./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/chl-poker-hand-symm.wvr.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_6a7cc66f-8058-4bc5-870a-90fa268a5000/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a7cc66f-8058-4bc5-870a-90fa268a5000/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_6a7cc66f-8058-4bc5-870a-90fa268a5000/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a7cc66f-8058-4bc5-870a-90fa268a5000/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-poker-hand-symm.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a7cc66f-8058-4bc5-870a-90fa268a5000/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_6a7cc66f-8058-4bc5-870a-90fa268a5000/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 6f8a234fc2a7dd634bd03f872a0d7e8707283ecf0f996c6ed729f53ab07d6660 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 19:50:27,917 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 19:50:28,015 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a7cc66f-8058-4bc5-870a-90fa268a5000/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-27 19:50:28,025 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 19:50:28,025 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 19:50:28,063 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 19:50:28,064 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 19:50:28,064 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 19:50:28,065 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 19:50:28,065 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 19:50:28,066 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 19:50:28,066 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 19:50:28,067 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 19:50:28,067 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 19:50:28,067 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 19:50:28,067 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 19:50:28,067 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 19:50:28,067 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 19:50:28,067 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 19:50:28,067 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 19:50:28,067 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 19:50:28,067 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 19:50:28,068 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 19:50:28,068 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 19:50:28,068 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-27 19:50:28,068 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-27 19:50:28,068 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 19:50:28,068 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 19:50:28,068 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 19:50:28,068 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 19:50:28,068 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 19:50:28,068 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 19:50:28,068 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 19:50:28,069 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 19:50:28,069 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 19:50:28,069 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 19:50:28,069 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 19:50:28,069 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 19:50:28,069 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 19:50:28,069 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 19:50:28,069 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 19:50:28,069 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 19:50:28,069 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 19:50:28,069 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 19:50:28,069 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 19:50:28,069 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 19:50:28,070 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 19:50:28,071 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 19:50:28,071 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 19:50:28,071 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 19:50:28,071 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_6a7cc66f-8058-4bc5-870a-90fa268a5000/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 -> 6f8a234fc2a7dd634bd03f872a0d7e8707283ecf0f996c6ed729f53ab07d6660 [2024-11-27 19:50:28,405 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 19:50:28,418 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 19:50:28,422 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 19:50:28,423 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 19:50:28,424 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 19:50:28,425 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a7cc66f-8058-4bc5-870a-90fa268a5000/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/weaver/chl-poker-hand-symm.wvr.c [2024-11-27 19:50:31,384 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a7cc66f-8058-4bc5-870a-90fa268a5000/bin/uautomizer-verify-aQ6SnzHsRB/data/4376361ff/bd41bc0d9fba49e49d5f8a1aca0aa2f1/FLAG43a73598b [2024-11-27 19:50:31,660 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 19:50:31,660 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a7cc66f-8058-4bc5-870a-90fa268a5000/sv-benchmarks/c/weaver/chl-poker-hand-symm.wvr.c [2024-11-27 19:50:31,674 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a7cc66f-8058-4bc5-870a-90fa268a5000/bin/uautomizer-verify-aQ6SnzHsRB/data/4376361ff/bd41bc0d9fba49e49d5f8a1aca0aa2f1/FLAG43a73598b [2024-11-27 19:50:31,955 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a7cc66f-8058-4bc5-870a-90fa268a5000/bin/uautomizer-verify-aQ6SnzHsRB/data/4376361ff/bd41bc0d9fba49e49d5f8a1aca0aa2f1 [2024-11-27 19:50:31,957 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 19:50:31,959 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 19:50:31,961 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 19:50:31,961 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 19:50:31,965 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 19:50:31,966 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 07:50:31" (1/1) ... [2024-11-27 19:50:31,967 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79b89ff7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:31, skipping insertion in model container [2024-11-27 19:50:31,967 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 07:50:31" (1/1) ... [2024-11-27 19:50:32,000 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 19:50:32,365 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 19:50:32,383 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 19:50:32,495 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 19:50:32,518 INFO L204 MainTranslator]: Completed translation [2024-11-27 19:50:32,518 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:32 WrapperNode [2024-11-27 19:50:32,518 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 19:50:32,519 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 19:50:32,519 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 19:50:32,519 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 19:50:32,526 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:32" (1/1) ... [2024-11-27 19:50:32,556 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:32" (1/1) ... [2024-11-27 19:50:32,673 INFO L138 Inliner]: procedures = 24, calls = 298, calls flagged for inlining = 70, calls inlined = 98, statements flattened = 1683 [2024-11-27 19:50:32,673 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 19:50:32,674 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 19:50:32,674 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 19:50:32,674 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 19:50:32,684 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:32" (1/1) ... [2024-11-27 19:50:32,685 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:32" (1/1) ... [2024-11-27 19:50:32,705 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:32" (1/1) ... [2024-11-27 19:50:32,766 INFO L175 MemorySlicer]: Split 186 memory accesses to 2 slices as follows [2, 184]. 99 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 8 writes are split as follows [0, 8]. [2024-11-27 19:50:32,766 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:32" (1/1) ... [2024-11-27 19:50:32,766 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:32" (1/1) ... [2024-11-27 19:50:32,824 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:32" (1/1) ... [2024-11-27 19:50:32,826 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:32" (1/1) ... [2024-11-27 19:50:32,848 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:32" (1/1) ... [2024-11-27 19:50:32,855 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:32" (1/1) ... [2024-11-27 19:50:32,863 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:32" (1/1) ... [2024-11-27 19:50:32,882 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 19:50:32,883 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 19:50:32,886 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 19:50:32,886 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 19:50:32,887 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:32" (1/1) ... [2024-11-27 19:50:32,896 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 19:50:32,911 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a7cc66f-8058-4bc5-870a-90fa268a5000/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:50:32,925 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a7cc66f-8058-4bc5-870a-90fa268a5000/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 19:50:32,931 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a7cc66f-8058-4bc5-870a-90fa268a5000/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 19:50:32,965 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 19:50:32,966 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-27 19:50:32,966 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-27 19:50:32,966 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-27 19:50:32,966 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-27 19:50:32,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 19:50:32,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-27 19:50:32,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-27 19:50:32,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-27 19:50:32,966 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-27 19:50:32,966 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-27 19:50:32,966 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-27 19:50:32,967 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 19:50:32,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 19:50:32,967 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-27 19:50:32,967 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-27 19:50:32,977 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-27 19:50:33,178 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 19:50:33,180 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 19:50:35,612 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-27 19:50:35,612 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 19:50:38,779 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 19:50:38,780 INFO L312 CfgBuilder]: Removed 12 assume(true) statements. [2024-11-27 19:50:38,780 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 07:50:38 BoogieIcfgContainer [2024-11-27 19:50:38,780 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 19:50:38,782 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 19:50:38,784 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 19:50:38,790 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 19:50:38,790 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 07:50:31" (1/3) ... [2024-11-27 19:50:38,791 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@415d1ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 07:50:38, skipping insertion in model container [2024-11-27 19:50:38,791 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:32" (2/3) ... [2024-11-27 19:50:38,792 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@415d1ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 07:50:38, skipping insertion in model container [2024-11-27 19:50:38,792 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 07:50:38" (3/3) ... [2024-11-27 19:50:38,794 INFO L128 eAbstractionObserver]: Analyzing ICFG chl-poker-hand-symm.wvr.c [2024-11-27 19:50:38,812 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 19:50:38,814 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG chl-poker-hand-symm.wvr.c that has 3 procedures, 152 locations, 1 initial locations, 12 loop locations, and 70 error locations. [2024-11-27 19:50:38,815 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-27 19:50:39,608 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-27 19:50:39,656 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 158 places, 179 transitions, 372 flow [2024-11-27 19:50:39,811 INFO L124 PetriNetUnfolderBase]: 28/177 cut-off events. [2024-11-27 19:50:39,814 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-27 19:50:39,821 INFO L83 FinitePrefix]: Finished finitePrefix Result has 186 conditions, 177 events. 28/177 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 836 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 123. Up to 7 conditions per place. [2024-11-27 19:50:39,821 INFO L82 GeneralOperation]: Start removeDead. Operand has 158 places, 179 transitions, 372 flow [2024-11-27 19:50:39,834 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 155 places, 176 transitions, 364 flow [2024-11-27 19:50:39,847 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 19:50:39,865 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;@82621fb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 19:50:39,865 INFO L334 AbstractCegarLoop]: Starting to check reachability of 124 error locations. [2024-11-27 19:50:39,870 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-27 19:50:39,870 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2024-11-27 19:50:39,870 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-27 19:50:39,870 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 19:50:39,871 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-27 19:50:39,871 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2024-11-27 19:50:39,877 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:50:39,877 INFO L85 PathProgramCache]: Analyzing trace with hash 5553065, now seen corresponding path program 1 times [2024-11-27 19:50:39,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:50:39,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781556605] [2024-11-27 19:50:39,886 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:50:39,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:50:40,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:50:40,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 19:50:40,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:50:40,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781556605] [2024-11-27 19:50:40,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781556605] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:50:40,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:50:40,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 19:50:40,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902524921] [2024-11-27 19:50:40,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:50:40,315 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 19:50:40,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:50:40,351 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 19:50:40,352 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 19:50:40,433 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 179 [2024-11-27 19:50:40,436 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 176 transitions, 364 flow. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:50:40,437 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 19:50:40,437 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 179 [2024-11-27 19:50:40,440 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 19:50:45,015 INFO L124 PetriNetUnfolderBase]: 6344/9864 cut-off events. [2024-11-27 19:50:45,015 INFO L125 PetriNetUnfolderBase]: For 155/155 co-relation queries the response was YES. [2024-11-27 19:50:45,031 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19849 conditions, 9864 events. 6344/9864 cut-off events. For 155/155 co-relation queries the response was YES. Maximal size of possible extension queue 526. Compared 60290 event pairs, 5000 based on Foata normal form. 10/5683 useless extension candidates. Maximal degree in co-relation 19544. Up to 9824 conditions per place. [2024-11-27 19:50:45,075 INFO L140 encePairwiseOnDemand]: 129/179 looper letters, 116 selfloop transitions, 18 changer transitions 2/144 dead transitions. [2024-11-27 19:50:45,075 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 144 transitions, 570 flow [2024-11-27 19:50:45,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 19:50:45,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-27 19:50:45,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 211 transitions. [2024-11-27 19:50:45,090 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.2946927374301676 [2024-11-27 19:50:45,092 INFO L175 Difference]: Start difference. First operand has 155 places, 176 transitions, 364 flow. Second operand 4 states and 211 transitions. [2024-11-27 19:50:45,093 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 144 transitions, 570 flow [2024-11-27 19:50:45,101 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 144 transitions, 562 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-27 19:50:45,106 INFO L231 Difference]: Finished difference. Result has 126 places, 142 transitions, 323 flow [2024-11-27 19:50:45,109 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=292, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=323, PETRI_PLACES=126, PETRI_TRANSITIONS=142} [2024-11-27 19:50:45,114 INFO L279 CegarLoopForPetriNet]: 155 programPoint places, -29 predicate places. [2024-11-27 19:50:45,114 INFO L471 AbstractCegarLoop]: Abstraction has has 126 places, 142 transitions, 323 flow [2024-11-27 19:50:45,114 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:50:45,114 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 19:50:45,115 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-27 19:50:45,115 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-27 19:50:45,115 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2024-11-27 19:50:45,116 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:50:45,116 INFO L85 PathProgramCache]: Analyzing trace with hash 172150695, now seen corresponding path program 1 times [2024-11-27 19:50:45,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:50:45,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892974640] [2024-11-27 19:50:45,117 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:50:45,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:50:45,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:50:45,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 19:50:45,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:50:45,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892974640] [2024-11-27 19:50:45,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1892974640] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:50:45,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:50:45,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 19:50:45,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530797164] [2024-11-27 19:50:45,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:50:45,282 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 19:50:45,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:50:45,283 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 19:50:45,283 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 19:50:45,328 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 179 [2024-11-27 19:50:45,328 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 142 transitions, 323 flow. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:50:45,328 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 19:50:45,328 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 179 [2024-11-27 19:50:45,328 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 19:50:48,975 INFO L124 PetriNetUnfolderBase]: 6352/9894 cut-off events. [2024-11-27 19:50:48,975 INFO L125 PetriNetUnfolderBase]: For 53/53 co-relation queries the response was YES. [2024-11-27 19:50:48,985 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19852 conditions, 9894 events. 6352/9894 cut-off events. For 53/53 co-relation queries the response was YES. Maximal size of possible extension queue 526. Compared 60407 event pairs, 5000 based on Foata normal form. 8/5725 useless extension candidates. Maximal degree in co-relation 19684. Up to 9856 conditions per place. [2024-11-27 19:50:49,026 INFO L140 encePairwiseOnDemand]: 146/179 looper letters, 133 selfloop transitions, 25 changer transitions 0/166 dead transitions. [2024-11-27 19:50:49,027 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 166 transitions, 721 flow [2024-11-27 19:50:49,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 19:50:49,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-27 19:50:49,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 210 transitions. [2024-11-27 19:50:49,030 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.29329608938547486 [2024-11-27 19:50:49,030 INFO L175 Difference]: Start difference. First operand has 126 places, 142 transitions, 323 flow. Second operand 4 states and 210 transitions. [2024-11-27 19:50:49,030 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 166 transitions, 721 flow [2024-11-27 19:50:49,034 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 166 transitions, 651 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-27 19:50:49,040 INFO L231 Difference]: Finished difference. Result has 127 places, 166 transitions, 499 flow [2024-11-27 19:50:49,040 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=287, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=499, PETRI_PLACES=127, PETRI_TRANSITIONS=166} [2024-11-27 19:50:49,041 INFO L279 CegarLoopForPetriNet]: 155 programPoint places, -28 predicate places. [2024-11-27 19:50:49,041 INFO L471 AbstractCegarLoop]: Abstraction has has 127 places, 166 transitions, 499 flow [2024-11-27 19:50:49,041 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:50:49,041 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 19:50:49,041 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2024-11-27 19:50:49,042 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-27 19:50:49,042 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2024-11-27 19:50:49,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:50:49,042 INFO L85 PathProgramCache]: Analyzing trace with hash 355962744, now seen corresponding path program 1 times [2024-11-27 19:50:49,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:50:49,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770462164] [2024-11-27 19:50:49,044 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:50:49,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:50:49,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:50:49,253 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 19:50:49,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:50:49,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770462164] [2024-11-27 19:50:49,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770462164] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 19:50:49,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [626132083] [2024-11-27 19:50:49,253 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:50:49,253 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:50:49,253 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a7cc66f-8058-4bc5-870a-90fa268a5000/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:50:49,256 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a7cc66f-8058-4bc5-870a-90fa268a5000/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:50:49,259 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a7cc66f-8058-4bc5-870a-90fa268a5000/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 19:50:49,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:50:49,857 INFO L256 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 19:50:49,861 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:50:49,918 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 19:50:49,918 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 19:50:49,972 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 19:50:49,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [626132083] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 19:50:49,973 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 19:50:49,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2024-11-27 19:50:49,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521517057] [2024-11-27 19:50:49,973 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 19:50:49,974 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-27 19:50:49,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:50:49,975 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-27 19:50:49,975 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-27 19:50:50,149 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 179 [2024-11-27 19:50:50,150 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 166 transitions, 499 flow. Second operand has 12 states, 12 states have (on average 12.083333333333334) internal successors, (145), 12 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:50:50,150 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 19:50:50,150 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 179 [2024-11-27 19:50:50,150 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 19:50:52,886 INFO L124 PetriNetUnfolderBase]: 6376/9990 cut-off events. [2024-11-27 19:50:52,887 INFO L125 PetriNetUnfolderBase]: For 121/121 co-relation queries the response was YES. [2024-11-27 19:50:52,896 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20162 conditions, 9990 events. 6376/9990 cut-off events. For 121/121 co-relation queries the response was YES. Maximal size of possible extension queue 527. Compared 61308 event pairs, 5000 based on Foata normal form. 0/5803 useless extension candidates. Maximal degree in co-relation 19713. Up to 9859 conditions per place. [2024-11-27 19:50:52,923 INFO L140 encePairwiseOnDemand]: 146/179 looper letters, 133 selfloop transitions, 97 changer transitions 0/238 dead transitions. [2024-11-27 19:50:52,923 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 238 transitions, 1289 flow [2024-11-27 19:50:52,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-27 19:50:52,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-27 19:50:52,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 364 transitions. [2024-11-27 19:50:52,927 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.20335195530726258 [2024-11-27 19:50:52,927 INFO L175 Difference]: Start difference. First operand has 127 places, 166 transitions, 499 flow. Second operand 10 states and 364 transitions. [2024-11-27 19:50:52,927 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 238 transitions, 1289 flow [2024-11-27 19:50:52,930 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 238 transitions, 1289 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-27 19:50:52,933 INFO L231 Difference]: Finished difference. Result has 139 places, 238 transitions, 1153 flow [2024-11-27 19:50:52,934 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=499, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=166, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=42, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1153, PETRI_PLACES=139, PETRI_TRANSITIONS=238} [2024-11-27 19:50:52,934 INFO L279 CegarLoopForPetriNet]: 155 programPoint places, -16 predicate places. [2024-11-27 19:50:52,934 INFO L471 AbstractCegarLoop]: Abstraction has has 139 places, 238 transitions, 1153 flow [2024-11-27 19:50:52,935 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 12.083333333333334) internal successors, (145), 12 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:50:52,935 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 19:50:52,935 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:50:52,946 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a7cc66f-8058-4bc5-870a-90fa268a5000/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-27 19:50:53,135 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a7cc66f-8058-4bc5-870a-90fa268a5000/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:50:53,136 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2024-11-27 19:50:53,137 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:50:53,137 INFO L85 PathProgramCache]: Analyzing trace with hash -735169607, now seen corresponding path program 1 times [2024-11-27 19:50:53,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:50:53,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830906434] [2024-11-27 19:50:53,137 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:50:53,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:50:53,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:50:53,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 19:50:53,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:50:53,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830906434] [2024-11-27 19:50:53,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830906434] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:50:53,449 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:50:53,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 19:50:53,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253210179] [2024-11-27 19:50:53,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:50:53,449 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 19:50:53,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:50:53,450 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 19:50:53,450 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 19:50:53,450 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 179 [2024-11-27 19:50:53,450 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 238 transitions, 1153 flow. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:50:53,450 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 19:50:53,450 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 179 [2024-11-27 19:50:53,450 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 19:50:56,313 INFO L124 PetriNetUnfolderBase]: 6372/9986 cut-off events. [2024-11-27 19:50:56,313 INFO L125 PetriNetUnfolderBase]: For 284/284 co-relation queries the response was YES. [2024-11-27 19:50:56,337 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20308 conditions, 9986 events. 6372/9986 cut-off events. For 284/284 co-relation queries the response was YES. Maximal size of possible extension queue 528. Compared 61012 event pairs, 5000 based on Foata normal form. 4/5814 useless extension candidates. Maximal degree in co-relation 20068. Up to 9918 conditions per place. [2024-11-27 19:50:56,369 INFO L140 encePairwiseOnDemand]: 170/179 looper letters, 197 selfloop transitions, 21 changer transitions 0/234 dead transitions. [2024-11-27 19:50:56,369 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 234 transitions, 1573 flow [2024-11-27 19:50:56,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 19:50:56,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-27 19:50:56,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 219 transitions. [2024-11-27 19:50:56,372 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.40782122905027934 [2024-11-27 19:50:56,372 INFO L175 Difference]: Start difference. First operand has 139 places, 238 transitions, 1153 flow. Second operand 3 states and 219 transitions. [2024-11-27 19:50:56,372 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 234 transitions, 1573 flow [2024-11-27 19:50:56,378 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 234 transitions, 1323 flow, removed 60 selfloop flow, removed 4 redundant places. [2024-11-27 19:50:56,382 INFO L231 Difference]: Finished difference. Result has 137 places, 234 transitions, 929 flow [2024-11-27 19:50:56,383 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=887, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=234, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=213, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=929, PETRI_PLACES=137, PETRI_TRANSITIONS=234} [2024-11-27 19:50:56,384 INFO L279 CegarLoopForPetriNet]: 155 programPoint places, -18 predicate places. [2024-11-27 19:50:56,384 INFO L471 AbstractCegarLoop]: Abstraction has has 137 places, 234 transitions, 929 flow [2024-11-27 19:50:56,384 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:50:56,384 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 19:50:56,384 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1] [2024-11-27 19:50:56,384 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-27 19:50:56,385 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2024-11-27 19:50:56,385 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:50:56,385 INFO L85 PathProgramCache]: Analyzing trace with hash 1241304167, now seen corresponding path program 2 times [2024-11-27 19:50:56,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:50:56,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986291343] [2024-11-27 19:50:56,386 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 19:50:56,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:50:56,413 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-27 19:50:56,413 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 19:50:56,452 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-27 19:50:56,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:50:56,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986291343] [2024-11-27 19:50:56,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986291343] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 19:50:56,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1653014309] [2024-11-27 19:50:56,452 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 19:50:56,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:50:56,453 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a7cc66f-8058-4bc5-870a-90fa268a5000/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:50:56,455 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a7cc66f-8058-4bc5-870a-90fa268a5000/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:50:56,459 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a7cc66f-8058-4bc5-870a-90fa268a5000/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-27 19:50:57,021 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-27 19:50:57,021 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 19:50:57,022 INFO L256 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 19:50:57,023 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:50:57,058 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-27 19:50:57,058 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 19:50:57,106 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-27 19:50:57,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1653014309] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 19:50:57,107 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 19:50:57,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 4 [2024-11-27 19:50:57,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516105535] [2024-11-27 19:50:57,107 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 19:50:57,108 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 19:50:57,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:50:57,108 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 19:50:57,108 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-27 19:50:57,183 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 179 [2024-11-27 19:50:57,184 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 234 transitions, 929 flow. Second operand has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:50:57,184 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 19:50:57,184 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 179 [2024-11-27 19:50:57,184 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 19:50:59,511 INFO L124 PetriNetUnfolderBase]: 6372/9978 cut-off events. [2024-11-27 19:50:59,511 INFO L125 PetriNetUnfolderBase]: For 204/204 co-relation queries the response was YES. [2024-11-27 19:50:59,523 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20173 conditions, 9978 events. 6372/9978 cut-off events. For 204/204 co-relation queries the response was YES. Maximal size of possible extension queue 559. Compared 61201 event pairs, 5000 based on Foata normal form. 8/5807 useless extension candidates. Maximal degree in co-relation 20002. Up to 9827 conditions per place. [2024-11-27 19:50:59,548 INFO L140 encePairwiseOnDemand]: 152/179 looper letters, 128 selfloop transitions, 90 changer transitions 0/226 dead transitions. [2024-11-27 19:50:59,548 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 226 transitions, 1285 flow [2024-11-27 19:50:59,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 19:50:59,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-27 19:50:59,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 200 transitions. [2024-11-27 19:50:59,550 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.186219739292365 [2024-11-27 19:50:59,550 INFO L175 Difference]: Start difference. First operand has 137 places, 234 transitions, 929 flow. Second operand 6 states and 200 transitions. [2024-11-27 19:50:59,550 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 226 transitions, 1285 flow [2024-11-27 19:50:59,554 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 226 transitions, 1184 flow, removed 8 selfloop flow, removed 5 redundant places. [2024-11-27 19:50:59,557 INFO L231 Difference]: Finished difference. Result has 129 places, 226 transitions, 928 flow [2024-11-27 19:50:59,558 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=748, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=226, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=90, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=928, PETRI_PLACES=129, PETRI_TRANSITIONS=226} [2024-11-27 19:50:59,558 INFO L279 CegarLoopForPetriNet]: 155 programPoint places, -26 predicate places. [2024-11-27 19:50:59,558 INFO L471 AbstractCegarLoop]: Abstraction has has 129 places, 226 transitions, 928 flow [2024-11-27 19:50:59,558 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:50:59,559 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 19:50:59,559 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:50:59,569 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a7cc66f-8058-4bc5-870a-90fa268a5000/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-27 19:50:59,763 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a7cc66f-8058-4bc5-870a-90fa268a5000/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:50:59,763 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2024-11-27 19:50:59,763 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:50:59,764 INFO L85 PathProgramCache]: Analyzing trace with hash 1035082568, now seen corresponding path program 1 times [2024-11-27 19:50:59,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:50:59,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115350320] [2024-11-27 19:50:59,764 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:50:59,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:50:59,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:51:00,067 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-27 19:51:00,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:51:00,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115350320] [2024-11-27 19:51:00,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115350320] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:51:00,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:51:00,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 19:51:00,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785156005] [2024-11-27 19:51:00,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:51:00,069 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 19:51:00,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:51:00,070 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 19:51:00,070 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 19:51:00,070 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 179 [2024-11-27 19:51:00,071 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 226 transitions, 928 flow. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:51:00,071 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 19:51:00,072 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 179 [2024-11-27 19:51:00,072 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 19:51:02,108 INFO L124 PetriNetUnfolderBase]: 6370/9976 cut-off events. [2024-11-27 19:51:02,108 INFO L125 PetriNetUnfolderBase]: For 199/199 co-relation queries the response was YES. [2024-11-27 19:51:02,114 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20208 conditions, 9976 events. 6370/9976 cut-off events. For 199/199 co-relation queries the response was YES. Maximal size of possible extension queue 558. Compared 60999 event pairs, 5000 based on Foata normal form. 2/5795 useless extension candidates. Maximal degree in co-relation 19684. Up to 9927 conditions per place. [2024-11-27 19:51:02,130 INFO L140 encePairwiseOnDemand]: 174/179 looper letters, 206 selfloop transitions, 10 changer transitions 0/224 dead transitions. [2024-11-27 19:51:02,130 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 224 transitions, 1349 flow [2024-11-27 19:51:02,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 19:51:02,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-27 19:51:02,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 213 transitions. [2024-11-27 19:51:02,131 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.39664804469273746 [2024-11-27 19:51:02,131 INFO L175 Difference]: Start difference. First operand has 129 places, 226 transitions, 928 flow. Second operand 3 states and 213 transitions. [2024-11-27 19:51:02,131 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 224 transitions, 1349 flow [2024-11-27 19:51:02,133 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 224 transitions, 1171 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-27 19:51:02,136 INFO L231 Difference]: Finished difference. Result has 126 places, 224 transitions, 759 flow [2024-11-27 19:51:02,137 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=739, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=224, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=214, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=759, PETRI_PLACES=126, PETRI_TRANSITIONS=224} [2024-11-27 19:51:02,137 INFO L279 CegarLoopForPetriNet]: 155 programPoint places, -29 predicate places. [2024-11-27 19:51:02,138 INFO L471 AbstractCegarLoop]: Abstraction has has 126 places, 224 transitions, 759 flow [2024-11-27 19:51:02,138 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:51:02,138 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 19:51:02,138 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:51:02,138 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-27 19:51:02,138 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2024-11-27 19:51:02,139 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:51:02,139 INFO L85 PathProgramCache]: Analyzing trace with hash 1675812711, now seen corresponding path program 1 times [2024-11-27 19:51:02,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:51:02,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011073269] [2024-11-27 19:51:02,139 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:51:02,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:51:02,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:51:02,380 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-27 19:51:02,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:51:02,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011073269] [2024-11-27 19:51:02,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011073269] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 19:51:02,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [441105748] [2024-11-27 19:51:02,382 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:51:02,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:51:02,382 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a7cc66f-8058-4bc5-870a-90fa268a5000/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:51:02,387 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a7cc66f-8058-4bc5-870a-90fa268a5000/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:51:02,389 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a7cc66f-8058-4bc5-870a-90fa268a5000/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-27 19:51:02,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:51:02,967 INFO L256 TraceCheckSpWp]: Trace formula consists of 397 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 19:51:02,969 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:51:02,991 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-27 19:51:02,991 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 19:51:02,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [441105748] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:51:02,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 19:51:02,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-11-27 19:51:02,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729979920] [2024-11-27 19:51:02,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:51:02,992 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 19:51:02,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:51:02,993 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 19:51:02,993 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-27 19:51:02,993 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 179 [2024-11-27 19:51:02,993 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 224 transitions, 759 flow. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:51:02,994 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 19:51:02,994 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 179 [2024-11-27 19:51:02,994 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 19:51:04,979 INFO L124 PetriNetUnfolderBase]: 6368/9974 cut-off events. [2024-11-27 19:51:04,979 INFO L125 PetriNetUnfolderBase]: For 111/111 co-relation queries the response was YES. [2024-11-27 19:51:04,985 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20122 conditions, 9974 events. 6368/9974 cut-off events. For 111/111 co-relation queries the response was YES. Maximal size of possible extension queue 558. Compared 60933 event pairs, 5000 based on Foata normal form. 2/5777 useless extension candidates. Maximal degree in co-relation 19724. Up to 9918 conditions per place. [2024-11-27 19:51:05,001 INFO L140 encePairwiseOnDemand]: 170/179 looper letters, 197 selfloop transitions, 17 changer transitions 0/222 dead transitions. [2024-11-27 19:51:05,001 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 222 transitions, 1178 flow [2024-11-27 19:51:05,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 19:51:05,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-27 19:51:05,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 217 transitions. [2024-11-27 19:51:05,003 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.40409683426443205 [2024-11-27 19:51:05,003 INFO L175 Difference]: Start difference. First operand has 126 places, 224 transitions, 759 flow. Second operand 3 states and 217 transitions. [2024-11-27 19:51:05,003 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 222 transitions, 1178 flow [2024-11-27 19:51:05,005 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 222 transitions, 1131 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-27 19:51:05,008 INFO L231 Difference]: Finished difference. Result has 126 places, 222 transitions, 737 flow [2024-11-27 19:51:05,008 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=703, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=222, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=205, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=737, PETRI_PLACES=126, PETRI_TRANSITIONS=222} [2024-11-27 19:51:05,009 INFO L279 CegarLoopForPetriNet]: 155 programPoint places, -29 predicate places. [2024-11-27 19:51:05,010 INFO L471 AbstractCegarLoop]: Abstraction has has 126 places, 222 transitions, 737 flow [2024-11-27 19:51:05,010 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:51:05,011 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 19:51:05,011 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:51:05,024 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a7cc66f-8058-4bc5-870a-90fa268a5000/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-27 19:51:05,211 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a7cc66f-8058-4bc5-870a-90fa268a5000/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:51:05,211 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2024-11-27 19:51:05,212 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:51:05,212 INFO L85 PathProgramCache]: Analyzing trace with hash -416617708, now seen corresponding path program 1 times [2024-11-27 19:51:05,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:51:05,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848220352] [2024-11-27 19:51:05,212 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:51:05,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:51:05,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:51:05,493 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-27 19:51:05,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:51:05,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848220352] [2024-11-27 19:51:05,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848220352] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 19:51:05,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [422997437] [2024-11-27 19:51:05,495 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:51:05,495 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:51:05,495 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a7cc66f-8058-4bc5-870a-90fa268a5000/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:51:05,497 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a7cc66f-8058-4bc5-870a-90fa268a5000/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:51:05,501 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a7cc66f-8058-4bc5-870a-90fa268a5000/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-27 19:51:06,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:51:06,089 INFO L256 TraceCheckSpWp]: Trace formula consists of 423 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-27 19:51:06,091 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:51:06,154 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-27 19:51:06,154 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 19:51:06,207 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-27 19:51:06,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [422997437] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 19:51:06,208 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 19:51:06,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 11 [2024-11-27 19:51:06,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882798603] [2024-11-27 19:51:06,208 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 19:51:06,209 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-27 19:51:06,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:51:06,210 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-27 19:51:06,210 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2024-11-27 19:51:06,383 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 179 [2024-11-27 19:51:06,383 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 222 transitions, 737 flow. Second operand has 11 states, 11 states have (on average 15.272727272727273) internal successors, (168), 11 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:51:06,384 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 19:51:06,384 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 179 [2024-11-27 19:51:06,384 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 19:51:09,105 INFO L124 PetriNetUnfolderBase]: 6352/9958 cut-off events. [2024-11-27 19:51:09,105 INFO L125 PetriNetUnfolderBase]: For 99/99 co-relation queries the response was YES. [2024-11-27 19:51:09,111 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20042 conditions, 9958 events. 6352/9958 cut-off events. For 99/99 co-relation queries the response was YES. Maximal size of possible extension queue 558. Compared 60594 event pairs, 5000 based on Foata normal form. 6/5779 useless extension candidates. Maximal degree in co-relation 19718. Up to 9848 conditions per place. [2024-11-27 19:51:09,126 INFO L140 encePairwiseOnDemand]: 154/179 looper letters, 111 selfloop transitions, 87 changer transitions 0/206 dead transitions. [2024-11-27 19:51:09,126 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 206 transitions, 1045 flow [2024-11-27 19:51:09,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-27 19:51:09,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-27 19:51:09,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 303 transitions. [2024-11-27 19:51:09,128 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.15388522092432708 [2024-11-27 19:51:09,128 INFO L175 Difference]: Start difference. First operand has 126 places, 222 transitions, 737 flow. Second operand 11 states and 303 transitions. [2024-11-27 19:51:09,128 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 206 transitions, 1045 flow [2024-11-27 19:51:09,130 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 206 transitions, 1034 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-27 19:51:09,133 INFO L231 Difference]: Finished difference. Result has 135 places, 206 transitions, 812 flow [2024-11-27 19:51:09,133 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=638, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=206, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=87, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=812, PETRI_PLACES=135, PETRI_TRANSITIONS=206} [2024-11-27 19:51:09,134 INFO L279 CegarLoopForPetriNet]: 155 programPoint places, -20 predicate places. [2024-11-27 19:51:09,134 INFO L471 AbstractCegarLoop]: Abstraction has has 135 places, 206 transitions, 812 flow [2024-11-27 19:51:09,134 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.272727272727273) internal successors, (168), 11 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:51:09,134 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 19:51:09,134 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:51:09,145 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a7cc66f-8058-4bc5-870a-90fa268a5000/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-27 19:51:09,335 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a7cc66f-8058-4bc5-870a-90fa268a5000/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-11-27 19:51:09,335 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2024-11-27 19:51:09,335 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:51:09,335 INFO L85 PathProgramCache]: Analyzing trace with hash 1088381076, now seen corresponding path program 2 times [2024-11-27 19:51:09,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:51:09,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147331748] [2024-11-27 19:51:09,336 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 19:51:09,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:51:09,430 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 19:51:09,430 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 19:51:09,822 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-27 19:51:09,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:51:09,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147331748] [2024-11-27 19:51:09,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147331748] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 19:51:09,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [485399211] [2024-11-27 19:51:09,822 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 19:51:09,822 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:51:09,822 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a7cc66f-8058-4bc5-870a-90fa268a5000/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:51:09,827 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a7cc66f-8058-4bc5-870a-90fa268a5000/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:51:09,828 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a7cc66f-8058-4bc5-870a-90fa268a5000/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-27 19:51:10,469 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 19:51:10,469 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 19:51:10,472 INFO L256 TraceCheckSpWp]: Trace formula consists of 631 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-27 19:51:10,475 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:51:10,598 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-27 19:51:10,598 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 19:51:10,674 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-27 19:51:10,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [485399211] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 19:51:10,674 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 19:51:10,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2024-11-27 19:51:10,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204294181] [2024-11-27 19:51:10,674 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 19:51:10,675 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-27 19:51:10,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:51:10,676 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-27 19:51:10,676 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2024-11-27 19:51:10,867 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 179 [2024-11-27 19:51:10,868 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 206 transitions, 812 flow. Second operand has 18 states, 18 states have (on average 13.555555555555555) internal successors, (244), 18 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:51:10,868 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 19:51:10,868 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 179 [2024-11-27 19:51:10,868 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 19:51:14,594 INFO L124 PetriNetUnfolderBase]: 6344/9954 cut-off events. [2024-11-27 19:51:14,594 INFO L125 PetriNetUnfolderBase]: For 189/189 co-relation queries the response was YES. [2024-11-27 19:51:14,601 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20101 conditions, 9954 events. 6344/9954 cut-off events. For 189/189 co-relation queries the response was YES. Maximal size of possible extension queue 526. Compared 60161 event pairs, 5000 based on Foata normal form. 2/5774 useless extension candidates. Maximal degree in co-relation 19687. Up to 9835 conditions per place. [2024-11-27 19:51:14,622 INFO L140 encePairwiseOnDemand]: 154/179 looper letters, 110 selfloop transitions, 84 changer transitions 0/202 dead transitions. [2024-11-27 19:51:14,623 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 202 transitions, 1169 flow [2024-11-27 19:51:14,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-27 19:51:14,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2024-11-27 19:51:14,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 389 transitions. [2024-11-27 19:51:14,626 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.12783437397305292 [2024-11-27 19:51:14,626 INFO L175 Difference]: Start difference. First operand has 135 places, 206 transitions, 812 flow. Second operand 17 states and 389 transitions. [2024-11-27 19:51:14,626 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 202 transitions, 1169 flow [2024-11-27 19:51:14,629 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 202 transitions, 1089 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-11-27 19:51:14,633 INFO L231 Difference]: Finished difference. Result has 147 places, 202 transitions, 935 flow [2024-11-27 19:51:14,634 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=677, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=198, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=80, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=935, PETRI_PLACES=147, PETRI_TRANSITIONS=202} [2024-11-27 19:51:14,634 INFO L279 CegarLoopForPetriNet]: 155 programPoint places, -8 predicate places. [2024-11-27 19:51:14,634 INFO L471 AbstractCegarLoop]: Abstraction has has 147 places, 202 transitions, 935 flow [2024-11-27 19:51:14,635 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 13.555555555555555) internal successors, (244), 18 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:51:14,635 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 19:51:14,635 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:51:14,648 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a7cc66f-8058-4bc5-870a-90fa268a5000/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-27 19:51:14,835 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a7cc66f-8058-4bc5-870a-90fa268a5000/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-11-27 19:51:14,836 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2024-11-27 19:51:14,836 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:51:14,836 INFO L85 PathProgramCache]: Analyzing trace with hash 1916780162, now seen corresponding path program 3 times [2024-11-27 19:51:14,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:51:14,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388194753] [2024-11-27 19:51:14,837 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 19:51:14,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:51:15,235 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-11-27 19:51:15,235 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 19:51:15,919 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 193 trivial. 0 not checked. [2024-11-27 19:51:15,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:51:15,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388194753] [2024-11-27 19:51:15,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388194753] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 19:51:15,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1414209176] [2024-11-27 19:51:15,920 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 19:51:15,920 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:51:15,920 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a7cc66f-8058-4bc5-870a-90fa268a5000/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:51:15,922 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a7cc66f-8058-4bc5-870a-90fa268a5000/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:51:15,925 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a7cc66f-8058-4bc5-870a-90fa268a5000/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-27 19:51:18,296 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-11-27 19:51:18,296 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 19:51:18,302 INFO L256 TraceCheckSpWp]: Trace formula consists of 787 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-27 19:51:18,305 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:51:18,535 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 193 trivial. 0 not checked. [2024-11-27 19:51:18,535 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 19:51:18,811 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 193 trivial. 0 not checked. [2024-11-27 19:51:18,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1414209176] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 19:51:18,811 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 19:51:18,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 35 [2024-11-27 19:51:18,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941864713] [2024-11-27 19:51:18,811 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 19:51:18,812 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2024-11-27 19:51:18,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:51:18,813 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2024-11-27 19:51:18,813 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=890, Unknown=0, NotChecked=0, Total=1190 [2024-11-27 19:51:19,135 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 179 [2024-11-27 19:51:19,136 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 202 transitions, 935 flow. Second operand has 35 states, 35 states have (on average 12.857142857142858) internal successors, (450), 35 states have internal predecessors, (450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:51:19,136 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 19:51:19,136 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 179 [2024-11-27 19:51:19,136 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 19:51:22,221 INFO L124 PetriNetUnfolderBase]: 6344/9990 cut-off events. [2024-11-27 19:51:22,221 INFO L125 PetriNetUnfolderBase]: For 435/435 co-relation queries the response was YES. [2024-11-27 19:51:22,231 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20336 conditions, 9990 events. 6344/9990 cut-off events. For 435/435 co-relation queries the response was YES. Maximal size of possible extension queue 526. Compared 60147 event pairs, 5000 based on Foata normal form. 12/5827 useless extension candidates. Maximal degree in co-relation 19688. Up to 9835 conditions per place. [2024-11-27 19:51:22,249 INFO L140 encePairwiseOnDemand]: 154/179 looper letters, 110 selfloop transitions, 108 changer transitions 0/226 dead transitions. [2024-11-27 19:51:22,249 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 226 transitions, 1611 flow [2024-11-27 19:51:22,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-27 19:51:22,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2024-11-27 19:51:22,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 479 transitions. [2024-11-27 19:51:22,251 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.11634685450570804 [2024-11-27 19:51:22,251 INFO L175 Difference]: Start difference. First operand has 147 places, 202 transitions, 935 flow. Second operand 23 states and 479 transitions. [2024-11-27 19:51:22,252 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 226 transitions, 1611 flow [2024-11-27 19:51:22,253 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 159 places, 226 transitions, 1515 flow, removed 0 selfloop flow, removed 10 redundant places. [2024-11-27 19:51:22,255 INFO L231 Difference]: Finished difference. Result has 165 places, 226 transitions, 1399 flow [2024-11-27 19:51:22,256 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=839, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=202, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=86, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=1399, PETRI_PLACES=165, PETRI_TRANSITIONS=226} [2024-11-27 19:51:22,256 INFO L279 CegarLoopForPetriNet]: 155 programPoint places, 10 predicate places. [2024-11-27 19:51:22,256 INFO L471 AbstractCegarLoop]: Abstraction has has 165 places, 226 transitions, 1399 flow [2024-11-27 19:51:22,257 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 12.857142857142858) internal successors, (450), 35 states have internal predecessors, (450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:51:22,257 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 19:51:22,257 INFO L206 CegarLoopForPetriNet]: trace histogram [11, 11, 11, 11, 11, 11, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:51:22,266 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a7cc66f-8058-4bc5-870a-90fa268a5000/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-27 19:51:22,457 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a7cc66f-8058-4bc5-870a-90fa268a5000/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-27 19:51:22,458 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2024-11-27 19:51:22,458 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:51:22,458 INFO L85 PathProgramCache]: Analyzing trace with hash -1573363742, now seen corresponding path program 4 times [2024-11-27 19:51:22,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:51:22,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505446458] [2024-11-27 19:51:22,459 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-27 19:51:22,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:51:22,561 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-27 19:51:22,561 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 19:51:23,743 INFO L134 CoverageAnalysis]: Checked inductivity of 510 backedges. 0 proven. 176 refuted. 0 times theorem prover too weak. 334 trivial. 0 not checked. [2024-11-27 19:51:23,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:51:23,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505446458] [2024-11-27 19:51:23,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505446458] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 19:51:23,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [345559659] [2024-11-27 19:51:23,745 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-27 19:51:23,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:51:23,745 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a7cc66f-8058-4bc5-870a-90fa268a5000/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:51:23,747 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a7cc66f-8058-4bc5-870a-90fa268a5000/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:51:23,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a7cc66f-8058-4bc5-870a-90fa268a5000/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-27 19:51:24,472 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-27 19:51:24,472 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 19:51:24,481 INFO L256 TraceCheckSpWp]: Trace formula consists of 943 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-27 19:51:24,487 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:51:25,104 INFO L134 CoverageAnalysis]: Checked inductivity of 510 backedges. 0 proven. 176 refuted. 0 times theorem prover too weak. 334 trivial. 0 not checked. [2024-11-27 19:51:25,104 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 19:51:25,497 INFO L134 CoverageAnalysis]: Checked inductivity of 510 backedges. 0 proven. 176 refuted. 0 times theorem prover too weak. 334 trivial. 0 not checked. [2024-11-27 19:51:25,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [345559659] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 19:51:25,498 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 19:51:25,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 50 [2024-11-27 19:51:25,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650354115] [2024-11-27 19:51:25,498 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 19:51:25,499 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2024-11-27 19:51:25,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:51:25,500 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2024-11-27 19:51:25,501 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=550, Invalid=1900, Unknown=0, NotChecked=0, Total=2450 [2024-11-27 19:51:25,869 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 179 [2024-11-27 19:51:25,870 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 226 transitions, 1399 flow. Second operand has 50 states, 50 states have (on average 12.56) internal successors, (628), 50 states have internal predecessors, (628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:51:25,870 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 19:51:25,870 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 179 [2024-11-27 19:51:25,870 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 19:51:29,124 INFO L124 PetriNetUnfolderBase]: 6344/10002 cut-off events. [2024-11-27 19:51:29,124 INFO L125 PetriNetUnfolderBase]: For 813/813 co-relation queries the response was YES. [2024-11-27 19:51:29,152 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20517 conditions, 10002 events. 6344/10002 cut-off events. For 813/813 co-relation queries the response was YES. Maximal size of possible extension queue 526. Compared 60169 event pairs, 5000 based on Foata normal form. 4/5831 useless extension candidates. Maximal degree in co-relation 19694. Up to 9835 conditions per place. [2024-11-27 19:51:29,174 INFO L140 encePairwiseOnDemand]: 154/179 looper letters, 110 selfloop transitions, 116 changer transitions 0/234 dead transitions. [2024-11-27 19:51:29,174 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 199 places, 234 transitions, 1955 flow [2024-11-27 19:51:29,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-11-27 19:51:29,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2024-11-27 19:51:29,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 611 transitions. [2024-11-27 19:51:29,179 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.09752593774940144 [2024-11-27 19:51:29,179 INFO L175 Difference]: Start difference. First operand has 165 places, 226 transitions, 1399 flow. Second operand 35 states and 611 transitions. [2024-11-27 19:51:29,179 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 199 places, 234 transitions, 1955 flow [2024-11-27 19:51:29,185 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 234 transitions, 1931 flow, removed 10 selfloop flow, removed 1 redundant places. [2024-11-27 19:51:29,189 INFO L231 Difference]: Finished difference. Result has 200 places, 234 transitions, 1751 flow [2024-11-27 19:51:29,189 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=1375, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=226, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=110, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=35, PETRI_FLOW=1751, PETRI_PLACES=200, PETRI_TRANSITIONS=234} [2024-11-27 19:51:29,190 INFO L279 CegarLoopForPetriNet]: 155 programPoint places, 45 predicate places. [2024-11-27 19:51:29,190 INFO L471 AbstractCegarLoop]: Abstraction has has 200 places, 234 transitions, 1751 flow [2024-11-27 19:51:29,190 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 12.56) internal successors, (628), 50 states have internal predecessors, (628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:51:29,190 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 19:51:29,191 INFO L206 CegarLoopForPetriNet]: trace histogram [13, 13, 13, 13, 13, 13, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:51:29,203 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a7cc66f-8058-4bc5-870a-90fa268a5000/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-27 19:51:29,395 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a7cc66f-8058-4bc5-870a-90fa268a5000/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-27 19:51:29,395 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2024-11-27 19:51:29,396 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:51:29,396 INFO L85 PathProgramCache]: Analyzing trace with hash 1295915778, now seen corresponding path program 5 times [2024-11-27 19:51:29,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:51:29,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758749051] [2024-11-27 19:51:29,396 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-27 19:51:29,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:51:30,212 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 14 check-sat command(s) [2024-11-27 19:51:30,212 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 19:51:36,201 INFO L134 CoverageAnalysis]: Checked inductivity of 652 backedges. 0 proven. 275 refuted. 0 times theorem prover too weak. 377 trivial. 0 not checked. [2024-11-27 19:51:36,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:51:36,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758749051] [2024-11-27 19:51:36,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758749051] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 19:51:36,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1105947107] [2024-11-27 19:51:36,202 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-27 19:51:36,202 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:51:36,203 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a7cc66f-8058-4bc5-870a-90fa268a5000/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:51:36,205 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a7cc66f-8058-4bc5-870a-90fa268a5000/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:51:36,208 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a7cc66f-8058-4bc5-870a-90fa268a5000/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process