceful destruction successful, exit code 0 [2024-11-28 03:29:18,936 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2024-11-28 03:29:18,936 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 03:29:18,936 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:29:18,936 INFO L85 PathProgramCache]: Analyzing trace with hash 1798357825, now seen corresponding path program 1 times [2024-11-28 03:29:18,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:29:18,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107334214] [2024-11-28 03:29:18,936 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:29:18,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:29:18,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:29:18,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [766331346] [2024-11-28 03:29:18,954 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:29:18,954 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:29:18,954 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:29:18,958 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:29:18,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2024-11-28 03:29:19,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:29:19,036 INFO L256 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-28 03:29:19,038 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:29:19,539 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-28 03:29:19,539 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:29:19,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:29:19,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107334214] [2024-11-28 03:29:19,683 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:29:19,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [766331346] [2024-11-28 03:29:19,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [766331346] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:29:19,683 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:29:19,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-28 03:29:19,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805477722] [2024-11-28 03:29:19,684 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 03:29:19,684 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 03:29:19,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:29:19,684 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 03:29:19,685 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:29:19,685 INFO L87 Difference]: Start difference. First operand 802 states and 1111 transitions. Second operand has 8 states, 7 states have (on average 7.285714285714286) internal successors, (51), 8 states have internal predecessors, (51), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-28 03:29:20,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:29:20,644 INFO L93 Difference]: Finished difference Result 860 states and 1145 transitions. [2024-11-28 03:29:20,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 03:29:20,645 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.285714285714286) internal successors, (51), 8 states have internal predecessors, (51), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 85 [2024-11-28 03:29:20,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:29:20,649 INFO L225 Difference]: With dead ends: 860 [2024-11-28 03:29:20,649 INFO L226 Difference]: Without dead ends: 857 [2024-11-28 03:29:20,650 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2024-11-28 03:29:20,651 INFO L435 NwaCegarLoop]: 153 mSDtfsCounter, 132 mSDsluCounter, 408 mSDsCounter, 0 mSdLazyCounter, 440 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 561 SdHoareTripleChecker+Invalid, 447 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 03:29:20,651 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 561 Invalid, 447 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 440 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 03:29:20,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 857 states. [2024-11-28 03:29:20,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 857 to 804. [2024-11-28 03:29:20,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 804 states, 663 states have (on average 1.3861236802413273) internal successors, (919), 707 states have internal predecessors, (919), 94 states have call successors, (94), 2 states have call predecessors, (94), 2 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) [2024-11-28 03:29:20,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 804 states to 804 states and 1107 transitions. [2024-11-28 03:29:20,804 INFO L78 Accepts]: Start accepts. Automaton has 804 states and 1107 transitions. Word has length 85 [2024-11-28 03:29:20,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:29:20,804 INFO L471 AbstractCegarLoop]: Abstraction has 804 states and 1107 transitions. [2024-11-28 03:29:20,804 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.285714285714286) internal successors, (51), 8 states have internal predecessors, (51), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-28 03:29:20,804 INFO L276 IsEmpty]: Start isEmpty. Operand 804 states and 1107 transitions. [2024-11-28 03:29:20,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-28 03:29:20,810 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:29:20,810 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:29:20,821 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Ended with exit code 0 [2024-11-28 03:29:21,010 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2024-11-28 03:29:21,011 INFO L396 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 03:29:21,011 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:29:21,011 INFO L85 PathProgramCache]: Analyzing trace with hash 2099006792, now seen corresponding path program 1 times [2024-11-28 03:29:21,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:29:21,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737162251] [2024-11-28 03:29:21,011 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:29:21,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:29:21,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:29:21,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1911027336] [2024-11-28 03:29:21,036 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:29:21,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:29:21,037 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:29:21,039 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:29:21,047 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2024-11-28 03:29:21,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:29:21,111 INFO L256 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-28 03:29:21,113 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:29:22,465 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 3 proven. 8 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-28 03:29:22,465 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:29:23,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:29:23,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737162251] [2024-11-28 03:29:23,116 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:29:23,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1911027336] [2024-11-28 03:29:23,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1911027336] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:29:23,116 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:29:23,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-11-28 03:29:23,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452863771] [2024-11-28 03:29:23,116 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 03:29:23,117 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 03:29:23,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:29:23,117 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 03:29:23,117 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=278, Unknown=0, NotChecked=0, Total=342 [2024-11-28 03:29:23,118 INFO L87 Difference]: Start difference. First operand 804 states and 1107 transitions. Second operand has 13 states, 12 states have (on average 4.5) internal successors, (54), 12 states have internal predecessors, (54), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 03:29:25,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:29:25,825 INFO L93 Difference]: Finished difference Result 1101 states and 1513 transitions. [2024-11-28 03:29:25,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-28 03:29:25,826 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 4.5) internal successors, (54), 12 states have internal predecessors, (54), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 85 [2024-11-28 03:29:25,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:29:25,831 INFO L225 Difference]: With dead ends: 1101 [2024-11-28 03:29:25,831 INFO L226 Difference]: Without dead ends: 1099 [2024-11-28 03:29:25,832 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=147, Invalid=609, Unknown=0, NotChecked=0, Total=756 [2024-11-28 03:29:25,833 INFO L435 NwaCegarLoop]: 98 mSDtfsCounter, 443 mSDsluCounter, 656 mSDsCounter, 0 mSdLazyCounter, 1505 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 447 SdHoareTripleChecker+Valid, 754 SdHoareTripleChecker+Invalid, 1542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1505 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:29:25,833 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [447 Valid, 754 Invalid, 1542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1505 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-28 03:29:25,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1099 states. [2024-11-28 03:29:25,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1099 to 979. [2024-11-28 03:29:25,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 979 states, 816 states have (on average 1.3933823529411764) internal successors, (1137), 860 states have internal predecessors, (1137), 116 states have call successors, (116), 2 states have call predecessors, (116), 2 states have return successors, (116), 116 states have call predecessors, (116), 116 states have call successors, (116) [2024-11-28 03:29:25,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 979 states to 979 states and 1369 transitions. [2024-11-28 03:29:25,990 INFO L78 Accepts]: Start accepts. Automaton has 979 states and 1369 transitions. Word has length 85 [2024-11-28 03:29:25,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:29:25,990 INFO L471 AbstractCegarLoop]: Abstraction has 979 states and 1369 transitions. [2024-11-28 03:29:25,990 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 4.5) internal successors, (54), 12 states have internal predecessors, (54), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 03:29:25,991 INFO L276 IsEmpty]: Start isEmpty. Operand 979 states and 1369 transitions. [2024-11-28 03:29:25,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-28 03:29:25,991 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:29:25,991 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:29:25,999 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Forceful destruction successful, exit code 0 [2024-11-28 03:29:26,192 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2024-11-28 03:29:26,192 INFO L396 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 03:29:26,192 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:29:26,192 INFO L85 PathProgramCache]: Analyzing trace with hash -85482125, now seen corresponding path program 1 times [2024-11-28 03:29:26,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:29:26,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017563984] [2024-11-28 03:29:26,193 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:29:26,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:29:26,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:29:26,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1812818618] [2024-11-28 03:29:26,210 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:29:26,210 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:29:26,210 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:29:26,214 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:29:26,216 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2024-11-28 03:29:26,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:29:26,286 INFO L256 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-28 03:29:26,289 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:29:26,803 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-28 03:29:26,803 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:29:27,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:29:27,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017563984] [2024-11-28 03:29:27,103 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:29:27,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1812818618] [2024-11-28 03:29:27,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1812818618] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:29:27,103 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:29:27,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-28 03:29:27,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174346602] [2024-11-28 03:29:27,104 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 03:29:27,104 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 03:29:27,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:29:27,105 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 03:29:27,105 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:29:27,105 INFO L87 Difference]: Start difference. First operand 979 states and 1369 transitions. Second operand has 8 states, 7 states have (on average 7.428571428571429) internal successors, (52), 8 states have internal predecessors, (52), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-28 03:29:27,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:29:27,890 INFO L93 Difference]: Finished difference Result 1310 states and 1802 transitions. [2024-11-28 03:29:27,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 03:29:27,890 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.428571428571429) internal successors, (52), 8 states have internal predecessors, (52), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 86 [2024-11-28 03:29:27,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:29:27,896 INFO L225 Difference]: With dead ends: 1310 [2024-11-28 03:29:27,896 INFO L226 Difference]: Without dead ends: 1309 [2024-11-28 03:29:27,897 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:29:27,897 INFO L435 NwaCegarLoop]: 128 mSDtfsCounter, 284 mSDsluCounter, 364 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 300 SdHoareTripleChecker+Valid, 492 SdHoareTripleChecker+Invalid, 352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 03:29:27,898 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [300 Valid, 492 Invalid, 352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 03:29:27,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1309 states. [2024-11-28 03:29:28,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1309 to 985. [2024-11-28 03:29:28,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 985 states, 822 states have (on average 1.3941605839416058) internal successors, (1146), 866 states have internal predecessors, (1146), 116 states have call successors, (116), 2 states have call predecessors, (116), 2 states have return successors, (116), 116 states have call predecessors, (116), 116 states have call successors, (116) [2024-11-28 03:29:28,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 985 states to 985 states and 1378 transitions. [2024-11-28 03:29:28,050 INFO L78 Accepts]: Start accepts. Automaton has 985 states and 1378 transitions. Word has length 86 [2024-11-28 03:29:28,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:29:28,050 INFO L471 AbstractCegarLoop]: Abstraction has 985 states and 1378 transitions. [2024-11-28 03:29:28,050 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.428571428571429) internal successors, (52), 8 states have internal predecessors, (52), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-28 03:29:28,050 INFO L276 IsEmpty]: Start isEmpty. Operand 985 states and 1378 transitions. [2024-11-28 03:29:28,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-28 03:29:28,051 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:29:28,051 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:29:28,062 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Ended with exit code 0 [2024-11-28 03:29:28,251 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:29:28,252 INFO L396 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 03:29:28,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:29:28,252 INFO L85 PathProgramCache]: Analyzing trace with hash 644701283, now seen corresponding path program 1 times [2024-11-28 03:29:28,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:29:28,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017812682] [2024-11-28 03:29:28,252 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:29:28,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:29:28,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:29:28,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1971756948] [2024-11-28 03:29:28,273 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:29:28,273 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:29:28,273 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:29:28,275 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:29:28,281 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2024-11-28 03:29:28,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:29:28,347 INFO L256 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-28 03:29:28,350 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:29:29,364 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 3 proven. 8 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-28 03:29:29,364 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:29:49,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:29:49,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017812682] [2024-11-28 03:29:49,547 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:29:49,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1971756948] [2024-11-28 03:29:49,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1971756948] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:29:49,548 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:29:49,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-11-28 03:29:49,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457987441] [2024-11-28 03:29:49,548 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 03:29:49,548 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 03:29:49,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:29:49,549 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 03:29:49,549 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=277, Unknown=1, NotChecked=0, Total=342 [2024-11-28 03:29:49,549 INFO L87 Difference]: Start difference. First operand 985 states and 1378 transitions. Second operand has 13 states, 12 states have (on average 4.583333333333333) internal successors, (55), 12 states have internal predecessors, (55), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 03:29:52,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:29:52,303 INFO L93 Difference]: Finished difference Result 1108 states and 1516 transitions. [2024-11-28 03:29:52,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-28 03:29:52,304 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 4.583333333333333) internal successors, (55), 12 states have internal predecessors, (55), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 86 [2024-11-28 03:29:52,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:29:52,308 INFO L225 Difference]: With dead ends: 1108 [2024-11-28 03:29:52,308 INFO L226 Difference]: Without dead ends: 1106 [2024-11-28 03:29:52,308 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 20.4s TimeCoverageRelationStatistics Valid=164, Invalid=647, Unknown=1, NotChecked=0, Total=812 [2024-11-28 03:29:52,309 INFO L435 NwaCegarLoop]: 100 mSDtfsCounter, 440 mSDsluCounter, 662 mSDsCounter, 0 mSdLazyCounter, 1513 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 444 SdHoareTripleChecker+Valid, 762 SdHoareTripleChecker+Invalid, 1551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1513 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:29:52,309 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [444 Valid, 762 Invalid, 1551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1513 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-28 03:29:52,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1106 states. [2024-11-28 03:29:52,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1106 to 986. [2024-11-28 03:29:52,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 986 states, 823 states have (on average 1.3863912515188335) internal successors, (1141), 867 states have internal predecessors, (1141), 116 states have call successors, (116), 2 states have call predecessors, (116), 2 states have return successors, (116), 116 states have call predecessors, (116), 116 states have call successors, (116) [2024-11-28 03:29:52,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 986 states to 986 states and 1373 transitions. [2024-11-28 03:29:52,469 INFO L78 Accepts]: Start accepts. Automaton has 986 states and 1373 transitions. Word has length 86 [2024-11-28 03:29:52,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:29:52,470 INFO L471 AbstractCegarLoop]: Abstraction has 986 states and 1373 transitions. [2024-11-28 03:29:52,470 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 4.583333333333333) internal successors, (55), 12 states have internal predecessors, (55), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 03:29:52,470 INFO L276 IsEmpty]: Start isEmpty. Operand 986 states and 1373 transitions. [2024-11-28 03:29:52,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-28 03:29:52,471 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:29:52,471 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:29:52,483 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Ended with exit code 0 [2024-11-28 03:29:52,674 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:29:52,675 INFO L396 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 03:29:52,676 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:29:52,676 INFO L85 PathProgramCache]: Analyzing trace with hash 1645021571, now seen corresponding path program 1 times [2024-11-28 03:29:52,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:29:52,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310714212] [2024-11-28 03:29:52,676 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:29:52,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:29:52,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:29:52,892 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2024-11-28 03:29:52,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:29:52,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310714212] [2024-11-28 03:29:52,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310714212] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:29:52,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1311611923] [2024-11-28 03:29:52,893 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:29:52,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:29:52,893 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:29:52,895 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:29:52,898 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2024-11-28 03:29:52,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:29:52,970 INFO L256 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 03:29:52,972 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:29:53,229 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2024-11-28 03:29:53,229 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:29:56,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1311611923] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:29:56,914 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 03:29:56,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2024-11-28 03:29:56,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666055430] [2024-11-28 03:29:56,915 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 03:29:56,915 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 03:29:56,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:29:56,916 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 03:29:56,916 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=117, Unknown=1, NotChecked=0, Total=156 [2024-11-28 03:29:56,917 INFO L87 Difference]: Start difference. First operand 986 states and 1373 transitions. Second operand has 10 states, 9 states have (on average 10.777777777777779) internal successors, (97), 10 states have internal predecessors, (97), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-28 03:29:58,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:29:58,305 INFO L93 Difference]: Finished difference Result 1256 states and 1723 transitions. [2024-11-28 03:29:58,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 03:29:58,306 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.777777777777779) internal successors, (97), 10 states have internal predecessors, (97), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 87 [2024-11-28 03:29:58,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:29:58,310 INFO L225 Difference]: With dead ends: 1256 [2024-11-28 03:29:58,310 INFO L226 Difference]: Without dead ends: 1255 [2024-11-28 03:29:58,311 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=92, Invalid=249, Unknown=1, NotChecked=0, Total=342 [2024-11-28 03:29:58,311 INFO L435 NwaCegarLoop]: 134 mSDtfsCounter, 232 mSDsluCounter, 704 mSDsCounter, 0 mSdLazyCounter, 437 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 838 SdHoareTripleChecker+Invalid, 448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:29:58,312 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [232 Valid, 838 Invalid, 448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 437 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-28 03:29:58,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1255 states. [2024-11-28 03:29:58,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1255 to 1167. [2024-11-28 03:29:58,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1167 states, 982 states have (on average 1.4317718940936863) internal successors, (1406), 1026 states have internal predecessors, (1406), 138 states have call successors, (138), 2 states have call predecessors, (138), 2 states have return successors, (138), 138 states have call predecessors, (138), 138 states have call successors, (138) [2024-11-28 03:29:58,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1167 states to 1167 states and 1682 transitions. [2024-11-28 03:29:58,487 INFO L78 Accepts]: Start accepts. Automaton has 1167 states and 1682 transitions. Word has length 87 [2024-11-28 03:29:58,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:29:58,488 INFO L471 AbstractCegarLoop]: Abstraction has 1167 states and 1682 transitions. [2024-11-28 03:29:58,488 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.777777777777779) internal successors, (97), 10 states have internal predecessors, (97), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-28 03:29:58,488 INFO L276 IsEmpty]: Start isEmpty. Operand 1167 states and 1682 transitions. [2024-11-28 03:29:58,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-28 03:29:58,489 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:29:58,489 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:29:58,500 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Ended with exit code 0 [2024-11-28 03:29:58,689 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable52 [2024-11-28 03:29:58,690 INFO L396 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 03:29:58,690 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:29:58,690 INFO L85 PathProgramCache]: Analyzing trace with hash -1489096534, now seen corresponding path program 1 times [2024-11-28 03:29:58,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:29:58,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410709104] [2024-11-28 03:29:58,690 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:29:58,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:29:58,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:29:58,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1726573070] [2024-11-28 03:29:58,713 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:29:58,715 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:29:58,715 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:29:58,720 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:29:58,726 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2024-11-28 03:29:58,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:29:58,788 INFO L256 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-28 03:29:58,790 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:29:59,821 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 3 proven. 8 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-28 03:29:59,822 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:30:00,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:30:00,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410709104] [2024-11-28 03:30:00,261 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:30:00,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1726573070] [2024-11-28 03:30:00,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1726573070] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:30:00,261 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:30:00,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-28 03:30:00,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035233890] [2024-11-28 03:30:00,261 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 03:30:00,261 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 03:30:00,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:30:00,262 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 03:30:00,262 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=226, Unknown=0, NotChecked=0, Total=272 [2024-11-28 03:30:00,262 INFO L87 Difference]: Start difference. First operand 1167 states and 1682 transitions. Second operand has 12 states, 11 states have (on average 5.090909090909091) internal successors, (56), 11 states have internal predecessors, (56), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 03:30:02,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:30:02,569 INFO L93 Difference]: Finished difference Result 1289 states and 1818 transitions. [2024-11-28 03:30:02,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 03:30:02,569 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.090909090909091) internal successors, (56), 11 states have internal predecessors, (56), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 87 [2024-11-28 03:30:02,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:30:02,572 INFO L225 Difference]: With dead ends: 1289 [2024-11-28 03:30:02,572 INFO L226 Difference]: Without dead ends: 1287 [2024-11-28 03:30:02,573 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=106, Invalid=494, Unknown=0, NotChecked=0, Total=600 [2024-11-28 03:30:02,573 INFO L435 NwaCegarLoop]: 77 mSDtfsCounter, 533 mSDsluCounter, 491 mSDsCounter, 0 mSdLazyCounter, 1193 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 537 SdHoareTripleChecker+Valid, 568 SdHoareTripleChecker+Invalid, 1236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 1193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-28 03:30:02,573 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [537 Valid, 568 Invalid, 1236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 1193 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-28 03:30:02,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1287 states. [2024-11-28 03:30:02,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1287 to 1169. [2024-11-28 03:30:02,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1169 states, 984 states have (on average 1.4308943089430894) internal successors, (1408), 1028 states have internal predecessors, (1408), 138 states have call successors, (138), 2 states have call predecessors, (138), 2 states have return successors, (138), 138 states have call predecessors, (138), 138 states have call successors, (138) [2024-11-28 03:30:02,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1169 states to 1169 states and 1684 transitions. [2024-11-28 03:30:02,746 INFO L78 Accepts]: Start accepts. Automaton has 1169 states and 1684 transitions. Word has length 87 [2024-11-28 03:30:02,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:30:02,746 INFO L471 AbstractCegarLoop]: Abstraction has 1169 states and 1684 transitions. [2024-11-28 03:30:02,746 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.090909090909091) internal successors, (56), 11 states have internal predecessors, (56), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 03:30:02,747 INFO L276 IsEmpty]: Start isEmpty. Operand 1169 states and 1684 transitions. [2024-11-28 03:30:02,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-28 03:30:02,747 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:30:02,747 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:30:02,754 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Ended with exit code 0 [2024-11-28 03:30:02,947 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable53 [2024-11-28 03:30:02,948 INFO L396 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 03:30:02,948 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:30:02,948 INFO L85 PathProgramCache]: Analyzing trace with hash -543938699, now seen corresponding path program 1 times [2024-11-28 03:30:02,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:30:02,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432666650] [2024-11-28 03:30:02,948 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:30:02,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:30:02,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:30:02,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [823379055] [2024-11-28 03:30:02,966 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:30:02,966 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:30:02,966 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:30:02,974 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:30:02,976 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2024-11-28 03:30:03,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:30:03,045 INFO L256 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-28 03:30:03,047 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:30:03,725 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-28 03:30:03,725 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:30:20,196 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-28 03:30:20,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:30:20,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432666650] [2024-11-28 03:30:20,197 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:30:20,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [823379055] [2024-11-28 03:30:20,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [823379055] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:30:20,197 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 03:30:20,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2024-11-28 03:30:20,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32435659] [2024-11-28 03:30:20,197 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 03:30:20,198 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-28 03:30:20,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:30:20,198 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-28 03:30:20,198 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=179, Unknown=4, NotChecked=0, Total=240 [2024-11-28 03:30:20,199 INFO L87 Difference]: Start difference. First operand 1169 states and 1684 transitions. Second operand has 16 states, 15 states have (on average 6.6) internal successors, (99), 16 states have internal predecessors, (99), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-28 03:30:22,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:30:22,694 INFO L93 Difference]: Finished difference Result 1811 states and 2556 transitions. [2024-11-28 03:30:22,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-28 03:30:22,694 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 6.6) internal successors, (99), 16 states have internal predecessors, (99), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 88 [2024-11-28 03:30:22,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:30:22,698 INFO L225 Difference]: With dead ends: 1811 [2024-11-28 03:30:22,698 INFO L226 Difference]: Without dead ends: 1810 [2024-11-28 03:30:22,699 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 16.5s TimeCoverageRelationStatistics Valid=110, Invalid=348, Unknown=4, NotChecked=0, Total=462 [2024-11-28 03:30:22,699 INFO L435 NwaCegarLoop]: 148 mSDtfsCounter, 910 mSDsluCounter, 885 mSDsCounter, 0 mSdLazyCounter, 1115 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 926 SdHoareTripleChecker+Valid, 1033 SdHoareTripleChecker+Invalid, 1211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 1115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:30:22,700 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [926 Valid, 1033 Invalid, 1211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 1115 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-28 03:30:22,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1810 states. [2024-11-28 03:30:22,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1810 to 1277. [2024-11-28 03:30:22,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1277 states, 1078 states have (on average 1.4350649350649352) internal successors, (1547), 1122 states have internal predecessors, (1547), 152 states have call successors, (152), 2 states have call predecessors, (152), 2 states have return successors, (152), 152 states have call predecessors, (152), 152 states have call successors, (152) [2024-11-28 03:30:22,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1277 states to 1277 states and 1851 transitions. [2024-11-28 03:30:22,931 INFO L78 Accepts]: Start accepts. Automaton has 1277 states and 1851 transitions. Word has length 88 [2024-11-28 03:30:22,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:30:22,932 INFO L471 AbstractCegarLoop]: Abstraction has 1277 states and 1851 transitions. [2024-11-28 03:30:22,932 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 6.6) internal successors, (99), 16 states have internal predecessors, (99), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-28 03:30:22,932 INFO L276 IsEmpty]: Start isEmpty. Operand 1277 states and 1851 transitions. [2024-11-28 03:30:22,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-28 03:30:22,933 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:30:22,933 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:30:22,944 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Forceful destruction successful, exit code 0 [2024-11-28 03:30:23,136 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54,47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:30:23,137 INFO L396 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 03:30:23,137 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:30:23,137 INFO L85 PathProgramCache]: Analyzing trace with hash 317769669, now seen corresponding path program 1 times [2024-11-28 03:30:23,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:30:23,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721891077] [2024-11-28 03:30:23,137 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:30:23,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:30:23,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:30:23,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [788900993] [2024-11-28 03:30:23,156 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:30:23,156 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:30:23,156 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:30:23,158 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:30:23,162 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Waiting until timeout for monitored process [2024-11-28 03:30:23,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:30:23,229 INFO L256 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-28 03:30:23,232 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:30:24,647 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-28 03:30:24,647 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:30:24,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:30:24,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721891077] [2024-11-28 03:30:24,922 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:30:24,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [788900993] [2024-11-28 03:30:24,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [788900993] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:30:24,922 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:30:24,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-11-28 03:30:24,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117284775] [2024-11-28 03:30:24,922 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 03:30:24,922 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 03:30:24,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:30:24,923 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 03:30:24,923 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2024-11-28 03:30:24,923 INFO L87 Difference]: Start difference. First operand 1277 states and 1851 transitions. Second operand has 13 states, 12 states have (on average 4.583333333333333) internal successors, (55), 13 states have internal predecessors, (55), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 03:30:27,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:30:27,505 INFO L93 Difference]: Finished difference Result 1408 states and 1999 transitions. [2024-11-28 03:30:27,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 03:30:27,505 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 4.583333333333333) internal successors, (55), 13 states have internal predecessors, (55), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 89 [2024-11-28 03:30:27,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:30:27,509 INFO L225 Difference]: With dead ends: 1408 [2024-11-28 03:30:27,509 INFO L226 Difference]: Without dead ends: 1407 [2024-11-28 03:30:27,509 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=100, Invalid=362, Unknown=0, NotChecked=0, Total=462 [2024-11-28 03:30:27,510 INFO L435 NwaCegarLoop]: 133 mSDtfsCounter, 323 mSDsluCounter, 648 mSDsCounter, 0 mSdLazyCounter, 1240 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 335 SdHoareTripleChecker+Valid, 781 SdHoareTripleChecker+Invalid, 1267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:30:27,510 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [335 Valid, 781 Invalid, 1267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1240 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-28 03:30:27,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1407 states. [2024-11-28 03:30:27,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1407 to 1283. [2024-11-28 03:30:27,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1283 states, 1084 states have (on average 1.4326568265682658) internal successors, (1553), 1128 states have internal predecessors, (1553), 152 states have call successors, (152), 2 states have call predecessors, (152), 2 states have return successors, (152), 152 states have call predecessors, (152), 152 states have call successors, (152) [2024-11-28 03:30:27,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1283 states to 1283 states and 1857 transitions. [2024-11-28 03:30:27,709 INFO L78 Accepts]: Start accepts. Automaton has 1283 states and 1857 transitions. Word has length 89 [2024-11-28 03:30:27,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:30:27,709 INFO L471 AbstractCegarLoop]: Abstraction has 1283 states and 1857 transitions. [2024-11-28 03:30:27,709 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 4.583333333333333) internal successors, (55), 13 states have internal predecessors, (55), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 03:30:27,710 INFO L276 IsEmpty]: Start isEmpty. Operand 1283 states and 1857 transitions. [2024-11-28 03:30:27,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-28 03:30:27,710 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:30:27,710 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:30:27,718 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Ended with exit code 0 [2024-11-28 03:30:27,910 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55,48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:30:27,911 INFO L396 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 03:30:27,911 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:30:27,911 INFO L85 PathProgramCache]: Analyzing trace with hash 493146693, now seen corresponding path program 1 times [2024-11-28 03:30:27,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:30:27,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536969518] [2024-11-28 03:30:27,911 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:30:27,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:30:27,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:30:27,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [881338663] [2024-11-28 03:30:27,926 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:30:27,926 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:30:27,926 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:30:27,928 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:30:27,933 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Waiting until timeout for monitored process [2024-11-28 03:30:27,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:30:27,999 INFO L256 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-28 03:30:28,001 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:30:29,364 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-28 03:30:29,364 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:30:30,670 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-28 03:30:30,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:30:30,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536969518] [2024-11-28 03:30:30,670 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:30:30,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [881338663] [2024-11-28 03:30:30,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [881338663] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:30:30,671 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 03:30:30,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20 [2024-11-28 03:30:30,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341791590] [2024-11-28 03:30:30,671 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 03:30:30,671 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-28 03:30:30,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:30:30,672 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-28 03:30:30,672 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=348, Unknown=0, NotChecked=0, Total=420 [2024-11-28 03:30:30,672 INFO L87 Difference]: Start difference. First operand 1283 states and 1857 transitions. Second operand has 21 states, 20 states have (on average 5.35) internal successors, (107), 21 states have internal predecessors, (107), 5 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (16), 4 states have call predecessors, (16), 5 states have call successors, (16) [2024-11-28 03:30:40,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:30:40,867 INFO L93 Difference]: Finished difference Result 1410 states and 1993 transitions. [2024-11-28 03:30:40,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-28 03:30:40,868 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 5.35) internal successors, (107), 21 states have internal predecessors, (107), 5 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (16), 4 states have call predecessors, (16), 5 states have call successors, (16) Word has length 89 [2024-11-28 03:30:40,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:30:40,872 INFO L225 Difference]: With dead ends: 1410 [2024-11-28 03:30:40,872 INFO L226 Difference]: Without dead ends: 1409 [2024-11-28 03:30:40,873 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 312 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=379, Invalid=1427, Unknown=0, NotChecked=0, Total=1806 [2024-11-28 03:30:40,873 INFO L435 NwaCegarLoop]: 74 mSDtfsCounter, 854 mSDsluCounter, 489 mSDsCounter, 0 mSdLazyCounter, 2135 mSolverCounterSat, 142 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 854 SdHoareTripleChecker+Valid, 563 SdHoareTripleChecker+Invalid, 2277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 142 IncrementalHoareTripleChecker+Valid, 2135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:30:40,873 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [854 Valid, 563 Invalid, 2277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [142 Valid, 2135 Invalid, 0 Unknown, 0 Unchecked, 8.0s Time] [2024-11-28 03:30:40,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1409 states. [2024-11-28 03:30:41,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1409 to 1282. [2024-11-28 03:30:41,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1282 states, 1084 states have (on average 1.4086715867158672) internal successors, (1527), 1127 states have internal predecessors, (1527), 152 states have call successors, (152), 2 states have call predecessors, (152), 2 states have return successors, (152), 152 states have call predecessors, (152), 152 states have call successors, (152) [2024-11-28 03:30:41,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1282 states to 1282 states and 1831 transitions. [2024-11-28 03:30:41,097 INFO L78 Accepts]: Start accepts. Automaton has 1282 states and 1831 transitions. Word has length 89 [2024-11-28 03:30:41,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:30:41,098 INFO L471 AbstractCegarLoop]: Abstraction has 1282 states and 1831 transitions. [2024-11-28 03:30:41,098 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 5.35) internal successors, (107), 21 states have internal predecessors, (107), 5 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (16), 4 states have call predecessors, (16), 5 states have call successors, (16) [2024-11-28 03:30:41,098 INFO L276 IsEmpty]: Start isEmpty. Operand 1282 states and 1831 transitions. [2024-11-28 03:30:41,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-28 03:30:41,098 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:30:41,098 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:30:41,106 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Ended with exit code 0 [2024-11-28 03:30:41,299 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable56 [2024-11-28 03:30:41,299 INFO L396 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 03:30:41,299 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:30:41,299 INFO L85 PathProgramCache]: Analyzing trace with hash 1260925303, now seen corresponding path program 1 times [2024-11-28 03:30:41,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:30:41,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129224904] [2024-11-28 03:30:41,299 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:30:41,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:30:41,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:30:41,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [908189295] [2024-11-28 03:30:41,313 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:30:41,313 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:30:41,313 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:30:41,315 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:30:41,318 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Waiting until timeout for monitored process [2024-11-28 03:30:41,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:30:41,379 INFO L256 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-28 03:30:41,381 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:30:41,791 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-28 03:30:41,791 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:30:42,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:30:42,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129224904] [2024-11-28 03:30:42,092 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:30:42,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [908189295] [2024-11-28 03:30:42,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [908189295] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:30:42,092 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:30:42,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-28 03:30:42,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125638038] [2024-11-28 03:30:42,092 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 03:30:42,093 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 03:30:42,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:30:42,093 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 03:30:42,093 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2024-11-28 03:30:42,093 INFO L87 Difference]: Start difference. First operand 1282 states and 1831 transitions. Second operand has 9 states, 8 states have (on average 7.0) internal successors, (56), 9 states have internal predecessors, (56), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-28 03:30:43,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:30:43,275 INFO L93 Difference]: Finished difference Result 1568 states and 2193 transitions. [2024-11-28 03:30:43,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 03:30:43,275 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.0) internal successors, (56), 9 states have internal predecessors, (56), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 90 [2024-11-28 03:30:43,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:30:43,279 INFO L225 Difference]: With dead ends: 1568 [2024-11-28 03:30:43,280 INFO L226 Difference]: Without dead ends: 1567 [2024-11-28 03:30:43,280 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2024-11-28 03:30:43,281 INFO L435 NwaCegarLoop]: 178 mSDtfsCounter, 253 mSDsluCounter, 517 mSDsCounter, 0 mSdLazyCounter, 515 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 695 SdHoareTripleChecker+Invalid, 525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 515 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 03:30:43,281 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [261 Valid, 695 Invalid, 525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 515 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 03:30:43,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1567 states. [2024-11-28 03:30:43,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1567 to 1294. [2024-11-28 03:30:43,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1294 states, 1096 states have (on average 1.407846715328467) internal successors, (1543), 1139 states have internal predecessors, (1543), 152 states have call successors, (152), 2 states have call predecessors, (152), 2 states have return successors, (152), 152 states have call predecessors, (152), 152 states have call successors, (152) [2024-11-28 03:30:43,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1294 states to 1294 states and 1847 transitions. [2024-11-28 03:30:43,562 INFO L78 Accepts]: Start accepts. Automaton has 1294 states and 1847 transitions. Word has length 90 [2024-11-28 03:30:43,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:30:43,562 INFO L471 AbstractCegarLoop]: Abstraction has 1294 states and 1847 transitions. [2024-11-28 03:30:43,562 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.0) internal successors, (56), 9 states have internal predecessors, (56), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-28 03:30:43,563 INFO L276 IsEmpty]: Start isEmpty. Operand 1294 states and 1847 transitions. [2024-11-28 03:30:43,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-28 03:30:43,563 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:30:43,564 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:30:43,575 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Forceful destruction successful, exit code 0 [2024-11-28 03:30:43,764 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable57 [2024-11-28 03:30:43,764 INFO L396 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 03:30:43,765 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:30:43,765 INFO L85 PathProgramCache]: Analyzing trace with hash 433978887, now seen corresponding path program 1 times [2024-11-28 03:30:43,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:30:43,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559601634] [2024-11-28 03:30:43,765 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:30:43,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:30:43,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:30:43,942 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2024-11-28 03:30:43,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:30:43,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559601634] [2024-11-28 03:30:43,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559601634] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:30:43,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [182544044] [2024-11-28 03:30:43,943 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:30:43,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:30:43,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:30:43,945 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:30:43,950 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Waiting until timeout for monitored process [2024-11-28 03:30:44,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:30:44,032 INFO L256 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 03:30:44,034 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:30:44,396 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2024-11-28 03:30:44,396 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:30:44,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [182544044] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:30:44,746 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 03:30:44,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2024-11-28 03:30:44,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200359906] [2024-11-28 03:30:44,747 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 03:30:44,747 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 03:30:44,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:30:44,748 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 03:30:44,748 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-11-28 03:30:44,748 INFO L87 Difference]: Start difference. First operand 1294 states and 1847 transitions. Second operand has 10 states, 9 states have (on average 11.666666666666666) internal successors, (105), 10 states have internal predecessors, (105), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-28 03:30:45,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:30:45,745 INFO L93 Difference]: Finished difference Result 1340 states and 1858 transitions. [2024-11-28 03:30:45,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 03:30:45,747 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 11.666666666666666) internal successors, (105), 10 states have internal predecessors, (105), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 91 [2024-11-28 03:30:45,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:30:45,751 INFO L225 Difference]: With dead ends: 1340 [2024-11-28 03:30:45,751 INFO L226 Difference]: Without dead ends: 1339 [2024-11-28 03:30:45,752 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2024-11-28 03:30:45,752 INFO L435 NwaCegarLoop]: 168 mSDtfsCounter, 96 mSDsluCounter, 673 mSDsCounter, 0 mSdLazyCounter, 277 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 841 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 03:30:45,753 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 841 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 277 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 03:30:45,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1339 states. [2024-11-28 03:30:46,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1339 to 1294. [2024-11-28 03:30:46,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1294 states, 1096 states have (on average 1.4069343065693432) internal successors, (1542), 1139 states have internal predecessors, (1542), 152 states have call successors, (152), 2 states have call predecessors, (152), 2 states have return successors, (152), 152 states have call predecessors, (152), 152 states have call successors, (152) [2024-11-28 03:30:46,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1294 states to 1294 states and 1846 transitions. [2024-11-28 03:30:46,127 INFO L78 Accepts]: Start accepts. Automaton has 1294 states and 1846 transitions. Word has length 91 [2024-11-28 03:30:46,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:30:46,127 INFO L471 AbstractCegarLoop]: Abstraction has 1294 states and 1846 transitions. [2024-11-28 03:30:46,128 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 11.666666666666666) internal successors, (105), 10 states have internal predecessors, (105), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-28 03:30:46,128 INFO L276 IsEmpty]: Start isEmpty. Operand 1294 states and 1846 transitions. [2024-11-28 03:30:46,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-28 03:30:46,129 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:30:46,129 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:30:46,140 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Forceful destruction successful, exit code 0 [2024-11-28 03:30:46,329 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable58 [2024-11-28 03:30:46,330 INFO L396 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 03:30:46,330 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:30:46,330 INFO L85 PathProgramCache]: Analyzing trace with hash -2041313426, now seen corresponding path program 1 times [2024-11-28 03:30:46,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:30:46,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453833601] [2024-11-28 03:30:46,330 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:30:46,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:30:46,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:30:46,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1238639440] [2024-11-28 03:30:46,345 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:30:46,345 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:30:46,345 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:30:46,348 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:30:46,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Waiting until timeout for monitored process [2024-11-28 03:30:46,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:30:46,429 INFO L256 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-28 03:30:46,432 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:30:47,331 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-28 03:30:47,331 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:30:47,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:30:47,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453833601] [2024-11-28 03:30:47,740 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:30:47,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1238639440] [2024-11-28 03:30:47,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1238639440] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:30:47,740 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:30:47,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-28 03:30:47,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241223818] [2024-11-28 03:30:47,741 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 03:30:47,741 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 03:30:47,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:30:47,741 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 03:30:47,741 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2024-11-28 03:30:47,742 INFO L87 Difference]: Start difference. First operand 1294 states and 1846 transitions. Second operand has 9 states, 8 states have (on average 7.125) internal successors, (57), 9 states have internal predecessors, (57), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-28 03:30:50,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:30:50,062 INFO L93 Difference]: Finished difference Result 1411 states and 1979 transitions. [2024-11-28 03:30:50,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 03:30:50,063 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.125) internal successors, (57), 9 states have internal predecessors, (57), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 91 [2024-11-28 03:30:50,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:30:50,066 INFO L225 Difference]: With dead ends: 1411 [2024-11-28 03:30:50,066 INFO L226 Difference]: Without dead ends: 1409 [2024-11-28 03:30:50,066 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=48, Invalid=224, Unknown=0, NotChecked=0, Total=272 [2024-11-28 03:30:50,067 INFO L435 NwaCegarLoop]: 113 mSDtfsCounter, 277 mSDsluCounter, 429 mSDsCounter, 0 mSdLazyCounter, 1218 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 542 SdHoareTripleChecker+Invalid, 1243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-28 03:30:50,067 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [285 Valid, 542 Invalid, 1243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1218 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-28 03:30:50,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1409 states. [2024-11-28 03:30:50,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1409 to 1298. [2024-11-28 03:30:50,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1298 states, 1100 states have (on average 1.4054545454545455) internal successors, (1546), 1143 states have internal predecessors, (1546), 152 states have call successors, (152), 2 states have call predecessors, (152), 2 states have return successors, (152), 152 states have call predecessors, (152), 152 states have call successors, (152) [2024-11-28 03:30:50,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1298 states to 1298 states and 1850 transitions. [2024-11-28 03:30:50,295 INFO L78 Accepts]: Start accepts. Automaton has 1298 states and 1850 transitions. Word has length 91 [2024-11-28 03:30:50,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:30:50,295 INFO L471 AbstractCegarLoop]: Abstraction has 1298 states and 1850 transitions. [2024-11-28 03:30:50,295 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.125) internal successors, (57), 9 states have internal predecessors, (57), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-28 03:30:50,295 INFO L276 IsEmpty]: Start isEmpty. Operand 1298 states and 1850 transitions. [2024-11-28 03:30:50,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-28 03:30:50,296 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:30:50,296 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:30:50,305 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Forceful destruction successful, exit code 0 [2024-11-28 03:30:50,496 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59 [2024-11-28 03:30:50,497 INFO L396 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 03:30:50,497 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:30:50,497 INFO L85 PathProgramCache]: Analyzing trace with hash 568443769, now seen corresponding path program 1 times [2024-11-28 03:30:50,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:30:50,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296309314] [2024-11-28 03:30:50,497 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:30:50,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:30:50,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:30:50,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [332930059] [2024-11-28 03:30:50,515 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:30:50,515 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:30:50,515 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:30:50,518 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:30:50,521 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Waiting until timeout for monitored process [2024-11-28 03:30:50,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:30:50,592 INFO L256 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-28 03:30:50,594 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:30:51,265 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-28 03:30:51,265 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:30:51,677 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-28 03:30:51,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:30:51,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296309314] [2024-11-28 03:30:51,678 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:30:51,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [332930059] [2024-11-28 03:30:51,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [332930059] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:30:51,678 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 03:30:51,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2024-11-28 03:30:51,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550056303] [2024-11-28 03:30:51,678 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 03:30:51,679 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-28 03:30:51,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:30:51,679 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-28 03:30:51,679 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2024-11-28 03:30:51,679 INFO L87 Difference]: Start difference. First operand 1298 states and 1850 transitions. Second operand has 18 states, 17 states have (on average 6.294117647058823) internal successors, (107), 18 states have internal predecessors, (107), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-28 03:30:55,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:30:55,550 INFO L93 Difference]: Finished difference Result 1889 states and 2617 transitions. [2024-11-28 03:30:55,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-28 03:30:55,550 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 6.294117647058823) internal successors, (107), 18 states have internal predecessors, (107), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 92 [2024-11-28 03:30:55,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:30:55,556 INFO L225 Difference]: With dead ends: 1889 [2024-11-28 03:30:55,556 INFO L226 Difference]: Without dead ends: 1888 [2024-11-28 03:30:55,557 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 189 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=209, Invalid=603, Unknown=0, NotChecked=0, Total=812 [2024-11-28 03:30:55,558 INFO L435 NwaCegarLoop]: 157 mSDtfsCounter, 1220 mSDsluCounter, 1314 mSDsCounter, 0 mSdLazyCounter, 1517 mSolverCounterSat, 125 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1244 SdHoareTripleChecker+Valid, 1471 SdHoareTripleChecker+Invalid, 1642 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 125 IncrementalHoareTripleChecker+Valid, 1517 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:30:55,558 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1244 Valid, 1471 Invalid, 1642 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [125 Valid, 1517 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-28 03:30:55,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1888 states. [2024-11-28 03:30:55,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1888 to 1341. [2024-11-28 03:30:55,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1341 states, 1139 states have (on average 1.4108867427568041) internal successors, (1607), 1182 states have internal predecessors, (1607), 156 states have call successors, (156), 2 states have call predecessors, (156), 2 states have return successors, (156), 156 states have call predecessors, (156), 156 states have call successors, (156) [2024-11-28 03:30:55,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1341 states to 1341 states and 1919 transitions. [2024-11-28 03:30:55,988 INFO L78 Accepts]: Start accepts. Automaton has 1341 states and 1919 transitions. Word has length 92 [2024-11-28 03:30:55,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:30:55,988 INFO L471 AbstractCegarLoop]: Abstraction has 1341 states and 1919 transitions. [2024-11-28 03:30:55,988 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 6.294117647058823) internal successors, (107), 18 states have internal predecessors, (107), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-28 03:30:55,989 INFO L276 IsEmpty]: Start isEmpty. Operand 1341 states and 1919 transitions. [2024-11-28 03:30:55,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-28 03:30:55,990 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:30:55,990 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:30:56,001 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Forceful destruction successful, exit code 0 [2024-11-28 03:30:56,193 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:30:56,194 INFO L396 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr46ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 03:30:56,194 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:30:56,195 INFO L85 PathProgramCache]: Analyzing trace with hash 1097857744, now seen corresponding path program 1 times [2024-11-28 03:30:56,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:30:56,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76105041] [2024-11-28 03:30:56,195 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:30:56,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:30:56,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:30:56,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [631989115] [2024-11-28 03:30:56,218 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:30:56,218 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:30:56,218 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:30:56,221 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:30:56,224 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Waiting until timeout for monitored process [2024-11-28 03:30:56,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:30:56,291 INFO L256 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-28 03:30:56,292 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:30:57,588 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 3 proven. 8 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-28 03:30:57,589 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:31:10,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:31:10,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76105041] [2024-11-28 03:31:10,947 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:31:10,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [631989115] [2024-11-28 03:31:10,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [631989115] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:31:10,947 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:31:10,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-28 03:31:10,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869417795] [2024-11-28 03:31:10,948 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 03:31:10,948 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 03:31:10,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:31:10,948 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 03:31:10,948 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=209, Unknown=3, NotChecked=0, Total=272 [2024-11-28 03:31:10,949 INFO L87 Difference]: Start difference. First operand 1341 states and 1919 transitions. Second operand has 12 states, 11 states have (on average 5.636363636363637) internal successors, (62), 11 states have internal predecessors, (62), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 03:31:13,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:31:13,199 INFO L93 Difference]: Finished difference Result 1579 states and 2201 transitions. [2024-11-28 03:31:13,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 03:31:13,200 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.636363636363637) internal successors, (62), 11 states have internal predecessors, (62), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 93 [2024-11-28 03:31:13,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:31:13,203 INFO L225 Difference]: With dead ends: 1579 [2024-11-28 03:31:13,203 INFO L226 Difference]: Without dead ends: 1577 [2024-11-28 03:31:13,204 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 13.5s TimeCoverageRelationStatistics Valid=125, Invalid=378, Unknown=3, NotChecked=0, Total=506 [2024-11-28 03:31:13,205 INFO L435 NwaCegarLoop]: 112 mSDtfsCounter, 422 mSDsluCounter, 664 mSDsCounter, 0 mSdLazyCounter, 1058 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 438 SdHoareTripleChecker+Valid, 776 SdHoareTripleChecker+Invalid, 1083 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1058 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-28 03:31:13,205 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [438 Valid, 776 Invalid, 1083 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1058 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-28 03:31:13,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1577 states. [2024-11-28 03:31:13,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1577 to 1342. [2024-11-28 03:31:13,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1342 states, 1140 states have (on average 1.4096491228070176) internal successors, (1607), 1183 states have internal predecessors, (1607), 156 states have call successors, (156), 2 states have call predecessors, (156), 2 states have return successors, (156), 156 states have call predecessors, (156), 156 states have call successors, (156) [2024-11-28 03:31:13,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1342 states to 1342 states and 1919 transitions. [2024-11-28 03:31:13,472 INFO L78 Accepts]: Start accepts. Automaton has 1342 states and 1919 transitions. Word has length 93 [2024-11-28 03:31:13,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:31:13,473 INFO L471 AbstractCegarLoop]: Abstraction has 1342 states and 1919 transitions. [2024-11-28 03:31:13,473 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.636363636363637) internal successors, (62), 11 states have internal predecessors, (62), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 03:31:13,473 INFO L276 IsEmpty]: Start isEmpty. Operand 1342 states and 1919 transitions. [2024-11-28 03:31:13,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-28 03:31:13,474 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:31:13,474 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:31:13,481 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Ended with exit code 0 [2024-11-28 03:31:13,674 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable61 [2024-11-28 03:31:13,674 INFO L396 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 03:31:13,675 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:31:13,675 INFO L85 PathProgramCache]: Analyzing trace with hash -921185800, now seen corresponding path program 1 times [2024-11-28 03:31:13,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:31:13,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611200939] [2024-11-28 03:31:13,675 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:31:13,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:31:13,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:31:13,766 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-28 03:31:13,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:31:13,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611200939] [2024-11-28 03:31:13,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611200939] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:31:13,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:31:13,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:31:13,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866950102] [2024-11-28 03:31:13,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:31:13,767 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:31:13,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:31:13,768 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:31:13,768 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:31:13,768 INFO L87 Difference]: Start difference. First operand 1342 states and 1919 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-28 03:31:14,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:31:14,593 INFO L93 Difference]: Finished difference Result 2415 states and 3494 transitions. [2024-11-28 03:31:14,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:31:14,594 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 95 [2024-11-28 03:31:14,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:31:14,599 INFO L225 Difference]: With dead ends: 2415 [2024-11-28 03:31:14,599 INFO L226 Difference]: Without dead ends: 1388 [2024-11-28 03:31:14,601 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:31:14,602 INFO L435 NwaCegarLoop]: 109 mSDtfsCounter, 18 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:31:14,602 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 389 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 03:31:14,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1388 states. [2024-11-28 03:31:14,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1388 to 1363. [2024-11-28 03:31:14,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1363 states, 1161 states have (on average 1.4056847545219637) internal successors, (1632), 1204 states have internal predecessors, (1632), 156 states have call successors, (156), 2 states have call predecessors, (156), 2 states have return successors, (156), 156 states have call predecessors, (156), 156 states have call successors, (156) [2024-11-28 03:31:14,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1363 states to 1363 states and 1944 transitions. [2024-11-28 03:31:14,995 INFO L78 Accepts]: Start accepts. Automaton has 1363 states and 1944 transitions. Word has length 95 [2024-11-28 03:31:14,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:31:14,996 INFO L471 AbstractCegarLoop]: Abstraction has 1363 states and 1944 transitions. [2024-11-28 03:31:14,996 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-28 03:31:14,996 INFO L276 IsEmpty]: Start isEmpty. Operand 1363 states and 1944 transitions. [2024-11-28 03:31:14,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-28 03:31:14,996 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:31:14,997 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:31:14,997 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2024-11-28 03:31:14,997 INFO L396 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 03:31:14,997 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:31:14,997 INFO L85 PathProgramCache]: Analyzing trace with hash 813617101, now seen corresponding path program 1 times [2024-11-28 03:31:14,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:31:14,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396713130] [2024-11-28 03:31:14,997 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:31:14,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:31:15,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:31:15,180 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 4 proven. 11 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-28 03:31:15,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:31:15,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396713130] [2024-11-28 03:31:15,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [396713130] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:31:15,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [226792987] [2024-11-28 03:31:15,180 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:31:15,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:31:15,180 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:31:15,182 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:31:15,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Waiting until timeout for monitored process [2024-11-28 03:31:15,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:31:15,252 INFO L256 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 03:31:15,254 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:31:15,458 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 4 proven. 11 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-28 03:31:15,458 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:31:15,732 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 4 proven. 11 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-28 03:31:15,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [226792987] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:31:15,733 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:31:15,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 8 [2024-11-28 03:31:15,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405504803] [2024-11-28 03:31:15,733 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:31:15,733 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 03:31:15,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:31:15,734 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 03:31:15,734 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:31:15,734 INFO L87 Difference]: Start difference. First operand 1363 states and 1944 transitions. Second operand has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-28 03:31:16,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:31:16,994 INFO L93 Difference]: Finished difference Result 1888 states and 2663 transitions. [2024-11-28 03:31:16,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-28 03:31:16,995 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 94 [2024-11-28 03:31:16,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:31:16,999 INFO L225 Difference]: With dead ends: 1888 [2024-11-28 03:31:16,999 INFO L226 Difference]: Without dead ends: 1861 [2024-11-28 03:31:17,000 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 183 SyntacticMatches, 7 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=110, Invalid=310, Unknown=0, NotChecked=0, Total=420 [2024-11-28 03:31:17,001 INFO L435 NwaCegarLoop]: 187 mSDtfsCounter, 544 mSDsluCounter, 836 mSDsCounter, 0 mSdLazyCounter, 422 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 548 SdHoareTripleChecker+Valid, 1023 SdHoareTripleChecker+Invalid, 468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 03:31:17,001 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [548 Valid, 1023 Invalid, 468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 422 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 03:31:17,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1861 states. [2024-11-28 03:31:17,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1861 to 1390. [2024-11-28 03:31:17,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1390 states, 1188 states have (on average 1.4074074074074074) internal successors, (1672), 1231 states have internal predecessors, (1672), 156 states have call successors, (156), 2 states have call predecessors, (156), 2 states have return successors, (156), 156 states have call predecessors, (156), 156 states have call successors, (156) [2024-11-28 03:31:17,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1390 states to 1390 states and 1984 transitions. [2024-11-28 03:31:17,271 INFO L78 Accepts]: Start accepts. Automaton has 1390 states and 1984 transitions. Word has length 94 [2024-11-28 03:31:17,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:31:17,272 INFO L471 AbstractCegarLoop]: Abstraction has 1390 states and 1984 transitions. [2024-11-28 03:31:17,272 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-28 03:31:17,272 INFO L276 IsEmpty]: Start isEmpty. Operand 1390 states and 1984 transitions. [2024-11-28 03:31:17,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-28 03:31:17,273 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:31:17,273 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:31:17,284 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Ended with exit code 0 [2024-11-28 03:31:17,473 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 55 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable63 [2024-11-28 03:31:17,474 INFO L396 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr47ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 03:31:17,474 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:31:17,474 INFO L85 PathProgramCache]: Analyzing trace with hash -326148117, now seen corresponding path program 1 times [2024-11-28 03:31:17,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:31:17,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540667737] [2024-11-28 03:31:17,474 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:31:17,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:31:17,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:31:17,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [747611126] [2024-11-28 03:31:17,486 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:31:17,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:31:17,486 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:31:17,490 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:31:17,497 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Waiting until timeout for monitored process [2024-11-28 03:31:17,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:31:17,556 INFO L256 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-28 03:31:17,557 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:31:18,854 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 3 proven. 8 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-28 03:31:18,854 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:31:40,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:31:40,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540667737] [2024-11-28 03:31:40,805 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:31:40,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [747611126] [2024-11-28 03:31:40,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [747611126] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:31:40,805 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:31:40,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-28 03:31:40,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259061412] [2024-11-28 03:31:40,805 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 03:31:40,805 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 03:31:40,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:31:40,806 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 03:31:40,806 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=210, Unknown=6, NotChecked=0, Total=272 [2024-11-28 03:31:40,807 INFO L87 Difference]: Start difference. First operand 1390 states and 1984 transitions. Second operand has 12 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 11 states have internal predecessors, (63), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 03:31:43,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:31:43,125 INFO L93 Difference]: Finished difference Result 1459 states and 2044 transitions. [2024-11-28 03:31:43,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 03:31:43,126 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 11 states have internal predecessors, (63), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 94 [2024-11-28 03:31:43,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:31:43,131 INFO L225 Difference]: With dead ends: 1459 [2024-11-28 03:31:43,131 INFO L226 Difference]: Without dead ends: 1457 [2024-11-28 03:31:43,132 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 21.6s TimeCoverageRelationStatistics Valid=97, Invalid=317, Unknown=6, NotChecked=0, Total=420 [2024-11-28 03:31:43,132 INFO L435 NwaCegarLoop]: 110 mSDtfsCounter, 325 mSDsluCounter, 636 mSDsCounter, 0 mSdLazyCounter, 1085 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 341 SdHoareTripleChecker+Valid, 746 SdHoareTripleChecker+Invalid, 1100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1085 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-28 03:31:43,133 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [341 Valid, 746 Invalid, 1100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1085 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-28 03:31:43,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1457 states. [2024-11-28 03:31:43,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1457 to 1391. [2024-11-28 03:31:43,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1391 states, 1189 states have (on average 1.4011774600504625) internal successors, (1666), 1232 states have internal predecessors, (1666), 156 states have call successors, (156), 2 states have call predecessors, (156), 2 states have return successors, (156), 156 states have call predecessors, (156), 156 states have call successors, (156) [2024-11-28 03:31:43,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1391 states to 1391 states and 1978 transitions. [2024-11-28 03:31:43,675 INFO L78 Accepts]: Start accepts. Automaton has 1391 states and 1978 transitions. Word has length 94 [2024-11-28 03:31:43,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:31:43,676 INFO L471 AbstractCegarLoop]: Abstraction has 1391 states and 1978 transitions. [2024-11-28 03:31:43,676 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 11 states have internal predecessors, (63), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 03:31:43,676 INFO L276 IsEmpty]: Start isEmpty. Operand 1391 states and 1978 transitions. [2024-11-28 03:31:43,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-28 03:31:43,677 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:31:43,677 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:31:43,688 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Ended with exit code 0 [2024-11-28 03:31:43,881 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64,56 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:31:43,882 INFO L396 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr48ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 03:31:43,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:31:43,882 INFO L85 PathProgramCache]: Analyzing trace with hash -1520656846, now seen corresponding path program 1 times [2024-11-28 03:31:43,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:31:43,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802288358] [2024-11-28 03:31:43,883 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:31:43,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:31:43,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:31:43,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1623971061] [2024-11-28 03:31:43,895 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:31:43,895 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:31:43,895 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:31:43,897 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:31:43,899 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Waiting until timeout for monitored process [2024-11-28 03:31:43,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:31:43,958 INFO L256 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 43 conjuncts are in the unsatisfiable core [2024-11-28 03:31:43,960 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:31:46,141 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-28 03:31:46,142 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:31:47,640 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-28 03:31:47,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:31:47,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802288358] [2024-11-28 03:31:47,640 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:31:47,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1623971061] [2024-11-28 03:31:47,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1623971061] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:31:47,641 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 03:31:47,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 21 [2024-11-28 03:31:47,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648687419] [2024-11-28 03:31:47,641 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 03:31:47,641 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-28 03:31:47,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:31:47,642 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-28 03:31:47,642 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=378, Unknown=0, NotChecked=0, Total=462 [2024-11-28 03:31:47,643 INFO L87 Difference]: Start difference. First operand 1391 states and 1978 transitions. Second operand has 22 states, 21 states have (on average 5.380952380952381) internal successors, (113), 22 states have internal predecessors, (113), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-28 03:31:59,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:31:59,793 INFO L93 Difference]: Finished difference Result 1478 states and 2051 transitions. [2024-11-28 03:31:59,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2024-11-28 03:31:59,794 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 5.380952380952381) internal successors, (113), 22 states have internal predecessors, (113), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 95 [2024-11-28 03:31:59,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:31:59,796 INFO L225 Difference]: With dead ends: 1478 [2024-11-28 03:31:59,796 INFO L226 Difference]: Without dead ends: 1476 [2024-11-28 03:31:59,797 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 415 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=489, Invalid=1863, Unknown=0, NotChecked=0, Total=2352 [2024-11-28 03:31:59,797 INFO L435 NwaCegarLoop]: 69 mSDtfsCounter, 800 mSDsluCounter, 459 mSDsCounter, 0 mSdLazyCounter, 2261 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 804 SdHoareTripleChecker+Valid, 528 SdHoareTripleChecker+Invalid, 2382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 2261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:31:59,797 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [804 Valid, 528 Invalid, 2382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 2261 Invalid, 0 Unknown, 0 Unchecked, 8.2s Time] [2024-11-28 03:31:59,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1476 states. [2024-11-28 03:32:00,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1476 to 1392. [2024-11-28 03:32:00,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1392 states, 1190 states have (on average 1.3949579831932772) internal successors, (1660), 1233 states have internal predecessors, (1660), 156 states have call successors, (156), 2 states have call predecessors, (156), 2 states have return successors, (156), 156 states have call predecessors, (156), 156 states have call successors, (156) [2024-11-28 03:32:00,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1392 states to 1392 states and 1972 transitions. [2024-11-28 03:32:00,064 INFO L78 Accepts]: Start accepts. Automaton has 1392 states and 1972 transitions. Word has length 95 [2024-11-28 03:32:00,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:32:00,065 INFO L471 AbstractCegarLoop]: Abstraction has 1392 states and 1972 transitions. [2024-11-28 03:32:00,065 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 5.380952380952381) internal successors, (113), 22 states have internal predecessors, (113), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-28 03:32:00,065 INFO L276 IsEmpty]: Start isEmpty. Operand 1392 states and 1972 transitions. [2024-11-28 03:32:00,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-28 03:32:00,065 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:32:00,065 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:32:00,072 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Ended with exit code 0 [2024-11-28 03:32:00,266 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65,57 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:32:00,266 INFO L396 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 03:32:00,266 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:32:00,266 INFO L85 PathProgramCache]: Analyzing trace with hash 201951080, now seen corresponding path program 1 times [2024-11-28 03:32:00,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:32:00,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773912431] [2024-11-28 03:32:00,266 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:32:00,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:32:00,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:32:00,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1134706874] [2024-11-28 03:32:00,279 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:32:00,279 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:32:00,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:32:00,291 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:32:00,301 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Waiting until timeout for monitored process [2024-11-28 03:32:00,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:32:00,354 INFO L256 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-28 03:32:00,356 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:32:01,617 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 3 proven. 26 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-28 03:32:01,618 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:32:02,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:32:02,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773912431] [2024-11-28 03:32:02,096 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:32:02,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1134706874] [2024-11-28 03:32:02,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1134706874] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:32:02,096 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:32:02,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2024-11-28 03:32:02,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652723197] [2024-11-28 03:32:02,096 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 03:32:02,097 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-28 03:32:02,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:32:02,097 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-28 03:32:02,097 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2024-11-28 03:32:02,097 INFO L87 Difference]: Start difference. First operand 1392 states and 1972 transitions. Second operand has 15 states, 14 states have (on average 4.642857142857143) internal successors, (65), 14 states have internal predecessors, (65), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 03:32:04,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:32:04,720 INFO L93 Difference]: Finished difference Result 1620 states and 2286 transitions. [2024-11-28 03:32:04,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-28 03:32:04,720 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 4.642857142857143) internal successors, (65), 14 states have internal predecessors, (65), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 96 [2024-11-28 03:32:04,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:32:04,724 INFO L225 Difference]: With dead ends: 1620 [2024-11-28 03:32:04,724 INFO L226 Difference]: Without dead ends: 1619 [2024-11-28 03:32:04,725 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=105, Invalid=401, Unknown=0, NotChecked=0, Total=506 [2024-11-28 03:32:04,725 INFO L435 NwaCegarLoop]: 138 mSDtfsCounter, 479 mSDsluCounter, 895 mSDsCounter, 0 mSdLazyCounter, 1380 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 499 SdHoareTripleChecker+Valid, 1033 SdHoareTripleChecker+Invalid, 1404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:32:04,725 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [499 Valid, 1033 Invalid, 1404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1380 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-28 03:32:04,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1619 states. [2024-11-28 03:32:05,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1619 to 1556. [2024-11-28 03:32:05,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1556 states, 1332 states have (on average 1.4166666666666667) internal successors, (1887), 1375 states have internal predecessors, (1887), 178 states have call successors, (178), 2 states have call predecessors, (178), 2 states have return successors, (178), 178 states have call predecessors, (178), 178 states have call successors, (178) [2024-11-28 03:32:05,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1556 states to 1556 states and 2243 transitions. [2024-11-28 03:32:05,329 INFO L78 Accepts]: Start accepts. Automaton has 1556 states and 2243 transitions. Word has length 96 [2024-11-28 03:32:05,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:32:05,329 INFO L471 AbstractCegarLoop]: Abstraction has 1556 states and 2243 transitions. [2024-11-28 03:32:05,329 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 4.642857142857143) internal successors, (65), 14 states have internal predecessors, (65), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 03:32:05,329 INFO L276 IsEmpty]: Start isEmpty. Operand 1556 states and 2243 transitions. [2024-11-28 03:32:05,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-28 03:32:05,330 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:32:05,330 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:32:05,341 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Forceful destruction successful, exit code 0 [2024-11-28 03:32:05,531 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66,58 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:32:05,531 INFO L396 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr49ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 03:32:05,531 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:32:05,531 INFO L85 PathProgramCache]: Analyzing trace with hash 104278221, now seen corresponding path program 1 times [2024-11-28 03:32:05,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:32:05,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689567384] [2024-11-28 03:32:05,532 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:32:05,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:32:05,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:32:05,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [116077616] [2024-11-28 03:32:05,550 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:32:05,550 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:32:05,550 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:32:05,555 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:32:05,556 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Waiting until timeout for monitored process [2024-11-28 03:32:05,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:32:05,637 INFO L256 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 42 conjuncts are in the unsatisfiable core [2024-11-28 03:32:05,641 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:32:07,580 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-28 03:32:07,581 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:32:10,595 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-28 03:32:10,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:32:10,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689567384] [2024-11-28 03:32:10,596 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:32:10,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [116077616] [2024-11-28 03:32:10,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [116077616] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:32:10,596 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 03:32:10,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 21 [2024-11-28 03:32:10,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839994379] [2024-11-28 03:32:10,596 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 03:32:10,597 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-28 03:32:10,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:32:10,597 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-28 03:32:10,597 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=399, Unknown=0, NotChecked=0, Total=462 [2024-11-28 03:32:10,598 INFO L87 Difference]: Start difference. First operand 1556 states and 2243 transitions. Second operand has 22 states, 21 states have (on average 5.476190476190476) internal successors, (115), 22 states have internal predecessors, (115), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-28 03:32:21,659 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.35s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 03:32:29,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:32:29,678 INFO L93 Difference]: Finished difference Result 1639 states and 2321 transitions. [2024-11-28 03:32:29,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-28 03:32:29,679 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 5.476190476190476) internal successors, (115), 22 states have internal predecessors, (115), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 96 [2024-11-28 03:32:29,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:32:29,683 INFO L225 Difference]: With dead ends: 1639 [2024-11-28 03:32:29,683 INFO L226 Difference]: Without dead ends: 1624 [2024-11-28 03:32:29,685 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 274 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=346, Invalid=1376, Unknown=0, NotChecked=0, Total=1722 [2024-11-28 03:32:29,685 INFO L435 NwaCegarLoop]: 77 mSDtfsCounter, 685 mSDsluCounter, 631 mSDsCounter, 0 mSdLazyCounter, 2537 mSolverCounterSat, 114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 689 SdHoareTripleChecker+Valid, 708 SdHoareTripleChecker+Invalid, 2651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 2537 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:32:29,686 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [689 Valid, 708 Invalid, 2651 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 2537 Invalid, 0 Unknown, 0 Unchecked, 15.3s Time] [2024-11-28 03:32:29,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1624 states. [2024-11-28 03:32:30,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1624 to 1543. [2024-11-28 03:32:30,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1319 states have (on average 1.4200151630022744) internal successors, (1873), 1362 states have internal predecessors, (1873), 178 states have call successors, (178), 2 states have call predecessors, (178), 2 states have return successors, (178), 178 states have call predecessors, (178), 178 states have call successors, (178) [2024-11-28 03:32:30,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2229 transitions. [2024-11-28 03:32:30,277 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2229 transitions. Word has length 96 [2024-11-28 03:32:30,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:32:30,277 INFO L471 AbstractCegarLoop]: Abstraction has 1543 states and 2229 transitions. [2024-11-28 03:32:30,277 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 5.476190476190476) internal successors, (115), 22 states have internal predecessors, (115), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-28 03:32:30,277 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2229 transitions. [2024-11-28 03:32:30,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-28 03:32:30,278 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:32:30,278 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:32:30,294 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Forceful destruction successful, exit code 0 [2024-11-28 03:32:30,479 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 59 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable67 [2024-11-28 03:32:30,479 INFO L396 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 03:32:30,479 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:32:30,479 INFO L85 PathProgramCache]: Analyzing trace with hash 1965516262, now seen corresponding path program 1 times [2024-11-28 03:32:30,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:32:30,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313256292] [2024-11-28 03:32:30,480 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:32:30,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:32:30,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:32:30,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [513491978] [2024-11-28 03:32:30,500 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:32:30,500 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:32:30,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:32:30,505 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:32:30,510 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Waiting until timeout for monitored process [2024-11-28 03:32:30,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:32:30,577 INFO L256 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-28 03:32:30,579 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:32:31,915 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-28 03:32:31,915 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:32:32,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:32:32,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313256292] [2024-11-28 03:32:32,249 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:32:32,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [513491978] [2024-11-28 03:32:32,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [513491978] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:32:32,249 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:32:32,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-11-28 03:32:32,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948341768] [2024-11-28 03:32:32,249 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 03:32:32,249 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 03:32:32,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:32:32,250 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 03:32:32,250 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=210, Unknown=0, NotChecked=0, Total=272 [2024-11-28 03:32:32,250 INFO L87 Difference]: Start difference. First operand 1543 states and 2229 transitions. Second operand has 14 states, 13 states have (on average 5.076923076923077) internal successors, (66), 14 states have internal predecessors, (66), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 03:32:35,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:32:35,297 INFO L93 Difference]: Finished difference Result 1599 states and 2249 transitions. [2024-11-28 03:32:35,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-28 03:32:35,297 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 5.076923076923077) internal successors, (66), 14 states have internal predecessors, (66), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) Word has length 97 [2024-11-28 03:32:35,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:32:35,300 INFO L225 Difference]: With dead ends: 1599 [2024-11-28 03:32:35,300 INFO L226 Difference]: Without dead ends: 1598 [2024-11-28 03:32:35,300 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=123, Invalid=429, Unknown=0, NotChecked=0, Total=552 [2024-11-28 03:32:35,301 INFO L435 NwaCegarLoop]: 141 mSDtfsCounter, 469 mSDsluCounter, 984 mSDsCounter, 0 mSdLazyCounter, 1344 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 485 SdHoareTripleChecker+Valid, 1125 SdHoareTripleChecker+Invalid, 1372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:32:35,301 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [485 Valid, 1125 Invalid, 1372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1344 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-28 03:32:35,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1598 states. [2024-11-28 03:32:35,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1598 to 1543. [2024-11-28 03:32:35,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1319 states have (on average 1.4154662623199394) internal successors, (1867), 1362 states have internal predecessors, (1867), 178 states have call successors, (178), 2 states have call predecessors, (178), 2 states have return successors, (178), 178 states have call predecessors, (178), 178 states have call successors, (178) [2024-11-28 03:32:35,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2223 transitions. [2024-11-28 03:32:35,811 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2223 transitions. Word has length 97 [2024-11-28 03:32:35,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:32:35,812 INFO L471 AbstractCegarLoop]: Abstraction has 1543 states and 2223 transitions. [2024-11-28 03:32:35,812 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 5.076923076923077) internal successors, (66), 14 states have internal predecessors, (66), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 03:32:35,812 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2223 transitions. [2024-11-28 03:32:35,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-28 03:32:35,813 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:32:35,813 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:32:35,826 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Forceful destruction successful, exit code 0 [2024-11-28 03:32:36,014 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 60 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable68 [2024-11-28 03:32:36,014 INFO L396 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 03:32:36,015 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:32:36,015 INFO L85 PathProgramCache]: Analyzing trace with hash 801462058, now seen corresponding path program 1 times [2024-11-28 03:32:36,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:32:36,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130491228] [2024-11-28 03:32:36,015 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:32:36,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:32:36,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:32:36,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [860324378] [2024-11-28 03:32:36,032 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:32:36,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:32:36,032 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:32:36,037 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:32:36,043 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Waiting until timeout for monitored process [2024-11-28 03:32:36,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:32:36,112 INFO L256 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-28 03:32:36,113 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:32:37,316 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-28 03:32:37,317 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:32:37,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:32:37,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130491228] [2024-11-28 03:32:37,789 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:32:37,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [860324378] [2024-11-28 03:32:37,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [860324378] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:32:37,789 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:32:37,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-11-28 03:32:37,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073241273] [2024-11-28 03:32:37,790 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 03:32:37,790 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 03:32:37,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:32:37,790 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 03:32:37,790 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=209, Unknown=0, NotChecked=0, Total=272 [2024-11-28 03:32:37,790 INFO L87 Difference]: Start difference. First operand 1543 states and 2223 transitions. Second operand has 14 states, 13 states have (on average 5.153846153846154) internal successors, (67), 14 states have internal predecessors, (67), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 03:32:40,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:32:40,341 INFO L93 Difference]: Finished difference Result 1599 states and 2243 transitions. [2024-11-28 03:32:40,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-28 03:32:40,341 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 5.153846153846154) internal successors, (67), 14 states have internal predecessors, (67), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) Word has length 98 [2024-11-28 03:32:40,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:32:40,344 INFO L225 Difference]: With dead ends: 1599 [2024-11-28 03:32:40,344 INFO L226 Difference]: Without dead ends: 1598 [2024-11-28 03:32:40,344 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=124, Invalid=428, Unknown=0, NotChecked=0, Total=552 [2024-11-28 03:32:40,344 INFO L435 NwaCegarLoop]: 140 mSDtfsCounter, 469 mSDsluCounter, 900 mSDsCounter, 0 mSdLazyCounter, 1215 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 485 SdHoareTripleChecker+Valid, 1040 SdHoareTripleChecker+Invalid, 1243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-28 03:32:40,345 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [485 Valid, 1040 Invalid, 1243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1215 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-28 03:32:40,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1598 states. [2024-11-28 03:32:40,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1598 to 1543. [2024-11-28 03:32:40,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1319 states have (on average 1.4109173616376043) internal successors, (1861), 1362 states have internal predecessors, (1861), 178 states have call successors, (178), 2 states have call predecessors, (178), 2 states have return successors, (178), 178 states have call predecessors, (178), 178 states have call successors, (178) [2024-11-28 03:32:40,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2217 transitions. [2024-11-28 03:32:40,985 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2217 transitions. Word has length 98 [2024-11-28 03:32:40,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:32:40,985 INFO L471 AbstractCegarLoop]: Abstraction has 1543 states and 2217 transitions. [2024-11-28 03:32:40,986 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 5.153846153846154) internal successors, (67), 14 states have internal predecessors, (67), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 03:32:40,986 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2217 transitions. [2024-11-28 03:32:40,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-28 03:32:40,987 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:32:40,987 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:32:40,999 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Forceful destruction successful, exit code 0 [2024-11-28 03:32:41,187 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 61 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable69 [2024-11-28 03:32:41,188 INFO L396 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 03:32:41,188 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:32:41,188 INFO L85 PathProgramCache]: Analyzing trace with hash -924479896, now seen corresponding path program 1 times [2024-11-28 03:32:41,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:32:41,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197429513] [2024-11-28 03:32:41,188 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:32:41,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:32:41,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:32:41,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [414015361] [2024-11-28 03:32:41,205 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:32:41,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:32:41,205 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:32:41,208 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:32:41,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Waiting until timeout for monitored process [2024-11-28 03:32:41,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:32:41,277 INFO L256 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-28 03:32:41,279 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:32:42,045 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-28 03:32:42,046 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:32:42,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:32:42,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197429513] [2024-11-28 03:32:42,427 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:32:42,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [414015361] [2024-11-28 03:32:42,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [414015361] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:32:42,428 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:32:42,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-28 03:32:42,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449434709] [2024-11-28 03:32:42,428 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 03:32:42,428 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 03:32:42,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:32:42,429 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 03:32:42,429 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2024-11-28 03:32:42,429 INFO L87 Difference]: Start difference. First operand 1543 states and 2217 transitions. Second operand has 11 states, 10 states have (on average 6.5) internal successors, (65), 11 states have internal predecessors, (65), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-28 03:32:45,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:32:45,960 INFO L93 Difference]: Finished difference Result 1759 states and 2487 transitions. [2024-11-28 03:32:45,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-28 03:32:45,960 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 6.5) internal successors, (65), 11 states have internal predecessors, (65), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 99 [2024-11-28 03:32:45,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:32:45,964 INFO L225 Difference]: With dead ends: 1759 [2024-11-28 03:32:45,964 INFO L226 Difference]: Without dead ends: 1753 [2024-11-28 03:32:45,965 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=77, Invalid=385, Unknown=0, NotChecked=0, Total=462 [2024-11-28 03:32:45,966 INFO L435 NwaCegarLoop]: 179 mSDtfsCounter, 303 mSDsluCounter, 819 mSDsCounter, 0 mSdLazyCounter, 1904 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 311 SdHoareTripleChecker+Valid, 998 SdHoareTripleChecker+Invalid, 1929 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1904 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-28 03:32:45,966 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [311 Valid, 998 Invalid, 1929 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1904 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-28 03:32:45,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1753 states. [2024-11-28 03:32:46,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1753 to 1683. [2024-11-28 03:32:46,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1683 states, 1441 states have (on average 1.412907702984039) internal successors, (2036), 1484 states have internal predecessors, (2036), 196 states have call successors, (196), 2 states have call predecessors, (196), 2 states have return successors, (196), 196 states have call predecessors, (196), 196 states have call successors, (196) [2024-11-28 03:32:46,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1683 states to 1683 states and 2428 transitions. [2024-11-28 03:32:46,456 INFO L78 Accepts]: Start accepts. Automaton has 1683 states and 2428 transitions. Word has length 99 [2024-11-28 03:32:46,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:32:46,456 INFO L471 AbstractCegarLoop]: Abstraction has 1683 states and 2428 transitions. [2024-11-28 03:32:46,456 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 6.5) internal successors, (65), 11 states have internal predecessors, (65), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-28 03:32:46,456 INFO L276 IsEmpty]: Start isEmpty. Operand 1683 states and 2428 transitions. [2024-11-28 03:32:46,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-28 03:32:46,457 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:32:46,457 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:32:46,466 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Ended with exit code 0 [2024-11-28 03:32:46,657 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70,62 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:32:46,658 INFO L396 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 03:32:46,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:32:46,658 INFO L85 PathProgramCache]: Analyzing trace with hash -2005944043, now seen corresponding path program 1 times [2024-11-28 03:32:46,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:32:46,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629247749] [2024-11-28 03:32:46,658 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:32:46,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:32:46,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:32:46,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1395799140] [2024-11-28 03:32:46,674 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:32:46,674 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:32:46,674 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:32:46,680 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:32:46,682 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Waiting until timeout for monitored process [2024-11-28 03:32:46,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:32:46,761 INFO L256 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 39 conjuncts are in the unsatisfiable core [2024-11-28 03:32:46,764 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:32:49,398 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-11-28 03:32:49,398 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:32:52,947 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-11-28 03:32:52,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:32:52,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629247749] [2024-11-28 03:32:52,948 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:32:52,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1395799140] [2024-11-28 03:32:52,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1395799140] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:32:52,948 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 03:32:52,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2024-11-28 03:32:52,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255772387] [2024-11-28 03:32:52,948 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 03:32:52,949 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-28 03:32:52,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:32:52,949 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-28 03:32:52,949 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=596, Unknown=0, NotChecked=0, Total=702 [2024-11-28 03:32:52,949 INFO L87 Difference]: Start difference. First operand 1683 states and 2428 transitions. Second operand has 27 states, 26 states have (on average 4.576923076923077) internal successors, (119), 27 states have internal predecessors, (119), 7 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (18), 6 states have call predecessors, (18), 7 states have call successors, (18) [2024-11-28 03:33:06,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:33:06,182 INFO L93 Difference]: Finished difference Result 1740 states and 2469 transitions. [2024-11-28 03:33:06,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-28 03:33:06,182 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 4.576923076923077) internal successors, (119), 27 states have internal predecessors, (119), 7 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (18), 6 states have call predecessors, (18), 7 states have call successors, (18) Word has length 100 [2024-11-28 03:33:06,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:33:06,185 INFO L225 Difference]: With dead ends: 1740 [2024-11-28 03:33:06,185 INFO L226 Difference]: Without dead ends: 1739 [2024-11-28 03:33:06,186 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 382 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=382, Invalid=1780, Unknown=0, NotChecked=0, Total=2162 [2024-11-28 03:33:06,186 INFO L435 NwaCegarLoop]: 66 mSDtfsCounter, 713 mSDsluCounter, 518 mSDsCounter, 0 mSdLazyCounter, 2733 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 714 SdHoareTripleChecker+Valid, 584 SdHoareTripleChecker+Invalid, 2823 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 2733 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.6s IncrementalHoareTripleChecker+Time [2024-11-28 03:33:06,186 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [714 Valid, 584 Invalid, 2823 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 2733 Invalid, 0 Unknown, 0 Unchecked, 10.6s Time] [2024-11-28 03:33:06,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1739 states. [2024-11-28 03:33:06,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1739 to 1683. [2024-11-28 03:33:06,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1683 states, 1441 states have (on average 1.4122137404580153) internal successors, (2035), 1484 states have internal predecessors, (2035), 196 states have call successors, (196), 2 states have call predecessors, (196), 2 states have return successors, (196), 196 states have call predecessors, (196), 196 states have call successors, (196) [2024-11-28 03:33:06,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1683 states to 1683 states and 2427 transitions. [2024-11-28 03:33:06,592 INFO L78 Accepts]: Start accepts. Automaton has 1683 states and 2427 transitions. Word has length 100 [2024-11-28 03:33:06,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:33:06,592 INFO L471 AbstractCegarLoop]: Abstraction has 1683 states and 2427 transitions. [2024-11-28 03:33:06,593 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 4.576923076923077) internal successors, (119), 27 states have internal predecessors, (119), 7 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (18), 6 states have call predecessors, (18), 7 states have call successors, (18) [2024-11-28 03:33:06,593 INFO L276 IsEmpty]: Start isEmpty. Operand 1683 states and 2427 transitions. [2024-11-28 03:33:06,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-28 03:33:06,593 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:33:06,593 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:33:06,603 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Forceful destruction successful, exit code 0 [2024-11-28 03:33:06,797 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71,63 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:33:06,798 INFO L396 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 03:33:06,798 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:06,798 INFO L85 PathProgramCache]: Analyzing trace with hash 1434229875, now seen corresponding path program 1 times [2024-11-28 03:33:06,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:06,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912913010] [2024-11-28 03:33:06,798 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:06,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:06,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:33:06,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [370644241] [2024-11-28 03:33:06,810 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:06,810 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:33:06,810 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:33:06,817 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:33:06,818 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Waiting until timeout for monitored process [2024-11-28 03:33:06,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:06,868 INFO L256 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-28 03:33:06,869 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:33:07,175 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2024-11-28 03:33:07,175 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:33:07,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:07,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912913010] [2024-11-28 03:33:07,175 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:33:07,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [370644241] [2024-11-28 03:33:07,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [370644241] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:33:07,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:33:07,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 03:33:07,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127428594] [2024-11-28 03:33:07,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:33:07,176 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 03:33:07,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:07,176 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 03:33:07,176 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:33:07,176 INFO L87 Difference]: Start difference. First operand 1683 states and 2427 transitions. Second operand has 8 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 3 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-28 03:33:08,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:33:08,051 INFO L93 Difference]: Finished difference Result 1689 states and 2427 transitions. [2024-11-28 03:33:08,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 03:33:08,051 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 3 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) Word has length 103 [2024-11-28 03:33:08,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:33:08,054 INFO L225 Difference]: With dead ends: 1689 [2024-11-28 03:33:08,054 INFO L226 Difference]: Without dead ends: 1688 [2024-11-28 03:33:08,055 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2024-11-28 03:33:08,055 INFO L435 NwaCegarLoop]: 91 mSDtfsCounter, 159 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 349 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:33:08,055 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 368 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 349 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 03:33:08,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1688 states. [2024-11-28 03:33:08,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1688 to 1683. [2024-11-28 03:33:08,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1683 states, 1441 states have (on average 1.4094378903539209) internal successors, (2031), 1484 states have internal predecessors, (2031), 196 states have call successors, (196), 2 states have call predecessors, (196), 2 states have return successors, (196), 196 states have call predecessors, (196), 196 states have call successors, (196) [2024-11-28 03:33:08,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1683 states to 1683 states and 2423 transitions. [2024-11-28 03:33:08,596 INFO L78 Accepts]: Start accepts. Automaton has 1683 states and 2423 transitions. Word has length 103 [2024-11-28 03:33:08,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:33:08,596 INFO L471 AbstractCegarLoop]: Abstraction has 1683 states and 2423 transitions. [2024-11-28 03:33:08,596 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 3 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-28 03:33:08,596 INFO L276 IsEmpty]: Start isEmpty. Operand 1683 states and 2423 transitions. [2024-11-28 03:33:08,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-28 03:33:08,597 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:33:08,597 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:33:08,604 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Forceful destruction successful, exit code 0 [2024-11-28 03:33:08,797 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72,64 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:33:08,797 INFO L396 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 03:33:08,798 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:08,798 INFO L85 PathProgramCache]: Analyzing trace with hash 1560551919, now seen corresponding path program 1 times [2024-11-28 03:33:08,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:08,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516677758] [2024-11-28 03:33:08,798 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:08,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:08,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:33:08,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1269392271] [2024-11-28 03:33:08,809 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:08,809 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:33:08,810 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:33:08,813 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:33:08,815 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Waiting until timeout for monitored process [2024-11-28 03:33:08,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:08,872 INFO L256 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-11-28 03:33:08,874 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:33:10,245 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 3 proven. 32 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-11-28 03:33:10,245 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:33:10,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:10,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516677758] [2024-11-28 03:33:10,760 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:33:10,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1269392271] [2024-11-28 03:33:10,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1269392271] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:33:10,760 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:33:10,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2024-11-28 03:33:10,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443794206] [2024-11-28 03:33:10,760 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 03:33:10,760 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-28 03:33:10,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:10,761 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-28 03:33:10,761 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=362, Unknown=0, NotChecked=0, Total=420 [2024-11-28 03:33:10,761 INFO L87 Difference]: Start difference. First operand 1683 states and 2423 transitions. Second operand has 16 states, 15 states have (on average 4.666666666666667) internal successors, (70), 15 states have internal predecessors, (70), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2024-11-28 03:33:14,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:33:14,321 INFO L93 Difference]: Finished difference Result 1739 states and 2457 transitions. [2024-11-28 03:33:14,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-28 03:33:14,321 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 4.666666666666667) internal successors, (70), 15 states have internal predecessors, (70), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) Word has length 106 [2024-11-28 03:33:14,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:33:14,324 INFO L225 Difference]: With dead ends: 1739 [2024-11-28 03:33:14,324 INFO L226 Difference]: Without dead ends: 1738 [2024-11-28 03:33:14,324 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=155, Invalid=901, Unknown=0, NotChecked=0, Total=1056 [2024-11-28 03:33:14,325 INFO L435 NwaCegarLoop]: 115 mSDtfsCounter, 495 mSDsluCounter, 757 mSDsCounter, 0 mSdLazyCounter, 1968 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 499 SdHoareTripleChecker+Valid, 872 SdHoareTripleChecker+Invalid, 2011 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 1968 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:33:14,325 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [499 Valid, 872 Invalid, 2011 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 1968 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-28 03:33:14,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1738 states. [2024-11-28 03:33:14,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1738 to 1683. [2024-11-28 03:33:14,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1683 states, 1441 states have (on average 1.4052741151977792) internal successors, (2025), 1484 states have internal predecessors, (2025), 196 states have call successors, (196), 2 states have call predecessors, (196), 2 states have return successors, (196), 196 states have call predecessors, (196), 196 states have call successors, (196) [2024-11-28 03:33:14,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1683 states to 1683 states and 2417 transitions. [2024-11-28 03:33:14,692 INFO L78 Accepts]: Start accepts. Automaton has 1683 states and 2417 transitions. Word has length 106 [2024-11-28 03:33:14,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:33:14,693 INFO L471 AbstractCegarLoop]: Abstraction has 1683 states and 2417 transitions. [2024-11-28 03:33:14,693 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 4.666666666666667) internal successors, (70), 15 states have internal predecessors, (70), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2024-11-28 03:33:14,693 INFO L276 IsEmpty]: Start isEmpty. Operand 1683 states and 2417 transitions. [2024-11-28 03:33:14,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-28 03:33:14,693 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:33:14,693 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:33:14,700 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Ended with exit code 0 [2024-11-28 03:33:14,894 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73,65 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:33:14,894 INFO L396 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 03:33:14,894 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:14,894 INFO L85 PathProgramCache]: Analyzing trace with hash 1132469322, now seen corresponding path program 1 times [2024-11-28 03:33:14,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:14,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115642175] [2024-11-28 03:33:14,894 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:14,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:14,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:33:14,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [368758691] [2024-11-28 03:33:14,910 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:14,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:33:14,910 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:33:14,913 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:33:14,917 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Waiting until timeout for monitored process [2024-11-28 03:33:14,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:14,983 INFO L256 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-28 03:33:14,984 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:33:16,779 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-11-28 03:33:16,779 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:33:29,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:29,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115642175] [2024-11-28 03:33:29,810 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:33:29,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [368758691] [2024-11-28 03:33:29,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [368758691] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:33:29,811 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:33:29,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2024-11-28 03:33:29,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003596371] [2024-11-28 03:33:29,811 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 03:33:29,811 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-28 03:33:29,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:29,812 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-28 03:33:29,812 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=348, Unknown=3, NotChecked=0, Total=420 [2024-11-28 03:33:29,812 INFO L87 Difference]: Start difference. First operand 1683 states and 2417 transitions. Second operand has 16 states, 15 states have (on average 4.733333333333333) internal successors, (71), 16 states have internal predecessors, (71), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 3 states have call predecessors, (9), 4 states have call successors, (9) [2024-11-28 03:33:33,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:33:33,466 INFO L93 Difference]: Finished difference Result 1745 states and 2451 transitions. [2024-11-28 03:33:33,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-28 03:33:33,467 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 4.733333333333333) internal successors, (71), 16 states have internal predecessors, (71), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 3 states have call predecessors, (9), 4 states have call successors, (9) Word has length 107 [2024-11-28 03:33:33,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:33:33,469 INFO L225 Difference]: With dead ends: 1745 [2024-11-28 03:33:33,469 INFO L226 Difference]: Without dead ends: 1744 [2024-11-28 03:33:33,470 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 13.4s TimeCoverageRelationStatistics Valid=126, Invalid=627, Unknown=3, NotChecked=0, Total=756 [2024-11-28 03:33:33,470 INFO L435 NwaCegarLoop]: 134 mSDtfsCounter, 413 mSDsluCounter, 1030 mSDsCounter, 0 mSdLazyCounter, 1834 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 428 SdHoareTripleChecker+Valid, 1164 SdHoareTripleChecker+Invalid, 1859 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1834 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-28 03:33:33,470 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [428 Valid, 1164 Invalid, 1859 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1834 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-28 03:33:33,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1744 states. [2024-11-28 03:33:33,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1744 to 1683. [2024-11-28 03:33:33,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1683 states, 1441 states have (on average 1.4011103400416378) internal successors, (2019), 1484 states have internal predecessors, (2019), 196 states have call successors, (196), 2 states have call predecessors, (196), 2 states have return successors, (196), 196 states have call predecessors, (196), 196 states have call successors, (196) [2024-11-28 03:33:33,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1683 states to 1683 states and 2411 transitions. [2024-11-28 03:33:33,882 INFO L78 Accepts]: Start accepts. Automaton has 1683 states and 2411 transitions. Word has length 107 [2024-11-28 03:33:33,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:33:33,882 INFO L471 AbstractCegarLoop]: Abstraction has 1683 states and 2411 transitions. [2024-11-28 03:33:33,882 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 4.733333333333333) internal successors, (71), 16 states have internal predecessors, (71), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 3 states have call predecessors, (9), 4 states have call successors, (9) [2024-11-28 03:33:33,882 INFO L276 IsEmpty]: Start isEmpty. Operand 1683 states and 2411 transitions. [2024-11-28 03:33:33,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-28 03:33:33,883 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:33:33,883 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:33:33,893 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Ended with exit code 0 [2024-11-28 03:33:34,084 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74,66 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:33:34,084 INFO L396 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 03:33:34,084 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:34,084 INFO L85 PathProgramCache]: Analyzing trace with hash 969286499, now seen corresponding path program 1 times [2024-11-28 03:33:34,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:34,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868135589] [2024-11-28 03:33:34,084 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:34,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:34,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:34,276 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 3 proven. 18 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-28 03:33:34,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:34,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868135589] [2024-11-28 03:33:34,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868135589] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:33:34,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1833292557] [2024-11-28 03:33:34,277 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:34,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:33:34,277 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:33:34,286 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:33:34,290 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Waiting until timeout for monitored process [2024-11-28 03:33:34,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:34,367 INFO L256 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 03:33:34,370 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:33:34,675 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 3 proven. 18 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-28 03:33:34,675 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:33:34,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1833292557] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:33:34,758 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 03:33:34,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2024-11-28 03:33:34,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065767865] [2024-11-28 03:33:34,758 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 03:33:34,759 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 03:33:34,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:34,759 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 03:33:34,760 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-11-28 03:33:34,760 INFO L87 Difference]: Start difference. First operand 1683 states and 2411 transitions. Second operand has 9 states, 8 states have (on average 11.125) internal successors, (89), 9 states have internal predecessors, (89), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-28 03:33:36,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:33:36,434 INFO L93 Difference]: Finished difference Result 2602 states and 3725 transitions. [2024-11-28 03:33:36,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 03:33:36,434 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 11.125) internal successors, (89), 9 states have internal predecessors, (89), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) Word has length 108 [2024-11-28 03:33:36,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:33:36,439 INFO L225 Difference]: With dead ends: 2602 [2024-11-28 03:33:36,439 INFO L226 Difference]: Without dead ends: 2601 [2024-11-28 03:33:36,440 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=99, Invalid=243, Unknown=0, NotChecked=0, Total=342 [2024-11-28 03:33:36,441 INFO L435 NwaCegarLoop]: 173 mSDtfsCounter, 421 mSDsluCounter, 711 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 425 SdHoareTripleChecker+Valid, 884 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 03:33:36,441 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [425 Valid, 884 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 355 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 03:33:36,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2601 states. [2024-11-28 03:33:36,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2601 to 2061. [2024-11-28 03:33:36,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2061 states, 1774 states have (on average 1.4086809470124013) internal successors, (2499), 1817 states have internal predecessors, (2499), 241 states have call successors, (241), 2 states have call predecessors, (241), 2 states have return successors, (241), 241 states have call predecessors, (241), 241 states have call successors, (241) [2024-11-28 03:33:37,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2061 states to 2061 states and 2981 transitions. [2024-11-28 03:33:37,002 INFO L78 Accepts]: Start accepts. Automaton has 2061 states and 2981 transitions. Word has length 108 [2024-11-28 03:33:37,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:33:37,002 INFO L471 AbstractCegarLoop]: Abstraction has 2061 states and 2981 transitions. [2024-11-28 03:33:37,003 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 11.125) internal successors, (89), 9 states have internal predecessors, (89), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-28 03:33:37,003 INFO L276 IsEmpty]: Start isEmpty. Operand 2061 states and 2981 transitions. [2024-11-28 03:33:37,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-28 03:33:37,003 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:33:37,004 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:33:37,010 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Ended with exit code 0 [2024-11-28 03:33:37,204 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 67 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable75 [2024-11-28 03:33:37,204 INFO L396 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 03:33:37,204 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:37,204 INFO L85 PathProgramCache]: Analyzing trace with hash 775132654, now seen corresponding path program 1 times [2024-11-28 03:33:37,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:37,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122295425] [2024-11-28 03:33:37,205 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:37,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:37,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:37,321 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-11-28 03:33:37,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:37,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122295425] [2024-11-28 03:33:37,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122295425] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:33:37,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2125678651] [2024-11-28 03:33:37,322 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:37,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:33:37,322 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:33:37,327 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:33:37,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Waiting until timeout for monitored process [2024-11-28 03:33:37,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:37,393 INFO L256 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 03:33:37,395 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:33:37,543 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-11-28 03:33:37,543 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:33:37,817 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-11-28 03:33:37,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2125678651] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:33:37,817 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:33:37,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2024-11-28 03:33:37,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394265348] [2024-11-28 03:33:37,818 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:33:37,818 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 03:33:37,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:37,819 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 03:33:37,819 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:33:37,819 INFO L87 Difference]: Start difference. First operand 2061 states and 2981 transitions. Second operand has 10 states, 9 states have (on average 11.555555555555555) internal successors, (104), 10 states have internal predecessors, (104), 7 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 7 states have call predecessors, (23), 7 states have call successors, (23) [2024-11-28 03:33:39,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:33:39,318 INFO L93 Difference]: Finished difference Result 2211 states and 3155 transitions. [2024-11-28 03:33:39,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 03:33:39,318 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 11.555555555555555) internal successors, (104), 10 states have internal predecessors, (104), 7 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 7 states have call predecessors, (23), 7 states have call successors, (23) Word has length 110 [2024-11-28 03:33:39,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:33:39,322 INFO L225 Difference]: With dead ends: 2211 [2024-11-28 03:33:39,322 INFO L226 Difference]: Without dead ends: 2210 [2024-11-28 03:33:39,323 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=117, Invalid=225, Unknown=0, NotChecked=0, Total=342 [2024-11-28 03:33:39,323 INFO L435 NwaCegarLoop]: 73 mSDtfsCounter, 324 mSDsluCounter, 436 mSDsCounter, 0 mSdLazyCounter, 436 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 328 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 436 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 03:33:39,323 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [328 Valid, 509 Invalid, 462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 436 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 03:33:39,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2210 states. [2024-11-28 03:33:39,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2210 to 2181. [2024-11-28 03:33:39,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2181 states, 1876 states have (on average 1.3992537313432836) internal successors, (2625), 1919 states have internal predecessors, (2625), 259 states have call successors, (259), 2 states have call predecessors, (259), 2 states have return successors, (259), 259 states have call predecessors, (259), 259 states have call successors, (259) [2024-11-28 03:33:39,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2181 states to 2181 states and 3143 transitions. [2024-11-28 03:33:39,839 INFO L78 Accepts]: Start accepts. Automaton has 2181 states and 3143 transitions. Word has length 110 [2024-11-28 03:33:39,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:33:39,840 INFO L471 AbstractCegarLoop]: Abstraction has 2181 states and 3143 transitions. [2024-11-28 03:33:39,840 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 11.555555555555555) internal successors, (104), 10 states have internal predecessors, (104), 7 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 7 states have call predecessors, (23), 7 states have call successors, (23) [2024-11-28 03:33:39,840 INFO L276 IsEmpty]: Start isEmpty. Operand 2181 states and 3143 transitions. [2024-11-28 03:33:39,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-28 03:33:39,841 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:33:39,841 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:33:39,850 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Ended with exit code 0 [2024-11-28 03:33:40,041 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 68 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable76 [2024-11-28 03:33:40,041 INFO L396 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 03:33:40,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:40,042 INFO L85 PathProgramCache]: Analyzing trace with hash 746810705, now seen corresponding path program 1 times [2024-11-28 03:33:40,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:40,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437457226] [2024-11-28 03:33:40,042 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:40,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:40,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:33:40,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1676031044] [2024-11-28 03:33:40,056 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:40,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:33:40,057 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:33:40,062 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:33:40,064 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Waiting until timeout for monitored process [2024-11-28 03:33:40,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:40,150 INFO L256 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-28 03:33:40,153 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:33:42,101 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 3 proven. 34 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-11-28 03:33:42,102 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:33:46,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:46,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437457226] [2024-11-28 03:33:46,619 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:33:46,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1676031044] [2024-11-28 03:33:46,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1676031044] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:33:46,619 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:33:46,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2024-11-28 03:33:46,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859082047] [2024-11-28 03:33:46,619 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 03:33:46,619 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-28 03:33:46,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:46,620 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-28 03:33:46,620 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=369, Unknown=1, NotChecked=0, Total=462 [2024-11-28 03:33:46,620 INFO L87 Difference]: Start difference. First operand 2181 states and 3143 transitions. Second operand has 17 states, 16 states have (on average 4.5) internal successors, (72), 16 states have internal predecessors, (72), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2024-11-28 03:33:50,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:33:50,130 INFO L93 Difference]: Finished difference Result 2258 states and 3211 transitions. [2024-11-28 03:33:50,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-28 03:33:50,131 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 4.5) internal successors, (72), 16 states have internal predecessors, (72), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) Word has length 108 [2024-11-28 03:33:50,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:33:50,134 INFO L225 Difference]: With dead ends: 2258 [2024-11-28 03:33:50,134 INFO L226 Difference]: Without dead ends: 2257 [2024-11-28 03:33:50,135 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=144, Invalid=557, Unknown=1, NotChecked=0, Total=702 [2024-11-28 03:33:50,135 INFO L435 NwaCegarLoop]: 133 mSDtfsCounter, 377 mSDsluCounter, 1120 mSDsCounter, 0 mSdLazyCounter, 2004 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 396 SdHoareTripleChecker+Valid, 1253 SdHoareTripleChecker+Invalid, 2020 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 2004 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-28 03:33:50,136 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [396 Valid, 1253 Invalid, 2020 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 2004 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-28 03:33:50,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2257 states. [2024-11-28 03:33:50,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2257 to 2181. [2024-11-28 03:33:50,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2181 states, 1876 states have (on average 1.3987206823027718) internal successors, (2624), 1919 states have internal predecessors, (2624), 259 states have call successors, (259), 2 states have call predecessors, (259), 2 states have return successors, (259), 259 states have call predecessors, (259), 259 states have call successors, (259) [2024-11-28 03:33:50,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2181 states to 2181 states and 3142 transitions. [2024-11-28 03:33:50,634 INFO L78 Accepts]: Start accepts. Automaton has 2181 states and 3142 transitions. Word has length 108 [2024-11-28 03:33:50,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:33:50,635 INFO L471 AbstractCegarLoop]: Abstraction has 2181 states and 3142 transitions. [2024-11-28 03:33:50,635 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 4.5) internal successors, (72), 16 states have internal predecessors, (72), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2024-11-28 03:33:50,635 INFO L276 IsEmpty]: Start isEmpty. Operand 2181 states and 3142 transitions. [2024-11-28 03:33:50,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-28 03:33:50,635 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:33:50,636 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:33:50,643 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Ended with exit code 0 [2024-11-28 03:33:50,836 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 69 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable77 [2024-11-28 03:33:50,836 INFO L396 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 03:33:50,836 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:50,837 INFO L85 PathProgramCache]: Analyzing trace with hash -1740691386, now seen corresponding path program 1 times [2024-11-28 03:33:50,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:50,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168086385] [2024-11-28 03:33:50,837 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:50,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:50,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:50,973 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-11-28 03:33:50,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:50,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168086385] [2024-11-28 03:33:50,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168086385] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:33:50,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2081421443] [2024-11-28 03:33:50,973 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:50,974 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:33:50,974 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:33:50,978 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:33:50,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (70)] Waiting until timeout for monitored process [2024-11-28 03:33:51,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:51,043 INFO L256 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 03:33:51,044 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:33:51,284 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-11-28 03:33:51,285 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:33:51,538 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-11-28 03:33:51,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2081421443] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:33:51,538 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:33:51,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 13 [2024-11-28 03:33:51,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020884809] [2024-11-28 03:33:51,538 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:33:51,539 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 03:33:51,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:51,539 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 03:33:51,540 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2024-11-28 03:33:51,540 INFO L87 Difference]: Start difference. First operand 2181 states and 3142 transitions. Second operand has 14 states, 13 states have (on average 10.538461538461538) internal successors, (137), 14 states have internal predecessors, (137), 9 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 9 states have call predecessors, (31), 9 states have call successors, (31) [2024-11-28 03:33:54,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:33:54,006 INFO L93 Difference]: Finished difference Result 2727 states and 3918 transitions. [2024-11-28 03:33:54,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2024-11-28 03:33:54,006 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 10.538461538461538) internal successors, (137), 14 states have internal predecessors, (137), 9 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 9 states have call predecessors, (31), 9 states have call successors, (31) Word has length 111 [2024-11-28 03:33:54,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:33:54,011 INFO L225 Difference]: With dead ends: 2727 [2024-11-28 03:33:54,011 INFO L226 Difference]: Without dead ends: 2726 [2024-11-28 03:33:54,012 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 261 GetRequests, 214 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 644 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=633, Invalid=1719, Unknown=0, NotChecked=0, Total=2352 [2024-11-28 03:33:54,013 INFO L435 NwaCegarLoop]: 50 mSDtfsCounter, 1529 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 516 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1529 SdHoareTripleChecker+Valid, 283 SdHoareTripleChecker+Invalid, 642 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 516 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 03:33:54,013 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1529 Valid, 283 Invalid, 642 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 516 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 03:33:54,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2726 states. [2024-11-28 03:33:54,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2726 to 2607. [2024-11-28 03:33:54,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2607 states, 2240 states have (on average 1.4116071428571428) internal successors, (3162), 2283 states have internal predecessors, (3162), 321 states have call successors, (321), 2 states have call predecessors, (321), 2 states have return successors, (321), 321 states have call predecessors, (321), 321 states have call successors, (321) [2024-11-28 03:33:54,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2607 states to 2607 states and 3804 transitions. [2024-11-28 03:33:54,812 INFO L78 Accepts]: Start accepts. Automaton has 2607 states and 3804 transitions. Word has length 111 [2024-11-28 03:33:54,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:33:54,812 INFO L471 AbstractCegarLoop]: Abstraction has 2607 states and 3804 transitions. [2024-11-28 03:33:54,812 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 10.538461538461538) internal successors, (137), 14 states have internal predecessors, (137), 9 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 9 states have call predecessors, (31), 9 states have call successors, (31) [2024-11-28 03:33:54,812 INFO L276 IsEmpty]: Start isEmpty. Operand 2607 states and 3804 transitions. [2024-11-28 03:33:54,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-28 03:33:54,813 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:33:54,813 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:33:54,824 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (70)] Forceful destruction successful, exit code 0 [2024-11-28 03:33:55,013 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78,70 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:33:55,014 INFO L396 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 03:33:55,014 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:55,015 INFO L85 PathProgramCache]: Analyzing trace with hash 1676295468, now seen corresponding path program 1 times [2024-11-28 03:33:55,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:55,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496105458] [2024-11-28 03:33:55,015 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:55,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:55,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:33:55,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [918866041] [2024-11-28 03:33:55,034 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:55,035 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:33:55,035 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:33:55,037 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:33:55,040 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (71)] Waiting until timeout for monitored process [2024-11-28 03:33:55,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:55,116 INFO L256 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-28 03:33:55,119 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:33:57,097 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 3 proven. 35 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-11-28 03:33:57,097 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:34:22,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:34:22,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496105458] [2024-11-28 03:34:22,461 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:34:22,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [918866041] [2024-11-28 03:34:22,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [918866041] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:34:22,461 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:34:22,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2024-11-28 03:34:22,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099850285] [2024-11-28 03:34:22,461 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 03:34:22,461 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-28 03:34:22,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:34:22,462 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-28 03:34:22,462 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=361, Unknown=6, NotChecked=0, Total=462 [2024-11-28 03:34:22,462 INFO L87 Difference]: Start difference. First operand 2607 states and 3804 transitions. Second operand has 17 states, 16 states have (on average 4.5625) internal successors, (73), 16 states have internal predecessors, (73), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2024-11-28 03:34:25,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:34:25,504 INFO L93 Difference]: Finished difference Result 2682 states and 3872 transitions. [2024-11-28 03:34:25,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-28 03:34:25,504 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 4.5625) internal successors, (73), 16 states have internal predecessors, (73), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) Word has length 109 [2024-11-28 03:34:25,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:34:25,509 INFO L225 Difference]: With dead ends: 2682 [2024-11-28 03:34:25,509 INFO L226 Difference]: Without dead ends: 2681 [2024-11-28 03:34:25,510 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 25.6s TimeCoverageRelationStatistics Valid=150, Invalid=546, Unknown=6, NotChecked=0, Total=702 [2024-11-28 03:34:25,511 INFO L435 NwaCegarLoop]: 124 mSDtfsCounter, 456 mSDsluCounter, 773 mSDsCounter, 0 mSdLazyCounter, 1524 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 475 SdHoareTripleChecker+Valid, 897 SdHoareTripleChecker+Invalid, 1548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1524 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:34:25,511 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [475 Valid, 897 Invalid, 1548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1524 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-28 03:34:25,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2681 states. [2024-11-28 03:34:26,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2681 to 2607. [2024-11-28 03:34:26,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2607 states, 2240 states have (on average 1.4080357142857143) internal successors, (3154), 2283 states have internal predecessors, (3154), 321 states have call successors, (321), 2 states have call predecessors, (321), 2 states have return successors, (321), 321 states have call predecessors, (321), 321 states have call successors, (321) [2024-11-28 03:34:26,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2607 states to 2607 states and 3796 transitions. [2024-11-28 03:34:26,106 INFO L78 Accepts]: Start accepts. Automaton has 2607 states and 3796 transitions. Word has length 109 [2024-11-28 03:34:26,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:34:26,106 INFO L471 AbstractCegarLoop]: Abstraction has 2607 states and 3796 transitions. [2024-11-28 03:34:26,106 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 4.5625) internal successors, (73), 16 states have internal predecessors, (73), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2024-11-28 03:34:26,106 INFO L276 IsEmpty]: Start isEmpty. Operand 2607 states and 3796 transitions. [2024-11-28 03:34:26,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-28 03:34:26,107 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:34:26,107 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:34:26,115 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (71)] Ended with exit code 0 [2024-11-28 03:34:26,309 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79,71 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:34:26,310 INFO L396 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 03:34:26,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:34:26,310 INFO L85 PathProgramCache]: Analyzing trace with hash 425552051, now seen corresponding path program 1 times [2024-11-28 03:34:26,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:34:26,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840695843] [2024-11-28 03:34:26,310 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:34:26,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:34:26,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:34:26,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [329214303] [2024-11-28 03:34:26,330 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:34:26,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:34:26,330 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:34:26,332 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:34:26,336 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (72)] Waiting until timeout for monitored process [2024-11-28 03:34:26,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:34:26,404 INFO L256 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 55 conjuncts are in the unsatisfiable core [2024-11-28 03:34:26,406 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:34:28,316 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-28 03:34:28,316 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:34:29,935 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-28 03:34:29,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:34:29,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840695843] [2024-11-28 03:34:29,935 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:34:29,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [329214303] [2024-11-28 03:34:29,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [329214303] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:34:29,935 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 03:34:29,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 30 [2024-11-28 03:34:29,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545846088] [2024-11-28 03:34:29,935 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 03:34:29,936 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-11-28 03:34:29,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:34:29,936 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-11-28 03:34:29,937 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=828, Unknown=0, NotChecked=0, Total=930 [2024-11-28 03:34:29,937 INFO L87 Difference]: Start difference. First operand 2607 states and 3796 transitions. Second operand has 31 states, 30 states have (on average 4.6) internal successors, (138), 31 states have internal predecessors, (138), 7 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 5 states have call predecessors, (14), 7 states have call successors, (14) [2024-11-28 03:34:47,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:34:47,361 INFO L93 Difference]: Finished difference Result 2686 states and 3846 transitions. [2024-11-28 03:34:47,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2024-11-28 03:34:47,362 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 30 states have (on average 4.6) internal successors, (138), 31 states have internal predecessors, (138), 7 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 5 states have call predecessors, (14), 7 states have call successors, (14) Word has length 110 [2024-11-28 03:34:47,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:34:47,366 INFO L225 Difference]: With dead ends: 2686 [2024-11-28 03:34:47,366 INFO L226 Difference]: Without dead ends: 2685 [2024-11-28 03:34:47,367 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1035 ImplicationChecksByTransitivity, 7.2s TimeCoverageRelationStatistics Valid=648, Invalid=4608, Unknown=0, NotChecked=0, Total=5256 [2024-11-28 03:34:47,368 INFO L435 NwaCegarLoop]: 93 mSDtfsCounter, 1088 mSDsluCounter, 979 mSDsCounter, 0 mSdLazyCounter, 4367 mSolverCounterSat, 210 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1089 SdHoareTripleChecker+Valid, 1072 SdHoareTripleChecker+Invalid, 4577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 210 IncrementalHoareTripleChecker+Valid, 4367 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.9s IncrementalHoareTripleChecker+Time [2024-11-28 03:34:47,368 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1089 Valid, 1072 Invalid, 4577 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [210 Valid, 4367 Invalid, 0 Unknown, 0 Unchecked, 10.9s Time] [2024-11-28 03:34:47,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2685 states. [2024-11-28 03:34:48,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2685 to 2607. [2024-11-28 03:34:48,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2607 states, 2240 states have (on average 1.3879464285714285) internal successors, (3109), 2283 states have internal predecessors, (3109), 321 states have call successors, (321), 2 states have call predecessors, (321), 2 states have return successors, (321), 321 states have call predecessors, (321), 321 states have call successors, (321) [2024-11-28 03:34:48,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2607 states to 2607 states and 3751 transitions. [2024-11-28 03:34:48,054 INFO L78 Accepts]: Start accepts. Automaton has 2607 states and 3751 transitions. Word has length 110 [2024-11-28 03:34:48,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:34:48,055 INFO L471 AbstractCegarLoop]: Abstraction has 2607 states and 3751 transitions. [2024-11-28 03:34:48,055 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 30 states have (on average 4.6) internal successors, (138), 31 states have internal predecessors, (138), 7 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 5 states have call predecessors, (14), 7 states have call successors, (14) [2024-11-28 03:34:48,055 INFO L276 IsEmpty]: Start isEmpty. Operand 2607 states and 3751 transitions. [2024-11-28 03:34:48,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-28 03:34:48,055 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:34:48,055 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:34:48,062 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (72)] Ended with exit code 0 [2024-11-28 03:34:48,256 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80,72 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:34:48,256 INFO L396 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 03:34:48,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:34:48,256 INFO L85 PathProgramCache]: Analyzing trace with hash -2062139979, now seen corresponding path program 1 times [2024-11-28 03:34:48,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:34:48,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428447988] [2024-11-28 03:34:48,257 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:34:48,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:34:48,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:34:48,320 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-11-28 03:34:48,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:34:48,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428447988] [2024-11-28 03:34:48,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428447988] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:34:48,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:34:48,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:34:48,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044803002] [2024-11-28 03:34:48,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:34:48,321 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:34:48,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:34:48,321 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:34:48,321 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:34:48,321 INFO L87 Difference]: Start difference. First operand 2607 states and 3751 transitions. Second operand has 4 states, 3 states have (on average 19.666666666666668) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-28 03:34:49,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:34:49,062 INFO L93 Difference]: Finished difference Result 2607 states and 3751 transitions. [2024-11-28 03:34:49,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:34:49,063 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 19.666666666666668) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 113 [2024-11-28 03:34:49,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:34:49,066 INFO L225 Difference]: With dead ends: 2607 [2024-11-28 03:34:49,066 INFO L226 Difference]: Without dead ends: 2606 [2024-11-28 03:34:49,067 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 03:34:49,067 INFO L435 NwaCegarLoop]: 111 mSDtfsCounter, 23 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 273 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:34:49,068 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 273 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:34:49,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2606 states. [2024-11-28 03:34:49,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2606 to 2606. [2024-11-28 03:34:49,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2606 states, 2240 states have (on average 1.3830357142857144) internal successors, (3098), 2282 states have internal predecessors, (3098), 321 states have call successors, (321), 2 states have call predecessors, (321), 2 states have return successors, (321), 321 states have call predecessors, (321), 321 states have call successors, (321) [2024-11-28 03:34:49,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2606 states to 2606 states and 3740 transitions. [2024-11-28 03:34:49,844 INFO L78 Accepts]: Start accepts. Automaton has 2606 states and 3740 transitions. Word has length 113 [2024-11-28 03:34:49,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:34:49,844 INFO L471 AbstractCegarLoop]: Abstraction has 2606 states and 3740 transitions. [2024-11-28 03:34:49,845 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 19.666666666666668) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-28 03:34:49,845 INFO L276 IsEmpty]: Start isEmpty. Operand 2606 states and 3740 transitions. [2024-11-28 03:34:49,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-28 03:34:49,845 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:34:49,845 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:34:49,845 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2024-11-28 03:34:49,846 INFO L396 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 03:34:49,846 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:34:49,846 INFO L85 PathProgramCache]: Analyzing trace with hash 307211790, now seen corresponding path program 2 times [2024-11-28 03:34:49,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:34:49,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586688227] [2024-11-28 03:34:49,846 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:34:49,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:34:49,864 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:34:49,864 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 03:34:49,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [997051080] [2024-11-28 03:34:49,865 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:34:49,865 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:34:49,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:34:49,870 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:34:49,871 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (73)] Waiting until timeout for monitored process [2024-11-28 03:34:49,931 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:34:49,931 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:34:49,932 INFO L256 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-28 03:34:49,934 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:34:51,155 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-28 03:34:51,155 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:34:51,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:34:51,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586688227] [2024-11-28 03:34:51,407 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:34:51,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [997051080] [2024-11-28 03:34:51,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [997051080] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:34:51,407 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:34:51,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-11-28 03:34:51,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791804483] [2024-11-28 03:34:51,408 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 03:34:51,408 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 03:34:51,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:34:51,409 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 03:34:51,409 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2024-11-28 03:34:51,409 INFO L87 Difference]: Start difference. First operand 2606 states and 3740 transitions. Second operand has 14 states, 13 states have (on average 5.538461538461538) internal successors, (72), 14 states have internal predecessors, (72), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-28 03:34:54,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:34:54,659 INFO L93 Difference]: Finished difference Result 2666 states and 3780 transitions. [2024-11-28 03:34:54,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 03:34:54,660 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 5.538461538461538) internal successors, (72), 14 states have internal predecessors, (72), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 111 [2024-11-28 03:34:54,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:34:54,664 INFO L225 Difference]: With dead ends: 2666 [2024-11-28 03:34:54,664 INFO L226 Difference]: Without dead ends: 2665 [2024-11-28 03:34:54,665 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=77, Invalid=429, Unknown=0, NotChecked=0, Total=506 [2024-11-28 03:34:54,665 INFO L435 NwaCegarLoop]: 170 mSDtfsCounter, 344 mSDsluCounter, 889 mSDsCounter, 0 mSdLazyCounter, 1649 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 356 SdHoareTripleChecker+Valid, 1059 SdHoareTripleChecker+Invalid, 1676 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1649 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:34:54,665 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [356 Valid, 1059 Invalid, 1676 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1649 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-28 03:34:54,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2665 states. [2024-11-28 03:34:55,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2665 to 2606. [2024-11-28 03:34:55,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2606 states, 2240 states have (on average 1.3825892857142856) internal successors, (3097), 2282 states have internal predecessors, (3097), 321 states have call successors, (321), 2 states have call predecessors, (321), 2 states have return successors, (321), 321 states have call predecessors, (321), 321 states have call successors, (321) [2024-11-28 03:34:55,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2606 states to 2606 states and 3739 transitions. [2024-11-28 03:34:55,314 INFO L78 Accepts]: Start accepts. Automaton has 2606 states and 3739 transitions. Word has length 111 [2024-11-28 03:34:55,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:34:55,314 INFO L471 AbstractCegarLoop]: Abstraction has 2606 states and 3739 transitions. [2024-11-28 03:34:55,315 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 5.538461538461538) internal successors, (72), 14 states have internal predecessors, (72), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-28 03:34:55,315 INFO L276 IsEmpty]: Start isEmpty. Operand 2606 states and 3739 transitions. [2024-11-28 03:34:55,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-28 03:34:55,315 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:34:55,315 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:34:55,323 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (73)] Forceful destruction successful, exit code 0 [2024-11-28 03:34:55,516 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82,73 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:34:55,516 INFO L396 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 03:34:55,516 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:34:55,516 INFO L85 PathProgramCache]: Analyzing trace with hash 498171797, now seen corresponding path program 1 times [2024-11-28 03:34:55,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:34:55,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932294246] [2024-11-28 03:34:55,516 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:34:55,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:34:55,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:34:55,604 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-11-28 03:34:55,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:34:55,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932294246] [2024-11-28 03:34:55,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1932294246] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:34:55,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [373778312] [2024-11-28 03:34:55,604 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:34:55,604 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:34:55,604 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:34:55,609 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:34:55,612 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (74)] Waiting until timeout for monitored process [2024-11-28 03:34:55,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:34:55,681 INFO L256 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 03:34:55,695 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:34:55,848 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-11-28 03:34:55,848 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:34:56,050 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-11-28 03:34:56,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [373778312] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:34:56,050 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:34:56,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-11-28 03:34:56,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878235150] [2024-11-28 03:34:56,050 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:34:56,051 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 03:34:56,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:34:56,051 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 03:34:56,051 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:34:56,052 INFO L87 Difference]: Start difference. First operand 2606 states and 3739 transitions. Second operand has 7 states, 6 states have (on average 22.166666666666668) internal successors, (133), 7 states have internal predecessors, (133), 6 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 6 states have call predecessors, (24), 6 states have call successors, (24) [2024-11-28 03:34:57,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:34:57,213 INFO L93 Difference]: Finished difference Result 3467 states and 4952 transitions. [2024-11-28 03:34:57,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:34:57,213 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 22.166666666666668) internal successors, (133), 7 states have internal predecessors, (133), 6 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 6 states have call predecessors, (24), 6 states have call successors, (24) Word has length 114 [2024-11-28 03:34:57,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:34:57,218 INFO L225 Difference]: With dead ends: 3467 [2024-11-28 03:34:57,218 INFO L226 Difference]: Without dead ends: 3466 [2024-11-28 03:34:57,218 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 224 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:34:57,219 INFO L435 NwaCegarLoop]: 114 mSDtfsCounter, 104 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 434 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:34:57,219 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 434 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:34:57,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3466 states. [2024-11-28 03:34:58,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3466 to 3322. [2024-11-28 03:34:58,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3322 states, 2861 states have (on average 1.3729465221950368) internal successors, (3928), 2903 states have internal predecessors, (3928), 416 states have call successors, (416), 2 states have call predecessors, (416), 2 states have return successors, (416), 416 states have call predecessors, (416), 416 states have call successors, (416) [2024-11-28 03:34:58,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3322 states to 3322 states and 4760 transitions. [2024-11-28 03:34:58,146 INFO L78 Accepts]: Start accepts. Automaton has 3322 states and 4760 transitions. Word has length 114 [2024-11-28 03:34:58,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:34:58,147 INFO L471 AbstractCegarLoop]: Abstraction has 3322 states and 4760 transitions. [2024-11-28 03:34:58,147 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 22.166666666666668) internal successors, (133), 7 states have internal predecessors, (133), 6 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 6 states have call predecessors, (24), 6 states have call successors, (24) [2024-11-28 03:34:58,147 INFO L276 IsEmpty]: Start isEmpty. Operand 3322 states and 4760 transitions. [2024-11-28 03:34:58,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-28 03:34:58,148 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:34:58,148 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:34:58,154 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (74)] Ended with exit code 0 [2024-11-28 03:34:58,348 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83,74 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:34:58,348 INFO L396 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 03:34:58,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:34:58,349 INFO L85 PathProgramCache]: Analyzing trace with hash -898070728, now seen corresponding path program 1 times [2024-11-28 03:34:58,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:34:58,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108224935] [2024-11-28 03:34:58,349 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:34:58,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:34:58,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:34:58,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1861030140] [2024-11-28 03:34:58,369 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:34:58,369 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:34:58,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:34:58,374 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:34:58,376 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (75)] Waiting until timeout for monitored process [2024-11-28 03:34:58,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:34:58,440 INFO L256 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 03:34:58,442 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:34:58,769 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 3 proven. 21 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2024-11-28 03:34:58,769 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:34:59,126 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 3 proven. 21 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2024-11-28 03:34:59,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:34:59,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108224935] [2024-11-28 03:34:59,127 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:34:59,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1861030140] [2024-11-28 03:34:59,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1861030140] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:34:59,127 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 03:34:59,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2024-11-28 03:34:59,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845427065] [2024-11-28 03:34:59,127 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 03:34:59,128 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 03:34:59,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:34:59,128 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 03:34:59,128 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:34:59,128 INFO L87 Difference]: Start difference. First operand 3322 states and 4760 transitions. Second operand has 10 states, 9 states have (on average 13.444444444444445) internal successors, (121), 10 states have internal predecessors, (121), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) [2024-11-28 03:35:01,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:35:01,698 INFO L93 Difference]: Finished difference Result 4067 states and 5822 transitions. [2024-11-28 03:35:01,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-11-28 03:35:01,698 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 13.444444444444445) internal successors, (121), 10 states have internal predecessors, (121), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) Word has length 115 [2024-11-28 03:35:01,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:35:01,704 INFO L225 Difference]: With dead ends: 4067 [2024-11-28 03:35:01,704 INFO L226 Difference]: Without dead ends: 4066 [2024-11-28 03:35:01,705 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 220 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 413 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=387, Invalid=1095, Unknown=0, NotChecked=0, Total=1482 [2024-11-28 03:35:01,705 INFO L435 NwaCegarLoop]: 137 mSDtfsCounter, 605 mSDsluCounter, 807 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 608 SdHoareTripleChecker+Valid, 944 SdHoareTripleChecker+Invalid, 579 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 03:35:01,705 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [608 Valid, 944 Invalid, 579 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 519 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 03:35:01,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4066 states. [2024-11-28 03:35:02,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4066 to 3944. [2024-11-28 03:35:02,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3944 states, 3399 states have (on average 1.3918799646954987) internal successors, (4731), 3441 states have internal predecessors, (4731), 500 states have call successors, (500), 2 states have call predecessors, (500), 2 states have return successors, (500), 500 states have call predecessors, (500), 500 states have call successors, (500) [2024-11-28 03:35:02,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3944 states to 3944 states and 5731 transitions. [2024-11-28 03:35:02,783 INFO L78 Accepts]: Start accepts. Automaton has 3944 states and 5731 transitions. Word has length 115 [2024-11-28 03:35:02,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:35:02,783 INFO L471 AbstractCegarLoop]: Abstraction has 3944 states and 5731 transitions. [2024-11-28 03:35:02,783 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 13.444444444444445) internal successors, (121), 10 states have internal predecessors, (121), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) [2024-11-28 03:35:02,783 INFO L276 IsEmpty]: Start isEmpty. Operand 3944 states and 5731 transitions. [2024-11-28 03:35:02,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-28 03:35:02,784 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:35:02,784 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:35:02,795 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (75)] Forceful destruction successful, exit code 0 [2024-11-28 03:35:02,985 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 75 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable84 [2024-11-28 03:35:02,985 INFO L396 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 03:35:02,985 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:35:02,986 INFO L85 PathProgramCache]: Analyzing trace with hash 2000222709, now seen corresponding path program 1 times [2024-11-28 03:35:02,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:35:02,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799125229] [2024-11-28 03:35:02,986 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:35:02,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:35:02,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:35:03,097 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-11-28 03:35:03,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:35:03,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799125229] [2024-11-28 03:35:03,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1799125229] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:35:03,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1385517133] [2024-11-28 03:35:03,097 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:35:03,098 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:35:03,098 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:35:03,100 INFO L229 MonitoredProcess]: Starting monitored process 76 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:35:03,104 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (76)] Waiting until timeout for monitored process [2024-11-28 03:35:03,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:35:03,161 INFO L256 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 03:35:03,163 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:35:03,560 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-11-28 03:35:03,561 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:35:03,806 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-11-28 03:35:03,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1385517133] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:35:03,807 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:35:03,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2024-11-28 03:35:03,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982959308] [2024-11-28 03:35:03,807 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:35:03,807 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 03:35:03,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:35:03,808 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 03:35:03,808 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2024-11-28 03:35:03,808 INFO L87 Difference]: Start difference. First operand 3944 states and 5731 transitions. Second operand has 11 states, 10 states have (on average 16.6) internal successors, (166), 11 states have internal predecessors, (166), 7 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 7 states have call predecessors, (28), 7 states have call successors, (28) [2024-11-28 03:35:06,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:35:06,062 INFO L93 Difference]: Finished difference Result 6022 states and 8800 transitions. [2024-11-28 03:35:06,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 03:35:06,063 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 16.6) internal successors, (166), 11 states have internal predecessors, (166), 7 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 7 states have call predecessors, (28), 7 states have call successors, (28) Word has length 116 [2024-11-28 03:35:06,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:35:06,072 INFO L225 Difference]: With dead ends: 6022 [2024-11-28 03:35:06,073 INFO L226 Difference]: Without dead ends: 6021 [2024-11-28 03:35:06,074 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 225 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=84, Invalid=126, Unknown=0, NotChecked=0, Total=210 [2024-11-28 03:35:06,074 INFO L435 NwaCegarLoop]: 89 mSDtfsCounter, 479 mSDsluCounter, 476 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 483 SdHoareTripleChecker+Valid, 565 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:35:06,075 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [483 Valid, 565 Invalid, 306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 273 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 03:35:06,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6021 states. [2024-11-28 03:35:07,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6021 to 4720. [2024-11-28 03:35:07,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4720 states, 4079 states have (on average 1.3878401569012013) internal successors, (5661), 4121 states have internal predecessors, (5661), 596 states have call successors, (596), 2 states have call predecessors, (596), 2 states have return successors, (596), 596 states have call predecessors, (596), 596 states have call successors, (596) [2024-11-28 03:35:07,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4720 states to 4720 states and 6853 transitions. [2024-11-28 03:35:07,358 INFO L78 Accepts]: Start accepts. Automaton has 4720 states and 6853 transitions. Word has length 116 [2024-11-28 03:35:07,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:35:07,358 INFO L471 AbstractCegarLoop]: Abstraction has 4720 states and 6853 transitions. [2024-11-28 03:35:07,358 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 16.6) internal successors, (166), 11 states have internal predecessors, (166), 7 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 7 states have call predecessors, (28), 7 states have call successors, (28) [2024-11-28 03:35:07,358 INFO L276 IsEmpty]: Start isEmpty. Operand 4720 states and 6853 transitions. [2024-11-28 03:35:07,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-28 03:35:07,359 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:35:07,359 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:35:07,366 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (76)] Forceful destruction successful, exit code 0 [2024-11-28 03:35:07,560 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 76 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable85 [2024-11-28 03:35:07,560 INFO L396 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 03:35:07,560 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:35:07,560 INFO L85 PathProgramCache]: Analyzing trace with hash -64752759, now seen corresponding path program 1 times [2024-11-28 03:35:07,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:35:07,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150255784] [2024-11-28 03:35:07,560 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:35:07,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:35:07,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:35:07,668 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 3 proven. 24 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-11-28 03:35:07,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:35:07,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150255784] [2024-11-28 03:35:07,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150255784] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:35:07,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1466940630] [2024-11-28 03:35:07,669 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:35:07,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:35:07,669 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:35:07,674 INFO L229 MonitoredProcess]: Starting monitored process 77 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:35:07,676 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (77)] Waiting until timeout for monitored process [2024-11-28 03:35:07,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:35:07,750 INFO L256 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 03:35:07,752 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:35:07,961 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 3 proven. 24 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-11-28 03:35:07,961 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:35:08,290 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 3 proven. 24 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-11-28 03:35:08,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1466940630] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:35:08,291 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:35:08,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2024-11-28 03:35:08,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733194887] [2024-11-28 03:35:08,291 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:35:08,291 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 03:35:08,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:35:08,292 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 03:35:08,292 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:35:08,292 INFO L87 Difference]: Start difference. First operand 4720 states and 6853 transitions. Second operand has 10 states, 9 states have (on average 13.88888888888889) internal successors, (125), 10 states have internal predecessors, (125), 5 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 5 states have call predecessors, (20), 5 states have call successors, (20) [2024-11-28 03:35:11,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:35:11,334 INFO L93 Difference]: Finished difference Result 6800 states and 9835 transitions. [2024-11-28 03:35:11,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-28 03:35:11,335 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 13.88888888888889) internal successors, (125), 10 states have internal predecessors, (125), 5 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 5 states have call predecessors, (20), 5 states have call successors, (20) Word has length 122 [2024-11-28 03:35:11,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:35:11,344 INFO L225 Difference]: With dead ends: 6800 [2024-11-28 03:35:11,345 INFO L226 Difference]: Without dead ends: 6799 [2024-11-28 03:35:11,346 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 265 GetRequests, 239 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=212, Invalid=544, Unknown=0, NotChecked=0, Total=756 [2024-11-28 03:35:11,346 INFO L435 NwaCegarLoop]: 168 mSDtfsCounter, 580 mSDsluCounter, 1086 mSDsCounter, 0 mSdLazyCounter, 509 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 584 SdHoareTripleChecker+Valid, 1254 SdHoareTripleChecker+Invalid, 555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 03:35:11,346 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [584 Valid, 1254 Invalid, 555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 509 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 03:35:11,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6799 states. [2024-11-28 03:35:13,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6799 to 6339. [2024-11-28 03:35:13,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6339 states, 5502 states have (on average 1.396401308615049) internal successors, (7683), 5544 states have internal predecessors, (7683), 792 states have call successors, (792), 2 states have call predecessors, (792), 2 states have return successors, (792), 792 states have call predecessors, (792), 792 states have call successors, (792) [2024-11-28 03:35:13,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6339 states to 6339 states and 9267 transitions. [2024-11-28 03:35:13,355 INFO L78 Accepts]: Start accepts. Automaton has 6339 states and 9267 transitions. Word has length 122 [2024-11-28 03:35:13,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:35:13,355 INFO L471 AbstractCegarLoop]: Abstraction has 6339 states and 9267 transitions. [2024-11-28 03:35:13,355 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 13.88888888888889) internal successors, (125), 10 states have internal predecessors, (125), 5 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 5 states have call predecessors, (20), 5 states have call successors, (20) [2024-11-28 03:35:13,355 INFO L276 IsEmpty]: Start isEmpty. Operand 6339 states and 9267 transitions. [2024-11-28 03:35:13,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-28 03:35:13,356 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:35:13,356 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:35:13,363 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (77)] Ended with exit code 0 [2024-11-28 03:35:13,556 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 77 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable86 [2024-11-28 03:35:13,556 INFO L396 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 03:35:13,557 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:35:13,557 INFO L85 PathProgramCache]: Analyzing trace with hash 541591117, now seen corresponding path program 1 times [2024-11-28 03:35:13,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:35:13,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165938297] [2024-11-28 03:35:13,557 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:35:13,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:35:13,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:35:13,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [103701501] [2024-11-28 03:35:13,570 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:35:13,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:35:13,571 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:35:13,573 INFO L229 MonitoredProcess]: Starting monitored process 78 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:35:13,578 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (78)] Waiting until timeout for monitored process [2024-11-28 03:35:13,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:35:13,647 INFO L256 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 03:35:13,648 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:35:14,285 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-11-28 03:35:14,285 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:35:14,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:35:14,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165938297] [2024-11-28 03:35:14,572 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:35:14,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [103701501] [2024-11-28 03:35:14,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [103701501] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:35:14,572 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:35:14,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-11-28 03:35:14,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157064310] [2024-11-28 03:35:14,573 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 03:35:14,573 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 03:35:14,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:35:14,573 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 03:35:14,573 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:35:14,574 INFO L87 Difference]: Start difference. First operand 6339 states and 9267 transitions. Second operand has 7 states, 6 states have (on average 11.666666666666666) internal successors, (70), 7 states have internal predecessors, (70), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-28 03:35:16,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:35:16,763 INFO L93 Difference]: Finished difference Result 6520 states and 9484 transitions. [2024-11-28 03:35:16,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 03:35:16,764 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 11.666666666666666) internal successors, (70), 7 states have internal predecessors, (70), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 124 [2024-11-28 03:35:16,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:35:16,774 INFO L225 Difference]: With dead ends: 6520 [2024-11-28 03:35:16,774 INFO L226 Difference]: Without dead ends: 6519 [2024-11-28 03:35:16,775 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:35:16,776 INFO L435 NwaCegarLoop]: 100 mSDtfsCounter, 176 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 433 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:35:16,776 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 433 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 03:35:16,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6519 states. [2024-11-28 03:35:18,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6519 to 6346. [2024-11-28 03:35:18,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6346 states, 5509 states have (on average 1.3958976220729715) internal successors, (7690), 5551 states have internal predecessors, (7690), 792 states have call successors, (792), 2 states have call predecessors, (792), 2 states have return successors, (792), 792 states have call predecessors, (792), 792 states have call successors, (792) [2024-11-28 03:35:18,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6346 states to 6346 states and 9274 transitions. [2024-11-28 03:35:18,460 INFO L78 Accepts]: Start accepts. Automaton has 6346 states and 9274 transitions. Word has length 124 [2024-11-28 03:35:18,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:35:18,460 INFO L471 AbstractCegarLoop]: Abstraction has 6346 states and 9274 transitions. [2024-11-28 03:35:18,460 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 11.666666666666666) internal successors, (70), 7 states have internal predecessors, (70), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-28 03:35:18,460 INFO L276 IsEmpty]: Start isEmpty. Operand 6346 states and 9274 transitions. [2024-11-28 03:35:18,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-28 03:35:18,461 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:35:18,461 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:35:18,467 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (78)] Forceful destruction successful, exit code 0 [2024-11-28 03:35:18,661 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87,78 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:35:18,662 INFO L396 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 03:35:18,662 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:35:18,662 INFO L85 PathProgramCache]: Analyzing trace with hash 795902405, now seen corresponding path program 1 times [2024-11-28 03:35:18,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:35:18,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143304009] [2024-11-28 03:35:18,662 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:35:18,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:35:18,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:35:18,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [597043143] [2024-11-28 03:35:18,676 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:35:18,676 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:35:18,676 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:35:18,681 INFO L229 MonitoredProcess]: Starting monitored process 79 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:35:18,687 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (79)] Waiting until timeout for monitored process [2024-11-28 03:35:18,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:35:18,758 INFO L256 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-28 03:35:18,759 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:35:21,092 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2024-11-28 03:35:21,092 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:35:27,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:35:27,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143304009] [2024-11-28 03:35:27,795 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:35:27,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [597043143] [2024-11-28 03:35:27,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [597043143] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:35:27,795 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:35:27,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-11-28 03:35:27,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842164282] [2024-11-28 03:35:27,795 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 03:35:27,796 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 03:35:27,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:35:27,796 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 03:35:27,796 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=258, Unknown=2, NotChecked=0, Total=342 [2024-11-28 03:35:27,796 INFO L87 Difference]: Start difference. First operand 6346 states and 9274 transitions. Second operand has 14 states, 13 states have (on average 6.076923076923077) internal successors, (79), 14 states have internal predecessors, (79), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-28 03:35:32,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:35:32,499 INFO L93 Difference]: Finished difference Result 7964 states and 11498 transitions. [2024-11-28 03:35:32,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-28 03:35:32,500 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 6.076923076923077) internal successors, (79), 14 states have internal predecessors, (79), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) Word has length 130 [2024-11-28 03:35:32,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:35:32,510 INFO L225 Difference]: With dead ends: 7964 [2024-11-28 03:35:32,510 INFO L226 Difference]: Without dead ends: 7962 [2024-11-28 03:35:32,512 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=179, Invalid=521, Unknown=2, NotChecked=0, Total=702 [2024-11-28 03:35:32,512 INFO L435 NwaCegarLoop]: 150 mSDtfsCounter, 473 mSDsluCounter, 940 mSDsCounter, 0 mSdLazyCounter, 1247 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 485 SdHoareTripleChecker+Valid, 1090 SdHoareTripleChecker+Invalid, 1284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-28 03:35:32,512 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [485 Valid, 1090 Invalid, 1284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1247 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-28 03:35:32,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7962 states. [2024-11-28 03:35:34,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7962 to 7772. [2024-11-28 03:35:34,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7772 states, 6751 states have (on average 1.3783143238038809) internal successors, (9305), 6793 states have internal predecessors, (9305), 976 states have call successors, (976), 2 states have call predecessors, (976), 2 states have return successors, (976), 976 states have call predecessors, (976), 976 states have call successors, (976) [2024-11-28 03:35:34,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7772 states to 7772 states and 11257 transitions. [2024-11-28 03:35:34,647 INFO L78 Accepts]: Start accepts. Automaton has 7772 states and 11257 transitions. Word has length 130 [2024-11-28 03:35:34,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:35:34,648 INFO L471 AbstractCegarLoop]: Abstraction has 7772 states and 11257 transitions. [2024-11-28 03:35:34,648 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 6.076923076923077) internal successors, (79), 14 states have internal predecessors, (79), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-28 03:35:34,648 INFO L276 IsEmpty]: Start isEmpty. Operand 7772 states and 11257 transitions. [2024-11-28 03:35:34,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-28 03:35:34,649 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:35:34,650 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:35:34,660 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (79)] Ended with exit code 0 [2024-11-28 03:35:34,850 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88,79 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:35:34,851 INFO L396 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 03:35:34,851 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:35:34,851 INFO L85 PathProgramCache]: Analyzing trace with hash -858516542, now seen corresponding path program 1 times [2024-11-28 03:35:34,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:35:34,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227032530] [2024-11-28 03:35:34,851 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:35:34,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:35:34,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:35:34,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [201557866] [2024-11-28 03:35:34,877 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:35:34,878 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:35:34,878 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:35:34,880 INFO L229 MonitoredProcess]: Starting monitored process 80 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:35:34,884 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (80)] Waiting until timeout for monitored process [2024-11-28 03:35:34,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:35:34,968 INFO L256 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-28 03:35:34,970 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:35:36,415 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 6 proven. 35 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2024-11-28 03:35:36,415 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:35:36,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:35:36,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227032530] [2024-11-28 03:35:36,878 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:35:36,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [201557866] [2024-11-28 03:35:36,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [201557866] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:35:36,878 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:35:36,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2024-11-28 03:35:36,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849932374] [2024-11-28 03:35:36,879 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 03:35:36,879 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-28 03:35:36,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:35:36,879 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-28 03:35:36,880 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=296, Unknown=0, NotChecked=0, Total=380 [2024-11-28 03:35:36,880 INFO L87 Difference]: Start difference. First operand 7772 states and 11257 transitions. Second operand has 16 states, 15 states have (on average 5.333333333333333) internal successors, (80), 15 states have internal predecessors, (80), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-28 03:35:41,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:35:41,528 INFO L93 Difference]: Finished difference Result 8815 states and 12714 transitions. [2024-11-28 03:35:41,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-28 03:35:41,529 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 5.333333333333333) internal successors, (80), 15 states have internal predecessors, (80), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 131 [2024-11-28 03:35:41,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:35:41,541 INFO L225 Difference]: With dead ends: 8815 [2024-11-28 03:35:41,541 INFO L226 Difference]: Without dead ends: 8813 [2024-11-28 03:35:41,543 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=250, Invalid=872, Unknown=0, NotChecked=0, Total=1122 [2024-11-28 03:35:41,544 INFO L435 NwaCegarLoop]: 131 mSDtfsCounter, 527 mSDsluCounter, 797 mSDsCounter, 0 mSdLazyCounter, 1538 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 531 SdHoareTripleChecker+Valid, 928 SdHoareTripleChecker+Invalid, 1594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 1538 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-28 03:35:41,544 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [531 Valid, 928 Invalid, 1594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 1538 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-28 03:35:41,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8813 states. [2024-11-28 03:35:43,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8813 to 6599. [2024-11-28 03:35:43,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6599 states, 5734 states have (on average 1.382281130101151) internal successors, (7926), 5776 states have internal predecessors, (7926), 820 states have call successors, (820), 2 states have call predecessors, (820), 2 states have return successors, (820), 820 states have call predecessors, (820), 820 states have call successors, (820) [2024-11-28 03:35:43,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6599 states to 6599 states and 9566 transitions. [2024-11-28 03:35:43,465 INFO L78 Accepts]: Start accepts. Automaton has 6599 states and 9566 transitions. Word has length 131 [2024-11-28 03:35:43,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:35:43,466 INFO L471 AbstractCegarLoop]: Abstraction has 6599 states and 9566 transitions. [2024-11-28 03:35:43,466 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 5.333333333333333) internal successors, (80), 15 states have internal predecessors, (80), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-28 03:35:43,466 INFO L276 IsEmpty]: Start isEmpty. Operand 6599 states and 9566 transitions. [2024-11-28 03:35:43,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-28 03:35:43,466 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:35:43,467 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:35:43,474 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (80)] Forceful destruction successful, exit code 0 [2024-11-28 03:35:43,667 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 80 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable89 [2024-11-28 03:35:43,667 INFO L396 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 03:35:43,667 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:35:43,667 INFO L85 PathProgramCache]: Analyzing trace with hash -1096829050, now seen corresponding path program 1 times [2024-11-28 03:35:43,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:35:43,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962422956] [2024-11-28 03:35:43,668 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:35:43,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:35:43,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:35:43,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1358931759] [2024-11-28 03:35:43,683 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:35:43,683 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:35:43,683 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:35:43,686 INFO L229 MonitoredProcess]: Starting monitored process 81 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:35:43,690 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (81)] Waiting until timeout for monitored process [2024-11-28 03:35:43,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:35:43,766 INFO L256 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-28 03:35:43,768 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:35:46,004 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2024-11-28 03:35:46,004 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:35:50,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:35:50,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962422956] [2024-11-28 03:35:50,689 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:35:50,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1358931759] [2024-11-28 03:35:50,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1358931759] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:35:50,690 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:35:50,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-11-28 03:35:50,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407311089] [2024-11-28 03:35:50,690 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 03:35:50,690 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 03:35:50,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:35:50,691 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 03:35:50,691 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=256, Unknown=1, NotChecked=0, Total=342 [2024-11-28 03:35:50,691 INFO L87 Difference]: Start difference. First operand 6599 states and 9566 transitions. Second operand has 14 states, 13 states have (on average 6.153846153846154) internal successors, (80), 14 states have internal predecessors, (80), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-28 03:35:55,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:35:55,161 INFO L93 Difference]: Finished difference Result 7964 states and 11416 transitions. [2024-11-28 03:35:55,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-28 03:35:55,162 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 6.153846153846154) internal successors, (80), 14 states have internal predecessors, (80), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) Word has length 131 [2024-11-28 03:35:55,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:35:55,171 INFO L225 Difference]: With dead ends: 7964 [2024-11-28 03:35:55,171 INFO L226 Difference]: Without dead ends: 7962 [2024-11-28 03:35:55,172 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=211, Invalid=600, Unknown=1, NotChecked=0, Total=812 [2024-11-28 03:35:55,173 INFO L435 NwaCegarLoop]: 118 mSDtfsCounter, 500 mSDsluCounter, 759 mSDsCounter, 0 mSdLazyCounter, 1062 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 512 SdHoareTripleChecker+Valid, 877 SdHoareTripleChecker+Invalid, 1102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 1062 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-28 03:35:55,173 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [512 Valid, 877 Invalid, 1102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 1062 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-28 03:35:55,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7962 states. [2024-11-28 03:35:57,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7962 to 7773. [2024-11-28 03:35:57,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7773 states, 6752 states have (on average 1.3664099526066351) internal successors, (9226), 6794 states have internal predecessors, (9226), 976 states have call successors, (976), 2 states have call predecessors, (976), 2 states have return successors, (976), 976 states have call predecessors, (976), 976 states have call successors, (976) [2024-11-28 03:35:57,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7773 states to 7773 states and 11178 transitions. [2024-11-28 03:35:57,322 INFO L78 Accepts]: Start accepts. Automaton has 7773 states and 11178 transitions. Word has length 131 [2024-11-28 03:35:57,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:35:57,323 INFO L471 AbstractCegarLoop]: Abstraction has 7773 states and 11178 transitions. [2024-11-28 03:35:57,323 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 6.153846153846154) internal successors, (80), 14 states have internal predecessors, (80), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-28 03:35:57,323 INFO L276 IsEmpty]: Start isEmpty. Operand 7773 states and 11178 transitions. [2024-11-28 03:35:57,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-28 03:35:57,323 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:35:57,324 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:35:57,331 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (81)] Ended with exit code 0 [2024-11-28 03:35:57,524 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90,81 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:35:57,524 INFO L396 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 03:35:57,524 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:35:57,525 INFO L85 PathProgramCache]: Analyzing trace with hash 358037991, now seen corresponding path program 1 times [2024-11-28 03:35:57,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:35:57,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691741602] [2024-11-28 03:35:57,525 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:35:57,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:35:57,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:35:57,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1516744501] [2024-11-28 03:35:57,541 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:35:57,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:35:57,541 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:35:57,545 INFO L229 MonitoredProcess]: Starting monitored process 82 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:35:57,547 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (82)] Waiting until timeout for monitored process [2024-11-28 03:35:57,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:35:57,618 INFO L256 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 03:35:57,620 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:35:57,855 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2024-11-28 03:35:57,855 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:35:58,146 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2024-11-28 03:35:58,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:35:58,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691741602] [2024-11-28 03:35:58,146 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:35:58,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1516744501] [2024-11-28 03:35:58,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1516744501] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:35:58,146 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 03:35:58,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2024-11-28 03:35:58,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140965276] [2024-11-28 03:35:58,147 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 03:35:58,147 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:35:58,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:35:58,147 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:35:58,147 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:35:58,148 INFO L87 Difference]: Start difference. First operand 7773 states and 11178 transitions. Second operand has 6 states, 5 states have (on average 12.0) internal successors, (60), 6 states have internal predecessors, (60), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-28 03:36:00,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:36:00,882 INFO L93 Difference]: Finished difference Result 7816 states and 11199 transitions. [2024-11-28 03:36:00,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 03:36:00,883 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.0) internal successors, (60), 6 states have internal predecessors, (60), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 132 [2024-11-28 03:36:00,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:36:00,894 INFO L225 Difference]: With dead ends: 7816 [2024-11-28 03:36:00,895 INFO L226 Difference]: Without dead ends: 7814 [2024-11-28 03:36:00,897 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 264 GetRequests, 257 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:36:00,897 INFO L435 NwaCegarLoop]: 152 mSDtfsCounter, 186 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 429 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:36:00,897 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 429 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 03:36:00,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7814 states. [2024-11-28 03:36:02,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7814 to 6633. [2024-11-28 03:36:02,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6633 states, 5765 states have (on average 1.3743278404163053) internal successors, (7923), 5807 states have internal predecessors, (7923), 823 states have call successors, (823), 2 states have call predecessors, (823), 2 states have return successors, (823), 823 states have call predecessors, (823), 823 states have call successors, (823) [2024-11-28 03:36:02,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6633 states to 6633 states and 9569 transitions. [2024-11-28 03:36:02,792 INFO L78 Accepts]: Start accepts. Automaton has 6633 states and 9569 transitions. Word has length 132 [2024-11-28 03:36:02,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:36:02,792 INFO L471 AbstractCegarLoop]: Abstraction has 6633 states and 9569 transitions. [2024-11-28 03:36:02,792 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.0) internal successors, (60), 6 states have internal predecessors, (60), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-28 03:36:02,792 INFO L276 IsEmpty]: Start isEmpty. Operand 6633 states and 9569 transitions. [2024-11-28 03:36:02,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-28 03:36:02,793 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:36:02,793 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:36:02,801 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (82)] Forceful destruction successful, exit code 0 [2024-11-28 03:36:02,994 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91,82 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:36:02,994 INFO L396 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 03:36:02,994 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:36:02,994 INFO L85 PathProgramCache]: Analyzing trace with hash -1785723992, now seen corresponding path program 1 times [2024-11-28 03:36:02,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:36:02,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075025701] [2024-11-28 03:36:02,995 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:36:02,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:36:03,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:36:03,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [658311940] [2024-11-28 03:36:03,009 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:36:03,009 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:36:03,009 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:36:03,014 INFO L229 MonitoredProcess]: Starting monitored process 83 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:36:03,015 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (83)] Waiting until timeout for monitored process [2024-11-28 03:36:03,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:36:03,086 INFO L256 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-28 03:36:03,088 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:36:05,260 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2024-11-28 03:36:05,261 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:36:34,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:36:34,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075025701] [2024-11-28 03:36:34,630 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:36:34,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [658311940] [2024-11-28 03:36:34,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [658311940] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:36:34,631 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:36:34,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2024-11-28 03:36:34,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217879826] [2024-11-28 03:36:34,631 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 03:36:34,631 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-28 03:36:34,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:36:34,632 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-28 03:36:34,632 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=324, Unknown=7, NotChecked=0, Total=420 [2024-11-28 03:36:34,632 INFO L87 Difference]: Start difference. First operand 6633 states and 9569 transitions. Second operand has 15 states, 14 states have (on average 5.857142857142857) internal successors, (82), 15 states have internal predecessors, (82), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-28 03:36:39,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:36:39,658 INFO L93 Difference]: Finished difference Result 7966 states and 11344 transitions. [2024-11-28 03:36:39,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-28 03:36:39,658 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 5.857142857142857) internal successors, (82), 15 states have internal predecessors, (82), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) Word has length 133 [2024-11-28 03:36:39,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:36:39,671 INFO L225 Difference]: With dead ends: 7966 [2024-11-28 03:36:39,671 INFO L226 Difference]: Without dead ends: 7965 [2024-11-28 03:36:39,673 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 29.4s TimeCoverageRelationStatistics Valid=186, Invalid=619, Unknown=7, NotChecked=0, Total=812 [2024-11-28 03:36:39,674 INFO L435 NwaCegarLoop]: 151 mSDtfsCounter, 546 mSDsluCounter, 947 mSDsCounter, 0 mSdLazyCounter, 1434 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 558 SdHoareTripleChecker+Valid, 1098 SdHoareTripleChecker+Invalid, 1475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:36:39,674 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [558 Valid, 1098 Invalid, 1475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1434 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-28 03:36:39,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7965 states. [2024-11-28 03:36:41,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7965 to 6635. [2024-11-28 03:36:41,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6635 states, 5767 states have (on average 1.3741980232356512) internal successors, (7925), 5809 states have internal predecessors, (7925), 823 states have call successors, (823), 2 states have call predecessors, (823), 2 states have return successors, (823), 823 states have call predecessors, (823), 823 states have call successors, (823) [2024-11-28 03:36:41,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6635 states to 6635 states and 9571 transitions. [2024-11-28 03:36:41,634 INFO L78 Accepts]: Start accepts. Automaton has 6635 states and 9571 transitions. Word has length 133 [2024-11-28 03:36:41,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:36:41,634 INFO L471 AbstractCegarLoop]: Abstraction has 6635 states and 9571 transitions. [2024-11-28 03:36:41,634 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 5.857142857142857) internal successors, (82), 15 states have internal predecessors, (82), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-28 03:36:41,634 INFO L276 IsEmpty]: Start isEmpty. Operand 6635 states and 9571 transitions. [2024-11-28 03:36:41,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-28 03:36:41,635 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:36:41,635 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:36:41,644 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (83)] Forceful destruction successful, exit code 0 [2024-11-28 03:36:41,835 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 83 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable92 [2024-11-28 03:36:41,836 INFO L396 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 03:36:41,836 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:36:41,836 INFO L85 PathProgramCache]: Analyzing trace with hash 1649399412, now seen corresponding path program 2 times [2024-11-28 03:36:41,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:36:41,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576202850] [2024-11-28 03:36:41,836 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:36:41,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:36:41,860 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:36:41,860 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 03:36:41,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1806572203] [2024-11-28 03:36:41,862 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:36:41,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:36:41,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:36:41,867 INFO L229 MonitoredProcess]: Starting monitored process 84 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:36:41,873 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (84)] Waiting until timeout for monitored process [2024-11-28 03:36:41,947 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:36:41,947 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:36:41,948 INFO L256 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-28 03:36:41,950 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:36:42,825 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-11-28 03:36:42,825 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:36:42,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:36:42,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576202850] [2024-11-28 03:36:42,971 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:36:42,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1806572203] [2024-11-28 03:36:42,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1806572203] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:36:42,971 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:36:42,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-28 03:36:42,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452242654] [2024-11-28 03:36:42,972 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 03:36:42,972 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 03:36:42,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:36:42,973 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 03:36:42,973 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2024-11-28 03:36:42,973 INFO L87 Difference]: Start difference. First operand 6635 states and 9571 transitions. Second operand has 11 states, 10 states have (on average 8.1) internal successors, (81), 11 states have internal predecessors, (81), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-28 03:36:46,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:36:46,113 INFO L93 Difference]: Finished difference Result 6722 states and 9646 transitions. [2024-11-28 03:36:46,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 03:36:46,113 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 8.1) internal successors, (81), 11 states have internal predecessors, (81), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 135 [2024-11-28 03:36:46,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:36:46,122 INFO L225 Difference]: With dead ends: 6722 [2024-11-28 03:36:46,122 INFO L226 Difference]: Without dead ends: 6721 [2024-11-28 03:36:46,123 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2024-11-28 03:36:46,124 INFO L435 NwaCegarLoop]: 143 mSDtfsCounter, 252 mSDsluCounter, 500 mSDsCounter, 0 mSdLazyCounter, 580 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 643 SdHoareTripleChecker+Invalid, 588 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 580 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 03:36:46,124 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [268 Valid, 643 Invalid, 588 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 580 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 03:36:46,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6721 states. [2024-11-28 03:36:47,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6721 to 6646. [2024-11-28 03:36:47,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6646 states, 5778 states have (on average 1.3734856351678781) internal successors, (7936), 5820 states have internal predecessors, (7936), 823 states have call successors, (823), 2 states have call predecessors, (823), 2 states have return successors, (823), 823 states have call predecessors, (823), 823 states have call successors, (823) [2024-11-28 03:36:47,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6646 states to 6646 states and 9582 transitions. [2024-11-28 03:36:47,991 INFO L78 Accepts]: Start accepts. Automaton has 6646 states and 9582 transitions. Word has length 135 [2024-11-28 03:36:47,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:36:47,992 INFO L471 AbstractCegarLoop]: Abstraction has 6646 states and 9582 transitions. [2024-11-28 03:36:47,992 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 8.1) internal successors, (81), 11 states have internal predecessors, (81), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-28 03:36:47,992 INFO L276 IsEmpty]: Start isEmpty. Operand 6646 states and 9582 transitions. [2024-11-28 03:36:47,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-28 03:36:47,993 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:36:47,993 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:36:48,006 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (84)] Ended with exit code 0 [2024-11-28 03:36:48,193 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 84 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable93 [2024-11-28 03:36:48,194 INFO L396 AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 03:36:48,194 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:36:48,194 INFO L85 PathProgramCache]: Analyzing trace with hash -408225624, now seen corresponding path program 2 times [2024-11-28 03:36:48,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:36:48,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346976150] [2024-11-28 03:36:48,194 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:36:48,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:36:48,214 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:36:48,214 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 03:36:48,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2006882387] [2024-11-28 03:36:48,215 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:36:48,216 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:36:48,216 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:36:48,222 INFO L229 MonitoredProcess]: Starting monitored process 85 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:36:48,225 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (85)] Waiting until timeout for monitored process [2024-11-28 03:36:48,310 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:36:48,310 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:36:48,312 INFO L256 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-28 03:36:48,314 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:36:49,177 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 2 proven. 41 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-11-28 03:36:49,177 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:36:49,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:36:49,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346976150] [2024-11-28 03:36:49,444 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:36:49,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2006882387] [2024-11-28 03:36:49,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2006882387] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:36:49,444 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:36:49,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-28 03:36:49,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393414009] [2024-11-28 03:36:49,445 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 03:36:49,445 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 03:36:49,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:36:49,445 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 03:36:49,446 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2024-11-28 03:36:49,446 INFO L87 Difference]: Start difference. First operand 6646 states and 9582 transitions. Second operand has 11 states, 10 states have (on average 8.2) internal successors, (82), 11 states have internal predecessors, (82), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-28 03:36:52,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:36:52,440 INFO L93 Difference]: Finished difference Result 6698 states and 9605 transitions. [2024-11-28 03:36:52,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 03:36:52,441 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 8.2) internal successors, (82), 11 states have internal predecessors, (82), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 136 [2024-11-28 03:36:52,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:36:52,450 INFO L225 Difference]: With dead ends: 6698 [2024-11-28 03:36:52,450 INFO L226 Difference]: Without dead ends: 6697 [2024-11-28 03:36:52,451 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2024-11-28 03:36:52,451 INFO L435 NwaCegarLoop]: 173 mSDtfsCounter, 147 mSDsluCounter, 553 mSDsCounter, 0 mSdLazyCounter, 727 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 726 SdHoareTripleChecker+Invalid, 737 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 727 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:36:52,452 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 726 Invalid, 737 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 727 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 03:36:52,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6697 states. [2024-11-28 03:36:54,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6697 to 6646. [2024-11-28 03:36:54,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6646 states, 5778 states have (on average 1.3727933541017654) internal successors, (7932), 5820 states have internal predecessors, (7932), 823 states have call successors, (823), 2 states have call predecessors, (823), 2 states have return successors, (823), 823 states have call predecessors, (823), 823 states have call successors, (823) [2024-11-28 03:36:54,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6646 states to 6646 states and 9578 transitions. [2024-11-28 03:36:54,342 INFO L78 Accepts]: Start accepts. Automaton has 6646 states and 9578 transitions. Word has length 136 [2024-11-28 03:36:54,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:36:54,342 INFO L471 AbstractCegarLoop]: Abstraction has 6646 states and 9578 transitions. [2024-11-28 03:36:54,342 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 8.2) internal successors, (82), 11 states have internal predecessors, (82), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-28 03:36:54,343 INFO L276 IsEmpty]: Start isEmpty. Operand 6646 states and 9578 transitions. [2024-11-28 03:36:54,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-28 03:36:54,343 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:36:54,344 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:36:54,355 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (85)] Forceful destruction successful, exit code 0 [2024-11-28 03:36:54,544 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94,85 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:36:54,544 INFO L396 AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 03:36:54,544 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:36:54,545 INFO L85 PathProgramCache]: Analyzing trace with hash -1038341589, now seen corresponding path program 1 times [2024-11-28 03:36:54,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:36:54,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718643268] [2024-11-28 03:36:54,545 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:36:54,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:36:54,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:36:54,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2139658479] [2024-11-28 03:36:54,562 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:36:54,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:36:54,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:36:54,567 INFO L229 MonitoredProcess]: Starting monitored process 86 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:36:54,572 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (86)] Waiting until timeout for monitored process [2024-11-28 03:36:54,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:36:54,639 INFO L256 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-11-28 03:36:54,641 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:36:56,866 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2024-11-28 03:36:56,866 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:36:57,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:36:57,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718643268] [2024-11-28 03:36:57,314 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:36:57,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2139658479] [2024-11-28 03:36:57,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2139658479] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:36:57,314 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:36:57,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-11-28 03:36:57,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221178711] [2024-11-28 03:36:57,314 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 03:36:57,314 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 03:36:57,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:36:57,315 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 03:36:57,315 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2024-11-28 03:36:57,315 INFO L87 Difference]: Start difference. First operand 6646 states and 9578 transitions. Second operand has 13 states, 12 states have (on average 7.083333333333333) internal successors, (85), 13 states have internal predecessors, (85), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-28 03:37:02,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:37:02,230 INFO L93 Difference]: Finished difference Result 7191 states and 10296 transitions. [2024-11-28 03:37:02,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 03:37:02,230 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 7.083333333333333) internal successors, (85), 13 states have internal predecessors, (85), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) Word has length 136 [2024-11-28 03:37:02,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:37:02,242 INFO L225 Difference]: With dead ends: 7191 [2024-11-28 03:37:02,242 INFO L226 Difference]: Without dead ends: 7189 [2024-11-28 03:37:02,245 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=82, Invalid=380, Unknown=0, NotChecked=0, Total=462 [2024-11-28 03:37:02,245 INFO L435 NwaCegarLoop]: 108 mSDtfsCounter, 429 mSDsluCounter, 545 mSDsCounter, 0 mSdLazyCounter, 1859 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 441 SdHoareTripleChecker+Valid, 653 SdHoareTripleChecker+Invalid, 1892 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1859 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-28 03:37:02,245 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [441 Valid, 653 Invalid, 1892 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1859 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-28 03:37:02,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7189 states. [2024-11-28 03:37:04,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7189 to 6659. [2024-11-28 03:37:04,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6659 states, 5791 states have (on average 1.3721291659471593) internal successors, (7946), 5833 states have internal predecessors, (7946), 823 states have call successors, (823), 2 states have call predecessors, (823), 2 states have return successors, (823), 823 states have call predecessors, (823), 823 states have call successors, (823) [2024-11-28 03:37:04,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6659 states to 6659 states and 9592 transitions. [2024-11-28 03:37:04,153 INFO L78 Accepts]: Start accepts. Automaton has 6659 states and 9592 transitions. Word has length 136 [2024-11-28 03:37:04,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:37:04,153 INFO L471 AbstractCegarLoop]: Abstraction has 6659 states and 9592 transitions. [2024-11-28 03:37:04,153 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 7.083333333333333) internal successors, (85), 13 states have internal predecessors, (85), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-28 03:37:04,153 INFO L276 IsEmpty]: Start isEmpty. Operand 6659 states and 9592 transitions. [2024-11-28 03:37:04,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-28 03:37:04,154 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:37:04,154 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:37:04,166 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (86)] Forceful destruction successful, exit code 0 [2024-11-28 03:37:04,354 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95,86 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:37:04,355 INFO L396 AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 03:37:04,355 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:37:04,355 INFO L85 PathProgramCache]: Analyzing trace with hash -1462795670, now seen corresponding path program 2 times [2024-11-28 03:37:04,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:37:04,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654374595] [2024-11-28 03:37:04,355 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:37:04,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:37:04,379 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:37:04,379 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 03:37:04,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1111508999] [2024-11-28 03:37:04,380 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:37:04,380 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:37:04,380 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:37:04,384 INFO L229 MonitoredProcess]: Starting monitored process 87 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:37:04,386 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (87)] Waiting until timeout for monitored process [2024-11-28 03:37:04,478 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:37:04,479 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:37:04,481 INFO L256 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-28 03:37:04,483 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:37:05,827 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-11-28 03:37:05,827 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:37:06,459 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-11-28 03:37:06,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:37:06,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654374595] [2024-11-28 03:37:06,459 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:37:06,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1111508999] [2024-11-28 03:37:06,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1111508999] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:37:06,460 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 03:37:06,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 21 [2024-11-28 03:37:06,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249271662] [2024-11-28 03:37:06,460 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 03:37:06,460 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-28 03:37:06,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:37:06,461 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-28 03:37:06,461 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=360, Unknown=0, NotChecked=0, Total=462 [2024-11-28 03:37:06,461 INFO L87 Difference]: Start difference. First operand 6659 states and 9592 transitions. Second operand has 22 states, 21 states have (on average 7.571428571428571) internal successors, (159), 22 states have internal predecessors, (159), 5 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 5 states have call predecessors, (20), 5 states have call successors, (20) [2024-11-28 03:37:13,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:37:13,989 INFO L93 Difference]: Finished difference Result 8848 states and 12651 transitions. [2024-11-28 03:37:13,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-11-28 03:37:13,990 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 7.571428571428571) internal successors, (159), 22 states have internal predecessors, (159), 5 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 5 states have call predecessors, (20), 5 states have call successors, (20) Word has length 138 [2024-11-28 03:37:13,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:37:13,999 INFO L225 Difference]: With dead ends: 8848 [2024-11-28 03:37:13,999 INFO L226 Difference]: Without dead ends: 8847 [2024-11-28 03:37:14,001 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 254 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 529 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=436, Invalid=1634, Unknown=0, NotChecked=0, Total=2070 [2024-11-28 03:37:14,001 INFO L435 NwaCegarLoop]: 105 mSDtfsCounter, 1376 mSDsluCounter, 1439 mSDsCounter, 0 mSdLazyCounter, 2042 mSolverCounterSat, 173 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1384 SdHoareTripleChecker+Valid, 1544 SdHoareTripleChecker+Invalid, 2215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 173 IncrementalHoareTripleChecker+Valid, 2042 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:37:14,001 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1384 Valid, 1544 Invalid, 2215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [173 Valid, 2042 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2024-11-28 03:37:14,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8847 states. [2024-11-28 03:37:15,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8847 to 6850. [2024-11-28 03:37:15,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6850 states, 5966 states have (on average 1.3707676835400604) internal successors, (8178), 6008 states have internal predecessors, (8178), 839 states have call successors, (839), 2 states have call predecessors, (839), 2 states have return successors, (839), 839 states have call predecessors, (839), 839 states have call successors, (839) [2024-11-28 03:37:15,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6850 states to 6850 states and 9856 transitions. [2024-11-28 03:37:15,794 INFO L78 Accepts]: Start accepts. Automaton has 6850 states and 9856 transitions. Word has length 138 [2024-11-28 03:37:15,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:37:15,794 INFO L471 AbstractCegarLoop]: Abstraction has 6850 states and 9856 transitions. [2024-11-28 03:37:15,794 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 7.571428571428571) internal successors, (159), 22 states have internal predecessors, (159), 5 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 5 states have call predecessors, (20), 5 states have call successors, (20) [2024-11-28 03:37:15,794 INFO L276 IsEmpty]: Start isEmpty. Operand 6850 states and 9856 transitions. [2024-11-28 03:37:15,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-28 03:37:15,795 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:37:15,795 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:37:15,801 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (87)] Forceful destruction successful, exit code 0 [2024-11-28 03:37:15,995 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96,87 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:37:15,995 INFO L396 AbstractCegarLoop]: === Iteration 98 === Targeting ULTIMATE.startErr46ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 03:37:15,995 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:37:15,996 INFO L85 PathProgramCache]: Analyzing trace with hash -1413848499, now seen corresponding path program 1 times [2024-11-28 03:37:15,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:37:15,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181030697] [2024-11-28 03:37:15,996 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:37:15,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:37:16,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:37:16,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1691770998] [2024-11-28 03:37:16,005 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:37:16,005 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:37:16,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:37:16,007 INFO L229 MonitoredProcess]: Starting monitored process 88 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:37:16,011 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (88)] Waiting until timeout for monitored process [2024-11-28 03:37:16,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:37:16,072 INFO L256 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-28 03:37:16,073 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:37:18,953 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2024-11-28 03:37:18,953 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:37:23,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:37:23,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181030697] [2024-11-28 03:37:23,508 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:37:23,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1691770998] [2024-11-28 03:37:23,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1691770998] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:37:23,509 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:37:23,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2024-11-28 03:37:23,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091350583] [2024-11-28 03:37:23,509 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 03:37:23,509 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-28 03:37:23,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:37:23,509 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-28 03:37:23,510 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=535, Unknown=2, NotChecked=0, Total=650 [2024-11-28 03:37:23,510 INFO L87 Difference]: Start difference. First operand 6850 states and 9856 transitions. Second operand has 18 states, 17 states have (on average 5.117647058823529) internal successors, (87), 18 states have internal predecessors, (87), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-28 03:37:30,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:37:30,136 INFO L93 Difference]: Finished difference Result 7401 states and 10576 transitions. [2024-11-28 03:37:30,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-28 03:37:30,137 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 5.117647058823529) internal successors, (87), 18 states have internal predecessors, (87), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) Word has length 138 [2024-11-28 03:37:30,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:37:30,147 INFO L225 Difference]: With dead ends: 7401 [2024-11-28 03:37:30,147 INFO L226 Difference]: Without dead ends: 7399 [2024-11-28 03:37:30,149 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 230 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=262, Invalid=1218, Unknown=2, NotChecked=0, Total=1482 [2024-11-28 03:37:30,149 INFO L435 NwaCegarLoop]: 100 mSDtfsCounter, 425 mSDsluCounter, 690 mSDsCounter, 0 mSdLazyCounter, 2557 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 429 SdHoareTripleChecker+Valid, 790 SdHoareTripleChecker+Invalid, 2595 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 2557 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-11-28 03:37:30,150 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [429 Valid, 790 Invalid, 2595 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 2557 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2024-11-28 03:37:30,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7399 states. [2024-11-28 03:37:32,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7399 to 6851. [2024-11-28 03:37:32,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6851 states, 5967 states have (on average 1.370537958773253) internal successors, (8178), 6009 states have internal predecessors, (8178), 839 states have call successors, (839), 2 states have call predecessors, (839), 2 states have return successors, (839), 839 states have call predecessors, (839), 839 states have call successors, (839) [2024-11-28 03:37:32,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6851 states to 6851 states and 9856 transitions. [2024-11-28 03:37:32,034 INFO L78 Accepts]: Start accepts. Automaton has 6851 states and 9856 transitions. Word has length 138 [2024-11-28 03:37:32,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:37:32,034 INFO L471 AbstractCegarLoop]: Abstraction has 6851 states and 9856 transitions. [2024-11-28 03:37:32,035 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 5.117647058823529) internal successors, (87), 18 states have internal predecessors, (87), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-28 03:37:32,035 INFO L276 IsEmpty]: Start isEmpty. Operand 6851 states and 9856 transitions. [2024-11-28 03:37:32,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-28 03:37:32,035 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:37:32,036 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 03:37:32,043 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (88)] Forceful destruction successful, exit code 0 [2024-11-28 03:37:32,236 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97,88 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:37:32,236 INFO L396 AbstractCegarLoop]: === Iteration 99 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 03:37:32,236 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:37:32,236 INFO L85 PathProgramCache]: Analyzing trace with hash -899264971, now seen corresponding path program 1 times [2024-11-28 03:37:32,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:37:32,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006412557] [2024-11-28 03:37:32,237 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:37:32,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:37:32,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:37:32,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1950468104] [2024-11-28 03:37:32,249 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:37:32,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:37:32,249 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:37:32,253 INFO L229 MonitoredProcess]: Starting monitored process 89 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:37:32,254 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (89)] Waiting until timeout for monitored process [2024-11-28 03:37:32,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:37:32,321 INFO L256 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-28 03:37:32,323 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:37:33,083 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 1 proven. 55 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2024-11-28 03:37:33,083 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:37:33,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:37:33,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006412557] [2024-11-28 03:37:33,411 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:37:33,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1950468104] [2024-11-28 03:37:33,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1950468104] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:37:33,411 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:37:33,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-11-28 03:37:33,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098013125] [2024-11-28 03:37:33,412 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 03:37:33,412 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 03:37:33,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:37:33,412 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 03:37:33,413 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2024-11-28 03:37:33,413 INFO L87 Difference]: Start difference. First operand 6851 states and 9856 transitions. Second operand has 10 states, 9 states have (on average 8.444444444444445) internal successors, (76), 10 states have internal predecessors, (76), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-28 03:37:37,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:37:37,441 INFO L93 Difference]: Finished difference Result 10054 states and 14665 transitions. [2024-11-28 03:37:37,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-28 03:37:37,442 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.444444444444445) internal successors, (76), 10 states have internal predecessors, (76), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) Word has length 140 [2024-11-28 03:37:37,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:37:37,458 INFO L225 Difference]: With dead ends: 10054 [2024-11-28 03:37:37,458 INFO L226 Difference]: Without dead ends: 10050 [2024-11-28 03:37:37,460 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=128, Invalid=292, Unknown=0, NotChecked=0, Total=420 [2024-11-28 03:37:37,461 INFO L435 NwaCegarLoop]: 173 mSDtfsCounter, 241 mSDsluCounter, 510 mSDsCounter, 0 mSdLazyCounter, 687 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 683 SdHoareTripleChecker+Invalid, 713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 687 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:37:37,461 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [245 Valid, 683 Invalid, 713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 687 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 03:37:37,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10050 states. [2024-11-28 03:37:40,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10050 to 9881. [2024-11-28 03:37:40,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9881 states, 8597 states have (on average 1.3671048040013958) internal successors, (11753), 8639 states have internal predecessors, (11753), 1239 states have call successors, (1239), 2 states have call predecessors, (1239), 2 states have return successors, (1239), 1239 states have call predecessors, (1239), 1239 states have call successors, (1239) [2024-11-28 03:37:40,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9881 states to 9881 states and 14231 transitions. [2024-11-28 03:37:40,309 INFO L78 Accepts]: Start accepts. Automaton has 9881 states and 14231 transitions. Word has length 140 [2024-11-28 03:37:40,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:37:40,309 INFO L471 AbstractCegarLoop]: Abstraction has 9881 states and 14231 transitions. [2024-11-28 03:37:40,310 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.444444444444445) internal successors, (76), 10 states have internal predecessors, (76), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-28 03:37:40,310 INFO L276 IsEmpty]: Start isEmpty. Operand 9881 states and 14231 transitions. [2024-11-28 03:37:40,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-28 03:37:40,310 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:37:40,311 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:37:40,317 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (89)] Forceful destruction successful, exit code 0 [2024-11-28 03:37:40,511 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 89 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable98 [2024-11-28 03:37:40,511 INFO L396 AbstractCegarLoop]: === Iteration 100 === Targeting ULTIMATE.startErr47ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 03:37:40,511 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:37:40,511 INFO L85 PathProgramCache]: Analyzing trace with hash -879630322, now seen corresponding path program 1 times [2024-11-28 03:37:40,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:37:40,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217105384] [2024-11-28 03:37:40,512 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:37:40,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:37:40,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:37:40,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [200130275] [2024-11-28 03:37:40,523 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:37:40,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:37:40,523 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:37:40,525 INFO L229 MonitoredProcess]: Starting monitored process 90 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:37:40,526 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (90)] Waiting until timeout for monitored process [2024-11-28 03:37:40,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:37:40,585 INFO L256 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-28 03:37:40,586 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:37:43,787 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2024-11-28 03:37:43,787 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:37:53,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:37:53,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217105384] [2024-11-28 03:37:53,217 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:37:53,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [200130275] [2024-11-28 03:37:53,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [200130275] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:37:53,217 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:37:53,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2024-11-28 03:37:53,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498658851] [2024-11-28 03:37:53,217 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 03:37:53,218 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-28 03:37:53,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:37:53,218 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-28 03:37:53,218 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=537, Unknown=2, NotChecked=0, Total=650 [2024-11-28 03:37:53,218 INFO L87 Difference]: Start difference. First operand 9881 states and 14231 transitions. Second operand has 18 states, 17 states have (on average 5.176470588235294) internal successors, (88), 18 states have internal predecessors, (88), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-28 03:38:00,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:38:00,704 INFO L93 Difference]: Finished difference Result 10617 states and 15199 transitions. [2024-11-28 03:38:00,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-28 03:38:00,705 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 5.176470588235294) internal successors, (88), 18 states have internal predecessors, (88), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) Word has length 139 [2024-11-28 03:38:00,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:38:00,718 INFO L225 Difference]: With dead ends: 10617 [2024-11-28 03:38:00,718 INFO L226 Difference]: Without dead ends: 10615 [2024-11-28 03:38:00,719 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 212 ImplicationChecksByTransitivity, 10.3s TimeCoverageRelationStatistics Valid=267, Invalid=1291, Unknown=2, NotChecked=0, Total=1560 [2024-11-28 03:38:00,720 INFO L435 NwaCegarLoop]: 105 mSDtfsCounter, 461 mSDsluCounter, 705 mSDsCounter, 0 mSdLazyCounter, 2706 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 465 SdHoareTripleChecker+Valid, 810 SdHoareTripleChecker+Invalid, 2750 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 2706 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-11-28 03:38:00,720 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [465 Valid, 810 Invalid, 2750 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 2706 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2024-11-28 03:38:00,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10615 states. [2024-11-28 03:38:03,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10615 to 10436. [2024-11-28 03:38:03,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10436 states, 9080 states have (on average 1.3604625550660794) internal successors, (12353), 9122 states have internal predecessors, (12353), 1311 states have call successors, (1311), 2 states have call predecessors, (1311), 2 states have return successors, (1311), 1311 states have call predecessors, (1311), 1311 states have call successors, (1311) [2024-11-28 03:38:03,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10436 states to 10436 states and 14975 transitions. [2024-11-28 03:38:03,491 INFO L78 Accepts]: Start accepts. Automaton has 10436 states and 14975 transitions. Word has length 139 [2024-11-28 03:38:03,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:38:03,491 INFO L471 AbstractCegarLoop]: Abstraction has 10436 states and 14975 transitions. [2024-11-28 03:38:03,491 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 5.176470588235294) internal successors, (88), 18 states have internal predecessors, (88), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-28 03:38:03,491 INFO L276 IsEmpty]: Start isEmpty. Operand 10436 states and 14975 transitions. [2024-11-28 03:38:03,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-28 03:38:03,492 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:38:03,493 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 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 03:38:03,499 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (90)] Ended with exit code 0 [2024-11-28 03:38:03,693 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99,90 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:38:03,693 INFO L396 AbstractCegarLoop]: === Iteration 101 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 03:38:03,693 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:38:03,693 INFO L85 PathProgramCache]: Analyzing trace with hash -2107410223, now seen corresponding path program 1 times [2024-11-28 03:38:03,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:38:03,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277402658] [2024-11-28 03:38:03,694 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:38:03,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:38:03,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:38:03,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1484207911] [2024-11-28 03:38:03,704 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:38:03,704 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:38:03,704 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:38:03,706 INFO L229 MonitoredProcess]: Starting monitored process 91 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:38:03,707 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (91)] Waiting until timeout for monitored process [2024-11-28 03:38:03,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:38:03,768 INFO L256 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-28 03:38:03,769 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:38:04,750 INFO L134 CoverageAnalysis]: Checked inductivity of 262 backedges. 0 proven. 67 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2024-11-28 03:38:04,750 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:38:05,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:38:05,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277402658] [2024-11-28 03:38:05,297 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:38:05,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1484207911] [2024-11-28 03:38:05,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1484207911] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:38:05,297 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:38:05,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-11-28 03:38:05,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570482401] [2024-11-28 03:38:05,297 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 03:38:05,297 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 03:38:05,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:38:05,298 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 03:38:05,298 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2024-11-28 03:38:05,298 INFO L87 Difference]: Start difference. First operand 10436 states and 14975 transitions. Second operand has 14 states, 13 states have (on average 6.153846153846154) internal successors, (80), 14 states have internal predecessors, (80), 5 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 4 states have call predecessors, (14), 5 states have call successors, (14) [2024-11-28 03:38:09,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:38:09,866 INFO L93 Difference]: Finished difference Result 10546 states and 15099 transitions. [2024-11-28 03:38:09,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 03:38:09,866 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 6.153846153846154) internal successors, (80), 14 states have internal predecessors, (80), 5 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 4 states have call predecessors, (14), 5 states have call successors, (14) Word has length 141 [2024-11-28 03:38:09,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:38:09,879 INFO L225 Difference]: With dead ends: 10546 [2024-11-28 03:38:09,879 INFO L226 Difference]: Without dead ends: 10544 [2024-11-28 03:38:09,881 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=153, Invalid=659, Unknown=0, NotChecked=0, Total=812 [2024-11-28 03:38:09,881 INFO L435 NwaCegarLoop]: 98 mSDtfsCounter, 377 mSDsluCounter, 567 mSDsCounter, 0 mSdLazyCounter, 1141 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 381 SdHoareTripleChecker+Valid, 665 SdHoareTripleChecker+Invalid, 1176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:38:09,881 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [381 Valid, 665 Invalid, 1176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1141 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-28 03:38:09,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10544 states. [2024-11-28 03:38:12,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10544 to 10525. [2024-11-28 03:38:12,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10525 states, 9157 states have (on average 1.3583051217647701) internal successors, (12438), 9199 states have internal predecessors, (12438), 1323 states have call successors, (1323), 2 states have call predecessors, (1323), 2 states have return successors, (1323), 1323 states have call predecessors, (1323), 1323 states have call successors, (1323) [2024-11-28 03:38:12,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10525 states to 10525 states and 15084 transitions. [2024-11-28 03:38:12,684 INFO L78 Accepts]: Start accepts. Automaton has 10525 states and 15084 transitions. Word has length 141 [2024-11-28 03:38:12,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:38:12,684 INFO L471 AbstractCegarLoop]: Abstraction has 10525 states and 15084 transitions. [2024-11-28 03:38:12,684 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 6.153846153846154) internal successors, (80), 14 states have internal predecessors, (80), 5 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 4 states have call predecessors, (14), 5 states have call successors, (14) [2024-11-28 03:38:12,684 INFO L276 IsEmpty]: Start isEmpty. Operand 10525 states and 15084 transitions. [2024-11-28 03:38:12,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-28 03:38:12,685 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:38:12,685 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:38:12,691 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (91)] Ended with exit code 0 [2024-11-28 03:38:12,885 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 91 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable100 [2024-11-28 03:38:12,886 INFO L396 AbstractCegarLoop]: === Iteration 102 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 03:38:12,886 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:38:12,886 INFO L85 PathProgramCache]: Analyzing trace with hash 1748264203, now seen corresponding path program 1 times [2024-11-28 03:38:12,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:38:12,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767314685] [2024-11-28 03:38:12,886 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:38:12,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:38:12,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:38:12,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1860455766] [2024-11-28 03:38:12,902 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:38:12,902 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:38:12,902 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:38:12,904 INFO L229 MonitoredProcess]: Starting monitored process 92 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:38:12,907 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (92)] Waiting until timeout for monitored process [2024-11-28 03:38:12,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:38:12,971 INFO L256 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-28 03:38:12,972 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:38:14,500 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 3 proven. 46 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2024-11-28 03:38:14,500 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:38:15,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:38:15,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767314685] [2024-11-28 03:38:15,272 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:38:15,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1860455766] [2024-11-28 03:38:15,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1860455766] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:38:15,272 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:38:15,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2024-11-28 03:38:15,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680918429] [2024-11-28 03:38:15,272 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 03:38:15,273 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-28 03:38:15,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:38:15,273 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-28 03:38:15,273 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=392, Unknown=0, NotChecked=0, Total=462 [2024-11-28 03:38:15,273 INFO L87 Difference]: Start difference. First operand 10525 states and 15084 transitions. Second operand has 17 states, 16 states have (on average 5.5625) internal successors, (89), 16 states have internal predecessors, (89), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-28 03:38:22,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:38:22,324 INFO L93 Difference]: Finished difference Result 11260 states and 16125 transitions. [2024-11-28 03:38:22,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-28 03:38:22,325 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 5.5625) internal successors, (89), 16 states have internal predecessors, (89), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 140 [2024-11-28 03:38:22,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:38:22,337 INFO L225 Difference]: With dead ends: 11260 [2024-11-28 03:38:22,337 INFO L226 Difference]: Without dead ends: 11258 [2024-11-28 03:38:22,338 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 139 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=165, Invalid=957, Unknown=0, NotChecked=0, Total=1122 [2024-11-28 03:38:22,339 INFO L435 NwaCegarLoop]: 137 mSDtfsCounter, 566 mSDsluCounter, 1153 mSDsCounter, 0 mSdLazyCounter, 2975 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 570 SdHoareTripleChecker+Valid, 1290 SdHoareTripleChecker+Invalid, 3028 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 2975 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:38:22,339 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [570 Valid, 1290 Invalid, 3028 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 2975 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-28 03:38:22,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11258 states. [2024-11-28 03:38:25,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11258 to 11112. [2024-11-28 03:38:25,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11112 states, 9668 states have (on average 1.3593297476210178) internal successors, (13142), 9710 states have internal predecessors, (13142), 1399 states have call successors, (1399), 2 states have call predecessors, (1399), 2 states have return successors, (1399), 1399 states have call predecessors, (1399), 1399 states have call successors, (1399) [2024-11-28 03:38:25,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11112 states to 11112 states and 15940 transitions. [2024-11-28 03:38:25,236 INFO L78 Accepts]: Start accepts. Automaton has 11112 states and 15940 transitions. Word has length 140 [2024-11-28 03:38:25,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:38:25,236 INFO L471 AbstractCegarLoop]: Abstraction has 11112 states and 15940 transitions. [2024-11-28 03:38:25,236 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 5.5625) internal successors, (89), 16 states have internal predecessors, (89), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-28 03:38:25,236 INFO L276 IsEmpty]: Start isEmpty. Operand 11112 states and 15940 transitions. [2024-11-28 03:38:25,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-28 03:38:25,237 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:38:25,237 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:38:25,244 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (92)] Forceful destruction successful, exit code 0 [2024-11-28 03:38:25,437 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101,92 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:38:25,438 INFO L396 AbstractCegarLoop]: === Iteration 103 === Targeting ULTIMATE.startErr48ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 03:38:25,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:38:25,438 INFO L85 PathProgramCache]: Analyzing trace with hash -1498736017, now seen corresponding path program 1 times [2024-11-28 03:38:25,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:38:25,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409138670] [2024-11-28 03:38:25,438 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:38:25,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:38:25,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:38:25,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1122743727] [2024-11-28 03:38:25,449 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:38:25,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:38:25,449 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:38:25,451 INFO L229 MonitoredProcess]: Starting monitored process 93 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:38:25,454 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (93)] Waiting until timeout for monitored process [2024-11-28 03:38:25,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:38:25,525 INFO L256 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-28 03:38:25,526 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:38:27,167 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 26 proven. 1 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-11-28 03:38:27,167 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:38:36,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:38:36,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409138670] [2024-11-28 03:38:36,737 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:38:36,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1122743727] [2024-11-28 03:38:36,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1122743727] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:38:36,737 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:38:36,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-11-28 03:38:36,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849138902] [2024-11-28 03:38:36,737 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 03:38:36,737 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 03:38:36,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:38:36,737 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 03:38:36,738 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=349, Unknown=2, NotChecked=0, Total=420 [2024-11-28 03:38:36,738 INFO L87 Difference]: Start difference. First operand 11112 states and 15940 transitions. Second operand has 14 states, 13 states have (on average 6.615384615384615) internal successors, (86), 14 states have internal predecessors, (86), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-28 03:38:42,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:38:42,752 INFO L93 Difference]: Finished difference Result 11214 states and 16036 transitions. [2024-11-28 03:38:42,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-28 03:38:42,753 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 6.615384615384615) internal successors, (86), 14 states have internal predecessors, (86), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 140 [2024-11-28 03:38:42,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:38:42,766 INFO L225 Difference]: With dead ends: 11214 [2024-11-28 03:38:42,766 INFO L226 Difference]: Without dead ends: 11211 [2024-11-28 03:38:42,768 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 9.6s TimeCoverageRelationStatistics Valid=158, Invalid=652, Unknown=2, NotChecked=0, Total=812 [2024-11-28 03:38:42,768 INFO L435 NwaCegarLoop]: 178 mSDtfsCounter, 134 mSDsluCounter, 797 mSDsCounter, 0 mSdLazyCounter, 1884 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 975 SdHoareTripleChecker+Invalid, 1902 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1884 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:38:42,768 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 975 Invalid, 1902 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1884 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-28 03:38:42,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11211 states. [2024-11-28 03:38:45,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11211 to 10576. [2024-11-28 03:38:45,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10576 states, 9204 states have (on average 1.361038678835289) internal successors, (12527), 9246 states have internal predecessors, (12527), 1327 states have call successors, (1327), 2 states have call predecessors, (1327), 2 states have return successors, (1327), 1327 states have call predecessors, (1327), 1327 states have call successors, (1327) [2024-11-28 03:38:45,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10576 states to 10576 states and 15181 transitions. [2024-11-28 03:38:45,540 INFO L78 Accepts]: Start accepts. Automaton has 10576 states and 15181 transitions. Word has length 140 [2024-11-28 03:38:45,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:38:45,541 INFO L471 AbstractCegarLoop]: Abstraction has 10576 states and 15181 transitions. [2024-11-28 03:38:45,541 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 6.615384615384615) internal successors, (86), 14 states have internal predecessors, (86), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-28 03:38:45,541 INFO L276 IsEmpty]: Start isEmpty. Operand 10576 states and 15181 transitions. [2024-11-28 03:38:45,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-28 03:38:45,541 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:38:45,542 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 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 03:38:45,548 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (93)] Forceful destruction successful, exit code 0 [2024-11-28 03:38:45,742 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 93 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable102 [2024-11-28 03:38:45,742 INFO L396 AbstractCegarLoop]: === Iteration 104 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 03:38:45,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:38:45,742 INFO L85 PathProgramCache]: Analyzing trace with hash -905207369, now seen corresponding path program 1 times [2024-11-28 03:38:45,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:38:45,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920793257] [2024-11-28 03:38:45,743 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:38:45,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:38:45,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:38:45,911 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 1 proven. 59 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2024-11-28 03:38:45,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:38:45,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920793257] [2024-11-28 03:38:45,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920793257] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:38:45,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1849364206] [2024-11-28 03:38:45,911 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:38:45,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:38:45,912 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:38:45,915 INFO L229 MonitoredProcess]: Starting monitored process 94 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:38:45,916 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (94)] Waiting until timeout for monitored process [2024-11-28 03:38:45,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:38:45,983 INFO L256 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 03:38:45,985 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:38:46,504 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 1 proven. 59 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2024-11-28 03:38:46,504 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:38:46,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1849364206] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:38:46,587 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 03:38:46,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2024-11-28 03:38:46,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503457077] [2024-11-28 03:38:46,587 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 03:38:46,588 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 03:38:46,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:38:46,588 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 03:38:46,588 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2024-11-28 03:38:46,588 INFO L87 Difference]: Start difference. First operand 10576 states and 15181 transitions. Second operand has 13 states, 12 states have (on average 10.333333333333334) internal successors, (124), 13 states have internal predecessors, (124), 6 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 6 states have call predecessors, (20), 6 states have call successors, (20) [2024-11-28 03:38:49,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:38:49,898 INFO L93 Difference]: Finished difference Result 17000 states and 24658 transitions. [2024-11-28 03:38:49,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 03:38:49,898 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 10.333333333333334) internal successors, (124), 13 states have internal predecessors, (124), 6 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 6 states have call predecessors, (20), 6 states have call successors, (20) Word has length 142 [2024-11-28 03:38:49,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:38:49,912 INFO L225 Difference]: With dead ends: 17000 [2024-11-28 03:38:49,912 INFO L226 Difference]: Without dead ends: 7854 [2024-11-28 03:38:49,929 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=100, Invalid=362, Unknown=0, NotChecked=0, Total=462 [2024-11-28 03:38:49,929 INFO L435 NwaCegarLoop]: 168 mSDtfsCounter, 89 mSDsluCounter, 1321 mSDsCounter, 0 mSdLazyCounter, 712 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 1489 SdHoareTripleChecker+Invalid, 723 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 712 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:38:49,929 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 1489 Invalid, 723 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 712 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 03:38:49,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7854 states. [2024-11-28 03:38:51,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7854 to 7194. [2024-11-28 03:38:51,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7194 states, 6260 states have (on average 1.3637380191693291) internal successors, (8537), 6302 states have internal predecessors, (8537), 889 states have call successors, (889), 2 states have call predecessors, (889), 2 states have return successors, (889), 889 states have call predecessors, (889), 889 states have call successors, (889) [2024-11-28 03:38:51,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7194 states to 7194 states and 10315 transitions. [2024-11-28 03:38:51,907 INFO L78 Accepts]: Start accepts. Automaton has 7194 states and 10315 transitions. Word has length 142 [2024-11-28 03:38:51,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:38:51,907 INFO L471 AbstractCegarLoop]: Abstraction has 7194 states and 10315 transitions. [2024-11-28 03:38:51,907 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 10.333333333333334) internal successors, (124), 13 states have internal predecessors, (124), 6 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 6 states have call predecessors, (20), 6 states have call successors, (20) [2024-11-28 03:38:51,907 INFO L276 IsEmpty]: Start isEmpty. Operand 7194 states and 10315 transitions. [2024-11-28 03:38:51,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-28 03:38:51,908 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:38:51,908 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:38:51,914 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (94)] Forceful destruction successful, exit code 0 [2024-11-28 03:38:52,108 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 94 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable103 [2024-11-28 03:38:52,109 INFO L396 AbstractCegarLoop]: === Iteration 105 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 03:38:52,109 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:38:52,109 INFO L85 PathProgramCache]: Analyzing trace with hash -1638384386, now seen corresponding path program 2 times [2024-11-28 03:38:52,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:38:52,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064705361] [2024-11-28 03:38:52,109 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:38:52,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:38:52,125 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:38:52,125 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 03:38:52,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1248050200] [2024-11-28 03:38:52,126 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:38:52,126 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:38:52,126 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:38:52,130 INFO L229 MonitoredProcess]: Starting monitored process 95 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:38:52,131 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfcc7865-e7f2-4ce6-acdd-3ba541a35896/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (95)] Waiting until timeout for monitored process [2024-11-28 03:38:52,210 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:38:52,210 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:38:52,216 INFO L256 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 49 conjuncts are in the unsatisfiable core [2024-11-28 03:38:52,218 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:38:54,800 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 3 proven. 46 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2024-11-28 03:38:54,800 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:38:57,578 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 3 proven. 46 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2024-11-28 03:38:57,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:38:57,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064705361] [2024-11-28 03:38:57,579 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:38:57,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1248050200] [2024-11-28 03:38:57,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1248050200] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:38:57,579 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 03:38:57,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 35 [2024-11-28 03:38:57,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173104388] [2024-11-28 03:38:57,579 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 03:38:57,579 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-11-28 03:38:57,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:38:57,580 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-11-28 03:38:57,580 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=182, Invalid=1078, Unknown=0, NotChecked=0, Total=1260 [2024-11-28 03:38:57,581 INFO L87 Difference]: Start difference. First operand 7194 states and 10315 transitions. Second operand has 36 states, 35 states have (on average 4.857142857142857) internal successors, (170), 34 states have internal predecessors, (170), 7 states have call successors, (22), 1 states have call predecessors, (22), 2 states have return successors, (23), 7 states have call predecessors, (23), 7 states have call successors, (23) [2024-11-28 03:39:04,616 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-28 03:39:12,710 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-28 03:39:17,624 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-28 03:39:21,714 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-28 03:39:35,324 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-28 03:39:39,455 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-28 03:39:47,221 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-28 03:39:51,229 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-28 03:39:55,495 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-28 03:39:59,517 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-28 03:40:05,368 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-28 03:40:10,021 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1]