/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf --traceabstraction.order.of.the.error.locations.to.be.checked PROGRAM_FIRST -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true -i ../../../trunk/examples/svcomp/weaver/chl-collitem-trans.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-27 12:46:02,645 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-27 12:46:02,690 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-08-27 12:46:02,694 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-27 12:46:02,694 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-27 12:46:02,714 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-27 12:46:02,714 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-27 12:46:02,715 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-27 12:46:02,715 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-27 12:46:02,715 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-27 12:46:02,716 INFO L153 SettingsManager]: * Use SBE=true [2023-08-27 12:46:02,716 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-27 12:46:02,716 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-27 12:46:02,717 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-27 12:46:02,717 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-27 12:46:02,717 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-27 12:46:02,717 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-27 12:46:02,718 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-27 12:46:02,718 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-27 12:46:02,718 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-27 12:46:02,718 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-27 12:46:02,725 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-27 12:46:02,725 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-27 12:46:02,725 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-27 12:46:02,725 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-27 12:46:02,725 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-27 12:46:02,726 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-27 12:46:02,726 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 12:46:02,726 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-27 12:46:02,726 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-27 12:46:02,727 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-27 12:46:02,727 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-27 12:46:02,727 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-27 12:46:02,727 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-27 12:46:02,727 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-27 12:46:02,727 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> PROGRAM_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-08-27 12:46:03,034 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-27 12:46:03,060 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-27 12:46:03,063 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-27 12:46:03,064 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-27 12:46:03,065 INFO L274 PluginConnector]: CDTParser initialized [2023-08-27 12:46:03,066 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-collitem-trans.wvr.c [2023-08-27 12:46:04,351 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-27 12:46:04,545 INFO L384 CDTParser]: Found 1 translation units. [2023-08-27 12:46:04,545 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-collitem-trans.wvr.c [2023-08-27 12:46:04,551 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/345b7d314/9e1f129b40f84f4788b1eade53db3e16/FLAGc5ae9e646 [2023-08-27 12:46:04,562 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/345b7d314/9e1f129b40f84f4788b1eade53db3e16 [2023-08-27 12:46:04,565 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-27 12:46:04,566 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-27 12:46:04,567 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-27 12:46:04,567 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-27 12:46:04,570 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-27 12:46:04,570 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 12:46:04" (1/1) ... [2023-08-27 12:46:04,571 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23a7a540 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:46:04, skipping insertion in model container [2023-08-27 12:46:04,571 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 12:46:04" (1/1) ... [2023-08-27 12:46:04,591 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-27 12:46:04,795 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 12:46:04,808 INFO L201 MainTranslator]: Completed pre-run [2023-08-27 12:46:04,853 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 12:46:04,860 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-27 12:46:04,860 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-27 12:46:04,874 INFO L206 MainTranslator]: Completed translation [2023-08-27 12:46:04,876 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:46:04 WrapperNode [2023-08-27 12:46:04,876 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-27 12:46:04,877 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-27 12:46:04,877 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-27 12:46:04,878 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-27 12:46:04,884 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:46:04" (1/1) ... [2023-08-27 12:46:04,901 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:46:04" (1/1) ... [2023-08-27 12:46:04,948 INFO L138 Inliner]: procedures = 23, calls = 46, calls flagged for inlining = 18, calls inlined = 40, statements flattened = 531 [2023-08-27 12:46:04,949 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-27 12:46:04,950 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-27 12:46:04,950 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-27 12:46:04,950 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-27 12:46:04,959 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:46:04" (1/1) ... [2023-08-27 12:46:04,959 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:46:04" (1/1) ... [2023-08-27 12:46:04,972 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:46:04" (1/1) ... [2023-08-27 12:46:04,972 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:46:04" (1/1) ... [2023-08-27 12:46:04,990 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:46:04" (1/1) ... [2023-08-27 12:46:04,993 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:46:04" (1/1) ... [2023-08-27 12:46:04,995 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:46:04" (1/1) ... [2023-08-27 12:46:04,998 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:46:04" (1/1) ... [2023-08-27 12:46:05,001 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-27 12:46:05,002 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-27 12:46:05,002 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-27 12:46:05,002 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-27 12:46:05,003 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:46:04" (1/1) ... [2023-08-27 12:46:05,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 12:46:05,032 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 12:46:05,049 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-27 12:46:05,056 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-27 12:46:05,074 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-27 12:46:05,075 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-27 12:46:05,075 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-27 12:46:05,075 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-27 12:46:05,075 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-27 12:46:05,075 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-08-27 12:46:05,075 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-08-27 12:46:05,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-27 12:46:05,076 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-27 12:46:05,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-27 12:46:05,076 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-27 12:46:05,076 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-27 12:46:05,076 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-27 12:46:05,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-27 12:46:05,076 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-27 12:46:05,076 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-27 12:46:05,078 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-27 12:46:05,179 INFO L236 CfgBuilder]: Building ICFG [2023-08-27 12:46:05,181 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-27 12:46:05,893 INFO L277 CfgBuilder]: Performing block encoding [2023-08-27 12:46:10,221 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-27 12:46:10,221 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-27 12:46:10,223 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 12:46:10 BoogieIcfgContainer [2023-08-27 12:46:10,223 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-27 12:46:10,225 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-27 12:46:10,225 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-27 12:46:10,228 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-27 12:46:10,228 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 12:46:04" (1/3) ... [2023-08-27 12:46:10,229 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68b51c27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 12:46:10, skipping insertion in model container [2023-08-27 12:46:10,229 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:46:04" (2/3) ... [2023-08-27 12:46:10,229 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68b51c27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 12:46:10, skipping insertion in model container [2023-08-27 12:46:10,229 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 12:46:10" (3/3) ... [2023-08-27 12:46:10,231 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-collitem-trans.wvr.c [2023-08-27 12:46:10,247 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-27 12:46:10,248 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 73 error locations. [2023-08-27 12:46:10,248 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-27 12:46:11,867 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-08-27 12:46:11,904 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 214 places, 205 transitions, 434 flow [2023-08-27 12:46:12,276 INFO L124 PetriNetUnfolderBase]: 1/202 cut-off events. [2023-08-27 12:46:12,277 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-27 12:46:12,281 INFO L83 FinitePrefix]: Finished finitePrefix Result has 215 conditions, 202 events. 1/202 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 501 event pairs, 0 based on Foata normal form. 0/128 useless extension candidates. Maximal degree in co-relation 82. Up to 2 conditions per place. [2023-08-27 12:46:12,281 INFO L82 GeneralOperation]: Start removeDead. Operand has 214 places, 205 transitions, 434 flow [2023-08-27 12:46:12,291 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 200 places, 191 transitions, 400 flow [2023-08-27 12:46:12,295 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 12:46:12,306 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 200 places, 191 transitions, 400 flow [2023-08-27 12:46:12,309 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 200 places, 191 transitions, 400 flow [2023-08-27 12:46:12,309 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 200 places, 191 transitions, 400 flow [2023-08-27 12:46:12,650 INFO L124 PetriNetUnfolderBase]: 1/191 cut-off events. [2023-08-27 12:46:12,651 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-27 12:46:12,651 INFO L83 FinitePrefix]: Finished finitePrefix Result has 204 conditions, 191 events. 1/191 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 501 event pairs, 0 based on Foata normal form. 0/118 useless extension candidates. Maximal degree in co-relation 71. Up to 2 conditions per place. [2023-08-27 12:46:12,655 INFO L119 LiptonReduction]: Number of co-enabled transitions 6318 [2023-08-27 12:46:18,803 WARN L234 SmtUtils]: Spent 6.07s on a formula simplification. DAG size of input: 1436 DAG size of output: 441 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-27 12:46:28,076 WARN L234 SmtUtils]: Spent 8.41s on a formula simplification. DAG size of input: 1646 DAG size of output: 577 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-27 12:46:50,333 WARN L234 SmtUtils]: Spent 5.34s on a formula simplification. DAG size of input: 1235 DAG size of output: 528 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-27 12:47:05,232 INFO L134 LiptonReduction]: Checked pairs total: 4326 [2023-08-27 12:47:05,233 INFO L136 LiptonReduction]: Total number of compositions: 106 [2023-08-27 12:47:05,243 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-27 12:47:05,247 INFO L357 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, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@491a2beb, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 12:47:05,248 INFO L358 AbstractCegarLoop]: Starting to check reachability of 148 error locations. [2023-08-27 12:47:05,249 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 12:47:05,249 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2023-08-27 12:47:05,249 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 12:47:05,249 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 12:47:05,250 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-27 12:47:05,250 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 145 more)] === [2023-08-27 12:47:05,253 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 12:47:05,253 INFO L85 PathProgramCache]: Analyzing trace with hash 2359643, now seen corresponding path program 1 times [2023-08-27 12:47:05,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 12:47:05,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548760632] [2023-08-27 12:47:05,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 12:47:05,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 12:47:05,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 12:47:05,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 12:47:05,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 12:47:05,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548760632] [2023-08-27 12:47:05,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [548760632] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 12:47:05,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 12:47:05,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 12:47:05,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118193125] [2023-08-27 12:47:05,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 12:47:05,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-27 12:47:05,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 12:47:05,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-27 12:47:05,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-27 12:47:05,561 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 311 [2023-08-27 12:47:05,563 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 88 transitions, 194 flow. Second operand has 2 states, 2 states have (on average 123.5) internal successors, (247), 2 states have internal predecessors, (247), 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) [2023-08-27 12:47:05,564 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 12:47:05,564 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 311 [2023-08-27 12:47:05,564 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 12:48:13,056 INFO L124 PetriNetUnfolderBase]: 29733/42768 cut-off events. [2023-08-27 12:48:13,056 INFO L125 PetriNetUnfolderBase]: For 972/972 co-relation queries the response was YES. [2023-08-27 12:48:13,097 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86570 conditions, 42768 events. 29733/42768 cut-off events. For 972/972 co-relation queries the response was YES. Maximal size of possible extension queue 5832. Compared 314279 event pairs, 29733 based on Foata normal form. 0/9296 useless extension candidates. Maximal degree in co-relation 82328. Up to 42769 conditions per place. [2023-08-27 12:48:13,272 INFO L140 encePairwiseOnDemand]: 287/311 looper letters, 64 selfloop transitions, 0 changer transitions 0/64 dead transitions. [2023-08-27 12:48:13,273 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 64 transitions, 274 flow [2023-08-27 12:48:13,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-27 12:48:13,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-27 12:48:13,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 332 transitions. [2023-08-27 12:48:13,290 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5337620578778135 [2023-08-27 12:48:13,290 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 332 transitions. [2023-08-27 12:48:13,291 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 332 transitions. [2023-08-27 12:48:13,293 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 12:48:13,295 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 332 transitions. [2023-08-27 12:48:13,299 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 166.0) internal successors, (332), 2 states have internal predecessors, (332), 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) [2023-08-27 12:48:13,304 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 311.0) internal successors, (933), 3 states have internal predecessors, (933), 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) [2023-08-27 12:48:13,305 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 311.0) internal successors, (933), 3 states have internal predecessors, (933), 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) [2023-08-27 12:48:13,306 INFO L175 Difference]: Start difference. First operand has 98 places, 88 transitions, 194 flow. Second operand 2 states and 332 transitions. [2023-08-27 12:48:13,307 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 64 transitions, 274 flow [2023-08-27 12:48:13,347 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 64 transitions, 262 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-08-27 12:48:13,350 INFO L231 Difference]: Finished difference. Result has 69 places, 64 transitions, 134 flow [2023-08-27 12:48:13,351 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=311, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=134, PETRI_PLACES=69, PETRI_TRANSITIONS=64} [2023-08-27 12:48:13,356 INFO L281 CegarLoopForPetriNet]: 98 programPoint places, -29 predicate places. [2023-08-27 12:48:13,356 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 64 transitions, 134 flow [2023-08-27 12:48:13,356 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 123.5) internal successors, (247), 2 states have internal predecessors, (247), 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) [2023-08-27 12:48:13,357 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 12:48:13,357 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-27 12:48:13,357 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-27 12:48:13,357 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err14ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 145 more)] === [2023-08-27 12:48:13,358 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 12:48:13,359 INFO L85 PathProgramCache]: Analyzing trace with hash 2359657, now seen corresponding path program 1 times [2023-08-27 12:48:13,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 12:48:13,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192806314] [2023-08-27 12:48:13,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 12:48:13,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 12:48:13,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 12:48:13,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 12:48:13,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 12:48:13,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192806314] [2023-08-27 12:48:13,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192806314] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 12:48:13,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 12:48:13,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 12:48:13,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621602800] [2023-08-27 12:48:13,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 12:48:13,722 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 12:48:13,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 12:48:13,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 12:48:13,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 12:48:13,724 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 311 [2023-08-27 12:48:13,725 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 64 transitions, 134 flow. Second operand has 3 states, 3 states have (on average 121.0) internal successors, (363), 3 states have internal predecessors, (363), 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) [2023-08-27 12:48:13,725 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 12:48:13,725 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 311 [2023-08-27 12:48:13,726 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 12:49:10,727 INFO L124 PetriNetUnfolderBase]: 26517/38184 cut-off events. [2023-08-27 12:49:10,727 INFO L125 PetriNetUnfolderBase]: For 289/289 co-relation queries the response was YES. [2023-08-27 12:49:10,746 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76678 conditions, 38184 events. 26517/38184 cut-off events. For 289/289 co-relation queries the response was YES. Maximal size of possible extension queue 5203. Compared 277312 event pairs, 26517 based on Foata normal form. 0/8410 useless extension candidates. Maximal degree in co-relation 76675. Up to 38184 conditions per place. [2023-08-27 12:49:10,867 INFO L140 encePairwiseOnDemand]: 308/311 looper letters, 61 selfloop transitions, 1 changer transitions 0/62 dead transitions. [2023-08-27 12:49:10,868 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 62 transitions, 254 flow [2023-08-27 12:49:10,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 12:49:10,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 12:49:10,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 424 transitions. [2023-08-27 12:49:10,871 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45444801714898175 [2023-08-27 12:49:10,871 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 424 transitions. [2023-08-27 12:49:10,871 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 424 transitions. [2023-08-27 12:49:10,871 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 12:49:10,871 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 424 transitions. [2023-08-27 12:49:10,872 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 141.33333333333334) internal successors, (424), 3 states have internal predecessors, (424), 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) [2023-08-27 12:49:10,876 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 311.0) internal successors, (1244), 4 states have internal predecessors, (1244), 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) [2023-08-27 12:49:10,876 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 311.0) internal successors, (1244), 4 states have internal predecessors, (1244), 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) [2023-08-27 12:49:10,876 INFO L175 Difference]: Start difference. First operand has 69 places, 64 transitions, 134 flow. Second operand 3 states and 424 transitions. [2023-08-27 12:49:10,876 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 62 transitions, 254 flow [2023-08-27 12:49:10,877 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 62 transitions, 254 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-27 12:49:10,878 INFO L231 Difference]: Finished difference. Result has 69 places, 62 transitions, 132 flow [2023-08-27 12:49:10,878 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=311, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=132, PETRI_PLACES=69, PETRI_TRANSITIONS=62} [2023-08-27 12:49:10,880 INFO L281 CegarLoopForPetriNet]: 98 programPoint places, -29 predicate places. [2023-08-27 12:49:10,882 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 62 transitions, 132 flow [2023-08-27 12:49:10,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 121.0) internal successors, (363), 3 states have internal predecessors, (363), 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) [2023-08-27 12:49:10,883 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 12:49:10,887 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-27 12:49:10,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-27 12:49:10,888 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err16ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 145 more)] === [2023-08-27 12:49:10,890 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 12:49:10,890 INFO L85 PathProgramCache]: Analyzing trace with hash 2359659, now seen corresponding path program 1 times [2023-08-27 12:49:10,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 12:49:10,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674181107] [2023-08-27 12:49:10,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 12:49:10,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 12:49:10,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 12:49:11,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 12:49:11,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 12:49:11,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674181107] [2023-08-27 12:49:11,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1674181107] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 12:49:11,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 12:49:11,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 12:49:11,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239715374] [2023-08-27 12:49:11,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 12:49:11,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 12:49:11,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 12:49:11,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 12:49:11,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 12:49:11,281 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 311 [2023-08-27 12:49:11,281 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 62 transitions, 132 flow. Second operand has 3 states, 3 states have (on average 121.0) internal successors, (363), 3 states have internal predecessors, (363), 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) [2023-08-27 12:49:11,282 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 12:49:11,282 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 311 [2023-08-27 12:49:11,282 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 12:49:59,236 INFO L124 PetriNetUnfolderBase]: 23627/34066 cut-off events. [2023-08-27 12:49:59,236 INFO L125 PetriNetUnfolderBase]: For 272/272 co-relation queries the response was YES. [2023-08-27 12:49:59,248 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68426 conditions, 34066 events. 23627/34066 cut-off events. For 272/272 co-relation queries the response was YES. Maximal size of possible extension queue 4625. Compared 243911 event pairs, 23627 based on Foata normal form. 0/7620 useless extension candidates. Maximal degree in co-relation 68422. Up to 34066 conditions per place. [2023-08-27 12:49:59,379 INFO L140 encePairwiseOnDemand]: 308/311 looper letters, 59 selfloop transitions, 1 changer transitions 0/60 dead transitions. [2023-08-27 12:49:59,380 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 60 transitions, 248 flow [2023-08-27 12:49:59,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 12:49:59,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 12:49:59,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 422 transitions. [2023-08-27 12:49:59,381 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45230439442658094 [2023-08-27 12:49:59,382 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 422 transitions. [2023-08-27 12:49:59,382 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 422 transitions. [2023-08-27 12:49:59,382 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 12:49:59,382 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 422 transitions. [2023-08-27 12:49:59,383 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 140.66666666666666) internal successors, (422), 3 states have internal predecessors, (422), 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) [2023-08-27 12:49:59,385 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 311.0) internal successors, (1244), 4 states have internal predecessors, (1244), 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) [2023-08-27 12:49:59,385 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 311.0) internal successors, (1244), 4 states have internal predecessors, (1244), 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) [2023-08-27 12:49:59,385 INFO L175 Difference]: Start difference. First operand has 69 places, 62 transitions, 132 flow. Second operand 3 states and 422 transitions. [2023-08-27 12:49:59,385 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 60 transitions, 248 flow [2023-08-27 12:49:59,386 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 60 transitions, 247 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 12:49:59,387 INFO L231 Difference]: Finished difference. Result has 68 places, 60 transitions, 129 flow [2023-08-27 12:49:59,388 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=311, PETRI_DIFFERENCE_MINUEND_FLOW=127, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=129, PETRI_PLACES=68, PETRI_TRANSITIONS=60} [2023-08-27 12:49:59,389 INFO L281 CegarLoopForPetriNet]: 98 programPoint places, -30 predicate places. [2023-08-27 12:49:59,389 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 60 transitions, 129 flow [2023-08-27 12:49:59,389 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 121.0) internal successors, (363), 3 states have internal predecessors, (363), 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) [2023-08-27 12:49:59,389 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 12:49:59,390 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-27 12:49:59,390 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-27 12:49:59,390 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 145 more)] === [2023-08-27 12:49:59,390 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 12:49:59,390 INFO L85 PathProgramCache]: Analyzing trace with hash 2359660, now seen corresponding path program 1 times [2023-08-27 12:49:59,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 12:49:59,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261611811] [2023-08-27 12:49:59,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 12:49:59,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 12:49:59,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 12:49:59,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 12:49:59,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 12:49:59,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261611811] [2023-08-27 12:49:59,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261611811] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 12:49:59,758 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 12:49:59,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 12:49:59,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6699033] [2023-08-27 12:49:59,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 12:49:59,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 12:49:59,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 12:49:59,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 12:49:59,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 12:49:59,760 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 311 [2023-08-27 12:49:59,761 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 60 transitions, 129 flow. Second operand has 3 states, 3 states have (on average 121.0) internal successors, (363), 3 states have internal predecessors, (363), 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) [2023-08-27 12:49:59,761 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 12:49:59,761 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 311 [2023-08-27 12:49:59,761 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 12:50:42,069 INFO L124 PetriNetUnfolderBase]: 20903/30182 cut-off events. [2023-08-27 12:50:42,070 INFO L125 PetriNetUnfolderBase]: For 255/255 co-relation queries the response was YES. [2023-08-27 12:50:42,084 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60641 conditions, 30182 events. 20903/30182 cut-off events. For 255/255 co-relation queries the response was YES. Maximal size of possible extension queue 4081. Compared 213234 event pairs, 20903 based on Foata normal form. 0/6868 useless extension candidates. Maximal degree in co-relation 60637. Up to 30182 conditions per place. [2023-08-27 12:50:42,167 INFO L140 encePairwiseOnDemand]: 308/311 looper letters, 57 selfloop transitions, 1 changer transitions 0/58 dead transitions. [2023-08-27 12:50:42,167 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 58 transitions, 241 flow [2023-08-27 12:50:42,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 12:50:42,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 12:50:42,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 420 transitions. [2023-08-27 12:50:42,169 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45016077170418006 [2023-08-27 12:50:42,169 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 420 transitions. [2023-08-27 12:50:42,169 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 420 transitions. [2023-08-27 12:50:42,170 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 12:50:42,170 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 420 transitions. [2023-08-27 12:50:42,171 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 140.0) internal successors, (420), 3 states have internal predecessors, (420), 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) [2023-08-27 12:50:42,172 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 311.0) internal successors, (1244), 4 states have internal predecessors, (1244), 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) [2023-08-27 12:50:42,173 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 311.0) internal successors, (1244), 4 states have internal predecessors, (1244), 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) [2023-08-27 12:50:42,173 INFO L175 Difference]: Start difference. First operand has 68 places, 60 transitions, 129 flow. Second operand 3 states and 420 transitions. [2023-08-27 12:50:42,173 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 58 transitions, 241 flow [2023-08-27 12:50:42,174 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 58 transitions, 240 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 12:50:42,175 INFO L231 Difference]: Finished difference. Result has 67 places, 58 transitions, 126 flow [2023-08-27 12:50:42,175 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=311, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=126, PETRI_PLACES=67, PETRI_TRANSITIONS=58} [2023-08-27 12:50:42,176 INFO L281 CegarLoopForPetriNet]: 98 programPoint places, -31 predicate places. [2023-08-27 12:50:42,176 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 58 transitions, 126 flow [2023-08-27 12:50:42,176 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 121.0) internal successors, (363), 3 states have internal predecessors, (363), 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) [2023-08-27 12:50:42,176 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 12:50:42,176 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-27 12:50:42,176 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-27 12:50:42,176 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err19ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 145 more)] === [2023-08-27 12:50:42,177 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 12:50:42,177 INFO L85 PathProgramCache]: Analyzing trace with hash 2359662, now seen corresponding path program 1 times [2023-08-27 12:50:42,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 12:50:42,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388901624] [2023-08-27 12:50:42,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 12:50:42,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 12:50:42,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 12:50:42,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 12:50:42,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 12:50:42,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388901624] [2023-08-27 12:50:42,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [388901624] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 12:50:42,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 12:50:42,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 12:50:42,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157589740] [2023-08-27 12:50:42,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 12:50:42,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 12:50:42,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 12:50:42,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 12:50:42,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 12:50:42,296 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 311 [2023-08-27 12:50:42,298 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 58 transitions, 126 flow. Second operand has 3 states, 3 states have (on average 121.0) internal successors, (363), 3 states have internal predecessors, (363), 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) [2023-08-27 12:50:42,298 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 12:50:42,298 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 311 [2023-08-27 12:50:42,298 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 12:51:17,945 INFO L124 PetriNetUnfolderBase]: 18365/26556 cut-off events. [2023-08-27 12:51:17,946 INFO L125 PetriNetUnfolderBase]: For 240/240 co-relation queries the response was YES. [2023-08-27 12:51:17,956 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53358 conditions, 26556 events. 18365/26556 cut-off events. For 240/240 co-relation queries the response was YES. Maximal size of possible extension queue 3586. Compared 185082 event pairs, 18365 based on Foata normal form. 0/6144 useless extension candidates. Maximal degree in co-relation 53354. Up to 26556 conditions per place. [2023-08-27 12:51:18,006 INFO L140 encePairwiseOnDemand]: 308/311 looper letters, 55 selfloop transitions, 1 changer transitions 0/56 dead transitions. [2023-08-27 12:51:18,006 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 56 transitions, 234 flow [2023-08-27 12:51:18,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 12:51:18,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 12:51:18,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 418 transitions. [2023-08-27 12:51:18,008 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4480171489817792 [2023-08-27 12:51:18,008 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 418 transitions. [2023-08-27 12:51:18,008 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 418 transitions. [2023-08-27 12:51:18,009 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 12:51:18,009 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 418 transitions. [2023-08-27 12:51:18,010 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 139.33333333333334) internal successors, (418), 3 states have internal predecessors, (418), 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) [2023-08-27 12:51:18,011 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 311.0) internal successors, (1244), 4 states have internal predecessors, (1244), 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) [2023-08-27 12:51:18,012 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 311.0) internal successors, (1244), 4 states have internal predecessors, (1244), 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) [2023-08-27 12:51:18,012 INFO L175 Difference]: Start difference. First operand has 67 places, 58 transitions, 126 flow. Second operand 3 states and 418 transitions. [2023-08-27 12:51:18,012 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 56 transitions, 234 flow [2023-08-27 12:51:18,013 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 56 transitions, 233 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 12:51:18,014 INFO L231 Difference]: Finished difference. Result has 66 places, 56 transitions, 123 flow [2023-08-27 12:51:18,014 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=311, PETRI_DIFFERENCE_MINUEND_FLOW=121, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=123, PETRI_PLACES=66, PETRI_TRANSITIONS=56} [2023-08-27 12:51:18,015 INFO L281 CegarLoopForPetriNet]: 98 programPoint places, -32 predicate places. [2023-08-27 12:51:18,015 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 56 transitions, 123 flow [2023-08-27 12:51:18,015 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 121.0) internal successors, (363), 3 states have internal predecessors, (363), 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) [2023-08-27 12:51:18,015 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 12:51:18,015 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-27 12:51:18,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-27 12:51:18,016 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err20ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 145 more)] === [2023-08-27 12:51:18,016 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 12:51:18,016 INFO L85 PathProgramCache]: Analyzing trace with hash 2359663, now seen corresponding path program 1 times [2023-08-27 12:51:18,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 12:51:18,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177294087] [2023-08-27 12:51:18,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 12:51:18,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 12:51:18,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 12:51:18,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 12:51:18,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 12:51:18,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177294087] [2023-08-27 12:51:18,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177294087] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 12:51:18,371 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 12:51:18,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 12:51:18,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064708551] [2023-08-27 12:51:18,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 12:51:18,372 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 12:51:18,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 12:51:18,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 12:51:18,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 12:51:18,373 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 311 [2023-08-27 12:51:18,374 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 56 transitions, 123 flow. Second operand has 3 states, 3 states have (on average 121.0) internal successors, (363), 3 states have internal predecessors, (363), 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) [2023-08-27 12:51:18,374 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 12:51:18,374 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 311 [2023-08-27 12:51:18,374 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 12:51:46,232 INFO L124 PetriNetUnfolderBase]: 15991/23162 cut-off events. [2023-08-27 12:51:46,233 INFO L125 PetriNetUnfolderBase]: For 225/225 co-relation queries the response was YES. [2023-08-27 12:51:46,244 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46541 conditions, 23162 events. 15991/23162 cut-off events. For 225/225 co-relation queries the response was YES. Maximal size of possible extension queue 3123. Compared 158978 event pairs, 15991 based on Foata normal form. 0/5460 useless extension candidates. Maximal degree in co-relation 46537. Up to 23162 conditions per place. [2023-08-27 12:51:46,291 INFO L140 encePairwiseOnDemand]: 308/311 looper letters, 53 selfloop transitions, 1 changer transitions 0/54 dead transitions. [2023-08-27 12:51:46,292 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 54 transitions, 227 flow [2023-08-27 12:51:46,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 12:51:46,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 12:51:46,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 416 transitions. [2023-08-27 12:51:46,293 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44587352625937837 [2023-08-27 12:51:46,293 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 416 transitions. [2023-08-27 12:51:46,294 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 416 transitions. [2023-08-27 12:51:46,294 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 12:51:46,294 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 416 transitions. [2023-08-27 12:51:46,296 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 138.66666666666666) internal successors, (416), 3 states have internal predecessors, (416), 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) [2023-08-27 12:51:46,302 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 311.0) internal successors, (1244), 4 states have internal predecessors, (1244), 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) [2023-08-27 12:51:46,302 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 311.0) internal successors, (1244), 4 states have internal predecessors, (1244), 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) [2023-08-27 12:51:46,303 INFO L175 Difference]: Start difference. First operand has 66 places, 56 transitions, 123 flow. Second operand 3 states and 416 transitions. [2023-08-27 12:51:46,303 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 54 transitions, 227 flow [2023-08-27 12:51:46,304 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 54 transitions, 226 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 12:51:46,304 INFO L231 Difference]: Finished difference. Result has 65 places, 54 transitions, 120 flow [2023-08-27 12:51:46,305 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=311, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=120, PETRI_PLACES=65, PETRI_TRANSITIONS=54} [2023-08-27 12:51:46,307 INFO L281 CegarLoopForPetriNet]: 98 programPoint places, -33 predicate places. [2023-08-27 12:51:46,307 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 54 transitions, 120 flow [2023-08-27 12:51:46,307 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 121.0) internal successors, (363), 3 states have internal predecessors, (363), 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) [2023-08-27 12:51:46,308 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 12:51:46,308 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-27 12:51:46,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-27 12:51:46,308 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err22ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 145 more)] === [2023-08-27 12:51:46,308 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 12:51:46,311 INFO L85 PathProgramCache]: Analyzing trace with hash 2359665, now seen corresponding path program 1 times [2023-08-27 12:51:46,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 12:51:46,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113802271] [2023-08-27 12:51:46,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 12:51:46,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 12:51:46,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 12:51:46,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 12:51:46,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 12:51:46,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113802271] [2023-08-27 12:51:46,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113802271] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 12:51:46,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 12:51:46,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 12:51:46,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040424154] [2023-08-27 12:51:46,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 12:51:46,697 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 12:51:46,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 12:51:46,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 12:51:46,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 12:51:46,698 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 311 [2023-08-27 12:51:46,698 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 54 transitions, 120 flow. Second operand has 3 states, 3 states have (on average 121.0) internal successors, (363), 3 states have internal predecessors, (363), 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) [2023-08-27 12:51:46,698 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 12:51:46,698 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 311 [2023-08-27 12:51:46,698 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 12:52:06,720 INFO L124 PetriNetUnfolderBase]: 13887/20154 cut-off events. [2023-08-27 12:52:06,720 INFO L125 PetriNetUnfolderBase]: For 210/210 co-relation queries the response was YES. [2023-08-27 12:52:06,729 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40510 conditions, 20154 events. 13887/20154 cut-off events. For 210/210 co-relation queries the response was YES. Maximal size of possible extension queue 2703. Compared 136246 event pairs, 13887 based on Foata normal form. 0/4856 useless extension candidates. Maximal degree in co-relation 40506. Up to 20154 conditions per place. [2023-08-27 12:52:06,763 INFO L140 encePairwiseOnDemand]: 308/311 looper letters, 51 selfloop transitions, 1 changer transitions 0/52 dead transitions. [2023-08-27 12:52:06,764 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 52 transitions, 220 flow [2023-08-27 12:52:06,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 12:52:06,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 12:52:06,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 414 transitions. [2023-08-27 12:52:06,766 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4437299035369775 [2023-08-27 12:52:06,766 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 414 transitions. [2023-08-27 12:52:06,766 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 414 transitions. [2023-08-27 12:52:06,767 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 12:52:06,767 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 414 transitions. [2023-08-27 12:52:06,768 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 138.0) internal successors, (414), 3 states have internal predecessors, (414), 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) [2023-08-27 12:52:06,769 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 311.0) internal successors, (1244), 4 states have internal predecessors, (1244), 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) [2023-08-27 12:52:06,770 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 311.0) internal successors, (1244), 4 states have internal predecessors, (1244), 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) [2023-08-27 12:52:06,770 INFO L175 Difference]: Start difference. First operand has 65 places, 54 transitions, 120 flow. Second operand 3 states and 414 transitions. [2023-08-27 12:52:06,770 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 52 transitions, 220 flow [2023-08-27 12:52:06,771 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 52 transitions, 219 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 12:52:06,772 INFO L231 Difference]: Finished difference. Result has 64 places, 52 transitions, 117 flow [2023-08-27 12:52:06,772 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=311, PETRI_DIFFERENCE_MINUEND_FLOW=115, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=117, PETRI_PLACES=64, PETRI_TRANSITIONS=52} [2023-08-27 12:52:06,772 INFO L281 CegarLoopForPetriNet]: 98 programPoint places, -34 predicate places. [2023-08-27 12:52:06,772 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 52 transitions, 117 flow [2023-08-27 12:52:06,773 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 121.0) internal successors, (363), 3 states have internal predecessors, (363), 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) [2023-08-27 12:52:06,773 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 12:52:06,773 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-27 12:52:06,773 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-27 12:52:06,773 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err23ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 145 more)] === [2023-08-27 12:52:06,773 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 12:52:06,773 INFO L85 PathProgramCache]: Analyzing trace with hash 2359666, now seen corresponding path program 1 times [2023-08-27 12:52:06,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 12:52:06,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932768562] [2023-08-27 12:52:06,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 12:52:06,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 12:52:06,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 12:52:07,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 12:52:07,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 12:52:07,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932768562] [2023-08-27 12:52:07,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1932768562] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 12:52:07,447 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 12:52:07,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 12:52:07,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453139613] [2023-08-27 12:52:07,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 12:52:07,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 12:52:07,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 12:52:07,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 12:52:07,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 12:52:07,448 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 311 [2023-08-27 12:52:07,449 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 52 transitions, 117 flow. Second operand has 3 states, 3 states have (on average 121.0) internal successors, (363), 3 states have internal predecessors, (363), 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) [2023-08-27 12:52:07,449 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 12:52:07,449 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 311 [2023-08-27 12:52:07,449 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 12:52:19,972 INFO L124 PetriNetUnfolderBase]: 11929/17352 cut-off events. [2023-08-27 12:52:19,972 INFO L125 PetriNetUnfolderBase]: For 195/195 co-relation queries the response was YES. [2023-08-27 12:52:19,981 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34891 conditions, 17352 events. 11929/17352 cut-off events. For 195/195 co-relation queries the response was YES. Maximal size of possible extension queue 2313. Compared 114932 event pairs, 11929 based on Foata normal form. 0/4286 useless extension candidates. Maximal degree in co-relation 34887. Up to 17352 conditions per place. [2023-08-27 12:52:20,010 INFO L140 encePairwiseOnDemand]: 308/311 looper letters, 49 selfloop transitions, 1 changer transitions 0/50 dead transitions. [2023-08-27 12:52:20,010 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 50 transitions, 213 flow [2023-08-27 12:52:20,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 12:52:20,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 12:52:20,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 412 transitions. [2023-08-27 12:52:20,012 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4415862808145766 [2023-08-27 12:52:20,012 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 412 transitions. [2023-08-27 12:52:20,013 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 412 transitions. [2023-08-27 12:52:20,013 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 12:52:20,013 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 412 transitions. [2023-08-27 12:52:20,014 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 137.33333333333334) internal successors, (412), 3 states have internal predecessors, (412), 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) [2023-08-27 12:52:20,015 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 311.0) internal successors, (1244), 4 states have internal predecessors, (1244), 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) [2023-08-27 12:52:20,016 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 311.0) internal successors, (1244), 4 states have internal predecessors, (1244), 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) [2023-08-27 12:52:20,016 INFO L175 Difference]: Start difference. First operand has 64 places, 52 transitions, 117 flow. Second operand 3 states and 412 transitions. [2023-08-27 12:52:20,016 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 50 transitions, 213 flow [2023-08-27 12:52:20,016 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 50 transitions, 212 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 12:52:20,017 INFO L231 Difference]: Finished difference. Result has 63 places, 50 transitions, 114 flow [2023-08-27 12:52:20,017 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=311, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=114, PETRI_PLACES=63, PETRI_TRANSITIONS=50} [2023-08-27 12:52:20,018 INFO L281 CegarLoopForPetriNet]: 98 programPoint places, -35 predicate places. [2023-08-27 12:52:20,018 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 50 transitions, 114 flow [2023-08-27 12:52:20,018 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 121.0) internal successors, (363), 3 states have internal predecessors, (363), 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) [2023-08-27 12:52:20,018 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 12:52:20,018 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-27 12:52:20,019 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-27 12:52:20,019 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 145 more)] === [2023-08-27 12:52:20,019 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 12:52:20,019 INFO L85 PathProgramCache]: Analyzing trace with hash 2359644, now seen corresponding path program 1 times [2023-08-27 12:52:20,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 12:52:20,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518575495] [2023-08-27 12:52:20,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 12:52:20,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 12:52:20,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 12:52:20,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 12:52:20,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 12:52:20,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518575495] [2023-08-27 12:52:20,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518575495] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 12:52:20,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 12:52:20,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 12:52:20,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514281301] [2023-08-27 12:52:20,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 12:52:20,067 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 12:52:20,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 12:52:20,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 12:52:20,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 12:52:20,068 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 311 [2023-08-27 12:52:20,069 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 50 transitions, 114 flow. Second operand has 3 states, 3 states have (on average 121.0) internal successors, (363), 3 states have internal predecessors, (363), 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) [2023-08-27 12:52:20,069 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 12:52:20,069 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 311 [2023-08-27 12:52:20,069 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 12:52:31,119 INFO L124 PetriNetUnfolderBase]: 10133/14776 cut-off events. [2023-08-27 12:52:31,119 INFO L125 PetriNetUnfolderBase]: For 182/182 co-relation queries the response was YES. [2023-08-27 12:52:31,126 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29714 conditions, 14776 events. 10133/14776 cut-off events. For 182/182 co-relation queries the response was YES. Maximal size of possible extension queue 1964. Compared 96328 event pairs, 10133 based on Foata normal form. 0/3744 useless extension candidates. Maximal degree in co-relation 29710. Up to 14776 conditions per place. [2023-08-27 12:52:31,149 INFO L140 encePairwiseOnDemand]: 308/311 looper letters, 47 selfloop transitions, 1 changer transitions 0/48 dead transitions. [2023-08-27 12:52:31,149 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 48 transitions, 206 flow [2023-08-27 12:52:31,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 12:52:31,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 12:52:31,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 410 transitions. [2023-08-27 12:52:31,150 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43944265809217575 [2023-08-27 12:52:31,150 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 410 transitions. [2023-08-27 12:52:31,150 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 410 transitions. [2023-08-27 12:52:31,151 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 12:52:31,151 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 410 transitions. [2023-08-27 12:52:31,152 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 136.66666666666666) internal successors, (410), 3 states have internal predecessors, (410), 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) [2023-08-27 12:52:31,153 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 311.0) internal successors, (1244), 4 states have internal predecessors, (1244), 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) [2023-08-27 12:52:31,154 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 311.0) internal successors, (1244), 4 states have internal predecessors, (1244), 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) [2023-08-27 12:52:31,154 INFO L175 Difference]: Start difference. First operand has 63 places, 50 transitions, 114 flow. Second operand 3 states and 410 transitions. [2023-08-27 12:52:31,154 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 48 transitions, 206 flow [2023-08-27 12:52:31,154 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 48 transitions, 205 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 12:52:31,155 INFO L231 Difference]: Finished difference. Result has 62 places, 48 transitions, 111 flow [2023-08-27 12:52:31,155 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=311, PETRI_DIFFERENCE_MINUEND_FLOW=109, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=111, PETRI_PLACES=62, PETRI_TRANSITIONS=48} [2023-08-27 12:52:31,156 INFO L281 CegarLoopForPetriNet]: 98 programPoint places, -36 predicate places. [2023-08-27 12:52:31,156 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 48 transitions, 111 flow [2023-08-27 12:52:31,156 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 121.0) internal successors, (363), 3 states have internal predecessors, (363), 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) [2023-08-27 12:52:31,156 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 12:52:31,156 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-27 12:52:31,156 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-27 12:52:31,157 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 145 more)] === [2023-08-27 12:52:31,157 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 12:52:31,157 INFO L85 PathProgramCache]: Analyzing trace with hash 2359645, now seen corresponding path program 1 times [2023-08-27 12:52:31,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 12:52:31,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960105341] [2023-08-27 12:52:31,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 12:52:31,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 12:52:31,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 12:52:31,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 12:52:31,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 12:52:31,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960105341] [2023-08-27 12:52:31,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960105341] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 12:52:31,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 12:52:31,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 12:52:31,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068001967] [2023-08-27 12:52:31,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 12:52:31,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 12:52:31,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 12:52:31,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 12:52:31,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 12:52:31,214 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 311 [2023-08-27 12:52:31,214 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 48 transitions, 111 flow. Second operand has 3 states, 3 states have (on average 121.0) internal successors, (363), 3 states have internal predecessors, (363), 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) [2023-08-27 12:52:31,214 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 12:52:31,214 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 311 [2023-08-27 12:52:31,215 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 12:52:40,954 INFO L124 PetriNetUnfolderBase]: 8481/12404 cut-off events. [2023-08-27 12:52:40,954 INFO L125 PetriNetUnfolderBase]: For 169/169 co-relation queries the response was YES. [2023-08-27 12:52:40,960 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24947 conditions, 12404 events. 8481/12404 cut-off events. For 169/169 co-relation queries the response was YES. Maximal size of possible extension queue 1643. Compared 79408 event pairs, 8481 based on Foata normal form. 0/3238 useless extension candidates. Maximal degree in co-relation 24943. Up to 12404 conditions per place. [2023-08-27 12:52:40,979 INFO L140 encePairwiseOnDemand]: 308/311 looper letters, 45 selfloop transitions, 1 changer transitions 0/46 dead transitions. [2023-08-27 12:52:40,979 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 46 transitions, 199 flow [2023-08-27 12:52:40,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 12:52:40,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 12:52:40,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 408 transitions. [2023-08-27 12:52:40,981 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43729903536977494 [2023-08-27 12:52:40,981 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 408 transitions. [2023-08-27 12:52:40,981 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 408 transitions. [2023-08-27 12:52:40,981 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 12:52:40,982 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 408 transitions. [2023-08-27 12:52:40,983 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 136.0) internal successors, (408), 3 states have internal predecessors, (408), 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) [2023-08-27 12:52:40,984 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 311.0) internal successors, (1244), 4 states have internal predecessors, (1244), 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) [2023-08-27 12:52:40,984 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 311.0) internal successors, (1244), 4 states have internal predecessors, (1244), 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) [2023-08-27 12:52:40,984 INFO L175 Difference]: Start difference. First operand has 62 places, 48 transitions, 111 flow. Second operand 3 states and 408 transitions. [2023-08-27 12:52:40,984 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 46 transitions, 199 flow [2023-08-27 12:52:40,985 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 46 transitions, 198 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 12:52:40,986 INFO L231 Difference]: Finished difference. Result has 61 places, 46 transitions, 108 flow [2023-08-27 12:52:40,986 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=311, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=108, PETRI_PLACES=61, PETRI_TRANSITIONS=46} [2023-08-27 12:52:40,986 INFO L281 CegarLoopForPetriNet]: 98 programPoint places, -37 predicate places. [2023-08-27 12:52:40,986 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 46 transitions, 108 flow [2023-08-27 12:52:40,986 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 121.0) internal successors, (363), 3 states have internal predecessors, (363), 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) [2023-08-27 12:52:40,987 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 12:52:40,987 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-27 12:52:40,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-27 12:52:40,987 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 145 more)] === [2023-08-27 12:52:40,987 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 12:52:40,987 INFO L85 PathProgramCache]: Analyzing trace with hash 2359647, now seen corresponding path program 1 times [2023-08-27 12:52:40,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 12:52:40,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349765091] [2023-08-27 12:52:40,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 12:52:40,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 12:52:41,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 12:52:41,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 12:52:41,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 12:52:41,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349765091] [2023-08-27 12:52:41,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349765091] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 12:52:41,084 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 12:52:41,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 12:52:41,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933489995] [2023-08-27 12:52:41,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 12:52:41,084 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 12:52:41,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 12:52:41,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 12:52:41,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 12:52:41,085 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 311 [2023-08-27 12:52:41,086 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 46 transitions, 108 flow. Second operand has 3 states, 3 states have (on average 121.0) internal successors, (363), 3 states have internal predecessors, (363), 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) [2023-08-27 12:52:41,086 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 12:52:41,086 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 311 [2023-08-27 12:52:41,086 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 12:52:49,584 INFO L124 PetriNetUnfolderBase]: 7043/10338 cut-off events. [2023-08-27 12:52:49,584 INFO L125 PetriNetUnfolderBase]: For 156/156 co-relation queries the response was YES. [2023-08-27 12:52:49,590 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20802 conditions, 10338 events. 7043/10338 cut-off events. For 156/156 co-relation queries the response was YES. Maximal size of possible extension queue 1357. Compared 64698 event pairs, 7043 based on Foata normal form. 0/2796 useless extension candidates. Maximal degree in co-relation 20798. Up to 10338 conditions per place. [2023-08-27 12:52:49,605 INFO L140 encePairwiseOnDemand]: 308/311 looper letters, 43 selfloop transitions, 1 changer transitions 0/44 dead transitions. [2023-08-27 12:52:49,605 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 44 transitions, 192 flow [2023-08-27 12:52:49,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 12:52:49,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 12:52:49,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 406 transitions. [2023-08-27 12:52:49,607 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43515541264737406 [2023-08-27 12:52:49,607 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 406 transitions. [2023-08-27 12:52:49,607 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 406 transitions. [2023-08-27 12:52:49,607 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 12:52:49,607 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 406 transitions. [2023-08-27 12:52:49,608 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 135.33333333333334) internal successors, (406), 3 states have internal predecessors, (406), 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) [2023-08-27 12:52:49,609 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 311.0) internal successors, (1244), 4 states have internal predecessors, (1244), 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) [2023-08-27 12:52:49,609 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 311.0) internal successors, (1244), 4 states have internal predecessors, (1244), 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) [2023-08-27 12:52:49,610 INFO L175 Difference]: Start difference. First operand has 61 places, 46 transitions, 108 flow. Second operand 3 states and 406 transitions. [2023-08-27 12:52:49,610 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 44 transitions, 192 flow [2023-08-27 12:52:49,610 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 44 transitions, 191 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 12:52:49,611 INFO L231 Difference]: Finished difference. Result has 60 places, 44 transitions, 105 flow [2023-08-27 12:52:49,611 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=311, PETRI_DIFFERENCE_MINUEND_FLOW=103, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=105, PETRI_PLACES=60, PETRI_TRANSITIONS=44} [2023-08-27 12:52:49,612 INFO L281 CegarLoopForPetriNet]: 98 programPoint places, -38 predicate places. [2023-08-27 12:52:49,612 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 44 transitions, 105 flow [2023-08-27 12:52:49,612 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 121.0) internal successors, (363), 3 states have internal predecessors, (363), 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) [2023-08-27 12:52:49,612 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 12:52:49,612 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-27 12:52:49,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-27 12:52:49,612 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 145 more)] === [2023-08-27 12:52:49,613 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 12:52:49,613 INFO L85 PathProgramCache]: Analyzing trace with hash 2359648, now seen corresponding path program 1 times [2023-08-27 12:52:49,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 12:52:49,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890608969] [2023-08-27 12:52:49,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 12:52:49,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 12:52:49,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 12:52:49,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 12:52:49,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 12:52:49,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890608969] [2023-08-27 12:52:49,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890608969] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 12:52:49,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 12:52:49,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 12:52:49,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344419097] [2023-08-27 12:52:49,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 12:52:49,710 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 12:52:49,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 12:52:49,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 12:52:49,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 12:52:49,711 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 311 [2023-08-27 12:52:49,711 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 44 transitions, 105 flow. Second operand has 3 states, 3 states have (on average 121.0) internal successors, (363), 3 states have internal predecessors, (363), 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) [2023-08-27 12:52:49,711 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 12:52:49,712 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 311 [2023-08-27 12:52:49,712 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 12:52:57,093 INFO L124 PetriNetUnfolderBase]: 5731/8450 cut-off events. [2023-08-27 12:52:57,094 INFO L125 PetriNetUnfolderBase]: For 143/143 co-relation queries the response was YES. [2023-08-27 12:52:57,102 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17013 conditions, 8450 events. 5731/8450 cut-off events. For 143/143 co-relation queries the response was YES. Maximal size of possible extension queue 1097. Compared 51561 event pairs, 5731 based on Foata normal form. 0/2384 useless extension candidates. Maximal degree in co-relation 17009. Up to 8450 conditions per place. [2023-08-27 12:52:57,124 INFO L140 encePairwiseOnDemand]: 308/311 looper letters, 41 selfloop transitions, 1 changer transitions 0/42 dead transitions. [2023-08-27 12:52:57,124 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 42 transitions, 185 flow [2023-08-27 12:52:57,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 12:52:57,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 12:52:57,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 404 transitions. [2023-08-27 12:52:57,126 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4330117899249732 [2023-08-27 12:52:57,126 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 404 transitions. [2023-08-27 12:52:57,126 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 404 transitions. [2023-08-27 12:52:57,126 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 12:52:57,127 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 404 transitions. [2023-08-27 12:52:57,127 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 134.66666666666666) internal successors, (404), 3 states have internal predecessors, (404), 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) [2023-08-27 12:52:57,129 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 311.0) internal successors, (1244), 4 states have internal predecessors, (1244), 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) [2023-08-27 12:52:57,129 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 311.0) internal successors, (1244), 4 states have internal predecessors, (1244), 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) [2023-08-27 12:52:57,129 INFO L175 Difference]: Start difference. First operand has 60 places, 44 transitions, 105 flow. Second operand 3 states and 404 transitions. [2023-08-27 12:52:57,129 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 42 transitions, 185 flow [2023-08-27 12:52:57,130 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 42 transitions, 184 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 12:52:57,130 INFO L231 Difference]: Finished difference. Result has 59 places, 42 transitions, 102 flow [2023-08-27 12:52:57,130 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=311, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=102, PETRI_PLACES=59, PETRI_TRANSITIONS=42} [2023-08-27 12:52:57,131 INFO L281 CegarLoopForPetriNet]: 98 programPoint places, -39 predicate places. [2023-08-27 12:52:57,131 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 42 transitions, 102 flow [2023-08-27 12:52:57,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 121.0) internal successors, (363), 3 states have internal predecessors, (363), 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) [2023-08-27 12:52:57,131 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 12:52:57,131 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-27 12:52:57,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-27 12:52:57,132 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 145 more)] === [2023-08-27 12:52:57,132 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 12:52:57,132 INFO L85 PathProgramCache]: Analyzing trace with hash 2359650, now seen corresponding path program 1 times [2023-08-27 12:52:57,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 12:52:57,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074728442] [2023-08-27 12:52:57,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 12:52:57,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 12:52:57,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 12:52:57,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 12:52:57,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 12:52:57,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074728442] [2023-08-27 12:52:57,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074728442] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 12:52:57,190 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 12:52:57,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 12:52:57,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959910695] [2023-08-27 12:52:57,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 12:52:57,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 12:52:57,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 12:52:57,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 12:52:57,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 12:52:57,192 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 311 [2023-08-27 12:52:57,192 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 42 transitions, 102 flow. Second operand has 3 states, 3 states have (on average 121.0) internal successors, (363), 3 states have internal predecessors, (363), 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) [2023-08-27 12:52:57,192 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 12:52:57,192 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 311 [2023-08-27 12:52:57,193 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 12:53:03,479 INFO L124 PetriNetUnfolderBase]: 4557/6756 cut-off events. [2023-08-27 12:53:03,479 INFO L125 PetriNetUnfolderBase]: For 132/132 co-relation queries the response was YES. [2023-08-27 12:53:03,483 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13606 conditions, 6756 events. 4557/6756 cut-off events. For 132/132 co-relation queries the response was YES. Maximal size of possible extension queue 870. Compared 40094 event pairs, 4557 based on Foata normal form. 0/2000 useless extension candidates. Maximal degree in co-relation 13602. Up to 6756 conditions per place. [2023-08-27 12:53:03,495 INFO L140 encePairwiseOnDemand]: 308/311 looper letters, 39 selfloop transitions, 1 changer transitions 0/40 dead transitions. [2023-08-27 12:53:03,495 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 40 transitions, 178 flow [2023-08-27 12:53:03,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 12:53:03,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 12:53:03,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 402 transitions. [2023-08-27 12:53:03,497 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43086816720257237 [2023-08-27 12:53:03,497 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 402 transitions. [2023-08-27 12:53:03,497 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 402 transitions. [2023-08-27 12:53:03,497 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 12:53:03,497 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 402 transitions. [2023-08-27 12:53:03,498 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 134.0) internal successors, (402), 3 states have internal predecessors, (402), 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) [2023-08-27 12:53:03,499 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 311.0) internal successors, (1244), 4 states have internal predecessors, (1244), 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) [2023-08-27 12:53:03,499 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 311.0) internal successors, (1244), 4 states have internal predecessors, (1244), 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) [2023-08-27 12:53:03,500 INFO L175 Difference]: Start difference. First operand has 59 places, 42 transitions, 102 flow. Second operand 3 states and 402 transitions. [2023-08-27 12:53:03,500 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 40 transitions, 178 flow [2023-08-27 12:53:03,500 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 40 transitions, 177 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 12:53:03,501 INFO L231 Difference]: Finished difference. Result has 58 places, 40 transitions, 99 flow [2023-08-27 12:53:03,501 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=311, PETRI_DIFFERENCE_MINUEND_FLOW=97, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=99, PETRI_PLACES=58, PETRI_TRANSITIONS=40} [2023-08-27 12:53:03,502 INFO L281 CegarLoopForPetriNet]: 98 programPoint places, -40 predicate places. [2023-08-27 12:53:03,502 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 40 transitions, 99 flow [2023-08-27 12:53:03,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 121.0) internal successors, (363), 3 states have internal predecessors, (363), 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) [2023-08-27 12:53:03,502 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 12:53:03,502 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-27 12:53:03,502 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-27 12:53:03,502 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 145 more)] === [2023-08-27 12:53:03,503 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 12:53:03,503 INFO L85 PathProgramCache]: Analyzing trace with hash 2359651, now seen corresponding path program 1 times [2023-08-27 12:53:03,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 12:53:03,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246706459] [2023-08-27 12:53:03,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 12:53:03,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 12:53:03,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 12:53:03,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 12:53:03,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 12:53:03,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246706459] [2023-08-27 12:53:03,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246706459] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 12:53:03,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 12:53:03,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 12:53:03,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071606993] [2023-08-27 12:53:03,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 12:53:03,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 12:53:03,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 12:53:03,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 12:53:03,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 12:53:03,567 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 311 [2023-08-27 12:53:03,567 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 40 transitions, 99 flow. Second operand has 3 states, 3 states have (on average 121.0) internal successors, (363), 3 states have internal predecessors, (363), 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) [2023-08-27 12:53:03,567 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 12:53:03,567 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 311 [2023-08-27 12:53:03,567 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 12:53:08,601 INFO L124 PetriNetUnfolderBase]: 3507/5238 cut-off events. [2023-08-27 12:53:08,602 INFO L125 PetriNetUnfolderBase]: For 121/121 co-relation queries the response was YES. [2023-08-27 12:53:08,605 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10553 conditions, 5238 events. 3507/5238 cut-off events. For 121/121 co-relation queries the response was YES. Maximal size of possible extension queue 667. Compared 30091 event pairs, 3507 based on Foata normal form. 0/1648 useless extension candidates. Maximal degree in co-relation 10549. Up to 5238 conditions per place. [2023-08-27 12:53:08,613 INFO L140 encePairwiseOnDemand]: 308/311 looper letters, 37 selfloop transitions, 1 changer transitions 0/38 dead transitions. [2023-08-27 12:53:08,613 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 38 transitions, 171 flow [2023-08-27 12:53:08,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 12:53:08,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 12:53:08,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 400 transitions. [2023-08-27 12:53:08,615 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4287245444801715 [2023-08-27 12:53:08,615 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 400 transitions. [2023-08-27 12:53:08,615 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 400 transitions. [2023-08-27 12:53:08,615 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 12:53:08,615 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 400 transitions. [2023-08-27 12:53:08,616 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 133.33333333333334) internal successors, (400), 3 states have internal predecessors, (400), 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) [2023-08-27 12:53:08,617 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 311.0) internal successors, (1244), 4 states have internal predecessors, (1244), 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) [2023-08-27 12:53:08,618 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 311.0) internal successors, (1244), 4 states have internal predecessors, (1244), 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) [2023-08-27 12:53:08,618 INFO L175 Difference]: Start difference. First operand has 58 places, 40 transitions, 99 flow. Second operand 3 states and 400 transitions. [2023-08-27 12:53:08,618 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 38 transitions, 171 flow [2023-08-27 12:53:08,618 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 38 transitions, 170 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 12:53:08,619 INFO L231 Difference]: Finished difference. Result has 57 places, 38 transitions, 96 flow [2023-08-27 12:53:08,619 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=311, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=96, PETRI_PLACES=57, PETRI_TRANSITIONS=38} [2023-08-27 12:53:08,619 INFO L281 CegarLoopForPetriNet]: 98 programPoint places, -41 predicate places. [2023-08-27 12:53:08,620 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 38 transitions, 96 flow [2023-08-27 12:53:08,620 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 121.0) internal successors, (363), 3 states have internal predecessors, (363), 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) [2023-08-27 12:53:08,620 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 12:53:08,620 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-27 12:53:08,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-27 12:53:08,620 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 145 more)] === [2023-08-27 12:53:08,620 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 12:53:08,620 INFO L85 PathProgramCache]: Analyzing trace with hash 2359653, now seen corresponding path program 1 times [2023-08-27 12:53:08,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 12:53:08,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186545590] [2023-08-27 12:53:08,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 12:53:08,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 12:53:08,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 12:53:08,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 12:53:08,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 12:53:08,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186545590] [2023-08-27 12:53:08,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1186545590] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 12:53:08,736 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 12:53:08,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 12:53:08,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794666626] [2023-08-27 12:53:08,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 12:53:08,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 12:53:08,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 12:53:08,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 12:53:08,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 12:53:08,737 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 311 [2023-08-27 12:53:08,738 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 38 transitions, 96 flow. Second operand has 3 states, 3 states have (on average 121.0) internal successors, (363), 3 states have internal predecessors, (363), 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) [2023-08-27 12:53:08,738 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 12:53:08,738 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 311 [2023-08-27 12:53:08,738 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 12:53:12,716 INFO L124 PetriNetUnfolderBase]: 2615/3946 cut-off events. [2023-08-27 12:53:12,717 INFO L125 PetriNetUnfolderBase]: For 110/110 co-relation queries the response was YES. [2023-08-27 12:53:12,720 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7958 conditions, 3946 events. 2615/3946 cut-off events. For 110/110 co-relation queries the response was YES. Maximal size of possible extension queue 491. Compared 21972 event pairs, 2615 based on Foata normal form. 0/1344 useless extension candidates. Maximal degree in co-relation 7954. Up to 3946 conditions per place. [2023-08-27 12:53:12,725 INFO L140 encePairwiseOnDemand]: 308/311 looper letters, 35 selfloop transitions, 1 changer transitions 0/36 dead transitions. [2023-08-27 12:53:12,725 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 36 transitions, 164 flow [2023-08-27 12:53:12,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 12:53:12,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 12:53:12,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 398 transitions. [2023-08-27 12:53:12,727 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4265809217577706 [2023-08-27 12:53:12,727 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 398 transitions. [2023-08-27 12:53:12,727 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 398 transitions. [2023-08-27 12:53:12,727 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 12:53:12,727 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 398 transitions. [2023-08-27 12:53:12,728 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 132.66666666666666) internal successors, (398), 3 states have internal predecessors, (398), 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) [2023-08-27 12:53:12,729 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 311.0) internal successors, (1244), 4 states have internal predecessors, (1244), 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) [2023-08-27 12:53:12,729 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 311.0) internal successors, (1244), 4 states have internal predecessors, (1244), 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) [2023-08-27 12:53:12,730 INFO L175 Difference]: Start difference. First operand has 57 places, 38 transitions, 96 flow. Second operand 3 states and 398 transitions. [2023-08-27 12:53:12,730 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 36 transitions, 164 flow [2023-08-27 12:53:12,730 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 36 transitions, 163 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 12:53:12,731 INFO L231 Difference]: Finished difference. Result has 56 places, 36 transitions, 93 flow [2023-08-27 12:53:12,731 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=311, PETRI_DIFFERENCE_MINUEND_FLOW=91, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=93, PETRI_PLACES=56, PETRI_TRANSITIONS=36} [2023-08-27 12:53:12,731 INFO L281 CegarLoopForPetriNet]: 98 programPoint places, -42 predicate places. [2023-08-27 12:53:12,731 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 36 transitions, 93 flow [2023-08-27 12:53:12,731 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 121.0) internal successors, (363), 3 states have internal predecessors, (363), 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) [2023-08-27 12:53:12,731 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 12:53:12,732 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-27 12:53:12,732 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-27 12:53:12,732 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 145 more)] === [2023-08-27 12:53:12,732 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 12:53:12,732 INFO L85 PathProgramCache]: Analyzing trace with hash 2359654, now seen corresponding path program 1 times [2023-08-27 12:53:12,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 12:53:12,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988729612] [2023-08-27 12:53:12,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 12:53:12,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 12:53:12,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 12:53:12,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 12:53:12,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 12:53:12,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988729612] [2023-08-27 12:53:12,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [988729612] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 12:53:12,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 12:53:12,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 12:53:12,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602563887] [2023-08-27 12:53:12,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 12:53:12,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 12:53:12,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 12:53:12,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 12:53:12,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 12:53:12,865 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 311 [2023-08-27 12:53:12,866 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 36 transitions, 93 flow. Second operand has 3 states, 3 states have (on average 121.0) internal successors, (363), 3 states have internal predecessors, (363), 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) [2023-08-27 12:53:12,866 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 12:53:12,866 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 311 [2023-08-27 12:53:12,866 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 12:53:15,752 INFO L124 PetriNetUnfolderBase]: 1829/2804 cut-off events. [2023-08-27 12:53:15,752 INFO L125 PetriNetUnfolderBase]: For 99/99 co-relation queries the response was YES. [2023-08-27 12:53:15,754 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5663 conditions, 2804 events. 1829/2804 cut-off events. For 99/99 co-relation queries the response was YES. Maximal size of possible extension queue 337. Compared 14960 event pairs, 1829 based on Foata normal form. 0/1066 useless extension candidates. Maximal degree in co-relation 5659. Up to 2804 conditions per place. [2023-08-27 12:53:15,758 INFO L140 encePairwiseOnDemand]: 308/311 looper letters, 33 selfloop transitions, 1 changer transitions 0/34 dead transitions. [2023-08-27 12:53:15,758 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 34 transitions, 157 flow [2023-08-27 12:53:15,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 12:53:15,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 12:53:15,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 396 transitions. [2023-08-27 12:53:15,761 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42443729903536975 [2023-08-27 12:53:15,761 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 396 transitions. [2023-08-27 12:53:15,761 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 396 transitions. [2023-08-27 12:53:15,761 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 12:53:15,761 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 396 transitions. [2023-08-27 12:53:15,762 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 132.0) internal successors, (396), 3 states have internal predecessors, (396), 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) [2023-08-27 12:53:15,764 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 311.0) internal successors, (1244), 4 states have internal predecessors, (1244), 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) [2023-08-27 12:53:15,765 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 311.0) internal successors, (1244), 4 states have internal predecessors, (1244), 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) [2023-08-27 12:53:15,765 INFO L175 Difference]: Start difference. First operand has 56 places, 36 transitions, 93 flow. Second operand 3 states and 396 transitions. [2023-08-27 12:53:15,765 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 34 transitions, 157 flow [2023-08-27 12:53:15,765 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 34 transitions, 156 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 12:53:15,766 INFO L231 Difference]: Finished difference. Result has 55 places, 34 transitions, 90 flow [2023-08-27 12:53:15,766 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=311, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=90, PETRI_PLACES=55, PETRI_TRANSITIONS=34} [2023-08-27 12:53:15,767 INFO L281 CegarLoopForPetriNet]: 98 programPoint places, -43 predicate places. [2023-08-27 12:53:15,767 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 34 transitions, 90 flow [2023-08-27 12:53:15,767 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 121.0) internal successors, (363), 3 states have internal predecessors, (363), 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) [2023-08-27 12:53:15,767 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 12:53:15,767 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-27 12:53:15,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-27 12:53:15,767 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 145 more)] === [2023-08-27 12:53:15,768 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 12:53:15,768 INFO L85 PathProgramCache]: Analyzing trace with hash 2359656, now seen corresponding path program 1 times [2023-08-27 12:53:15,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 12:53:15,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314960682] [2023-08-27 12:53:15,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 12:53:15,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 12:53:15,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 12:53:15,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 12:53:15,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 12:53:15,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314960682] [2023-08-27 12:53:15,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314960682] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 12:53:15,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 12:53:15,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 12:53:15,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496184677] [2023-08-27 12:53:15,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 12:53:15,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 12:53:15,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 12:53:15,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 12:53:15,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 12:53:15,844 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 311 [2023-08-27 12:53:15,844 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 34 transitions, 90 flow. Second operand has 3 states, 3 states have (on average 121.0) internal successors, (363), 3 states have internal predecessors, (363), 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) [2023-08-27 12:53:15,845 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 12:53:15,845 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 311 [2023-08-27 12:53:15,845 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 12:53:17,834 INFO L124 PetriNetUnfolderBase]: 1157/1824 cut-off events. [2023-08-27 12:53:17,834 INFO L125 PetriNetUnfolderBase]: For 90/90 co-relation queries the response was YES. [2023-08-27 12:53:17,835 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3690 conditions, 1824 events. 1157/1824 cut-off events. For 90/90 co-relation queries the response was YES. Maximal size of possible extension queue 208. Compared 9251 event pairs, 1157 based on Foata normal form. 0/816 useless extension candidates. Maximal degree in co-relation 3686. Up to 1824 conditions per place. [2023-08-27 12:53:17,838 INFO L140 encePairwiseOnDemand]: 308/311 looper letters, 31 selfloop transitions, 1 changer transitions 0/32 dead transitions. [2023-08-27 12:53:17,838 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 32 transitions, 150 flow [2023-08-27 12:53:17,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 12:53:17,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 12:53:17,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 394 transitions. [2023-08-27 12:53:17,839 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42229367631296894 [2023-08-27 12:53:17,839 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 394 transitions. [2023-08-27 12:53:17,839 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 394 transitions. [2023-08-27 12:53:17,839 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 12:53:17,839 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 394 transitions. [2023-08-27 12:53:17,840 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 131.33333333333334) internal successors, (394), 3 states have internal predecessors, (394), 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) [2023-08-27 12:53:17,841 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 311.0) internal successors, (1244), 4 states have internal predecessors, (1244), 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) [2023-08-27 12:53:17,842 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 311.0) internal successors, (1244), 4 states have internal predecessors, (1244), 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) [2023-08-27 12:53:17,842 INFO L175 Difference]: Start difference. First operand has 55 places, 34 transitions, 90 flow. Second operand 3 states and 394 transitions. [2023-08-27 12:53:17,842 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 32 transitions, 150 flow [2023-08-27 12:53:17,842 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 32 transitions, 149 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 12:53:17,843 INFO L231 Difference]: Finished difference. Result has 54 places, 32 transitions, 87 flow [2023-08-27 12:53:17,843 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=311, PETRI_DIFFERENCE_MINUEND_FLOW=85, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=87, PETRI_PLACES=54, PETRI_TRANSITIONS=32} [2023-08-27 12:53:17,843 INFO L281 CegarLoopForPetriNet]: 98 programPoint places, -44 predicate places. [2023-08-27 12:53:17,843 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 32 transitions, 87 flow [2023-08-27 12:53:17,844 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 121.0) internal successors, (363), 3 states have internal predecessors, (363), 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) [2023-08-27 12:53:17,844 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 12:53:17,844 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-27 12:53:17,844 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-08-27 12:53:17,844 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting thread2Err19ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 145 more)] === [2023-08-27 12:53:17,844 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 12:53:17,844 INFO L85 PathProgramCache]: Analyzing trace with hash -2027105783, now seen corresponding path program 1 times [2023-08-27 12:53:17,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 12:53:17,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941627147] [2023-08-27 12:53:17,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 12:53:17,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 12:53:17,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 12:53:18,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 12:53:18,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 12:53:18,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941627147] [2023-08-27 12:53:18,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941627147] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 12:53:18,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 12:53:18,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 12:53:18,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501151638] [2023-08-27 12:53:18,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 12:53:18,008 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 12:53:18,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 12:53:18,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 12:53:18,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 12:53:18,009 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 311 [2023-08-27 12:53:18,009 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 32 transitions, 87 flow. Second operand has 3 states, 3 states have (on average 121.66666666666667) internal successors, (365), 3 states have internal predecessors, (365), 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) [2023-08-27 12:53:18,009 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 12:53:18,009 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 311 [2023-08-27 12:53:18,009 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 12:53:19,479 INFO L124 PetriNetUnfolderBase]: 933/1480 cut-off events. [2023-08-27 12:53:19,479 INFO L125 PetriNetUnfolderBase]: For 72/72 co-relation queries the response was YES. [2023-08-27 12:53:19,481 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3001 conditions, 1480 events. 933/1480 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 169. Compared 7203 event pairs, 933 based on Foata normal form. 0/682 useless extension candidates. Maximal degree in co-relation 2997. Up to 1480 conditions per place. [2023-08-27 12:53:19,483 INFO L140 encePairwiseOnDemand]: 308/311 looper letters, 29 selfloop transitions, 1 changer transitions 0/30 dead transitions. [2023-08-27 12:53:19,483 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 30 transitions, 143 flow [2023-08-27 12:53:19,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 12:53:19,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 12:53:19,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 392 transitions. [2023-08-27 12:53:19,485 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42015005359056806 [2023-08-27 12:53:19,485 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 392 transitions. [2023-08-27 12:53:19,485 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 392 transitions. [2023-08-27 12:53:19,486 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 12:53:19,486 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 392 transitions. [2023-08-27 12:53:19,486 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 130.66666666666666) internal successors, (392), 3 states have internal predecessors, (392), 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) [2023-08-27 12:53:19,487 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 311.0) internal successors, (1244), 4 states have internal predecessors, (1244), 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) [2023-08-27 12:53:19,487 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 311.0) internal successors, (1244), 4 states have internal predecessors, (1244), 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) [2023-08-27 12:53:19,487 INFO L175 Difference]: Start difference. First operand has 54 places, 32 transitions, 87 flow. Second operand 3 states and 392 transitions. [2023-08-27 12:53:19,487 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 30 transitions, 143 flow [2023-08-27 12:53:19,488 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 30 transitions, 142 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 12:53:19,488 INFO L231 Difference]: Finished difference. Result has 53 places, 30 transitions, 84 flow [2023-08-27 12:53:19,489 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=311, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=84, PETRI_PLACES=53, PETRI_TRANSITIONS=30} [2023-08-27 12:53:19,489 INFO L281 CegarLoopForPetriNet]: 98 programPoint places, -45 predicate places. [2023-08-27 12:53:19,489 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 30 transitions, 84 flow [2023-08-27 12:53:19,489 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 121.66666666666667) internal successors, (365), 3 states have internal predecessors, (365), 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) [2023-08-27 12:53:19,489 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 12:53:19,489 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-27 12:53:19,489 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-08-27 12:53:19,489 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting thread2Err20ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 145 more)] === [2023-08-27 12:53:19,490 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 12:53:19,490 INFO L85 PathProgramCache]: Analyzing trace with hash -2027105782, now seen corresponding path program 1 times [2023-08-27 12:53:19,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 12:53:19,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108425740] [2023-08-27 12:53:19,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 12:53:19,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 12:53:19,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 12:53:19,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 12:53:19,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 12:53:19,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108425740] [2023-08-27 12:53:19,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1108425740] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 12:53:19,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 12:53:19,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 12:53:19,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413809102] [2023-08-27 12:53:19,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 12:53:19,749 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 12:53:19,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 12:53:19,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 12:53:19,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 12:53:19,750 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 311 [2023-08-27 12:53:19,750 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 30 transitions, 84 flow. Second operand has 3 states, 3 states have (on average 121.66666666666667) internal successors, (365), 3 states have internal predecessors, (365), 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) [2023-08-27 12:53:19,750 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 12:53:19,750 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 311 [2023-08-27 12:53:19,750 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 12:53:20,799 INFO L124 PetriNetUnfolderBase]: 733/1172 cut-off events. [2023-08-27 12:53:20,799 INFO L125 PetriNetUnfolderBase]: For 56/56 co-relation queries the response was YES. [2023-08-27 12:53:20,800 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2384 conditions, 1172 events. 733/1172 cut-off events. For 56/56 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 5440 event pairs, 733 based on Foata normal form. 0/560 useless extension candidates. Maximal degree in co-relation 2380. Up to 1172 conditions per place. [2023-08-27 12:53:20,802 INFO L140 encePairwiseOnDemand]: 308/311 looper letters, 27 selfloop transitions, 1 changer transitions 0/28 dead transitions. [2023-08-27 12:53:20,802 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 28 transitions, 136 flow [2023-08-27 12:53:20,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 12:53:20,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 12:53:20,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 390 transitions. [2023-08-27 12:53:20,804 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4180064308681672 [2023-08-27 12:53:20,804 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 390 transitions. [2023-08-27 12:53:20,804 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 390 transitions. [2023-08-27 12:53:20,804 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 12:53:20,804 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 390 transitions. [2023-08-27 12:53:20,805 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 130.0) internal successors, (390), 3 states have internal predecessors, (390), 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) [2023-08-27 12:53:20,806 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 311.0) internal successors, (1244), 4 states have internal predecessors, (1244), 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) [2023-08-27 12:53:20,806 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 311.0) internal successors, (1244), 4 states have internal predecessors, (1244), 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) [2023-08-27 12:53:20,806 INFO L175 Difference]: Start difference. First operand has 53 places, 30 transitions, 84 flow. Second operand 3 states and 390 transitions. [2023-08-27 12:53:20,806 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 28 transitions, 136 flow [2023-08-27 12:53:20,807 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 28 transitions, 135 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 12:53:20,807 INFO L231 Difference]: Finished difference. Result has 52 places, 28 transitions, 81 flow [2023-08-27 12:53:20,807 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=311, PETRI_DIFFERENCE_MINUEND_FLOW=79, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=81, PETRI_PLACES=52, PETRI_TRANSITIONS=28} [2023-08-27 12:53:20,808 INFO L281 CegarLoopForPetriNet]: 98 programPoint places, -46 predicate places. [2023-08-27 12:53:20,808 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 28 transitions, 81 flow [2023-08-27 12:53:20,808 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 121.66666666666667) internal successors, (365), 3 states have internal predecessors, (365), 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) [2023-08-27 12:53:20,808 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 12:53:20,808 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-27 12:53:20,808 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-08-27 12:53:20,808 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 145 more)] === [2023-08-27 12:53:20,809 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 12:53:20,809 INFO L85 PathProgramCache]: Analyzing trace with hash -2027105801, now seen corresponding path program 1 times [2023-08-27 12:53:20,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 12:53:20,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132608816] [2023-08-27 12:53:20,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 12:53:20,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 12:53:20,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 12:53:20,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 12:53:20,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 12:53:20,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132608816] [2023-08-27 12:53:20,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132608816] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 12:53:20,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 12:53:20,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 12:53:20,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998157288] [2023-08-27 12:53:20,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 12:53:20,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 12:53:20,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 12:53:20,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 12:53:20,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 12:53:20,850 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 311 [2023-08-27 12:53:20,851 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 28 transitions, 81 flow. Second operand has 3 states, 3 states have (on average 121.66666666666667) internal successors, (365), 3 states have internal predecessors, (365), 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) [2023-08-27 12:53:20,851 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 12:53:20,851 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 311 [2023-08-27 12:53:20,851 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 12:53:21,642 INFO L124 PetriNetUnfolderBase]: 557/900 cut-off events. [2023-08-27 12:53:21,642 INFO L125 PetriNetUnfolderBase]: For 42/42 co-relation queries the response was YES. [2023-08-27 12:53:21,643 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1839 conditions, 900 events. 557/900 cut-off events. For 42/42 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 3978 event pairs, 557 based on Foata normal form. 0/450 useless extension candidates. Maximal degree in co-relation 1835. Up to 900 conditions per place. [2023-08-27 12:53:21,645 INFO L140 encePairwiseOnDemand]: 308/311 looper letters, 25 selfloop transitions, 1 changer transitions 0/26 dead transitions. [2023-08-27 12:53:21,645 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 26 transitions, 129 flow [2023-08-27 12:53:21,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 12:53:21,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 12:53:21,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 388 transitions. [2023-08-27 12:53:21,646 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41586280814576637 [2023-08-27 12:53:21,646 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 388 transitions. [2023-08-27 12:53:21,646 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 388 transitions. [2023-08-27 12:53:21,646 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 12:53:21,646 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 388 transitions. [2023-08-27 12:53:21,647 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 129.33333333333334) internal successors, (388), 3 states have internal predecessors, (388), 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) [2023-08-27 12:53:21,648 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 311.0) internal successors, (1244), 4 states have internal predecessors, (1244), 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) [2023-08-27 12:53:21,648 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 311.0) internal successors, (1244), 4 states have internal predecessors, (1244), 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) [2023-08-27 12:53:21,648 INFO L175 Difference]: Start difference. First operand has 52 places, 28 transitions, 81 flow. Second operand 3 states and 388 transitions. [2023-08-27 12:53:21,648 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 26 transitions, 129 flow [2023-08-27 12:53:21,648 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 26 transitions, 128 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 12:53:21,649 INFO L231 Difference]: Finished difference. Result has 51 places, 26 transitions, 78 flow [2023-08-27 12:53:21,649 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=311, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=78, PETRI_PLACES=51, PETRI_TRANSITIONS=26} [2023-08-27 12:53:21,649 INFO L281 CegarLoopForPetriNet]: 98 programPoint places, -47 predicate places. [2023-08-27 12:53:21,649 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 26 transitions, 78 flow [2023-08-27 12:53:21,649 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 121.66666666666667) internal successors, (365), 3 states have internal predecessors, (365), 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) [2023-08-27 12:53:21,649 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 12:53:21,650 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-27 12:53:21,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-08-27 12:53:21,650 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 145 more)] === [2023-08-27 12:53:21,650 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 12:53:21,650 INFO L85 PathProgramCache]: Analyzing trace with hash -2027105800, now seen corresponding path program 1 times [2023-08-27 12:53:21,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 12:53:21,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676835193] [2023-08-27 12:53:21,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 12:53:21,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 12:53:21,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 12:53:21,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 12:53:21,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 12:53:21,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676835193] [2023-08-27 12:53:21,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676835193] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 12:53:21,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 12:53:21,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 12:53:21,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280497373] [2023-08-27 12:53:21,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 12:53:21,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 12:53:21,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 12:53:21,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 12:53:21,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 12:53:21,708 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 311 [2023-08-27 12:53:21,708 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 26 transitions, 78 flow. Second operand has 3 states, 3 states have (on average 121.66666666666667) internal successors, (365), 3 states have internal predecessors, (365), 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) [2023-08-27 12:53:21,708 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 12:53:21,709 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 311 [2023-08-27 12:53:21,709 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 12:53:22,399 INFO L124 PetriNetUnfolderBase]: 405/664 cut-off events. [2023-08-27 12:53:22,399 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2023-08-27 12:53:22,400 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1366 conditions, 664 events. 405/664 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 2730 event pairs, 405 based on Foata normal form. 0/352 useless extension candidates. Maximal degree in co-relation 1362. Up to 664 conditions per place. [2023-08-27 12:53:22,401 INFO L140 encePairwiseOnDemand]: 308/311 looper letters, 23 selfloop transitions, 1 changer transitions 0/24 dead transitions. [2023-08-27 12:53:22,401 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 24 transitions, 122 flow [2023-08-27 12:53:22,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 12:53:22,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 12:53:22,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 386 transitions. [2023-08-27 12:53:22,402 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4137191854233655 [2023-08-27 12:53:22,402 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 386 transitions. [2023-08-27 12:53:22,402 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 386 transitions. [2023-08-27 12:53:22,403 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 12:53:22,403 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 386 transitions. [2023-08-27 12:53:22,403 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 128.66666666666666) internal successors, (386), 3 states have internal predecessors, (386), 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) [2023-08-27 12:53:22,404 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 311.0) internal successors, (1244), 4 states have internal predecessors, (1244), 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) [2023-08-27 12:53:22,404 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 311.0) internal successors, (1244), 4 states have internal predecessors, (1244), 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) [2023-08-27 12:53:22,404 INFO L175 Difference]: Start difference. First operand has 51 places, 26 transitions, 78 flow. Second operand 3 states and 386 transitions. [2023-08-27 12:53:22,404 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 24 transitions, 122 flow [2023-08-27 12:53:22,405 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 24 transitions, 121 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 12:53:22,405 INFO L231 Difference]: Finished difference. Result has 50 places, 24 transitions, 75 flow [2023-08-27 12:53:22,405 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=311, PETRI_DIFFERENCE_MINUEND_FLOW=73, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=75, PETRI_PLACES=50, PETRI_TRANSITIONS=24} [2023-08-27 12:53:22,406 INFO L281 CegarLoopForPetriNet]: 98 programPoint places, -48 predicate places. [2023-08-27 12:53:22,406 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 24 transitions, 75 flow [2023-08-27 12:53:22,406 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 121.66666666666667) internal successors, (365), 3 states have internal predecessors, (365), 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) [2023-08-27 12:53:22,406 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 12:53:22,406 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-27 12:53:22,406 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-08-27 12:53:22,406 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 145 more)] === [2023-08-27 12:53:22,407 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 12:53:22,407 INFO L85 PathProgramCache]: Analyzing trace with hash -2027105795, now seen corresponding path program 1 times [2023-08-27 12:53:22,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 12:53:22,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448738481] [2023-08-27 12:53:22,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 12:53:22,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 12:53:22,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 12:53:22,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 12:53:22,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 12:53:22,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448738481] [2023-08-27 12:53:22,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448738481] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 12:53:22,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 12:53:22,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 12:53:22,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256265219] [2023-08-27 12:53:22,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 12:53:22,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 12:53:22,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 12:53:22,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 12:53:22,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 12:53:22,460 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 311 [2023-08-27 12:53:22,460 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 24 transitions, 75 flow. Second operand has 3 states, 3 states have (on average 121.66666666666667) internal successors, (365), 3 states have internal predecessors, (365), 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) [2023-08-27 12:53:22,460 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 12:53:22,460 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 311 [2023-08-27 12:53:22,460 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 12:53:23,005 INFO L124 PetriNetUnfolderBase]: 277/464 cut-off events. [2023-08-27 12:53:23,006 INFO L125 PetriNetUnfolderBase]: For 20/20 co-relation queries the response was YES. [2023-08-27 12:53:23,006 INFO L83 FinitePrefix]: Finished finitePrefix Result has 965 conditions, 464 events. 277/464 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 1761 event pairs, 277 based on Foata normal form. 0/266 useless extension candidates. Maximal degree in co-relation 961. Up to 464 conditions per place. [2023-08-27 12:53:23,008 INFO L140 encePairwiseOnDemand]: 308/311 looper letters, 21 selfloop transitions, 1 changer transitions 0/22 dead transitions. [2023-08-27 12:53:23,008 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 22 transitions, 115 flow [2023-08-27 12:53:23,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 12:53:23,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 12:53:23,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 384 transitions. [2023-08-27 12:53:23,009 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4115755627009646 [2023-08-27 12:53:23,009 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 384 transitions. [2023-08-27 12:53:23,009 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 384 transitions. [2023-08-27 12:53:23,010 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 12:53:23,010 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 384 transitions. [2023-08-27 12:53:23,010 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 128.0) internal successors, (384), 3 states have internal predecessors, (384), 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) [2023-08-27 12:53:23,011 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 311.0) internal successors, (1244), 4 states have internal predecessors, (1244), 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) [2023-08-27 12:53:23,012 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 311.0) internal successors, (1244), 4 states have internal predecessors, (1244), 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) [2023-08-27 12:53:23,012 INFO L175 Difference]: Start difference. First operand has 50 places, 24 transitions, 75 flow. Second operand 3 states and 384 transitions. [2023-08-27 12:53:23,012 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 22 transitions, 115 flow [2023-08-27 12:53:23,012 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 22 transitions, 114 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 12:53:23,013 INFO L231 Difference]: Finished difference. Result has 49 places, 22 transitions, 72 flow [2023-08-27 12:53:23,013 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=311, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=72, PETRI_PLACES=49, PETRI_TRANSITIONS=22} [2023-08-27 12:53:23,013 INFO L281 CegarLoopForPetriNet]: 98 programPoint places, -49 predicate places. [2023-08-27 12:53:23,013 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 22 transitions, 72 flow [2023-08-27 12:53:23,013 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 121.66666666666667) internal successors, (365), 3 states have internal predecessors, (365), 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) [2023-08-27 12:53:23,013 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 12:53:23,013 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-27 12:53:23,014 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-08-27 12:53:23,014 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 145 more)] === [2023-08-27 12:53:23,014 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 12:53:23,014 INFO L85 PathProgramCache]: Analyzing trace with hash -2027105794, now seen corresponding path program 1 times [2023-08-27 12:53:23,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 12:53:23,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184517388] [2023-08-27 12:53:23,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 12:53:23,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 12:53:23,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 12:53:23,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 12:53:23,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 12:53:23,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184517388] [2023-08-27 12:53:23,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184517388] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 12:53:23,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 12:53:23,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 12:53:23,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996297053] [2023-08-27 12:53:23,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 12:53:23,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 12:53:23,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 12:53:23,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 12:53:23,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 12:53:23,065 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 311 [2023-08-27 12:53:23,065 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 22 transitions, 72 flow. Second operand has 3 states, 3 states have (on average 121.66666666666667) internal successors, (365), 3 states have internal predecessors, (365), 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) [2023-08-27 12:53:23,065 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 12:53:23,065 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 311 [2023-08-27 12:53:23,065 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 12:53:23,574 INFO L124 PetriNetUnfolderBase]: 173/300 cut-off events. [2023-08-27 12:53:23,574 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2023-08-27 12:53:23,574 INFO L83 FinitePrefix]: Finished finitePrefix Result has 636 conditions, 300 events. 173/300 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 1005 event pairs, 173 based on Foata normal form. 0/192 useless extension candidates. Maximal degree in co-relation 632. Up to 300 conditions per place. [2023-08-27 12:53:23,575 INFO L140 encePairwiseOnDemand]: 308/311 looper letters, 19 selfloop transitions, 1 changer transitions 0/20 dead transitions. [2023-08-27 12:53:23,575 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 20 transitions, 108 flow [2023-08-27 12:53:23,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 12:53:23,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 12:53:23,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 382 transitions. [2023-08-27 12:53:23,576 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40943193997856375 [2023-08-27 12:53:23,576 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 382 transitions. [2023-08-27 12:53:23,576 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 382 transitions. [2023-08-27 12:53:23,576 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 12:53:23,576 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 382 transitions. [2023-08-27 12:53:23,577 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 127.33333333333333) internal successors, (382), 3 states have internal predecessors, (382), 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) [2023-08-27 12:53:23,578 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 311.0) internal successors, (1244), 4 states have internal predecessors, (1244), 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) [2023-08-27 12:53:23,578 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 311.0) internal successors, (1244), 4 states have internal predecessors, (1244), 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) [2023-08-27 12:53:23,578 INFO L175 Difference]: Start difference. First operand has 49 places, 22 transitions, 72 flow. Second operand 3 states and 382 transitions. [2023-08-27 12:53:23,578 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 20 transitions, 108 flow [2023-08-27 12:53:23,578 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 20 transitions, 107 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 12:53:23,579 INFO L231 Difference]: Finished difference. Result has 48 places, 20 transitions, 69 flow [2023-08-27 12:53:23,579 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=311, PETRI_DIFFERENCE_MINUEND_FLOW=67, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=69, PETRI_PLACES=48, PETRI_TRANSITIONS=20} [2023-08-27 12:53:23,579 INFO L281 CegarLoopForPetriNet]: 98 programPoint places, -50 predicate places. [2023-08-27 12:53:23,579 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 20 transitions, 69 flow [2023-08-27 12:53:23,580 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 121.66666666666667) internal successors, (365), 3 states have internal predecessors, (365), 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) [2023-08-27 12:53:23,580 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 12:53:23,580 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-27 12:53:23,580 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-08-27 12:53:23,580 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting thread2Err13ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 145 more)] === [2023-08-27 12:53:23,580 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 12:53:23,580 INFO L85 PathProgramCache]: Analyzing trace with hash -2027105789, now seen corresponding path program 1 times [2023-08-27 12:53:23,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 12:53:23,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177249500] [2023-08-27 12:53:23,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 12:53:23,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 12:53:23,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 12:53:23,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 12:53:23,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 12:53:23,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177249500] [2023-08-27 12:53:23,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177249500] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 12:53:23,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 12:53:23,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 12:53:23,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865352941] [2023-08-27 12:53:23,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 12:53:23,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 12:53:23,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 12:53:23,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 12:53:23,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 12:53:23,671 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 311 [2023-08-27 12:53:23,671 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 20 transitions, 69 flow. Second operand has 3 states, 3 states have (on average 121.66666666666667) internal successors, (365), 3 states have internal predecessors, (365), 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) [2023-08-27 12:53:23,671 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 12:53:23,671 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 311 [2023-08-27 12:53:23,671 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 12:53:24,015 INFO L124 PetriNetUnfolderBase]: 93/172 cut-off events. [2023-08-27 12:53:24,015 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-08-27 12:53:24,016 INFO L83 FinitePrefix]: Finished finitePrefix Result has 379 conditions, 172 events. 93/172 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 471 event pairs, 93 based on Foata normal form. 0/130 useless extension candidates. Maximal degree in co-relation 375. Up to 172 conditions per place. [2023-08-27 12:53:24,016 INFO L140 encePairwiseOnDemand]: 308/311 looper letters, 17 selfloop transitions, 1 changer transitions 0/18 dead transitions. [2023-08-27 12:53:24,016 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 18 transitions, 101 flow [2023-08-27 12:53:24,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 12:53:24,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 12:53:24,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 380 transitions. [2023-08-27 12:53:24,018 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40728831725616294 [2023-08-27 12:53:24,018 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 380 transitions. [2023-08-27 12:53:24,018 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 380 transitions. [2023-08-27 12:53:24,018 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 12:53:24,018 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 380 transitions. [2023-08-27 12:53:24,019 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 126.66666666666667) internal successors, (380), 3 states have internal predecessors, (380), 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) [2023-08-27 12:53:24,020 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 311.0) internal successors, (1244), 4 states have internal predecessors, (1244), 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) [2023-08-27 12:53:24,021 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 311.0) internal successors, (1244), 4 states have internal predecessors, (1244), 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) [2023-08-27 12:53:24,021 INFO L175 Difference]: Start difference. First operand has 48 places, 20 transitions, 69 flow. Second operand 3 states and 380 transitions. [2023-08-27 12:53:24,021 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 18 transitions, 101 flow [2023-08-27 12:53:24,021 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 18 transitions, 100 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 12:53:24,022 INFO L231 Difference]: Finished difference. Result has 47 places, 18 transitions, 66 flow [2023-08-27 12:53:24,022 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=311, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=66, PETRI_PLACES=47, PETRI_TRANSITIONS=18} [2023-08-27 12:53:24,022 INFO L281 CegarLoopForPetriNet]: 98 programPoint places, -51 predicate places. [2023-08-27 12:53:24,022 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 18 transitions, 66 flow [2023-08-27 12:53:24,022 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 121.66666666666667) internal successors, (365), 3 states have internal predecessors, (365), 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) [2023-08-27 12:53:24,023 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 12:53:24,023 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-27 12:53:24,023 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-08-27 12:53:24,023 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting thread2Err14ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 145 more)] === [2023-08-27 12:53:24,023 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 12:53:24,023 INFO L85 PathProgramCache]: Analyzing trace with hash -2027105788, now seen corresponding path program 1 times [2023-08-27 12:53:24,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 12:53:24,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738109403] [2023-08-27 12:53:24,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 12:53:24,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 12:53:24,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 12:53:24,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 12:53:24,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 12:53:24,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738109403] [2023-08-27 12:53:24,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738109403] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 12:53:24,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 12:53:24,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 12:53:24,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432937509] [2023-08-27 12:53:24,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 12:53:24,158 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 12:53:24,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 12:53:24,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 12:53:24,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 12:53:24,159 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 311 [2023-08-27 12:53:24,159 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 18 transitions, 66 flow. Second operand has 3 states, 3 states have (on average 121.66666666666667) internal successors, (365), 3 states have internal predecessors, (365), 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) [2023-08-27 12:53:24,159 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 12:53:24,160 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 311 [2023-08-27 12:53:24,160 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 12:53:24,372 INFO L124 PetriNetUnfolderBase]: 37/80 cut-off events. [2023-08-27 12:53:24,372 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-27 12:53:24,373 INFO L83 FinitePrefix]: Finished finitePrefix Result has 194 conditions, 80 events. 37/80 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 152 event pairs, 37 based on Foata normal form. 0/80 useless extension candidates. Maximal degree in co-relation 190. Up to 80 conditions per place. [2023-08-27 12:53:24,373 INFO L140 encePairwiseOnDemand]: 308/311 looper letters, 15 selfloop transitions, 1 changer transitions 0/16 dead transitions. [2023-08-27 12:53:24,373 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 16 transitions, 94 flow [2023-08-27 12:53:24,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 12:53:24,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 12:53:24,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 378 transitions. [2023-08-27 12:53:24,374 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40514469453376206 [2023-08-27 12:53:24,374 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 378 transitions. [2023-08-27 12:53:24,374 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 378 transitions. [2023-08-27 12:53:24,375 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 12:53:24,375 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 378 transitions. [2023-08-27 12:53:24,375 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 126.0) internal successors, (378), 3 states have internal predecessors, (378), 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) [2023-08-27 12:53:24,376 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 311.0) internal successors, (1244), 4 states have internal predecessors, (1244), 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) [2023-08-27 12:53:24,377 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 311.0) internal successors, (1244), 4 states have internal predecessors, (1244), 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) [2023-08-27 12:53:24,377 INFO L175 Difference]: Start difference. First operand has 47 places, 18 transitions, 66 flow. Second operand 3 states and 378 transitions. [2023-08-27 12:53:24,377 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 16 transitions, 94 flow [2023-08-27 12:53:24,377 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 16 transitions, 93 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 12:53:24,377 INFO L231 Difference]: Finished difference. Result has 46 places, 16 transitions, 63 flow [2023-08-27 12:53:24,377 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=311, PETRI_DIFFERENCE_MINUEND_FLOW=61, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=63, PETRI_PLACES=46, PETRI_TRANSITIONS=16} [2023-08-27 12:53:24,378 INFO L281 CegarLoopForPetriNet]: 98 programPoint places, -52 predicate places. [2023-08-27 12:53:24,378 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 16 transitions, 63 flow [2023-08-27 12:53:24,378 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 121.66666666666667) internal successors, (365), 3 states have internal predecessors, (365), 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) [2023-08-27 12:53:24,378 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 12:53:24,378 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 12:53:24,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-08-27 12:53:24,378 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 145 more)] === [2023-08-27 12:53:24,379 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 12:53:24,379 INFO L85 PathProgramCache]: Analyzing trace with hash 2009783590, now seen corresponding path program 1 times [2023-08-27 12:53:24,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 12:53:24,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704442414] [2023-08-27 12:53:24,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 12:53:24,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 12:53:24,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 12:53:33,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 12:53:33,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 12:53:33,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704442414] [2023-08-27 12:53:33,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1704442414] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 12:53:33,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 12:53:33,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-27 12:53:33,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542721103] [2023-08-27 12:53:33,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 12:53:33,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-27 12:53:33,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 12:53:33,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-27 12:53:33,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-27 12:53:33,510 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 311 [2023-08-27 12:53:33,511 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 16 transitions, 63 flow. Second operand has 5 states, 5 states have (on average 97.2) internal successors, (486), 5 states have internal predecessors, (486), 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) [2023-08-27 12:53:33,511 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 12:53:33,511 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 311 [2023-08-27 12:53:33,511 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 12:53:33,932 INFO L124 PetriNetUnfolderBase]: 40/106 cut-off events. [2023-08-27 12:53:33,933 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-08-27 12:53:33,933 INFO L83 FinitePrefix]: Finished finitePrefix Result has 248 conditions, 106 events. 40/106 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 345 event pairs, 1 based on Foata normal form. 1/107 useless extension candidates. Maximal degree in co-relation 244. Up to 48 conditions per place. [2023-08-27 12:53:33,933 INFO L140 encePairwiseOnDemand]: 306/311 looper letters, 30 selfloop transitions, 5 changer transitions 9/44 dead transitions. [2023-08-27 12:53:33,933 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 44 transitions, 217 flow [2023-08-27 12:53:33,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-27 12:53:33,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-27 12:53:33,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 609 transitions. [2023-08-27 12:53:33,935 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.32636655948553056 [2023-08-27 12:53:33,935 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 609 transitions. [2023-08-27 12:53:33,935 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 609 transitions. [2023-08-27 12:53:33,935 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 12:53:33,935 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 609 transitions. [2023-08-27 12:53:33,936 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 101.5) internal successors, (609), 6 states have internal predecessors, (609), 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) [2023-08-27 12:53:33,938 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 311.0) internal successors, (2177), 7 states have internal predecessors, (2177), 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) [2023-08-27 12:53:33,938 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 311.0) internal successors, (2177), 7 states have internal predecessors, (2177), 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) [2023-08-27 12:53:33,939 INFO L175 Difference]: Start difference. First operand has 46 places, 16 transitions, 63 flow. Second operand 6 states and 609 transitions. [2023-08-27 12:53:33,939 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 44 transitions, 217 flow [2023-08-27 12:53:33,939 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 44 transitions, 216 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 12:53:33,940 INFO L231 Difference]: Finished difference. Result has 52 places, 18 transitions, 81 flow [2023-08-27 12:53:33,940 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=311, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=81, PETRI_PLACES=52, PETRI_TRANSITIONS=18} [2023-08-27 12:53:33,941 INFO L281 CegarLoopForPetriNet]: 98 programPoint places, -46 predicate places. [2023-08-27 12:53:33,941 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 18 transitions, 81 flow [2023-08-27 12:53:33,941 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 97.2) internal successors, (486), 5 states have internal predecessors, (486), 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) [2023-08-27 12:53:33,941 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 12:53:33,941 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 12:53:33,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-08-27 12:53:33,941 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 145 more)] === [2023-08-27 12:53:33,941 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 12:53:33,942 INFO L85 PathProgramCache]: Analyzing trace with hash 1138749694, now seen corresponding path program 2 times [2023-08-27 12:53:33,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 12:53:33,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238964623] [2023-08-27 12:53:33,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 12:53:33,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 12:53:34,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 12:53:42,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 12:53:42,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 12:53:42,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238964623] [2023-08-27 12:53:42,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238964623] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 12:53:42,576 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 12:53:42,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-27 12:53:42,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277965480] [2023-08-27 12:53:42,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 12:53:42,577 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-27 12:53:42,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 12:53:42,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-27 12:53:42,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-27 12:53:42,578 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 311 [2023-08-27 12:53:42,578 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 18 transitions, 81 flow. Second operand has 5 states, 5 states have (on average 97.2) internal successors, (486), 5 states have internal predecessors, (486), 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) [2023-08-27 12:53:42,578 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 12:53:42,578 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 311 [2023-08-27 12:53:42,578 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 12:53:42,972 INFO L124 PetriNetUnfolderBase]: 36/114 cut-off events. [2023-08-27 12:53:42,972 INFO L125 PetriNetUnfolderBase]: For 55/55 co-relation queries the response was YES. [2023-08-27 12:53:42,973 INFO L83 FinitePrefix]: Finished finitePrefix Result has 318 conditions, 114 events. 36/114 cut-off events. For 55/55 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 404 event pairs, 2 based on Foata normal form. 1/115 useless extension candidates. Maximal degree in co-relation 312. Up to 45 conditions per place. [2023-08-27 12:53:42,973 INFO L140 encePairwiseOnDemand]: 306/311 looper letters, 32 selfloop transitions, 6 changer transitions 9/47 dead transitions. [2023-08-27 12:53:42,973 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 47 transitions, 259 flow [2023-08-27 12:53:42,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-27 12:53:42,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-27 12:53:42,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 610 transitions. [2023-08-27 12:53:42,975 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.32690246516613075 [2023-08-27 12:53:42,975 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 610 transitions. [2023-08-27 12:53:42,975 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 610 transitions. [2023-08-27 12:53:42,976 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 12:53:42,976 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 610 transitions. [2023-08-27 12:53:42,977 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 101.66666666666667) internal successors, (610), 6 states have internal predecessors, (610), 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) [2023-08-27 12:53:42,978 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 311.0) internal successors, (2177), 7 states have internal predecessors, (2177), 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) [2023-08-27 12:53:42,979 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 311.0) internal successors, (2177), 7 states have internal predecessors, (2177), 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) [2023-08-27 12:53:42,979 INFO L175 Difference]: Start difference. First operand has 52 places, 18 transitions, 81 flow. Second operand 6 states and 610 transitions. [2023-08-27 12:53:42,979 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 47 transitions, 259 flow [2023-08-27 12:53:42,980 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 47 transitions, 255 flow, removed 2 selfloop flow, removed 1 redundant places. [2023-08-27 12:53:42,980 INFO L231 Difference]: Finished difference. Result has 59 places, 21 transitions, 119 flow [2023-08-27 12:53:42,980 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=311, PETRI_DIFFERENCE_MINUEND_FLOW=79, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=119, PETRI_PLACES=59, PETRI_TRANSITIONS=21} [2023-08-27 12:53:42,981 INFO L281 CegarLoopForPetriNet]: 98 programPoint places, -39 predicate places. [2023-08-27 12:53:42,981 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 21 transitions, 119 flow [2023-08-27 12:53:42,981 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 97.2) internal successors, (486), 5 states have internal predecessors, (486), 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) [2023-08-27 12:53:42,981 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 12:53:42,981 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 12:53:42,981 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-08-27 12:53:42,981 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 145 more)] === [2023-08-27 12:53:42,982 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 12:53:42,982 INFO L85 PathProgramCache]: Analyzing trace with hash 490585554, now seen corresponding path program 3 times [2023-08-27 12:53:42,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 12:53:42,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984510649] [2023-08-27 12:53:42,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 12:53:42,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 12:53:43,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 12:53:49,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 12:53:49,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 12:53:49,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984510649] [2023-08-27 12:53:49,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984510649] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 12:53:49,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 12:53:49,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-27 12:53:49,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026653849] [2023-08-27 12:53:49,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 12:53:49,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-27 12:53:49,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 12:53:49,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-27 12:53:49,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-27 12:53:49,586 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 311 [2023-08-27 12:53:49,586 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 21 transitions, 119 flow. Second operand has 5 states, 5 states have (on average 97.2) internal successors, (486), 5 states have internal predecessors, (486), 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) [2023-08-27 12:53:49,586 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 12:53:49,586 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 311 [2023-08-27 12:53:49,586 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 12:53:49,971 INFO L124 PetriNetUnfolderBase]: 32/98 cut-off events. [2023-08-27 12:53:49,971 INFO L125 PetriNetUnfolderBase]: For 142/142 co-relation queries the response was YES. [2023-08-27 12:53:49,971 INFO L83 FinitePrefix]: Finished finitePrefix Result has 340 conditions, 98 events. 32/98 cut-off events. For 142/142 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 302 event pairs, 2 based on Foata normal form. 1/99 useless extension candidates. Maximal degree in co-relation 330. Up to 46 conditions per place. [2023-08-27 12:53:49,972 INFO L140 encePairwiseOnDemand]: 306/311 looper letters, 27 selfloop transitions, 6 changer transitions 11/44 dead transitions. [2023-08-27 12:53:49,972 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 44 transitions, 274 flow [2023-08-27 12:53:49,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-27 12:53:49,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-27 12:53:49,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 608 transitions. [2023-08-27 12:53:49,973 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3258306538049303 [2023-08-27 12:53:49,974 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 608 transitions. [2023-08-27 12:53:49,974 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 608 transitions. [2023-08-27 12:53:49,974 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 12:53:49,974 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 608 transitions. [2023-08-27 12:53:49,975 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 101.33333333333333) internal successors, (608), 6 states have internal predecessors, (608), 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) [2023-08-27 12:53:49,977 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 311.0) internal successors, (2177), 7 states have internal predecessors, (2177), 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) [2023-08-27 12:53:49,977 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 311.0) internal successors, (2177), 7 states have internal predecessors, (2177), 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) [2023-08-27 12:53:49,977 INFO L175 Difference]: Start difference. First operand has 59 places, 21 transitions, 119 flow. Second operand 6 states and 608 transitions. [2023-08-27 12:53:49,977 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 44 transitions, 274 flow [2023-08-27 12:53:49,978 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 44 transitions, 263 flow, removed 5 selfloop flow, removed 2 redundant places. [2023-08-27 12:53:49,979 INFO L231 Difference]: Finished difference. Result has 63 places, 20 transitions, 126 flow [2023-08-27 12:53:49,979 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=311, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=126, PETRI_PLACES=63, PETRI_TRANSITIONS=20} [2023-08-27 12:53:49,979 INFO L281 CegarLoopForPetriNet]: 98 programPoint places, -35 predicate places. [2023-08-27 12:53:49,979 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 20 transitions, 126 flow [2023-08-27 12:53:49,980 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 97.2) internal successors, (486), 5 states have internal predecessors, (486), 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) [2023-08-27 12:53:49,980 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 12:53:49,980 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 12:53:49,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-08-27 12:53:49,980 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 145 more)] === [2023-08-27 12:53:49,980 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 12:53:49,980 INFO L85 PathProgramCache]: Analyzing trace with hash -1411822290, now seen corresponding path program 4 times [2023-08-27 12:53:49,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 12:53:49,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183439476] [2023-08-27 12:53:49,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 12:53:49,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 12:53:50,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 12:53:56,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 12:53:56,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 12:53:56,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183439476] [2023-08-27 12:53:56,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183439476] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 12:53:56,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 12:53:56,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-27 12:53:56,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726161549] [2023-08-27 12:53:56,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 12:53:56,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-27 12:53:56,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 12:53:56,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-27 12:53:56,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-27 12:53:56,304 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 311 [2023-08-27 12:53:56,304 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 20 transitions, 126 flow. Second operand has 5 states, 5 states have (on average 97.2) internal successors, (486), 5 states have internal predecessors, (486), 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) [2023-08-27 12:53:56,304 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 12:53:56,304 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 311 [2023-08-27 12:53:56,304 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 12:53:56,577 INFO L124 PetriNetUnfolderBase]: 16/54 cut-off events. [2023-08-27 12:53:56,577 INFO L125 PetriNetUnfolderBase]: For 110/110 co-relation queries the response was YES. [2023-08-27 12:53:56,578 INFO L83 FinitePrefix]: Finished finitePrefix Result has 228 conditions, 54 events. 16/54 cut-off events. For 110/110 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 111 event pairs, 0 based on Foata normal form. 1/55 useless extension candidates. Maximal degree in co-relation 217. Up to 20 conditions per place. [2023-08-27 12:53:56,578 INFO L140 encePairwiseOnDemand]: 306/311 looper letters, 18 selfloop transitions, 5 changer transitions 10/33 dead transitions. [2023-08-27 12:53:56,578 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 33 transitions, 223 flow [2023-08-27 12:53:56,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-27 12:53:56,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-27 12:53:56,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 597 transitions. [2023-08-27 12:53:56,579 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.319935691318328 [2023-08-27 12:53:56,580 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 597 transitions. [2023-08-27 12:53:56,580 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 597 transitions. [2023-08-27 12:53:56,580 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 12:53:56,580 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 597 transitions. [2023-08-27 12:53:56,581 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 99.5) internal successors, (597), 6 states have internal predecessors, (597), 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) [2023-08-27 12:53:56,582 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 311.0) internal successors, (2177), 7 states have internal predecessors, (2177), 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) [2023-08-27 12:53:56,582 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 311.0) internal successors, (2177), 7 states have internal predecessors, (2177), 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) [2023-08-27 12:53:56,582 INFO L175 Difference]: Start difference. First operand has 63 places, 20 transitions, 126 flow. Second operand 6 states and 597 transitions. [2023-08-27 12:53:56,582 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 33 transitions, 223 flow [2023-08-27 12:53:56,583 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 33 transitions, 202 flow, removed 3 selfloop flow, removed 6 redundant places. [2023-08-27 12:53:56,584 INFO L231 Difference]: Finished difference. Result has 61 places, 18 transitions, 102 flow [2023-08-27 12:53:56,584 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=311, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=102, PETRI_PLACES=61, PETRI_TRANSITIONS=18} [2023-08-27 12:53:56,584 INFO L281 CegarLoopForPetriNet]: 98 programPoint places, -37 predicate places. [2023-08-27 12:53:56,584 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 18 transitions, 102 flow [2023-08-27 12:53:56,584 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 97.2) internal successors, (486), 5 states have internal predecessors, (486), 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) [2023-08-27 12:53:56,585 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 12:53:56,585 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 12:53:56,585 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-08-27 12:53:56,585 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 145 more)] === [2023-08-27 12:53:56,585 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 12:53:56,585 INFO L85 PathProgramCache]: Analyzing trace with hash -2020224430, now seen corresponding path program 5 times [2023-08-27 12:53:56,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 12:53:56,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024832957] [2023-08-27 12:53:56,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 12:53:56,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 12:53:56,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 12:54:01,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 12:54:01,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 12:54:01,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024832957] [2023-08-27 12:54:01,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024832957] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 12:54:01,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 12:54:01,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-27 12:54:01,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957174593] [2023-08-27 12:54:01,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 12:54:01,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-27 12:54:01,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 12:54:01,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-27 12:54:01,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-27 12:54:01,644 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 311 [2023-08-27 12:54:01,644 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 18 transitions, 102 flow. Second operand has 5 states, 5 states have (on average 97.2) internal successors, (486), 5 states have internal predecessors, (486), 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) [2023-08-27 12:54:01,645 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 12:54:01,645 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 311 [2023-08-27 12:54:01,645 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 12:54:01,876 INFO L124 PetriNetUnfolderBase]: 8/40 cut-off events. [2023-08-27 12:54:01,876 INFO L125 PetriNetUnfolderBase]: For 37/37 co-relation queries the response was YES. [2023-08-27 12:54:01,876 INFO L83 FinitePrefix]: Finished finitePrefix Result has 167 conditions, 40 events. 8/40 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 54 event pairs, 0 based on Foata normal form. 1/41 useless extension candidates. Maximal degree in co-relation 157. Up to 19 conditions per place. [2023-08-27 12:54:01,876 INFO L140 encePairwiseOnDemand]: 306/311 looper letters, 15 selfloop transitions, 3 changer transitions 12/30 dead transitions. [2023-08-27 12:54:01,876 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 30 transitions, 198 flow [2023-08-27 12:54:01,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-27 12:54:01,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-27 12:54:01,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 595 transitions. [2023-08-27 12:54:01,878 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.31886387995712756 [2023-08-27 12:54:01,878 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 595 transitions. [2023-08-27 12:54:01,878 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 595 transitions. [2023-08-27 12:54:01,878 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 12:54:01,879 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 595 transitions. [2023-08-27 12:54:01,879 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 99.16666666666667) internal successors, (595), 6 states have internal predecessors, (595), 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) [2023-08-27 12:54:01,881 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 311.0) internal successors, (2177), 7 states have internal predecessors, (2177), 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) [2023-08-27 12:54:01,882 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 311.0) internal successors, (2177), 7 states have internal predecessors, (2177), 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) [2023-08-27 12:54:01,882 INFO L175 Difference]: Start difference. First operand has 61 places, 18 transitions, 102 flow. Second operand 6 states and 595 transitions. [2023-08-27 12:54:01,882 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 30 transitions, 198 flow [2023-08-27 12:54:01,882 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 30 transitions, 168 flow, removed 3 selfloop flow, removed 8 redundant places. [2023-08-27 12:54:01,883 INFO L231 Difference]: Finished difference. Result has 58 places, 16 transitions, 80 flow [2023-08-27 12:54:01,883 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=311, PETRI_DIFFERENCE_MINUEND_FLOW=77, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=80, PETRI_PLACES=58, PETRI_TRANSITIONS=16} [2023-08-27 12:54:01,883 INFO L281 CegarLoopForPetriNet]: 98 programPoint places, -40 predicate places. [2023-08-27 12:54:01,883 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 16 transitions, 80 flow [2023-08-27 12:54:01,884 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 97.2) internal successors, (486), 5 states have internal predecessors, (486), 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) [2023-08-27 12:54:01,884 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 12:54:01,884 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 12:54:01,884 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-08-27 12:54:01,884 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 145 more)] === [2023-08-27 12:54:01,884 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 12:54:01,884 INFO L85 PathProgramCache]: Analyzing trace with hash -11076358, now seen corresponding path program 6 times [2023-08-27 12:54:01,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 12:54:01,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007537303] [2023-08-27 12:54:01,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 12:54:01,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 12:54:02,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 12:54:08,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 12:54:08,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 12:54:08,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007537303] [2023-08-27 12:54:08,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007537303] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 12:54:08,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 12:54:08,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-27 12:54:08,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276504900] [2023-08-27 12:54:08,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 12:54:08,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-27 12:54:08,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 12:54:08,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-27 12:54:08,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-27 12:54:08,654 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 311 [2023-08-27 12:54:08,654 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 16 transitions, 80 flow. Second operand has 5 states, 5 states have (on average 97.2) internal successors, (486), 5 states have internal predecessors, (486), 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) [2023-08-27 12:54:08,654 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 12:54:08,654 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 311 [2023-08-27 12:54:08,654 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 12:54:08,852 INFO L124 PetriNetUnfolderBase]: 3/21 cut-off events. [2023-08-27 12:54:08,852 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-08-27 12:54:08,852 INFO L83 FinitePrefix]: Finished finitePrefix Result has 94 conditions, 21 events. 3/21 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 9 event pairs, 0 based on Foata normal form. 1/22 useless extension candidates. Maximal degree in co-relation 86. Up to 8 conditions per place. [2023-08-27 12:54:08,853 INFO L140 encePairwiseOnDemand]: 306/311 looper letters, 0 selfloop transitions, 0 changer transitions 18/18 dead transitions. [2023-08-27 12:54:08,853 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 18 transitions, 118 flow [2023-08-27 12:54:08,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-27 12:54:08,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-27 12:54:08,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 583 transitions. [2023-08-27 12:54:08,854 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.312433011789925 [2023-08-27 12:54:08,854 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 583 transitions. [2023-08-27 12:54:08,854 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 583 transitions. [2023-08-27 12:54:08,854 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 12:54:08,855 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 583 transitions. [2023-08-27 12:54:08,855 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 97.16666666666667) internal successors, (583), 6 states have internal predecessors, (583), 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) [2023-08-27 12:54:08,857 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 311.0) internal successors, (2177), 7 states have internal predecessors, (2177), 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) [2023-08-27 12:54:08,857 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 311.0) internal successors, (2177), 7 states have internal predecessors, (2177), 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) [2023-08-27 12:54:08,857 INFO L175 Difference]: Start difference. First operand has 58 places, 16 transitions, 80 flow. Second operand 6 states and 583 transitions. [2023-08-27 12:54:08,857 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 18 transitions, 118 flow [2023-08-27 12:54:08,857 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 18 transitions, 106 flow, removed 1 selfloop flow, removed 6 redundant places. [2023-08-27 12:54:08,858 INFO L231 Difference]: Finished difference. Result has 54 places, 0 transitions, 0 flow [2023-08-27 12:54:08,858 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=311, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=54, PETRI_TRANSITIONS=0} [2023-08-27 12:54:08,858 INFO L281 CegarLoopForPetriNet]: 98 programPoint places, -44 predicate places. [2023-08-27 12:54:08,858 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 0 transitions, 0 flow [2023-08-27 12:54:08,858 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 97.2) internal successors, (486), 5 states have internal predecessors, (486), 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) [2023-08-27 12:54:08,861 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (147 of 148 remaining) [2023-08-27 12:54:08,861 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (146 of 148 remaining) [2023-08-27 12:54:08,861 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (145 of 148 remaining) [2023-08-27 12:54:08,861 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (144 of 148 remaining) [2023-08-27 12:54:08,861 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (143 of 148 remaining) [2023-08-27 12:54:08,861 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (142 of 148 remaining) [2023-08-27 12:54:08,861 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (141 of 148 remaining) [2023-08-27 12:54:08,862 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (140 of 148 remaining) [2023-08-27 12:54:08,862 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (139 of 148 remaining) [2023-08-27 12:54:08,862 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (138 of 148 remaining) [2023-08-27 12:54:08,862 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (137 of 148 remaining) [2023-08-27 12:54:08,862 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (136 of 148 remaining) [2023-08-27 12:54:08,862 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW (135 of 148 remaining) [2023-08-27 12:54:08,862 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (134 of 148 remaining) [2023-08-27 12:54:08,862 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err14ASSERT_VIOLATIONINTEGER_OVERFLOW (133 of 148 remaining) [2023-08-27 12:54:08,862 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err15ASSERT_VIOLATIONINTEGER_OVERFLOW (132 of 148 remaining) [2023-08-27 12:54:08,862 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err16ASSERT_VIOLATIONINTEGER_OVERFLOW (131 of 148 remaining) [2023-08-27 12:54:08,862 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW (130 of 148 remaining) [2023-08-27 12:54:08,863 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err18ASSERT_VIOLATIONINTEGER_OVERFLOW (129 of 148 remaining) [2023-08-27 12:54:08,863 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err19ASSERT_VIOLATIONINTEGER_OVERFLOW (128 of 148 remaining) [2023-08-27 12:54:08,863 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err20ASSERT_VIOLATIONINTEGER_OVERFLOW (127 of 148 remaining) [2023-08-27 12:54:08,863 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err21ASSERT_VIOLATIONINTEGER_OVERFLOW (126 of 148 remaining) [2023-08-27 12:54:08,863 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err22ASSERT_VIOLATIONINTEGER_OVERFLOW (125 of 148 remaining) [2023-08-27 12:54:08,863 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err23ASSERT_VIOLATIONINTEGER_OVERFLOW (124 of 148 remaining) [2023-08-27 12:54:08,863 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (123 of 148 remaining) [2023-08-27 12:54:08,863 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (122 of 148 remaining) [2023-08-27 12:54:08,863 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (121 of 148 remaining) [2023-08-27 12:54:08,863 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (120 of 148 remaining) [2023-08-27 12:54:08,864 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (119 of 148 remaining) [2023-08-27 12:54:08,864 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (118 of 148 remaining) [2023-08-27 12:54:08,864 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (117 of 148 remaining) [2023-08-27 12:54:08,864 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (116 of 148 remaining) [2023-08-27 12:54:08,864 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (115 of 148 remaining) [2023-08-27 12:54:08,864 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (114 of 148 remaining) [2023-08-27 12:54:08,864 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (113 of 148 remaining) [2023-08-27 12:54:08,864 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (112 of 148 remaining) [2023-08-27 12:54:08,864 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err12ASSERT_VIOLATIONINTEGER_OVERFLOW (111 of 148 remaining) [2023-08-27 12:54:08,864 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (110 of 148 remaining) [2023-08-27 12:54:08,865 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err14ASSERT_VIOLATIONINTEGER_OVERFLOW (109 of 148 remaining) [2023-08-27 12:54:08,865 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err15ASSERT_VIOLATIONINTEGER_OVERFLOW (108 of 148 remaining) [2023-08-27 12:54:08,865 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err16ASSERT_VIOLATIONINTEGER_OVERFLOW (107 of 148 remaining) [2023-08-27 12:54:08,865 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err17ASSERT_VIOLATIONINTEGER_OVERFLOW (106 of 148 remaining) [2023-08-27 12:54:08,865 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err18ASSERT_VIOLATIONINTEGER_OVERFLOW (105 of 148 remaining) [2023-08-27 12:54:08,865 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err19ASSERT_VIOLATIONINTEGER_OVERFLOW (104 of 148 remaining) [2023-08-27 12:54:08,865 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err20ASSERT_VIOLATIONINTEGER_OVERFLOW (103 of 148 remaining) [2023-08-27 12:54:08,865 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err21ASSERT_VIOLATIONINTEGER_OVERFLOW (102 of 148 remaining) [2023-08-27 12:54:08,865 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err22ASSERT_VIOLATIONINTEGER_OVERFLOW (101 of 148 remaining) [2023-08-27 12:54:08,865 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err23ASSERT_VIOLATIONINTEGER_OVERFLOW (100 of 148 remaining) [2023-08-27 12:54:08,865 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (99 of 148 remaining) [2023-08-27 12:54:08,866 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (98 of 148 remaining) [2023-08-27 12:54:08,866 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (97 of 148 remaining) [2023-08-27 12:54:08,866 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (96 of 148 remaining) [2023-08-27 12:54:08,866 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (95 of 148 remaining) [2023-08-27 12:54:08,866 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (94 of 148 remaining) [2023-08-27 12:54:08,866 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (93 of 148 remaining) [2023-08-27 12:54:08,866 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (92 of 148 remaining) [2023-08-27 12:54:08,866 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (91 of 148 remaining) [2023-08-27 12:54:08,866 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (90 of 148 remaining) [2023-08-27 12:54:08,866 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (89 of 148 remaining) [2023-08-27 12:54:08,866 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (88 of 148 remaining) [2023-08-27 12:54:08,867 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err12ASSERT_VIOLATIONINTEGER_OVERFLOW (87 of 148 remaining) [2023-08-27 12:54:08,867 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (86 of 148 remaining) [2023-08-27 12:54:08,867 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err14ASSERT_VIOLATIONINTEGER_OVERFLOW (85 of 148 remaining) [2023-08-27 12:54:08,867 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err15ASSERT_VIOLATIONINTEGER_OVERFLOW (84 of 148 remaining) [2023-08-27 12:54:08,867 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err16ASSERT_VIOLATIONINTEGER_OVERFLOW (83 of 148 remaining) [2023-08-27 12:54:08,867 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err17ASSERT_VIOLATIONINTEGER_OVERFLOW (82 of 148 remaining) [2023-08-27 12:54:08,867 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err18ASSERT_VIOLATIONINTEGER_OVERFLOW (81 of 148 remaining) [2023-08-27 12:54:08,867 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err19ASSERT_VIOLATIONINTEGER_OVERFLOW (80 of 148 remaining) [2023-08-27 12:54:08,867 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err20ASSERT_VIOLATIONINTEGER_OVERFLOW (79 of 148 remaining) [2023-08-27 12:54:08,867 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err21ASSERT_VIOLATIONINTEGER_OVERFLOW (78 of 148 remaining) [2023-08-27 12:54:08,867 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err22ASSERT_VIOLATIONINTEGER_OVERFLOW (77 of 148 remaining) [2023-08-27 12:54:08,868 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err23ASSERT_VIOLATIONINTEGER_OVERFLOW (76 of 148 remaining) [2023-08-27 12:54:08,868 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (75 of 148 remaining) [2023-08-27 12:54:08,868 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (74 of 148 remaining) [2023-08-27 12:54:08,868 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (73 of 148 remaining) [2023-08-27 12:54:08,868 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (72 of 148 remaining) [2023-08-27 12:54:08,868 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (71 of 148 remaining) [2023-08-27 12:54:08,868 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (70 of 148 remaining) [2023-08-27 12:54:08,868 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (69 of 148 remaining) [2023-08-27 12:54:08,868 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (68 of 148 remaining) [2023-08-27 12:54:08,868 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (67 of 148 remaining) [2023-08-27 12:54:08,869 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (66 of 148 remaining) [2023-08-27 12:54:08,869 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (65 of 148 remaining) [2023-08-27 12:54:08,869 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (64 of 148 remaining) [2023-08-27 12:54:08,869 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (63 of 148 remaining) [2023-08-27 12:54:08,869 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (62 of 148 remaining) [2023-08-27 12:54:08,869 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (61 of 148 remaining) [2023-08-27 12:54:08,869 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (60 of 148 remaining) [2023-08-27 12:54:08,869 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW (59 of 148 remaining) [2023-08-27 12:54:08,869 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (58 of 148 remaining) [2023-08-27 12:54:08,869 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err14ASSERT_VIOLATIONINTEGER_OVERFLOW (57 of 148 remaining) [2023-08-27 12:54:08,869 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err15ASSERT_VIOLATIONINTEGER_OVERFLOW (56 of 148 remaining) [2023-08-27 12:54:08,870 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err16ASSERT_VIOLATIONINTEGER_OVERFLOW (55 of 148 remaining) [2023-08-27 12:54:08,870 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW (54 of 148 remaining) [2023-08-27 12:54:08,870 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err18ASSERT_VIOLATIONINTEGER_OVERFLOW (53 of 148 remaining) [2023-08-27 12:54:08,870 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err19ASSERT_VIOLATIONINTEGER_OVERFLOW (52 of 148 remaining) [2023-08-27 12:54:08,870 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err20ASSERT_VIOLATIONINTEGER_OVERFLOW (51 of 148 remaining) [2023-08-27 12:54:08,870 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err21ASSERT_VIOLATIONINTEGER_OVERFLOW (50 of 148 remaining) [2023-08-27 12:54:08,870 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err22ASSERT_VIOLATIONINTEGER_OVERFLOW (49 of 148 remaining) [2023-08-27 12:54:08,870 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err23ASSERT_VIOLATIONINTEGER_OVERFLOW (48 of 148 remaining) [2023-08-27 12:54:08,870 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (47 of 148 remaining) [2023-08-27 12:54:08,871 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (46 of 148 remaining) [2023-08-27 12:54:08,871 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (45 of 148 remaining) [2023-08-27 12:54:08,871 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (44 of 148 remaining) [2023-08-27 12:54:08,871 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (43 of 148 remaining) [2023-08-27 12:54:08,871 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (42 of 148 remaining) [2023-08-27 12:54:08,871 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (41 of 148 remaining) [2023-08-27 12:54:08,871 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (40 of 148 remaining) [2023-08-27 12:54:08,871 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (39 of 148 remaining) [2023-08-27 12:54:08,871 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 148 remaining) [2023-08-27 12:54:08,872 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 148 remaining) [2023-08-27 12:54:08,872 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 148 remaining) [2023-08-27 12:54:08,872 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err12ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 148 remaining) [2023-08-27 12:54:08,872 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 148 remaining) [2023-08-27 12:54:08,872 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err14ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 148 remaining) [2023-08-27 12:54:08,872 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err15ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 148 remaining) [2023-08-27 12:54:08,872 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err16ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 148 remaining) [2023-08-27 12:54:08,872 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err17ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 148 remaining) [2023-08-27 12:54:08,872 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err18ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 148 remaining) [2023-08-27 12:54:08,873 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err19ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 148 remaining) [2023-08-27 12:54:08,873 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err20ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 148 remaining) [2023-08-27 12:54:08,873 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err21ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 148 remaining) [2023-08-27 12:54:08,873 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err22ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 148 remaining) [2023-08-27 12:54:08,873 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err23ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 148 remaining) [2023-08-27 12:54:08,873 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 148 remaining) [2023-08-27 12:54:08,873 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 148 remaining) [2023-08-27 12:54:08,873 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 148 remaining) [2023-08-27 12:54:08,873 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 148 remaining) [2023-08-27 12:54:08,873 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 148 remaining) [2023-08-27 12:54:08,874 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 148 remaining) [2023-08-27 12:54:08,874 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 148 remaining) [2023-08-27 12:54:08,874 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 148 remaining) [2023-08-27 12:54:08,874 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 148 remaining) [2023-08-27 12:54:08,874 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 148 remaining) [2023-08-27 12:54:08,874 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 148 remaining) [2023-08-27 12:54:08,874 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 148 remaining) [2023-08-27 12:54:08,874 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err12ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 148 remaining) [2023-08-27 12:54:08,874 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 148 remaining) [2023-08-27 12:54:08,875 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err14ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 148 remaining) [2023-08-27 12:54:08,875 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err15ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 148 remaining) [2023-08-27 12:54:08,875 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err16ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 148 remaining) [2023-08-27 12:54:08,875 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err17ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 148 remaining) [2023-08-27 12:54:08,875 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err18ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 148 remaining) [2023-08-27 12:54:08,875 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err19ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 148 remaining) [2023-08-27 12:54:08,875 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err20ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 148 remaining) [2023-08-27 12:54:08,875 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err21ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 148 remaining) [2023-08-27 12:54:08,875 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err22ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 148 remaining) [2023-08-27 12:54:08,875 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err23ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 148 remaining) [2023-08-27 12:54:08,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-08-27 12:54:08,876 INFO L445 BasicCegarLoop]: Path program histogram: [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 12:54:08,881 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-27 12:54:08,881 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-27 12:54:08,885 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.08 12:54:08 BasicIcfg [2023-08-27 12:54:08,885 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-27 12:54:08,885 INFO L158 Benchmark]: Toolchain (without parser) took 484319.20ms. Allocated memory was 375.4MB in the beginning and 5.7GB in the end (delta: 5.3GB). Free memory was 330.0MB in the beginning and 1.6GB in the end (delta: -1.3GB). Peak memory consumption was 4.1GB. Max. memory is 16.0GB. [2023-08-27 12:54:08,885 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 375.4MB. Free memory is still 352.6MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-27 12:54:08,885 INFO L158 Benchmark]: CACSL2BoogieTranslator took 309.56ms. Allocated memory is still 375.4MB. Free memory was 329.7MB in the beginning and 318.1MB in the end (delta: 11.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. [2023-08-27 12:54:08,886 INFO L158 Benchmark]: Boogie Procedure Inliner took 71.76ms. Allocated memory is still 375.4MB. Free memory was 318.1MB in the beginning and 314.5MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2023-08-27 12:54:08,886 INFO L158 Benchmark]: Boogie Preprocessor took 51.37ms. Allocated memory is still 375.4MB. Free memory was 314.5MB in the beginning and 312.1MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-27 12:54:08,886 INFO L158 Benchmark]: RCFGBuilder took 5221.36ms. Allocated memory was 375.4MB in the beginning and 811.6MB in the end (delta: 436.2MB). Free memory was 312.1MB in the beginning and 566.6MB in the end (delta: -254.5MB). Peak memory consumption was 264.2MB. Max. memory is 16.0GB. [2023-08-27 12:54:08,886 INFO L158 Benchmark]: TraceAbstraction took 478659.45ms. Allocated memory was 811.6MB in the beginning and 5.7GB in the end (delta: 4.9GB). Free memory was 566.6MB in the beginning and 1.6GB in the end (delta: -1.0GB). Peak memory consumption was 3.9GB. Max. memory is 16.0GB. [2023-08-27 12:54:08,888 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 375.4MB. Free memory is still 352.6MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 309.56ms. Allocated memory is still 375.4MB. Free memory was 329.7MB in the beginning and 318.1MB in the end (delta: 11.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 71.76ms. Allocated memory is still 375.4MB. Free memory was 318.1MB in the beginning and 314.5MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * Boogie Preprocessor took 51.37ms. Allocated memory is still 375.4MB. Free memory was 314.5MB in the beginning and 312.1MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 5221.36ms. Allocated memory was 375.4MB in the beginning and 811.6MB in the end (delta: 436.2MB). Free memory was 312.1MB in the beginning and 566.6MB in the end (delta: -254.5MB). Peak memory consumption was 264.2MB. Max. memory is 16.0GB. * TraceAbstraction took 478659.45ms. Allocated memory was 811.6MB in the beginning and 5.7GB in the end (delta: 4.9GB). Free memory was 566.6MB in the beginning and 1.6GB in the end (delta: -1.0GB). Peak memory consumption was 3.9GB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 52.9s, 200 PlacesBefore, 98 PlacesAfterwards, 191 TransitionsBefore, 88 TransitionsAfterwards, 6318 CoEnabledTransitionPairs, 8 FixpointIterations, 84 TrivialSequentialCompositions, 18 ConcurrentSequentialCompositions, 3 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 106 TotalNumberOfCompositions, 4326 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4326, independent: 4326, independent conditional: 0, independent unconditional: 4326, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1311, independent: 1311, independent conditional: 0, independent unconditional: 1311, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 4326, independent: 3015, independent conditional: 0, independent unconditional: 3015, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 1311, unknown conditional: 0, unknown unconditional: 1311] , Statistics on independence cache: Total cache size (in pairs): 378, Positive cache size: 378, Positive conditional cache size: 0, Positive unconditional cache size: 378, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 106]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 106]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 106]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 106]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 106]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 106]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 106]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 106]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 106]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 106]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 106]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 106]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 106]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 106]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 106]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 106]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 106]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 106]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 106]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 106]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 106]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 106]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 106]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 106]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 21]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 292 locations, 148 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 477.0s, OverallIterations: 31, TraceHistogramMax: 1, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 376.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 53.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1041 SdHoareTripleChecker+Valid, 4.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1041 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 4.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 54 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1429 IncrementalHoareTripleChecker+Invalid, 1483 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 54 mSolverCounterUnsat, 0 mSDtfsCounter, 1429 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 73 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=194occurred in iteration=0, InterpolantAutomatonStates: 110, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 2.4s SatisfiabilityAnalysisTime, 43.3s InterpolantComputationTime, 187 NumberOfCodeBlocks, 187 NumberOfCodeBlocksAsserted, 31 NumberOfCheckSat, 156 ConstructedInterpolants, 0 QuantifiedInterpolants, 2177 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 31 InterpolantComputations, 31 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 73 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-27 12:54:08,937 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...