./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/xcsp/aim-200-2-0-sat-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4095b3b0-abb9-4fd1-acb9-403b91c48bc4/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4095b3b0-abb9-4fd1-acb9-403b91c48bc4/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_4095b3b0-abb9-4fd1-acb9-403b91c48bc4/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4095b3b0-abb9-4fd1-acb9-403b91c48bc4/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/xcsp/aim-200-2-0-sat-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4095b3b0-abb9-4fd1-acb9-403b91c48bc4/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4095b3b0-abb9-4fd1-acb9-403b91c48bc4/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b19e4ee0ed3c6e10c485998fdfeddd37921a5f2549a0e290e64d8b341ccd2511 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:57:07,276 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:57:07,398 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4095b3b0-abb9-4fd1-acb9-403b91c48bc4/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 04:57:07,408 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:57:07,409 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:57:07,436 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:57:07,436 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:57:07,437 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:57:07,437 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:57:07,437 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:57:07,437 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:57:07,438 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:57:07,438 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:57:07,438 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:57:07,439 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:57:07,439 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:57:07,439 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 04:57:07,439 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 04:57:07,439 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:57:07,440 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 04:57:07,440 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:57:07,440 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 04:57:07,440 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:57:07,440 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 04:57:07,440 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 04:57:07,440 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 04:57:07,441 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:57:07,441 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:57:07,441 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:57:07,441 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:57:07,441 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:57:07,441 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:57:07,442 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:57:07,442 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:57:07,442 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:57:07,442 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:57:07,442 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:57:07,442 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:57:07,442 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:57:07,442 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:57:07,443 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 04:57:07,443 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 04:57:07,443 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 04:57:07,443 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 04:57:07,443 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:57:07,443 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:57:07,444 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:57:07,444 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:57:07,444 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_4095b3b0-abb9-4fd1-acb9-403b91c48bc4/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 ! call(reach_error())) ) 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 -> b19e4ee0ed3c6e10c485998fdfeddd37921a5f2549a0e290e64d8b341ccd2511 [2024-11-28 04:57:07,822 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:57:07,837 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:57:07,840 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:57:07,842 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:57:07,843 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:57:07,844 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4095b3b0-abb9-4fd1-acb9-403b91c48bc4/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/xcsp/aim-200-2-0-sat-1.c [2024-11-28 04:57:11,221 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4095b3b0-abb9-4fd1-acb9-403b91c48bc4/bin/uautomizer-verify-aQ6SnzHsRB/data/3b821aaf1/e5a61dfb4b634d1881dd0bb605ba5d62/FLAGa7a0405e6 [2024-11-28 04:57:11,574 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:57:11,575 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4095b3b0-abb9-4fd1-acb9-403b91c48bc4/sv-benchmarks/c/xcsp/aim-200-2-0-sat-1.c [2024-11-28 04:57:11,595 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4095b3b0-abb9-4fd1-acb9-403b91c48bc4/bin/uautomizer-verify-aQ6SnzHsRB/data/3b821aaf1/e5a61dfb4b634d1881dd0bb605ba5d62/FLAGa7a0405e6 [2024-11-28 04:57:11,628 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4095b3b0-abb9-4fd1-acb9-403b91c48bc4/bin/uautomizer-verify-aQ6SnzHsRB/data/3b821aaf1/e5a61dfb4b634d1881dd0bb605ba5d62 [2024-11-28 04:57:11,630 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:57:11,632 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:57:11,635 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:57:11,636 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:57:11,641 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:57:11,642 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:57:11" (1/1) ... [2024-11-28 04:57:11,645 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76c53d0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:57:11, skipping insertion in model container [2024-11-28 04:57:11,645 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:57:11" (1/1) ... [2024-11-28 04:57:11,708 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:57:12,418 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4095b3b0-abb9-4fd1-acb9-403b91c48bc4/sv-benchmarks/c/xcsp/aim-200-2-0-sat-1.c[42704,42717] [2024-11-28 04:57:12,472 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:57:12,487 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:57:12,795 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4095b3b0-abb9-4fd1-acb9-403b91c48bc4/sv-benchmarks/c/xcsp/aim-200-2-0-sat-1.c[42704,42717] [2024-11-28 04:57:12,820 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:57:12,837 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:57:12,838 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:57:12 WrapperNode [2024-11-28 04:57:12,838 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:57:12,839 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:57:12,839 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:57:12,839 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:57:12,847 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:57:12" (1/1) ... [2024-11-28 04:57:12,900 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:57:12" (1/1) ... [2024-11-28 04:57:13,503 INFO L138 Inliner]: procedures = 13, calls = 793, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 8234 [2024-11-28 04:57:13,505 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:57:13,506 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:57:13,506 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:57:13,506 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:57:13,538 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:57:12" (1/1) ... [2024-11-28 04:57:13,539 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:57:12" (1/1) ... [2024-11-28 04:57:13,743 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:57:12" (1/1) ... [2024-11-28 04:57:13,936 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-28 04:57:13,936 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:57:12" (1/1) ... [2024-11-28 04:57:13,937 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:57:12" (1/1) ... [2024-11-28 04:57:14,177 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:57:12" (1/1) ... [2024-11-28 04:57:14,200 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:57:12" (1/1) ... [2024-11-28 04:57:14,275 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:57:12" (1/1) ... [2024-11-28 04:57:14,314 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:57:12" (1/1) ... [2024-11-28 04:57:14,347 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:57:12" (1/1) ... [2024-11-28 04:57:14,428 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:57:14,430 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:57:14,430 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:57:14,431 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:57:14,432 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:57:12" (1/1) ... [2024-11-28 04:57:14,443 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:57:14,459 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4095b3b0-abb9-4fd1-acb9-403b91c48bc4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:57:14,477 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4095b3b0-abb9-4fd1-acb9-403b91c48bc4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 04:57:14,483 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4095b3b0-abb9-4fd1-acb9-403b91c48bc4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 04:57:14,515 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:57:14,515 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:57:14,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:57:14,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 04:57:14,516 INFO L130 BoogieDeclarations]: Found specification of procedure assume [2024-11-28 04:57:14,516 INFO L138 BoogieDeclarations]: Found implementation of procedure assume [2024-11-28 04:57:14,958 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:57:14,960 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:57:35,573 INFO L? ?]: Removed 1859 outVars from TransFormulas that were not future-live. [2024-11-28 04:57:35,575 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:57:35,745 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:57:35,749 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-28 04:57:35,750 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:57:35 BoogieIcfgContainer [2024-11-28 04:57:35,751 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:57:35,755 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 04:57:35,755 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 04:57:35,761 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 04:57:35,761 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:57:11" (1/3) ... [2024-11-28 04:57:35,763 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36dcaa3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:57:35, skipping insertion in model container [2024-11-28 04:57:35,763 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:57:12" (2/3) ... [2024-11-28 04:57:35,764 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36dcaa3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:57:35, skipping insertion in model container [2024-11-28 04:57:35,765 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:57:35" (3/3) ... [2024-11-28 04:57:35,767 INFO L128 eAbstractionObserver]: Analyzing ICFG aim-200-2-0-sat-1.c [2024-11-28 04:57:35,789 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 04:57:35,792 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aim-200-2-0-sat-1.c that has 2 procedures, 3795 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-11-28 04:57:36,086 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:57:36,116 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;@7bdc0669, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:57:36,120 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 04:57:36,169 INFO L276 IsEmpty]: Start isEmpty. Operand has 3795 states, 3006 states have (on average 1.5355954757152361) internal successors, (4616), 3007 states have internal predecessors, (4616), 786 states have call successors, (786), 1 states have call predecessors, (786), 1 states have return successors, (786), 786 states have call predecessors, (786), 786 states have call successors, (786) [2024-11-28 04:57:36,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5324 [2024-11-28 04:57:36,672 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:57:36,675 INFO L218 NwaCegarLoop]: trace histogram [786, 786, 786, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:57:36,677 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:57:36,689 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:57:36,692 INFO L85 PathProgramCache]: Analyzing trace with hash -1766399264, now seen corresponding path program 1 times [2024-11-28 04:57:36,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:57:36,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304274993] [2024-11-28 04:57:36,701 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:57:36,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:57:37,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:57:46,006 INFO L134 CoverageAnalysis]: Checked inductivity of 1234020 backedges. 0 proven. 1570 refuted. 0 times theorem prover too weak. 1232450 trivial. 0 not checked. [2024-11-28 04:57:46,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:57:46,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304274993] [2024-11-28 04:57:46,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304274993] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:57:46,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1045437667] [2024-11-28 04:57:46,010 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:57:46,010 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:57:46,011 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4095b3b0-abb9-4fd1-acb9-403b91c48bc4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:57:46,016 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4095b3b0-abb9-4fd1-acb9-403b91c48bc4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:57:46,019 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4095b3b0-abb9-4fd1-acb9-403b91c48bc4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 04:57:48,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:57:48,798 INFO L256 TraceCheckSpWp]: Trace formula consists of 10298 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 04:57:48,996 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:57:49,701 INFO L134 CoverageAnalysis]: Checked inductivity of 1234020 backedges. 1570 proven. 0 refuted. 0 times theorem prover too weak. 1232450 trivial. 0 not checked. [2024-11-28 04:57:49,702 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:57:49,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1045437667] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:57:49,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:57:49,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-28 04:57:49,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570284461] [2024-11-28 04:57:49,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:57:49,727 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 04:57:49,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:57:49,765 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 04:57:49,766 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 04:57:49,780 INFO L87 Difference]: Start difference. First operand has 3795 states, 3006 states have (on average 1.5355954757152361) internal successors, (4616), 3007 states have internal predecessors, (4616), 786 states have call successors, (786), 1 states have call predecessors, (786), 1 states have return successors, (786), 786 states have call predecessors, (786), 786 states have call successors, (786) Second operand has 2 states, 2 states have (on average 699.0) internal successors, (1398), 2 states have internal predecessors, (1398), 2 states have call successors, (786), 2 states have call predecessors, (786), 1 states have return successors, (786), 1 states have call predecessors, (786), 2 states have call successors, (786) [2024-11-28 04:57:50,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:57:50,292 INFO L93 Difference]: Finished difference Result 7584 states and 13156 transitions. [2024-11-28 04:57:50,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 04:57:50,299 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 699.0) internal successors, (1398), 2 states have internal predecessors, (1398), 2 states have call successors, (786), 2 states have call predecessors, (786), 1 states have return successors, (786), 1 states have call predecessors, (786), 2 states have call successors, (786) Word has length 5323 [2024-11-28 04:57:50,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:57:50,354 INFO L225 Difference]: With dead ends: 7584 [2024-11-28 04:57:50,354 INFO L226 Difference]: Without dead ends: 3792 [2024-11-28 04:57:50,378 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5324 GetRequests, 5324 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 04:57:50,381 INFO L435 NwaCegarLoop]: 6184 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, 6184 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:57:50,382 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6184 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:57:50,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3792 states. [2024-11-28 04:57:51,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3792 to 3792. [2024-11-28 04:57:51,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3792 states, 3004 states have (on average 1.5352862849533955) internal successors, (4612), 3004 states have internal predecessors, (4612), 786 states have call successors, (786), 1 states have call predecessors, (786), 1 states have return successors, (786), 786 states have call predecessors, (786), 786 states have call successors, (786) [2024-11-28 04:57:51,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3792 states to 3792 states and 6184 transitions. [2024-11-28 04:57:51,362 INFO L78 Accepts]: Start accepts. Automaton has 3792 states and 6184 transitions. Word has length 5323 [2024-11-28 04:57:51,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:57:51,367 INFO L471 AbstractCegarLoop]: Abstraction has 3792 states and 6184 transitions. [2024-11-28 04:57:51,369 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 699.0) internal successors, (1398), 2 states have internal predecessors, (1398), 2 states have call successors, (786), 2 states have call predecessors, (786), 1 states have return successors, (786), 1 states have call predecessors, (786), 2 states have call successors, (786) [2024-11-28 04:57:51,370 INFO L276 IsEmpty]: Start isEmpty. Operand 3792 states and 6184 transitions. [2024-11-28 04:57:51,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5324 [2024-11-28 04:57:51,915 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:57:51,917 INFO L218 NwaCegarLoop]: trace histogram [786, 786, 786, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:57:51,937 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4095b3b0-abb9-4fd1-acb9-403b91c48bc4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 04:57:52,119 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4095b3b0-abb9-4fd1-acb9-403b91c48bc4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-28 04:57:52,119 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:57:52,122 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:57:52,125 INFO L85 PathProgramCache]: Analyzing trace with hash 887765772, now seen corresponding path program 1 times [2024-11-28 04:57:52,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:57:52,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388119586] [2024-11-28 04:57:52,127 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:57:52,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:57:56,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:59:38,228 INFO L134 CoverageAnalysis]: Checked inductivity of 1234020 backedges. 2952 proven. 20328 refuted. 0 times theorem prover too weak. 1210740 trivial. 0 not checked. [2024-11-28 04:59:38,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:59:38,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388119586] [2024-11-28 04:59:38,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [388119586] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:59:38,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1916074216] [2024-11-28 04:59:38,232 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:59:38,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:59:38,232 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4095b3b0-abb9-4fd1-acb9-403b91c48bc4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:59:38,238 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4095b3b0-abb9-4fd1-acb9-403b91c48bc4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:59:38,239 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4095b3b0-abb9-4fd1-acb9-403b91c48bc4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 04:59:40,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:59:40,933 INFO L256 TraceCheckSpWp]: Trace formula consists of 10298 conjuncts, 56 conjuncts are in the unsatisfiable core [2024-11-28 04:59:41,033 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:00:27,737 INFO L134 CoverageAnalysis]: Checked inductivity of 1234020 backedges. 148544 proven. 17718 refuted. 0 times theorem prover too weak. 1067758 trivial. 0 not checked. [2024-11-28 05:00:27,737 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:01:32,847 INFO L134 CoverageAnalysis]: Checked inductivity of 1234020 backedges. 4092 proven. 19188 refuted. 0 times theorem prover too weak. 1210740 trivial. 0 not checked. [2024-11-28 05:01:32,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1916074216] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:01:32,848 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 05:01:32,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 19, 19] total 50 [2024-11-28 05:01:32,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566470710] [2024-11-28 05:01:32,851 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 05:01:32,867 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2024-11-28 05:01:32,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:01:32,877 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2024-11-28 05:01:32,878 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=308, Invalid=2142, Unknown=0, NotChecked=0, Total=2450 [2024-11-28 05:01:32,885 INFO L87 Difference]: Start difference. First operand 3792 states and 6184 transitions. Second operand has 50 states, 33 states have (on average 115.66666666666667) internal successors, (3817), 36 states have internal predecessors, (3817), 47 states have call successors, (2233), 2 states have call predecessors, (2233), 3 states have return successors, (2235), 44 states have call predecessors, (2235), 47 states have call successors, (2235) [2024-11-28 05:03:34,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:03:34,478 INFO L93 Difference]: Finished difference Result 70400 states and 114553 transitions. [2024-11-28 05:03:34,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 151 states. [2024-11-28 05:03:34,482 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 33 states have (on average 115.66666666666667) internal successors, (3817), 36 states have internal predecessors, (3817), 47 states have call successors, (2233), 2 states have call predecessors, (2233), 3 states have return successors, (2235), 44 states have call predecessors, (2235), 47 states have call successors, (2235) Word has length 5323 [2024-11-28 05:03:34,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:03:34,782 INFO L225 Difference]: With dead ends: 70400 [2024-11-28 05:03:34,783 INFO L226 Difference]: Without dead ends: 68324 [2024-11-28 05:03:34,821 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10828 GetRequests, 10639 SyntacticMatches, 6 SemanticMatches, 183 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10489 ImplicationChecksByTransitivity, 15.9s TimeCoverageRelationStatistics Valid=8208, Invalid=25832, Unknown=0, NotChecked=0, Total=34040 [2024-11-28 05:03:34,823 INFO L435 NwaCegarLoop]: 21349 mSDtfsCounter, 276447 mSDsluCounter, 222532 mSDsCounter, 0 mSdLazyCounter, 37684 mSolverCounterSat, 24397 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 67.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 276500 SdHoareTripleChecker+Valid, 243881 SdHoareTripleChecker+Invalid, 62081 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.0s SdHoareTripleChecker+Time, 24397 IncrementalHoareTripleChecker+Valid, 37684 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 74.0s IncrementalHoareTripleChecker+Time [2024-11-28 05:03:34,823 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [276500 Valid, 243881 Invalid, 62081 Unknown, 0 Unchecked, 1.0s Time], IncrementalHoareTripleChecker [24397 Valid, 37684 Invalid, 0 Unknown, 0 Unchecked, 74.0s Time] [2024-11-28 05:03:34,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68324 states. [2024-11-28 05:03:42,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68324 to 30499. [2024-11-28 05:03:42,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30499 states, 26380 states have (on average 1.5674374526156178) internal successors, (41349), 26380 states have internal predecessors, (41349), 4117 states have call successors, (4117), 1 states have call predecessors, (4117), 1 states have return successors, (4117), 4117 states have call predecessors, (4117), 4117 states have call successors, (4117) [2024-11-28 05:03:43,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30499 states to 30499 states and 49583 transitions. [2024-11-28 05:03:43,050 INFO L78 Accepts]: Start accepts. Automaton has 30499 states and 49583 transitions. Word has length 5323 [2024-11-28 05:03:43,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:03:43,068 INFO L471 AbstractCegarLoop]: Abstraction has 30499 states and 49583 transitions. [2024-11-28 05:03:43,072 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 33 states have (on average 115.66666666666667) internal successors, (3817), 36 states have internal predecessors, (3817), 47 states have call successors, (2233), 2 states have call predecessors, (2233), 3 states have return successors, (2235), 44 states have call predecessors, (2235), 47 states have call successors, (2235) [2024-11-28 05:03:43,072 INFO L276 IsEmpty]: Start isEmpty. Operand 30499 states and 49583 transitions. [2024-11-28 05:03:43,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5326 [2024-11-28 05:03:43,479 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:03:43,481 INFO L218 NwaCegarLoop]: trace histogram [786, 786, 786, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:03:43,509 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4095b3b0-abb9-4fd1-acb9-403b91c48bc4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 05:03:43,681 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4095b3b0-abb9-4fd1-acb9-403b91c48bc4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:03:43,682 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:03:43,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:03:43,686 INFO L85 PathProgramCache]: Analyzing trace with hash 330579474, now seen corresponding path program 1 times [2024-11-28 05:03:43,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:03:43,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852130123] [2024-11-28 05:03:43,691 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:03:43,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:03:46,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:04:25,037 INFO L134 CoverageAnalysis]: Checked inductivity of 1234020 backedges. 1704 proven. 7680 refuted. 0 times theorem prover too weak. 1224636 trivial. 0 not checked. [2024-11-28 05:04:25,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:04:25,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852130123] [2024-11-28 05:04:25,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852130123] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:04:25,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [29230379] [2024-11-28 05:04:25,038 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:04:25,039 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:04:25,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4095b3b0-abb9-4fd1-acb9-403b91c48bc4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:04:25,041 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4095b3b0-abb9-4fd1-acb9-403b91c48bc4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:04:25,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4095b3b0-abb9-4fd1-acb9-403b91c48bc4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 05:04:27,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:04:27,172 INFO L256 TraceCheckSpWp]: Trace formula consists of 10304 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-11-28 05:04:27,261 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:04:53,138 INFO L134 CoverageAnalysis]: Checked inductivity of 1234020 backedges. 252216 proven. 10764 refuted. 0 times theorem prover too weak. 971040 trivial. 0 not checked. [2024-11-28 05:04:53,138 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:05:28,342 INFO L134 CoverageAnalysis]: Checked inductivity of 1234020 backedges. 1656 proven. 12384 refuted. 0 times theorem prover too weak. 1219980 trivial. 0 not checked. [2024-11-28 05:05:28,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [29230379] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:05:28,343 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 05:05:28,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 14, 14] total 27 [2024-11-28 05:05:28,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82819655] [2024-11-28 05:05:28,344 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 05:05:28,370 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-28 05:05:28,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:05:28,396 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-28 05:05:28,397 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=547, Unknown=0, NotChecked=0, Total=702 [2024-11-28 05:05:28,405 INFO L87 Difference]: Start difference. First operand 30499 states and 49583 transitions. Second operand has 27 states, 21 states have (on average 174.42857142857142) internal successors, (3663), 21 states have internal predecessors, (3663), 23 states have call successors, (2215), 2 states have call predecessors, (2215), 3 states have return successors, (2217), 23 states have call predecessors, (2217), 23 states have call successors, (2217) [2024-11-28 05:05:57,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:05:57,356 INFO L93 Difference]: Finished difference Result 122546 states and 199230 transitions. [2024-11-28 05:05:57,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-11-28 05:05:57,361 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 21 states have (on average 174.42857142857142) internal successors, (3663), 21 states have internal predecessors, (3663), 23 states have call successors, (2215), 2 states have call predecessors, (2215), 3 states have return successors, (2217), 23 states have call predecessors, (2217), 23 states have call successors, (2217) Word has length 5325 [2024-11-28 05:05:57,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:05:57,846 INFO L225 Difference]: With dead ends: 122546 [2024-11-28 05:05:57,846 INFO L226 Difference]: Without dead ends: 98448 [2024-11-28 05:05:57,925 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10690 GetRequests, 10640 SyntacticMatches, 5 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 438 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=646, Invalid=1516, Unknown=0, NotChecked=0, Total=2162 [2024-11-28 05:05:57,928 INFO L435 NwaCegarLoop]: 9513 mSDtfsCounter, 43479 mSDsluCounter, 82644 mSDsCounter, 0 mSdLazyCounter, 15830 mSolverCounterSat, 2807 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43546 SdHoareTripleChecker+Valid, 92157 SdHoareTripleChecker+Invalid, 18637 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.4s SdHoareTripleChecker+Time, 2807 IncrementalHoareTripleChecker+Valid, 15830 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.9s IncrementalHoareTripleChecker+Time [2024-11-28 05:05:57,931 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [43546 Valid, 92157 Invalid, 18637 Unknown, 0 Unchecked, 0.4s Time], IncrementalHoareTripleChecker [2807 Valid, 15830 Invalid, 0 Unknown, 0 Unchecked, 18.9s Time] [2024-11-28 05:05:58,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98448 states. [2024-11-28 05:06:15,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98448 to 92944. [2024-11-28 05:06:15,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92944 states, 80977 states have (on average 1.569779073070131) internal successors, (127116), 80977 states have internal predecessors, (127116), 11965 states have call successors, (11965), 1 states have call predecessors, (11965), 1 states have return successors, (11965), 11965 states have call predecessors, (11965), 11965 states have call successors, (11965) [2024-11-28 05:06:16,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92944 states to 92944 states and 151046 transitions. [2024-11-28 05:06:16,137 INFO L78 Accepts]: Start accepts. Automaton has 92944 states and 151046 transitions. Word has length 5325 [2024-11-28 05:06:16,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:06:16,148 INFO L471 AbstractCegarLoop]: Abstraction has 92944 states and 151046 transitions. [2024-11-28 05:06:16,150 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 21 states have (on average 174.42857142857142) internal successors, (3663), 21 states have internal predecessors, (3663), 23 states have call successors, (2215), 2 states have call predecessors, (2215), 3 states have return successors, (2217), 23 states have call predecessors, (2217), 23 states have call successors, (2217) [2024-11-28 05:06:16,150 INFO L276 IsEmpty]: Start isEmpty. Operand 92944 states and 151046 transitions. [2024-11-28 05:06:18,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5326 [2024-11-28 05:06:18,299 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:06:18,307 INFO L218 NwaCegarLoop]: trace histogram [786, 786, 786, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:06:18,346 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4095b3b0-abb9-4fd1-acb9-403b91c48bc4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-28 05:06:18,511 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4095b3b0-abb9-4fd1-acb9-403b91c48bc4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:06:18,512 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:06:18,516 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:06:18,525 INFO L85 PathProgramCache]: Analyzing trace with hash -225967684, now seen corresponding path program 1 times [2024-11-28 05:06:18,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:06:18,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032140069] [2024-11-28 05:06:18,533 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:06:18,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:06:28,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:08:17,278 INFO L134 CoverageAnalysis]: Checked inductivity of 1234020 backedges. 1788 proven. 12252 refuted. 0 times theorem prover too weak. 1219980 trivial. 0 not checked. [2024-11-28 05:08:17,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:08:17,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032140069] [2024-11-28 05:08:17,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1032140069] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:08:17,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [320378215] [2024-11-28 05:08:17,280 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:08:17,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:08:17,281 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4095b3b0-abb9-4fd1-acb9-403b91c48bc4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:08:17,285 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4095b3b0-abb9-4fd1-acb9-403b91c48bc4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:08:17,287 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4095b3b0-abb9-4fd1-acb9-403b91c48bc4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 05:08:19,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:08:19,918 INFO L256 TraceCheckSpWp]: Trace formula consists of 10304 conjuncts, 45 conjuncts are in the unsatisfiable core [2024-11-28 05:08:20,038 INFO L279 TraceCheckSpWp]: Computing forward predicates...