/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 -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/goblint-regression/28-race_reach_92-evilcollapse_racing.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-26 22:55:51,861 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-26 22:55:51,934 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 [2023-08-26 22:55:51,938 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-26 22:55:51,939 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-26 22:55:51,968 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-26 22:55:51,969 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-26 22:55:51,970 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-26 22:55:51,970 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-26 22:55:51,974 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-26 22:55:51,974 INFO L153 SettingsManager]: * Use SBE=true [2023-08-26 22:55:51,974 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-26 22:55:51,974 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-26 22:55:51,976 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-26 22:55:51,976 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-26 22:55:51,976 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-26 22:55:51,976 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-26 22:55:51,977 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-26 22:55:51,977 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-26 22:55:51,977 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-26 22:55:51,977 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-26 22:55:51,978 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-26 22:55:51,978 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-26 22:55:51,978 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-26 22:55:51,979 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-26 22:55:51,979 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-26 22:55:51,979 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-26 22:55:51,979 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 22:55:51,980 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-26 22:55:51,980 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-26 22:55:51,981 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-26 22:55:51,981 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-26 22:55:51,981 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-26 22:55:51,981 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-26 22:55:51,982 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-26 22:55:51,982 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-08-26 22:55:52,291 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-26 22:55:52,311 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-26 22:55:52,313 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-26 22:55:52,314 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-26 22:55:52,315 INFO L274 PluginConnector]: CDTParser initialized [2023-08-26 22:55:52,317 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_92-evilcollapse_racing.i [2023-08-26 22:55:53,477 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-26 22:55:53,774 INFO L384 CDTParser]: Found 1 translation units. [2023-08-26 22:55:53,775 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_92-evilcollapse_racing.i [2023-08-26 22:55:53,799 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc5e129ea/b003f5815731430293a3966b5a9f710f/FLAG08cd4c880 [2023-08-26 22:55:53,814 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc5e129ea/b003f5815731430293a3966b5a9f710f [2023-08-26 22:55:53,819 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-26 22:55:53,820 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-26 22:55:53,821 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-26 22:55:53,822 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-26 22:55:53,824 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-26 22:55:53,824 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 10:55:53" (1/1) ... [2023-08-26 22:55:53,825 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44fb7730 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:55:53, skipping insertion in model container [2023-08-26 22:55:53,825 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 10:55:53" (1/1) ... [2023-08-26 22:55:53,881 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-26 22:55:54,332 WARN L1561 CHandler]: Possible shadowing of function new [2023-08-26 22:55:54,332 WARN L1561 CHandler]: Possible shadowing of function new [2023-08-26 22:55:54,333 WARN L1561 CHandler]: Possible shadowing of function new [2023-08-26 22:55:54,333 WARN L1561 CHandler]: Possible shadowing of function new [2023-08-26 22:55:54,357 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 22:55:54,371 INFO L201 MainTranslator]: Completed pre-run [2023-08-26 22:55:54,385 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [244] [2023-08-26 22:55:54,393 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [244] [2023-08-26 22:55:54,412 WARN L1561 CHandler]: Possible shadowing of function new [2023-08-26 22:55:54,413 WARN L1561 CHandler]: Possible shadowing of function new [2023-08-26 22:55:54,414 WARN L1561 CHandler]: Possible shadowing of function new [2023-08-26 22:55:54,415 WARN L1561 CHandler]: Possible shadowing of function new [2023-08-26 22:55:54,432 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 22:55:54,509 INFO L206 MainTranslator]: Completed translation [2023-08-26 22:55:54,509 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:55:54 WrapperNode [2023-08-26 22:55:54,510 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-26 22:55:54,511 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-26 22:55:54,511 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-26 22:55:54,511 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-26 22:55:54,517 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:55:54" (1/1) ... [2023-08-26 22:55:54,548 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:55:54" (1/1) ... [2023-08-26 22:55:54,583 INFO L138 Inliner]: procedures = 278, calls = 52, calls flagged for inlining = 12, calls inlined = 13, statements flattened = 248 [2023-08-26 22:55:54,583 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-26 22:55:54,584 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-26 22:55:54,586 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-26 22:55:54,586 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-26 22:55:54,594 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:55:54" (1/1) ... [2023-08-26 22:55:54,594 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:55:54" (1/1) ... [2023-08-26 22:55:54,598 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:55:54" (1/1) ... [2023-08-26 22:55:54,598 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:55:54" (1/1) ... [2023-08-26 22:55:54,607 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:55:54" (1/1) ... [2023-08-26 22:55:54,628 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:55:54" (1/1) ... [2023-08-26 22:55:54,630 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:55:54" (1/1) ... [2023-08-26 22:55:54,632 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:55:54" (1/1) ... [2023-08-26 22:55:54,635 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-26 22:55:54,636 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-26 22:55:54,636 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-26 22:55:54,636 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-26 22:55:54,637 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:55:54" (1/1) ... [2023-08-26 22:55:54,642 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 22:55:54,656 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 22:55:54,668 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) [2023-08-26 22:55:54,704 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 [2023-08-26 22:55:54,715 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-26 22:55:54,716 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-08-26 22:55:54,716 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-26 22:55:54,716 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-26 22:55:54,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-26 22:55:54,716 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-26 22:55:54,716 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-26 22:55:54,716 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-26 22:55:54,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-26 22:55:54,717 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-26 22:55:54,717 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-26 22:55:54,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-26 22:55:54,717 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-26 22:55:54,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-26 22:55:54,718 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-26 22:55:54,892 INFO L236 CfgBuilder]: Building ICFG [2023-08-26 22:55:54,893 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-26 22:55:55,265 INFO L277 CfgBuilder]: Performing block encoding [2023-08-26 22:55:55,272 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-26 22:55:55,272 INFO L302 CfgBuilder]: Removed 16 assume(true) statements. [2023-08-26 22:55:55,274 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 10:55:55 BoogieIcfgContainer [2023-08-26 22:55:55,274 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-26 22:55:55,276 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-26 22:55:55,276 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-26 22:55:55,278 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-26 22:55:55,278 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 10:55:53" (1/3) ... [2023-08-26 22:55:55,279 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f0d8cf7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 10:55:55, skipping insertion in model container [2023-08-26 22:55:55,279 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:55:54" (2/3) ... [2023-08-26 22:55:55,279 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f0d8cf7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 10:55:55, skipping insertion in model container [2023-08-26 22:55:55,279 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 10:55:55" (3/3) ... [2023-08-26 22:55:55,280 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_92-evilcollapse_racing.i [2023-08-26 22:55:55,302 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-26 22:55:55,303 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 17 error locations. [2023-08-26 22:55:55,303 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-26 22:55:55,403 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-26 22:55:55,434 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 249 places, 273 transitions, 554 flow [2023-08-26 22:55:55,552 INFO L124 PetriNetUnfolderBase]: 29/291 cut-off events. [2023-08-26 22:55:55,552 INFO L125 PetriNetUnfolderBase]: For 1/2 co-relation queries the response was YES. [2023-08-26 22:55:55,559 INFO L83 FinitePrefix]: Finished finitePrefix Result has 297 conditions, 291 events. 29/291 cut-off events. For 1/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 566 event pairs, 0 based on Foata normal form. 0/242 useless extension candidates. Maximal degree in co-relation 150. Up to 4 conditions per place. [2023-08-26 22:55:55,560 INFO L82 GeneralOperation]: Start removeDead. Operand has 249 places, 273 transitions, 554 flow [2023-08-26 22:55:55,565 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 247 places, 270 transitions, 548 flow [2023-08-26 22:55:55,568 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 22:55:55,575 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 247 places, 270 transitions, 548 flow [2023-08-26 22:55:55,578 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 247 places, 270 transitions, 548 flow [2023-08-26 22:55:55,578 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 247 places, 270 transitions, 548 flow [2023-08-26 22:55:55,628 INFO L124 PetriNetUnfolderBase]: 28/288 cut-off events. [2023-08-26 22:55:55,629 INFO L125 PetriNetUnfolderBase]: For 1/2 co-relation queries the response was YES. [2023-08-26 22:55:55,633 INFO L83 FinitePrefix]: Finished finitePrefix Result has 294 conditions, 288 events. 28/288 cut-off events. For 1/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 550 event pairs, 0 based on Foata normal form. 0/240 useless extension candidates. Maximal degree in co-relation 150. Up to 4 conditions per place. [2023-08-26 22:55:55,637 INFO L119 LiptonReduction]: Number of co-enabled transitions 5768 [2023-08-26 22:56:16,525 WARN L234 SmtUtils]: Spent 10.38s on a formula simplification. DAG size of input: 187 DAG size of output: 185 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-26 22:56:23,265 WARN L234 SmtUtils]: Spent 6.74s on a formula simplification that was a NOOP. DAG size: 177 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-26 22:56:35,878 WARN L234 SmtUtils]: Spent 12.61s on a formula simplification. DAG size of input: 187 DAG size of output: 185 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-26 22:56:42,091 WARN L234 SmtUtils]: Spent 6.21s on a formula simplification that was a NOOP. DAG size: 177 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-26 22:56:58,140 WARN L234 SmtUtils]: Spent 15.36s on a formula simplification. DAG size of input: 188 DAG size of output: 187 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-26 22:57:07,180 WARN L234 SmtUtils]: Spent 9.04s on a formula simplification that was a NOOP. DAG size: 179 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-26 22:57:21,185 WARN L234 SmtUtils]: Spent 14.00s on a formula simplification. DAG size of input: 188 DAG size of output: 187 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-26 22:57:25,997 INFO L134 LiptonReduction]: Checked pairs total: 6319 [2023-08-26 22:57:25,998 INFO L136 LiptonReduction]: Total number of compositions: 291 [2023-08-26 22:57:26,008 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-26 22:57:26,012 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;@833fabd, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 22:57:26,012 INFO L358 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2023-08-26 22:57:26,015 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 22:57:26,015 INFO L124 PetriNetUnfolderBase]: 2/5 cut-off events. [2023-08-26 22:57:26,015 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 22:57:26,015 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 22:57:26,016 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-26 22:57:26,016 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2023-08-26 22:57:26,020 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 22:57:26,020 INFO L85 PathProgramCache]: Analyzing trace with hash 1078545, now seen corresponding path program 1 times [2023-08-26 22:57:26,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 22:57:26,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781070104] [2023-08-26 22:57:26,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 22:57:26,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 22:57:26,118 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-08-26 22:57:26,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [401291514] [2023-08-26 22:57:26,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 22:57:26,119 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 22:57:26,119 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 22:57:26,122 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-26 22:57:26,144 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-26 22:57:26,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 22:57:26,223 INFO L262 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 3 conjunts are in the unsatisfiable core [2023-08-26 22:57:26,226 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 22:57:26,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 22:57:26,248 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-26 22:57:26,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 22:57:26,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781070104] [2023-08-26 22:57:26,248 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-08-26 22:57:26,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [401291514] [2023-08-26 22:57:26,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [401291514] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 22:57:26,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 22:57:26,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-26 22:57:26,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516093318] [2023-08-26 22:57:26,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 22:57:26,258 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 22:57:26,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 22:57:26,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 22:57:26,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 22:57:26,282 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 234 out of 564 [2023-08-26 22:57:26,285 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 53 transitions, 114 flow. Second operand has 3 states, 3 states have (on average 235.0) internal successors, (705), 3 states have internal predecessors, (705), 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) [2023-08-26 22:57:26,285 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 22:57:26,285 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 234 of 564 [2023-08-26 22:57:26,286 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 22:57:26,694 INFO L124 PetriNetUnfolderBase]: 107/244 cut-off events. [2023-08-26 22:57:26,694 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-26 22:57:26,695 INFO L83 FinitePrefix]: Finished finitePrefix Result has 476 conditions, 244 events. 107/244 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 931 event pairs, 85 based on Foata normal form. 12/137 useless extension candidates. Maximal degree in co-relation 426. Up to 220 conditions per place. [2023-08-26 22:57:26,697 INFO L140 encePairwiseOnDemand]: 545/564 looper letters, 39 selfloop transitions, 3 changer transitions 0/46 dead transitions. [2023-08-26 22:57:26,697 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 46 transitions, 184 flow [2023-08-26 22:57:26,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 22:57:26,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 22:57:26,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 761 transitions. [2023-08-26 22:57:26,712 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44976359338061467 [2023-08-26 22:57:26,713 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 761 transitions. [2023-08-26 22:57:26,713 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 761 transitions. [2023-08-26 22:57:26,716 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 22:57:26,718 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 761 transitions. [2023-08-26 22:57:26,722 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 253.66666666666666) internal successors, (761), 3 states have internal predecessors, (761), 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) [2023-08-26 22:57:26,728 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 564.0) internal successors, (2256), 4 states have internal predecessors, (2256), 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) [2023-08-26 22:57:26,729 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 564.0) internal successors, (2256), 4 states have internal predecessors, (2256), 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) [2023-08-26 22:57:26,731 INFO L175 Difference]: Start difference. First operand has 42 places, 53 transitions, 114 flow. Second operand 3 states and 761 transitions. [2023-08-26 22:57:26,732 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 46 transitions, 184 flow [2023-08-26 22:57:26,734 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 46 transitions, 184 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 22:57:26,735 INFO L231 Difference]: Finished difference. Result has 44 places, 44 transitions, 122 flow [2023-08-26 22:57:26,737 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=564, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=122, PETRI_PLACES=44, PETRI_TRANSITIONS=44} [2023-08-26 22:57:26,740 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 2 predicate places. [2023-08-26 22:57:26,740 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 44 transitions, 122 flow [2023-08-26 22:57:26,741 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 235.0) internal successors, (705), 3 states have internal predecessors, (705), 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) [2023-08-26 22:57:26,741 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 22:57:26,741 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-26 22:57:26,752 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-08-26 22:57:26,952 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-08-26 22:57:26,953 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2023-08-26 22:57:26,953 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 22:57:26,953 INFO L85 PathProgramCache]: Analyzing trace with hash 1078800, now seen corresponding path program 1 times [2023-08-26 22:57:26,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 22:57:26,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300820818] [2023-08-26 22:57:26,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 22:57:26,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 22:57:27,020 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-08-26 22:57:27,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2108687353] [2023-08-26 22:57:27,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 22:57:27,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 22:57:27,021 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 22:57:27,027 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-26 22:57:27,069 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-08-26 22:57:27,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 22:57:27,199 INFO L262 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 3 conjunts are in the unsatisfiable core [2023-08-26 22:57:27,200 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 22:57:27,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 22:57:27,204 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-26 22:57:27,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 22:57:27,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300820818] [2023-08-26 22:57:27,205 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-08-26 22:57:27,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2108687353] [2023-08-26 22:57:27,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2108687353] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 22:57:27,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 22:57:27,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 22:57:27,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229352768] [2023-08-26 22:57:27,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 22:57:27,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 22:57:27,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 22:57:27,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 22:57:27,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 22:57:27,208 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 237 out of 564 [2023-08-26 22:57:27,209 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 44 transitions, 122 flow. Second operand has 3 states, 3 states have (on average 238.0) internal successors, (714), 3 states have internal predecessors, (714), 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) [2023-08-26 22:57:27,209 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 22:57:27,209 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 237 of 564 [2023-08-26 22:57:27,209 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 22:57:27,376 INFO L124 PetriNetUnfolderBase]: 106/242 cut-off events. [2023-08-26 22:57:27,376 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-26 22:57:27,377 INFO L83 FinitePrefix]: Finished finitePrefix Result has 484 conditions, 242 events. 106/242 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 926 event pairs, 85 based on Foata normal form. 2/130 useless extension candidates. Maximal degree in co-relation 467. Up to 217 conditions per place. [2023-08-26 22:57:27,379 INFO L140 encePairwiseOnDemand]: 559/564 looper letters, 33 selfloop transitions, 5 changer transitions 0/42 dead transitions. [2023-08-26 22:57:27,380 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 42 transitions, 188 flow [2023-08-26 22:57:27,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 22:57:27,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 22:57:27,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 749 transitions. [2023-08-26 22:57:27,383 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4426713947990544 [2023-08-26 22:57:27,383 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 749 transitions. [2023-08-26 22:57:27,383 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 749 transitions. [2023-08-26 22:57:27,384 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 22:57:27,384 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 749 transitions. [2023-08-26 22:57:27,386 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 249.66666666666666) internal successors, (749), 3 states have internal predecessors, (749), 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) [2023-08-26 22:57:27,389 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 564.0) internal successors, (2256), 4 states have internal predecessors, (2256), 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) [2023-08-26 22:57:27,391 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 564.0) internal successors, (2256), 4 states have internal predecessors, (2256), 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) [2023-08-26 22:57:27,391 INFO L175 Difference]: Start difference. First operand has 44 places, 44 transitions, 122 flow. Second operand 3 states and 749 transitions. [2023-08-26 22:57:27,391 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 42 transitions, 188 flow [2023-08-26 22:57:27,392 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 42 transitions, 184 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-26 22:57:27,393 INFO L231 Difference]: Finished difference. Result has 43 places, 42 transitions, 118 flow [2023-08-26 22:57:27,393 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=564, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=118, PETRI_PLACES=43, PETRI_TRANSITIONS=42} [2023-08-26 22:57:27,393 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 1 predicate places. [2023-08-26 22:57:27,395 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 42 transitions, 118 flow [2023-08-26 22:57:27,395 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 238.0) internal successors, (714), 3 states have internal predecessors, (714), 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) [2023-08-26 22:57:27,395 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 22:57:27,395 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1] [2023-08-26 22:57:27,407 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-08-26 22:57:27,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-08-26 22:57:27,602 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2023-08-26 22:57:27,602 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 22:57:27,602 INFO L85 PathProgramCache]: Analyzing trace with hash 1036742639, now seen corresponding path program 1 times [2023-08-26 22:57:27,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 22:57:27,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815382408] [2023-08-26 22:57:27,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 22:57:27,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 22:57:27,647 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-08-26 22:57:27,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1194751680] [2023-08-26 22:57:27,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 22:57:27,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 22:57:27,648 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 22:57:27,649 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-26 22:57:27,691 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-08-26 22:57:27,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 22:57:27,777 INFO L262 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 2 conjunts are in the unsatisfiable core [2023-08-26 22:57:27,778 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 22:57:27,786 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 22:57:27,786 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-26 22:57:27,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 22:57:27,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815382408] [2023-08-26 22:57:27,787 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-08-26 22:57:27,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1194751680] [2023-08-26 22:57:27,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1194751680] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 22:57:27,787 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 22:57:27,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-26 22:57:27,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769252806] [2023-08-26 22:57:27,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 22:57:27,788 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 22:57:27,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 22:57:27,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 22:57:27,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 22:57:27,790 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 237 out of 564 [2023-08-26 22:57:27,790 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 42 transitions, 118 flow. Second operand has 3 states, 3 states have (on average 238.66666666666666) internal successors, (716), 3 states have internal predecessors, (716), 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) [2023-08-26 22:57:27,791 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 22:57:27,791 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 237 of 564 [2023-08-26 22:57:27,791 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 22:57:28,011 INFO L124 PetriNetUnfolderBase]: 106/246 cut-off events. [2023-08-26 22:57:28,012 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-26 22:57:28,013 INFO L83 FinitePrefix]: Finished finitePrefix Result has 498 conditions, 246 events. 106/246 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 939 event pairs, 85 based on Foata normal form. 2/134 useless extension candidates. Maximal degree in co-relation 448. Up to 223 conditions per place. [2023-08-26 22:57:28,014 INFO L140 encePairwiseOnDemand]: 559/564 looper letters, 39 selfloop transitions, 2 changer transitions 0/45 dead transitions. [2023-08-26 22:57:28,014 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 45 transitions, 210 flow [2023-08-26 22:57:28,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 22:57:28,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 22:57:28,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 754 transitions. [2023-08-26 22:57:28,017 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44562647754137114 [2023-08-26 22:57:28,017 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 754 transitions. [2023-08-26 22:57:28,017 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 754 transitions. [2023-08-26 22:57:28,017 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 22:57:28,018 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 754 transitions. [2023-08-26 22:57:28,019 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 251.33333333333334) internal successors, (754), 3 states have internal predecessors, (754), 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) [2023-08-26 22:57:28,022 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 564.0) internal successors, (2256), 4 states have internal predecessors, (2256), 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) [2023-08-26 22:57:28,023 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 564.0) internal successors, (2256), 4 states have internal predecessors, (2256), 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) [2023-08-26 22:57:28,023 INFO L175 Difference]: Start difference. First operand has 43 places, 42 transitions, 118 flow. Second operand 3 states and 754 transitions. [2023-08-26 22:57:28,023 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 45 transitions, 210 flow [2023-08-26 22:57:28,025 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 45 transitions, 200 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-26 22:57:28,026 INFO L231 Difference]: Finished difference. Result has 44 places, 43 transitions, 126 flow [2023-08-26 22:57:28,026 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=564, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=126, PETRI_PLACES=44, PETRI_TRANSITIONS=43} [2023-08-26 22:57:28,027 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 2 predicate places. [2023-08-26 22:57:28,027 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 43 transitions, 126 flow [2023-08-26 22:57:28,028 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 238.66666666666666) internal successors, (716), 3 states have internal predecessors, (716), 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) [2023-08-26 22:57:28,028 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 22:57:28,028 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2023-08-26 22:57:28,038 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-08-26 22:57:28,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 22:57:28,239 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2023-08-26 22:57:28,240 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 22:57:28,240 INFO L85 PathProgramCache]: Analyzing trace with hash 2074996998, now seen corresponding path program 1 times [2023-08-26 22:57:28,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 22:57:28,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688463093] [2023-08-26 22:57:28,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 22:57:28,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 22:57:28,274 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-08-26 22:57:28,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1868148733] [2023-08-26 22:57:28,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 22:57:28,275 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 22:57:28,275 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 22:57:28,276 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-26 22:57:28,286 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-08-26 22:57:28,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 22:57:28,423 INFO L262 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 3 conjunts are in the unsatisfiable core [2023-08-26 22:57:28,423 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 22:57:28,446 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 22:57:28,446 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-26 22:57:28,462 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 22:57:28,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 22:57:28,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688463093] [2023-08-26 22:57:28,462 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-08-26 22:57:28,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1868148733] [2023-08-26 22:57:28,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1868148733] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-26 22:57:28,463 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-08-26 22:57:28,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-08-26 22:57:28,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304002204] [2023-08-26 22:57:28,463 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-08-26 22:57:28,463 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 22:57:28,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 22:57:28,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 22:57:28,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-26 22:57:28,466 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 237 out of 564 [2023-08-26 22:57:28,467 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 43 transitions, 126 flow. Second operand has 6 states, 6 states have (on average 238.5) internal successors, (1431), 6 states have internal predecessors, (1431), 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) [2023-08-26 22:57:28,467 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 22:57:28,467 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 237 of 564 [2023-08-26 22:57:28,467 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 22:57:28,937 INFO L124 PetriNetUnfolderBase]: 108/258 cut-off events. [2023-08-26 22:57:28,937 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-26 22:57:28,937 INFO L83 FinitePrefix]: Finished finitePrefix Result has 541 conditions, 258 events. 108/258 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1002 event pairs, 85 based on Foata normal form. 6/147 useless extension candidates. Maximal degree in co-relation 464. Up to 221 conditions per place. [2023-08-26 22:57:28,939 INFO L140 encePairwiseOnDemand]: 557/564 looper letters, 43 selfloop transitions, 7 changer transitions 0/54 dead transitions. [2023-08-26 22:57:28,939 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 54 transitions, 270 flow [2023-08-26 22:57:28,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 22:57:28,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 22:57:28,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1480 transitions. [2023-08-26 22:57:28,943 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4373522458628842 [2023-08-26 22:57:28,943 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1480 transitions. [2023-08-26 22:57:28,943 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1480 transitions. [2023-08-26 22:57:28,944 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 22:57:28,944 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1480 transitions. [2023-08-26 22:57:28,947 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 246.66666666666666) internal successors, (1480), 6 states have internal predecessors, (1480), 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) [2023-08-26 22:57:28,952 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 564.0) internal successors, (3948), 7 states have internal predecessors, (3948), 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) [2023-08-26 22:57:28,954 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 564.0) internal successors, (3948), 7 states have internal predecessors, (3948), 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) [2023-08-26 22:57:28,954 INFO L175 Difference]: Start difference. First operand has 44 places, 43 transitions, 126 flow. Second operand 6 states and 1480 transitions. [2023-08-26 22:57:28,954 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 54 transitions, 270 flow [2023-08-26 22:57:28,955 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 54 transitions, 268 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 22:57:28,956 INFO L231 Difference]: Finished difference. Result has 52 places, 48 transitions, 200 flow [2023-08-26 22:57:28,956 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=564, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=200, PETRI_PLACES=52, PETRI_TRANSITIONS=48} [2023-08-26 22:57:28,957 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 10 predicate places. [2023-08-26 22:57:28,957 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 48 transitions, 200 flow [2023-08-26 22:57:28,958 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 238.5) internal successors, (1431), 6 states have internal predecessors, (1431), 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) [2023-08-26 22:57:28,958 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 22:57:28,958 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 2, 1, 1, 1] [2023-08-26 22:57:28,968 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-08-26 22:57:29,168 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 22:57:29,169 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2023-08-26 22:57:29,169 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 22:57:29,169 INFO L85 PathProgramCache]: Analyzing trace with hash -487686737, now seen corresponding path program 2 times [2023-08-26 22:57:29,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 22:57:29,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015425369] [2023-08-26 22:57:29,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 22:57:29,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 22:57:29,236 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-08-26 22:57:29,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [103891043] [2023-08-26 22:57:29,237 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-26 22:57:29,237 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 22:57:29,237 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 22:57:29,246 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-26 22:57:29,262 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-08-26 22:57:29,435 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-08-26 22:57:29,435 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-26 22:57:29,436 INFO L262 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 3 conjunts are in the unsatisfiable core [2023-08-26 22:57:29,437 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 22:57:29,442 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-08-26 22:57:29,442 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-26 22:57:29,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 22:57:29,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015425369] [2023-08-26 22:57:29,442 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-08-26 22:57:29,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [103891043] [2023-08-26 22:57:29,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [103891043] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 22:57:29,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 22:57:29,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 22:57:29,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450117006] [2023-08-26 22:57:29,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 22:57:29,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 22:57:29,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 22:57:29,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 22:57:29,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 22:57:29,445 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 237 out of 564 [2023-08-26 22:57:29,446 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 48 transitions, 200 flow. Second operand has 3 states, 3 states have (on average 239.0) internal successors, (717), 3 states have internal predecessors, (717), 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) [2023-08-26 22:57:29,446 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 22:57:29,446 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 237 of 564 [2023-08-26 22:57:29,446 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 22:57:29,623 INFO L124 PetriNetUnfolderBase]: 108/256 cut-off events. [2023-08-26 22:57:29,623 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2023-08-26 22:57:29,624 INFO L83 FinitePrefix]: Finished finitePrefix Result has 578 conditions, 256 events. 108/256 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 988 event pairs, 85 based on Foata normal form. 1/141 useless extension candidates. Maximal degree in co-relation 478. Up to 235 conditions per place. [2023-08-26 22:57:29,625 INFO L140 encePairwiseOnDemand]: 560/564 looper letters, 42 selfloop transitions, 2 changer transitions 0/48 dead transitions. [2023-08-26 22:57:29,625 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 48 transitions, 288 flow [2023-08-26 22:57:29,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 22:57:29,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 22:57:29,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 751 transitions. [2023-08-26 22:57:29,627 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4438534278959811 [2023-08-26 22:57:29,627 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 751 transitions. [2023-08-26 22:57:29,628 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 751 transitions. [2023-08-26 22:57:29,628 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 22:57:29,628 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 751 transitions. [2023-08-26 22:57:29,630 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 250.33333333333334) internal successors, (751), 3 states have internal predecessors, (751), 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) [2023-08-26 22:57:29,632 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 564.0) internal successors, (2256), 4 states have internal predecessors, (2256), 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) [2023-08-26 22:57:29,633 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 564.0) internal successors, (2256), 4 states have internal predecessors, (2256), 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) [2023-08-26 22:57:29,633 INFO L175 Difference]: Start difference. First operand has 52 places, 48 transitions, 200 flow. Second operand 3 states and 751 transitions. [2023-08-26 22:57:29,634 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 48 transitions, 288 flow [2023-08-26 22:57:29,636 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 48 transitions, 278 flow, removed 4 selfloop flow, removed 1 redundant places. [2023-08-26 22:57:29,637 INFO L231 Difference]: Finished difference. Result has 54 places, 48 transitions, 200 flow [2023-08-26 22:57:29,637 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=564, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=200, PETRI_PLACES=54, PETRI_TRANSITIONS=48} [2023-08-26 22:57:29,637 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 12 predicate places. [2023-08-26 22:57:29,638 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 48 transitions, 200 flow [2023-08-26 22:57:29,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 239.0) internal successors, (717), 3 states have internal predecessors, (717), 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) [2023-08-26 22:57:29,638 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 22:57:29,638 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 2, 1, 1, 1] [2023-08-26 22:57:29,649 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-08-26 22:57:29,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 22:57:29,847 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2023-08-26 22:57:29,847 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 22:57:29,848 INFO L85 PathProgramCache]: Analyzing trace with hash 2061584458, now seen corresponding path program 3 times [2023-08-26 22:57:29,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 22:57:29,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823455766] [2023-08-26 22:57:29,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 22:57:29,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 22:57:29,926 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-08-26 22:57:29,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [533259517] [2023-08-26 22:57:29,927 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-08-26 22:57:29,927 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 22:57:29,927 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 22:57:29,928 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-26 22:57:29,947 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-08-26 22:57:30,242 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-08-26 22:57:30,242 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-26 22:57:30,245 INFO L262 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 9 conjunts are in the unsatisfiable core [2023-08-26 22:57:30,246 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 22:57:30,290 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-26 22:57:30,291 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-26 22:57:30,444 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-26 22:57:30,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 22:57:30,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823455766] [2023-08-26 22:57:30,446 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-08-26 22:57:30,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [533259517] [2023-08-26 22:57:30,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [533259517] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-26 22:57:30,446 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-08-26 22:57:30,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 8 [2023-08-26 22:57:30,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916644422] [2023-08-26 22:57:30,447 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-08-26 22:57:30,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-26 22:57:30,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 22:57:30,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-26 22:57:30,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2023-08-26 22:57:30,450 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 228 out of 564 [2023-08-26 22:57:30,452 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 48 transitions, 200 flow. Second operand has 10 states, 10 states have (on average 229.4) internal successors, (2294), 10 states have internal predecessors, (2294), 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) [2023-08-26 22:57:30,452 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 22:57:30,452 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 228 of 564 [2023-08-26 22:57:30,452 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 22:57:31,476 INFO L124 PetriNetUnfolderBase]: 111/266 cut-off events. [2023-08-26 22:57:31,477 INFO L125 PetriNetUnfolderBase]: For 55/55 co-relation queries the response was YES. [2023-08-26 22:57:31,477 INFO L83 FinitePrefix]: Finished finitePrefix Result has 626 conditions, 266 events. 111/266 cut-off events. For 55/55 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 983 event pairs, 85 based on Foata normal form. 2/154 useless extension candidates. Maximal degree in co-relation 486. Up to 213 conditions per place. [2023-08-26 22:57:31,478 INFO L140 encePairwiseOnDemand]: 555/564 looper letters, 45 selfloop transitions, 16 changer transitions 0/65 dead transitions. [2023-08-26 22:57:31,478 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 65 transitions, 439 flow [2023-08-26 22:57:31,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-26 22:57:31,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-26 22:57:31,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2566 transitions. [2023-08-26 22:57:31,485 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4136041263700838 [2023-08-26 22:57:31,485 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2566 transitions. [2023-08-26 22:57:31,485 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2566 transitions. [2023-08-26 22:57:31,486 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 22:57:31,486 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2566 transitions. [2023-08-26 22:57:31,492 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 233.27272727272728) internal successors, (2566), 11 states have internal predecessors, (2566), 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) [2023-08-26 22:57:31,512 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 564.0) internal successors, (6768), 12 states have internal predecessors, (6768), 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) [2023-08-26 22:57:31,513 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 564.0) internal successors, (6768), 12 states have internal predecessors, (6768), 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) [2023-08-26 22:57:31,513 INFO L175 Difference]: Start difference. First operand has 54 places, 48 transitions, 200 flow. Second operand 11 states and 2566 transitions. [2023-08-26 22:57:31,513 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 65 transitions, 439 flow [2023-08-26 22:57:31,518 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 65 transitions, 425 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-26 22:57:31,520 INFO L231 Difference]: Finished difference. Result has 65 places, 59 transitions, 333 flow [2023-08-26 22:57:31,520 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=564, PETRI_DIFFERENCE_MINUEND_FLOW=184, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=333, PETRI_PLACES=65, PETRI_TRANSITIONS=59} [2023-08-26 22:57:31,523 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 23 predicate places. [2023-08-26 22:57:31,523 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 59 transitions, 333 flow [2023-08-26 22:57:31,524 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 229.4) internal successors, (2294), 10 states have internal predecessors, (2294), 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) [2023-08-26 22:57:31,524 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 22:57:31,524 INFO L208 CegarLoopForPetriNet]: trace histogram [6, 2, 1, 1, 1] [2023-08-26 22:57:31,531 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-08-26 22:57:31,731 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 22:57:31,731 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2023-08-26 22:57:31,731 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 22:57:31,732 INFO L85 PathProgramCache]: Analyzing trace with hash -515387281, now seen corresponding path program 1 times [2023-08-26 22:57:31,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 22:57:31,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741110849] [2023-08-26 22:57:31,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 22:57:31,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 22:57:31,820 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-08-26 22:57:31,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1248469828] [2023-08-26 22:57:31,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 22:57:31,821 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 22:57:31,821 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 22:57:31,829 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-26 22:57:31,830 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-08-26 22:57:32,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 22:57:32,363 INFO L262 TraceCheckSpWp]: Trace formula consists of 1536 conjuncts, 6 conjunts are in the unsatisfiable core [2023-08-26 22:57:32,365 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 22:57:32,398 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 16 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-26 22:57:32,399 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-26 22:57:32,453 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 16 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-26 22:57:32,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 22:57:32,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741110849] [2023-08-26 22:57:32,454 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-08-26 22:57:32,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1248469828] [2023-08-26 22:57:32,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1248469828] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-26 22:57:32,454 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-08-26 22:57:32,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2023-08-26 22:57:32,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387799306] [2023-08-26 22:57:32,454 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-08-26 22:57:32,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-26 22:57:32,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 22:57:32,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-26 22:57:32,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2023-08-26 22:57:32,458 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 237 out of 564 [2023-08-26 22:57:32,460 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 59 transitions, 333 flow. Second operand has 12 states, 12 states have (on average 238.33333333333334) internal successors, (2860), 12 states have internal predecessors, (2860), 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) [2023-08-26 22:57:32,460 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 22:57:32,460 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 237 of 564 [2023-08-26 22:57:32,460 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 22:57:33,163 INFO L124 PetriNetUnfolderBase]: 111/302 cut-off events. [2023-08-26 22:57:33,164 INFO L125 PetriNetUnfolderBase]: For 434/434 co-relation queries the response was YES. [2023-08-26 22:57:33,164 INFO L83 FinitePrefix]: Finished finitePrefix Result has 850 conditions, 302 events. 111/302 cut-off events. For 434/434 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1198 event pairs, 85 based on Foata normal form. 24/216 useless extension candidates. Maximal degree in co-relation 740. Up to 224 conditions per place. [2023-08-26 22:57:33,166 INFO L140 encePairwiseOnDemand]: 558/564 looper letters, 61 selfloop transitions, 21 changer transitions 0/86 dead transitions. [2023-08-26 22:57:33,166 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 86 transitions, 754 flow [2023-08-26 22:57:33,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-26 22:57:33,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-26 22:57:33,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2919 transitions. [2023-08-26 22:57:33,174 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43129432624113473 [2023-08-26 22:57:33,174 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 2919 transitions. [2023-08-26 22:57:33,174 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 2919 transitions. [2023-08-26 22:57:33,176 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 22:57:33,176 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 2919 transitions. [2023-08-26 22:57:33,181 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 243.25) internal successors, (2919), 12 states have internal predecessors, (2919), 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) [2023-08-26 22:57:33,191 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 564.0) internal successors, (7332), 13 states have internal predecessors, (7332), 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) [2023-08-26 22:57:33,193 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 564.0) internal successors, (7332), 13 states have internal predecessors, (7332), 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) [2023-08-26 22:57:33,193 INFO L175 Difference]: Start difference. First operand has 65 places, 59 transitions, 333 flow. Second operand 12 states and 2919 transitions. [2023-08-26 22:57:33,193 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 86 transitions, 754 flow [2023-08-26 22:57:33,196 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 86 transitions, 731 flow, removed 9 selfloop flow, removed 2 redundant places. [2023-08-26 22:57:33,197 INFO L231 Difference]: Finished difference. Result has 81 places, 68 transitions, 500 flow [2023-08-26 22:57:33,197 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=564, PETRI_DIFFERENCE_MINUEND_FLOW=312, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=500, PETRI_PLACES=81, PETRI_TRANSITIONS=68} [2023-08-26 22:57:33,198 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 39 predicate places. [2023-08-26 22:57:33,198 INFO L495 AbstractCegarLoop]: Abstraction has has 81 places, 68 transitions, 500 flow [2023-08-26 22:57:33,199 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 238.33333333333334) internal successors, (2860), 12 states have internal predecessors, (2860), 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) [2023-08-26 22:57:33,199 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 22:57:33,199 INFO L208 CegarLoopForPetriNet]: trace histogram [12, 2, 1, 1, 1] [2023-08-26 22:57:33,209 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-08-26 22:57:33,408 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 22:57:33,409 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2023-08-26 22:57:33,409 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 22:57:33,409 INFO L85 PathProgramCache]: Analyzing trace with hash 2114165007, now seen corresponding path program 2 times [2023-08-26 22:57:33,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 22:57:33,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395739653] [2023-08-26 22:57:33,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 22:57:33,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 22:57:33,536 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-08-26 22:57:33,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [198583099] [2023-08-26 22:57:33,537 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-26 22:57:33,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 22:57:33,537 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 22:57:33,538 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-26 22:57:33,541 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-08-26 22:57:34,463 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-08-26 22:57:34,463 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-26 22:57:34,475 INFO L262 TraceCheckSpWp]: Trace formula consists of 2940 conjuncts, 12 conjunts are in the unsatisfiable core [2023-08-26 22:57:34,478 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 22:57:34,565 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 34 proven. 55 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-26 22:57:34,566 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-26 22:57:34,745 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 34 proven. 55 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-26 22:57:34,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 22:57:34,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395739653] [2023-08-26 22:57:34,746 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-08-26 22:57:34,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [198583099] [2023-08-26 22:57:34,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [198583099] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-26 22:57:34,746 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-08-26 22:57:34,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24 [2023-08-26 22:57:34,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578814556] [2023-08-26 22:57:34,746 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-08-26 22:57:34,747 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-08-26 22:57:34,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 22:57:34,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-08-26 22:57:34,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2023-08-26 22:57:34,752 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 237 out of 564 [2023-08-26 22:57:34,756 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 68 transitions, 500 flow. Second operand has 24 states, 24 states have (on average 238.16666666666666) internal successors, (5716), 24 states have internal predecessors, (5716), 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) [2023-08-26 22:57:34,756 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 22:57:34,756 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 237 of 564 [2023-08-26 22:57:34,756 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 22:57:36,727 INFO L124 PetriNetUnfolderBase]: 111/374 cut-off events. [2023-08-26 22:57:36,727 INFO L125 PetriNetUnfolderBase]: For 3092/3092 co-relation queries the response was YES. [2023-08-26 22:57:36,728 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1431 conditions, 374 events. 111/374 cut-off events. For 3092/3092 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1384 event pairs, 85 based on Foata normal form. 48/312 useless extension candidates. Maximal degree in co-relation 1228. Up to 224 conditions per place. [2023-08-26 22:57:36,729 INFO L140 encePairwiseOnDemand]: 558/564 looper letters, 97 selfloop transitions, 33 changer transitions 0/134 dead transitions. [2023-08-26 22:57:36,730 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 134 transitions, 1590 flow [2023-08-26 22:57:36,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-08-26 22:57:36,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2023-08-26 22:57:36,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 5811 transitions. [2023-08-26 22:57:36,744 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4292996453900709 [2023-08-26 22:57:36,744 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 5811 transitions. [2023-08-26 22:57:36,744 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 5811 transitions. [2023-08-26 22:57:36,747 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 22:57:36,747 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 5811 transitions. [2023-08-26 22:57:36,759 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 242.125) internal successors, (5811), 24 states have internal predecessors, (5811), 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) [2023-08-26 22:57:36,775 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 564.0) internal successors, (14100), 25 states have internal predecessors, (14100), 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) [2023-08-26 22:57:36,777 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 564.0) internal successors, (14100), 25 states have internal predecessors, (14100), 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) [2023-08-26 22:57:36,778 INFO L175 Difference]: Start difference. First operand has 81 places, 68 transitions, 500 flow. Second operand 24 states and 5811 transitions. [2023-08-26 22:57:36,778 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 134 transitions, 1590 flow [2023-08-26 22:57:36,784 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 134 transitions, 1476 flow, removed 19 selfloop flow, removed 4 redundant places. [2023-08-26 22:57:36,786 INFO L231 Difference]: Finished difference. Result has 113 places, 83 transitions, 778 flow [2023-08-26 22:57:36,787 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=564, PETRI_DIFFERENCE_MINUEND_FLOW=461, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=778, PETRI_PLACES=113, PETRI_TRANSITIONS=83} [2023-08-26 22:57:36,787 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 71 predicate places. [2023-08-26 22:57:36,787 INFO L495 AbstractCegarLoop]: Abstraction has has 113 places, 83 transitions, 778 flow [2023-08-26 22:57:36,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 238.16666666666666) internal successors, (5716), 24 states have internal predecessors, (5716), 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) [2023-08-26 22:57:36,789 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 22:57:36,789 INFO L208 CegarLoopForPetriNet]: trace histogram [24, 2, 1, 1, 1] [2023-08-26 22:57:36,807 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-08-26 22:57:37,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-08-26 22:57:37,002 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2023-08-26 22:57:37,002 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 22:57:37,003 INFO L85 PathProgramCache]: Analyzing trace with hash 467812943, now seen corresponding path program 3 times [2023-08-26 22:57:37,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 22:57:37,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724704733] [2023-08-26 22:57:37,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 22:57:37,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 22:57:37,241 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-08-26 22:57:37,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [993722124] [2023-08-26 22:57:37,242 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-08-26 22:57:37,242 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 22:57:37,242 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 22:57:37,243 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-26 22:57:37,263 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-08-26 22:57:38,219 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-08-26 22:57:38,219 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-26 22:57:38,224 INFO L262 TraceCheckSpWp]: Trace formula consists of 600 conjuncts, 7 conjunts are in the unsatisfiable core [2023-08-26 22:57:38,228 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 22:57:38,290 INFO L134 CoverageAnalysis]: Checked inductivity of 326 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2023-08-26 22:57:38,290 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-26 22:57:38,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 22:57:38,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724704733] [2023-08-26 22:57:38,290 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-08-26 22:57:38,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [993722124] [2023-08-26 22:57:38,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [993722124] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 22:57:38,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 22:57:38,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-26 22:57:38,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460643904] [2023-08-26 22:57:38,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 22:57:38,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-26 22:57:38,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 22:57:38,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-26 22:57:38,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-08-26 22:57:38,293 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 228 out of 564 [2023-08-26 22:57:38,294 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 83 transitions, 778 flow. Second operand has 7 states, 7 states have (on average 229.14285714285714) internal successors, (1604), 7 states have internal predecessors, (1604), 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) [2023-08-26 22:57:38,294 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 22:57:38,294 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 228 of 564 [2023-08-26 22:57:38,294 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 22:57:38,842 INFO L124 PetriNetUnfolderBase]: 109/330 cut-off events. [2023-08-26 22:57:38,842 INFO L125 PetriNetUnfolderBase]: For 1638/1638 co-relation queries the response was YES. [2023-08-26 22:57:38,843 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1165 conditions, 330 events. 109/330 cut-off events. For 1638/1638 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1148 event pairs, 85 based on Foata normal form. 44/264 useless extension candidates. Maximal degree in co-relation 922. Up to 213 conditions per place. [2023-08-26 22:57:38,845 INFO L140 encePairwiseOnDemand]: 557/564 looper letters, 77 selfloop transitions, 13 changer transitions 0/94 dead transitions. [2023-08-26 22:57:38,845 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 94 transitions, 1002 flow [2023-08-26 22:57:38,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-26 22:57:38,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-26 22:57:38,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1638 transitions. [2023-08-26 22:57:38,849 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4148936170212766 [2023-08-26 22:57:38,849 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1638 transitions. [2023-08-26 22:57:38,849 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1638 transitions. [2023-08-26 22:57:38,850 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 22:57:38,850 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1638 transitions. [2023-08-26 22:57:38,852 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 234.0) internal successors, (1638), 7 states have internal predecessors, (1638), 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) [2023-08-26 22:57:38,856 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 564.0) internal successors, (4512), 8 states have internal predecessors, (4512), 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) [2023-08-26 22:57:38,857 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 564.0) internal successors, (4512), 8 states have internal predecessors, (4512), 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) [2023-08-26 22:57:38,857 INFO L175 Difference]: Start difference. First operand has 113 places, 83 transitions, 778 flow. Second operand 7 states and 1638 transitions. [2023-08-26 22:57:38,857 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 94 transitions, 1002 flow [2023-08-26 22:57:38,866 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 94 transitions, 891 flow, removed 29 selfloop flow, removed 11 redundant places. [2023-08-26 22:57:38,868 INFO L231 Difference]: Finished difference. Result has 106 places, 73 transitions, 571 flow [2023-08-26 22:57:38,868 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=564, PETRI_DIFFERENCE_MINUEND_FLOW=545, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=571, PETRI_PLACES=106, PETRI_TRANSITIONS=73} [2023-08-26 22:57:38,868 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 64 predicate places. [2023-08-26 22:57:38,869 INFO L495 AbstractCegarLoop]: Abstraction has has 106 places, 73 transitions, 571 flow [2023-08-26 22:57:38,869 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 229.14285714285714) internal successors, (1604), 7 states have internal predecessors, (1604), 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) [2023-08-26 22:57:38,869 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 22:57:38,869 INFO L208 CegarLoopForPetriNet]: trace histogram [46, 3, 2, 1, 1] [2023-08-26 22:57:38,883 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-08-26 22:57:39,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 22:57:39,079 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2023-08-26 22:57:39,079 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 22:57:39,080 INFO L85 PathProgramCache]: Analyzing trace with hash -1543570611, now seen corresponding path program 4 times [2023-08-26 22:57:39,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 22:57:39,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040181886] [2023-08-26 22:57:39,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 22:57:39,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 22:57:39,524 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-08-26 22:57:39,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1402597469] [2023-08-26 22:57:39,524 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-08-26 22:57:39,525 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 22:57:39,525 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 22:57:39,526 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-26 22:57:39,551 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-08-26 22:57:42,197 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-08-26 22:57:42,197 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-26 22:57:42,252 INFO L262 TraceCheckSpWp]: Trace formula consists of 10936 conjuncts, 24 conjunts are in the unsatisfiable core [2023-08-26 22:57:42,263 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 22:57:42,513 INFO L134 CoverageAnalysis]: Checked inductivity of 1179 backedges. 600 proven. 253 refuted. 0 times theorem prover too weak. 326 trivial. 0 not checked. [2023-08-26 22:57:42,513 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-26 22:57:42,867 INFO L134 CoverageAnalysis]: Checked inductivity of 1179 backedges. 600 proven. 253 refuted. 0 times theorem prover too weak. 326 trivial. 0 not checked. [2023-08-26 22:57:42,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 22:57:42,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040181886] [2023-08-26 22:57:42,867 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-08-26 22:57:42,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1402597469] [2023-08-26 22:57:42,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1402597469] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-26 22:57:42,867 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-08-26 22:57:42,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25] total 32 [2023-08-26 22:57:42,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306271441] [2023-08-26 22:57:42,868 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-08-26 22:57:42,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-08-26 22:57:42,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 22:57:42,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-08-26 22:57:42,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=496, Invalid=496, Unknown=0, NotChecked=0, Total=992 [2023-08-26 22:57:42,872 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 237 out of 564 [2023-08-26 22:57:42,876 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 73 transitions, 571 flow. Second operand has 32 states, 32 states have (on average 238.1875) internal successors, (7622), 32 states have internal predecessors, (7622), 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) [2023-08-26 22:57:42,876 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 22:57:42,876 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 237 of 564 [2023-08-26 22:57:42,876 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 22:57:44,460 INFO L124 PetriNetUnfolderBase]: 109/362 cut-off events. [2023-08-26 22:57:44,461 INFO L125 PetriNetUnfolderBase]: For 7086/7086 co-relation queries the response was YES. [2023-08-26 22:57:44,462 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1249 conditions, 362 events. 109/362 cut-off events. For 7086/7086 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1178 event pairs, 85 based on Foata normal form. 24/276 useless extension candidates. Maximal degree in co-relation 996. Up to 223 conditions per place. [2023-08-26 22:57:44,464 INFO L140 encePairwiseOnDemand]: 560/564 looper letters, 63 selfloop transitions, 39 changer transitions 0/106 dead transitions. [2023-08-26 22:57:44,464 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 106 transitions, 1174 flow [2023-08-26 22:57:44,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-08-26 22:57:44,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2023-08-26 22:57:44,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 7684 transitions. [2023-08-26 22:57:44,480 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4257535460992908 [2023-08-26 22:57:44,480 INFO L72 ComplementDD]: Start complementDD. Operand 32 states and 7684 transitions. [2023-08-26 22:57:44,480 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 7684 transitions. [2023-08-26 22:57:44,485 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 22:57:44,485 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 32 states and 7684 transitions. [2023-08-26 22:57:44,500 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 33 states, 32 states have (on average 240.125) internal successors, (7684), 32 states have internal predecessors, (7684), 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) [2023-08-26 22:57:44,520 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 33 states, 33 states have (on average 564.0) internal successors, (18612), 33 states have internal predecessors, (18612), 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) [2023-08-26 22:57:44,524 INFO L81 ComplementDD]: Finished complementDD. Result has 33 states, 33 states have (on average 564.0) internal successors, (18612), 33 states have internal predecessors, (18612), 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) [2023-08-26 22:57:44,524 INFO L175 Difference]: Start difference. First operand has 106 places, 73 transitions, 571 flow. Second operand 32 states and 7684 transitions. [2023-08-26 22:57:44,524 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 106 transitions, 1174 flow [2023-08-26 22:57:44,533 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 106 transitions, 1158 flow, removed 1 selfloop flow, removed 4 redundant places. [2023-08-26 22:57:44,535 INFO L231 Difference]: Finished difference. Result has 142 places, 82 transitions, 772 flow [2023-08-26 22:57:44,535 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=564, PETRI_DIFFERENCE_MINUEND_FLOW=555, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=32, PETRI_FLOW=772, PETRI_PLACES=142, PETRI_TRANSITIONS=82} [2023-08-26 22:57:44,536 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 100 predicate places. [2023-08-26 22:57:44,537 INFO L495 AbstractCegarLoop]: Abstraction has has 142 places, 82 transitions, 772 flow [2023-08-26 22:57:44,539 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 238.1875) internal successors, (7622), 32 states have internal predecessors, (7622), 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) [2023-08-26 22:57:44,539 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 22:57:44,539 INFO L208 CegarLoopForPetriNet]: trace histogram [62, 3, 2, 1, 1] [2023-08-26 22:57:44,574 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-08-26 22:57:44,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-08-26 22:57:44,753 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2023-08-26 22:57:44,753 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 22:57:44,753 INFO L85 PathProgramCache]: Analyzing trace with hash 368522317, now seen corresponding path program 5 times [2023-08-26 22:57:44,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 22:57:44,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841818759] [2023-08-26 22:57:44,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 22:57:44,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 22:57:45,301 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-08-26 22:57:45,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [282171373] [2023-08-26 22:57:45,301 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-08-26 22:57:45,301 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 22:57:45,301 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 22:57:45,302 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-26 22:57:45,305 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process Received shutdown request... [2023-08-26 23:10:29,921 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-08-26 23:10:29,921 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-08-26 23:10:31,091 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 [2023-08-26 23:10:31,128 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forcibly destroying the process [2023-08-26 23:10:31,167 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 137 [2023-08-26 23:10:31,167 ERROR L246 FreeRefinementEngine]: Caught known exception: Timeout or Toolchain cancelled by user [2023-08-26 23:10:31,168 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 25 remaining) [2023-08-26 23:10:31,169 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-26 23:10:31,169 WARN L619 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNet was analyzing trace of length 70 with TraceHistMax 62,while AutomatonFreeRefinementEngine was Timeout during CAMEL. [2023-08-26 23:10:31,170 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 25 remaining) [2023-08-26 23:10:31,170 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 25 remaining) [2023-08-26 23:10:31,170 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 25 remaining) [2023-08-26 23:10:31,170 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 25 remaining) [2023-08-26 23:10:31,170 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 25 remaining) [2023-08-26 23:10:31,170 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 25 remaining) [2023-08-26 23:10:31,170 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 25 remaining) [2023-08-26 23:10:31,170 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 25 remaining) [2023-08-26 23:10:31,171 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 25 remaining) [2023-08-26 23:10:31,171 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 25 remaining) [2023-08-26 23:10:31,171 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 25 remaining) [2023-08-26 23:10:31,171 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 25 remaining) [2023-08-26 23:10:31,171 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 25 remaining) [2023-08-26 23:10:31,171 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 25 remaining) [2023-08-26 23:10:31,171 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 25 remaining) [2023-08-26 23:10:31,171 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 25 remaining) [2023-08-26 23:10:31,171 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr4ASSERT_VIOLATIONASSERT (7 of 25 remaining) [2023-08-26 23:10:31,171 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 25 remaining) [2023-08-26 23:10:31,172 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 25 remaining) [2023-08-26 23:10:31,172 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 25 remaining) [2023-08-26 23:10:31,172 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 25 remaining) [2023-08-26 23:10:31,172 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 25 remaining) [2023-08-26 23:10:31,172 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 25 remaining) [2023-08-26 23:10:31,172 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr4ASSERT_VIOLATIONASSERT (0 of 25 remaining) [2023-08-26 23:10:31,172 INFO L445 BasicCegarLoop]: Path program histogram: [5, 3, 1, 1, 1] [2023-08-26 23:10:31,179 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-26 23:10:31,179 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-26 23:10:31,182 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 11:10:31 BasicIcfg [2023-08-26 23:10:31,183 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-26 23:10:31,183 INFO L158 Benchmark]: Toolchain (without parser) took 877362.68ms. Allocated memory was 346.0MB in the beginning and 448.8MB in the end (delta: 102.8MB). Free memory was 320.5MB in the beginning and 285.1MB in the end (delta: 35.4MB). Peak memory consumption was 140.2MB. Max. memory is 16.0GB. [2023-08-26 23:10:31,183 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 346.0MB. Free memory is still 322.4MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-26 23:10:31,184 INFO L158 Benchmark]: CACSL2BoogieTranslator took 688.47ms. Allocated memory is still 346.0MB. Free memory was 320.5MB in the beginning and 289.1MB in the end (delta: 31.5MB). Peak memory consumption was 31.5MB. Max. memory is 16.0GB. [2023-08-26 23:10:31,184 INFO L158 Benchmark]: Boogie Procedure Inliner took 72.60ms. Allocated memory is still 346.0MB. Free memory was 289.1MB in the beginning and 286.2MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-26 23:10:31,184 INFO L158 Benchmark]: Boogie Preprocessor took 51.46ms. Allocated memory is still 346.0MB. Free memory was 286.2MB in the beginning and 283.8MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-26 23:10:31,184 INFO L158 Benchmark]: RCFGBuilder took 638.17ms. Allocated memory is still 346.0MB. Free memory was 283.3MB in the beginning and 307.1MB in the end (delta: -23.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. [2023-08-26 23:10:31,185 INFO L158 Benchmark]: TraceAbstraction took 875907.02ms. Allocated memory was 346.0MB in the beginning and 448.8MB in the end (delta: 102.8MB). Free memory was 307.1MB in the beginning and 285.1MB in the end (delta: 22.0MB). Peak memory consumption was 125.5MB. Max. memory is 16.0GB. [2023-08-26 23:10:31,186 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 346.0MB. Free memory is still 322.4MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 688.47ms. Allocated memory is still 346.0MB. Free memory was 320.5MB in the beginning and 289.1MB in the end (delta: 31.5MB). Peak memory consumption was 31.5MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 72.60ms. Allocated memory is still 346.0MB. Free memory was 289.1MB in the beginning and 286.2MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 51.46ms. Allocated memory is still 346.0MB. Free memory was 286.2MB in the beginning and 283.8MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 638.17ms. Allocated memory is still 346.0MB. Free memory was 283.3MB in the beginning and 307.1MB in the end (delta: -23.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. * TraceAbstraction took 875907.02ms. Allocated memory was 346.0MB in the beginning and 448.8MB in the end (delta: 102.8MB). Free memory was 307.1MB in the beginning and 285.1MB in the end (delta: 22.0MB). Peak memory consumption was 125.5MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 244]: Unsoundness Warning unspecified type, defaulting to int C: short [244] - GenericResultAtLocation [Line: 244]: Unsoundness Warning unspecified type, defaulting to int C: short [244] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 90.4s, 247 PlacesBefore, 42 PlacesAfterwards, 270 TransitionsBefore, 53 TransitionsAfterwards, 5768 CoEnabledTransitionPairs, 7 FixpointIterations, 139 TrivialSequentialCompositions, 111 ConcurrentSequentialCompositions, 8 TrivialYvCompositions, 21 ConcurrentYvCompositions, 12 ChoiceCompositions, 291 TotalNumberOfCompositions, 6319 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5084, independent: 5002, independent conditional: 0, independent unconditional: 5002, dependent: 82, dependent conditional: 0, dependent unconditional: 82, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 3042, independent: 3015, independent conditional: 0, independent unconditional: 3015, dependent: 27, dependent conditional: 0, dependent unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 5084, independent: 1987, independent conditional: 0, independent unconditional: 1987, dependent: 55, dependent conditional: 0, dependent unconditional: 55, unknown: 3042, unknown conditional: 0, unknown unconditional: 3042] , Statistics on independence cache: Total cache size (in pairs): 64, Positive cache size: 57, Positive conditional cache size: 0, Positive unconditional cache size: 57, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - TimeoutResultAtElement [Line: 1067]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 70 with TraceHistMax 62,while AutomatonFreeRefinementEngine was Timeout during CAMEL. - TimeoutResultAtElement [Line: 1067]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 70 with TraceHistMax 62,while AutomatonFreeRefinementEngine was Timeout during CAMEL. - TimeoutResultAtElement [Line: 1064]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 70 with TraceHistMax 62,while AutomatonFreeRefinementEngine was Timeout during CAMEL. - TimeoutResultAtElement [Line: 1064]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 70 with TraceHistMax 62,while AutomatonFreeRefinementEngine was Timeout during CAMEL. - TimeoutResultAtElement [Line: 1067]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 70 with TraceHistMax 62,while AutomatonFreeRefinementEngine was Timeout during CAMEL. - TimeoutResultAtElement [Line: 1067]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 70 with TraceHistMax 62,while AutomatonFreeRefinementEngine was Timeout during CAMEL. - TimeoutResultAtElement [Line: 1072]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 70 with TraceHistMax 62,while AutomatonFreeRefinementEngine was Timeout during CAMEL. - TimeoutResultAtElement [Line: 1073]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 70 with TraceHistMax 62,while AutomatonFreeRefinementEngine was Timeout during CAMEL. - TimeoutResultAtElement [Line: 1072]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 70 with TraceHistMax 62,while AutomatonFreeRefinementEngine was Timeout during CAMEL. - TimeoutResultAtElement [Line: 1073]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 70 with TraceHistMax 62,while AutomatonFreeRefinementEngine was Timeout during CAMEL. - TimeoutResultAtElement [Line: 1072]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was analyzing trace of length 70 with TraceHistMax 62,while AutomatonFreeRefinementEngine was Timeout during CAMEL. - TimeoutResultAtElement [Line: 1058]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 70 with TraceHistMax 62,while AutomatonFreeRefinementEngine was Timeout during CAMEL. - TimeoutResultAtElement [Line: 1058]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 70 with TraceHistMax 62,while AutomatonFreeRefinementEngine was Timeout during CAMEL. - TimeoutResultAtElement [Line: 1053]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 70 with TraceHistMax 62,while AutomatonFreeRefinementEngine was Timeout during CAMEL. - TimeoutResultAtElement [Line: 1053]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 70 with TraceHistMax 62,while AutomatonFreeRefinementEngine was Timeout during CAMEL. - TimeoutResultAtElement [Line: 1053]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 70 with TraceHistMax 62,while AutomatonFreeRefinementEngine was Timeout during CAMEL. - TimeoutResultAtElement [Line: 1053]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 70 with TraceHistMax 62,while AutomatonFreeRefinementEngine was Timeout during CAMEL. - TimeoutResultAtElement [Line: 998]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while CegarLoopForPetriNet was analyzing trace of length 70 with TraceHistMax 62,while AutomatonFreeRefinementEngine was Timeout during CAMEL. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 333 locations, 25 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: 875.7s, OverallIterations: 11, TraceHistogramMax: 62, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 7.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 90.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 240 SdHoareTripleChecker+Valid, 6.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 240 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 6.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 59 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1303 IncrementalHoareTripleChecker+Invalid, 1362 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 59 mSolverCounterUnsat, 0 mSDtfsCounter, 1303 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 231 GetRequests, 129 SyntacticMatches, 16 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 251 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=778occurred in iteration=8, InterpolantAutomatonStates: 104, 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: 1.0s SsaConstructionTime, 2.2s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 146 NumberOfCodeBlocks, 114 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 228 ConstructedInterpolants, 0 QuantifiedInterpolants, 520 SizeOfPredicates, 0 NumberOfNonLiveVariables, 17383 ConjunctsInSsa, 72 ConjunctsInUnsatCore, 15 InterpolantComputations, 5 PerfectInterpolantSequences, 2334/2996 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 RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown