./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_07-cond_racing2.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_778e3137-a1d9-44df-96f7-054880c73b90/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_778e3137-a1d9-44df-96f7-054880c73b90/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_778e3137-a1d9-44df-96f7-054880c73b90/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_778e3137-a1d9-44df-96f7-054880c73b90/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_07-cond_racing2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_778e3137-a1d9-44df-96f7-054880c73b90/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_778e3137-a1d9-44df-96f7-054880c73b90/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 45d1947e02656e790dafd6ca03f6eadb14d0b370e2217b75740af9998d975bef --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 11:33:08,101 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 11:33:08,158 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_778e3137-a1d9-44df-96f7-054880c73b90/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-12-02 11:33:08,163 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 11:33:08,163 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 11:33:08,186 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 11:33:08,186 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 11:33:08,186 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 11:33:08,187 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 11:33:08,187 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 11:33:08,187 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 11:33:08,187 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 11:33:08,187 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 11:33:08,187 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 11:33:08,187 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 11:33:08,188 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 11:33:08,188 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 11:33:08,188 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 11:33:08,188 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 11:33:08,188 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 11:33:08,188 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 11:33:08,188 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 11:33:08,188 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 11:33:08,188 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 11:33:08,188 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-02 11:33:08,188 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-02 11:33:08,189 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 11:33:08,189 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 11:33:08,189 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 11:33:08,189 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 11:33:08,189 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 11:33:08,189 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 11:33:08,189 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 11:33:08,189 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 11:33:08,189 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:33:08,189 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 11:33:08,189 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 11:33:08,189 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 11:33:08,190 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 11:33:08,190 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:33:08,190 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 11:33:08,190 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 11:33:08,190 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 11:33:08,190 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 11:33:08,190 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 11:33:08,190 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 11:33:08,190 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 11:33:08,190 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 11:33:08,191 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 11:33:08,191 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 11:33:08,191 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_778e3137-a1d9-44df-96f7-054880c73b90/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 -> 45d1947e02656e790dafd6ca03f6eadb14d0b370e2217b75740af9998d975bef [2024-12-02 11:33:08,428 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 11:33:08,436 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 11:33:08,438 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 11:33:08,439 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 11:33:08,439 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 11:33:08,440 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_778e3137-a1d9-44df-96f7-054880c73b90/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/goblint-regression/28-race_reach_07-cond_racing2.i [2024-12-02 11:33:11,022 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_778e3137-a1d9-44df-96f7-054880c73b90/bin/uautomizer-verify-84ZbGMXZE1/data/b56842aaf/72d639ba72164e2f913cd4df30170a73/FLAG588a23aa0 [2024-12-02 11:33:11,294 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 11:33:11,294 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_778e3137-a1d9-44df-96f7-054880c73b90/sv-benchmarks/c/goblint-regression/28-race_reach_07-cond_racing2.i [2024-12-02 11:33:11,307 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_778e3137-a1d9-44df-96f7-054880c73b90/bin/uautomizer-verify-84ZbGMXZE1/data/b56842aaf/72d639ba72164e2f913cd4df30170a73/FLAG588a23aa0 [2024-12-02 11:33:11,603 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_778e3137-a1d9-44df-96f7-054880c73b90/bin/uautomizer-verify-84ZbGMXZE1/data/b56842aaf/72d639ba72164e2f913cd4df30170a73 [2024-12-02 11:33:11,605 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 11:33:11,606 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 11:33:11,607 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 11:33:11,607 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 11:33:11,610 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 11:33:11,611 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:33:11" (1/1) ... [2024-12-02 11:33:11,611 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6668edc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:33:11, skipping insertion in model container [2024-12-02 11:33:11,612 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:33:11" (1/1) ... [2024-12-02 11:33:11,638 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 11:33:11,976 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 11:33:11,991 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 11:33:12,039 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 11:33:12,091 INFO L204 MainTranslator]: Completed translation [2024-12-02 11:33:12,092 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:33:12 WrapperNode [2024-12-02 11:33:12,092 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 11:33:12,093 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 11:33:12,093 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 11:33:12,093 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 11:33:12,098 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:33:12" (1/1) ... [2024-12-02 11:33:12,109 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:33:12" (1/1) ... [2024-12-02 11:33:12,123 INFO L138 Inliner]: procedures = 271, calls = 36, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 147 [2024-12-02 11:33:12,123 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 11:33:12,124 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 11:33:12,124 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 11:33:12,124 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 11:33:12,132 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:33:12" (1/1) ... [2024-12-02 11:33:12,133 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:33:12" (1/1) ... [2024-12-02 11:33:12,136 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:33:12" (1/1) ... [2024-12-02 11:33:12,149 INFO L175 MemorySlicer]: Split 14 memory accesses to 4 slices as follows [2, 2, 5, 5]. 36 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 0, 5, 5]. The 1 writes are split as follows [0, 1, 0, 0]. [2024-12-02 11:33:12,150 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:33:12" (1/1) ... [2024-12-02 11:33:12,150 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:33:12" (1/1) ... [2024-12-02 11:33:12,157 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:33:12" (1/1) ... [2024-12-02 11:33:12,158 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:33:12" (1/1) ... [2024-12-02 11:33:12,160 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:33:12" (1/1) ... [2024-12-02 11:33:12,161 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:33:12" (1/1) ... [2024-12-02 11:33:12,162 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:33:12" (1/1) ... [2024-12-02 11:33:12,164 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 11:33:12,164 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 11:33:12,164 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 11:33:12,165 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 11:33:12,165 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:33:12" (1/1) ... [2024-12-02 11:33:12,168 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:33:12,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_778e3137-a1d9-44df-96f7-054880c73b90/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:33:12,187 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_778e3137-a1d9-44df-96f7-054880c73b90/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 11:33:12,188 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_778e3137-a1d9-44df-96f7-054880c73b90/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 11:33:12,206 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-12-02 11:33:12,206 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-02 11:33:12,206 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-12-02 11:33:12,206 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-12-02 11:33:12,206 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-12-02 11:33:12,206 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-12-02 11:33:12,206 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-12-02 11:33:12,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-12-02 11:33:12,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-12-02 11:33:12,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-12-02 11:33:12,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-12-02 11:33:12,207 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-12-02 11:33:12,207 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 11:33:12,207 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-12-02 11:33:12,207 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-12-02 11:33:12,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 11:33:12,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-02 11:33:12,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-12-02 11:33:12,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-12-02 11:33:12,207 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 11:33:12,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 11:33:12,209 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 11:33:12,325 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 11:33:12,326 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 11:33:12,552 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-12-02 11:33:12,552 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 11:33:12,867 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 11:33:12,867 INFO L312 CfgBuilder]: Removed 6 assume(true) statements. [2024-12-02 11:33:12,868 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:33:12 BoogieIcfgContainer [2024-12-02 11:33:12,868 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 11:33:12,870 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 11:33:12,870 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 11:33:12,874 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 11:33:12,874 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 11:33:11" (1/3) ... [2024-12-02 11:33:12,875 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c18288 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 11:33:12, skipping insertion in model container [2024-12-02 11:33:12,875 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:33:12" (2/3) ... [2024-12-02 11:33:12,875 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c18288 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 11:33:12, skipping insertion in model container [2024-12-02 11:33:12,875 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:33:12" (3/3) ... [2024-12-02 11:33:12,876 INFO L128 eAbstractionObserver]: Analyzing ICFG 28-race_reach_07-cond_racing2.i [2024-12-02 11:33:12,891 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 11:33:12,892 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 28-race_reach_07-cond_racing2.i that has 2 procedures, 59 locations, 1 initial locations, 6 loop locations, and 10 error locations. [2024-12-02 11:33:12,893 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-12-02 11:33:12,935 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-12-02 11:33:12,967 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 62 places, 71 transitions, 149 flow [2024-12-02 11:33:13,007 INFO L124 PetriNetUnfolderBase]: 17/97 cut-off events. [2024-12-02 11:33:13,009 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-12-02 11:33:13,013 INFO L83 FinitePrefix]: Finished finitePrefix Result has 102 conditions, 97 events. 17/97 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 296 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 62. Up to 6 conditions per place. [2024-12-02 11:33:13,013 INFO L82 GeneralOperation]: Start removeDead. Operand has 62 places, 71 transitions, 149 flow [2024-12-02 11:33:13,017 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 62 places, 70 transitions, 147 flow [2024-12-02 11:33:13,023 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 11:33:13,034 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;@45418ac3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 11:33:13,034 INFO L334 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2024-12-02 11:33:13,042 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-12-02 11:33:13,042 INFO L124 PetriNetUnfolderBase]: 1/11 cut-off events. [2024-12-02 11:33:13,042 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-12-02 11:33:13,042 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 11:33:13,043 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-12-02 11:33:13,043 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2024-12-02 11:33:13,048 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:33:13,048 INFO L85 PathProgramCache]: Analyzing trace with hash 478743003, now seen corresponding path program 1 times [2024-12-02 11:33:13,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:33:13,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587028712] [2024-12-02 11:33:13,056 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:33:13,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:33:13,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:33:13,365 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 11:33:13,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:33:13,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587028712] [2024-12-02 11:33:13,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587028712] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:33:13,366 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:33:13,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 11:33:13,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670057301] [2024-12-02 11:33:13,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:33:13,375 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 11:33:13,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:33:13,399 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 11:33:13,399 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:33:13,419 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 33 out of 71 [2024-12-02 11:33:13,422 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 70 transitions, 147 flow. Second operand has 4 states, 4 states have (on average 34.25) internal successors, (137), 4 states have internal predecessors, (137), 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 11:33:13,422 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 11:33:13,422 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 33 of 71 [2024-12-02 11:33:13,423 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 11:33:13,636 INFO L124 PetriNetUnfolderBase]: 157/480 cut-off events. [2024-12-02 11:33:13,636 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-12-02 11:33:13,638 INFO L83 FinitePrefix]: Finished finitePrefix Result has 781 conditions, 480 events. 157/480 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 2554 event pairs, 18 based on Foata normal form. 72/463 useless extension candidates. Maximal degree in co-relation 752. Up to 259 conditions per place. [2024-12-02 11:33:13,641 INFO L140 encePairwiseOnDemand]: 57/71 looper letters, 47 selfloop transitions, 3 changer transitions 0/83 dead transitions. [2024-12-02 11:33:13,642 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 83 transitions, 273 flow [2024-12-02 11:33:13,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 11:33:13,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-12-02 11:33:13,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 205 transitions. [2024-12-02 11:33:13,666 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.721830985915493 [2024-12-02 11:33:13,667 INFO L175 Difference]: Start difference. First operand has 62 places, 70 transitions, 147 flow. Second operand 4 states and 205 transitions. [2024-12-02 11:33:13,668 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 83 transitions, 273 flow [2024-12-02 11:33:13,673 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 83 transitions, 273 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-12-02 11:33:13,676 INFO L231 Difference]: Finished difference. Result has 64 places, 60 transitions, 137 flow [2024-12-02 11:33:13,678 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=71, PETRI_DIFFERENCE_MINUEND_FLOW=127, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=137, PETRI_PLACES=64, PETRI_TRANSITIONS=60} [2024-12-02 11:33:13,682 INFO L279 CegarLoopForPetriNet]: 62 programPoint places, 2 predicate places. [2024-12-02 11:33:13,682 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 60 transitions, 137 flow [2024-12-02 11:33:13,682 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.25) internal successors, (137), 4 states have internal predecessors, (137), 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 11:33:13,682 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 11:33:13,682 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2024-12-02 11:33:13,683 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 11:33:13,683 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2024-12-02 11:33:13,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:33:13,683 INFO L85 PathProgramCache]: Analyzing trace with hash -1353116397, now seen corresponding path program 1 times [2024-12-02 11:33:13,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:33:13,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079578772] [2024-12-02 11:33:13,684 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:33:13,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:33:13,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:33:13,728 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 11:33:13,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:33:13,764 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-12-02 11:33:13,765 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-02 11:33:13,766 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 15 remaining) [2024-12-02 11:33:13,768 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2024-12-02 11:33:13,768 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2024-12-02 11:33:13,768 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2024-12-02 11:33:13,768 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2024-12-02 11:33:13,768 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2024-12-02 11:33:13,768 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 15 remaining) [2024-12-02 11:33:13,768 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 15 remaining) [2024-12-02 11:33:13,768 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 15 remaining) [2024-12-02 11:33:13,769 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2024-12-02 11:33:13,769 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2024-12-02 11:33:13,769 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2024-12-02 11:33:13,769 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2024-12-02 11:33:13,769 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2024-12-02 11:33:13,769 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2024-12-02 11:33:13,769 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 11:33:13,770 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2024-12-02 11:33:13,772 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-12-02 11:33:13,772 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-12-02 11:33:13,799 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-12-02 11:33:13,801 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 90 places, 104 transitions, 224 flow [2024-12-02 11:33:13,823 INFO L124 PetriNetUnfolderBase]: 30/175 cut-off events. [2024-12-02 11:33:13,823 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-12-02 11:33:13,825 INFO L83 FinitePrefix]: Finished finitePrefix Result has 187 conditions, 175 events. 30/175 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 663 event pairs, 0 based on Foata normal form. 0/117 useless extension candidates. Maximal degree in co-relation 105. Up to 9 conditions per place. [2024-12-02 11:33:13,825 INFO L82 GeneralOperation]: Start removeDead. Operand has 90 places, 104 transitions, 224 flow [2024-12-02 11:33:13,827 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 90 places, 104 transitions, 224 flow [2024-12-02 11:33:13,828 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 11:33:13,828 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;@45418ac3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 11:33:13,828 INFO L334 AbstractCegarLoop]: Starting to check reachability of 19 error locations. [2024-12-02 11:33:13,832 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-12-02 11:33:13,832 INFO L124 PetriNetUnfolderBase]: 1/11 cut-off events. [2024-12-02 11:33:13,832 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-12-02 11:33:13,832 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 11:33:13,832 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-12-02 11:33:13,832 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-12-02 11:33:13,832 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:33:13,832 INFO L85 PathProgramCache]: Analyzing trace with hash 578020514, now seen corresponding path program 1 times [2024-12-02 11:33:13,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:33:13,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228559558] [2024-12-02 11:33:13,833 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:33:13,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:33:13,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:33:13,929 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 11:33:13,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:33:13,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228559558] [2024-12-02 11:33:13,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228559558] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:33:13,929 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:33:13,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 11:33:13,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476534976] [2024-12-02 11:33:13,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:33:13,930 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 11:33:13,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:33:13,930 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 11:33:13,930 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:33:13,936 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 104 [2024-12-02 11:33:13,937 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 104 transitions, 224 flow. Second operand has 4 states, 4 states have (on average 48.25) internal successors, (193), 4 states have internal predecessors, (193), 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 11:33:13,937 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 11:33:13,937 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 104 [2024-12-02 11:33:13,937 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 11:33:15,205 INFO L124 PetriNetUnfolderBase]: 4719/10013 cut-off events. [2024-12-02 11:33:15,205 INFO L125 PetriNetUnfolderBase]: For 92/92 co-relation queries the response was YES. [2024-12-02 11:33:15,223 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17194 conditions, 10013 events. 4719/10013 cut-off events. For 92/92 co-relation queries the response was YES. Maximal size of possible extension queue 319. Compared 85969 event pairs, 1952 based on Foata normal form. 1711/10442 useless extension candidates. Maximal degree in co-relation 1373. Up to 7077 conditions per place. [2024-12-02 11:33:15,265 INFO L140 encePairwiseOnDemand]: 84/104 looper letters, 65 selfloop transitions, 3 changer transitions 0/115 dead transitions. [2024-12-02 11:33:15,266 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 115 transitions, 382 flow [2024-12-02 11:33:15,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 11:33:15,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-12-02 11:33:15,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 285 transitions. [2024-12-02 11:33:15,268 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6850961538461539 [2024-12-02 11:33:15,268 INFO L175 Difference]: Start difference. First operand has 90 places, 104 transitions, 224 flow. Second operand 4 states and 285 transitions. [2024-12-02 11:33:15,268 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 115 transitions, 382 flow [2024-12-02 11:33:15,269 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 115 transitions, 382 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-12-02 11:33:15,271 INFO L231 Difference]: Finished difference. Result has 95 places, 92 transitions, 220 flow [2024-12-02 11:33:15,271 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=196, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=220, PETRI_PLACES=95, PETRI_TRANSITIONS=92} [2024-12-02 11:33:15,272 INFO L279 CegarLoopForPetriNet]: 90 programPoint places, 5 predicate places. [2024-12-02 11:33:15,272 INFO L471 AbstractCegarLoop]: Abstraction has has 95 places, 92 transitions, 220 flow [2024-12-02 11:33:15,272 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 48.25) internal successors, (193), 4 states have internal predecessors, (193), 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 11:33:15,273 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 11:33:15,273 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2024-12-02 11:33:15,273 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 11:33:15,273 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-12-02 11:33:15,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:33:15,273 INFO L85 PathProgramCache]: Analyzing trace with hash -1279981851, now seen corresponding path program 1 times [2024-12-02 11:33:15,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:33:15,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563114778] [2024-12-02 11:33:15,274 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:33:15,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:33:15,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:33:15,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:33:15,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:33:15,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563114778] [2024-12-02 11:33:15,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [563114778] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:33:15,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:33:15,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 11:33:15,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896204469] [2024-12-02 11:33:15,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:33:15,446 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 11:33:15,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:33:15,447 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 11:33:15,447 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 11:33:15,457 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 104 [2024-12-02 11:33:15,458 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 92 transitions, 220 flow. Second operand has 6 states, 6 states have (on average 48.5) internal successors, (291), 6 states have internal predecessors, (291), 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 11:33:15,458 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 11:33:15,458 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 104 [2024-12-02 11:33:15,458 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 11:33:16,342 INFO L124 PetriNetUnfolderBase]: 3957/8829 cut-off events. [2024-12-02 11:33:16,342 INFO L125 PetriNetUnfolderBase]: For 648/648 co-relation queries the response was YES. [2024-12-02 11:33:16,354 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15420 conditions, 8829 events. 3957/8829 cut-off events. For 648/648 co-relation queries the response was YES. Maximal size of possible extension queue 272. Compared 76633 event pairs, 252 based on Foata normal form. 144/7721 useless extension candidates. Maximal degree in co-relation 1279. Up to 3893 conditions per place. [2024-12-02 11:33:16,382 INFO L140 encePairwiseOnDemand]: 99/104 looper letters, 105 selfloop transitions, 6 changer transitions 0/158 dead transitions. [2024-12-02 11:33:16,383 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 158 transitions, 572 flow [2024-12-02 11:33:16,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 11:33:16,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-02 11:33:16,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 394 transitions. [2024-12-02 11:33:16,385 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6314102564102564 [2024-12-02 11:33:16,385 INFO L175 Difference]: Start difference. First operand has 95 places, 92 transitions, 220 flow. Second operand 6 states and 394 transitions. [2024-12-02 11:33:16,386 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 158 transitions, 572 flow [2024-12-02 11:33:16,388 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 158 transitions, 570 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-12-02 11:33:16,389 INFO L231 Difference]: Finished difference. Result has 98 places, 91 transitions, 226 flow [2024-12-02 11:33:16,389 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=226, PETRI_PLACES=98, PETRI_TRANSITIONS=91} [2024-12-02 11:33:16,390 INFO L279 CegarLoopForPetriNet]: 90 programPoint places, 8 predicate places. [2024-12-02 11:33:16,390 INFO L471 AbstractCegarLoop]: Abstraction has has 98 places, 91 transitions, 226 flow [2024-12-02 11:33:16,390 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 48.5) internal successors, (291), 6 states have internal predecessors, (291), 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 11:33:16,391 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 11:33:16,391 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:33:16,391 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 11:33:16,391 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-12-02 11:33:16,391 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:33:16,391 INFO L85 PathProgramCache]: Analyzing trace with hash -1280031799, now seen corresponding path program 1 times [2024-12-02 11:33:16,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:33:16,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504029788] [2024-12-02 11:33:16,392 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:33:16,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:33:16,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:33:16,493 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 11:33:16,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:33:16,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504029788] [2024-12-02 11:33:16,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504029788] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:33:16,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:33:16,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 11:33:16,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054276203] [2024-12-02 11:33:16,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:33:16,494 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 11:33:16,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:33:16,494 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 11:33:16,494 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 11:33:16,505 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 104 [2024-12-02 11:33:16,506 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 91 transitions, 226 flow. Second operand has 5 states, 5 states have (on average 48.4) internal successors, (242), 5 states have internal predecessors, (242), 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 11:33:16,506 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 11:33:16,506 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 104 [2024-12-02 11:33:16,506 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 11:33:17,185 INFO L124 PetriNetUnfolderBase]: 3854/8342 cut-off events. [2024-12-02 11:33:17,185 INFO L125 PetriNetUnfolderBase]: For 1271/1271 co-relation queries the response was YES. [2024-12-02 11:33:17,198 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15215 conditions, 8342 events. 3854/8342 cut-off events. For 1271/1271 co-relation queries the response was YES. Maximal size of possible extension queue 265. Compared 70548 event pairs, 265 based on Foata normal form. 12/7330 useless extension candidates. Maximal degree in co-relation 1237. Up to 4558 conditions per place. [2024-12-02 11:33:17,221 INFO L140 encePairwiseOnDemand]: 100/104 looper letters, 86 selfloop transitions, 4 changer transitions 0/137 dead transitions. [2024-12-02 11:33:17,221 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 137 transitions, 498 flow [2024-12-02 11:33:17,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 11:33:17,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-12-02 11:33:17,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 326 transitions. [2024-12-02 11:33:17,222 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6269230769230769 [2024-12-02 11:33:17,223 INFO L175 Difference]: Start difference. First operand has 98 places, 91 transitions, 226 flow. Second operand 5 states and 326 transitions. [2024-12-02 11:33:17,223 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 137 transitions, 498 flow [2024-12-02 11:33:17,226 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 137 transitions, 486 flow, removed 2 selfloop flow, removed 4 redundant places. [2024-12-02 11:33:17,228 INFO L231 Difference]: Finished difference. Result has 99 places, 91 transitions, 226 flow [2024-12-02 11:33:17,228 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=226, PETRI_PLACES=99, PETRI_TRANSITIONS=91} [2024-12-02 11:33:17,229 INFO L279 CegarLoopForPetriNet]: 90 programPoint places, 9 predicate places. [2024-12-02 11:33:17,229 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 91 transitions, 226 flow [2024-12-02 11:33:17,229 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 48.4) internal successors, (242), 5 states have internal predecessors, (242), 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 11:33:17,229 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 11:33:17,229 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:33:17,229 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 11:33:17,229 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-12-02 11:33:17,230 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:33:17,230 INFO L85 PathProgramCache]: Analyzing trace with hash -1101317411, now seen corresponding path program 1 times [2024-12-02 11:33:17,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:33:17,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131412663] [2024-12-02 11:33:17,230 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:33:17,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:33:17,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:33:17,314 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 11:33:17,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:33:17,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131412663] [2024-12-02 11:33:17,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131412663] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:33:17,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:33:17,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 11:33:17,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518289965] [2024-12-02 11:33:17,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:33:17,314 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 11:33:17,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:33:17,315 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 11:33:17,315 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:33:17,319 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 104 [2024-12-02 11:33:17,320 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 91 transitions, 226 flow. Second operand has 4 states, 4 states have (on average 49.75) internal successors, (199), 4 states have internal predecessors, (199), 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 11:33:17,320 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 11:33:17,320 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 104 [2024-12-02 11:33:17,320 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 11:33:18,180 INFO L124 PetriNetUnfolderBase]: 6093/12379 cut-off events. [2024-12-02 11:33:18,180 INFO L125 PetriNetUnfolderBase]: For 1677/1838 co-relation queries the response was YES. [2024-12-02 11:33:18,202 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22648 conditions, 12379 events. 6093/12379 cut-off events. For 1677/1838 co-relation queries the response was YES. Maximal size of possible extension queue 420. Compared 106471 event pairs, 1497 based on Foata normal form. 215/11306 useless extension candidates. Maximal degree in co-relation 18878. Up to 6273 conditions per place. [2024-12-02 11:33:18,237 INFO L140 encePairwiseOnDemand]: 95/104 looper letters, 122 selfloop transitions, 12 changer transitions 0/182 dead transitions. [2024-12-02 11:33:18,237 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 182 transitions, 740 flow [2024-12-02 11:33:18,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 11:33:18,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-12-02 11:33:18,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 375 transitions. [2024-12-02 11:33:18,238 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7211538461538461 [2024-12-02 11:33:18,239 INFO L175 Difference]: Start difference. First operand has 99 places, 91 transitions, 226 flow. Second operand 5 states and 375 transitions. [2024-12-02 11:33:18,239 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 182 transitions, 740 flow [2024-12-02 11:33:18,241 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 182 transitions, 722 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-12-02 11:33:18,243 INFO L231 Difference]: Finished difference. Result has 103 places, 102 transitions, 312 flow [2024-12-02 11:33:18,243 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=218, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=312, PETRI_PLACES=103, PETRI_TRANSITIONS=102} [2024-12-02 11:33:18,244 INFO L279 CegarLoopForPetriNet]: 90 programPoint places, 13 predicate places. [2024-12-02 11:33:18,244 INFO L471 AbstractCegarLoop]: Abstraction has has 103 places, 102 transitions, 312 flow [2024-12-02 11:33:18,244 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 49.75) internal successors, (199), 4 states have internal predecessors, (199), 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 11:33:18,244 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 11:33:18,244 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2024-12-02 11:33:18,244 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 11:33:18,244 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-12-02 11:33:18,245 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:33:18,245 INFO L85 PathProgramCache]: Analyzing trace with hash -1024731140, now seen corresponding path program 1 times [2024-12-02 11:33:18,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:33:18,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035287841] [2024-12-02 11:33:18,245 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:33:18,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:33:18,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:33:18,310 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 11:33:18,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:33:18,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035287841] [2024-12-02 11:33:18,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2035287841] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:33:18,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:33:18,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:33:18,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206984203] [2024-12-02 11:33:18,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:33:18,311 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 11:33:18,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:33:18,311 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 11:33:18,311 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:33:18,316 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 104 [2024-12-02 11:33:18,317 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 102 transitions, 312 flow. Second operand has 4 states, 4 states have (on average 49.25) internal successors, (197), 4 states have internal predecessors, (197), 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 11:33:18,317 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 11:33:18,317 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 104 [2024-12-02 11:33:18,317 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 11:33:19,320 INFO L124 PetriNetUnfolderBase]: 5231/11685 cut-off events. [2024-12-02 11:33:19,321 INFO L125 PetriNetUnfolderBase]: For 3631/3636 co-relation queries the response was YES. [2024-12-02 11:33:19,340 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23034 conditions, 11685 events. 5231/11685 cut-off events. For 3631/3636 co-relation queries the response was YES. Maximal size of possible extension queue 359. Compared 104828 event pairs, 553 based on Foata normal form. 160/10361 useless extension candidates. Maximal degree in co-relation 19904. Up to 6842 conditions per place. [2024-12-02 11:33:19,369 INFO L140 encePairwiseOnDemand]: 99/104 looper letters, 103 selfloop transitions, 6 changer transitions 0/156 dead transitions. [2024-12-02 11:33:19,369 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 156 transitions, 700 flow [2024-12-02 11:33:19,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 11:33:19,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-12-02 11:33:19,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 275 transitions. [2024-12-02 11:33:19,371 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6610576923076923 [2024-12-02 11:33:19,371 INFO L175 Difference]: Start difference. First operand has 103 places, 102 transitions, 312 flow. Second operand 4 states and 275 transitions. [2024-12-02 11:33:19,371 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 156 transitions, 700 flow [2024-12-02 11:33:19,379 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 156 transitions, 696 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-12-02 11:33:19,381 INFO L231 Difference]: Finished difference. Result has 105 places, 102 transitions, 324 flow [2024-12-02 11:33:19,381 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=304, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=324, PETRI_PLACES=105, PETRI_TRANSITIONS=102} [2024-12-02 11:33:19,382 INFO L279 CegarLoopForPetriNet]: 90 programPoint places, 15 predicate places. [2024-12-02 11:33:19,382 INFO L471 AbstractCegarLoop]: Abstraction has has 105 places, 102 transitions, 324 flow [2024-12-02 11:33:19,382 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 49.25) internal successors, (197), 4 states have internal predecessors, (197), 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 11:33:19,382 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 11:33:19,382 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1] [2024-12-02 11:33:19,383 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 11:33:19,383 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-12-02 11:33:19,383 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:33:19,383 INFO L85 PathProgramCache]: Analyzing trace with hash -1219094704, now seen corresponding path program 1 times [2024-12-02 11:33:19,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:33:19,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915081285] [2024-12-02 11:33:19,383 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:33:19,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:33:19,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:33:19,417 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 11:33:19,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:33:19,434 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-12-02 11:33:19,434 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-02 11:33:19,435 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 19 remaining) [2024-12-02 11:33:19,435 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 19 remaining) [2024-12-02 11:33:19,435 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 19 remaining) [2024-12-02 11:33:19,435 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 19 remaining) [2024-12-02 11:33:19,435 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 19 remaining) [2024-12-02 11:33:19,435 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 19 remaining) [2024-12-02 11:33:19,435 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 19 remaining) [2024-12-02 11:33:19,435 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 19 remaining) [2024-12-02 11:33:19,435 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 19 remaining) [2024-12-02 11:33:19,435 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 19 remaining) [2024-12-02 11:33:19,436 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 19 remaining) [2024-12-02 11:33:19,436 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 19 remaining) [2024-12-02 11:33:19,436 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 19 remaining) [2024-12-02 11:33:19,436 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 19 remaining) [2024-12-02 11:33:19,436 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 19 remaining) [2024-12-02 11:33:19,436 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 19 remaining) [2024-12-02 11:33:19,436 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 19 remaining) [2024-12-02 11:33:19,436 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 19 remaining) [2024-12-02 11:33:19,436 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 19 remaining) [2024-12-02 11:33:19,436 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 11:33:19,436 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-12-02 11:33:19,437 WARN L246 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-12-02 11:33:19,437 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-12-02 11:33:19,467 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-12-02 11:33:19,471 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 118 places, 137 transitions, 301 flow [2024-12-02 11:33:19,492 INFO L124 PetriNetUnfolderBase]: 46/272 cut-off events. [2024-12-02 11:33:19,492 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-12-02 11:33:19,493 INFO L83 FinitePrefix]: Finished finitePrefix Result has 297 conditions, 272 events. 46/272 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1124 event pairs, 1 based on Foata normal form. 0/182 useless extension candidates. Maximal degree in co-relation 190. Up to 12 conditions per place. [2024-12-02 11:33:19,493 INFO L82 GeneralOperation]: Start removeDead. Operand has 118 places, 137 transitions, 301 flow [2024-12-02 11:33:19,495 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 118 places, 137 transitions, 301 flow [2024-12-02 11:33:19,496 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 11:33:19,497 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;@45418ac3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 11:33:19,497 INFO L334 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2024-12-02 11:33:19,500 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-12-02 11:33:19,500 INFO L124 PetriNetUnfolderBase]: 1/10 cut-off events. [2024-12-02 11:33:19,500 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-12-02 11:33:19,500 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 11:33:19,500 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-12-02 11:33:19,500 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-12-02 11:33:19,501 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:33:19,501 INFO L85 PathProgramCache]: Analyzing trace with hash 708790090, now seen corresponding path program 1 times [2024-12-02 11:33:19,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:33:19,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012003537] [2024-12-02 11:33:19,501 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:33:19,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:33:19,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:33:19,560 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 11:33:19,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:33:19,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012003537] [2024-12-02 11:33:19,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012003537] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:33:19,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:33:19,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 11:33:19,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317980544] [2024-12-02 11:33:19,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:33:19,561 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 11:33:19,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:33:19,561 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 11:33:19,561 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:33:19,565 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 137 [2024-12-02 11:33:19,566 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 137 transitions, 301 flow. Second operand has 4 states, 4 states have (on average 62.25) internal successors, (249), 4 states have internal predecessors, (249), 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 11:33:19,566 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 11:33:19,566 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 137 [2024-12-02 11:33:19,566 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 11:33:28,715 INFO L124 PetriNetUnfolderBase]: 87851/154955 cut-off events. [2024-12-02 11:33:28,715 INFO L125 PetriNetUnfolderBase]: For 1911/1911 co-relation queries the response was YES. [2024-12-02 11:33:28,921 INFO L83 FinitePrefix]: Finished finitePrefix Result has 275078 conditions, 154955 events. 87851/154955 cut-off events. For 1911/1911 co-relation queries the response was YES. Maximal size of possible extension queue 3677. Compared 1614692 event pairs, 52468 based on Foata normal form. 31160/170369 useless extension candidates. Maximal degree in co-relation 17993. Up to 118961 conditions per place. [2024-12-02 11:33:29,265 INFO L140 encePairwiseOnDemand]: 111/137 looper letters, 78 selfloop transitions, 3 changer transitions 0/142 dead transitions. [2024-12-02 11:33:29,265 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 142 transitions, 473 flow [2024-12-02 11:33:29,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 11:33:29,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-12-02 11:33:29,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 360 transitions. [2024-12-02 11:33:29,267 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.656934306569343 [2024-12-02 11:33:29,267 INFO L175 Difference]: Start difference. First operand has 118 places, 137 transitions, 301 flow. Second operand 4 states and 360 transitions. [2024-12-02 11:33:29,267 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 142 transitions, 473 flow [2024-12-02 11:33:29,270 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 142 transitions, 473 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-12-02 11:33:29,272 INFO L231 Difference]: Finished difference. Result has 123 places, 119 transitions, 285 flow [2024-12-02 11:33:29,272 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=261, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=285, PETRI_PLACES=123, PETRI_TRANSITIONS=119} [2024-12-02 11:33:29,273 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 5 predicate places. [2024-12-02 11:33:29,273 INFO L471 AbstractCegarLoop]: Abstraction has has 123 places, 119 transitions, 285 flow [2024-12-02 11:33:29,273 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 62.25) internal successors, (249), 4 states have internal predecessors, (249), 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 11:33:29,273 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 11:33:29,273 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:33:29,273 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 11:33:29,273 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-12-02 11:33:29,274 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:33:29,274 INFO L85 PathProgramCache]: Analyzing trace with hash 2079051900, now seen corresponding path program 1 times [2024-12-02 11:33:29,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:33:29,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680675108] [2024-12-02 11:33:29,274 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:33:29,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:33:29,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:33:29,342 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 11:33:29,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:33:29,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680675108] [2024-12-02 11:33:29,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680675108] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:33:29,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:33:29,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 11:33:29,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27341743] [2024-12-02 11:33:29,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:33:29,344 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 11:33:29,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:33:29,344 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 11:33:29,345 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:33:29,348 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 137 [2024-12-02 11:33:29,348 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 119 transitions, 285 flow. Second operand has 4 states, 4 states have (on average 63.75) internal successors, (255), 4 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:33:29,348 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 11:33:29,348 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 137 [2024-12-02 11:33:29,348 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 11:33:42,542 INFO L124 PetriNetUnfolderBase]: 124373/213784 cut-off events. [2024-12-02 11:33:42,542 INFO L125 PetriNetUnfolderBase]: For 7138/11655 co-relation queries the response was YES. [2024-12-02 11:33:42,932 INFO L83 FinitePrefix]: Finished finitePrefix Result has 389248 conditions, 213784 events. 124373/213784 cut-off events. For 7138/11655 co-relation queries the response was YES. Maximal size of possible extension queue 4999. Compared 2236980 event pairs, 39414 based on Foata normal form. 3016/196622 useless extension candidates. Maximal degree in co-relation 389146. Up to 117315 conditions per place. [2024-12-02 11:33:43,422 INFO L140 encePairwiseOnDemand]: 126/137 looper letters, 174 selfloop transitions, 16 changer transitions 0/253 dead transitions. [2024-12-02 11:33:43,422 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 253 transitions, 1003 flow [2024-12-02 11:33:43,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 11:33:43,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-12-02 11:33:43,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 501 transitions. [2024-12-02 11:33:43,425 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7313868613138687 [2024-12-02 11:33:43,425 INFO L175 Difference]: Start difference. First operand has 123 places, 119 transitions, 285 flow. Second operand 5 states and 501 transitions. [2024-12-02 11:33:43,425 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 253 transitions, 1003 flow [2024-12-02 11:33:43,433 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 253 transitions, 999 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-12-02 11:33:43,435 INFO L231 Difference]: Finished difference. Result has 130 places, 134 transitions, 411 flow [2024-12-02 11:33:43,435 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=283, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=411, PETRI_PLACES=130, PETRI_TRANSITIONS=134} [2024-12-02 11:33:43,435 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 12 predicate places. [2024-12-02 11:33:43,435 INFO L471 AbstractCegarLoop]: Abstraction has has 130 places, 134 transitions, 411 flow [2024-12-02 11:33:43,435 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 63.75) internal successors, (255), 4 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:33:43,435 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 11:33:43,436 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2024-12-02 11:33:43,436 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 11:33:43,436 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-12-02 11:33:43,436 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:33:43,436 INFO L85 PathProgramCache]: Analyzing trace with hash 875589605, now seen corresponding path program 1 times [2024-12-02 11:33:43,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:33:43,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644060412] [2024-12-02 11:33:43,436 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:33:43,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:33:43,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:33:43,516 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 11:33:43,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:33:43,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644060412] [2024-12-02 11:33:43,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [644060412] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:33:43,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:33:43,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 11:33:43,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338329442] [2024-12-02 11:33:43,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:33:43,517 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 11:33:43,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:33:43,517 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 11:33:43,517 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 11:33:43,532 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 137 [2024-12-02 11:33:43,532 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 134 transitions, 411 flow. Second operand has 6 states, 6 states have (on average 62.5) internal successors, (375), 6 states have internal predecessors, (375), 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 11:33:43,532 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 11:33:43,532 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 137 [2024-12-02 11:33:43,532 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 11:33:57,773 INFO L124 PetriNetUnfolderBase]: 112811/208048 cut-off events. [2024-12-02 11:33:57,773 INFO L125 PetriNetUnfolderBase]: For 70625/70676 co-relation queries the response was YES. [2024-12-02 11:33:58,228 INFO L83 FinitePrefix]: Finished finitePrefix Result has 424025 conditions, 208048 events. 112811/208048 cut-off events. For 70625/70676 co-relation queries the response was YES. Maximal size of possible extension queue 4726. Compared 2342372 event pairs, 13383 based on Foata normal form. 2208/185352 useless extension candidates. Maximal degree in co-relation 347661. Up to 117589 conditions per place. [2024-12-02 11:33:58,838 INFO L140 encePairwiseOnDemand]: 132/137 looper letters, 169 selfloop transitions, 6 changer transitions 0/236 dead transitions. [2024-12-02 11:33:58,838 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 236 transitions, 1083 flow [2024-12-02 11:33:58,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 11:33:58,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-02 11:33:58,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 513 transitions. [2024-12-02 11:33:58,840 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6240875912408759 [2024-12-02 11:33:58,840 INFO L175 Difference]: Start difference. First operand has 130 places, 134 transitions, 411 flow. Second operand 6 states and 513 transitions. [2024-12-02 11:33:58,840 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 236 transitions, 1083 flow [2024-12-02 11:33:58,885 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 236 transitions, 1083 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-12-02 11:33:58,888 INFO L231 Difference]: Finished difference. Result has 134 places, 133 transitions, 419 flow [2024-12-02 11:33:58,888 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=407, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=419, PETRI_PLACES=134, PETRI_TRANSITIONS=133} [2024-12-02 11:33:58,889 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 16 predicate places. [2024-12-02 11:33:58,889 INFO L471 AbstractCegarLoop]: Abstraction has has 134 places, 133 transitions, 419 flow [2024-12-02 11:33:58,889 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 62.5) internal successors, (375), 6 states have internal predecessors, (375), 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 11:33:58,890 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 11:33:58,890 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:33:58,890 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 11:33:58,890 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-12-02 11:33:58,890 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:33:58,890 INFO L85 PathProgramCache]: Analyzing trace with hash 875509866, now seen corresponding path program 1 times [2024-12-02 11:33:58,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:33:58,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963518995] [2024-12-02 11:33:58,890 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:33:58,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:33:58,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:33:58,978 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 11:33:58,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:33:58,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963518995] [2024-12-02 11:33:58,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963518995] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:33:58,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:33:58,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 11:33:58,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655271061] [2024-12-02 11:33:58,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:33:58,978 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 11:33:58,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:33:58,979 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 11:33:58,979 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 11:33:58,988 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 137 [2024-12-02 11:33:58,989 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 133 transitions, 419 flow. Second operand has 5 states, 5 states have (on average 62.4) internal successors, (312), 5 states have internal predecessors, (312), 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 11:33:58,989 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 11:33:58,989 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 137 [2024-12-02 11:33:58,989 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 11:34:14,374 INFO L124 PetriNetUnfolderBase]: 123092/220396 cut-off events. [2024-12-02 11:34:14,374 INFO L125 PetriNetUnfolderBase]: For 92537/92971 co-relation queries the response was YES. [2024-12-02 11:34:14,853 INFO L83 FinitePrefix]: Finished finitePrefix Result has 460176 conditions, 220396 events. 123092/220396 cut-off events. For 92537/92971 co-relation queries the response was YES. Maximal size of possible extension queue 5173. Compared 2423344 event pairs, 37193 based on Foata normal form. 44/200075 useless extension candidates. Maximal degree in co-relation 387762. Up to 166871 conditions per place. [2024-12-02 11:34:15,398 INFO L140 encePairwiseOnDemand]: 133/137 looper letters, 122 selfloop transitions, 4 changer transitions 0/187 dead transitions. [2024-12-02 11:34:15,398 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 187 transitions, 843 flow [2024-12-02 11:34:15,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 11:34:15,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-12-02 11:34:15,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 412 transitions. [2024-12-02 11:34:15,399 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6014598540145986 [2024-12-02 11:34:15,399 INFO L175 Difference]: Start difference. First operand has 134 places, 133 transitions, 419 flow. Second operand 5 states and 412 transitions. [2024-12-02 11:34:15,399 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 187 transitions, 843 flow [2024-12-02 11:34:15,473 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 187 transitions, 829 flow, removed 3 selfloop flow, removed 4 redundant places. [2024-12-02 11:34:15,474 INFO L231 Difference]: Finished difference. Result has 135 places, 134 transitions, 427 flow [2024-12-02 11:34:15,474 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=407, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=427, PETRI_PLACES=135, PETRI_TRANSITIONS=134} [2024-12-02 11:34:15,474 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 17 predicate places. [2024-12-02 11:34:15,474 INFO L471 AbstractCegarLoop]: Abstraction has has 135 places, 134 transitions, 427 flow [2024-12-02 11:34:15,475 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 62.4) internal successors, (312), 5 states have internal predecessors, (312), 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 11:34:15,475 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 11:34:15,475 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2024-12-02 11:34:15,475 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 11:34:15,475 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-12-02 11:34:15,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:34:15,475 INFO L85 PathProgramCache]: Analyzing trace with hash 1373474693, now seen corresponding path program 1 times [2024-12-02 11:34:15,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:34:15,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163759343] [2024-12-02 11:34:15,475 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:34:15,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:34:15,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:34:15,525 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 11:34:15,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:34:15,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163759343] [2024-12-02 11:34:15,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163759343] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:34:15,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:34:15,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:34:15,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34966914] [2024-12-02 11:34:15,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:34:15,526 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 11:34:15,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:34:15,526 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 11:34:15,526 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:34:15,533 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 137 [2024-12-02 11:34:15,533 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 134 transitions, 427 flow. Second operand has 4 states, 4 states have (on average 63.25) internal successors, (253), 4 states have internal predecessors, (253), 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 11:34:15,533 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 11:34:15,533 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 137 [2024-12-02 11:34:15,534 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 11:34:28,491 INFO L124 PetriNetUnfolderBase]: 108116/199361 cut-off events. [2024-12-02 11:34:28,491 INFO L125 PetriNetUnfolderBase]: For 78885/78912 co-relation queries the response was YES. [2024-12-02 11:34:28,934 INFO L83 FinitePrefix]: Finished finitePrefix Result has 408432 conditions, 199361 events. 108116/199361 cut-off events. For 78885/78912 co-relation queries the response was YES. Maximal size of possible extension queue 4615. Compared 2223241 event pairs, 10684 based on Foata normal form. 2136/179370 useless extension candidates. Maximal degree in co-relation 338115. Up to 126793 conditions per place. [2024-12-02 11:34:29,399 INFO L140 encePairwiseOnDemand]: 132/137 looper letters, 146 selfloop transitions, 7 changer transitions 0/214 dead transitions. [2024-12-02 11:34:29,399 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 214 transitions, 991 flow [2024-12-02 11:34:29,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 11:34:29,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-12-02 11:34:29,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 366 transitions. [2024-12-02 11:34:29,401 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6678832116788321 [2024-12-02 11:34:29,401 INFO L175 Difference]: Start difference. First operand has 135 places, 134 transitions, 427 flow. Second operand 4 states and 366 transitions. [2024-12-02 11:34:29,401 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 214 transitions, 991 flow [2024-12-02 11:34:29,491 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 214 transitions, 979 flow, removed 2 selfloop flow, removed 4 redundant places. [2024-12-02 11:34:29,493 INFO L231 Difference]: Finished difference. Result has 134 places, 134 transitions, 434 flow [2024-12-02 11:34:29,493 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=411, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=434, PETRI_PLACES=134, PETRI_TRANSITIONS=134} [2024-12-02 11:34:29,493 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 16 predicate places. [2024-12-02 11:34:29,493 INFO L471 AbstractCegarLoop]: Abstraction has has 134 places, 134 transitions, 434 flow [2024-12-02 11:34:29,494 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 63.25) internal successors, (253), 4 states have internal predecessors, (253), 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 11:34:29,494 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 11:34:29,494 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:34:29,494 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 11:34:29,494 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-12-02 11:34:29,494 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:34:29,494 INFO L85 PathProgramCache]: Analyzing trace with hash 53885103, now seen corresponding path program 1 times [2024-12-02 11:34:29,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:34:29,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755498385] [2024-12-02 11:34:29,494 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:34:29,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:34:29,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:34:29,546 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 11:34:29,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:34:29,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755498385] [2024-12-02 11:34:29,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755498385] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:34:29,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:34:29,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-12-02 11:34:29,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52661557] [2024-12-02 11:34:29,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:34:29,546 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:34:29,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:34:29,547 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:34:29,547 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:34:29,557 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 137 [2024-12-02 11:34:29,558 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 134 transitions, 434 flow. Second operand has 3 states, 3 states have (on average 62.0) internal successors, (186), 3 states have internal predecessors, (186), 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 11:34:29,558 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 11:34:29,558 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 137 [2024-12-02 11:34:29,558 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 11:34:44,174 INFO L124 PetriNetUnfolderBase]: 126061/218301 cut-off events. [2024-12-02 11:34:44,174 INFO L125 PetriNetUnfolderBase]: For 107095/107748 co-relation queries the response was YES. [2024-12-02 11:34:44,690 INFO L83 FinitePrefix]: Finished finitePrefix Result has 463637 conditions, 218301 events. 126061/218301 cut-off events. For 107095/107748 co-relation queries the response was YES. Maximal size of possible extension queue 4957. Compared 2293641 event pairs, 95933 based on Foata normal form. 2157/206040 useless extension candidates. Maximal degree in co-relation 392224. Up to 155552 conditions per place. [2024-12-02 11:34:45,465 INFO L140 encePairwiseOnDemand]: 134/137 looper letters, 119 selfloop transitions, 2 changer transitions 0/179 dead transitions. [2024-12-02 11:34:45,466 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 179 transitions, 840 flow [2024-12-02 11:34:45,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:34:45,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-02 11:34:45,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 268 transitions. [2024-12-02 11:34:45,467 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6520681265206812 [2024-12-02 11:34:45,467 INFO L175 Difference]: Start difference. First operand has 134 places, 134 transitions, 434 flow. Second operand 3 states and 268 transitions. [2024-12-02 11:34:45,467 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 179 transitions, 840 flow [2024-12-02 11:34:45,552 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 179 transitions, 831 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-12-02 11:34:45,553 INFO L231 Difference]: Finished difference. Result has 133 places, 133 transitions, 427 flow [2024-12-02 11:34:45,553 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=423, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=427, PETRI_PLACES=133, PETRI_TRANSITIONS=133} [2024-12-02 11:34:45,553 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 15 predicate places. [2024-12-02 11:34:45,554 INFO L471 AbstractCegarLoop]: Abstraction has has 133 places, 133 transitions, 427 flow [2024-12-02 11:34:45,554 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.0) internal successors, (186), 3 states have internal predecessors, (186), 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 11:34:45,554 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 11:34:45,554 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:34:45,554 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 11:34:45,554 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-12-02 11:34:45,554 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:34:45,555 INFO L85 PathProgramCache]: Analyzing trace with hash 232599491, now seen corresponding path program 1 times [2024-12-02 11:34:45,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:34:45,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572285411] [2024-12-02 11:34:45,555 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:34:45,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:34:45,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:34:45,602 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 11:34:45,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:34:45,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572285411] [2024-12-02 11:34:45,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572285411] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:34:45,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:34:45,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 11:34:45,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59705030] [2024-12-02 11:34:45,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:34:45,603 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 11:34:45,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:34:45,604 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 11:34:45,604 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:34:45,606 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 137 [2024-12-02 11:34:45,607 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 133 transitions, 427 flow. Second operand has 4 states, 4 states have (on average 64.25) internal successors, (257), 4 states have internal predecessors, (257), 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 11:34:45,607 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 11:34:45,607 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 137 [2024-12-02 11:34:45,607 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 11:35:01,765 INFO L124 PetriNetUnfolderBase]: 137999/237947 cut-off events. [2024-12-02 11:35:01,765 INFO L125 PetriNetUnfolderBase]: For 116181/116777 co-relation queries the response was YES. [2024-12-02 11:35:02,316 INFO L83 FinitePrefix]: Finished finitePrefix Result has 512237 conditions, 237947 events. 137999/237947 cut-off events. For 116181/116777 co-relation queries the response was YES. Maximal size of possible extension queue 5748. Compared 2538332 event pairs, 45124 based on Foata normal form. 6690/234540 useless extension candidates. Maximal degree in co-relation 446956. Up to 131862 conditions per place. [2024-12-02 11:35:02,915 INFO L140 encePairwiseOnDemand]: 126/137 looper letters, 179 selfloop transitions, 27 changer transitions 0/266 dead transitions. [2024-12-02 11:35:02,915 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 266 transitions, 1289 flow [2024-12-02 11:35:02,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 11:35:02,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-12-02 11:35:02,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 500 transitions. [2024-12-02 11:35:02,916 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7299270072992701 [2024-12-02 11:35:02,917 INFO L175 Difference]: Start difference. First operand has 133 places, 133 transitions, 427 flow. Second operand 5 states and 500 transitions. [2024-12-02 11:35:02,917 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 266 transitions, 1289 flow [2024-12-02 11:35:11,194 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 266 transitions, 1279 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-12-02 11:35:11,197 INFO L231 Difference]: Finished difference. Result has 138 places, 146 transitions, 600 flow [2024-12-02 11:35:11,197 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=423, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=600, PETRI_PLACES=138, PETRI_TRANSITIONS=146} [2024-12-02 11:35:11,197 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 20 predicate places. [2024-12-02 11:35:11,197 INFO L471 AbstractCegarLoop]: Abstraction has has 138 places, 146 transitions, 600 flow [2024-12-02 11:35:11,197 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 64.25) internal successors, (257), 4 states have internal predecessors, (257), 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 11:35:11,197 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 11:35:11,197 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:35:11,197 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 11:35:11,198 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-12-02 11:35:11,198 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:35:11,198 INFO L85 PathProgramCache]: Analyzing trace with hash 1670438969, now seen corresponding path program 1 times [2024-12-02 11:35:11,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:35:11,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098110344] [2024-12-02 11:35:11,198 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:35:11,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:35:11,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:35:11,246 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 11:35:11,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:35:11,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098110344] [2024-12-02 11:35:11,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098110344] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:35:11,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:35:11,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 11:35:11,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237901590] [2024-12-02 11:35:11,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:35:11,247 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:35:11,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:35:11,247 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:35:11,248 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:35:11,262 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 137 [2024-12-02 11:35:11,262 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 146 transitions, 600 flow. Second operand has 3 states, 3 states have (on average 62.0) internal successors, (186), 3 states have internal predecessors, (186), 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 11:35:11,262 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 11:35:11,262 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 137 [2024-12-02 11:35:11,262 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 11:35:40,128 INFO L124 PetriNetUnfolderBase]: 229120/393889 cut-off events. [2024-12-02 11:35:40,128 INFO L125 PetriNetUnfolderBase]: For 271388/277163 co-relation queries the response was YES. [2024-12-02 11:35:41,204 INFO L83 FinitePrefix]: Finished finitePrefix Result has 891648 conditions, 393889 events. 229120/393889 cut-off events. For 271388/277163 co-relation queries the response was YES. Maximal size of possible extension queue 8904. Compared 4383290 event pairs, 110403 based on Foata normal form. 2405/372876 useless extension candidates. Maximal degree in co-relation 705669. Up to 175971 conditions per place. [2024-12-02 11:35:42,536 INFO L140 encePairwiseOnDemand]: 132/137 looper letters, 159 selfloop transitions, 4 changer transitions 0/221 dead transitions. [2024-12-02 11:35:42,536 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 221 transitions, 1311 flow [2024-12-02 11:35:42,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:35:42,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-02 11:35:42,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 282 transitions. [2024-12-02 11:35:42,537 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6861313868613139 [2024-12-02 11:35:42,537 INFO L175 Difference]: Start difference. First operand has 138 places, 146 transitions, 600 flow. Second operand 3 states and 282 transitions. [2024-12-02 11:35:42,537 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 221 transitions, 1311 flow [2024-12-02 11:35:43,203 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 221 transitions, 1311 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-12-02 11:35:43,204 INFO L231 Difference]: Finished difference. Result has 142 places, 149 transitions, 630 flow [2024-12-02 11:35:43,205 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=600, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=630, PETRI_PLACES=142, PETRI_TRANSITIONS=149} [2024-12-02 11:35:43,205 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 24 predicate places. [2024-12-02 11:35:43,205 INFO L471 AbstractCegarLoop]: Abstraction has has 142 places, 149 transitions, 630 flow [2024-12-02 11:35:43,205 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.0) internal successors, (186), 3 states have internal predecessors, (186), 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 11:35:43,205 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 11:35:43,205 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 11:35:43,205 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-02 11:35:43,205 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-12-02 11:35:43,205 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:35:43,205 INFO L85 PathProgramCache]: Analyzing trace with hash 489465720, now seen corresponding path program 1 times [2024-12-02 11:35:43,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:35:43,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306756069] [2024-12-02 11:35:43,205 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:35:43,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:35:43,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:35:43,282 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 11:35:43,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:35:43,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306756069] [2024-12-02 11:35:43,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306756069] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:35:43,283 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:35:43,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 11:35:43,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022906092] [2024-12-02 11:35:43,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:35:43,283 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 11:35:43,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:35:43,284 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 11:35:43,284 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 11:35:43,298 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 137 [2024-12-02 11:35:43,298 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 149 transitions, 630 flow. Second operand has 6 states, 6 states have (on average 61.833333333333336) internal successors, (371), 6 states have internal predecessors, (371), 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 11:35:43,298 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 11:35:43,299 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 137 [2024-12-02 11:35:43,299 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 11:36:22,390 INFO L124 PetriNetUnfolderBase]: 304264/511111 cut-off events. [2024-12-02 11:36:22,390 INFO L125 PetriNetUnfolderBase]: For 412134/422380 co-relation queries the response was YES. [2024-12-02 11:36:23,987 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1198056 conditions, 511111 events. 304264/511111 cut-off events. For 412134/422380 co-relation queries the response was YES. Maximal size of possible extension queue 12403. Compared 5750006 event pairs, 62891 based on Foata normal form. 10268/508654 useless extension candidates. Maximal degree in co-relation 887400. Up to 205007 conditions per place. [2024-12-02 11:36:25,564 INFO L140 encePairwiseOnDemand]: 125/137 looper letters, 333 selfloop transitions, 52 changer transitions 0/445 dead transitions. [2024-12-02 11:36:25,564 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 445 transitions, 2472 flow [2024-12-02 11:36:25,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 11:36:25,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-12-02 11:36:25,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 889 transitions. [2024-12-02 11:36:25,567 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7210056772100568 [2024-12-02 11:36:25,567 INFO L175 Difference]: Start difference. First operand has 142 places, 149 transitions, 630 flow. Second operand 9 states and 889 transitions. [2024-12-02 11:36:25,567 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 445 transitions, 2472 flow [2024-12-02 11:36:30,778 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 445 transitions, 2450 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-12-02 11:36:30,780 INFO L231 Difference]: Finished difference. Result has 154 places, 174 transitions, 1019 flow [2024-12-02 11:36:30,781 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=622, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1019, PETRI_PLACES=154, PETRI_TRANSITIONS=174} [2024-12-02 11:36:30,781 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 36 predicate places. [2024-12-02 11:36:30,781 INFO L471 AbstractCegarLoop]: Abstraction has has 154 places, 174 transitions, 1019 flow [2024-12-02 11:36:30,781 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 61.833333333333336) internal successors, (371), 6 states have internal predecessors, (371), 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 11:36:30,781 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 11:36:30,781 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:36:30,782 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-12-02 11:36:30,782 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-12-02 11:36:30,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:36:30,782 INFO L85 PathProgramCache]: Analyzing trace with hash 244290710, now seen corresponding path program 1 times [2024-12-02 11:36:30,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:36:30,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634743135] [2024-12-02 11:36:30,782 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:36:30,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:36:30,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:36:30,844 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 11:36:30,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:36:30,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634743135] [2024-12-02 11:36:30,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634743135] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:36:30,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:36:30,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 11:36:30,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363580693] [2024-12-02 11:36:30,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:36:30,845 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 11:36:30,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:36:30,845 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 11:36:30,845 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 11:36:30,852 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 137 [2024-12-02 11:36:30,852 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 174 transitions, 1019 flow. Second operand has 7 states, 7 states have (on average 62.714285714285715) internal successors, (439), 7 states have internal predecessors, (439), 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 11:36:30,852 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 11:36:30,852 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 137 [2024-12-02 11:36:30,852 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand