./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_36-indirect_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca071c5b-c8e6-4c58-93d3-79e4c0d2f317/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca071c5b-c8e6-4c58-93d3-79e4c0d2f317/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca071c5b-c8e6-4c58-93d3-79e4c0d2f317/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca071c5b-c8e6-4c58-93d3-79e4c0d2f317/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_36-indirect_racefree.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca071c5b-c8e6-4c58-93d3-79e4c0d2f317/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca071c5b-c8e6-4c58-93d3-79e4c0d2f317/bin/uautomizer-verify-jihMAELWvX --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 3eff698bae51c39e8a3a4c763800dbda831dabb73a169fa31c8e326faee47cd8 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 17:48:35,891 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 17:48:35,974 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca071c5b-c8e6-4c58-93d3-79e4c0d2f317/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-08 17:48:35,981 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 17:48:35,981 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 17:48:36,018 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 17:48:36,018 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 17:48:36,019 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 17:48:36,021 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 17:48:36,022 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 17:48:36,023 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 17:48:36,023 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 17:48:36,024 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 17:48:36,024 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 17:48:36,024 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 17:48:36,027 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 17:48:36,028 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 17:48:36,028 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 17:48:36,029 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 17:48:36,033 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 17:48:36,033 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 17:48:36,034 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 17:48:36,034 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 17:48:36,035 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 17:48:36,035 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 17:48:36,035 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 17:48:36,035 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 17:48:36,036 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 17:48:36,036 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 17:48:36,036 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 17:48:36,036 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 17:48:36,037 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 17:48:36,037 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 17:48:36,037 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 17:48:36,038 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:48:36,041 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 17:48:36,041 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 17:48:36,041 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 17:48:36,042 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 17:48:36,042 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 17:48:36,042 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 17:48:36,043 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 17:48:36,043 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 17:48:36,044 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 17:48:36,044 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca071c5b-c8e6-4c58-93d3-79e4c0d2f317/bin/uautomizer-verify-jihMAELWvX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca071c5b-c8e6-4c58-93d3-79e4c0d2f317/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3eff698bae51c39e8a3a4c763800dbda831dabb73a169fa31c8e326faee47cd8 [2024-11-08 17:48:36,330 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 17:48:36,359 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 17:48:36,363 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 17:48:36,364 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 17:48:36,365 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 17:48:36,366 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca071c5b-c8e6-4c58-93d3-79e4c0d2f317/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/goblint-regression/28-race_reach_36-indirect_racefree.i Unable to find full path for "g++" [2024-11-08 17:48:38,410 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 17:48:38,633 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 17:48:38,634 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca071c5b-c8e6-4c58-93d3-79e4c0d2f317/sv-benchmarks/c/goblint-regression/28-race_reach_36-indirect_racefree.i [2024-11-08 17:48:38,655 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca071c5b-c8e6-4c58-93d3-79e4c0d2f317/bin/uautomizer-verify-jihMAELWvX/data/caf8c6c59/5d9a4e126ce14fdc9027cd42da2b2ce6/FLAGccb4dcc9d [2024-11-08 17:48:38,967 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca071c5b-c8e6-4c58-93d3-79e4c0d2f317/bin/uautomizer-verify-jihMAELWvX/data/caf8c6c59/5d9a4e126ce14fdc9027cd42da2b2ce6 [2024-11-08 17:48:38,970 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 17:48:38,971 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 17:48:38,973 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 17:48:38,973 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 17:48:38,979 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 17:48:38,980 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:48:38" (1/1) ... [2024-11-08 17:48:38,983 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1db0e8e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:48:38, skipping insertion in model container [2024-11-08 17:48:38,983 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:48:38" (1/1) ... [2024-11-08 17:48:39,040 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 17:48:39,471 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:48:39,494 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 17:48:39,564 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:48:39,622 INFO L204 MainTranslator]: Completed translation [2024-11-08 17:48:39,622 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:48:39 WrapperNode [2024-11-08 17:48:39,623 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 17:48:39,624 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 17:48:39,624 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 17:48:39,624 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 17:48:39,632 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:48:39" (1/1) ... [2024-11-08 17:48:39,651 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:48:39" (1/1) ... [2024-11-08 17:48:39,691 INFO L138 Inliner]: procedures = 171, calls = 43, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 87 [2024-11-08 17:48:39,691 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 17:48:39,692 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 17:48:39,692 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 17:48:39,692 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 17:48:39,703 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:48:39" (1/1) ... [2024-11-08 17:48:39,703 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:48:39" (1/1) ... [2024-11-08 17:48:39,707 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:48:39" (1/1) ... [2024-11-08 17:48:39,729 INFO L175 MemorySlicer]: Split 20 memory accesses to 5 slices as follows [2, 5, 6, 5, 2]. 30 percent of accesses are in the largest equivalence class. The 13 initializations are split as follows [2, 5, 1, 5, 0]. The 3 writes are split as follows [0, 0, 2, 0, 1]. [2024-11-08 17:48:39,730 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:48:39" (1/1) ... [2024-11-08 17:48:39,730 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:48:39" (1/1) ... [2024-11-08 17:48:39,737 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:48:39" (1/1) ... [2024-11-08 17:48:39,741 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:48:39" (1/1) ... [2024-11-08 17:48:39,743 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:48:39" (1/1) ... [2024-11-08 17:48:39,744 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:48:39" (1/1) ... [2024-11-08 17:48:39,747 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 17:48:39,748 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 17:48:39,749 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 17:48:39,749 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 17:48:39,750 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:48:39" (1/1) ... [2024-11-08 17:48:39,756 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:48:39,770 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca071c5b-c8e6-4c58-93d3-79e4c0d2f317/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:48:39,789 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca071c5b-c8e6-4c58-93d3-79e4c0d2f317/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 17:48:39,808 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca071c5b-c8e6-4c58-93d3-79e4c0d2f317/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 17:48:39,857 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-08 17:48:39,857 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-08 17:48:39,857 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-08 17:48:39,858 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-08 17:48:39,858 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-08 17:48:39,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-08 17:48:39,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-08 17:48:39,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-08 17:48:39,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-08 17:48:39,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-08 17:48:39,859 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-08 17:48:39,859 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 17:48:39,859 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-08 17:48:39,859 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-08 17:48:39,859 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-08 17:48:39,859 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 17:48:39,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 17:48:39,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-08 17:48:39,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-08 17:48:39,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-08 17:48:39,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-08 17:48:39,860 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-08 17:48:39,860 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 17:48:39,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 17:48:39,865 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-08 17:48:40,112 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 17:48:40,115 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 17:48:40,501 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-08 17:48:40,502 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 17:48:40,740 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 17:48:40,741 INFO L316 CfgBuilder]: Removed 8 assume(true) statements. [2024-11-08 17:48:40,741 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:48:40 BoogieIcfgContainer [2024-11-08 17:48:40,742 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 17:48:40,745 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 17:48:40,745 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 17:48:40,750 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 17:48:40,750 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 05:48:38" (1/3) ... [2024-11-08 17:48:40,751 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73d5e6b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:48:40, skipping insertion in model container [2024-11-08 17:48:40,751 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:48:39" (2/3) ... [2024-11-08 17:48:40,753 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73d5e6b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:48:40, skipping insertion in model container [2024-11-08 17:48:40,753 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:48:40" (3/3) ... [2024-11-08 17:48:40,755 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_36-indirect_racefree.i [2024-11-08 17:48:40,779 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 17:48:40,779 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2024-11-08 17:48:40,780 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-08 17:48:40,840 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-08 17:48:40,877 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 58 places, 66 transitions, 139 flow [2024-11-08 17:48:40,922 INFO L124 PetriNetUnfolderBase]: 15/87 cut-off events. [2024-11-08 17:48:40,922 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-08 17:48:40,927 INFO L83 FinitePrefix]: Finished finitePrefix Result has 92 conditions, 87 events. 15/87 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 253 event pairs, 0 based on Foata normal form. 0/61 useless extension candidates. Maximal degree in co-relation 57. Up to 4 conditions per place. [2024-11-08 17:48:40,927 INFO L82 GeneralOperation]: Start removeDead. Operand has 58 places, 66 transitions, 139 flow [2024-11-08 17:48:40,931 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 58 places, 65 transitions, 137 flow [2024-11-08 17:48:40,941 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 17:48:40,949 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;@309d5237, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 17:48:40,949 INFO L334 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2024-11-08 17:48:40,956 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 17:48:40,956 INFO L124 PetriNetUnfolderBase]: 1/14 cut-off events. [2024-11-08 17:48:40,956 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 17:48:40,957 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:48:40,957 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-08 17:48:40,958 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-08 17:48:40,963 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:48:40,963 INFO L85 PathProgramCache]: Analyzing trace with hash 2112132485, now seen corresponding path program 1 times [2024-11-08 17:48:40,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:48:40,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513358525] [2024-11-08 17:48:40,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:48:40,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:48:41,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:48:41,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:48:41,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:48:41,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513358525] [2024-11-08 17:48:41,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513358525] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:48:41,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:48:41,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 17:48:41,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746411850] [2024-11-08 17:48:41,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:48:41,388 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 17:48:41,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:48:41,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 17:48:41,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:48:41,469 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 66 [2024-11-08 17:48:41,472 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 65 transitions, 137 flow. Second operand has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 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) [2024-11-08 17:48:41,472 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:48:41,472 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 66 [2024-11-08 17:48:41,473 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:48:41,783 INFO L124 PetriNetUnfolderBase]: 165/437 cut-off events. [2024-11-08 17:48:41,784 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-08 17:48:41,786 INFO L83 FinitePrefix]: Finished finitePrefix Result has 769 conditions, 437 events. 165/437 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 2106 event pairs, 22 based on Foata normal form. 81/493 useless extension candidates. Maximal degree in co-relation 740. Up to 290 conditions per place. [2024-11-08 17:48:41,789 INFO L140 encePairwiseOnDemand]: 51/66 looper letters, 48 selfloop transitions, 3 changer transitions 0/78 dead transitions. [2024-11-08 17:48:41,789 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 78 transitions, 265 flow [2024-11-08 17:48:41,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 17:48:41,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 17:48:41,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 183 transitions. [2024-11-08 17:48:41,804 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6931818181818182 [2024-11-08 17:48:41,806 INFO L175 Difference]: Start difference. First operand has 58 places, 65 transitions, 137 flow. Second operand 4 states and 183 transitions. [2024-11-08 17:48:41,807 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 78 transitions, 265 flow [2024-11-08 17:48:41,810 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 78 transitions, 265 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 17:48:41,814 INFO L231 Difference]: Finished difference. Result has 60 places, 55 transitions, 129 flow [2024-11-08 17:48:41,816 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=117, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=129, PETRI_PLACES=60, PETRI_TRANSITIONS=55} [2024-11-08 17:48:41,821 INFO L277 CegarLoopForPetriNet]: 58 programPoint places, 2 predicate places. [2024-11-08 17:48:41,821 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 55 transitions, 129 flow [2024-11-08 17:48:41,822 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 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) [2024-11-08 17:48:41,822 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:48:41,822 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2024-11-08 17:48:41,822 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 17:48:41,823 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-08 17:48:41,823 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:48:41,823 INFO L85 PathProgramCache]: Analyzing trace with hash 664287396, now seen corresponding path program 1 times [2024-11-08 17:48:41,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:48:41,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518073361] [2024-11-08 17:48:41,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:48:41,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:48:41,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 17:48:41,873 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 17:48:41,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 17:48:41,941 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 17:48:41,941 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 17:48:41,943 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 13 remaining) [2024-11-08 17:48:41,947 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 13 remaining) [2024-11-08 17:48:41,947 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 13 remaining) [2024-11-08 17:48:41,948 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 13 remaining) [2024-11-08 17:48:41,948 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 13 remaining) [2024-11-08 17:48:41,948 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 13 remaining) [2024-11-08 17:48:41,950 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 13 remaining) [2024-11-08 17:48:41,950 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 13 remaining) [2024-11-08 17:48:41,951 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 13 remaining) [2024-11-08 17:48:41,951 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 13 remaining) [2024-11-08 17:48:41,951 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 13 remaining) [2024-11-08 17:48:41,952 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 13 remaining) [2024-11-08 17:48:41,952 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 13 remaining) [2024-11-08 17:48:41,952 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 17:48:41,953 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-08 17:48:41,960 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-08 17:48:41,960 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-08 17:48:41,997 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-08 17:48:42,006 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 86 places, 99 transitions, 214 flow [2024-11-08 17:48:42,035 INFO L124 PetriNetUnfolderBase]: 28/163 cut-off events. [2024-11-08 17:48:42,036 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-08 17:48:42,038 INFO L83 FinitePrefix]: Finished finitePrefix Result has 175 conditions, 163 events. 28/163 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 552 event pairs, 0 based on Foata normal form. 0/113 useless extension candidates. Maximal degree in co-relation 100. Up to 8 conditions per place. [2024-11-08 17:48:42,038 INFO L82 GeneralOperation]: Start removeDead. Operand has 86 places, 99 transitions, 214 flow [2024-11-08 17:48:42,041 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 86 places, 99 transitions, 214 flow [2024-11-08 17:48:42,042 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 17:48:42,044 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;@309d5237, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 17:48:42,044 INFO L334 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2024-11-08 17:48:42,048 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 17:48:42,048 INFO L124 PetriNetUnfolderBase]: 1/14 cut-off events. [2024-11-08 17:48:42,048 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 17:48:42,048 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:48:42,048 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-08 17:48:42,049 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-08 17:48:42,049 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:48:42,050 INFO L85 PathProgramCache]: Analyzing trace with hash 745957124, now seen corresponding path program 1 times [2024-11-08 17:48:42,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:48:42,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371591649] [2024-11-08 17:48:42,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:48:42,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:48:42,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:48:42,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:48:42,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:48:42,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371591649] [2024-11-08 17:48:42,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371591649] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:48:42,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:48:42,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 17:48:42,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122794078] [2024-11-08 17:48:42,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:48:42,184 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 17:48:42,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:48:42,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 17:48:42,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:48:42,210 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 99 [2024-11-08 17:48:42,211 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 99 transitions, 214 flow. Second operand has 4 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 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) [2024-11-08 17:48:42,211 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:48:42,211 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 99 [2024-11-08 17:48:42,213 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:48:43,819 INFO L124 PetriNetUnfolderBase]: 4544/9683 cut-off events. [2024-11-08 17:48:43,820 INFO L125 PetriNetUnfolderBase]: For 88/88 co-relation queries the response was YES. [2024-11-08 17:48:43,842 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16748 conditions, 9683 events. 4544/9683 cut-off events. For 88/88 co-relation queries the response was YES. Maximal size of possible extension queue 290. Compared 81871 event pairs, 2024 based on Foata normal form. 1768/10629 useless extension candidates. Maximal degree in co-relation 1334. Up to 6961 conditions per place. [2024-11-08 17:48:43,889 INFO L140 encePairwiseOnDemand]: 78/99 looper letters, 66 selfloop transitions, 3 changer transitions 0/110 dead transitions. [2024-11-08 17:48:43,889 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 110 transitions, 374 flow [2024-11-08 17:48:43,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 17:48:43,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 17:48:43,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 263 transitions. [2024-11-08 17:48:43,891 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6641414141414141 [2024-11-08 17:48:43,892 INFO L175 Difference]: Start difference. First operand has 86 places, 99 transitions, 214 flow. Second operand 4 states and 263 transitions. [2024-11-08 17:48:43,892 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 110 transitions, 374 flow [2024-11-08 17:48:43,896 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 110 transitions, 374 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 17:48:43,898 INFO L231 Difference]: Finished difference. Result has 91 places, 87 transitions, 212 flow [2024-11-08 17:48:43,898 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=186, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=212, PETRI_PLACES=91, PETRI_TRANSITIONS=87} [2024-11-08 17:48:43,899 INFO L277 CegarLoopForPetriNet]: 86 programPoint places, 5 predicate places. [2024-11-08 17:48:43,900 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 87 transitions, 212 flow [2024-11-08 17:48:43,900 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 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) [2024-11-08 17:48:43,900 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:48:43,900 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:48:43,900 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 17:48:43,901 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-08 17:48:43,902 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:48:43,902 INFO L85 PathProgramCache]: Analyzing trace with hash -1647147035, now seen corresponding path program 1 times [2024-11-08 17:48:43,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:48:43,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99707774] [2024-11-08 17:48:43,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:48:43,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:48:43,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:48:44,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:48:44,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:48:44,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99707774] [2024-11-08 17:48:44,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99707774] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:48:44,190 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:48:44,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 17:48:44,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864806915] [2024-11-08 17:48:44,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:48:44,191 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 17:48:44,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:48:44,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 17:48:44,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:48:44,199 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 99 [2024-11-08 17:48:44,200 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 87 transitions, 212 flow. Second operand has 4 states, 4 states have (on average 46.75) internal successors, (187), 4 states have internal predecessors, (187), 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) [2024-11-08 17:48:44,200 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:48:44,200 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 99 [2024-11-08 17:48:44,200 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:48:45,469 INFO L124 PetriNetUnfolderBase]: 3480/7556 cut-off events. [2024-11-08 17:48:45,469 INFO L125 PetriNetUnfolderBase]: For 253/586 co-relation queries the response was YES. [2024-11-08 17:48:45,482 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13353 conditions, 7556 events. 3480/7556 cut-off events. For 253/586 co-relation queries the response was YES. Maximal size of possible extension queue 245. Compared 62525 event pairs, 1096 based on Foata normal form. 158/7292 useless extension candidates. Maximal degree in co-relation 13251. Up to 4836 conditions per place. [2024-11-08 17:48:45,517 INFO L140 encePairwiseOnDemand]: 93/99 looper letters, 91 selfloop transitions, 6 changer transitions 0/143 dead transitions. [2024-11-08 17:48:45,517 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 143 transitions, 543 flow [2024-11-08 17:48:45,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 17:48:45,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-08 17:48:45,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 323 transitions. [2024-11-08 17:48:45,520 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6525252525252525 [2024-11-08 17:48:45,520 INFO L175 Difference]: Start difference. First operand has 91 places, 87 transitions, 212 flow. Second operand 5 states and 323 transitions. [2024-11-08 17:48:45,520 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 143 transitions, 543 flow [2024-11-08 17:48:45,523 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 143 transitions, 539 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-08 17:48:45,525 INFO L231 Difference]: Finished difference. Result has 97 places, 92 transitions, 254 flow [2024-11-08 17:48:45,526 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=210, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=254, PETRI_PLACES=97, PETRI_TRANSITIONS=92} [2024-11-08 17:48:45,526 INFO L277 CegarLoopForPetriNet]: 86 programPoint places, 11 predicate places. [2024-11-08 17:48:45,527 INFO L471 AbstractCegarLoop]: Abstraction has has 97 places, 92 transitions, 254 flow [2024-11-08 17:48:45,527 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 46.75) internal successors, (187), 4 states have internal predecessors, (187), 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) [2024-11-08 17:48:45,527 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:48:45,527 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-08 17:48:45,528 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 17:48:45,528 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-08 17:48:45,528 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:48:45,528 INFO L85 PathProgramCache]: Analyzing trace with hash 1130830963, now seen corresponding path program 1 times [2024-11-08 17:48:45,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:48:45,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910286926] [2024-11-08 17:48:45,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:48:45,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:48:45,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:48:45,618 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:48:45,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:48:45,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910286926] [2024-11-08 17:48:45,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910286926] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:48:45,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2038251954] [2024-11-08 17:48:45,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:48:45,620 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:48:45,620 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca071c5b-c8e6-4c58-93d3-79e4c0d2f317/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:48:45,622 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca071c5b-c8e6-4c58-93d3-79e4c0d2f317/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:48:45,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca071c5b-c8e6-4c58-93d3-79e4c0d2f317/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 17:48:45,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:48:45,721 INFO L255 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 17:48:45,723 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:48:45,793 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:48:45,794 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 17:48:45,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2038251954] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:48:45,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 17:48:45,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-08 17:48:45,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921776195] [2024-11-08 17:48:45,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:48:45,796 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 17:48:45,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:48:45,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 17:48:45,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-08 17:48:45,817 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 99 [2024-11-08 17:48:45,818 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 92 transitions, 254 flow. Second operand has 6 states, 6 states have (on average 42.5) internal successors, (255), 6 states have internal predecessors, (255), 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) [2024-11-08 17:48:45,818 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:48:45,818 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 99 [2024-11-08 17:48:45,818 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:48:47,362 INFO L124 PetriNetUnfolderBase]: 4614/9001 cut-off events. [2024-11-08 17:48:47,363 INFO L125 PetriNetUnfolderBase]: For 1605/1605 co-relation queries the response was YES. [2024-11-08 17:48:47,393 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17976 conditions, 9001 events. 4614/9001 cut-off events. For 1605/1605 co-relation queries the response was YES. Maximal size of possible extension queue 263. Compared 71403 event pairs, 448 based on Foata normal form. 152/8648 useless extension candidates. Maximal degree in co-relation 16696. Up to 4247 conditions per place. [2024-11-08 17:48:47,443 INFO L140 encePairwiseOnDemand]: 94/99 looper letters, 121 selfloop transitions, 6 changer transitions 0/168 dead transitions. [2024-11-08 17:48:47,444 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 168 transitions, 718 flow [2024-11-08 17:48:47,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 17:48:47,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 17:48:47,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 359 transitions. [2024-11-08 17:48:47,449 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6043771043771043 [2024-11-08 17:48:47,451 INFO L175 Difference]: Start difference. First operand has 97 places, 92 transitions, 254 flow. Second operand 6 states and 359 transitions. [2024-11-08 17:48:47,452 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 168 transitions, 718 flow [2024-11-08 17:48:47,462 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 168 transitions, 718 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 17:48:47,466 INFO L231 Difference]: Finished difference. Result has 101 places, 91 transitions, 262 flow [2024-11-08 17:48:47,467 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=250, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=262, PETRI_PLACES=101, PETRI_TRANSITIONS=91} [2024-11-08 17:48:47,468 INFO L277 CegarLoopForPetriNet]: 86 programPoint places, 15 predicate places. [2024-11-08 17:48:47,469 INFO L471 AbstractCegarLoop]: Abstraction has has 101 places, 91 transitions, 262 flow [2024-11-08 17:48:47,469 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 42.5) internal successors, (255), 6 states have internal predecessors, (255), 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) [2024-11-08 17:48:47,469 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:48:47,469 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-08 17:48:47,493 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca071c5b-c8e6-4c58-93d3-79e4c0d2f317/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 17:48:47,675 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca071c5b-c8e6-4c58-93d3-79e4c0d2f317/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:48:47,675 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-08 17:48:47,676 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:48:47,676 INFO L85 PathProgramCache]: Analyzing trace with hash 696021968, now seen corresponding path program 1 times [2024-11-08 17:48:47,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:48:47,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597058787] [2024-11-08 17:48:47,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:48:47,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:48:47,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:48:47,843 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-08 17:48:47,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:48:47,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597058787] [2024-11-08 17:48:47,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597058787] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:48:47,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:48:47,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:48:47,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509002991] [2024-11-08 17:48:47,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:48:47,845 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 17:48:47,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:48:47,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 17:48:47,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:48:47,864 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 99 [2024-11-08 17:48:47,865 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 91 transitions, 262 flow. Second operand has 4 states, 4 states have (on average 42.75) internal successors, (171), 4 states have internal predecessors, (171), 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) [2024-11-08 17:48:47,865 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:48:47,866 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 99 [2024-11-08 17:48:47,866 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:48:49,232 INFO L124 PetriNetUnfolderBase]: 4461/8712 cut-off events. [2024-11-08 17:48:49,233 INFO L125 PetriNetUnfolderBase]: For 2282/2282 co-relation queries the response was YES. [2024-11-08 17:48:49,330 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17729 conditions, 8712 events. 4461/8712 cut-off events. For 2282/2282 co-relation queries the response was YES. Maximal size of possible extension queue 254. Compared 68492 event pairs, 502 based on Foata normal form. 316/8689 useless extension candidates. Maximal degree in co-relation 16464. Up to 5155 conditions per place. [2024-11-08 17:48:49,371 INFO L140 encePairwiseOnDemand]: 93/99 looper letters, 98 selfloop transitions, 6 changer transitions 0/144 dead transitions. [2024-11-08 17:48:49,372 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 144 transitions, 618 flow [2024-11-08 17:48:49,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 17:48:49,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 17:48:49,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 249 transitions. [2024-11-08 17:48:49,374 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6287878787878788 [2024-11-08 17:48:49,374 INFO L175 Difference]: Start difference. First operand has 101 places, 91 transitions, 262 flow. Second operand 4 states and 249 transitions. [2024-11-08 17:48:49,375 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 144 transitions, 618 flow [2024-11-08 17:48:49,380 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 144 transitions, 608 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-11-08 17:48:49,382 INFO L231 Difference]: Finished difference. Result has 100 places, 90 transitions, 264 flow [2024-11-08 17:48:49,382 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=244, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=264, PETRI_PLACES=100, PETRI_TRANSITIONS=90} [2024-11-08 17:48:49,383 INFO L277 CegarLoopForPetriNet]: 86 programPoint places, 14 predicate places. [2024-11-08 17:48:49,383 INFO L471 AbstractCegarLoop]: Abstraction has has 100 places, 90 transitions, 264 flow [2024-11-08 17:48:49,384 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.75) internal successors, (171), 4 states have internal predecessors, (171), 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) [2024-11-08 17:48:49,384 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:48:49,384 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1] [2024-11-08 17:48:49,384 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 17:48:49,385 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-08 17:48:49,385 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:48:49,385 INFO L85 PathProgramCache]: Analyzing trace with hash -911206031, now seen corresponding path program 1 times [2024-11-08 17:48:49,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:48:49,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167956047] [2024-11-08 17:48:49,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:48:49,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:48:49,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 17:48:49,404 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 17:48:49,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 17:48:49,421 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 17:48:49,421 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 17:48:49,421 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 17 remaining) [2024-11-08 17:48:49,422 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 17 remaining) [2024-11-08 17:48:49,422 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 17 remaining) [2024-11-08 17:48:49,422 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 17 remaining) [2024-11-08 17:48:49,422 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 17 remaining) [2024-11-08 17:48:49,422 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 17 remaining) [2024-11-08 17:48:49,423 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 17 remaining) [2024-11-08 17:48:49,423 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 17 remaining) [2024-11-08 17:48:49,423 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 17 remaining) [2024-11-08 17:48:49,423 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 17 remaining) [2024-11-08 17:48:49,423 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 17 remaining) [2024-11-08 17:48:49,423 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 17 remaining) [2024-11-08 17:48:49,424 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 17 remaining) [2024-11-08 17:48:49,424 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 17 remaining) [2024-11-08 17:48:49,424 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 17 remaining) [2024-11-08 17:48:49,425 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 17 remaining) [2024-11-08 17:48:49,425 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 17 remaining) [2024-11-08 17:48:49,425 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 17:48:49,425 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-11-08 17:48:49,426 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-08 17:48:49,426 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-08 17:48:49,456 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-08 17:48:49,459 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 114 places, 132 transitions, 291 flow [2024-11-08 17:48:49,489 INFO L124 PetriNetUnfolderBase]: 46/264 cut-off events. [2024-11-08 17:48:49,489 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-11-08 17:48:49,491 INFO L83 FinitePrefix]: Finished finitePrefix Result has 289 conditions, 264 events. 46/264 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 996 event pairs, 1 based on Foata normal form. 0/182 useless extension candidates. Maximal degree in co-relation 178. Up to 16 conditions per place. [2024-11-08 17:48:49,491 INFO L82 GeneralOperation]: Start removeDead. Operand has 114 places, 132 transitions, 291 flow [2024-11-08 17:48:49,494 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 114 places, 132 transitions, 291 flow [2024-11-08 17:48:49,495 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 17:48:49,496 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;@309d5237, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 17:48:49,496 INFO L334 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2024-11-08 17:48:49,498 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 17:48:49,499 INFO L124 PetriNetUnfolderBase]: 1/14 cut-off events. [2024-11-08 17:48:49,499 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 17:48:49,499 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:48:49,499 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-08 17:48:49,499 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-11-08 17:48:49,499 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:48:49,500 INFO L85 PathProgramCache]: Analyzing trace with hash 356035811, now seen corresponding path program 1 times [2024-11-08 17:48:49,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:48:49,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319978874] [2024-11-08 17:48:49,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:48:49,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:48:49,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:48:49,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:48:49,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:48:49,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319978874] [2024-11-08 17:48:49,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319978874] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:48:49,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:48:49,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 17:48:49,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055271463] [2024-11-08 17:48:49,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:48:49,563 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 17:48:49,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:48:49,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 17:48:49,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:48:49,582 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 132 [2024-11-08 17:48:49,583 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 132 transitions, 291 flow. Second operand has 4 states, 4 states have (on average 56.25) internal successors, (225), 4 states have internal predecessors, (225), 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) [2024-11-08 17:48:49,583 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:48:49,583 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 132 [2024-11-08 17:48:49,583 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:49:04,563 INFO L124 PetriNetUnfolderBase]: 83801/151594 cut-off events. [2024-11-08 17:49:04,563 INFO L125 PetriNetUnfolderBase]: For 1943/1943 co-relation queries the response was YES. [2024-11-08 17:49:04,850 INFO L83 FinitePrefix]: Finished finitePrefix Result has 267486 conditions, 151594 events. 83801/151594 cut-off events. For 1943/1943 co-relation queries the response was YES. Maximal size of possible extension queue 3343. Compared 1601466 event pairs, 52900 based on Foata normal form. 31753/172338 useless extension candidates. Maximal degree in co-relation 17376. Up to 114730 conditions per place. [2024-11-08 17:49:05,600 INFO L140 encePairwiseOnDemand]: 105/132 looper letters, 79 selfloop transitions, 3 changer transitions 0/137 dead transitions. [2024-11-08 17:49:05,601 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 137 transitions, 465 flow [2024-11-08 17:49:05,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 17:49:05,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 17:49:05,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 338 transitions. [2024-11-08 17:49:05,605 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6401515151515151 [2024-11-08 17:49:05,605 INFO L175 Difference]: Start difference. First operand has 114 places, 132 transitions, 291 flow. Second operand 4 states and 338 transitions. [2024-11-08 17:49:05,605 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 137 transitions, 465 flow [2024-11-08 17:49:05,610 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 137 transitions, 465 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 17:49:05,615 INFO L231 Difference]: Finished difference. Result has 119 places, 114 transitions, 277 flow [2024-11-08 17:49:05,616 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=251, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=277, PETRI_PLACES=119, PETRI_TRANSITIONS=114} [2024-11-08 17:49:05,616 INFO L277 CegarLoopForPetriNet]: 114 programPoint places, 5 predicate places. [2024-11-08 17:49:05,616 INFO L471 AbstractCegarLoop]: Abstraction has has 119 places, 114 transitions, 277 flow [2024-11-08 17:49:05,617 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 56.25) internal successors, (225), 4 states have internal predecessors, (225), 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) [2024-11-08 17:49:05,617 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:49:05,617 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:49:05,617 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 17:49:05,617 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-11-08 17:49:05,618 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:49:05,618 INFO L85 PathProgramCache]: Analyzing trace with hash 1574163944, now seen corresponding path program 1 times [2024-11-08 17:49:05,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:49:05,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931262828] [2024-11-08 17:49:05,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:49:05,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:49:05,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:49:06,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:49:06,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:49:06,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931262828] [2024-11-08 17:49:06,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1931262828] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:49:06,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:49:06,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 17:49:06,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351359617] [2024-11-08 17:49:06,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:49:06,026 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 17:49:06,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:49:06,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 17:49:06,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:49:06,031 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 132 [2024-11-08 17:49:06,031 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 114 transitions, 277 flow. Second operand has 4 states, 4 states have (on average 60.75) internal successors, (243), 4 states have internal predecessors, (243), 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) [2024-11-08 17:49:06,032 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:49:06,032 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 132 [2024-11-08 17:49:06,032 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:49:17,843 INFO L124 PetriNetUnfolderBase]: 69222/122954 cut-off events. [2024-11-08 17:49:17,843 INFO L125 PetriNetUnfolderBase]: For 4250/8765 co-relation queries the response was YES. [2024-11-08 17:49:18,095 INFO L83 FinitePrefix]: Finished finitePrefix Result has 222310 conditions, 122954 events. 69222/122954 cut-off events. For 4250/8765 co-relation queries the response was YES. Maximal size of possible extension queue 2845. Compared 1246880 event pairs, 28005 based on Foata normal form. 1813/118428 useless extension candidates. Maximal degree in co-relation 222207. Up to 88693 conditions per place. [2024-11-08 17:49:18,689 INFO L140 encePairwiseOnDemand]: 125/132 looper letters, 129 selfloop transitions, 8 changer transitions 0/197 dead transitions. [2024-11-08 17:49:18,689 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 197 transitions, 766 flow [2024-11-08 17:49:18,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 17:49:18,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-08 17:49:18,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 433 transitions. [2024-11-08 17:49:18,692 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.656060606060606 [2024-11-08 17:49:18,692 INFO L175 Difference]: Start difference. First operand has 119 places, 114 transitions, 277 flow. Second operand 5 states and 433 transitions. [2024-11-08 17:49:18,692 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 197 transitions, 766 flow [2024-11-08 17:49:18,705 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 197 transitions, 762 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-08 17:49:18,709 INFO L231 Difference]: Finished difference. Result has 125 places, 121 transitions, 336 flow [2024-11-08 17:49:18,709 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=275, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=336, PETRI_PLACES=125, PETRI_TRANSITIONS=121} [2024-11-08 17:49:18,710 INFO L277 CegarLoopForPetriNet]: 114 programPoint places, 11 predicate places. [2024-11-08 17:49:18,710 INFO L471 AbstractCegarLoop]: Abstraction has has 125 places, 121 transitions, 336 flow [2024-11-08 17:49:18,711 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 60.75) internal successors, (243), 4 states have internal predecessors, (243), 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) [2024-11-08 17:49:18,711 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:49:18,711 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-08 17:49:18,711 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 17:49:18,712 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-11-08 17:49:18,712 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:49:18,712 INFO L85 PathProgramCache]: Analyzing trace with hash 502367473, now seen corresponding path program 1 times [2024-11-08 17:49:18,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:49:18,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411990542] [2024-11-08 17:49:18,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:49:18,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:49:18,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:49:18,807 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:49:18,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:49:18,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411990542] [2024-11-08 17:49:18,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411990542] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:49:18,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2127382778] [2024-11-08 17:49:18,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:49:18,808 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:49:18,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca071c5b-c8e6-4c58-93d3-79e4c0d2f317/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:49:18,810 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca071c5b-c8e6-4c58-93d3-79e4c0d2f317/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:49:18,813 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca071c5b-c8e6-4c58-93d3-79e4c0d2f317/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 17:49:18,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:49:18,922 INFO L255 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 17:49:18,924 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:49:18,975 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:49:18,975 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 17:49:18,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2127382778] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:49:18,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 17:49:18,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-08 17:49:18,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129565599] [2024-11-08 17:49:18,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:49:18,976 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 17:49:18,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:49:18,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 17:49:18,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-08 17:49:19,003 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 132 [2024-11-08 17:49:19,004 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 121 transitions, 336 flow. Second operand has 6 states, 6 states have (on average 56.5) internal successors, (339), 6 states have internal predecessors, (339), 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) [2024-11-08 17:49:19,004 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:49:19,004 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 132 [2024-11-08 17:49:19,004 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand