./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_37-indirect_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56ae5b9c-5339-4866-8e53-6020da434f8d/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56ae5b9c-5339-4866-8e53-6020da434f8d/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56ae5b9c-5339-4866-8e53-6020da434f8d/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56ae5b9c-5339-4866-8e53-6020da434f8d/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_37-indirect_racing.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56ae5b9c-5339-4866-8e53-6020da434f8d/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56ae5b9c-5339-4866-8e53-6020da434f8d/bin/uautomizer-verify-84ZbGMXZE1 --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 78ae3f0dde82ce244d0cacebded5945a3f759d1f5aeba1d4553a1f59ef165385 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 10:24:15,140 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 10:24:15,199 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56ae5b9c-5339-4866-8e53-6020da434f8d/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-12-02 10:24:15,204 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 10:24:15,204 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 10:24:15,228 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 10:24:15,228 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 10:24:15,229 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 10:24:15,229 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 10:24:15,229 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 10:24:15,229 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 10:24:15,229 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 10:24:15,229 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 10:24:15,230 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 10:24:15,230 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 10:24:15,230 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 10:24:15,230 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 10:24:15,230 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 10:24:15,230 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 10:24:15,230 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 10:24:15,230 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 10:24:15,230 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 10:24:15,230 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 10:24:15,231 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 10:24:15,231 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-02 10:24:15,231 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-02 10:24:15,231 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 10:24:15,231 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 10:24:15,231 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 10:24:15,231 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 10:24:15,231 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 10:24:15,231 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 10:24:15,231 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 10:24:15,231 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 10:24:15,231 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 10:24:15,232 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 10:24:15,232 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 10:24:15,232 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 10:24:15,232 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 10:24:15,232 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 10:24:15,232 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 10:24:15,232 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 10:24:15,232 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 10:24:15,232 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 10:24:15,232 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 10:24:15,232 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 10:24:15,232 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 10:24:15,232 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 10:24:15,233 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 10:24:15,233 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 10:24:15,233 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56ae5b9c-5339-4866-8e53-6020da434f8d/bin/uautomizer-verify-84ZbGMXZE1 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 -> 78ae3f0dde82ce244d0cacebded5945a3f759d1f5aeba1d4553a1f59ef165385 [2024-12-02 10:24:15,468 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 10:24:15,476 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 10:24:15,478 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 10:24:15,479 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 10:24:15,479 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 10:24:15,480 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56ae5b9c-5339-4866-8e53-6020da434f8d/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/goblint-regression/28-race_reach_37-indirect_racing.i [2024-12-02 10:24:18,177 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56ae5b9c-5339-4866-8e53-6020da434f8d/bin/uautomizer-verify-84ZbGMXZE1/data/0f9461014/236d1bd558f24954a01ee097a0eafe0b/FLAG62ddd5f8c [2024-12-02 10:24:18,428 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 10:24:18,429 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56ae5b9c-5339-4866-8e53-6020da434f8d/sv-benchmarks/c/goblint-regression/28-race_reach_37-indirect_racing.i [2024-12-02 10:24:18,442 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56ae5b9c-5339-4866-8e53-6020da434f8d/bin/uautomizer-verify-84ZbGMXZE1/data/0f9461014/236d1bd558f24954a01ee097a0eafe0b/FLAG62ddd5f8c [2024-12-02 10:24:18,458 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56ae5b9c-5339-4866-8e53-6020da434f8d/bin/uautomizer-verify-84ZbGMXZE1/data/0f9461014/236d1bd558f24954a01ee097a0eafe0b [2024-12-02 10:24:18,461 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 10:24:18,463 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 10:24:18,464 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 10:24:18,464 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 10:24:18,470 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 10:24:18,470 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:24:18" (1/1) ... [2024-12-02 10:24:18,471 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24569da9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:24:18, skipping insertion in model container [2024-12-02 10:24:18,472 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:24:18" (1/1) ... [2024-12-02 10:24:18,501 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 10:24:18,800 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 10:24:18,817 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 10:24:18,857 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 10:24:18,893 INFO L204 MainTranslator]: Completed translation [2024-12-02 10:24:18,893 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:24:18 WrapperNode [2024-12-02 10:24:18,893 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 10:24:18,894 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 10:24:18,894 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 10:24:18,894 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 10:24:18,900 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:24:18" (1/1) ... [2024-12-02 10:24:18,911 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:24:18" (1/1) ... [2024-12-02 10:24:18,928 INFO L138 Inliner]: procedures = 171, calls = 41, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 81 [2024-12-02 10:24:18,929 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 10:24:18,929 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 10:24:18,929 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 10:24:18,929 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 10:24:18,938 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:24:18" (1/1) ... [2024-12-02 10:24:18,938 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:24:18" (1/1) ... [2024-12-02 10:24:18,941 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:24:18" (1/1) ... [2024-12-02 10:24:18,955 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]. [2024-12-02 10:24:18,955 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:24:18" (1/1) ... [2024-12-02 10:24:18,955 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:24:18" (1/1) ... [2024-12-02 10:24:18,963 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:24:18" (1/1) ... [2024-12-02 10:24:18,963 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:24:18" (1/1) ... [2024-12-02 10:24:18,967 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:24:18" (1/1) ... [2024-12-02 10:24:18,969 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:24:18" (1/1) ... [2024-12-02 10:24:18,970 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:24:18" (1/1) ... [2024-12-02 10:24:18,972 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 10:24:18,973 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 10:24:18,973 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 10:24:18,973 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 10:24:18,974 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:24:18" (1/1) ... [2024-12-02 10:24:18,980 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 10:24:18,991 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56ae5b9c-5339-4866-8e53-6020da434f8d/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:24:19,004 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56ae5b9c-5339-4866-8e53-6020da434f8d/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 10:24:19,006 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56ae5b9c-5339-4866-8e53-6020da434f8d/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 10:24:19,031 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-12-02 10:24:19,031 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-12-02 10:24:19,031 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-12-02 10:24:19,031 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-12-02 10:24:19,031 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-12-02 10:24:19,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-12-02 10:24:19,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-12-02 10:24:19,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-12-02 10:24:19,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-12-02 10:24:19,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-12-02 10:24:19,031 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-12-02 10:24:19,031 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 10:24:19,031 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-12-02 10:24:19,032 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-12-02 10:24:19,032 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-12-02 10:24:19,032 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-02 10:24:19,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 10:24:19,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-02 10:24:19,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-12-02 10:24:19,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-12-02 10:24:19,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-12-02 10:24:19,033 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-12-02 10:24:19,033 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 10:24:19,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 10:24:19,034 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-12-02 10:24:19,155 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 10:24:19,156 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 10:24:19,391 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-12-02 10:24:19,391 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 10:24:19,565 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 10:24:19,565 INFO L312 CfgBuilder]: Removed 6 assume(true) statements. [2024-12-02 10:24:19,566 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:24:19 BoogieIcfgContainer [2024-12-02 10:24:19,566 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 10:24:19,568 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 10:24:19,568 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 10:24:19,573 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 10:24:19,573 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 10:24:18" (1/3) ... [2024-12-02 10:24:19,573 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1342982e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 10:24:19, skipping insertion in model container [2024-12-02 10:24:19,574 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:24:18" (2/3) ... [2024-12-02 10:24:19,574 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1342982e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 10:24:19, skipping insertion in model container [2024-12-02 10:24:19,574 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:24:19" (3/3) ... [2024-12-02 10:24:19,575 INFO L128 eAbstractionObserver]: Analyzing ICFG 28-race_reach_37-indirect_racing.i [2024-12-02 10:24:19,592 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 10:24:19,593 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 28-race_reach_37-indirect_racing.i that has 2 procedures, 48 locations, 1 initial locations, 6 loop locations, and 8 error locations. [2024-12-02 10:24:19,594 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-12-02 10:24:19,639 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-12-02 10:24:19,676 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 51 places, 57 transitions, 121 flow [2024-12-02 10:24:19,716 INFO L124 PetriNetUnfolderBase]: 11/69 cut-off events. [2024-12-02 10:24:19,718 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-12-02 10:24:19,722 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74 conditions, 69 events. 11/69 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 188 event pairs, 0 based on Foata normal form. 0/47 useless extension candidates. Maximal degree in co-relation 48. Up to 4 conditions per place. [2024-12-02 10:24:19,723 INFO L82 GeneralOperation]: Start removeDead. Operand has 51 places, 57 transitions, 121 flow [2024-12-02 10:24:19,726 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 51 places, 56 transitions, 119 flow [2024-12-02 10:24:19,735 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 10:24:19,747 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;@2a628e1e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 10:24:19,747 INFO L334 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2024-12-02 10:24:19,753 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-12-02 10:24:19,754 INFO L124 PetriNetUnfolderBase]: 0/11 cut-off events. [2024-12-02 10:24:19,754 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-12-02 10:24:19,754 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 10:24:19,754 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-12-02 10:24:19,755 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)] === [2024-12-02 10:24:19,761 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:24:19,761 INFO L85 PathProgramCache]: Analyzing trace with hash 362791463, now seen corresponding path program 1 times [2024-12-02 10:24:19,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:24:19,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568968463] [2024-12-02 10:24:19,769 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:24:19,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:24:19,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:24:20,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:24:20,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:24:20,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568968463] [2024-12-02 10:24:20,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1568968463] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:24:20,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:24:20,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 10:24:20,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862756347] [2024-12-02 10:24:20,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:24:20,016 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 10:24:20,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:24:20,041 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 10:24:20,041 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 10:24:20,049 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 57 [2024-12-02 10:24:20,052 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 56 transitions, 119 flow. Second operand has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 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) [2024-12-02 10:24:20,052 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 10:24:20,052 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 57 [2024-12-02 10:24:20,053 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 10:24:20,253 INFO L124 PetriNetUnfolderBase]: 99/301 cut-off events. [2024-12-02 10:24:20,253 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-12-02 10:24:20,254 INFO L83 FinitePrefix]: Finished finitePrefix Result has 529 conditions, 301 events. 99/301 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1413 event pairs, 0 based on Foata normal form. 64/334 useless extension candidates. Maximal degree in co-relation 499. Up to 186 conditions per place. [2024-12-02 10:24:20,257 INFO L140 encePairwiseOnDemand]: 43/57 looper letters, 43 selfloop transitions, 3 changer transitions 0/69 dead transitions. [2024-12-02 10:24:20,257 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 69 transitions, 237 flow [2024-12-02 10:24:20,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 10:24:20,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-12-02 10:24:20,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 161 transitions. [2024-12-02 10:24:20,270 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.706140350877193 [2024-12-02 10:24:20,272 INFO L175 Difference]: Start difference. First operand has 51 places, 56 transitions, 119 flow. Second operand 4 states and 161 transitions. [2024-12-02 10:24:20,273 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 69 transitions, 237 flow [2024-12-02 10:24:20,277 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 69 transitions, 237 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-12-02 10:24:20,280 INFO L231 Difference]: Finished difference. Result has 53 places, 46 transitions, 109 flow [2024-12-02 10:24:20,282 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=99, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=109, PETRI_PLACES=53, PETRI_TRANSITIONS=46} [2024-12-02 10:24:20,286 INFO L279 CegarLoopForPetriNet]: 51 programPoint places, 2 predicate places. [2024-12-02 10:24:20,286 INFO L471 AbstractCegarLoop]: Abstraction has has 53 places, 46 transitions, 109 flow [2024-12-02 10:24:20,286 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 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) [2024-12-02 10:24:20,286 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 10:24:20,286 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2024-12-02 10:24:20,286 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 10:24:20,287 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)] === [2024-12-02 10:24:20,287 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:24:20,287 INFO L85 PathProgramCache]: Analyzing trace with hash 1783110975, now seen corresponding path program 1 times [2024-12-02 10:24:20,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:24:20,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169313429] [2024-12-02 10:24:20,287 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:24:20,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:24:20,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 10:24:20,313 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 10:24:20,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 10:24:20,345 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-12-02 10:24:20,345 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-02 10:24:20,347 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 13 remaining) [2024-12-02 10:24:20,349 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 13 remaining) [2024-12-02 10:24:20,349 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 13 remaining) [2024-12-02 10:24:20,349 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 13 remaining) [2024-12-02 10:24:20,349 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 13 remaining) [2024-12-02 10:24:20,349 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 13 remaining) [2024-12-02 10:24:20,349 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 13 remaining) [2024-12-02 10:24:20,349 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 13 remaining) [2024-12-02 10:24:20,350 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 13 remaining) [2024-12-02 10:24:20,350 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 13 remaining) [2024-12-02 10:24:20,350 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 13 remaining) [2024-12-02 10:24:20,350 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 13 remaining) [2024-12-02 10:24:20,350 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 13 remaining) [2024-12-02 10:24:20,350 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 10:24:20,350 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2024-12-02 10:24:20,353 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-12-02 10:24:20,353 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-12-02 10:24:20,378 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-12-02 10:24:20,380 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 79 places, 90 transitions, 196 flow [2024-12-02 10:24:20,402 INFO L124 PetriNetUnfolderBase]: 21/133 cut-off events. [2024-12-02 10:24:20,402 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-12-02 10:24:20,404 INFO L83 FinitePrefix]: Finished finitePrefix Result has 145 conditions, 133 events. 21/133 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 478 event pairs, 0 based on Foata normal form. 0/90 useless extension candidates. Maximal degree in co-relation 88. Up to 6 conditions per place. [2024-12-02 10:24:20,404 INFO L82 GeneralOperation]: Start removeDead. Operand has 79 places, 90 transitions, 196 flow [2024-12-02 10:24:20,406 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 79 places, 90 transitions, 196 flow [2024-12-02 10:24:20,408 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 10:24:20,408 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;@2a628e1e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 10:24:20,409 INFO L334 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2024-12-02 10:24:20,425 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-12-02 10:24:20,426 INFO L124 PetriNetUnfolderBase]: 0/11 cut-off events. [2024-12-02 10:24:20,426 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-12-02 10:24:20,426 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 10:24:20,426 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-12-02 10:24:20,426 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)] === [2024-12-02 10:24:20,426 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:24:20,427 INFO L85 PathProgramCache]: Analyzing trace with hash 448708704, now seen corresponding path program 1 times [2024-12-02 10:24:20,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:24:20,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678070601] [2024-12-02 10:24:20,427 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:24:20,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:24:20,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:24:20,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:24:20,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:24:20,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678070601] [2024-12-02 10:24:20,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678070601] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:24:20,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:24:20,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 10:24:20,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246962149] [2024-12-02 10:24:20,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:24:20,498 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 10:24:20,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:24:20,499 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 10:24:20,499 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 10:24:20,505 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 90 [2024-12-02 10:24:20,505 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 90 transitions, 196 flow. Second operand has 4 states, 4 states have (on average 38.25) internal successors, (153), 4 states have internal predecessors, (153), 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) [2024-12-02 10:24:20,505 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 10:24:20,505 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 90 [2024-12-02 10:24:20,505 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 10:24:21,327 INFO L124 PetriNetUnfolderBase]: 3203/7079 cut-off events. [2024-12-02 10:24:21,327 INFO L125 PetriNetUnfolderBase]: For 92/92 co-relation queries the response was YES. [2024-12-02 10:24:21,341 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12264 conditions, 7079 events. 3203/7079 cut-off events. For 92/92 co-relation queries the response was YES. Maximal size of possible extension queue 244. Compared 59623 event pairs, 1496 based on Foata normal form. 1367/7624 useless extension candidates. Maximal degree in co-relation 977. Up to 5081 conditions per place. [2024-12-02 10:24:21,368 INFO L140 encePairwiseOnDemand]: 70/90 looper letters, 61 selfloop transitions, 3 changer transitions 0/101 dead transitions. [2024-12-02 10:24:21,368 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 101 transitions, 346 flow [2024-12-02 10:24:21,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 10:24:21,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-12-02 10:24:21,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 241 transitions. [2024-12-02 10:24:21,371 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6694444444444444 [2024-12-02 10:24:21,371 INFO L175 Difference]: Start difference. First operand has 79 places, 90 transitions, 196 flow. Second operand 4 states and 241 transitions. [2024-12-02 10:24:21,371 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 101 transitions, 346 flow [2024-12-02 10:24:21,373 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 101 transitions, 346 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-12-02 10:24:21,375 INFO L231 Difference]: Finished difference. Result has 84 places, 78 transitions, 192 flow [2024-12-02 10:24:21,375 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=168, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=192, PETRI_PLACES=84, PETRI_TRANSITIONS=78} [2024-12-02 10:24:21,376 INFO L279 CegarLoopForPetriNet]: 79 programPoint places, 5 predicate places. [2024-12-02 10:24:21,376 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 78 transitions, 192 flow [2024-12-02 10:24:21,376 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.25) internal successors, (153), 4 states have internal predecessors, (153), 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) [2024-12-02 10:24:21,376 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 10:24:21,376 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:24:21,377 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 10:24:21,377 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)] === [2024-12-02 10:24:21,377 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:24:21,377 INFO L85 PathProgramCache]: Analyzing trace with hash 7255278, now seen corresponding path program 1 times [2024-12-02 10:24:21,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:24:21,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665540448] [2024-12-02 10:24:21,378 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:24:21,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:24:21,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:24:21,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:24:21,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:24:21,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665540448] [2024-12-02 10:24:21,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665540448] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:24:21,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:24:21,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 10:24:21,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666725022] [2024-12-02 10:24:21,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:24:21,561 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 10:24:21,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:24:21,562 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 10:24:21,562 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 10:24:21,572 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 90 [2024-12-02 10:24:21,573 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 78 transitions, 192 flow. Second operand has 4 states, 4 states have (on average 39.75) internal successors, (159), 4 states have internal predecessors, (159), 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) [2024-12-02 10:24:21,573 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 10:24:21,573 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 90 [2024-12-02 10:24:21,573 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 10:24:22,352 INFO L124 PetriNetUnfolderBase]: 2816/6149 cut-off events. [2024-12-02 10:24:22,352 INFO L125 PetriNetUnfolderBase]: For 425/757 co-relation queries the response was YES. [2024-12-02 10:24:22,370 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11141 conditions, 6149 events. 2816/6149 cut-off events. For 425/757 co-relation queries the response was YES. Maximal size of possible extension queue 233. Compared 49866 event pairs, 911 based on Foata normal form. 131/5731 useless extension candidates. Maximal degree in co-relation 11040. Up to 3985 conditions per place. [2024-12-02 10:24:22,397 INFO L140 encePairwiseOnDemand]: 84/90 looper letters, 83 selfloop transitions, 6 changer transitions 0/128 dead transitions. [2024-12-02 10:24:22,397 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 128 transitions, 501 flow [2024-12-02 10:24:22,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 10:24:22,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-12-02 10:24:22,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 280 transitions. [2024-12-02 10:24:22,399 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6222222222222222 [2024-12-02 10:24:22,399 INFO L175 Difference]: Start difference. First operand has 84 places, 78 transitions, 192 flow. Second operand 5 states and 280 transitions. [2024-12-02 10:24:22,399 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 128 transitions, 501 flow [2024-12-02 10:24:22,401 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 128 transitions, 497 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-12-02 10:24:22,403 INFO L231 Difference]: Finished difference. Result has 90 places, 83 transitions, 234 flow [2024-12-02 10:24:22,403 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=234, PETRI_PLACES=90, PETRI_TRANSITIONS=83} [2024-12-02 10:24:22,404 INFO L279 CegarLoopForPetriNet]: 79 programPoint places, 11 predicate places. [2024-12-02 10:24:22,404 INFO L471 AbstractCegarLoop]: Abstraction has has 90 places, 83 transitions, 234 flow [2024-12-02 10:24:22,404 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.75) internal successors, (159), 4 states have internal predecessors, (159), 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) [2024-12-02 10:24:22,404 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 10:24:22,405 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2024-12-02 10:24:22,405 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 10:24:22,405 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)] === [2024-12-02 10:24:22,405 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:24:22,405 INFO L85 PathProgramCache]: Analyzing trace with hash 1269363752, now seen corresponding path program 1 times [2024-12-02 10:24:22,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:24:22,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300182426] [2024-12-02 10:24:22,406 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:24:22,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:24:22,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:24:22,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:24:22,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:24:22,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300182426] [2024-12-02 10:24:22,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1300182426] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:24:22,495 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:24:22,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 10:24:22,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325729535] [2024-12-02 10:24:22,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:24:22,495 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 10:24:22,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:24:22,496 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 10:24:22,496 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:24:22,509 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 90 [2024-12-02 10:24:22,510 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 83 transitions, 234 flow. Second operand has 6 states, 6 states have (on average 38.5) internal successors, (231), 6 states have internal predecessors, (231), 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) [2024-12-02 10:24:22,510 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 10:24:22,510 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 90 [2024-12-02 10:24:22,510 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 10:24:23,284 INFO L124 PetriNetUnfolderBase]: 3108/6275 cut-off events. [2024-12-02 10:24:23,284 INFO L125 PetriNetUnfolderBase]: For 1199/1199 co-relation queries the response was YES. [2024-12-02 10:24:23,299 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12814 conditions, 6275 events. 3108/6275 cut-off events. For 1199/1199 co-relation queries the response was YES. Maximal size of possible extension queue 210. Compared 49278 event pairs, 301 based on Foata normal form. 152/5933 useless extension candidates. Maximal degree in co-relation 11887. Up to 2885 conditions per place. [2024-12-02 10:24:23,327 INFO L140 encePairwiseOnDemand]: 85/90 looper letters, 116 selfloop transitions, 6 changer transitions 0/159 dead transitions. [2024-12-02 10:24:23,327 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 159 transitions, 688 flow [2024-12-02 10:24:23,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 10:24:23,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-02 10:24:23,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 330 transitions. [2024-12-02 10:24:23,330 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6111111111111112 [2024-12-02 10:24:23,330 INFO L175 Difference]: Start difference. First operand has 90 places, 83 transitions, 234 flow. Second operand 6 states and 330 transitions. [2024-12-02 10:24:23,330 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 159 transitions, 688 flow [2024-12-02 10:24:23,336 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 159 transitions, 688 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-12-02 10:24:23,338 INFO L231 Difference]: Finished difference. Result has 94 places, 82 transitions, 242 flow [2024-12-02 10:24:23,338 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=230, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=242, PETRI_PLACES=94, PETRI_TRANSITIONS=82} [2024-12-02 10:24:23,339 INFO L279 CegarLoopForPetriNet]: 79 programPoint places, 15 predicate places. [2024-12-02 10:24:23,339 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 82 transitions, 242 flow [2024-12-02 10:24:23,339 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 38.5) internal successors, (231), 6 states have internal predecessors, (231), 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) [2024-12-02 10:24:23,339 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 10:24:23,339 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2024-12-02 10:24:23,340 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 10:24:23,340 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)] === [2024-12-02 10:24:23,340 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:24:23,340 INFO L85 PathProgramCache]: Analyzing trace with hash 695571094, now seen corresponding path program 1 times [2024-12-02 10:24:23,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:24:23,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440317407] [2024-12-02 10:24:23,340 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:24:23,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:24:23,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:24:23,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:24:23,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:24:23,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440317407] [2024-12-02 10:24:23,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440317407] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:24:23,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:24:23,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:24:23,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569873182] [2024-12-02 10:24:23,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:24:23,388 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 10:24:23,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:24:23,389 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 10:24:23,389 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 10:24:23,393 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 90 [2024-12-02 10:24:23,393 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 82 transitions, 242 flow. Second operand has 4 states, 4 states have (on average 39.25) internal successors, (157), 4 states have internal predecessors, (157), 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) [2024-12-02 10:24:23,393 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 10:24:23,393 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 90 [2024-12-02 10:24:23,393 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 10:24:23,865 INFO L124 PetriNetUnfolderBase]: 2829/5695 cut-off events. [2024-12-02 10:24:23,865 INFO L125 PetriNetUnfolderBase]: For 1845/1845 co-relation queries the response was YES. [2024-12-02 10:24:23,872 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12061 conditions, 5695 events. 2829/5695 cut-off events. For 1845/1845 co-relation queries the response was YES. Maximal size of possible extension queue 189. Compared 43893 event pairs, 397 based on Foata normal form. 152/5574 useless extension candidates. Maximal degree in co-relation 11221. Up to 3339 conditions per place. [2024-12-02 10:24:23,885 INFO L140 encePairwiseOnDemand]: 85/90 looper letters, 93 selfloop transitions, 6 changer transitions 0/136 dead transitions. [2024-12-02 10:24:23,886 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 136 transitions, 592 flow [2024-12-02 10:24:23,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 10:24:23,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-12-02 10:24:23,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 231 transitions. [2024-12-02 10:24:23,887 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6416666666666667 [2024-12-02 10:24:23,887 INFO L175 Difference]: Start difference. First operand has 94 places, 82 transitions, 242 flow. Second operand 4 states and 231 transitions. [2024-12-02 10:24:23,887 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 136 transitions, 592 flow [2024-12-02 10:24:23,894 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 136 transitions, 576 flow, removed 3 selfloop flow, removed 5 redundant places. [2024-12-02 10:24:23,896 INFO L231 Difference]: Finished difference. Result has 92 places, 82 transitions, 242 flow [2024-12-02 10:24:23,896 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=222, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=242, PETRI_PLACES=92, PETRI_TRANSITIONS=82} [2024-12-02 10:24:23,897 INFO L279 CegarLoopForPetriNet]: 79 programPoint places, 13 predicate places. [2024-12-02 10:24:23,897 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 82 transitions, 242 flow [2024-12-02 10:24:23,897 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.25) internal successors, (157), 4 states have internal predecessors, (157), 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) [2024-12-02 10:24:23,897 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 10:24:23,897 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1] [2024-12-02 10:24:23,897 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 10:24:23,898 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)] === [2024-12-02 10:24:23,898 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:24:23,898 INFO L85 PathProgramCache]: Analyzing trace with hash -1571062569, now seen corresponding path program 1 times [2024-12-02 10:24:23,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:24:23,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991829431] [2024-12-02 10:24:23,898 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:24:23,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:24:23,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 10:24:23,913 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 10:24:23,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 10:24:23,926 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-12-02 10:24:23,926 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-02 10:24:23,926 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 17 remaining) [2024-12-02 10:24:23,926 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 17 remaining) [2024-12-02 10:24:23,927 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 17 remaining) [2024-12-02 10:24:23,927 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 17 remaining) [2024-12-02 10:24:23,927 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 17 remaining) [2024-12-02 10:24:23,927 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 17 remaining) [2024-12-02 10:24:23,927 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 17 remaining) [2024-12-02 10:24:23,927 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 17 remaining) [2024-12-02 10:24:23,927 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 17 remaining) [2024-12-02 10:24:23,927 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 17 remaining) [2024-12-02 10:24:23,927 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 17 remaining) [2024-12-02 10:24:23,927 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 17 remaining) [2024-12-02 10:24:23,927 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 17 remaining) [2024-12-02 10:24:23,927 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 17 remaining) [2024-12-02 10:24:23,928 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 17 remaining) [2024-12-02 10:24:23,928 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 17 remaining) [2024-12-02 10:24:23,928 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 17 remaining) [2024-12-02 10:24:23,928 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 10:24:23,928 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-12-02 10:24:23,929 WARN L246 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-12-02 10:24:23,929 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-12-02 10:24:23,959 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-12-02 10:24:23,962 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 107 places, 123 transitions, 273 flow [2024-12-02 10:24:23,975 INFO L124 PetriNetUnfolderBase]: 34/216 cut-off events. [2024-12-02 10:24:23,975 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-12-02 10:24:23,976 INFO L83 FinitePrefix]: Finished finitePrefix Result has 241 conditions, 216 events. 34/216 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 887 event pairs, 1 based on Foata normal form. 0/146 useless extension candidates. Maximal degree in co-relation 148. Up to 12 conditions per place. [2024-12-02 10:24:23,976 INFO L82 GeneralOperation]: Start removeDead. Operand has 107 places, 123 transitions, 273 flow [2024-12-02 10:24:23,977 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 107 places, 123 transitions, 273 flow [2024-12-02 10:24:23,978 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 10:24:23,979 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;@2a628e1e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 10:24:23,979 INFO L334 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2024-12-02 10:24:23,981 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-12-02 10:24:23,981 INFO L124 PetriNetUnfolderBase]: 0/11 cut-off events. [2024-12-02 10:24:23,981 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-12-02 10:24:23,981 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 10:24:23,981 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-12-02 10:24:23,981 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)] === [2024-12-02 10:24:23,981 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:24:23,981 INFO L85 PathProgramCache]: Analyzing trace with hash 566118010, now seen corresponding path program 1 times [2024-12-02 10:24:23,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:24:23,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446389635] [2024-12-02 10:24:23,982 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:24:23,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:24:23,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:24:24,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:24:24,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:24:24,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446389635] [2024-12-02 10:24:24,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446389635] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:24:24,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:24:24,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 10:24:24,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556302785] [2024-12-02 10:24:24,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:24:24,013 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 10:24:24,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:24:24,013 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 10:24:24,013 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 10:24:24,021 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 123 [2024-12-02 10:24:24,021 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 123 transitions, 273 flow. Second operand has 4 states, 4 states have (on average 52.25) internal successors, (209), 4 states have internal predecessors, (209), 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) [2024-12-02 10:24:24,021 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 10:24:24,021 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 123 [2024-12-02 10:24:24,021 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 10:24:31,350 INFO L124 PetriNetUnfolderBase]: 61547/112464 cut-off events. [2024-12-02 10:24:31,350 INFO L125 PetriNetUnfolderBase]: For 1911/1911 co-relation queries the response was YES. [2024-12-02 10:24:31,478 INFO L83 FinitePrefix]: Finished finitePrefix Result has 199239 conditions, 112464 events. 61547/112464 cut-off events. For 1911/1911 co-relation queries the response was YES. Maximal size of possible extension queue 2793. Compared 1176334 event pairs, 39796 based on Foata normal form. 24272/125150 useless extension candidates. Maximal degree in co-relation 13323. Up to 85613 conditions per place. [2024-12-02 10:24:31,799 INFO L140 encePairwiseOnDemand]: 97/123 looper letters, 74 selfloop transitions, 3 changer transitions 0/128 dead transitions. [2024-12-02 10:24:31,799 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 128 transitions, 437 flow [2024-12-02 10:24:31,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 10:24:31,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-12-02 10:24:31,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 316 transitions. [2024-12-02 10:24:31,802 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6422764227642277 [2024-12-02 10:24:31,802 INFO L175 Difference]: Start difference. First operand has 107 places, 123 transitions, 273 flow. Second operand 4 states and 316 transitions. [2024-12-02 10:24:31,802 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 128 transitions, 437 flow [2024-12-02 10:24:31,804 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 128 transitions, 437 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-12-02 10:24:31,805 INFO L231 Difference]: Finished difference. Result has 112 places, 105 transitions, 257 flow [2024-12-02 10:24:31,805 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=233, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=257, PETRI_PLACES=112, PETRI_TRANSITIONS=105} [2024-12-02 10:24:31,805 INFO L279 CegarLoopForPetriNet]: 107 programPoint places, 5 predicate places. [2024-12-02 10:24:31,806 INFO L471 AbstractCegarLoop]: Abstraction has has 112 places, 105 transitions, 257 flow [2024-12-02 10:24:31,806 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 52.25) internal successors, (209), 4 states have internal predecessors, (209), 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) [2024-12-02 10:24:31,806 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 10:24:31,806 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:24:31,806 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 10:24:31,806 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)] === [2024-12-02 10:24:31,806 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:24:31,807 INFO L85 PathProgramCache]: Analyzing trace with hash -1700421171, now seen corresponding path program 1 times [2024-12-02 10:24:31,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:24:31,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405069903] [2024-12-02 10:24:31,807 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:24:31,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:24:31,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:24:31,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:24:31,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:24:31,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405069903] [2024-12-02 10:24:31,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405069903] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:24:31,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:24:31,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 10:24:31,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654064018] [2024-12-02 10:24:31,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:24:31,938 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 10:24:31,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:24:31,938 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 10:24:31,938 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 10:24:31,944 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 123 [2024-12-02 10:24:31,945 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 105 transitions, 257 flow. Second operand has 4 states, 4 states have (on average 53.75) internal successors, (215), 4 states have internal predecessors, (215), 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) [2024-12-02 10:24:31,945 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 10:24:31,945 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 123 [2024-12-02 10:24:31,945 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 10:24:38,385 INFO L124 PetriNetUnfolderBase]: 56914/100530 cut-off events. [2024-12-02 10:24:38,385 INFO L125 PetriNetUnfolderBase]: For 6449/10968 co-relation queries the response was YES. [2024-12-02 10:24:38,550 INFO L83 FinitePrefix]: Finished finitePrefix Result has 185868 conditions, 100530 events. 56914/100530 cut-off events. For 6449/10968 co-relation queries the response was YES. Maximal size of possible extension queue 2634. Compared 1002852 event pairs, 23513 based on Foata normal form. 1507/93986 useless extension candidates. Maximal degree in co-relation 185766. Up to 73664 conditions per place. [2024-12-02 10:24:38,962 INFO L140 encePairwiseOnDemand]: 116/123 looper letters, 121 selfloop transitions, 8 changer transitions 0/182 dead transitions. [2024-12-02 10:24:38,963 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 182 transitions, 724 flow [2024-12-02 10:24:38,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 10:24:38,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-12-02 10:24:38,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 390 transitions. [2024-12-02 10:24:38,964 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6341463414634146 [2024-12-02 10:24:38,964 INFO L175 Difference]: Start difference. First operand has 112 places, 105 transitions, 257 flow. Second operand 5 states and 390 transitions. [2024-12-02 10:24:38,964 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 182 transitions, 724 flow [2024-12-02 10:24:38,969 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 182 transitions, 720 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-12-02 10:24:38,971 INFO L231 Difference]: Finished difference. Result has 118 places, 112 transitions, 316 flow [2024-12-02 10:24:38,971 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=255, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=316, PETRI_PLACES=118, PETRI_TRANSITIONS=112} [2024-12-02 10:24:38,971 INFO L279 CegarLoopForPetriNet]: 107 programPoint places, 11 predicate places. [2024-12-02 10:24:38,972 INFO L471 AbstractCegarLoop]: Abstraction has has 118 places, 112 transitions, 316 flow [2024-12-02 10:24:38,972 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 53.75) internal successors, (215), 4 states have internal predecessors, (215), 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) [2024-12-02 10:24:38,972 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 10:24:38,972 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2024-12-02 10:24:38,972 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 10:24:38,972 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)] === [2024-12-02 10:24:38,972 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:24:38,972 INFO L85 PathProgramCache]: Analyzing trace with hash -1463110552, now seen corresponding path program 1 times [2024-12-02 10:24:38,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:24:38,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880429402] [2024-12-02 10:24:38,973 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:24:38,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:24:38,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:24:39,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:24:39,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:24:39,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880429402] [2024-12-02 10:24:39,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880429402] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:24:39,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:24:39,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 10:24:39,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023015803] [2024-12-02 10:24:39,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:24:39,043 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 10:24:39,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:24:39,043 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 10:24:39,043 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:24:39,051 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 123 [2024-12-02 10:24:39,052 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 112 transitions, 316 flow. Second operand has 6 states, 6 states have (on average 52.5) internal successors, (315), 6 states have internal predecessors, (315), 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) [2024-12-02 10:24:39,052 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 10:24:39,052 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 123 [2024-12-02 10:24:39,052 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 10:24:46,772 INFO L124 PetriNetUnfolderBase]: 63163/109070 cut-off events. [2024-12-02 10:24:46,772 INFO L125 PetriNetUnfolderBase]: For 27037/27037 co-relation queries the response was YES. [2024-12-02 10:24:46,974 INFO L83 FinitePrefix]: Finished finitePrefix Result has 223045 conditions, 109070 events. 63163/109070 cut-off events. For 27037/27037 co-relation queries the response was YES. Maximal size of possible extension queue 2593. Compared 1079167 event pairs, 12803 based on Foata normal form. 2120/102632 useless extension candidates. Maximal degree in co-relation 194098. Up to 51546 conditions per place. [2024-12-02 10:24:47,341 INFO L140 encePairwiseOnDemand]: 118/123 looper letters, 157 selfloop transitions, 6 changer transitions 0/214 dead transitions. [2024-12-02 10:24:47,341 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 214 transitions, 930 flow [2024-12-02 10:24:47,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 10:24:47,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-02 10:24:47,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 449 transitions. [2024-12-02 10:24:47,343 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6084010840108401 [2024-12-02 10:24:47,343 INFO L175 Difference]: Start difference. First operand has 118 places, 112 transitions, 316 flow. Second operand 6 states and 449 transitions. [2024-12-02 10:24:47,343 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 214 transitions, 930 flow [2024-12-02 10:24:47,362 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 214 transitions, 930 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-12-02 10:24:47,364 INFO L231 Difference]: Finished difference. Result has 122 places, 111 transitions, 324 flow [2024-12-02 10:24:47,364 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=312, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=324, PETRI_PLACES=122, PETRI_TRANSITIONS=111} [2024-12-02 10:24:47,365 INFO L279 CegarLoopForPetriNet]: 107 programPoint places, 15 predicate places. [2024-12-02 10:24:47,365 INFO L471 AbstractCegarLoop]: Abstraction has has 122 places, 111 transitions, 324 flow [2024-12-02 10:24:47,365 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 52.5) internal successors, (315), 6 states have internal predecessors, (315), 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) [2024-12-02 10:24:47,365 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 10:24:47,365 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2024-12-02 10:24:47,365 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 10:24:47,365 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-12-02 10:24:47,366 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:24:47,366 INFO L85 PathProgramCache]: Analyzing trace with hash 1888213713, now seen corresponding path program 1 times [2024-12-02 10:24:47,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:24:47,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826796377] [2024-12-02 10:24:47,366 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:24:47,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:24:47,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:24:47,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:24:47,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:24:47,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826796377] [2024-12-02 10:24:47,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826796377] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:24:47,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:24:47,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:24:47,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882462631] [2024-12-02 10:24:47,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:24:47,414 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 10:24:47,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:24:47,415 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 10:24:47,415 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 10:24:47,419 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 123 [2024-12-02 10:24:47,420 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 111 transitions, 324 flow. Second operand has 4 states, 4 states have (on average 53.25) internal successors, (213), 4 states have internal predecessors, (213), 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) [2024-12-02 10:24:47,420 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 10:24:47,420 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 123 [2024-12-02 10:24:47,420 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 10:24:54,126 INFO L124 PetriNetUnfolderBase]: 57606/96196 cut-off events. [2024-12-02 10:24:54,126 INFO L125 PetriNetUnfolderBase]: For 32416/32416 co-relation queries the response was YES. [2024-12-02 10:24:54,305 INFO L83 FinitePrefix]: Finished finitePrefix Result has 205270 conditions, 96196 events. 57606/96196 cut-off events. For 32416/32416 co-relation queries the response was YES. Maximal size of possible extension queue 2293. Compared 908548 event pairs, 8707 based on Foata normal form. 2136/93908 useless extension candidates. Maximal degree in co-relation 178914. Up to 59362 conditions per place. [2024-12-02 10:24:54,548 INFO L140 encePairwiseOnDemand]: 118/123 looper letters, 134 selfloop transitions, 6 changer transitions 0/191 dead transitions. [2024-12-02 10:24:54,548 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 191 transitions, 834 flow [2024-12-02 10:24:54,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 10:24:54,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-12-02 10:24:54,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 322 transitions. [2024-12-02 10:24:54,551 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6544715447154471 [2024-12-02 10:24:54,551 INFO L175 Difference]: Start difference. First operand has 122 places, 111 transitions, 324 flow. Second operand 4 states and 322 transitions. [2024-12-02 10:24:54,551 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 191 transitions, 834 flow [2024-12-02 10:24:54,923 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 191 transitions, 818 flow, removed 3 selfloop flow, removed 5 redundant places. [2024-12-02 10:24:54,925 INFO L231 Difference]: Finished difference. Result has 120 places, 111 transitions, 324 flow [2024-12-02 10:24:54,925 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=304, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=324, PETRI_PLACES=120, PETRI_TRANSITIONS=111} [2024-12-02 10:24:54,925 INFO L279 CegarLoopForPetriNet]: 107 programPoint places, 13 predicate places. [2024-12-02 10:24:54,925 INFO L471 AbstractCegarLoop]: Abstraction has has 120 places, 111 transitions, 324 flow [2024-12-02 10:24:54,926 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 53.25) internal successors, (213), 4 states have internal predecessors, (213), 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) [2024-12-02 10:24:54,926 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 10:24:54,926 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:24:54,926 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 10:24:54,926 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-12-02 10:24:54,926 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:24:54,926 INFO L85 PathProgramCache]: Analyzing trace with hash -194963551, now seen corresponding path program 1 times [2024-12-02 10:24:54,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:24:54,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376576254] [2024-12-02 10:24:54,927 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:24:54,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:24:54,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:24:55,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:24:55,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:24:55,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376576254] [2024-12-02 10:24:55,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376576254] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:24:55,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:24:55,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 10:24:55,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427343550] [2024-12-02 10:24:55,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:24:55,215 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 10:24:55,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:24:55,216 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 10:24:55,216 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 10:24:55,221 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 123 [2024-12-02 10:24:55,221 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 111 transitions, 324 flow. Second operand has 4 states, 4 states have (on average 54.25) internal successors, (217), 4 states have internal predecessors, (217), 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) [2024-12-02 10:24:55,221 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 10:24:55,221 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 123 [2024-12-02 10:24:55,221 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 10:25:03,445 INFO L124 PetriNetUnfolderBase]: 63541/113241 cut-off events. [2024-12-02 10:25:03,445 INFO L125 PetriNetUnfolderBase]: For 42314/42332 co-relation queries the response was YES. [2024-12-02 10:25:03,650 INFO L83 FinitePrefix]: Finished finitePrefix Result has 232325 conditions, 113241 events. 63541/113241 cut-off events. For 42314/42332 co-relation queries the response was YES. Maximal size of possible extension queue 3080. Compared 1159232 event pairs, 26964 based on Foata normal form. 3128/108717 useless extension candidates. Maximal degree in co-relation 202719. Up to 82762 conditions per place. [2024-12-02 10:25:03,954 INFO L140 encePairwiseOnDemand]: 116/123 looper letters, 122 selfloop transitions, 11 changer transitions 0/184 dead transitions. [2024-12-02 10:25:03,954 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 184 transitions, 829 flow [2024-12-02 10:25:03,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 10:25:03,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-12-02 10:25:03,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 389 transitions. [2024-12-02 10:25:03,955 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6325203252032521 [2024-12-02 10:25:03,955 INFO L175 Difference]: Start difference. First operand has 120 places, 111 transitions, 324 flow. Second operand 5 states and 389 transitions. [2024-12-02 10:25:03,956 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 184 transitions, 829 flow [2024-12-02 10:25:03,991 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 184 transitions, 814 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-12-02 10:25:03,992 INFO L231 Difference]: Finished difference. Result has 125 places, 116 transitions, 389 flow [2024-12-02 10:25:03,993 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=316, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=389, PETRI_PLACES=125, PETRI_TRANSITIONS=116} [2024-12-02 10:25:03,993 INFO L279 CegarLoopForPetriNet]: 107 programPoint places, 18 predicate places. [2024-12-02 10:25:03,993 INFO L471 AbstractCegarLoop]: Abstraction has has 125 places, 116 transitions, 389 flow [2024-12-02 10:25:03,993 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 54.25) internal successors, (217), 4 states have internal predecessors, (217), 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) [2024-12-02 10:25:03,993 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 10:25:03,993 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:25:03,993 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 10:25:03,994 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-12-02 10:25:03,994 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:25:03,994 INFO L85 PathProgramCache]: Analyzing trace with hash -2087021423, now seen corresponding path program 1 times [2024-12-02 10:25:03,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:25:03,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946419504] [2024-12-02 10:25:03,994 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:25:03,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:25:04,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:25:04,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:25:04,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:25:04,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946419504] [2024-12-02 10:25:04,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [946419504] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:25:04,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:25:04,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 10:25:04,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219819997] [2024-12-02 10:25:04,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:25:04,335 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 10:25:04,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:25:04,335 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 10:25:04,335 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:25:04,356 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 123 [2024-12-02 10:25:04,357 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 116 transitions, 389 flow. Second operand has 6 states, 6 states have (on average 51.833333333333336) internal successors, (311), 6 states have internal predecessors, (311), 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) [2024-12-02 10:25:04,357 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 10:25:04,357 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 123 [2024-12-02 10:25:04,357 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 10:25:16,197 INFO L124 PetriNetUnfolderBase]: 91982/158224 cut-off events. [2024-12-02 10:25:16,198 INFO L125 PetriNetUnfolderBase]: For 80378/83331 co-relation queries the response was YES. [2024-12-02 10:25:16,513 INFO L83 FinitePrefix]: Finished finitePrefix Result has 336759 conditions, 158224 events. 91982/158224 cut-off events. For 80378/83331 co-relation queries the response was YES. Maximal size of possible extension queue 4380. Compared 1628649 event pairs, 23500 based on Foata normal form. 3214/147946 useless extension candidates. Maximal degree in co-relation 247616. Up to 83939 conditions per place. [2024-12-02 10:25:16,940 INFO L140 encePairwiseOnDemand]: 112/123 looper letters, 228 selfloop transitions, 25 changer transitions 0/302 dead transitions. [2024-12-02 10:25:16,940 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 302 transitions, 1491 flow [2024-12-02 10:25:16,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 10:25:16,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-12-02 10:25:16,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 641 transitions. [2024-12-02 10:25:16,942 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6514227642276422 [2024-12-02 10:25:16,942 INFO L175 Difference]: Start difference. First operand has 125 places, 116 transitions, 389 flow. Second operand 8 states and 641 transitions. [2024-12-02 10:25:16,942 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 302 transitions, 1491 flow [2024-12-02 10:25:17,296 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 302 transitions, 1480 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-12-02 10:25:17,297 INFO L231 Difference]: Finished difference. Result has 135 places, 130 transitions, 557 flow [2024-12-02 10:25:17,298 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=382, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=557, PETRI_PLACES=135, PETRI_TRANSITIONS=130} [2024-12-02 10:25:17,298 INFO L279 CegarLoopForPetriNet]: 107 programPoint places, 28 predicate places. [2024-12-02 10:25:17,298 INFO L471 AbstractCegarLoop]: Abstraction has has 135 places, 130 transitions, 557 flow [2024-12-02 10:25:17,298 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 51.833333333333336) internal successors, (311), 6 states have internal predecessors, (311), 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) [2024-12-02 10:25:17,298 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 10:25:17,298 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 3, 1, 1, 1, 1, 1] [2024-12-02 10:25:17,298 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 10:25:17,299 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-12-02 10:25:17,299 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:25:17,299 INFO L85 PathProgramCache]: Analyzing trace with hash 883173982, now seen corresponding path program 1 times [2024-12-02 10:25:17,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:25:17,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781242508] [2024-12-02 10:25:17,299 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:25:17,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:25:17,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 10:25:17,314 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 10:25:17,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 10:25:17,328 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-12-02 10:25:17,328 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-02 10:25:17,328 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 21 remaining) [2024-12-02 10:25:17,328 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 21 remaining) [2024-12-02 10:25:17,328 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 21 remaining) [2024-12-02 10:25:17,328 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 21 remaining) [2024-12-02 10:25:17,328 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 21 remaining) [2024-12-02 10:25:17,328 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 21 remaining) [2024-12-02 10:25:17,328 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 21 remaining) [2024-12-02 10:25:17,328 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 21 remaining) [2024-12-02 10:25:17,329 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 21 remaining) [2024-12-02 10:25:17,329 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 21 remaining) [2024-12-02 10:25:17,329 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 21 remaining) [2024-12-02 10:25:17,329 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 21 remaining) [2024-12-02 10:25:17,329 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 21 remaining) [2024-12-02 10:25:17,329 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 21 remaining) [2024-12-02 10:25:17,329 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 21 remaining) [2024-12-02 10:25:17,329 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 21 remaining) [2024-12-02 10:25:17,329 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 21 remaining) [2024-12-02 10:25:17,329 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 21 remaining) [2024-12-02 10:25:17,329 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 21 remaining) [2024-12-02 10:25:17,329 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 21 remaining) [2024-12-02 10:25:17,329 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 21 remaining) [2024-12-02 10:25:17,329 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 10:25:17,329 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:25:17,330 WARN L246 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2024-12-02 10:25:17,330 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2024-12-02 10:25:17,357 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-12-02 10:25:17,359 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 135 places, 156 transitions, 352 flow [2024-12-02 10:25:17,389 INFO L124 PetriNetUnfolderBase]: 55/339 cut-off events. [2024-12-02 10:25:17,389 INFO L125 PetriNetUnfolderBase]: For 48/48 co-relation queries the response was YES. [2024-12-02 10:25:17,391 INFO L83 FinitePrefix]: Finished finitePrefix Result has 390 conditions, 339 events. 55/339 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1513 event pairs, 6 based on Foata normal form. 0/230 useless extension candidates. Maximal degree in co-relation 244. Up to 32 conditions per place. [2024-12-02 10:25:17,391 INFO L82 GeneralOperation]: Start removeDead. Operand has 135 places, 156 transitions, 352 flow [2024-12-02 10:25:17,393 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 135 places, 156 transitions, 352 flow [2024-12-02 10:25:17,394 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 10:25:17,394 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;@2a628e1e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 10:25:17,394 INFO L334 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2024-12-02 10:25:17,395 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-12-02 10:25:17,395 INFO L124 PetriNetUnfolderBase]: 0/11 cut-off events. [2024-12-02 10:25:17,396 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-12-02 10:25:17,396 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 10:25:17,396 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-12-02 10:25:17,396 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-12-02 10:25:17,396 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:25:17,396 INFO L85 PathProgramCache]: Analyzing trace with hash 715019381, now seen corresponding path program 1 times [2024-12-02 10:25:17,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:25:17,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455417956] [2024-12-02 10:25:17,396 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:25:17,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:25:17,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:25:17,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:25:17,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:25:17,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455417956] [2024-12-02 10:25:17,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455417956] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:25:17,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:25:17,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 10:25:17,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324888143] [2024-12-02 10:25:17,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:25:17,425 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 10:25:17,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:25:17,425 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 10:25:17,425 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 10:25:17,431 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 156 [2024-12-02 10:25:17,431 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 156 transitions, 352 flow. Second operand has 4 states, 4 states have (on average 66.25) internal successors, (265), 4 states have internal predecessors, (265), 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) [2024-12-02 10:25:17,431 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 10:25:17,432 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 156 [2024-12-02 10:25:17,432 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand