/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_91-arrayloop2_racefree.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-26 22:54:48,845 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-26 22:54:48,897 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 22:54:48,900 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-26 22:54:48,900 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-26 22:54:48,914 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-26 22:54:48,914 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-26 22:54:48,914 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-26 22:54:48,915 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-26 22:54:48,915 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-26 22:54:48,915 INFO L153 SettingsManager]: * Use SBE=true [2023-08-26 22:54:48,915 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-26 22:54:48,916 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-26 22:54:48,916 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-26 22:54:48,916 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-26 22:54:48,916 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-26 22:54:48,916 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-26 22:54:48,917 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-26 22:54:48,917 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-26 22:54:48,917 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-26 22:54:48,917 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-26 22:54:48,920 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-26 22:54:48,920 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-26 22:54:48,921 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-26 22:54:48,923 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-26 22:54:48,923 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-26 22:54:48,923 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-26 22:54:48,923 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 22:54:48,924 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-26 22:54:48,924 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-26 22:54:48,924 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-26 22:54:48,925 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-26 22:54:48,925 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-26 22:54:48,925 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-26 22:54:48,925 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-26 22:54:48,925 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-08-26 22:54:49,162 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-26 22:54:49,179 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-26 22:54:49,181 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-26 22:54:49,181 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-26 22:54:49,182 INFO L274 PluginConnector]: CDTParser initialized [2023-08-26 22:54:49,183 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_91-arrayloop2_racefree.i [2023-08-26 22:54:50,052 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-26 22:54:50,331 INFO L384 CDTParser]: Found 1 translation units. [2023-08-26 22:54:50,332 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_91-arrayloop2_racefree.i [2023-08-26 22:54:50,345 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/afbbc17f8/705d7348f78940f094ff042ae601d1a0/FLAG9c15cc719 [2023-08-26 22:54:50,353 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/afbbc17f8/705d7348f78940f094ff042ae601d1a0 [2023-08-26 22:54:50,354 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-26 22:54:50,355 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-26 22:54:50,356 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-26 22:54:50,356 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-26 22:54:50,357 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-26 22:54:50,358 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 10:54:50" (1/1) ... [2023-08-26 22:54:50,358 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3155a461 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:54:50, skipping insertion in model container [2023-08-26 22:54:50,358 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 10:54:50" (1/1) ... [2023-08-26 22:54:50,388 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-26 22:54:50,688 WARN L1561 CHandler]: Possible shadowing of function new [2023-08-26 22:54:50,689 WARN L1561 CHandler]: Possible shadowing of function new [2023-08-26 22:54:50,689 WARN L1561 CHandler]: Possible shadowing of function new [2023-08-26 22:54:50,689 WARN L1561 CHandler]: Possible shadowing of function new [2023-08-26 22:54:50,714 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 22:54:50,731 INFO L201 MainTranslator]: Completed pre-run [2023-08-26 22:54:50,752 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [244] [2023-08-26 22:54:50,754 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [244] [2023-08-26 22:54:50,774 WARN L1561 CHandler]: Possible shadowing of function new [2023-08-26 22:54:50,774 WARN L1561 CHandler]: Possible shadowing of function new [2023-08-26 22:54:50,775 WARN L1561 CHandler]: Possible shadowing of function new [2023-08-26 22:54:50,775 WARN L1561 CHandler]: Possible shadowing of function new [2023-08-26 22:54:50,787 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 22:54:50,834 INFO L206 MainTranslator]: Completed translation [2023-08-26 22:54:50,835 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:54:50 WrapperNode [2023-08-26 22:54:50,836 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-26 22:54:50,837 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-26 22:54:50,837 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-26 22:54:50,837 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-26 22:54:50,841 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:54:50" (1/1) ... [2023-08-26 22:54:50,866 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:54:50" (1/1) ... [2023-08-26 22:54:50,893 INFO L138 Inliner]: procedures = 277, calls = 46, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 207 [2023-08-26 22:54:50,894 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-26 22:54:50,895 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-26 22:54:50,895 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-26 22:54:50,895 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-26 22:54:50,901 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:54:50" (1/1) ... [2023-08-26 22:54:50,901 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:54:50" (1/1) ... [2023-08-26 22:54:50,916 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:54:50" (1/1) ... [2023-08-26 22:54:50,917 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:54:50" (1/1) ... [2023-08-26 22:54:50,922 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:54:50" (1/1) ... [2023-08-26 22:54:50,925 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:54:50" (1/1) ... [2023-08-26 22:54:50,926 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:54:50" (1/1) ... [2023-08-26 22:54:50,927 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:54:50" (1/1) ... [2023-08-26 22:54:50,943 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-26 22:54:50,943 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-26 22:54:50,943 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-26 22:54:50,943 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-26 22:54:50,944 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:54:50" (1/1) ... [2023-08-26 22:54:50,947 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 22:54:50,959 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 22:54:50,969 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 22:54:50,977 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 22:54:51,014 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-26 22:54:51,015 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-08-26 22:54:51,015 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-26 22:54:51,015 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-26 22:54:51,015 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-26 22:54:51,015 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-26 22:54:51,016 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-26 22:54:51,016 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-26 22:54:51,016 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-26 22:54:51,016 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-26 22:54:51,016 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-26 22:54:51,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-26 22:54:51,017 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-26 22:54:51,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-26 22:54:51,018 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 22:54:51,156 INFO L236 CfgBuilder]: Building ICFG [2023-08-26 22:54:51,158 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-26 22:54:51,426 INFO L277 CfgBuilder]: Performing block encoding [2023-08-26 22:54:51,430 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-26 22:54:51,431 INFO L302 CfgBuilder]: Removed 16 assume(true) statements. [2023-08-26 22:54:51,432 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 10:54:51 BoogieIcfgContainer [2023-08-26 22:54:51,432 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-26 22:54:51,433 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-26 22:54:51,433 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-26 22:54:51,435 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-26 22:54:51,435 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 10:54:50" (1/3) ... [2023-08-26 22:54:51,436 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17508c66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 10:54:51, skipping insertion in model container [2023-08-26 22:54:51,436 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:54:50" (2/3) ... [2023-08-26 22:54:51,436 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17508c66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 10:54:51, skipping insertion in model container [2023-08-26 22:54:51,436 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 10:54:51" (3/3) ... [2023-08-26 22:54:51,437 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_91-arrayloop2_racefree.i [2023-08-26 22:54:51,447 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-26 22:54:51,447 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 17 error locations. [2023-08-26 22:54:51,447 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-26 22:54:51,491 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-26 22:54:51,513 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 202 places, 224 transitions, 456 flow [2023-08-26 22:54:51,570 INFO L124 PetriNetUnfolderBase]: 27/242 cut-off events. [2023-08-26 22:54:51,570 INFO L125 PetriNetUnfolderBase]: For 1/2 co-relation queries the response was YES. [2023-08-26 22:54:51,577 INFO L83 FinitePrefix]: Finished finitePrefix Result has 248 conditions, 242 events. 27/242 cut-off events. For 1/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 734 event pairs, 0 based on Foata normal form. 0/195 useless extension candidates. Maximal degree in co-relation 130. Up to 4 conditions per place. [2023-08-26 22:54:51,577 INFO L82 GeneralOperation]: Start removeDead. Operand has 202 places, 224 transitions, 456 flow [2023-08-26 22:54:51,581 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 200 places, 221 transitions, 450 flow [2023-08-26 22:54:51,583 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 22:54:51,593 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 200 places, 221 transitions, 450 flow [2023-08-26 22:54:51,595 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 200 places, 221 transitions, 450 flow [2023-08-26 22:54:51,595 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 200 places, 221 transitions, 450 flow [2023-08-26 22:54:51,619 INFO L124 PetriNetUnfolderBase]: 26/239 cut-off events. [2023-08-26 22:54:51,619 INFO L125 PetriNetUnfolderBase]: For 1/2 co-relation queries the response was YES. [2023-08-26 22:54:51,620 INFO L83 FinitePrefix]: Finished finitePrefix Result has 245 conditions, 239 events. 26/239 cut-off events. For 1/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 717 event pairs, 0 based on Foata normal form. 0/193 useless extension candidates. Maximal degree in co-relation 130. Up to 4 conditions per place. [2023-08-26 22:54:51,622 INFO L119 LiptonReduction]: Number of co-enabled transitions 5768 [2023-08-26 22:55:09,067 WARN L234 SmtUtils]: Spent 9.88s 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 22:55:14,635 WARN L234 SmtUtils]: Spent 5.56s 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 22:55:26,920 WARN L234 SmtUtils]: Spent 12.28s 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 22:55:33,560 WARN L234 SmtUtils]: Spent 6.64s 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 22:55:43,467 WARN L234 SmtUtils]: Spent 9.90s on a formula simplification. DAG size of input: 189 DAG size of output: 187 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-26 22:55:49,168 WARN L234 SmtUtils]: Spent 5.70s 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 22:55:59,262 WARN L234 SmtUtils]: Spent 10.09s on a formula simplification. DAG size of input: 189 DAG size of output: 187 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-26 22:56:05,172 WARN L234 SmtUtils]: Spent 5.91s 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 22:56:11,616 WARN L234 SmtUtils]: Spent 6.38s on a formula simplification that was a NOOP. DAG size: 182 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-26 22:56:23,011 WARN L234 SmtUtils]: Spent 6.50s on a formula simplification that was a NOOP. DAG size: 182 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-26 22:56:29,762 WARN L234 SmtUtils]: Spent 6.75s 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 22:56:29,847 INFO L134 LiptonReduction]: Checked pairs total: 6602 [2023-08-26 22:56:29,847 INFO L136 LiptonReduction]: Total number of compositions: 236 [2023-08-26 22:56:29,855 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-26 22:56:29,858 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;@7a1055e0, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 22:56:29,858 INFO L358 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2023-08-26 22:56:29,861 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 22:56:29,861 INFO L124 PetriNetUnfolderBase]: 2/5 cut-off events. [2023-08-26 22:56:29,861 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 22:56:29,861 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 22:56:29,861 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-26 22:56:29,861 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 22:56:29,865 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 22:56:29,865 INFO L85 PathProgramCache]: Analyzing trace with hash 912791, now seen corresponding path program 1 times [2023-08-26 22:56:29,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 22:56:29,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128972295] [2023-08-26 22:56:29,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 22:56:29,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 22:56:29,960 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-08-26 22:56:29,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [620846739] [2023-08-26 22:56:29,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 22:56:29,961 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 22:56:29,961 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 22:56:29,963 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 22:56:29,965 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 22:56:30,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 22:56:30,047 INFO L262 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 3 conjunts are in the unsatisfiable core [2023-08-26 22:56:30,049 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 22:56:30,082 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 22:56:30,082 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-26 22:56:30,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 22:56:30,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128972295] [2023-08-26 22:56:30,083 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-08-26 22:56:30,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [620846739] [2023-08-26 22:56:30,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [620846739] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 22:56:30,083 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 22:56:30,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-26 22:56:30,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614062828] [2023-08-26 22:56:30,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 22:56:30,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 22:56:30,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 22:56:30,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 22:56:30,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 22:56:30,108 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 187 out of 460 [2023-08-26 22:56:30,112 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 53 transitions, 114 flow. Second operand has 3 states, 3 states have (on average 188.0) internal successors, (564), 3 states have internal predecessors, (564), 0 states have call successors, (0), 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 22:56:30,112 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 22:56:30,112 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 187 of 460 [2023-08-26 22:56:30,112 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 22:56:30,315 INFO L124 PetriNetUnfolderBase]: 107/244 cut-off events. [2023-08-26 22:56:30,315 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-26 22:56:30,316 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 925 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 22:56:30,317 INFO L140 encePairwiseOnDemand]: 441/460 looper letters, 39 selfloop transitions, 3 changer transitions 0/46 dead transitions. [2023-08-26 22:56:30,317 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 46 transitions, 184 flow [2023-08-26 22:56:30,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 22:56:30,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 22:56:30,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 620 transitions. [2023-08-26 22:56:30,335 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4492753623188406 [2023-08-26 22:56:30,336 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 620 transitions. [2023-08-26 22:56:30,336 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 620 transitions. [2023-08-26 22:56:30,338 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 22:56:30,340 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 620 transitions. [2023-08-26 22:56:30,344 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 206.66666666666666) internal successors, (620), 3 states have internal predecessors, (620), 0 states have call successors, (0), 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 22:56:30,350 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 460.0) internal successors, (1840), 4 states have internal predecessors, (1840), 0 states have call successors, (0), 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 22:56:30,351 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 460.0) internal successors, (1840), 4 states have internal predecessors, (1840), 0 states have call successors, (0), 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 22:56:30,352 INFO L175 Difference]: Start difference. First operand has 42 places, 53 transitions, 114 flow. Second operand 3 states and 620 transitions. [2023-08-26 22:56:30,354 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 46 transitions, 184 flow [2023-08-26 22:56:30,356 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 22:56:30,357 INFO L231 Difference]: Finished difference. Result has 44 places, 44 transitions, 122 flow [2023-08-26 22:56:30,358 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=460, 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 22:56:30,362 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 2 predicate places. [2023-08-26 22:56:30,362 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 44 transitions, 122 flow [2023-08-26 22:56:30,363 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 188.0) internal successors, (564), 3 states have internal predecessors, (564), 0 states have call successors, (0), 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 22:56:30,363 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 22:56:30,363 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-26 22:56:30,370 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-08-26 22:56:30,571 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 22:56:30,572 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 22:56:30,572 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 22:56:30,573 INFO L85 PathProgramCache]: Analyzing trace with hash 912942, now seen corresponding path program 1 times [2023-08-26 22:56:30,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 22:56:30,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861728456] [2023-08-26 22:56:30,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 22:56:30,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 22:56:30,611 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-08-26 22:56:30,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1135413579] [2023-08-26 22:56:30,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 22:56:30,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 22:56:30,612 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 22:56:30,613 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 22:56:30,615 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 22:56:30,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 22:56:30,757 INFO L262 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 3 conjunts are in the unsatisfiable core [2023-08-26 22:56:30,757 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 22:56:30,761 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 22:56:30,761 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-26 22:56:30,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 22:56:30,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861728456] [2023-08-26 22:56:30,761 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-08-26 22:56:30,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1135413579] [2023-08-26 22:56:30,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1135413579] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 22:56:30,762 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 22:56:30,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 22:56:30,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918215846] [2023-08-26 22:56:30,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 22:56:30,762 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 22:56:30,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 22:56:30,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 22:56:30,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 22:56:30,764 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 460 [2023-08-26 22:56:30,764 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 44 transitions, 122 flow. Second operand has 3 states, 3 states have (on average 191.0) internal successors, (573), 3 states have internal predecessors, (573), 0 states have call successors, (0), 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 22:56:30,764 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 22:56:30,764 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 460 [2023-08-26 22:56:30,764 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 22:56:30,855 INFO L124 PetriNetUnfolderBase]: 106/242 cut-off events. [2023-08-26 22:56:30,855 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-26 22:56:30,856 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 920 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 22:56:30,856 INFO L140 encePairwiseOnDemand]: 455/460 looper letters, 33 selfloop transitions, 5 changer transitions 0/42 dead transitions. [2023-08-26 22:56:30,857 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 42 transitions, 188 flow [2023-08-26 22:56:30,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 22:56:30,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 22:56:30,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 608 transitions. [2023-08-26 22:56:30,858 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4405797101449275 [2023-08-26 22:56:30,858 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 608 transitions. [2023-08-26 22:56:30,858 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 608 transitions. [2023-08-26 22:56:30,859 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 22:56:30,859 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 608 transitions. [2023-08-26 22:56:30,860 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 202.66666666666666) internal successors, (608), 3 states have internal predecessors, (608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 22:56:30,862 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 460.0) internal successors, (1840), 4 states have internal predecessors, (1840), 0 states have call successors, (0), 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 22:56:30,862 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 460.0) internal successors, (1840), 4 states have internal predecessors, (1840), 0 states have call successors, (0), 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 22:56:30,863 INFO L175 Difference]: Start difference. First operand has 44 places, 44 transitions, 122 flow. Second operand 3 states and 608 transitions. [2023-08-26 22:56:30,863 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 42 transitions, 188 flow [2023-08-26 22:56:30,863 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 22:56:30,864 INFO L231 Difference]: Finished difference. Result has 43 places, 42 transitions, 118 flow [2023-08-26 22:56:30,864 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=460, 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 22:56:30,865 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 1 predicate places. [2023-08-26 22:56:30,865 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 42 transitions, 118 flow [2023-08-26 22:56:30,865 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 191.0) internal successors, (573), 3 states have internal predecessors, (573), 0 states have call successors, (0), 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 22:56:30,865 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 22:56:30,865 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1] [2023-08-26 22:56:30,872 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 22:56:31,070 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 22:56:31,072 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 22:56:31,072 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 22:56:31,072 INFO L85 PathProgramCache]: Analyzing trace with hash 877354439, now seen corresponding path program 1 times [2023-08-26 22:56:31,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 22:56:31,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724971288] [2023-08-26 22:56:31,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 22:56:31,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 22:56:31,099 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-08-26 22:56:31,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1757153736] [2023-08-26 22:56:31,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 22:56:31,099 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 22:56:31,099 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 22:56:31,100 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 22:56:31,102 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 22:56:31,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 22:56:31,181 INFO L262 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 2 conjunts are in the unsatisfiable core [2023-08-26 22:56:31,181 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 22:56:31,188 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 22:56:31,188 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-26 22:56:31,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 22:56:31,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724971288] [2023-08-26 22:56:31,191 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-08-26 22:56:31,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1757153736] [2023-08-26 22:56:31,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1757153736] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 22:56:31,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 22:56:31,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-26 22:56:31,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300729939] [2023-08-26 22:56:31,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 22:56:31,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 22:56:31,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 22:56:31,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 22:56:31,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 22:56:31,198 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 460 [2023-08-26 22:56:31,198 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 42 transitions, 118 flow. Second operand has 3 states, 3 states have (on average 191.66666666666666) internal successors, (575), 3 states have internal predecessors, (575), 0 states have call successors, (0), 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 22:56:31,198 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 22:56:31,198 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 460 [2023-08-26 22:56:31,198 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 22:56:31,405 INFO L124 PetriNetUnfolderBase]: 106/246 cut-off events. [2023-08-26 22:56:31,405 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-26 22:56:31,405 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 941 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 22:56:31,406 INFO L140 encePairwiseOnDemand]: 455/460 looper letters, 39 selfloop transitions, 2 changer transitions 0/45 dead transitions. [2023-08-26 22:56:31,406 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 45 transitions, 210 flow [2023-08-26 22:56:31,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 22:56:31,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 22:56:31,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 613 transitions. [2023-08-26 22:56:31,408 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44420289855072465 [2023-08-26 22:56:31,408 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 613 transitions. [2023-08-26 22:56:31,408 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 613 transitions. [2023-08-26 22:56:31,408 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 22:56:31,408 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 613 transitions. [2023-08-26 22:56:31,409 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 204.33333333333334) internal successors, (613), 3 states have internal predecessors, (613), 0 states have call successors, (0), 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 22:56:31,411 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 460.0) internal successors, (1840), 4 states have internal predecessors, (1840), 0 states have call successors, (0), 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 22:56:31,412 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 460.0) internal successors, (1840), 4 states have internal predecessors, (1840), 0 states have call successors, (0), 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 22:56:31,412 INFO L175 Difference]: Start difference. First operand has 43 places, 42 transitions, 118 flow. Second operand 3 states and 613 transitions. [2023-08-26 22:56:31,412 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 45 transitions, 210 flow [2023-08-26 22:56:31,413 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 22:56:31,413 INFO L231 Difference]: Finished difference. Result has 44 places, 43 transitions, 126 flow [2023-08-26 22:56:31,413 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=460, 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 22:56:31,414 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 2 predicate places. [2023-08-26 22:56:31,414 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 43 transitions, 126 flow [2023-08-26 22:56:31,414 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 191.66666666666666) internal successors, (575), 3 states have internal predecessors, (575), 0 states have call successors, (0), 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 22:56:31,414 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 22:56:31,415 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2023-08-26 22:56:31,433 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 22:56:31,615 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 22:56:31,615 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 22:56:31,616 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 22:56:31,616 INFO L85 PathProgramCache]: Analyzing trace with hash 1428673729, now seen corresponding path program 1 times [2023-08-26 22:56:31,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 22:56:31,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714432787] [2023-08-26 22:56:31,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 22:56:31,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 22:56:31,647 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-08-26 22:56:31,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1388306542] [2023-08-26 22:56:31,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 22:56:31,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 22:56:31,648 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 22:56:31,652 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 22:56:31,653 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 22:56:31,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 22:56:31,768 INFO L262 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 3 conjunts are in the unsatisfiable core [2023-08-26 22:56:31,769 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 22:56:31,787 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 22:56:31,788 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-26 22:56:31,799 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 22:56:31,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 22:56:31,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714432787] [2023-08-26 22:56:31,799 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-08-26 22:56:31,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1388306542] [2023-08-26 22:56:31,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1388306542] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-26 22:56:31,800 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-08-26 22:56:31,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-08-26 22:56:31,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296695919] [2023-08-26 22:56:31,800 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-08-26 22:56:31,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 22:56:31,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 22:56:31,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 22:56:31,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-26 22:56:31,801 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 460 [2023-08-26 22:56:31,802 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 43 transitions, 126 flow. Second operand has 6 states, 6 states have (on average 191.5) internal successors, (1149), 6 states have internal predecessors, (1149), 0 states have call successors, (0), 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 22:56:31,802 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 22:56:31,803 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 460 [2023-08-26 22:56:31,803 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 22:56:32,059 INFO L124 PetriNetUnfolderBase]: 108/258 cut-off events. [2023-08-26 22:56:32,059 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-26 22:56:32,060 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 1005 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 22:56:32,061 INFO L140 encePairwiseOnDemand]: 453/460 looper letters, 43 selfloop transitions, 7 changer transitions 0/54 dead transitions. [2023-08-26 22:56:32,061 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 54 transitions, 270 flow [2023-08-26 22:56:32,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 22:56:32,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 22:56:32,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1198 transitions. [2023-08-26 22:56:32,064 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4340579710144927 [2023-08-26 22:56:32,064 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1198 transitions. [2023-08-26 22:56:32,064 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1198 transitions. [2023-08-26 22:56:32,064 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 22:56:32,064 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1198 transitions. [2023-08-26 22:56:32,066 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 199.66666666666666) internal successors, (1198), 6 states have internal predecessors, (1198), 0 states have call successors, (0), 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 22:56:32,069 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 460.0) internal successors, (3220), 7 states have internal predecessors, (3220), 0 states have call successors, (0), 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 22:56:32,070 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 460.0) internal successors, (3220), 7 states have internal predecessors, (3220), 0 states have call successors, (0), 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 22:56:32,071 INFO L175 Difference]: Start difference. First operand has 44 places, 43 transitions, 126 flow. Second operand 6 states and 1198 transitions. [2023-08-26 22:56:32,071 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 54 transitions, 270 flow [2023-08-26 22:56:32,071 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 22:56:32,072 INFO L231 Difference]: Finished difference. Result has 52 places, 48 transitions, 200 flow [2023-08-26 22:56:32,072 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=460, 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 22:56:32,073 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 10 predicate places. [2023-08-26 22:56:32,073 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 48 transitions, 200 flow [2023-08-26 22:56:32,073 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 191.5) internal successors, (1149), 6 states have internal predecessors, (1149), 0 states have call successors, (0), 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 22:56:32,073 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 22:56:32,074 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 2, 1, 1, 1] [2023-08-26 22:56:32,083 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 22:56:32,278 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 22:56:32,279 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 22:56:32,279 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 22:56:32,279 INFO L85 PathProgramCache]: Analyzing trace with hash -1020375993, now seen corresponding path program 2 times [2023-08-26 22:56:32,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 22:56:32,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963214451] [2023-08-26 22:56:32,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 22:56:32,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 22:56:32,337 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-08-26 22:56:32,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1317969662] [2023-08-26 22:56:32,338 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-26 22:56:32,338 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 22:56:32,338 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 22:56:32,350 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 22:56:32,353 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 22:56:32,518 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-08-26 22:56:32,518 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-26 22:56:32,519 INFO L262 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 3 conjunts are in the unsatisfiable core [2023-08-26 22:56:32,521 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 22:56:32,526 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 22:56:32,526 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-26 22:56:32,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 22:56:32,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963214451] [2023-08-26 22:56:32,526 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-08-26 22:56:32,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1317969662] [2023-08-26 22:56:32,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1317969662] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 22:56:32,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 22:56:32,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 22:56:32,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240759962] [2023-08-26 22:56:32,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 22:56:32,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 22:56:32,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 22:56:32,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 22:56:32,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 22:56:32,533 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 460 [2023-08-26 22:56:32,534 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 48 transitions, 200 flow. Second operand has 3 states, 3 states have (on average 192.0) internal successors, (576), 3 states have internal predecessors, (576), 0 states have call successors, (0), 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 22:56:32,534 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 22:56:32,534 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 460 [2023-08-26 22:56:32,534 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 22:56:32,689 INFO L124 PetriNetUnfolderBase]: 108/256 cut-off events. [2023-08-26 22:56:32,689 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2023-08-26 22:56:32,691 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 990 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 22:56:32,691 INFO L140 encePairwiseOnDemand]: 456/460 looper letters, 42 selfloop transitions, 2 changer transitions 0/48 dead transitions. [2023-08-26 22:56:32,691 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 48 transitions, 288 flow [2023-08-26 22:56:32,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 22:56:32,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 22:56:32,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 610 transitions. [2023-08-26 22:56:32,693 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4420289855072464 [2023-08-26 22:56:32,693 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 610 transitions. [2023-08-26 22:56:32,693 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 610 transitions. [2023-08-26 22:56:32,694 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 22:56:32,694 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 610 transitions. [2023-08-26 22:56:32,695 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 203.33333333333334) internal successors, (610), 3 states have internal predecessors, (610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 22:56:32,697 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 460.0) internal successors, (1840), 4 states have internal predecessors, (1840), 0 states have call successors, (0), 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 22:56:32,697 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 460.0) internal successors, (1840), 4 states have internal predecessors, (1840), 0 states have call successors, (0), 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 22:56:32,697 INFO L175 Difference]: Start difference. First operand has 52 places, 48 transitions, 200 flow. Second operand 3 states and 610 transitions. [2023-08-26 22:56:32,697 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 48 transitions, 288 flow [2023-08-26 22:56:32,701 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 22:56:32,702 INFO L231 Difference]: Finished difference. Result has 54 places, 48 transitions, 200 flow [2023-08-26 22:56:32,702 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=460, 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 22:56:32,704 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 12 predicate places. [2023-08-26 22:56:32,704 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 48 transitions, 200 flow [2023-08-26 22:56:32,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 192.0) internal successors, (576), 3 states have internal predecessors, (576), 0 states have call successors, (0), 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 22:56:32,705 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 22:56:32,705 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 2, 1, 1, 1] [2023-08-26 22:56:32,710 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 22:56:32,909 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 22:56:32,911 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 22:56:32,912 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 22:56:32,912 INFO L85 PathProgramCache]: Analyzing trace with hash -1566880275, now seen corresponding path program 3 times [2023-08-26 22:56:32,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 22:56:32,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616075105] [2023-08-26 22:56:32,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 22:56:32,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 22:56:32,959 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-08-26 22:56:32,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2009081659] [2023-08-26 22:56:32,959 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-08-26 22:56:32,959 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 22:56:32,959 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 22:56:32,960 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 22:56:32,962 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 22:56:33,201 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-08-26 22:56:33,202 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-26 22:56:33,204 INFO L262 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 9 conjunts are in the unsatisfiable core [2023-08-26 22:56:33,207 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 22:56:33,234 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 22:56:33,235 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-26 22:56:33,416 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 22:56:33,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 22:56:33,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616075105] [2023-08-26 22:56:33,416 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-08-26 22:56:33,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2009081659] [2023-08-26 22:56:33,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2009081659] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-26 22:56:33,416 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-08-26 22:56:33,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 8 [2023-08-26 22:56:33,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353542430] [2023-08-26 22:56:33,417 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-08-26 22:56:33,417 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-26 22:56:33,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 22:56:33,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-26 22:56:33,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2023-08-26 22:56:33,418 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 460 [2023-08-26 22:56:33,420 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 48 transitions, 200 flow. Second operand has 10 states, 10 states have (on average 182.4) internal successors, (1824), 10 states have internal predecessors, (1824), 0 states have call successors, (0), 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 22:56:33,420 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 22:56:33,420 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 460 [2023-08-26 22:56:33,420 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 22:56:34,181 INFO L124 PetriNetUnfolderBase]: 111/266 cut-off events. [2023-08-26 22:56:34,181 INFO L125 PetriNetUnfolderBase]: For 55/55 co-relation queries the response was YES. [2023-08-26 22:56:34,181 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 975 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 22:56:34,182 INFO L140 encePairwiseOnDemand]: 451/460 looper letters, 45 selfloop transitions, 16 changer transitions 0/65 dead transitions. [2023-08-26 22:56:34,182 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 65 transitions, 439 flow [2023-08-26 22:56:34,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-26 22:56:34,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-26 22:56:34,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2049 transitions. [2023-08-26 22:56:34,186 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4049407114624506 [2023-08-26 22:56:34,186 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2049 transitions. [2023-08-26 22:56:34,186 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2049 transitions. [2023-08-26 22:56:34,187 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 22:56:34,187 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2049 transitions. [2023-08-26 22:56:34,190 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 186.27272727272728) internal successors, (2049), 11 states have internal predecessors, (2049), 0 states have call successors, (0), 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 22:56:34,194 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 460.0) internal successors, (5520), 12 states have internal predecessors, (5520), 0 states have call successors, (0), 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 22:56:34,194 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 460.0) internal successors, (5520), 12 states have internal predecessors, (5520), 0 states have call successors, (0), 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 22:56:34,195 INFO L175 Difference]: Start difference. First operand has 54 places, 48 transitions, 200 flow. Second operand 11 states and 2049 transitions. [2023-08-26 22:56:34,195 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 65 transitions, 439 flow [2023-08-26 22:56:34,195 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 22:56:34,196 INFO L231 Difference]: Finished difference. Result has 65 places, 59 transitions, 333 flow [2023-08-26 22:56:34,196 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=460, 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 22:56:34,197 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 23 predicate places. [2023-08-26 22:56:34,197 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 59 transitions, 333 flow [2023-08-26 22:56:34,198 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 182.4) internal successors, (1824), 10 states have internal predecessors, (1824), 0 states have call successors, (0), 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 22:56:34,198 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 22:56:34,198 INFO L208 CegarLoopForPetriNet]: trace histogram [6, 2, 1, 1, 1] [2023-08-26 22:56:34,203 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 22:56:34,403 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 22:56:34,403 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 22:56:34,403 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 22:56:34,403 INFO L85 PathProgramCache]: Analyzing trace with hash -1328643871, now seen corresponding path program 1 times [2023-08-26 22:56:34,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 22:56:34,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205984693] [2023-08-26 22:56:34,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 22:56:34,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 22:56:34,456 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-08-26 22:56:34,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1558130787] [2023-08-26 22:56:34,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 22:56:34,456 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 22:56:34,456 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 22:56:34,457 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 22:56:34,459 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 22:56:34,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 22:56:34,866 INFO L262 TraceCheckSpWp]: Trace formula consists of 1536 conjuncts, 6 conjunts are in the unsatisfiable core [2023-08-26 22:56:34,868 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 22:56:34,890 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 22:56:34,890 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-26 22:56:34,933 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 22:56:34,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 22:56:34,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205984693] [2023-08-26 22:56:34,934 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-08-26 22:56:34,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1558130787] [2023-08-26 22:56:34,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1558130787] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-26 22:56:34,934 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-08-26 22:56:34,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2023-08-26 22:56:34,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085588820] [2023-08-26 22:56:34,934 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-08-26 22:56:34,935 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-26 22:56:34,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 22:56:34,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-26 22:56:34,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2023-08-26 22:56:34,937 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 460 [2023-08-26 22:56:34,938 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 59 transitions, 333 flow. Second operand has 12 states, 12 states have (on average 191.33333333333334) internal successors, (2296), 12 states have internal predecessors, (2296), 0 states have call successors, (0), 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 22:56:34,938 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 22:56:34,938 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 460 [2023-08-26 22:56:34,938 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 22:56:35,601 INFO L124 PetriNetUnfolderBase]: 111/302 cut-off events. [2023-08-26 22:56:35,601 INFO L125 PetriNetUnfolderBase]: For 434/434 co-relation queries the response was YES. [2023-08-26 22:56:35,602 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 1195 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 22:56:35,603 INFO L140 encePairwiseOnDemand]: 454/460 looper letters, 61 selfloop transitions, 21 changer transitions 0/86 dead transitions. [2023-08-26 22:56:35,603 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 86 transitions, 754 flow [2023-08-26 22:56:35,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-26 22:56:35,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-26 22:56:35,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2355 transitions. [2023-08-26 22:56:35,607 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4266304347826087 [2023-08-26 22:56:35,607 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 2355 transitions. [2023-08-26 22:56:35,607 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 2355 transitions. [2023-08-26 22:56:35,608 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 22:56:35,608 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 2355 transitions. [2023-08-26 22:56:35,612 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 196.25) internal successors, (2355), 12 states have internal predecessors, (2355), 0 states have call successors, (0), 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 22:56:35,616 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 460.0) internal successors, (5980), 13 states have internal predecessors, (5980), 0 states have call successors, (0), 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 22:56:35,617 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 460.0) internal successors, (5980), 13 states have internal predecessors, (5980), 0 states have call successors, (0), 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 22:56:35,617 INFO L175 Difference]: Start difference. First operand has 65 places, 59 transitions, 333 flow. Second operand 12 states and 2355 transitions. [2023-08-26 22:56:35,617 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 86 transitions, 754 flow [2023-08-26 22:56:35,619 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 22:56:35,621 INFO L231 Difference]: Finished difference. Result has 81 places, 68 transitions, 500 flow [2023-08-26 22:56:35,621 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=460, 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 22:56:35,621 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 39 predicate places. [2023-08-26 22:56:35,621 INFO L495 AbstractCegarLoop]: Abstraction has has 81 places, 68 transitions, 500 flow [2023-08-26 22:56:35,622 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 191.33333333333334) internal successors, (2296), 12 states have internal predecessors, (2296), 0 states have call successors, (0), 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 22:56:35,622 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 22:56:35,622 INFO L208 CegarLoopForPetriNet]: trace histogram [12, 2, 1, 1, 1] [2023-08-26 22:56:35,630 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 22:56:35,829 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 22:56:35,829 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 22:56:35,830 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 22:56:35,830 INFO L85 PathProgramCache]: Analyzing trace with hash 2136301217, now seen corresponding path program 2 times [2023-08-26 22:56:35,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 22:56:35,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301521522] [2023-08-26 22:56:35,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 22:56:35,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 22:56:35,925 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-08-26 22:56:35,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [149896674] [2023-08-26 22:56:35,926 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-26 22:56:35,926 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 22:56:35,926 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 22:56:35,953 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 22:56:35,981 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 22:56:36,641 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-08-26 22:56:36,641 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-26 22:56:36,653 INFO L262 TraceCheckSpWp]: Trace formula consists of 2940 conjuncts, 12 conjunts are in the unsatisfiable core [2023-08-26 22:56:36,657 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 22:56:36,726 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 22:56:36,726 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-26 22:56:36,867 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 22:56:36,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 22:56:36,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301521522] [2023-08-26 22:56:36,868 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-08-26 22:56:36,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [149896674] [2023-08-26 22:56:36,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [149896674] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-26 22:56:36,868 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-08-26 22:56:36,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24 [2023-08-26 22:56:36,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722972061] [2023-08-26 22:56:36,868 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-08-26 22:56:36,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-08-26 22:56:36,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 22:56:36,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-08-26 22:56:36,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2023-08-26 22:56:36,871 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 460 [2023-08-26 22:56:36,873 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 68 transitions, 500 flow. Second operand has 24 states, 24 states have (on average 191.16666666666666) internal successors, (4588), 24 states have internal predecessors, (4588), 0 states have call successors, (0), 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 22:56:36,873 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 22:56:36,873 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 460 [2023-08-26 22:56:36,873 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 22:56:38,268 INFO L124 PetriNetUnfolderBase]: 111/374 cut-off events. [2023-08-26 22:56:38,268 INFO L125 PetriNetUnfolderBase]: For 3092/3092 co-relation queries the response was YES. [2023-08-26 22:56:38,269 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 1373 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 22:56:38,270 INFO L140 encePairwiseOnDemand]: 454/460 looper letters, 97 selfloop transitions, 33 changer transitions 0/134 dead transitions. [2023-08-26 22:56:38,271 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 134 transitions, 1590 flow [2023-08-26 22:56:38,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-08-26 22:56:38,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2023-08-26 22:56:38,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 4683 transitions. [2023-08-26 22:56:38,278 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42418478260869563 [2023-08-26 22:56:38,278 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 4683 transitions. [2023-08-26 22:56:38,278 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 4683 transitions. [2023-08-26 22:56:38,279 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 22:56:38,280 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 4683 transitions. [2023-08-26 22:56:38,286 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 195.125) internal successors, (4683), 24 states have internal predecessors, (4683), 0 states have call successors, (0), 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 22:56:38,294 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 460.0) internal successors, (11500), 25 states have internal predecessors, (11500), 0 states have call successors, (0), 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 22:56:38,295 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 460.0) internal successors, (11500), 25 states have internal predecessors, (11500), 0 states have call successors, (0), 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 22:56:38,296 INFO L175 Difference]: Start difference. First operand has 81 places, 68 transitions, 500 flow. Second operand 24 states and 4683 transitions. [2023-08-26 22:56:38,296 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 134 transitions, 1590 flow [2023-08-26 22:56:38,300 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 22:56:38,301 INFO L231 Difference]: Finished difference. Result has 113 places, 83 transitions, 778 flow [2023-08-26 22:56:38,301 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=460, 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 22:56:38,302 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 71 predicate places. [2023-08-26 22:56:38,302 INFO L495 AbstractCegarLoop]: Abstraction has has 113 places, 83 transitions, 778 flow [2023-08-26 22:56:38,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 191.16666666666666) internal successors, (4588), 24 states have internal predecessors, (4588), 0 states have call successors, (0), 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 22:56:38,303 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 22:56:38,303 INFO L208 CegarLoopForPetriNet]: trace histogram [24, 2, 1, 1, 1] [2023-08-26 22:56:38,312 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 22:56:38,512 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 22:56:38,513 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 22:56:38,513 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 22:56:38,513 INFO L85 PathProgramCache]: Analyzing trace with hash 1939286561, now seen corresponding path program 3 times [2023-08-26 22:56:38,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 22:56:38,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307320169] [2023-08-26 22:56:38,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 22:56:38,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 22:56:38,732 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-08-26 22:56:38,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1170747728] [2023-08-26 22:56:38,733 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-08-26 22:56:38,733 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 22:56:38,733 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 22:56:38,739 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 22:56:38,740 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 22:56:39,487 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-08-26 22:56:39,487 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-26 22:56:39,492 INFO L262 TraceCheckSpWp]: Trace formula consists of 600 conjuncts, 7 conjunts are in the unsatisfiable core [2023-08-26 22:56:39,495 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 22:56:39,545 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 22:56:39,545 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-26 22:56:39,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 22:56:39,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307320169] [2023-08-26 22:56:39,546 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-08-26 22:56:39,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1170747728] [2023-08-26 22:56:39,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1170747728] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 22:56:39,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 22:56:39,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-26 22:56:39,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917004179] [2023-08-26 22:56:39,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 22:56:39,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-26 22:56:39,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 22:56:39,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-26 22:56:39,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-08-26 22:56:39,547 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 460 [2023-08-26 22:56:39,548 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 83 transitions, 778 flow. Second operand has 7 states, 7 states have (on average 182.14285714285714) internal successors, (1275), 7 states have internal predecessors, (1275), 0 states have call successors, (0), 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 22:56:39,548 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 22:56:39,548 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 460 [2023-08-26 22:56:39,548 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 22:56:40,001 INFO L124 PetriNetUnfolderBase]: 109/330 cut-off events. [2023-08-26 22:56:40,001 INFO L125 PetriNetUnfolderBase]: For 1638/1638 co-relation queries the response was YES. [2023-08-26 22:56:40,002 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 1144 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 22:56:40,003 INFO L140 encePairwiseOnDemand]: 453/460 looper letters, 77 selfloop transitions, 13 changer transitions 0/94 dead transitions. [2023-08-26 22:56:40,003 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 94 transitions, 1002 flow [2023-08-26 22:56:40,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-26 22:56:40,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-26 22:56:40,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1309 transitions. [2023-08-26 22:56:40,006 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40652173913043477 [2023-08-26 22:56:40,006 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1309 transitions. [2023-08-26 22:56:40,006 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1309 transitions. [2023-08-26 22:56:40,006 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 22:56:40,006 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1309 transitions. [2023-08-26 22:56:40,008 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 187.0) internal successors, (1309), 7 states have internal predecessors, (1309), 0 states have call successors, (0), 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 22:56:40,011 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 460.0) internal successors, (3680), 8 states have internal predecessors, (3680), 0 states have call successors, (0), 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 22:56:40,011 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 460.0) internal successors, (3680), 8 states have internal predecessors, (3680), 0 states have call successors, (0), 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 22:56:40,011 INFO L175 Difference]: Start difference. First operand has 113 places, 83 transitions, 778 flow. Second operand 7 states and 1309 transitions. [2023-08-26 22:56:40,011 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 94 transitions, 1002 flow [2023-08-26 22:56:40,016 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 22:56:40,018 INFO L231 Difference]: Finished difference. Result has 106 places, 73 transitions, 571 flow [2023-08-26 22:56:40,018 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=460, 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 22:56:40,018 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 64 predicate places. [2023-08-26 22:56:40,018 INFO L495 AbstractCegarLoop]: Abstraction has has 106 places, 73 transitions, 571 flow [2023-08-26 22:56:40,019 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 182.14285714285714) internal successors, (1275), 7 states have internal predecessors, (1275), 0 states have call successors, (0), 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 22:56:40,019 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 22:56:40,019 INFO L208 CegarLoopForPetriNet]: trace histogram [46, 3, 2, 1, 1] [2023-08-26 22:56:40,036 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 22:56:40,226 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 22:56:40,226 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 22:56:40,226 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 22:56:40,226 INFO L85 PathProgramCache]: Analyzing trace with hash 306313617, now seen corresponding path program 4 times [2023-08-26 22:56:40,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 22:56:40,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245488127] [2023-08-26 22:56:40,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 22:56:40,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 22:56:40,557 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-08-26 22:56:40,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [594978203] [2023-08-26 22:56:40,557 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-08-26 22:56:40,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 22:56:40,558 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 22:56:40,562 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 22:56:40,563 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 22:56:42,925 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-08-26 22:56:42,925 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-26 22:56:42,973 INFO L262 TraceCheckSpWp]: Trace formula consists of 10936 conjuncts, 24 conjunts are in the unsatisfiable core [2023-08-26 22:56:42,981 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 22:56:43,197 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 22:56:43,197 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-26 22:56:43,588 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 22:56:43,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 22:56:43,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245488127] [2023-08-26 22:56:43,589 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-08-26 22:56:43,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [594978203] [2023-08-26 22:56:43,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [594978203] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-26 22:56:43,589 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-08-26 22:56:43,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25] total 32 [2023-08-26 22:56:43,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053473671] [2023-08-26 22:56:43,589 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-08-26 22:56:43,589 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-08-26 22:56:43,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 22:56:43,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-08-26 22:56:43,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=496, Invalid=496, Unknown=0, NotChecked=0, Total=992 [2023-08-26 22:56:43,592 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 460 [2023-08-26 22:56:43,595 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 73 transitions, 571 flow. Second operand has 32 states, 32 states have (on average 191.1875) internal successors, (6118), 32 states have internal predecessors, (6118), 0 states have call successors, (0), 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 22:56:43,595 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 22:56:43,595 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 460 [2023-08-26 22:56:43,595 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 22:56:45,042 INFO L124 PetriNetUnfolderBase]: 109/362 cut-off events. [2023-08-26 22:56:45,042 INFO L125 PetriNetUnfolderBase]: For 7086/7086 co-relation queries the response was YES. [2023-08-26 22:56:45,043 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 1164 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 22:56:45,045 INFO L140 encePairwiseOnDemand]: 456/460 looper letters, 63 selfloop transitions, 39 changer transitions 0/106 dead transitions. [2023-08-26 22:56:45,045 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 106 transitions, 1174 flow [2023-08-26 22:56:45,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-08-26 22:56:45,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2023-08-26 22:56:45,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 6180 transitions. [2023-08-26 22:56:45,054 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41983695652173914 [2023-08-26 22:56:45,054 INFO L72 ComplementDD]: Start complementDD. Operand 32 states and 6180 transitions. [2023-08-26 22:56:45,054 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 6180 transitions. [2023-08-26 22:56:45,057 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 22:56:45,057 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 32 states and 6180 transitions. [2023-08-26 22:56:45,064 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 33 states, 32 states have (on average 193.125) internal successors, (6180), 32 states have internal predecessors, (6180), 0 states have call successors, (0), 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 22:56:45,075 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 33 states, 33 states have (on average 460.0) internal successors, (15180), 33 states have internal predecessors, (15180), 0 states have call successors, (0), 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 22:56:45,076 INFO L81 ComplementDD]: Finished complementDD. Result has 33 states, 33 states have (on average 460.0) internal successors, (15180), 33 states have internal predecessors, (15180), 0 states have call successors, (0), 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 22:56:45,076 INFO L175 Difference]: Start difference. First operand has 106 places, 73 transitions, 571 flow. Second operand 32 states and 6180 transitions. [2023-08-26 22:56:45,077 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 106 transitions, 1174 flow [2023-08-26 22:56:45,083 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 22:56:45,084 INFO L231 Difference]: Finished difference. Result has 142 places, 82 transitions, 772 flow [2023-08-26 22:56:45,085 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=460, 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 22:56:45,086 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 100 predicate places. [2023-08-26 22:56:45,086 INFO L495 AbstractCegarLoop]: Abstraction has has 142 places, 82 transitions, 772 flow [2023-08-26 22:56:45,087 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 191.1875) internal successors, (6118), 32 states have internal predecessors, (6118), 0 states have call successors, (0), 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 22:56:45,087 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 22:56:45,087 INFO L208 CegarLoopForPetriNet]: trace histogram [60, 2, 2, 1, 1, 1, 1, 1] [2023-08-26 22:56:45,115 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 22:56:45,293 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 22:56:45,293 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2023-08-26 22:56:45,293 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 22:56:45,293 INFO L85 PathProgramCache]: Analyzing trace with hash 2043127643, now seen corresponding path program 1 times [2023-08-26 22:56:45,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 22:56:45,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132462590] [2023-08-26 22:56:45,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 22:56:45,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 22:56:45,693 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-08-26 22:56:45,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2546065] [2023-08-26 22:56:45,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 22:56:45,693 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 22:56:45,693 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 22:56:45,694 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 22:56:45,696 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-08-26 22:56:49,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 22:56:49,076 INFO L262 TraceCheckSpWp]: Trace formula consists of 14216 conjuncts, 4 conjunts are in the unsatisfiable core [2023-08-26 22:56:49,083 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 22:56:49,151 INFO L134 CoverageAnalysis]: Checked inductivity of 1894 backedges. 0 proven. 964 refuted. 0 times theorem prover too weak. 930 trivial. 0 not checked. [2023-08-26 22:56:49,151 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-26 22:56:49,228 INFO L134 CoverageAnalysis]: Checked inductivity of 1894 backedges. 0 proven. 964 refuted. 0 times theorem prover too weak. 930 trivial. 0 not checked. [2023-08-26 22:56:49,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 22:56:49,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132462590] [2023-08-26 22:56:49,228 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-08-26 22:56:49,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2546065] [2023-08-26 22:56:49,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2546065] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-26 22:56:49,228 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-08-26 22:56:49,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-08-26 22:56:49,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790377718] [2023-08-26 22:56:49,229 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-08-26 22:56:49,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-26 22:56:49,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 22:56:49,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-26 22:56:49,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-08-26 22:56:49,230 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 187 out of 460 [2023-08-26 22:56:49,230 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 82 transitions, 772 flow. Second operand has 8 states, 8 states have (on average 189.375) internal successors, (1515), 8 states have internal predecessors, (1515), 0 states have call successors, (0), 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 22:56:49,231 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 22:56:49,231 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 187 of 460 [2023-08-26 22:56:49,231 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 22:56:49,708 INFO L124 PetriNetUnfolderBase]: 198/547 cut-off events. [2023-08-26 22:56:49,709 INFO L125 PetriNetUnfolderBase]: For 4528/4528 co-relation queries the response was YES. [2023-08-26 22:56:49,710 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2746 conditions, 547 events. 198/547 cut-off events. For 4528/4528 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1026 event pairs, 85 based on Foata normal form. 4/441 useless extension candidates. Maximal degree in co-relation 2387. Up to 213 conditions per place. [2023-08-26 22:56:49,712 INFO L140 encePairwiseOnDemand]: 455/460 looper letters, 221 selfloop transitions, 28 changer transitions 0/253 dead transitions. [2023-08-26 22:56:49,712 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 253 transitions, 3251 flow [2023-08-26 22:56:49,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-26 22:56:49,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-26 22:56:49,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1553 transitions. [2023-08-26 22:56:49,714 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4220108695652174 [2023-08-26 22:56:49,714 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1553 transitions. [2023-08-26 22:56:49,714 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1553 transitions. [2023-08-26 22:56:49,714 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 22:56:49,714 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1553 transitions. [2023-08-26 22:56:49,716 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 194.125) internal successors, (1553), 8 states have internal predecessors, (1553), 0 states have call successors, (0), 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 22:56:49,718 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 460.0) internal successors, (4140), 9 states have internal predecessors, (4140), 0 states have call successors, (0), 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 22:56:49,719 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 460.0) internal successors, (4140), 9 states have internal predecessors, (4140), 0 states have call successors, (0), 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 22:56:49,719 INFO L175 Difference]: Start difference. First operand has 142 places, 82 transitions, 772 flow. Second operand 8 states and 1553 transitions. [2023-08-26 22:56:49,719 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 253 transitions, 3251 flow [2023-08-26 22:56:49,730 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 253 transitions, 2870 flow, removed 54 selfloop flow, removed 22 redundant places. [2023-08-26 22:56:49,733 INFO L231 Difference]: Finished difference. Result has 131 places, 100 transitions, 1221 flow [2023-08-26 22:56:49,733 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=460, PETRI_DIFFERENCE_MINUEND_FLOW=693, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1221, PETRI_PLACES=131, PETRI_TRANSITIONS=100} [2023-08-26 22:56:49,733 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 89 predicate places. [2023-08-26 22:56:49,733 INFO L495 AbstractCegarLoop]: Abstraction has has 131 places, 100 transitions, 1221 flow [2023-08-26 22:56:49,734 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 189.375) internal successors, (1515), 8 states have internal predecessors, (1515), 0 states have call successors, (0), 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 22:56:49,734 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 22:56:49,734 INFO L208 CegarLoopForPetriNet]: trace histogram [62, 3, 2, 1, 1] [2023-08-26 22:56:49,772 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-08-26 22:56:49,945 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-08-26 22:56:49,945 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2023-08-26 22:56:49,945 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 22:56:49,945 INFO L85 PathProgramCache]: Analyzing trace with hash 2044610961, now seen corresponding path program 5 times [2023-08-26 22:56:49,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 22:56:49,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364126415] [2023-08-26 22:56:49,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 22:56:49,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 22:56:50,437 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-08-26 22:56:50,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [330098197] [2023-08-26 22:56:50,437 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-08-26 22:56:50,438 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 22:56:50,438 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 22:56:50,438 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-26 22:56:50,440 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process Received shutdown request... [2023-08-26 23:09:32,423 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 23:09:32,424 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-08-26 23:09:33,565 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 23:09:33,633 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forcibly destroying the process [2023-08-26 23:09:33,670 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 137 [2023-08-26 23:09:33,671 ERROR L246 FreeRefinementEngine]: Caught known exception: Timeout or Toolchain cancelled by user [2023-08-26 23:09:33,672 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 25 remaining) [2023-08-26 23:09:33,672 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-26 23:09:33,672 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 23:09:33,673 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 25 remaining) [2023-08-26 23:09:33,673 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 25 remaining) [2023-08-26 23:09:33,673 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 25 remaining) [2023-08-26 23:09:33,673 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 25 remaining) [2023-08-26 23:09:33,673 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 25 remaining) [2023-08-26 23:09:33,673 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 25 remaining) [2023-08-26 23:09:33,673 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 25 remaining) [2023-08-26 23:09:33,673 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 25 remaining) [2023-08-26 23:09:33,673 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 25 remaining) [2023-08-26 23:09:33,673 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 25 remaining) [2023-08-26 23:09:33,673 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 25 remaining) [2023-08-26 23:09:33,674 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 25 remaining) [2023-08-26 23:09:33,674 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 25 remaining) [2023-08-26 23:09:33,674 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 25 remaining) [2023-08-26 23:09:33,674 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 25 remaining) [2023-08-26 23:09:33,674 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 25 remaining) [2023-08-26 23:09:33,674 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr4ASSERT_VIOLATIONASSERT (7 of 25 remaining) [2023-08-26 23:09:33,674 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 25 remaining) [2023-08-26 23:09:33,674 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 25 remaining) [2023-08-26 23:09:33,674 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 25 remaining) [2023-08-26 23:09:33,674 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 25 remaining) [2023-08-26 23:09:33,674 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 25 remaining) [2023-08-26 23:09:33,674 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 25 remaining) [2023-08-26 23:09:33,674 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr4ASSERT_VIOLATIONASSERT (0 of 25 remaining) [2023-08-26 23:09:33,674 INFO L445 BasicCegarLoop]: Path program histogram: [5, 3, 1, 1, 1, 1] [2023-08-26 23:09:33,677 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-26 23:09:33,677 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-26 23:09:33,679 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 11:09:33 BasicIcfg [2023-08-26 23:09:33,680 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-26 23:09:33,680 INFO L158 Benchmark]: Toolchain (without parser) took 883324.90ms. Allocated memory was 390.1MB in the beginning and 509.6MB in the end (delta: 119.5MB). Free memory was 364.4MB in the beginning and 187.2MB in the end (delta: 177.2MB). Peak memory consumption was 299.3MB. Max. memory is 16.0GB. [2023-08-26 23:09:33,680 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 390.1MB. Free memory is still 367.0MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-26 23:09:33,680 INFO L158 Benchmark]: CACSL2BoogieTranslator took 480.52ms. Allocated memory is still 390.1MB. Free memory was 364.4MB in the beginning and 333.7MB in the end (delta: 30.7MB). Peak memory consumption was 31.5MB. Max. memory is 16.0GB. [2023-08-26 23:09:33,680 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.39ms. Allocated memory is still 390.1MB. Free memory was 333.7MB in the beginning and 330.9MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-26 23:09:33,681 INFO L158 Benchmark]: Boogie Preprocessor took 47.88ms. Allocated memory is still 390.1MB. Free memory was 330.9MB in the beginning and 328.5MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-26 23:09:33,681 INFO L158 Benchmark]: RCFGBuilder took 488.75ms. Allocated memory is still 390.1MB. Free memory was 328.5MB in the beginning and 358.6MB in the end (delta: -30.1MB). Peak memory consumption was 23.2MB. Max. memory is 16.0GB. [2023-08-26 23:09:33,681 INFO L158 Benchmark]: TraceAbstraction took 882246.32ms. Allocated memory was 390.1MB in the beginning and 509.6MB in the end (delta: 119.5MB). Free memory was 357.7MB in the beginning and 187.2MB in the end (delta: 170.5MB). Peak memory consumption was 290.7MB. Max. memory is 16.0GB. [2023-08-26 23:09:33,682 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 390.1MB. Free memory is still 367.0MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 480.52ms. Allocated memory is still 390.1MB. Free memory was 364.4MB in the beginning and 333.7MB in the end (delta: 30.7MB). Peak memory consumption was 31.5MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 57.39ms. Allocated memory is still 390.1MB. Free memory was 333.7MB in the beginning and 330.9MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 47.88ms. Allocated memory is still 390.1MB. Free memory was 330.9MB in the beginning and 328.5MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 488.75ms. Allocated memory is still 390.1MB. Free memory was 328.5MB in the beginning and 358.6MB in the end (delta: -30.1MB). Peak memory consumption was 23.2MB. Max. memory is 16.0GB. * TraceAbstraction took 882246.32ms. Allocated memory was 390.1MB in the beginning and 509.6MB in the end (delta: 119.5MB). Free memory was 357.7MB in the beginning and 187.2MB in the end (delta: 170.5MB). Peak memory consumption was 290.7MB. 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: 98.3s, 200 PlacesBefore, 42 PlacesAfterwards, 221 TransitionsBefore, 53 TransitionsAfterwards, 5768 CoEnabledTransitionPairs, 7 FixpointIterations, 90 TrivialSequentialCompositions, 113 ConcurrentSequentialCompositions, 4 TrivialYvCompositions, 19 ConcurrentYvCompositions, 10 ChoiceCompositions, 236 TotalNumberOfCompositions, 6602 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5583, independent: 5500, independent conditional: 0, independent unconditional: 5500, dependent: 83, dependent conditional: 0, dependent unconditional: 83, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 3121, independent: 3098, independent conditional: 0, independent unconditional: 3098, dependent: 23, dependent conditional: 0, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 5583, independent: 2402, independent conditional: 0, independent unconditional: 2402, dependent: 60, dependent conditional: 0, dependent unconditional: 60, unknown: 3121, unknown conditional: 0, unknown unconditional: 3121] , Statistics on independence cache: Total cache size (in pairs): 89, Positive cache size: 83, Positive conditional cache size: 0, Positive unconditional cache size: 83, Negative cache size: 6, Negative conditional cache size: 0, Negative unconditional cache size: 6, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - TimeoutResultAtElement [Line: 1059]: 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: 1059]: 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: 1056]: 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: 1056]: 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: 1061]: 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: 1062]: 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: 1061]: 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: 1062]: 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: 1059]: 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: 1059]: 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: 1061]: 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: 1051]: 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: 1051]: 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: 1046]: 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: 1046]: 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: 1046]: 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: 1046]: 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, 286 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: 882.2s, OverallIterations: 12, TraceHistogramMax: 62, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 6.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 98.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 277 SdHoareTripleChecker+Valid, 5.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 277 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 5.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 69 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1443 IncrementalHoareTripleChecker+Invalid, 1512 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 69 mSolverCounterUnsat, 0 mSDtfsCounter, 1443 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 367 GetRequests, 259 SyntacticMatches, 16 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 251 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1221occurred in iteration=11, InterpolantAutomatonStates: 112, 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: 1.3s SsaConstructionTime, 3.3s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 215 NumberOfCodeBlocks, 183 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 364 ConstructedInterpolants, 0 QuantifiedInterpolants, 916 SizeOfPredicates, 0 NumberOfNonLiveVariables, 31599 ConjunctsInSsa, 76 ConjunctsInUnsatCore, 17 InterpolantComputations, 5 PerfectInterpolantSequences, 4194/6784 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