/usr/bin/java -Xmx8000000000 -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-NoLbe.epf --traceabstraction.use.on-demand.petri.net.difference true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/bench-exp1x3.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-06 16:59:15,838 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-06 16:59:15,840 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-06 16:59:15,873 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-06 16:59:15,874 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-06 16:59:15,876 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-06 16:59:15,878 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-06 16:59:15,882 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-06 16:59:15,904 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-06 16:59:15,906 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-06 16:59:15,907 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-06 16:59:15,907 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-06 16:59:15,907 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-06 16:59:15,908 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-06 16:59:15,909 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-06 16:59:15,909 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-06 16:59:15,910 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-06 16:59:15,910 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-06 16:59:15,914 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-06 16:59:15,918 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-06 16:59:15,921 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-06 16:59:15,923 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-06 16:59:15,924 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-06 16:59:15,925 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-06 16:59:15,930 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-06 16:59:15,931 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-06 16:59:15,931 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-06 16:59:15,932 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-06 16:59:15,933 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-06 16:59:15,933 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-06 16:59:15,933 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-06 16:59:15,935 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-06 16:59:15,936 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-06 16:59:15,936 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-06 16:59:15,937 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-06 16:59:15,937 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-06 16:59:15,937 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-06 16:59:15,938 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-06 16:59:15,938 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-06 16:59:15,938 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-06 16:59:15,939 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-06 16:59:15,940 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2022-12-06 16:59:15,965 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-06 16:59:15,965 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-06 16:59:15,966 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-06 16:59:15,966 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-06 16:59:15,967 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-06 16:59:15,967 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-06 16:59:15,968 INFO L138 SettingsManager]: * Use SBE=true [2022-12-06 16:59:15,968 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-06 16:59:15,968 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-06 16:59:15,968 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-06 16:59:15,968 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-06 16:59:15,969 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-06 16:59:15,969 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-06 16:59:15,969 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-06 16:59:15,969 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-06 16:59:15,969 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-06 16:59:15,969 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-06 16:59:15,969 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-06 16:59:15,969 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-06 16:59:15,969 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-06 16:59:15,970 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-06 16:59:15,970 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-06 16:59:15,970 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-06 16:59:15,970 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 16:59:15,970 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-06 16:59:15,970 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-06 16:59:15,970 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-06 16:59:15,970 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-06 16:59:15,970 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-06 16:59:15,970 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-06 16:59:15,971 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-06 16:59:15,971 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true [2022-12-06 16:59:16,253 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-06 16:59:16,270 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-06 16:59:16,272 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-06 16:59:16,273 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-06 16:59:16,273 INFO L275 PluginConnector]: CDTParser initialized [2022-12-06 16:59:16,274 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/bench-exp1x3.wvr.c [2022-12-06 16:59:17,241 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-06 16:59:17,440 INFO L351 CDTParser]: Found 1 translation units. [2022-12-06 16:59:17,441 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/bench-exp1x3.wvr.c [2022-12-06 16:59:17,448 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/74be4f50d/31080cafa4db4b04b2fbfb274223875c/FLAG50849cbe7 [2022-12-06 16:59:17,459 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/74be4f50d/31080cafa4db4b04b2fbfb274223875c [2022-12-06 16:59:17,461 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-06 16:59:17,462 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-06 16:59:17,463 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-06 16:59:17,463 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-06 16:59:17,465 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-06 16:59:17,466 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:59:17" (1/1) ... [2022-12-06 16:59:17,466 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f259420 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:59:17, skipping insertion in model container [2022-12-06 16:59:17,466 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:59:17" (1/1) ... [2022-12-06 16:59:17,471 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-06 16:59:17,481 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-06 16:59:17,606 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/bench-exp1x3.wvr.c[1849,1862] [2022-12-06 16:59:17,612 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 16:59:17,620 INFO L203 MainTranslator]: Completed pre-run [2022-12-06 16:59:17,638 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/bench-exp1x3.wvr.c[1849,1862] [2022-12-06 16:59:17,643 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 16:59:17,654 INFO L208 MainTranslator]: Completed translation [2022-12-06 16:59:17,656 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:59:17 WrapperNode [2022-12-06 16:59:17,656 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-06 16:59:17,657 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-06 16:59:17,657 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-06 16:59:17,657 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-06 16:59:17,662 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:59:17" (1/1) ... [2022-12-06 16:59:17,669 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:59:17" (1/1) ... [2022-12-06 16:59:17,685 INFO L138 Inliner]: procedures = 18, calls = 20, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 57 [2022-12-06 16:59:17,686 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-06 16:59:17,686 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-06 16:59:17,687 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-06 16:59:17,687 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-06 16:59:17,693 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:59:17" (1/1) ... [2022-12-06 16:59:17,693 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:59:17" (1/1) ... [2022-12-06 16:59:17,700 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:59:17" (1/1) ... [2022-12-06 16:59:17,701 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:59:17" (1/1) ... [2022-12-06 16:59:17,709 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:59:17" (1/1) ... [2022-12-06 16:59:17,712 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:59:17" (1/1) ... [2022-12-06 16:59:17,712 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:59:17" (1/1) ... [2022-12-06 16:59:17,713 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:59:17" (1/1) ... [2022-12-06 16:59:17,714 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-06 16:59:17,715 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-06 16:59:17,715 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-06 16:59:17,715 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-06 16:59:17,715 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:59:17" (1/1) ... [2022-12-06 16:59:17,721 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 16:59:17,730 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 16:59:17,757 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) [2022-12-06 16:59:17,770 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 [2022-12-06 16:59:17,788 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-06 16:59:17,789 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-06 16:59:17,789 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-06 16:59:17,790 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-06 16:59:17,790 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-06 16:59:17,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-06 16:59:17,790 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-06 16:59:17,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-06 16:59:17,790 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-06 16:59:17,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-06 16:59:17,790 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-06 16:59:17,790 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-06 16:59:17,792 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-06 16:59:17,868 INFO L236 CfgBuilder]: Building ICFG [2022-12-06 16:59:17,869 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-06 16:59:18,039 INFO L277 CfgBuilder]: Performing block encoding [2022-12-06 16:59:18,052 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-06 16:59:18,052 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-06 16:59:18,053 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:59:18 BoogieIcfgContainer [2022-12-06 16:59:18,053 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-06 16:59:18,055 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-06 16:59:18,055 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-06 16:59:18,057 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-06 16:59:18,057 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 04:59:17" (1/3) ... [2022-12-06 16:59:18,057 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e43f666 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 04:59:18, skipping insertion in model container [2022-12-06 16:59:18,058 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:59:17" (2/3) ... [2022-12-06 16:59:18,058 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e43f666 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 04:59:18, skipping insertion in model container [2022-12-06 16:59:18,058 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:59:18" (3/3) ... [2022-12-06 16:59:18,059 INFO L112 eAbstractionObserver]: Analyzing ICFG bench-exp1x3.wvr.c [2022-12-06 16:59:18,080 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-06 16:59:18,081 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-06 16:59:18,081 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-06 16:59:18,146 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-06 16:59:18,177 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 75 places, 74 transitions, 164 flow [2022-12-06 16:59:18,231 INFO L130 PetriNetUnfolder]: 6/72 cut-off events. [2022-12-06 16:59:18,232 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-06 16:59:18,235 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 72 events. 6/72 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 25 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 43. Up to 2 conditions per place. [2022-12-06 16:59:18,235 INFO L82 GeneralOperation]: Start removeDead. Operand has 75 places, 74 transitions, 164 flow [2022-12-06 16:59:18,238 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 65 places, 64 transitions, 140 flow [2022-12-06 16:59:18,249 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-06 16:59:18,255 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;@42e15aa0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-06 16:59:18,256 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-12-06 16:59:18,285 INFO L130 PetriNetUnfolder]: 6/63 cut-off events. [2022-12-06 16:59:18,285 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-06 16:59:18,285 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:59:18,286 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:59:18,287 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 16:59:18,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:59:18,292 INFO L85 PathProgramCache]: Analyzing trace with hash -232152941, now seen corresponding path program 1 times [2022-12-06 16:59:18,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:59:18,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265042601] [2022-12-06 16:59:18,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:59:18,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:59:18,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:59:18,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:59:18,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:59:18,876 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265042601] [2022-12-06 16:59:18,877 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265042601] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:59:18,877 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:59:18,877 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-06 16:59:18,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588068402] [2022-12-06 16:59:18,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:59:18,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-06 16:59:18,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:59:18,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-06 16:59:18,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-12-06 16:59:18,908 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 74 [2022-12-06 16:59:18,912 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 64 transitions, 140 flow. Second operand has 7 states, 7 states have (on average 47.57142857142857) internal successors, (333), 7 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:59:18,912 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:59:18,912 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 74 [2022-12-06 16:59:18,913 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:59:19,114 INFO L130 PetriNetUnfolder]: 31/143 cut-off events. [2022-12-06 16:59:19,114 INFO L131 PetriNetUnfolder]: For 43/55 co-relation queries the response was YES. [2022-12-06 16:59:19,115 INFO L83 FinitePrefix]: Finished finitePrefix Result has 250 conditions, 143 events. 31/143 cut-off events. For 43/55 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 373 event pairs, 16 based on Foata normal form. 3/120 useless extension candidates. Maximal degree in co-relation 139. Up to 48 conditions per place. [2022-12-06 16:59:19,117 INFO L137 encePairwiseOnDemand]: 60/74 looper letters, 25 selfloop transitions, 5 changer transitions 7/73 dead transitions. [2022-12-06 16:59:19,118 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 73 transitions, 241 flow [2022-12-06 16:59:19,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-06 16:59:19,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-06 16:59:19,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 450 transitions. [2022-12-06 16:59:19,128 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6756756756756757 [2022-12-06 16:59:19,131 INFO L294 CegarLoopForPetriNet]: 65 programPoint places, 8 predicate places. [2022-12-06 16:59:19,131 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 73 transitions, 241 flow [2022-12-06 16:59:19,132 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 47.57142857142857) internal successors, (333), 7 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:59:19,132 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:59:19,132 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:59:19,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-06 16:59:19,132 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 16:59:19,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:59:19,133 INFO L85 PathProgramCache]: Analyzing trace with hash 885839328, now seen corresponding path program 1 times [2022-12-06 16:59:19,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:59:19,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331230698] [2022-12-06 16:59:19,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:59:19,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:59:19,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:59:19,361 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:59:19,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:59:19,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331230698] [2022-12-06 16:59:19,362 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331230698] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 16:59:19,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [393370449] [2022-12-06 16:59:19,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:59:19,364 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 16:59:19,364 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 16:59:19,366 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) [2022-12-06 16:59:19,367 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-06 16:59:19,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:59:19,438 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-06 16:59:19,445 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 16:59:19,819 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:59:19,820 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-06 16:59:19,942 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:59:19,942 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [393370449] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-06 16:59:19,942 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-06 16:59:19,942 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 13 [2022-12-06 16:59:19,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569771284] [2022-12-06 16:59:19,943 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-06 16:59:19,944 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-06 16:59:19,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:59:19,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-06 16:59:19,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2022-12-06 16:59:19,945 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 74 [2022-12-06 16:59:19,946 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 73 transitions, 241 flow. Second operand has 13 states, 13 states have (on average 46.0) internal successors, (598), 13 states have internal predecessors, (598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:59:19,946 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:59:19,946 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 74 [2022-12-06 16:59:19,946 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:59:20,283 INFO L130 PetriNetUnfolder]: 38/184 cut-off events. [2022-12-06 16:59:20,283 INFO L131 PetriNetUnfolder]: For 133/386 co-relation queries the response was YES. [2022-12-06 16:59:20,284 INFO L83 FinitePrefix]: Finished finitePrefix Result has 434 conditions, 184 events. 38/184 cut-off events. For 133/386 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 617 event pairs, 7 based on Foata normal form. 11/171 useless extension candidates. Maximal degree in co-relation 232. Up to 76 conditions per place. [2022-12-06 16:59:20,285 INFO L137 encePairwiseOnDemand]: 60/74 looper letters, 40 selfloop transitions, 16 changer transitions 8/98 dead transitions. [2022-12-06 16:59:20,285 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 98 transitions, 490 flow [2022-12-06 16:59:20,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-06 16:59:20,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-12-06 16:59:20,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 713 transitions. [2022-12-06 16:59:20,289 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6423423423423423 [2022-12-06 16:59:20,289 INFO L294 CegarLoopForPetriNet]: 65 programPoint places, 22 predicate places. [2022-12-06 16:59:20,289 INFO L495 AbstractCegarLoop]: Abstraction has has 87 places, 98 transitions, 490 flow [2022-12-06 16:59:20,290 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 46.0) internal successors, (598), 13 states have internal predecessors, (598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:59:20,290 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:59:20,290 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:59:20,300 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-06 16:59:20,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 16:59:20,496 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 16:59:20,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:59:20,496 INFO L85 PathProgramCache]: Analyzing trace with hash 798925314, now seen corresponding path program 2 times [2022-12-06 16:59:20,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:59:20,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531187006] [2022-12-06 16:59:20,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:59:20,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:59:20,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:59:20,643 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:59:20,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:59:20,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531187006] [2022-12-06 16:59:20,644 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531187006] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:59:20,644 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:59:20,645 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-06 16:59:20,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763805589] [2022-12-06 16:59:20,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:59:20,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-06 16:59:20,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:59:20,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-06 16:59:20,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-12-06 16:59:20,647 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 74 [2022-12-06 16:59:20,647 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 98 transitions, 490 flow. Second operand has 6 states, 6 states have (on average 46.666666666666664) internal successors, (280), 6 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:59:20,648 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:59:20,648 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 74 [2022-12-06 16:59:20,648 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:59:20,754 INFO L130 PetriNetUnfolder]: 34/169 cut-off events. [2022-12-06 16:59:20,755 INFO L131 PetriNetUnfolder]: For 167/238 co-relation queries the response was YES. [2022-12-06 16:59:20,758 INFO L83 FinitePrefix]: Finished finitePrefix Result has 476 conditions, 169 events. 34/169 cut-off events. For 167/238 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 526 event pairs, 5 based on Foata normal form. 7/159 useless extension candidates. Maximal degree in co-relation 271. Up to 66 conditions per place. [2022-12-06 16:59:20,759 INFO L137 encePairwiseOnDemand]: 64/74 looper letters, 42 selfloop transitions, 5 changer transitions 13/94 dead transitions. [2022-12-06 16:59:20,760 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 94 transitions, 583 flow [2022-12-06 16:59:20,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-06 16:59:20,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-06 16:59:20,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 345 transitions. [2022-12-06 16:59:20,761 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.666023166023166 [2022-12-06 16:59:20,762 INFO L294 CegarLoopForPetriNet]: 65 programPoint places, 27 predicate places. [2022-12-06 16:59:20,762 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 94 transitions, 583 flow [2022-12-06 16:59:20,762 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 46.666666666666664) internal successors, (280), 6 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:59:20,763 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:59:20,763 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:59:20,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-06 16:59:20,763 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 16:59:20,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:59:20,764 INFO L85 PathProgramCache]: Analyzing trace with hash -156480812, now seen corresponding path program 1 times [2022-12-06 16:59:20,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:59:20,764 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051243924] [2022-12-06 16:59:20,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:59:20,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:59:20,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:59:20,960 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:59:20,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:59:20,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051243924] [2022-12-06 16:59:20,961 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051243924] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 16:59:20,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1931347061] [2022-12-06 16:59:20,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:59:20,961 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 16:59:20,962 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 16:59:20,963 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) [2022-12-06 16:59:20,967 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-06 16:59:21,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:59:21,009 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-06 16:59:21,011 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 16:59:21,205 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:59:21,205 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-06 16:59:21,303 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:59:21,303 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1931347061] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-06 16:59:21,303 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-06 16:59:21,303 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 13 [2022-12-06 16:59:21,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496314080] [2022-12-06 16:59:21,304 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-06 16:59:21,304 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-06 16:59:21,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:59:21,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-06 16:59:21,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2022-12-06 16:59:21,305 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 74 [2022-12-06 16:59:21,306 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 94 transitions, 583 flow. Second operand has 13 states, 13 states have (on average 45.92307692307692) internal successors, (597), 13 states have internal predecessors, (597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:59:21,306 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:59:21,306 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 74 [2022-12-06 16:59:21,306 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:59:21,559 INFO L130 PetriNetUnfolder]: 40/180 cut-off events. [2022-12-06 16:59:21,559 INFO L131 PetriNetUnfolder]: For 295/615 co-relation queries the response was YES. [2022-12-06 16:59:21,559 INFO L83 FinitePrefix]: Finished finitePrefix Result has 633 conditions, 180 events. 40/180 cut-off events. For 295/615 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 566 event pairs, 1 based on Foata normal form. 17/179 useless extension candidates. Maximal degree in co-relation 393. Up to 79 conditions per place. [2022-12-06 16:59:21,560 INFO L137 encePairwiseOnDemand]: 60/74 looper letters, 42 selfloop transitions, 21 changer transitions 13/110 dead transitions. [2022-12-06 16:59:21,560 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 110 transitions, 866 flow [2022-12-06 16:59:21,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-06 16:59:21,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-12-06 16:59:21,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 658 transitions. [2022-12-06 16:59:21,562 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6351351351351351 [2022-12-06 16:59:21,563 INFO L294 CegarLoopForPetriNet]: 65 programPoint places, 40 predicate places. [2022-12-06 16:59:21,563 INFO L495 AbstractCegarLoop]: Abstraction has has 105 places, 110 transitions, 866 flow [2022-12-06 16:59:21,564 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 45.92307692307692) internal successors, (597), 13 states have internal predecessors, (597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:59:21,564 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:59:21,564 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:59:21,572 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-12-06 16:59:21,769 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,SelfDestructingSolverStorable3 [2022-12-06 16:59:21,769 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 16:59:21,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:59:21,770 INFO L85 PathProgramCache]: Analyzing trace with hash -355750987, now seen corresponding path program 1 times [2022-12-06 16:59:21,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:59:21,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462301977] [2022-12-06 16:59:21,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:59:21,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:59:21,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:59:22,232 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:59:22,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:59:22,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462301977] [2022-12-06 16:59:22,233 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462301977] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 16:59:22,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1856895060] [2022-12-06 16:59:22,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:59:22,234 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 16:59:22,234 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 16:59:22,235 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) [2022-12-06 16:59:22,267 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-06 16:59:22,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:59:22,422 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 17 conjunts are in the unsatisfiable core [2022-12-06 16:59:22,424 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 16:59:25,470 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:59:25,470 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-06 16:59:30,094 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:59:30,094 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1856895060] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-06 16:59:30,095 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-06 16:59:30,095 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8, 12] total 24 [2022-12-06 16:59:30,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907188963] [2022-12-06 16:59:30,095 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-06 16:59:30,095 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-12-06 16:59:30,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:59:30,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-12-06 16:59:30,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=433, Unknown=0, NotChecked=0, Total=552 [2022-12-06 16:59:30,097 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 74 [2022-12-06 16:59:30,098 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 110 transitions, 866 flow. Second operand has 24 states, 24 states have (on average 45.25) internal successors, (1086), 24 states have internal predecessors, (1086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:59:30,098 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:59:30,098 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 74 [2022-12-06 16:59:30,098 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:59:32,450 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-06 16:59:38,551 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-06 16:59:40,724 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-06 16:59:42,793 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-06 16:59:45,251 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-06 16:59:46,961 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-06 16:59:49,645 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-06 16:59:53,008 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-06 17:00:03,265 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-06 17:00:07,840 INFO L130 PetriNetUnfolder]: 130/440 cut-off events. [2022-12-06 17:00:07,841 INFO L131 PetriNetUnfolder]: For 910/1308 co-relation queries the response was YES. [2022-12-06 17:00:07,841 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1987 conditions, 440 events. 130/440 cut-off events. For 910/1308 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 2304 event pairs, 3 based on Foata normal form. 58/438 useless extension candidates. Maximal degree in co-relation 1565. Up to 268 conditions per place. [2022-12-06 17:00:07,846 INFO L137 encePairwiseOnDemand]: 57/74 looper letters, 89 selfloop transitions, 103 changer transitions 24/250 dead transitions. [2022-12-06 17:00:07,846 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 250 transitions, 2764 flow [2022-12-06 17:00:07,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-12-06 17:00:07,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2022-12-06 17:00:07,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 1598 transitions. [2022-12-06 17:00:07,849 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6351351351351351 [2022-12-06 17:00:07,850 INFO L294 CegarLoopForPetriNet]: 65 programPoint places, 73 predicate places. [2022-12-06 17:00:07,850 INFO L495 AbstractCegarLoop]: Abstraction has has 138 places, 250 transitions, 2764 flow [2022-12-06 17:00:07,850 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 45.25) internal successors, (1086), 24 states have internal predecessors, (1086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:00:07,851 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:00:07,851 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:00:07,856 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-06 17:00:08,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 17:00:08,056 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:00:08,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:00:08,056 INFO L85 PathProgramCache]: Analyzing trace with hash -684338149, now seen corresponding path program 2 times [2022-12-06 17:00:08,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:00:08,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943387375] [2022-12-06 17:00:08,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:00:08,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:00:08,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:00:08,383 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:00:08,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:00:08,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943387375] [2022-12-06 17:00:08,384 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943387375] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 17:00:08,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1808028975] [2022-12-06 17:00:08,384 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-06 17:00:08,384 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 17:00:08,384 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 17:00:08,385 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) [2022-12-06 17:00:08,387 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-06 17:00:08,954 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-06 17:00:08,954 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-06 17:00:08,956 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 19 conjunts are in the unsatisfiable core [2022-12-06 17:00:08,957 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 17:00:09,385 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:00:09,386 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-06 17:00:11,011 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:00:11,011 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1808028975] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-06 17:00:11,011 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-06 17:00:11,011 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8, 12] total 24 [2022-12-06 17:00:11,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177439759] [2022-12-06 17:00:11,012 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-06 17:00:11,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-12-06 17:00:11,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:00:11,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-12-06 17:00:11,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=443, Unknown=0, NotChecked=0, Total=552 [2022-12-06 17:00:11,013 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 74 [2022-12-06 17:00:11,015 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 250 transitions, 2764 flow. Second operand has 24 states, 24 states have (on average 45.166666666666664) internal successors, (1084), 24 states have internal predecessors, (1084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:00:11,015 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:00:11,015 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 74 [2022-12-06 17:00:11,015 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:00:17,283 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-06 17:00:19,496 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-06 17:00:22,207 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-06 17:00:24,643 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-06 17:00:27,651 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-06 17:00:29,655 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-06 17:00:35,986 INFO L130 PetriNetUnfolder]: 219/734 cut-off events. [2022-12-06 17:00:35,987 INFO L131 PetriNetUnfolder]: For 1910/2794 co-relation queries the response was YES. [2022-12-06 17:00:35,988 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3833 conditions, 734 events. 219/734 cut-off events. For 1910/2794 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 4703 event pairs, 7 based on Foata normal form. 87/711 useless extension candidates. Maximal degree in co-relation 2621. Up to 469 conditions per place. [2022-12-06 17:00:35,992 INFO L137 encePairwiseOnDemand]: 57/74 looper letters, 154 selfloop transitions, 178 changer transitions 41/407 dead transitions. [2022-12-06 17:00:35,992 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 407 transitions, 5454 flow [2022-12-06 17:00:35,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-12-06 17:00:35,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2022-12-06 17:00:35,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 1749 transitions. [2022-12-06 17:00:35,996 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6387874360847334 [2022-12-06 17:00:35,998 INFO L294 CegarLoopForPetriNet]: 65 programPoint places, 109 predicate places. [2022-12-06 17:00:35,998 INFO L495 AbstractCegarLoop]: Abstraction has has 174 places, 407 transitions, 5454 flow [2022-12-06 17:00:35,999 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 45.166666666666664) internal successors, (1084), 24 states have internal predecessors, (1084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:00:35,999 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:00:35,999 INFO L213 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:00:36,006 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-12-06 17:00:36,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 17:00:36,207 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:00:36,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:00:36,208 INFO L85 PathProgramCache]: Analyzing trace with hash -1336518964, now seen corresponding path program 3 times [2022-12-06 17:00:36,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:00:36,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263139318] [2022-12-06 17:00:36,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:00:36,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:00:36,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:00:36,522 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:00:36,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:00:36,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263139318] [2022-12-06 17:00:36,522 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [263139318] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 17:00:36,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [341705179] [2022-12-06 17:00:36,522 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-06 17:00:36,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 17:00:36,523 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 17:00:36,524 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) [2022-12-06 17:00:36,526 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-06 17:00:36,954 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-12-06 17:00:36,954 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-06 17:00:36,956 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 11 conjunts are in the unsatisfiable core [2022-12-06 17:00:36,957 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 17:00:38,235 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:00:38,235 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-06 17:00:39,647 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:00:39,647 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [341705179] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-06 17:00:39,647 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-06 17:00:39,647 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8, 8] total 22 [2022-12-06 17:00:39,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416436398] [2022-12-06 17:00:39,648 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-06 17:00:39,648 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-12-06 17:00:39,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:00:39,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-12-06 17:00:39,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=401, Unknown=0, NotChecked=0, Total=462 [2022-12-06 17:00:39,649 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 74 [2022-12-06 17:00:39,650 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 407 transitions, 5454 flow. Second operand has 22 states, 22 states have (on average 45.45454545454545) internal successors, (1000), 22 states have internal predecessors, (1000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:00:39,650 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:00:39,650 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 74 [2022-12-06 17:00:39,650 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:00:42,266 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-06 17:00:45,890 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-06 17:00:56,146 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-06 17:00:58,833 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-06 17:01:09,240 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-06 17:01:11,543 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-06 17:01:18,980 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-06 17:01:26,700 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-06 17:01:28,878 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-06 17:01:38,338 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-06 17:01:53,826 INFO L130 PetriNetUnfolder]: 291/1031 cut-off events. [2022-12-06 17:01:53,826 INFO L131 PetriNetUnfolder]: For 3605/4300 co-relation queries the response was YES. [2022-12-06 17:01:53,827 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5988 conditions, 1031 events. 291/1031 cut-off events. For 3605/4300 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 7398 event pairs, 6 based on Foata normal form. 79/990 useless extension candidates. Maximal degree in co-relation 3953. Up to 655 conditions per place. [2022-12-06 17:01:53,833 INFO L137 encePairwiseOnDemand]: 60/74 looper letters, 308 selfloop transitions, 180 changer transitions 46/568 dead transitions. [2022-12-06 17:01:53,833 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 208 places, 568 transitions, 8866 flow [2022-12-06 17:01:53,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-12-06 17:01:53,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2022-12-06 17:01:53,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 1777 transitions. [2022-12-06 17:01:53,836 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6490138787436085 [2022-12-06 17:01:53,838 INFO L294 CegarLoopForPetriNet]: 65 programPoint places, 143 predicate places. [2022-12-06 17:01:53,838 INFO L495 AbstractCegarLoop]: Abstraction has has 208 places, 568 transitions, 8866 flow [2022-12-06 17:01:53,838 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 45.45454545454545) internal successors, (1000), 22 states have internal predecessors, (1000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:01:53,839 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:01:53,839 INFO L213 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:01:53,850 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-12-06 17:01:54,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 17:01:54,044 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:01:54,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:01:54,044 INFO L85 PathProgramCache]: Analyzing trace with hash -132220770, now seen corresponding path program 4 times [2022-12-06 17:01:54,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:01:54,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431278761] [2022-12-06 17:01:54,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:01:54,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:01:54,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:01:54,209 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:01:54,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:01:54,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431278761] [2022-12-06 17:01:54,209 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431278761] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 17:01:54,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2070142418] [2022-12-06 17:01:54,210 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-06 17:01:54,210 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 17:01:54,210 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 17:01:54,211 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) [2022-12-06 17:01:54,213 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-06 17:01:56,067 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-06 17:01:56,067 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-06 17:01:56,069 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 11 conjunts are in the unsatisfiable core [2022-12-06 17:01:56,070 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 17:02:00,995 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:02:00,996 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-06 17:02:01,253 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:02:01,253 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2070142418] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-06 17:02:01,253 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-06 17:02:01,253 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 18 [2022-12-06 17:02:01,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326992705] [2022-12-06 17:02:01,254 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-06 17:02:01,254 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-06 17:02:01,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:02:01,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-06 17:02:01,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=241, Unknown=0, NotChecked=0, Total=306 [2022-12-06 17:02:01,255 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 74 [2022-12-06 17:02:01,256 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 208 places, 568 transitions, 8866 flow. Second operand has 18 states, 18 states have (on average 45.77777777777778) internal successors, (824), 18 states have internal predecessors, (824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:02:01,256 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:02:01,256 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 74 [2022-12-06 17:02:01,256 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:02:04,421 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-06 17:02:05,505 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-06 17:02:07,205 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-06 17:02:13,074 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-06 17:02:15,836 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-06 17:02:19,223 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-06 17:02:22,332 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-06 17:02:27,634 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-06 17:02:32,355 INFO L130 PetriNetUnfolder]: 333/1222 cut-off events. [2022-12-06 17:02:32,356 INFO L131 PetriNetUnfolder]: For 5221/5696 co-relation queries the response was YES. [2022-12-06 17:02:32,357 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7913 conditions, 1222 events. 333/1222 cut-off events. For 5221/5696 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 9227 event pairs, 11 based on Foata normal form. 41/1119 useless extension candidates. Maximal degree in co-relation 5121. Up to 778 conditions per place. [2022-12-06 17:02:32,364 INFO L137 encePairwiseOnDemand]: 60/74 looper letters, 374 selfloop transitions, 206 changer transitions 50/664 dead transitions. [2022-12-06 17:02:32,364 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 230 places, 664 transitions, 11710 flow [2022-12-06 17:02:32,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-12-06 17:02:32,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2022-12-06 17:02:32,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 1255 transitions. [2022-12-06 17:02:32,368 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6522869022869023 [2022-12-06 17:02:32,369 INFO L294 CegarLoopForPetriNet]: 65 programPoint places, 165 predicate places. [2022-12-06 17:02:32,369 INFO L495 AbstractCegarLoop]: Abstraction has has 230 places, 664 transitions, 11710 flow [2022-12-06 17:02:32,369 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 45.77777777777778) internal successors, (824), 18 states have internal predecessors, (824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:02:32,369 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:02:32,369 INFO L213 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:02:32,375 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-12-06 17:02:32,574 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 17:02:32,574 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:02:32,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:02:32,575 INFO L85 PathProgramCache]: Analyzing trace with hash 1275371592, now seen corresponding path program 5 times [2022-12-06 17:02:32,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:02:32,575 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863127922] [2022-12-06 17:02:32,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:02:32,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:02:32,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:02:32,739 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:02:32,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:02:32,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863127922] [2022-12-06 17:02:32,740 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1863127922] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 17:02:32,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1629614292] [2022-12-06 17:02:32,740 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-12-06 17:02:32,740 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 17:02:32,740 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 17:02:32,741 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) [2022-12-06 17:02:32,746 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-06 17:02:36,235 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-06 17:02:36,235 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-06 17:02:36,237 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 11 conjunts are in the unsatisfiable core [2022-12-06 17:02:36,238 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 17:02:42,949 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 1 refuted. 1 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:02:42,949 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-06 17:02:43,256 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:02:43,259 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1629614292] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-06 17:02:43,260 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-06 17:02:43,260 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9, 8] total 18 [2022-12-06 17:02:43,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632215863] [2022-12-06 17:02:43,262 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-06 17:02:43,263 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-06 17:02:43,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:02:43,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-06 17:02:43,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=239, Unknown=2, NotChecked=0, Total=306 [2022-12-06 17:02:43,264 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 74 [2022-12-06 17:02:43,265 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 230 places, 664 transitions, 11710 flow. Second operand has 18 states, 18 states have (on average 45.611111111111114) internal successors, (821), 18 states have internal predecessors, (821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:02:43,265 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:02:43,265 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 74 [2022-12-06 17:02:43,266 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:02:45,552 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-06 17:02:55,663 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-06 17:02:59,963 INFO L130 PetriNetUnfolder]: 330/1155 cut-off events. [2022-12-06 17:02:59,963 INFO L131 PetriNetUnfolder]: For 5886/6621 co-relation queries the response was YES. [2022-12-06 17:02:59,965 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8315 conditions, 1155 events. 330/1155 cut-off events. For 5886/6621 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 8458 event pairs, 2 based on Foata normal form. 38/1062 useless extension candidates. Maximal degree in co-relation 6655. Up to 744 conditions per place. [2022-12-06 17:02:59,998 INFO L137 encePairwiseOnDemand]: 58/74 looper letters, 481 selfloop transitions, 100 changer transitions 55/670 dead transitions. [2022-12-06 17:02:59,998 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 242 places, 670 transitions, 13093 flow [2022-12-06 17:02:59,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-06 17:02:59,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-12-06 17:02:59,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 867 transitions. [2022-12-06 17:02:59,999 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6509009009009009 [2022-12-06 17:03:00,000 INFO L294 CegarLoopForPetriNet]: 65 programPoint places, 177 predicate places. [2022-12-06 17:03:00,001 INFO L495 AbstractCegarLoop]: Abstraction has has 242 places, 670 transitions, 13093 flow [2022-12-06 17:03:00,001 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 45.611111111111114) internal successors, (821), 18 states have internal predecessors, (821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:03:00,001 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:03:00,001 INFO L213 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:03:00,011 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-12-06 17:03:00,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 17:03:00,208 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:03:00,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:03:00,208 INFO L85 PathProgramCache]: Analyzing trace with hash 640377480, now seen corresponding path program 6 times [2022-12-06 17:03:00,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:03:00,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851216716] [2022-12-06 17:03:00,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:03:00,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:03:00,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:03:00,376 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:03:00,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:03:00,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851216716] [2022-12-06 17:03:00,376 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851216716] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 17:03:00,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [142206029] [2022-12-06 17:03:00,376 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-12-06 17:03:00,376 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 17:03:00,376 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 17:03:00,377 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) [2022-12-06 17:03:00,379 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-12-06 17:03:07,805 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2022-12-06 17:03:07,805 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-06 17:03:07,808 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 14 conjunts are in the unsatisfiable core [2022-12-06 17:03:07,809 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 17:03:08,097 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:03:08,098 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-06 17:03:08,735 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:03:08,735 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [142206029] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-06 17:03:08,735 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-06 17:03:08,735 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9, 9] total 20 [2022-12-06 17:03:08,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89869352] [2022-12-06 17:03:08,735 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-06 17:03:08,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-12-06 17:03:08,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:03:08,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-12-06 17:03:08,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=296, Unknown=0, NotChecked=0, Total=380 [2022-12-06 17:03:08,737 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 74 [2022-12-06 17:03:08,737 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 242 places, 670 transitions, 13093 flow. Second operand has 20 states, 20 states have (on average 45.45) internal successors, (909), 20 states have internal predecessors, (909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:03:08,737 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:03:08,737 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 74 [2022-12-06 17:03:08,737 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:03:11,707 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-06 17:03:13,893 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-06 17:03:15,915 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-06 17:03:19,533 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-06 17:03:21,537 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-06 17:03:28,578 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-06 17:03:29,748 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-06 17:03:33,522 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-06 17:03:45,498 INFO L130 PetriNetUnfolder]: 397/1461 cut-off events. [2022-12-06 17:03:45,499 INFO L131 PetriNetUnfolder]: For 8263/8884 co-relation queries the response was YES. [2022-12-06 17:03:45,501 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11530 conditions, 1461 events. 397/1461 cut-off events. For 8263/8884 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 11642 event pairs, 1 based on Foata normal form. 42/1337 useless extension candidates. Maximal degree in co-relation 7704. Up to 948 conditions per place. [2022-12-06 17:03:45,510 INFO L137 encePairwiseOnDemand]: 58/74 looper letters, 465 selfloop transitions, 291 changer transitions 74/864 dead transitions. [2022-12-06 17:03:45,510 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 283 places, 864 transitions, 18717 flow [2022-12-06 17:03:45,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-12-06 17:03:45,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2022-12-06 17:03:45,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 1970 transitions. [2022-12-06 17:03:45,512 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6338481338481339 [2022-12-06 17:03:45,513 INFO L294 CegarLoopForPetriNet]: 65 programPoint places, 218 predicate places. [2022-12-06 17:03:45,513 INFO L495 AbstractCegarLoop]: Abstraction has has 283 places, 864 transitions, 18717 flow [2022-12-06 17:03:45,513 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 45.45) internal successors, (909), 20 states have internal predecessors, (909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:03:45,513 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:03:45,513 INFO L213 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:03:45,524 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-12-06 17:03:45,719 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,SelfDestructingSolverStorable9 [2022-12-06 17:03:45,719 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:03:45,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:03:45,720 INFO L85 PathProgramCache]: Analyzing trace with hash -855624368, now seen corresponding path program 7 times [2022-12-06 17:03:45,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:03:45,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874665008] [2022-12-06 17:03:45,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:03:45,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:03:45,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:03:45,967 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:03:45,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:03:45,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874665008] [2022-12-06 17:03:45,967 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1874665008] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 17:03:45,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [964338941] [2022-12-06 17:03:45,967 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-12-06 17:03:45,967 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 17:03:45,968 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 17:03:45,969 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) [2022-12-06 17:03:45,970 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-12-06 17:03:48,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:03:48,689 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 22 conjunts are in the unsatisfiable core [2022-12-06 17:03:48,690 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 17:04:52,892 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse3 (mod c_~x2~0 4294967296))) (let ((.cse5 (- .cse3))) (let ((.cse0 (div c_~x1~0 2)) (.cse7 (div (+ (- 1) .cse5) 4294967296))) (let ((.cse1 (* .cse7 4294967296)) (.cse2 (mod (div (- .cse0) (- 2)) 4294967296)) (.cse6 (mod .cse0 4294967296)) (.cse4 (mod c_~x1~0 4294967296))) (and (= (mod .cse0 2) 0) (= (mod c_~x2~0 2) 0) (<= (+ .cse1 (* (div (+ .cse2 1) 4294967296) 4294967296) 4294967297 .cse2) .cse3) (= (mod c_~x1~0 2) 0) (<= (+ .cse1 (* 4294967296 (div (+ (- 1) (- .cse4)) 4294967296)) .cse2 8589934594 (* (div (+ .cse5 .cse6) 4294967296) 4294967296)) 0) (<= (+ 8589934593 (* 8589934592 .cse7) .cse2 (* 4294967296 (div (+ .cse5 4294967295) 4294967296))) .cse4) (= (mod (div (- c_~x2~0) (- 2)) 4294967296) .cse2) (<= (+ .cse6 1) .cse4)))))) is different from false [2022-12-06 17:05:17,048 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse0 (div c_~x1~0 2)) (.cse4 (- (mod c_~x2~0 4294967296)))) (let ((.cse1 (div (+ (- 1) .cse4) 4294967296)) (.cse3 (mod (div (- .cse0) (- 2)) 4294967296)) (.cse5 (mod .cse0 4294967296)) (.cse2 (mod c_~x1~0 4294967296))) (and (= (mod .cse0 2) 0) (= (mod c_~x2~0 2) 0) (<= (+ (* .cse1 4294967296) (* 4294967296 (div (+ (- 1) (- .cse2)) 4294967296)) .cse3 8589934594 (* (div (+ .cse4 .cse5) 4294967296) 4294967296)) 0) (<= (+ 8589934593 (* 8589934592 .cse1) .cse3 (* 4294967296 (div (+ .cse4 4294967295) 4294967296))) .cse2) (= (mod (div (- c_~x2~0) (- 2)) 4294967296) .cse3) (<= (+ .cse5 1) .cse2)))) is different from false [2022-12-06 17:05:17,456 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:05:17,456 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-06 17:07:34,595 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:07:34,596 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [964338941] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-06 17:07:34,596 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-06 17:07:34,596 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 13, 14] total 34 [2022-12-06 17:07:34,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150168097] [2022-12-06 17:07:34,596 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-06 17:07:34,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-12-06 17:07:34,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:07:34,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-12-06 17:07:34,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=161, Invalid=792, Unknown=47, NotChecked=122, Total=1122 [2022-12-06 17:07:34,598 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 74 [2022-12-06 17:07:34,599 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 283 places, 864 transitions, 18717 flow. Second operand has 34 states, 34 states have (on average 44.85294117647059) internal successors, (1525), 34 states have internal predecessors, (1525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:34,599 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:07:34,599 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 74 [2022-12-06 17:07:34,599 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:07:50,012 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-06 17:07:52,249 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-06 17:08:27,394 WARN L233 SmtUtils]: Spent 25.85s on a formula simplification. DAG size of input: 41 DAG size of output: 26 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-06 17:08:30,214 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-06 17:08:32,219 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-06 17:08:33,280 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-06 17:08:36,071 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-06 17:08:38,076 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-06 17:08:42,170 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-06 17:08:45,188 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-06 17:08:47,197 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-06 17:08:49,504 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-06 17:09:02,646 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-06 17:09:04,650 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-06 17:09:06,038 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-06 17:09:08,045 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-06 17:09:14,893 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-06 17:09:17,599 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-06 17:09:19,603 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-06 17:09:21,616 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-06 17:09:23,622 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-06 17:09:25,636 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-06 17:09:27,640 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-06 17:09:29,646 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-06 17:09:31,650 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-06 17:09:32,891 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-06 17:09:34,950 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-06 17:09:36,955 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-06 17:09:38,966 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-06 17:09:40,984 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse2 (mod (div (- c_~x1~0) (- 2)) 4294967296)) (.cse3 (mod c_~n~0 4294967296))) (and (let ((.cse0 (* 4294967296 (div c_~n~0 4294967296))) (.cse1 (div c_~x2~0 4294967296))) (or (<= (+ (* c_~x1~0 2) .cse0 8589934594 (* 8589934592 .cse1)) (+ (* 8589934592 (div c_~x1~0 4294967296)) c_~n~0 (* 2 c_~x2~0))) (<= (+ .cse0 c_~x2~0 1) (+ c_~n~0 (* .cse1 4294967296))))) (= (mod c_~x2~0 2) 0) (< .cse2 .cse3) (= (mod c_~x1~0 2) 0) (< (mod c_~x1~0 4294967296) .cse3) (= (mod (div (- c_~x2~0) (- 2)) 4294967296) .cse2) (< 0 .cse2) (let ((.cse4 (* (mod c_~x2~0 2147483648) 2)) (.cse5 (* (mod c_~x1~0 1073741824) 4))) (or (not (< (* 2 (mod c_~x1~0 2147483648)) .cse3)) (< .cse4 .cse3) (= .cse5 .cse4) (< .cse5 .cse3))))) is different from false [2022-12-06 17:09:43,891 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-06 17:09:45,900 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-06 17:09:47,906 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-06 17:09:49,910 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-06 17:09:51,944 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-06 17:09:58,532 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-06 17:10:38,670 WARN L233 SmtUtils]: Spent 29.82s on a formula simplification. DAG size of input: 47 DAG size of output: 45 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-06 17:10:40,708 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-06 17:10:42,714 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-06 17:10:44,719 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-06 17:10:46,733 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-06 17:10:48,759 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-06 17:10:50,764 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-06 17:10:52,774 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-06 17:10:54,787 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-06 17:10:56,891 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-06 17:11:10,464 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-06 17:11:13,574 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-06 17:11:17,080 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-06 17:11:19,086 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-06 17:11:21,162 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-06 17:11:23,389 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-06 17:11:25,394 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-06 17:11:27,400 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-06 17:11:29,417 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-06 17:11:32,289 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-06 17:11:34,460 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-06 17:11:36,712 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-06 17:11:38,721 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-06 17:11:40,746 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-06 17:11:42,832 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-06 17:11:44,836 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-06 17:11:46,843 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-06 17:11:48,848 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-06 17:12:22,932 WARN L233 SmtUtils]: Spent 5.89s on a formula simplification. DAG size of input: 33 DAG size of output: 27 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-06 17:12:24,940 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-06 17:12:26,950 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-06 17:12:28,955 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-06 17:12:31,180 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-06 17:12:33,183 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-06 17:12:35,189 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-06 17:12:39,586 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-06 17:12:41,592 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-06 17:12:43,918 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-06 17:13:43,257 WARN L233 SmtUtils]: Spent 42.00s on a formula simplification. DAG size of input: 60 DAG size of output: 56 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-06 17:13:46,716 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-06 17:13:48,959 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-06 17:13:50,965 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-06 17:13:53,022 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] Received shutdown request... [2022-12-06 17:13:53,239 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 [2022-12-06 17:13:53,239 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-12-06 17:13:54,260 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-12-06 17:13:54,445 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2022-12-06 17:13:54,452 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 137 [2022-12-06 17:13:54,452 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-12-06 17:13:54,453 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-06 17:13:54,453 WARN L619 AbstractCegarLoop]: Verification canceled: while executing Executor. [2022-12-06 17:13:54,454 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2022-12-06 17:13:54,454 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2022-12-06 17:13:54,454 INFO L458 BasicCegarLoop]: Path program histogram: [7, 2, 1, 1] [2022-12-06 17:13:54,456 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-06 17:13:54,456 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-06 17:13:54,459 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 05:13:54 BasicIcfg [2022-12-06 17:13:54,459 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-06 17:13:54,459 INFO L158 Benchmark]: Toolchain (without parser) took 876996.95ms. Allocated memory was 219.2MB in the beginning and 421.5MB in the end (delta: 202.4MB). Free memory was 195.0MB in the beginning and 302.4MB in the end (delta: -107.4MB). Peak memory consumption was 96.3MB. Max. memory is 8.0GB. [2022-12-06 17:13:54,459 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 219.2MB. Free memory is still 195.9MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-06 17:13:54,459 INFO L158 Benchmark]: CACSL2BoogieTranslator took 193.77ms. Allocated memory is still 219.2MB. Free memory was 195.0MB in the beginning and 184.3MB in the end (delta: 10.7MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-12-06 17:13:54,459 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.58ms. Allocated memory is still 219.2MB. Free memory was 184.3MB in the beginning and 182.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-06 17:13:54,460 INFO L158 Benchmark]: Boogie Preprocessor took 27.64ms. Allocated memory is still 219.2MB. Free memory was 182.7MB in the beginning and 181.1MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-06 17:13:54,460 INFO L158 Benchmark]: RCFGBuilder took 338.77ms. Allocated memory is still 219.2MB. Free memory was 181.1MB in the beginning and 169.0MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-12-06 17:13:54,460 INFO L158 Benchmark]: TraceAbstraction took 876403.98ms. Allocated memory was 219.2MB in the beginning and 421.5MB in the end (delta: 202.4MB). Free memory was 168.0MB in the beginning and 302.4MB in the end (delta: -134.3MB). Peak memory consumption was 69.1MB. Max. memory is 8.0GB. [2022-12-06 17:13:54,461 INFO L339 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 219.2MB. Free memory is still 195.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 193.77ms. Allocated memory is still 219.2MB. Free memory was 195.0MB in the beginning and 184.3MB in the end (delta: 10.7MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 28.58ms. Allocated memory is still 219.2MB. Free memory was 184.3MB in the beginning and 182.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 27.64ms. Allocated memory is still 219.2MB. Free memory was 182.7MB in the beginning and 181.1MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 338.77ms. Allocated memory is still 219.2MB. Free memory was 181.1MB in the beginning and 169.0MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 876403.98ms. Allocated memory was 219.2MB in the beginning and 421.5MB in the end (delta: 202.4MB). Free memory was 168.0MB in the beginning and 302.4MB in the end (delta: -134.3MB). Peak memory consumption was 69.1MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 70]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while executing Executor. - TimeoutResultAtElement [Line: 65]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing Executor. - TimeoutResultAtElement [Line: 64]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 81 locations, 3 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: 876.3s, OverallIterations: 11, TraceHistogramMax: 2, PathProgramHistogramMax: 7, EmptinessCheckTime: 0.0s, AutomataDifference: 602.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 89 mSolverCounterUnknown, 1604 SdHoareTripleChecker+Valid, 284.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1604 mSDsluCounter, 882 SdHoareTripleChecker+Invalid, 282.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 102 IncrementalHoareTripleChecker+Unchecked, 717 mSDsCounter, 297 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4645 IncrementalHoareTripleChecker+Invalid, 5134 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 297 mSolverCounterUnsat, 165 mSDtfsCounter, 4645 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1320 GetRequests, 947 SyntacticMatches, 21 SemanticMatches, 352 ConstructedPredicates, 3 IntricatePredicates, 1 DeprecatedPredicates, 4009 ImplicationChecksByTransitivity, 480.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18717occurred in iteration=10, InterpolantAutomatonStates: 239, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 16.6s SatisfiabilityAnalysisTime, 254.9s InterpolantComputationTime, 1166 NumberOfCodeBlocks, 1166 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 1665 ConstructedInterpolants, 7 QuantifiedInterpolants, 24487 SizeOfPredicates, 64 NumberOfNonLiveVariables, 1269 ConjunctsInSsa, 119 ConjunctsInUnsatCore, 29 InterpolantComputations, 2 PerfectInterpolantSequences, 19/94 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