./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_06-cond_racing1.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_53518c6b-c0e3-4d20-8b67-e63169015b32/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53518c6b-c0e3-4d20-8b67-e63169015b32/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_53518c6b-c0e3-4d20-8b67-e63169015b32/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53518c6b-c0e3-4d20-8b67-e63169015b32/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_06-cond_racing1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53518c6b-c0e3-4d20-8b67-e63169015b32/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_53518c6b-c0e3-4d20-8b67-e63169015b32/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 830cb16a3cbc120e059f0ed7638e33ed20360a11f425952cf536aa3d659b86fc --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 05:49:41,291 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 05:49:41,348 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53518c6b-c0e3-4d20-8b67-e63169015b32/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-12-02 05:49:41,352 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 05:49:41,353 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 05:49:41,373 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 05:49:41,374 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 05:49:41,374 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 05:49:41,375 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 05:49:41,375 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 05:49:41,375 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 05:49:41,375 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 05:49:41,375 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 05:49:41,375 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 05:49:41,375 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 05:49:41,376 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 05:49:41,376 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 05:49:41,376 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 05:49:41,376 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 05:49:41,376 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 05:49:41,376 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 05:49:41,376 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 05:49:41,376 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 05:49:41,376 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 05:49:41,376 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-02 05:49:41,376 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-02 05:49:41,376 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 05:49:41,377 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 05:49:41,377 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 05:49:41,377 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 05:49:41,377 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 05:49:41,377 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 05:49:41,377 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 05:49:41,377 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 05:49:41,377 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 05:49:41,377 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 05:49:41,377 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 05:49:41,377 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 05:49:41,377 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 05:49:41,378 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 05:49:41,378 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 05:49:41,378 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 05:49:41,378 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 05:49:41,378 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 05:49:41,378 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 05:49:41,378 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 05:49:41,378 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 05:49:41,378 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 05:49:41,378 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 05:49:41,378 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 05:49:41,378 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_53518c6b-c0e3-4d20-8b67-e63169015b32/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 -> 830cb16a3cbc120e059f0ed7638e33ed20360a11f425952cf536aa3d659b86fc [2024-12-02 05:49:41,626 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 05:49:41,634 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 05:49:41,636 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 05:49:41,637 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 05:49:41,637 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 05:49:41,639 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53518c6b-c0e3-4d20-8b67-e63169015b32/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/goblint-regression/28-race_reach_06-cond_racing1.i [2024-12-02 05:49:44,330 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53518c6b-c0e3-4d20-8b67-e63169015b32/bin/uautomizer-verify-84ZbGMXZE1/data/8cdf20ff2/e7bbc454d19540419ec033a02260024b/FLAG35d73b888 [2024-12-02 05:49:44,580 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 05:49:44,580 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53518c6b-c0e3-4d20-8b67-e63169015b32/sv-benchmarks/c/goblint-regression/28-race_reach_06-cond_racing1.i [2024-12-02 05:49:44,594 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53518c6b-c0e3-4d20-8b67-e63169015b32/bin/uautomizer-verify-84ZbGMXZE1/data/8cdf20ff2/e7bbc454d19540419ec033a02260024b/FLAG35d73b888 [2024-12-02 05:49:44,608 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53518c6b-c0e3-4d20-8b67-e63169015b32/bin/uautomizer-verify-84ZbGMXZE1/data/8cdf20ff2/e7bbc454d19540419ec033a02260024b [2024-12-02 05:49:44,610 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 05:49:44,611 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 05:49:44,613 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 05:49:44,613 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 05:49:44,617 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 05:49:44,618 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 05:49:44" (1/1) ... [2024-12-02 05:49:44,618 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b47831d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:49:44, skipping insertion in model container [2024-12-02 05:49:44,619 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 05:49:44" (1/1) ... [2024-12-02 05:49:44,646 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 05:49:45,083 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 05:49:45,099 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 05:49:45,147 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 05:49:45,190 INFO L204 MainTranslator]: Completed translation [2024-12-02 05:49:45,191 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:49:45 WrapperNode [2024-12-02 05:49:45,191 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 05:49:45,192 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 05:49:45,192 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 05:49:45,192 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 05:49:45,198 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:49:45" (1/1) ... [2024-12-02 05:49:45,210 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:49:45" (1/1) ... [2024-12-02 05:49:45,228 INFO L138 Inliner]: procedures = 271, calls = 42, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 97 [2024-12-02 05:49:45,229 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 05:49:45,229 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 05:49:45,229 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 05:49:45,229 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 05:49:45,236 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:49:45" (1/1) ... [2024-12-02 05:49:45,237 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:49:45" (1/1) ... [2024-12-02 05:49:45,240 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:49:45" (1/1) ... [2024-12-02 05:49:45,254 INFO L175 MemorySlicer]: Split 19 memory accesses to 5 slices as follows [2, 5, 5, 5, 2]. 26 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 5, 5, 5, 0]. The 1 writes are split as follows [0, 0, 0, 0, 1]. [2024-12-02 05:49:45,254 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:49:45" (1/1) ... [2024-12-02 05:49:45,255 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:49:45" (1/1) ... [2024-12-02 05:49:45,262 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:49:45" (1/1) ... [2024-12-02 05:49:45,263 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:49:45" (1/1) ... [2024-12-02 05:49:45,267 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:49:45" (1/1) ... [2024-12-02 05:49:45,269 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:49:45" (1/1) ... [2024-12-02 05:49:45,270 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:49:45" (1/1) ... [2024-12-02 05:49:45,273 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 05:49:45,274 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 05:49:45,274 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 05:49:45,274 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 05:49:45,275 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:49:45" (1/1) ... [2024-12-02 05:49:45,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 05:49:45,289 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53518c6b-c0e3-4d20-8b67-e63169015b32/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 05:49:45,299 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53518c6b-c0e3-4d20-8b67-e63169015b32/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 05:49:45,301 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53518c6b-c0e3-4d20-8b67-e63169015b32/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 05:49:45,324 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-12-02 05:49:45,324 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-02 05:49:45,324 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-12-02 05:49:45,324 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-12-02 05:49:45,324 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-12-02 05:49:45,324 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-12-02 05:49:45,324 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-12-02 05:49:45,324 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-12-02 05:49:45,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-12-02 05:49:45,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-12-02 05:49:45,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-12-02 05:49:45,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-12-02 05:49:45,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-12-02 05:49:45,325 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-12-02 05:49:45,325 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 05:49:45,325 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-12-02 05:49:45,325 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-12-02 05:49:45,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 05:49:45,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-02 05:49:45,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-12-02 05:49:45,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-12-02 05:49:45,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-12-02 05:49:45,326 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 05:49:45,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 05:49:45,327 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 05:49:45,438 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 05:49:45,439 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 05:49:45,651 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-12-02 05:49:45,652 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 05:49:45,792 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 05:49:45,792 INFO L312 CfgBuilder]: Removed 6 assume(true) statements. [2024-12-02 05:49:45,793 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:49:45 BoogieIcfgContainer [2024-12-02 05:49:45,793 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 05:49:45,795 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 05:49:45,795 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 05:49:45,800 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 05:49:45,800 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 05:49:44" (1/3) ... [2024-12-02 05:49:45,800 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c9a5749 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 05:49:45, skipping insertion in model container [2024-12-02 05:49:45,801 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:49:45" (2/3) ... [2024-12-02 05:49:45,801 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c9a5749 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 05:49:45, skipping insertion in model container [2024-12-02 05:49:45,801 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:49:45" (3/3) ... [2024-12-02 05:49:45,802 INFO L128 eAbstractionObserver]: Analyzing ICFG 28-race_reach_06-cond_racing1.i [2024-12-02 05:49:45,815 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 05:49:45,816 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 28-race_reach_06-cond_racing1.i that has 2 procedures, 55 locations, 1 initial locations, 6 loop locations, and 8 error locations. [2024-12-02 05:49:45,816 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-12-02 05:49:45,855 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-12-02 05:49:45,884 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 58 places, 67 transitions, 141 flow [2024-12-02 05:49:45,924 INFO L124 PetriNetUnfolderBase]: 17/89 cut-off events. [2024-12-02 05:49:45,926 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-12-02 05:49:45,929 INFO L83 FinitePrefix]: Finished finitePrefix Result has 94 conditions, 89 events. 17/89 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 266 event pairs, 0 based on Foata normal form. 0/61 useless extension candidates. Maximal degree in co-relation 58. Up to 6 conditions per place. [2024-12-02 05:49:45,930 INFO L82 GeneralOperation]: Start removeDead. Operand has 58 places, 67 transitions, 141 flow [2024-12-02 05:49:45,933 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 58 places, 66 transitions, 139 flow [2024-12-02 05:49:45,940 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 05:49:45,950 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;@4b1a5b05, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 05:49:45,950 INFO L334 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2024-12-02 05:49:45,956 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-12-02 05:49:45,956 INFO L124 PetriNetUnfolderBase]: 1/11 cut-off events. [2024-12-02 05:49:45,956 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-12-02 05:49:45,956 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 05:49:45,956 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-12-02 05:49:45,957 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-12-02 05:49:45,961 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:49:45,962 INFO L85 PathProgramCache]: Analyzing trace with hash 379521232, now seen corresponding path program 1 times [2024-12-02 05:49:45,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:49:45,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159603409] [2024-12-02 05:49:45,968 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:49:45,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:49:46,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:49:46,203 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 05:49:46,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:49:46,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159603409] [2024-12-02 05:49:46,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1159603409] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:49:46,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:49:46,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 05:49:46,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517376115] [2024-12-02 05:49:46,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:49:46,212 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 05:49:46,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:49:46,233 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 05:49:46,233 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 05:49:46,249 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 67 [2024-12-02 05:49:46,251 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 66 transitions, 139 flow. Second operand has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 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 05:49:46,252 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 05:49:46,252 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 67 [2024-12-02 05:49:46,252 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 05:49:46,485 INFO L124 PetriNetUnfolderBase]: 159/431 cut-off events. [2024-12-02 05:49:46,485 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-12-02 05:49:46,487 INFO L83 FinitePrefix]: Finished finitePrefix Result has 737 conditions, 431 events. 159/431 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 2124 event pairs, 20 based on Foata normal form. 72/444 useless extension candidates. Maximal degree in co-relation 709. Up to 264 conditions per place. [2024-12-02 05:49:46,490 INFO L140 encePairwiseOnDemand]: 53/67 looper letters, 47 selfloop transitions, 3 changer transitions 0/79 dead transitions. [2024-12-02 05:49:46,491 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 79 transitions, 265 flow [2024-12-02 05:49:46,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 05:49:46,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-12-02 05:49:46,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 189 transitions. [2024-12-02 05:49:46,502 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7052238805970149 [2024-12-02 05:49:46,504 INFO L175 Difference]: Start difference. First operand has 58 places, 66 transitions, 139 flow. Second operand 4 states and 189 transitions. [2024-12-02 05:49:46,504 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 79 transitions, 265 flow [2024-12-02 05:49:46,509 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 79 transitions, 265 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-12-02 05:49:46,512 INFO L231 Difference]: Finished difference. Result has 60 places, 56 transitions, 129 flow [2024-12-02 05:49:46,514 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=67, PETRI_DIFFERENCE_MINUEND_FLOW=119, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=129, PETRI_PLACES=60, PETRI_TRANSITIONS=56} [2024-12-02 05:49:46,517 INFO L279 CegarLoopForPetriNet]: 58 programPoint places, 2 predicate places. [2024-12-02 05:49:46,517 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 56 transitions, 129 flow [2024-12-02 05:49:46,517 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 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 05:49:46,517 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 05:49:46,517 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2024-12-02 05:49:46,518 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 05:49:46,518 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-12-02 05:49:46,518 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:49:46,518 INFO L85 PathProgramCache]: Analyzing trace with hash 1963468402, now seen corresponding path program 1 times [2024-12-02 05:49:46,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:49:46,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396205613] [2024-12-02 05:49:46,519 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:49:46,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:49:46,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 05:49:46,550 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 05:49:46,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 05:49:46,586 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-12-02 05:49:46,586 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-02 05:49:46,587 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 13 remaining) [2024-12-02 05:49:46,589 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 13 remaining) [2024-12-02 05:49:46,589 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 13 remaining) [2024-12-02 05:49:46,590 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 13 remaining) [2024-12-02 05:49:46,590 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 13 remaining) [2024-12-02 05:49:46,590 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 13 remaining) [2024-12-02 05:49:46,590 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 13 remaining) [2024-12-02 05:49:46,590 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 13 remaining) [2024-12-02 05:49:46,590 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 13 remaining) [2024-12-02 05:49:46,590 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 13 remaining) [2024-12-02 05:49:46,590 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 13 remaining) [2024-12-02 05:49:46,590 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 13 remaining) [2024-12-02 05:49:46,591 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 13 remaining) [2024-12-02 05:49:46,591 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 05:49:46,591 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2024-12-02 05:49:46,594 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-12-02 05:49:46,594 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-12-02 05:49:46,616 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-12-02 05:49:46,631 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 86 places, 100 transitions, 216 flow [2024-12-02 05:49:46,647 INFO L124 PetriNetUnfolderBase]: 30/163 cut-off events. [2024-12-02 05:49:46,647 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-12-02 05:49:46,649 INFO L83 FinitePrefix]: Finished finitePrefix Result has 175 conditions, 163 events. 30/163 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 602 event pairs, 0 based on Foata normal form. 0/111 useless extension candidates. Maximal degree in co-relation 98. Up to 9 conditions per place. [2024-12-02 05:49:46,649 INFO L82 GeneralOperation]: Start removeDead. Operand has 86 places, 100 transitions, 216 flow [2024-12-02 05:49:46,650 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 86 places, 100 transitions, 216 flow [2024-12-02 05:49:46,651 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 05:49:46,652 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;@4b1a5b05, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 05:49:46,652 INFO L334 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2024-12-02 05:49:46,654 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-12-02 05:49:46,654 INFO L124 PetriNetUnfolderBase]: 1/11 cut-off events. [2024-12-02 05:49:46,654 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-12-02 05:49:46,655 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 05:49:46,655 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-12-02 05:49:46,655 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-12-02 05:49:46,655 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:49:46,655 INFO L85 PathProgramCache]: Analyzing trace with hash 474981523, now seen corresponding path program 1 times [2024-12-02 05:49:46,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:49:46,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050993776] [2024-12-02 05:49:46,656 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:49:46,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:49:46,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:49:46,725 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 05:49:46,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:49:46,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050993776] [2024-12-02 05:49:46,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1050993776] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:49:46,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:49:46,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 05:49:46,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180118482] [2024-12-02 05:49:46,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:49:46,726 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 05:49:46,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:49:46,727 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 05:49:46,727 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 05:49:46,736 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 100 [2024-12-02 05:49:46,737 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 100 transitions, 216 flow. Second operand has 4 states, 4 states have (on average 44.25) internal successors, (177), 4 states have internal predecessors, (177), 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 05:49:46,737 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 05:49:46,737 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 100 [2024-12-02 05:49:46,737 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 05:49:48,112 INFO L124 PetriNetUnfolderBase]: 4611/9735 cut-off events. [2024-12-02 05:49:48,112 INFO L125 PetriNetUnfolderBase]: For 92/92 co-relation queries the response was YES. [2024-12-02 05:49:48,131 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16808 conditions, 9735 events. 4611/9735 cut-off events. For 92/92 co-relation queries the response was YES. Maximal size of possible extension queue 311. Compared 83234 event pairs, 1952 based on Foata normal form. 1699/10276 useless extension candidates. Maximal degree in co-relation 1345. Up to 6969 conditions per place. [2024-12-02 05:49:48,180 INFO L140 encePairwiseOnDemand]: 80/100 looper letters, 65 selfloop transitions, 3 changer transitions 0/111 dead transitions. [2024-12-02 05:49:48,180 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 111 transitions, 374 flow [2024-12-02 05:49:48,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 05:49:48,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-12-02 05:49:48,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 269 transitions. [2024-12-02 05:49:48,182 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6725 [2024-12-02 05:49:48,183 INFO L175 Difference]: Start difference. First operand has 86 places, 100 transitions, 216 flow. Second operand 4 states and 269 transitions. [2024-12-02 05:49:48,183 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 111 transitions, 374 flow [2024-12-02 05:49:48,184 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 111 transitions, 374 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-12-02 05:49:48,186 INFO L231 Difference]: Finished difference. Result has 91 places, 88 transitions, 212 flow [2024-12-02 05:49:48,187 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=100, PETRI_DIFFERENCE_MINUEND_FLOW=188, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=212, PETRI_PLACES=91, PETRI_TRANSITIONS=88} [2024-12-02 05:49:48,187 INFO L279 CegarLoopForPetriNet]: 86 programPoint places, 5 predicate places. [2024-12-02 05:49:48,188 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 88 transitions, 212 flow [2024-12-02 05:49:48,188 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 44.25) internal successors, (177), 4 states have internal predecessors, (177), 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 05:49:48,188 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 05:49:48,188 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2024-12-02 05:49:48,188 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 05:49:48,188 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-12-02 05:49:48,189 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:49:48,189 INFO L85 PathProgramCache]: Analyzing trace with hash 763522310, now seen corresponding path program 1 times [2024-12-02 05:49:48,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:49:48,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087256828] [2024-12-02 05:49:48,189 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:49:48,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:49:48,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:49:48,302 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 05:49:48,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:49:48,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087256828] [2024-12-02 05:49:48,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1087256828] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:49:48,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:49:48,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 05:49:48,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887017275] [2024-12-02 05:49:48,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:49:48,303 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 05:49:48,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:49:48,304 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 05:49:48,304 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 05:49:48,322 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 100 [2024-12-02 05:49:48,322 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 88 transitions, 212 flow. Second operand has 6 states, 6 states have (on average 44.5) internal successors, (267), 6 states have internal predecessors, (267), 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 05:49:48,323 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 05:49:48,323 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 100 [2024-12-02 05:49:48,323 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 05:49:49,347 INFO L124 PetriNetUnfolderBase]: 3957/8100 cut-off events. [2024-12-02 05:49:49,347 INFO L125 PetriNetUnfolderBase]: For 632/632 co-relation queries the response was YES. [2024-12-02 05:49:49,366 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14691 conditions, 8100 events. 3957/8100 cut-off events. For 632/632 co-relation queries the response was YES. Maximal size of possible extension queue 250. Compared 65783 event pairs, 326 based on Foata normal form. 144/7313 useless extension candidates. Maximal degree in co-relation 3523. Up to 3893 conditions per place. [2024-12-02 05:49:49,398 INFO L140 encePairwiseOnDemand]: 95/100 looper letters, 105 selfloop transitions, 6 changer transitions 0/154 dead transitions. [2024-12-02 05:49:49,399 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 154 transitions, 564 flow [2024-12-02 05:49:49,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 05:49:49,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-02 05:49:49,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 370 transitions. [2024-12-02 05:49:49,401 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6166666666666667 [2024-12-02 05:49:49,401 INFO L175 Difference]: Start difference. First operand has 91 places, 88 transitions, 212 flow. Second operand 6 states and 370 transitions. [2024-12-02 05:49:49,401 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 154 transitions, 564 flow [2024-12-02 05:49:49,404 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 154 transitions, 562 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-12-02 05:49:49,405 INFO L231 Difference]: Finished difference. Result has 94 places, 87 transitions, 218 flow [2024-12-02 05:49:49,406 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=100, PETRI_DIFFERENCE_MINUEND_FLOW=206, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=218, PETRI_PLACES=94, PETRI_TRANSITIONS=87} [2024-12-02 05:49:49,406 INFO L279 CegarLoopForPetriNet]: 86 programPoint places, 8 predicate places. [2024-12-02 05:49:49,406 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 87 transitions, 218 flow [2024-12-02 05:49:49,407 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 44.5) internal successors, (267), 6 states have internal predecessors, (267), 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 05:49:49,407 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 05:49:49,407 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:49:49,407 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 05:49:49,407 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-12-02 05:49:49,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:49:49,408 INFO L85 PathProgramCache]: Analyzing trace with hash 1510597726, now seen corresponding path program 1 times [2024-12-02 05:49:49,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:49:49,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485091236] [2024-12-02 05:49:49,408 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:49:49,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:49:49,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:49:49,478 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 05:49:49,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:49:49,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485091236] [2024-12-02 05:49:49,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1485091236] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:49:49,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:49:49,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 05:49:49,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151196891] [2024-12-02 05:49:49,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:49:49,479 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 05:49:49,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:49:49,480 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 05:49:49,480 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 05:49:49,485 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 100 [2024-12-02 05:49:49,485 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 87 transitions, 218 flow. Second operand has 4 states, 4 states have (on average 45.75) internal successors, (183), 4 states have internal predecessors, (183), 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 05:49:49,485 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 05:49:49,485 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 100 [2024-12-02 05:49:49,485 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 05:49:50,657 INFO L124 PetriNetUnfolderBase]: 6320/12941 cut-off events. [2024-12-02 05:49:50,657 INFO L125 PetriNetUnfolderBase]: For 1175/1336 co-relation queries the response was YES. [2024-12-02 05:49:50,674 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23410 conditions, 12941 events. 6320/12941 cut-off events. For 1175/1336 co-relation queries the response was YES. Maximal size of possible extension queue 429. Compared 112452 event pairs, 1495 based on Foata normal form. 222/11783 useless extension candidates. Maximal degree in co-relation 18886. Up to 6459 conditions per place. [2024-12-02 05:49:50,707 INFO L140 encePairwiseOnDemand]: 91/100 looper letters, 122 selfloop transitions, 12 changer transitions 0/178 dead transitions. [2024-12-02 05:49:50,707 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 178 transitions, 722 flow [2024-12-02 05:49:50,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 05:49:50,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-12-02 05:49:50,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 355 transitions. [2024-12-02 05:49:50,709 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.71 [2024-12-02 05:49:50,709 INFO L175 Difference]: Start difference. First operand has 94 places, 87 transitions, 218 flow. Second operand 5 states and 355 transitions. [2024-12-02 05:49:50,709 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 178 transitions, 722 flow [2024-12-02 05:49:50,713 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 178 transitions, 699 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-12-02 05:49:50,715 INFO L231 Difference]: Finished difference. Result has 98 places, 98 transitions, 300 flow [2024-12-02 05:49:50,715 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=100, PETRI_DIFFERENCE_MINUEND_FLOW=206, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=300, PETRI_PLACES=98, PETRI_TRANSITIONS=98} [2024-12-02 05:49:50,716 INFO L279 CegarLoopForPetriNet]: 86 programPoint places, 12 predicate places. [2024-12-02 05:49:50,716 INFO L471 AbstractCegarLoop]: Abstraction has has 98 places, 98 transitions, 300 flow [2024-12-02 05:49:50,716 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 45.75) internal successors, (183), 4 states have internal predecessors, (183), 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 05:49:50,717 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 05:49:50,717 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2024-12-02 05:49:50,717 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 05:49:50,717 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-12-02 05:49:50,717 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:49:50,717 INFO L85 PathProgramCache]: Analyzing trace with hash -2100611696, now seen corresponding path program 1 times [2024-12-02 05:49:50,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:49:50,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462888063] [2024-12-02 05:49:50,718 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:49:50,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:49:50,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:49:50,772 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 05:49:50,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:49:50,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462888063] [2024-12-02 05:49:50,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462888063] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:49:50,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:49:50,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 05:49:50,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228855908] [2024-12-02 05:49:50,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:49:50,773 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 05:49:50,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:49:50,774 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 05:49:50,774 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 05:49:50,781 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 100 [2024-12-02 05:49:50,782 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 98 transitions, 300 flow. Second operand has 4 states, 4 states have (on average 45.25) internal successors, (181), 4 states have internal predecessors, (181), 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 05:49:50,782 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 05:49:50,782 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 100 [2024-12-02 05:49:50,782 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 05:49:51,586 INFO L124 PetriNetUnfolderBase]: 5333/11397 cut-off events. [2024-12-02 05:49:51,586 INFO L125 PetriNetUnfolderBase]: For 3629/3633 co-relation queries the response was YES. [2024-12-02 05:49:51,604 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22696 conditions, 11397 events. 5333/11397 cut-off events. For 3629/3633 co-relation queries the response was YES. Maximal size of possible extension queue 347. Compared 99491 event pairs, 513 based on Foata normal form. 152/10318 useless extension candidates. Maximal degree in co-relation 19383. Up to 7054 conditions per place. [2024-12-02 05:49:51,639 INFO L140 encePairwiseOnDemand]: 95/100 looper letters, 103 selfloop transitions, 6 changer transitions 0/152 dead transitions. [2024-12-02 05:49:51,639 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 152 transitions, 688 flow [2024-12-02 05:49:51,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 05:49:51,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-12-02 05:49:51,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 259 transitions. [2024-12-02 05:49:51,641 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6475 [2024-12-02 05:49:51,641 INFO L175 Difference]: Start difference. First operand has 98 places, 98 transitions, 300 flow. Second operand 4 states and 259 transitions. [2024-12-02 05:49:51,642 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 152 transitions, 688 flow [2024-12-02 05:49:51,646 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 152 transitions, 684 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-12-02 05:49:51,648 INFO L231 Difference]: Finished difference. Result has 100 places, 98 transitions, 312 flow [2024-12-02 05:49:51,648 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=100, PETRI_DIFFERENCE_MINUEND_FLOW=292, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=312, PETRI_PLACES=100, PETRI_TRANSITIONS=98} [2024-12-02 05:49:51,649 INFO L279 CegarLoopForPetriNet]: 86 programPoint places, 14 predicate places. [2024-12-02 05:49:51,649 INFO L471 AbstractCegarLoop]: Abstraction has has 100 places, 98 transitions, 312 flow [2024-12-02 05:49:51,649 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 45.25) internal successors, (181), 4 states have internal predecessors, (181), 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 05:49:51,649 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 05:49:51,649 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1] [2024-12-02 05:49:51,649 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 05:49:51,649 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-12-02 05:49:51,650 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:49:51,650 INFO L85 PathProgramCache]: Analyzing trace with hash -53194113, now seen corresponding path program 1 times [2024-12-02 05:49:51,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:49:51,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451144883] [2024-12-02 05:49:51,651 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:49:51,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:49:51,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 05:49:51,671 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 05:49:51,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 05:49:51,689 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-12-02 05:49:51,689 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-02 05:49:51,689 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 17 remaining) [2024-12-02 05:49:51,689 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 17 remaining) [2024-12-02 05:49:51,690 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 17 remaining) [2024-12-02 05:49:51,690 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 17 remaining) [2024-12-02 05:49:51,690 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 17 remaining) [2024-12-02 05:49:51,690 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 17 remaining) [2024-12-02 05:49:51,690 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 17 remaining) [2024-12-02 05:49:51,690 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 17 remaining) [2024-12-02 05:49:51,690 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 17 remaining) [2024-12-02 05:49:51,690 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 17 remaining) [2024-12-02 05:49:51,690 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 17 remaining) [2024-12-02 05:49:51,690 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 17 remaining) [2024-12-02 05:49:51,690 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 17 remaining) [2024-12-02 05:49:51,690 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 17 remaining) [2024-12-02 05:49:51,691 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 17 remaining) [2024-12-02 05:49:51,691 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 17 remaining) [2024-12-02 05:49:51,691 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 17 remaining) [2024-12-02 05:49:51,691 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 05:49:51,691 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-12-02 05:49:51,692 WARN L246 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-12-02 05:49:51,692 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-12-02 05:49:51,722 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-12-02 05:49:51,725 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 114 places, 133 transitions, 293 flow [2024-12-02 05:49:51,744 INFO L124 PetriNetUnfolderBase]: 46/256 cut-off events. [2024-12-02 05:49:51,745 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-12-02 05:49:51,746 INFO L83 FinitePrefix]: Finished finitePrefix Result has 281 conditions, 256 events. 46/256 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1036 event pairs, 1 based on Foata normal form. 0/174 useless extension candidates. Maximal degree in co-relation 178. Up to 12 conditions per place. [2024-12-02 05:49:51,746 INFO L82 GeneralOperation]: Start removeDead. Operand has 114 places, 133 transitions, 293 flow [2024-12-02 05:49:51,748 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 114 places, 133 transitions, 293 flow [2024-12-02 05:49:51,749 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 05:49:51,750 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;@4b1a5b05, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 05:49:51,750 INFO L334 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2024-12-02 05:49:51,752 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-12-02 05:49:51,752 INFO L124 PetriNetUnfolderBase]: 1/10 cut-off events. [2024-12-02 05:49:51,752 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-12-02 05:49:51,752 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 05:49:51,752 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-12-02 05:49:51,752 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-12-02 05:49:51,752 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:49:51,752 INFO L85 PathProgramCache]: Analyzing trace with hash 601933879, now seen corresponding path program 1 times [2024-12-02 05:49:51,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:49:51,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847639445] [2024-12-02 05:49:51,753 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:49:51,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:49:51,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:49:51,800 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 05:49:51,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:49:51,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847639445] [2024-12-02 05:49:51,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [847639445] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:49:51,801 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:49:51,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 05:49:51,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693671382] [2024-12-02 05:49:51,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:49:51,801 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 05:49:51,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:49:51,802 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 05:49:51,802 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 05:49:51,811 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 133 [2024-12-02 05:49:51,811 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 133 transitions, 293 flow. Second operand has 4 states, 4 states have (on average 58.25) internal successors, (233), 4 states have internal predecessors, (233), 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 05:49:51,812 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 05:49:51,812 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 133 [2024-12-02 05:49:51,812 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 05:50:01,629 INFO L124 PetriNetUnfolderBase]: 86447/153025 cut-off events. [2024-12-02 05:50:01,629 INFO L125 PetriNetUnfolderBase]: For 1911/1911 co-relation queries the response was YES. [2024-12-02 05:50:01,869 INFO L83 FinitePrefix]: Finished finitePrefix Result has 271744 conditions, 153025 events. 86447/153025 cut-off events. For 1911/1911 co-relation queries the response was YES. Maximal size of possible extension queue 3590. Compared 1600493 event pairs, 52468 based on Foata normal form. 31112/168963 useless extension candidates. Maximal degree in co-relation 17771. Up to 117557 conditions per place. [2024-12-02 05:50:02,521 INFO L140 encePairwiseOnDemand]: 107/133 looper letters, 78 selfloop transitions, 3 changer transitions 0/138 dead transitions. [2024-12-02 05:50:02,522 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 138 transitions, 465 flow [2024-12-02 05:50:02,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 05:50:02,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-12-02 05:50:02,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 344 transitions. [2024-12-02 05:50:02,523 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6466165413533834 [2024-12-02 05:50:02,524 INFO L175 Difference]: Start difference. First operand has 114 places, 133 transitions, 293 flow. Second operand 4 states and 344 transitions. [2024-12-02 05:50:02,524 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 138 transitions, 465 flow [2024-12-02 05:50:02,526 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 138 transitions, 465 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-12-02 05:50:02,527 INFO L231 Difference]: Finished difference. Result has 119 places, 115 transitions, 277 flow [2024-12-02 05:50:02,527 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=253, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=277, PETRI_PLACES=119, PETRI_TRANSITIONS=115} [2024-12-02 05:50:02,528 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 5 predicate places. [2024-12-02 05:50:02,528 INFO L471 AbstractCegarLoop]: Abstraction has has 119 places, 115 transitions, 277 flow [2024-12-02 05:50:02,529 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 58.25) internal successors, (233), 4 states have internal predecessors, (233), 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 05:50:02,529 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 05:50:02,529 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2024-12-02 05:50:02,529 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 05:50:02,529 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-12-02 05:50:02,530 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:50:02,530 INFO L85 PathProgramCache]: Analyzing trace with hash 295375750, now seen corresponding path program 1 times [2024-12-02 05:50:02,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:50:02,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228484718] [2024-12-02 05:50:02,530 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:50:02,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:50:02,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:50:02,598 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 05:50:02,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:50:02,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228484718] [2024-12-02 05:50:02,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228484718] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:50:02,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:50:02,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 05:50:02,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484925937] [2024-12-02 05:50:02,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:50:02,599 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 05:50:02,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:50:02,599 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 05:50:02,599 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 05:50:02,608 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 133 [2024-12-02 05:50:02,609 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 115 transitions, 277 flow. Second operand has 6 states, 6 states have (on average 58.5) internal successors, (351), 6 states have internal predecessors, (351), 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 05:50:02,610 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 05:50:02,610 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 133 [2024-12-02 05:50:02,610 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 05:50:10,439 INFO L124 PetriNetUnfolderBase]: 71934/125288 cut-off events. [2024-12-02 05:50:10,439 INFO L125 PetriNetUnfolderBase]: For 8797/8797 co-relation queries the response was YES. [2024-12-02 05:50:10,633 INFO L83 FinitePrefix]: Finished finitePrefix Result has 229906 conditions, 125288 events. 71934/125288 cut-off events. For 8797/8797 co-relation queries the response was YES. Maximal size of possible extension queue 2856. Compared 1261222 event pairs, 7896 based on Foata normal form. 1872/114841 useless extension candidates. Maximal degree in co-relation 19478. Up to 63134 conditions per place. [2024-12-02 05:50:10,931 INFO L140 encePairwiseOnDemand]: 128/133 looper letters, 140 selfloop transitions, 6 changer transitions 0/203 dead transitions. [2024-12-02 05:50:10,931 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 203 transitions, 743 flow [2024-12-02 05:50:10,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 05:50:10,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-02 05:50:10,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 489 transitions. [2024-12-02 05:50:10,933 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6127819548872181 [2024-12-02 05:50:10,933 INFO L175 Difference]: Start difference. First operand has 119 places, 115 transitions, 277 flow. Second operand 6 states and 489 transitions. [2024-12-02 05:50:10,933 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 203 transitions, 743 flow [2024-12-02 05:50:10,939 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 203 transitions, 741 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-12-02 05:50:10,940 INFO L231 Difference]: Finished difference. Result has 122 places, 114 transitions, 283 flow [2024-12-02 05:50:10,941 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=271, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=283, PETRI_PLACES=122, PETRI_TRANSITIONS=114} [2024-12-02 05:50:10,941 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 8 predicate places. [2024-12-02 05:50:10,941 INFO L471 AbstractCegarLoop]: Abstraction has has 122 places, 114 transitions, 283 flow [2024-12-02 05:50:10,942 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 58.5) internal successors, (351), 6 states have internal predecessors, (351), 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 05:50:10,942 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 05:50:10,942 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:50:10,942 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 05:50:10,942 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-12-02 05:50:10,942 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:50:10,943 INFO L85 PathProgramCache]: Analyzing trace with hash 2067249021, now seen corresponding path program 1 times [2024-12-02 05:50:10,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:50:10,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056355348] [2024-12-02 05:50:10,943 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:50:10,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:50:10,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:50:10,996 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 05:50:10,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:50:10,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056355348] [2024-12-02 05:50:10,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056355348] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:50:10,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:50:10,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 05:50:10,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841042356] [2024-12-02 05:50:10,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:50:10,997 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 05:50:10,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:50:10,997 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 05:50:10,997 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 05:50:11,003 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 133 [2024-12-02 05:50:11,004 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 114 transitions, 283 flow. Second operand has 4 states, 4 states have (on average 59.75) internal successors, (239), 4 states have internal predecessors, (239), 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 05:50:11,004 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 05:50:11,004 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 133 [2024-12-02 05:50:11,004 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 05:50:24,158 INFO L124 PetriNetUnfolderBase]: 123460/213529 cut-off events. [2024-12-02 05:50:24,158 INFO L125 PetriNetUnfolderBase]: For 18650/20898 co-relation queries the response was YES. [2024-12-02 05:50:24,502 INFO L83 FinitePrefix]: Finished finitePrefix Result has 392961 conditions, 213529 events. 123460/213529 cut-off events. For 18650/20898 co-relation queries the response was YES. Maximal size of possible extension queue 5013. Compared 2246230 event pairs, 39792 based on Foata normal form. 3005/196353 useless extension candidates. Maximal degree in co-relation 265555. Up to 115524 conditions per place. [2024-12-02 05:50:25,312 INFO L140 encePairwiseOnDemand]: 122/133 looper letters, 174 selfloop transitions, 16 changer transitions 0/248 dead transitions. [2024-12-02 05:50:25,312 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 248 transitions, 1015 flow [2024-12-02 05:50:25,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 05:50:25,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-12-02 05:50:25,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 481 transitions. [2024-12-02 05:50:25,314 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7233082706766917 [2024-12-02 05:50:25,314 INFO L175 Difference]: Start difference. First operand has 122 places, 114 transitions, 283 flow. Second operand 5 states and 481 transitions. [2024-12-02 05:50:25,314 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 248 transitions, 1015 flow [2024-12-02 05:50:25,328 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 248 transitions, 992 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-12-02 05:50:25,330 INFO L231 Difference]: Finished difference. Result has 126 places, 129 transitions, 399 flow [2024-12-02 05:50:25,331 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=271, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=399, PETRI_PLACES=126, PETRI_TRANSITIONS=129} [2024-12-02 05:50:25,331 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 12 predicate places. [2024-12-02 05:50:25,331 INFO L471 AbstractCegarLoop]: Abstraction has has 126 places, 129 transitions, 399 flow [2024-12-02 05:50:25,331 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 59.75) internal successors, (239), 4 states have internal predecessors, (239), 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 05:50:25,331 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 05:50:25,331 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2024-12-02 05:50:25,332 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 05:50:25,332 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-12-02 05:50:25,332 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:50:25,332 INFO L85 PathProgramCache]: Analyzing trace with hash 566714261, now seen corresponding path program 1 times [2024-12-02 05:50:25,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:50:25,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446171419] [2024-12-02 05:50:25,332 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:50:25,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:50:25,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:50:25,375 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 05:50:25,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:50:25,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446171419] [2024-12-02 05:50:25,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446171419] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:50:25,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:50:25,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 05:50:25,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676864987] [2024-12-02 05:50:25,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:50:25,376 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 05:50:25,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:50:25,376 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 05:50:25,377 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 05:50:25,382 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 133 [2024-12-02 05:50:25,382 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 129 transitions, 399 flow. Second operand has 4 states, 4 states have (on average 59.25) internal successors, (237), 4 states have internal predecessors, (237), 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 05:50:25,382 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 05:50:25,382 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 133 [2024-12-02 05:50:25,382 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 05:50:37,928 INFO L124 PetriNetUnfolderBase]: 106998/188809 cut-off events. [2024-12-02 05:50:37,928 INFO L125 PetriNetUnfolderBase]: For 72102/72134 co-relation queries the response was YES. [2024-12-02 05:50:38,433 INFO L83 FinitePrefix]: Finished finitePrefix Result has 392104 conditions, 188809 events. 106998/188809 cut-off events. For 72102/72134 co-relation queries the response was YES. Maximal size of possible extension queue 4382. Compared 2015858 event pairs, 12393 based on Foata normal form. 2208/173662 useless extension candidates. Maximal degree in co-relation 320658. Up to 125525 conditions per place. [2024-12-02 05:50:39,026 INFO L140 encePairwiseOnDemand]: 128/133 looper letters, 146 selfloop transitions, 6 changer transitions 0/209 dead transitions. [2024-12-02 05:50:39,026 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 209 transitions, 961 flow [2024-12-02 05:50:39,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 05:50:39,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-12-02 05:50:39,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 350 transitions. [2024-12-02 05:50:39,027 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6578947368421053 [2024-12-02 05:50:39,027 INFO L175 Difference]: Start difference. First operand has 126 places, 129 transitions, 399 flow. Second operand 4 states and 350 transitions. [2024-12-02 05:50:39,027 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 209 transitions, 961 flow [2024-12-02 05:50:39,451 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 209 transitions, 957 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-12-02 05:50:39,453 INFO L231 Difference]: Finished difference. Result has 128 places, 129 transitions, 411 flow [2024-12-02 05:50:39,453 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=391, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=411, PETRI_PLACES=128, PETRI_TRANSITIONS=129} [2024-12-02 05:50:39,454 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 14 predicate places. [2024-12-02 05:50:39,454 INFO L471 AbstractCegarLoop]: Abstraction has has 128 places, 129 transitions, 411 flow [2024-12-02 05:50:39,454 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 59.25) internal successors, (237), 4 states have internal predecessors, (237), 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 05:50:39,454 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 05:50:39,454 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:50:39,454 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 05:50:39,455 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-12-02 05:50:39,455 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:50:39,455 INFO L85 PathProgramCache]: Analyzing trace with hash 1458406544, now seen corresponding path program 1 times [2024-12-02 05:50:39,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:50:39,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429052505] [2024-12-02 05:50:39,455 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:50:39,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:50:39,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:50:39,507 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 05:50:39,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:50:39,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429052505] [2024-12-02 05:50:39,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1429052505] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:50:39,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:50:39,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 05:50:39,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821469513] [2024-12-02 05:50:39,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:50:39,508 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 05:50:39,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:50:39,508 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 05:50:39,509 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 05:50:39,513 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 133 [2024-12-02 05:50:39,513 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 129 transitions, 411 flow. Second operand has 4 states, 4 states have (on average 60.25) internal successors, (241), 4 states have internal predecessors, (241), 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 05:50:39,514 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 05:50:39,514 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 133 [2024-12-02 05:50:39,514 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 05:50:55,523 INFO L124 PetriNetUnfolderBase]: 138147/240253 cut-off events. [2024-12-02 05:50:55,523 INFO L125 PetriNetUnfolderBase]: For 104524/105176 co-relation queries the response was YES. [2024-12-02 05:50:55,964 INFO L83 FinitePrefix]: Finished finitePrefix Result has 504946 conditions, 240253 events. 138147/240253 cut-off events. For 104524/105176 co-relation queries the response was YES. Maximal size of possible extension queue 5789. Compared 2585608 event pairs, 45394 based on Foata normal form. 6784/227070 useless extension candidates. Maximal degree in co-relation 413929. Up to 130725 conditions per place. [2024-12-02 05:50:56,774 INFO L140 encePairwiseOnDemand]: 122/133 looper letters, 175 selfloop transitions, 27 changer transitions 0/259 dead transitions. [2024-12-02 05:50:56,774 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 259 transitions, 1228 flow [2024-12-02 05:50:56,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 05:50:56,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-12-02 05:50:56,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 480 transitions. [2024-12-02 05:50:56,775 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7218045112781954 [2024-12-02 05:50:56,775 INFO L175 Difference]: Start difference. First operand has 128 places, 129 transitions, 411 flow. Second operand 5 states and 480 transitions. [2024-12-02 05:50:56,776 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 259 transitions, 1228 flow [2024-12-02 05:50:56,876 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 259 transitions, 1213 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-12-02 05:50:56,879 INFO L231 Difference]: Finished difference. Result has 133 places, 142 transitions, 580 flow [2024-12-02 05:50:56,879 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=403, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=580, PETRI_PLACES=133, PETRI_TRANSITIONS=142} [2024-12-02 05:50:56,879 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 19 predicate places. [2024-12-02 05:50:56,879 INFO L471 AbstractCegarLoop]: Abstraction has has 133 places, 142 transitions, 580 flow [2024-12-02 05:50:56,880 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 60.25) internal successors, (241), 4 states have internal predecessors, (241), 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 05:50:56,880 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 05:50:56,880 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 05:50:56,880 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 05:50:56,880 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-12-02 05:50:56,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:50:56,880 INFO L85 PathProgramCache]: Analyzing trace with hash 906094691, now seen corresponding path program 1 times [2024-12-02 05:50:56,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:50:56,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7532313] [2024-12-02 05:50:56,880 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:50:56,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:50:56,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:50:56,952 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 05:50:56,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:50:56,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7532313] [2024-12-02 05:50:56,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7532313] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:50:56,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:50:56,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 05:50:56,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274202961] [2024-12-02 05:50:56,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:50:56,953 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 05:50:56,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:50:56,953 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 05:50:56,954 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 05:50:56,970 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 133 [2024-12-02 05:50:56,970 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 142 transitions, 580 flow. Second operand has 6 states, 6 states have (on average 57.833333333333336) internal successors, (347), 6 states have internal predecessors, (347), 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 05:50:56,970 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 05:50:56,970 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 133 [2024-12-02 05:50:56,970 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 05:51:21,298 INFO L124 PetriNetUnfolderBase]: 187049/314361 cut-off events. [2024-12-02 05:51:21,298 INFO L125 PetriNetUnfolderBase]: For 225343/230198 co-relation queries the response was YES. [2024-12-02 05:51:22,219 INFO L83 FinitePrefix]: Finished finitePrefix Result has 710016 conditions, 314361 events. 187049/314361 cut-off events. For 225343/230198 co-relation queries the response was YES. Maximal size of possible extension queue 7701. Compared 3354197 event pairs, 39495 based on Foata normal form. 6786/298227 useless extension candidates. Maximal degree in co-relation 527000. Up to 131558 conditions per place. [2024-12-02 05:51:23,560 INFO L140 encePairwiseOnDemand]: 121/133 looper letters, 318 selfloop transitions, 52 changer transitions 0/425 dead transitions. [2024-12-02 05:51:23,560 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 425 transitions, 2256 flow [2024-12-02 05:51:23,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 05:51:23,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-12-02 05:51:23,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 853 transitions. [2024-12-02 05:51:23,563 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7126148705096074 [2024-12-02 05:51:23,563 INFO L175 Difference]: Start difference. First operand has 133 places, 142 transitions, 580 flow. Second operand 9 states and 853 transitions. [2024-12-02 05:51:23,564 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 425 transitions, 2256 flow [2024-12-02 05:51:25,847 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 425 transitions, 2256 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-12-02 05:51:25,851 INFO L231 Difference]: Finished difference. Result has 147 places, 167 transitions, 977 flow [2024-12-02 05:51:25,851 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=580, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=977, PETRI_PLACES=147, PETRI_TRANSITIONS=167} [2024-12-02 05:51:25,851 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 33 predicate places. [2024-12-02 05:51:25,852 INFO L471 AbstractCegarLoop]: Abstraction has has 147 places, 167 transitions, 977 flow [2024-12-02 05:51:25,852 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 57.833333333333336) internal successors, (347), 6 states have internal predecessors, (347), 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 05:51:25,852 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 05:51:25,852 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 3, 1, 1, 1, 1, 1] [2024-12-02 05:51:25,852 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 05:51:25,852 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-12-02 05:51:25,852 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:51:25,853 INFO L85 PathProgramCache]: Analyzing trace with hash 813729009, now seen corresponding path program 1 times [2024-12-02 05:51:25,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:51:25,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294769015] [2024-12-02 05:51:25,853 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:51:25,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:51:25,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 05:51:25,876 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 05:51:25,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 05:51:25,895 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-12-02 05:51:25,895 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-02 05:51:25,895 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 21 remaining) [2024-12-02 05:51:25,895 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 21 remaining) [2024-12-02 05:51:25,895 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 21 remaining) [2024-12-02 05:51:25,895 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 21 remaining) [2024-12-02 05:51:25,895 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 21 remaining) [2024-12-02 05:51:25,896 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 21 remaining) [2024-12-02 05:51:25,896 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 21 remaining) [2024-12-02 05:51:25,896 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 21 remaining) [2024-12-02 05:51:25,896 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 21 remaining) [2024-12-02 05:51:25,896 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 21 remaining) [2024-12-02 05:51:25,896 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 21 remaining) [2024-12-02 05:51:25,897 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 21 remaining) [2024-12-02 05:51:25,897 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 21 remaining) [2024-12-02 05:51:25,897 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 21 remaining) [2024-12-02 05:51:25,897 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 21 remaining) [2024-12-02 05:51:25,897 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 21 remaining) [2024-12-02 05:51:25,897 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 21 remaining) [2024-12-02 05:51:25,897 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 21 remaining) [2024-12-02 05:51:25,897 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 21 remaining) [2024-12-02 05:51:25,897 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 21 remaining) [2024-12-02 05:51:25,897 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 21 remaining) [2024-12-02 05:51:25,897 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 05:51:25,897 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:51:25,898 WARN L246 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2024-12-02 05:51:25,898 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2024-12-02 05:51:25,931 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-12-02 05:51:25,934 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 142 places, 166 transitions, 372 flow [2024-12-02 05:51:25,978 INFO L124 PetriNetUnfolderBase]: 70/389 cut-off events. [2024-12-02 05:51:25,979 INFO L125 PetriNetUnfolderBase]: For 48/48 co-relation queries the response was YES. [2024-12-02 05:51:25,982 INFO L83 FinitePrefix]: Finished finitePrefix Result has 440 conditions, 389 events. 70/389 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1721 event pairs, 6 based on Foata normal form. 0/265 useless extension candidates. Maximal degree in co-relation 284. Up to 32 conditions per place. [2024-12-02 05:51:25,982 INFO L82 GeneralOperation]: Start removeDead. Operand has 142 places, 166 transitions, 372 flow [2024-12-02 05:51:25,984 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 142 places, 166 transitions, 372 flow [2024-12-02 05:51:25,985 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 05:51:25,986 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;@4b1a5b05, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 05:51:25,986 INFO L334 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2024-12-02 05:51:25,987 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-12-02 05:51:25,987 INFO L124 PetriNetUnfolderBase]: 1/10 cut-off events. [2024-12-02 05:51:25,987 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-12-02 05:51:25,987 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 05:51:25,987 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-12-02 05:51:25,987 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-12-02 05:51:25,987 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:51:25,988 INFO L85 PathProgramCache]: Analyzing trace with hash 760378300, now seen corresponding path program 1 times [2024-12-02 05:51:25,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:51:25,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907490743] [2024-12-02 05:51:25,988 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:51:25,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:51:25,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:51:26,031 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 05:51:26,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:51:26,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907490743] [2024-12-02 05:51:26,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1907490743] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:51:26,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:51:26,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 05:51:26,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673313866] [2024-12-02 05:51:26,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:51:26,032 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 05:51:26,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:51:26,032 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 05:51:26,033 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 05:51:26,039 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 166 [2024-12-02 05:51:26,040 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 166 transitions, 372 flow. Second operand has 4 states, 4 states have (on average 72.25) internal successors, (289), 4 states have internal predecessors, (289), 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 05:51:26,040 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 05:51:26,040 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 166 [2024-12-02 05:51:26,040 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand