/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-SemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/popl20-more-sum-array-hom.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-05 22:00:29,992 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-05 22:00:29,994 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-05 22:00:30,020 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-05 22:00:30,020 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-05 22:00:30,021 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-05 22:00:30,022 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-05 22:00:30,024 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-05 22:00:30,025 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-05 22:00:30,026 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-05 22:00:30,027 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-05 22:00:30,027 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-05 22:00:30,028 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-05 22:00:30,028 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-05 22:00:30,029 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-05 22:00:30,030 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-05 22:00:30,031 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-05 22:00:30,031 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-05 22:00:30,032 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-05 22:00:30,034 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-05 22:00:30,035 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-05 22:00:30,036 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-05 22:00:30,037 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-05 22:00:30,037 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-05 22:00:30,040 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-05 22:00:30,040 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-05 22:00:30,041 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-05 22:00:30,041 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-05 22:00:30,042 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-05 22:00:30,042 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2022-12-05 22:00:30,047 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-05 22:00:30,047 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-05 22:00:30,048 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-05 22:00:30,049 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-SemanticLbe.epf [2022-12-05 22:00:30,079 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-05 22:00:30,079 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-05 22:00:30,080 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-05 22:00:30,080 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-05 22:00:30,081 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-05 22:00:30,081 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-05 22:00:30,081 INFO L138 SettingsManager]: * Use SBE=true [2022-12-05 22:00:30,081 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-05 22:00:30,082 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-05 22:00:30,082 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-05 22:00:30,082 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-05 22:00:30,090 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-05 22:00:30,090 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-05 22:00:30,090 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-05 22:00:30,090 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-05 22:00:30,090 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-05 22:00:30,091 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-05 22:00:30,091 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-05 22:00:30,091 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-05 22:00:30,091 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-05 22:00:30,091 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-05 22:00:30,091 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-05 22:00:30,091 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-05 22:00:30,092 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 22:00:30,092 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-05 22:00:30,092 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-05 22:00:30,092 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-05 22:00:30,092 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-05 22:00:30,092 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-05 22:00:30,092 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-05 22:00:30,092 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-05 22:00:30,398 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-05 22:00:30,422 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-05 22:00:30,424 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-05 22:00:30,425 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-05 22:00:30,426 INFO L275 PluginConnector]: CDTParser initialized [2022-12-05 22:00:30,430 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-more-sum-array-hom.wvr.c [2022-12-05 22:00:31,569 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-05 22:00:31,787 INFO L351 CDTParser]: Found 1 translation units. [2022-12-05 22:00:31,788 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-sum-array-hom.wvr.c [2022-12-05 22:00:31,794 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d346439e/17b4a6779d5b4d498004f7e281e2b1ef/FLAGb19d119a7 [2022-12-05 22:00:31,818 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d346439e/17b4a6779d5b4d498004f7e281e2b1ef [2022-12-05 22:00:31,821 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-05 22:00:31,823 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-05 22:00:31,824 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-05 22:00:31,824 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-05 22:00:31,826 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-05 22:00:31,827 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 10:00:31" (1/1) ... [2022-12-05 22:00:31,828 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@229eb7f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:00:31, skipping insertion in model container [2022-12-05 22:00:31,828 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 10:00:31" (1/1) ... [2022-12-05 22:00:31,834 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-05 22:00:31,852 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-05 22:00:31,999 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/popl20-more-sum-array-hom.wvr.c[2396,2409] [2022-12-05 22:00:32,012 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 22:00:32,021 INFO L203 MainTranslator]: Completed pre-run [2022-12-05 22:00:32,057 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/popl20-more-sum-array-hom.wvr.c[2396,2409] [2022-12-05 22:00:32,060 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 22:00:32,073 INFO L208 MainTranslator]: Completed translation [2022-12-05 22:00:32,074 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:00:32 WrapperNode [2022-12-05 22:00:32,074 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-05 22:00:32,075 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-05 22:00:32,075 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-05 22:00:32,075 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-05 22:00:32,081 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:00:32" (1/1) ... [2022-12-05 22:00:32,097 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:00:32" (1/1) ... [2022-12-05 22:00:32,124 INFO L138 Inliner]: procedures = 25, calls = 34, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 102 [2022-12-05 22:00:32,125 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-05 22:00:32,126 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-05 22:00:32,126 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-05 22:00:32,126 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-05 22:00:32,133 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:00:32" (1/1) ... [2022-12-05 22:00:32,134 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:00:32" (1/1) ... [2022-12-05 22:00:32,147 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:00:32" (1/1) ... [2022-12-05 22:00:32,147 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:00:32" (1/1) ... [2022-12-05 22:00:32,152 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:00:32" (1/1) ... [2022-12-05 22:00:32,155 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:00:32" (1/1) ... [2022-12-05 22:00:32,156 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:00:32" (1/1) ... [2022-12-05 22:00:32,157 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:00:32" (1/1) ... [2022-12-05 22:00:32,170 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-05 22:00:32,172 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-05 22:00:32,172 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-05 22:00:32,172 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-05 22:00:32,173 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:00:32" (1/1) ... [2022-12-05 22:00:32,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 22:00:32,189 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 22:00:32,201 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) [2022-12-05 22:00:32,225 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 [2022-12-05 22:00:32,242 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-05 22:00:32,242 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-05 22:00:32,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-05 22:00:32,243 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-05 22:00:32,243 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-05 22:00:32,243 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-05 22:00:32,243 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-05 22:00:32,243 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-05 22:00:32,243 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-12-05 22:00:32,244 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-12-05 22:00:32,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-05 22:00:32,244 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-05 22:00:32,244 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-05 22:00:32,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-05 22:00:32,244 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-05 22:00:32,245 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-05 22:00:32,370 INFO L236 CfgBuilder]: Building ICFG [2022-12-05 22:00:32,372 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-05 22:00:32,626 INFO L277 CfgBuilder]: Performing block encoding [2022-12-05 22:00:32,634 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-05 22:00:32,634 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2022-12-05 22:00:32,636 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 10:00:32 BoogieIcfgContainer [2022-12-05 22:00:32,636 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-05 22:00:32,638 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-05 22:00:32,638 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-05 22:00:32,640 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-05 22:00:32,641 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.12 10:00:31" (1/3) ... [2022-12-05 22:00:32,641 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54c0dcf5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 10:00:32, skipping insertion in model container [2022-12-05 22:00:32,641 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:00:32" (2/3) ... [2022-12-05 22:00:32,641 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54c0dcf5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 10:00:32, skipping insertion in model container [2022-12-05 22:00:32,641 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 10:00:32" (3/3) ... [2022-12-05 22:00:32,642 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-sum-array-hom.wvr.c [2022-12-05 22:00:32,658 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-05 22:00:32,658 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-05 22:00:32,659 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-05 22:00:32,718 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-12-05 22:00:32,764 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 146 places, 148 transitions, 320 flow [2022-12-05 22:00:32,840 INFO L130 PetriNetUnfolder]: 12/145 cut-off events. [2022-12-05 22:00:32,840 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-05 22:00:32,845 INFO L83 FinitePrefix]: Finished finitePrefix Result has 158 conditions, 145 events. 12/145 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 100 event pairs, 0 based on Foata normal form. 0/132 useless extension candidates. Maximal degree in co-relation 107. Up to 2 conditions per place. [2022-12-05 22:00:32,846 INFO L82 GeneralOperation]: Start removeDead. Operand has 146 places, 148 transitions, 320 flow [2022-12-05 22:00:32,856 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 133 places, 135 transitions, 288 flow [2022-12-05 22:00:32,858 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-05 22:00:32,884 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 133 places, 135 transitions, 288 flow [2022-12-05 22:00:32,889 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 133 places, 135 transitions, 288 flow [2022-12-05 22:00:32,926 INFO L130 PetriNetUnfolder]: 12/135 cut-off events. [2022-12-05 22:00:32,927 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-05 22:00:32,929 INFO L83 FinitePrefix]: Finished finitePrefix Result has 148 conditions, 135 events. 12/135 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 101 event pairs, 0 based on Foata normal form. 0/123 useless extension candidates. Maximal degree in co-relation 107. Up to 2 conditions per place. [2022-12-05 22:00:32,933 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 133 places, 135 transitions, 288 flow [2022-12-05 22:00:32,933 INFO L188 LiptonReduction]: Number of co-enabled transitions 1728 [2022-12-05 22:00:38,266 INFO L203 LiptonReduction]: Total number of compositions: 111 [2022-12-05 22:00:38,279 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-05 22:00:38,284 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;@479c3890, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-05 22:00:38,284 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-05 22:00:38,290 INFO L130 PetriNetUnfolder]: 4/23 cut-off events. [2022-12-05 22:00:38,291 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-05 22:00:38,291 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 22:00:38,291 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] [2022-12-05 22:00:38,292 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-05 22:00:38,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 22:00:38,296 INFO L85 PathProgramCache]: Analyzing trace with hash 2027454459, now seen corresponding path program 1 times [2022-12-05 22:00:38,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 22:00:38,304 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864430766] [2022-12-05 22:00:38,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 22:00:38,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 22:00:38,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 22:00:39,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 22:00:39,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 22:00:39,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864430766] [2022-12-05 22:00:39,002 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [864430766] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 22:00:39,002 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 22:00:39,002 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-05 22:00:39,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940301450] [2022-12-05 22:00:39,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 22:00:39,010 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-05 22:00:39,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 22:00:39,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-05 22:00:39,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-05 22:00:39,034 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 24 [2022-12-05 22:00:39,035 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 24 transitions, 66 flow. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 22:00:39,035 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 22:00:39,036 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 24 [2022-12-05 22:00:39,036 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 22:00:39,184 INFO L130 PetriNetUnfolder]: 360/508 cut-off events. [2022-12-05 22:00:39,184 INFO L131 PetriNetUnfolder]: For 50/50 co-relation queries the response was YES. [2022-12-05 22:00:39,189 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1068 conditions, 508 events. 360/508 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 1619 event pairs, 39 based on Foata normal form. 1/306 useless extension candidates. Maximal degree in co-relation 803. Up to 421 conditions per place. [2022-12-05 22:00:39,195 INFO L137 encePairwiseOnDemand]: 19/24 looper letters, 32 selfloop transitions, 4 changer transitions 1/40 dead transitions. [2022-12-05 22:00:39,195 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 40 transitions, 187 flow [2022-12-05 22:00:39,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-05 22:00:39,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-05 22:00:39,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 47 transitions. [2022-12-05 22:00:39,206 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6527777777777778 [2022-12-05 22:00:39,208 INFO L175 Difference]: Start difference. First operand has 30 places, 24 transitions, 66 flow. Second operand 3 states and 47 transitions. [2022-12-05 22:00:39,208 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 40 transitions, 187 flow [2022-12-05 22:00:39,211 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 40 transitions, 165 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-12-05 22:00:39,215 INFO L231 Difference]: Finished difference. Result has 27 places, 27 transitions, 80 flow [2022-12-05 22:00:39,217 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=80, PETRI_PLACES=27, PETRI_TRANSITIONS=27} [2022-12-05 22:00:39,220 INFO L294 CegarLoopForPetriNet]: 30 programPoint places, -3 predicate places. [2022-12-05 22:00:39,220 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 27 transitions, 80 flow [2022-12-05 22:00:39,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 22:00:39,220 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 22:00:39,221 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] [2022-12-05 22:00:39,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-05 22:00:39,221 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-05 22:00:39,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 22:00:39,229 INFO L85 PathProgramCache]: Analyzing trace with hash -1702965316, now seen corresponding path program 1 times [2022-12-05 22:00:39,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 22:00:39,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211123423] [2022-12-05 22:00:39,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 22:00:39,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 22:00:39,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 22:00:39,420 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 22:00:39,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 22:00:39,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211123423] [2022-12-05 22:00:39,422 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211123423] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 22:00:39,422 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 22:00:39,422 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-05 22:00:39,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927871954] [2022-12-05 22:00:39,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 22:00:39,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-05 22:00:39,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 22:00:39,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-05 22:00:39,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-05 22:00:39,426 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 24 [2022-12-05 22:00:39,426 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 27 transitions, 80 flow. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 22:00:39,427 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 22:00:39,427 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 24 [2022-12-05 22:00:39,431 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 22:00:39,635 INFO L130 PetriNetUnfolder]: 663/975 cut-off events. [2022-12-05 22:00:39,635 INFO L131 PetriNetUnfolder]: For 287/287 co-relation queries the response was YES. [2022-12-05 22:00:39,637 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2385 conditions, 975 events. 663/975 cut-off events. For 287/287 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 4056 event pairs, 179 based on Foata normal form. 38/1003 useless extension candidates. Maximal degree in co-relation 488. Up to 368 conditions per place. [2022-12-05 22:00:39,641 INFO L137 encePairwiseOnDemand]: 18/24 looper letters, 64 selfloop transitions, 5 changer transitions 0/71 dead transitions. [2022-12-05 22:00:39,642 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 71 transitions, 348 flow [2022-12-05 22:00:39,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-05 22:00:39,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-05 22:00:39,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 73 transitions. [2022-12-05 22:00:39,643 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5069444444444444 [2022-12-05 22:00:39,643 INFO L175 Difference]: Start difference. First operand has 27 places, 27 transitions, 80 flow. Second operand 6 states and 73 transitions. [2022-12-05 22:00:39,643 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 71 transitions, 348 flow [2022-12-05 22:00:39,644 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 71 transitions, 338 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-05 22:00:39,646 INFO L231 Difference]: Finished difference. Result has 35 places, 31 transitions, 115 flow [2022-12-05 22:00:39,646 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=115, PETRI_PLACES=35, PETRI_TRANSITIONS=31} [2022-12-05 22:00:39,646 INFO L294 CegarLoopForPetriNet]: 30 programPoint places, 5 predicate places. [2022-12-05 22:00:39,647 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 31 transitions, 115 flow [2022-12-05 22:00:39,647 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 22:00:39,647 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 22:00:39,647 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] [2022-12-05 22:00:39,647 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-05 22:00:39,647 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-05 22:00:39,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 22:00:39,648 INFO L85 PathProgramCache]: Analyzing trace with hash -1489304406, now seen corresponding path program 1 times [2022-12-05 22:00:39,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 22:00:39,648 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909677985] [2022-12-05 22:00:39,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 22:00:39,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 22:00:39,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 22:00:39,720 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 22:00:39,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 22:00:39,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909677985] [2022-12-05 22:00:39,721 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909677985] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 22:00:39,721 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 22:00:39,721 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-05 22:00:39,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271344154] [2022-12-05 22:00:39,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 22:00:39,722 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-05 22:00:39,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 22:00:39,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-05 22:00:39,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-05 22:00:39,723 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 24 [2022-12-05 22:00:39,723 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 31 transitions, 115 flow. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 22:00:39,723 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 22:00:39,723 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 24 [2022-12-05 22:00:39,723 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 22:00:39,870 INFO L130 PetriNetUnfolder]: 483/758 cut-off events. [2022-12-05 22:00:39,870 INFO L131 PetriNetUnfolder]: For 418/444 co-relation queries the response was YES. [2022-12-05 22:00:39,871 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1994 conditions, 758 events. 483/758 cut-off events. For 418/444 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 3276 event pairs, 185 based on Foata normal form. 52/775 useless extension candidates. Maximal degree in co-relation 1345. Up to 476 conditions per place. [2022-12-05 22:00:39,875 INFO L137 encePairwiseOnDemand]: 19/24 looper letters, 50 selfloop transitions, 4 changer transitions 0/57 dead transitions. [2022-12-05 22:00:39,876 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 57 transitions, 295 flow [2022-12-05 22:00:39,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-05 22:00:39,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-05 22:00:39,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 60 transitions. [2022-12-05 22:00:39,879 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5 [2022-12-05 22:00:39,879 INFO L175 Difference]: Start difference. First operand has 35 places, 31 transitions, 115 flow. Second operand 5 states and 60 transitions. [2022-12-05 22:00:39,879 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 57 transitions, 295 flow [2022-12-05 22:00:39,883 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 57 transitions, 293 flow, removed 1 selfloop flow, removed 0 redundant places. [2022-12-05 22:00:39,884 INFO L231 Difference]: Finished difference. Result has 41 places, 32 transitions, 132 flow [2022-12-05 22:00:39,884 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=113, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=132, PETRI_PLACES=41, PETRI_TRANSITIONS=32} [2022-12-05 22:00:39,885 INFO L294 CegarLoopForPetriNet]: 30 programPoint places, 11 predicate places. [2022-12-05 22:00:39,885 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 32 transitions, 132 flow [2022-12-05 22:00:39,886 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 22:00:39,886 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 22:00:39,886 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] [2022-12-05 22:00:39,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-05 22:00:39,886 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-05 22:00:39,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 22:00:39,887 INFO L85 PathProgramCache]: Analyzing trace with hash 482585012, now seen corresponding path program 1 times [2022-12-05 22:00:39,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 22:00:39,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919530103] [2022-12-05 22:00:39,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 22:00:39,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 22:00:39,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 22:00:40,061 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 22:00:40,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 22:00:40,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919530103] [2022-12-05 22:00:40,063 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [919530103] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 22:00:40,063 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 22:00:40,063 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-05 22:00:40,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120676396] [2022-12-05 22:00:40,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 22:00:40,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-05 22:00:40,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 22:00:40,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-05 22:00:40,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-05 22:00:40,066 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 24 [2022-12-05 22:00:40,066 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 32 transitions, 132 flow. Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 22:00:40,066 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 22:00:40,066 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 24 [2022-12-05 22:00:40,067 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 22:00:40,207 INFO L130 PetriNetUnfolder]: 483/741 cut-off events. [2022-12-05 22:00:40,208 INFO L131 PetriNetUnfolder]: For 514/538 co-relation queries the response was YES. [2022-12-05 22:00:40,210 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2017 conditions, 741 events. 483/741 cut-off events. For 514/538 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 2858 event pairs, 248 based on Foata normal form. 46/785 useless extension candidates. Maximal degree in co-relation 1580. Up to 568 conditions per place. [2022-12-05 22:00:40,213 INFO L137 encePairwiseOnDemand]: 19/24 looper letters, 25 selfloop transitions, 2 changer transitions 26/54 dead transitions. [2022-12-05 22:00:40,213 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 54 transitions, 294 flow [2022-12-05 22:00:40,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-05 22:00:40,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-05 22:00:40,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 55 transitions. [2022-12-05 22:00:40,215 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.4583333333333333 [2022-12-05 22:00:40,215 INFO L175 Difference]: Start difference. First operand has 41 places, 32 transitions, 132 flow. Second operand 5 states and 55 transitions. [2022-12-05 22:00:40,215 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 54 transitions, 294 flow [2022-12-05 22:00:40,219 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 54 transitions, 285 flow, removed 2 selfloop flow, removed 2 redundant places. [2022-12-05 22:00:40,220 INFO L231 Difference]: Finished difference. Result has 45 places, 28 transitions, 107 flow [2022-12-05 22:00:40,220 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=123, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=107, PETRI_PLACES=45, PETRI_TRANSITIONS=28} [2022-12-05 22:00:40,221 INFO L294 CegarLoopForPetriNet]: 30 programPoint places, 15 predicate places. [2022-12-05 22:00:40,222 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 28 transitions, 107 flow [2022-12-05 22:00:40,222 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 22:00:40,222 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 22:00:40,222 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] [2022-12-05 22:00:40,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-05 22:00:40,222 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-05 22:00:40,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 22:00:40,223 INFO L85 PathProgramCache]: Analyzing trace with hash -980835168, now seen corresponding path program 1 times [2022-12-05 22:00:40,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 22:00:40,223 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843458048] [2022-12-05 22:00:40,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 22:00:40,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 22:00:40,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 22:00:40,364 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-05 22:00:40,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 22:00:40,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843458048] [2022-12-05 22:00:40,364 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843458048] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-05 22:00:40,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1972618324] [2022-12-05 22:00:40,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 22:00:40,365 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 22:00:40,365 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 22:00:40,374 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) [2022-12-05 22:00:40,376 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-05 22:00:40,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 22:00:40,459 INFO L263 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-05 22:00:40,463 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-05 22:00:40,542 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-05 22:00:40,542 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-05 22:00:40,610 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-05 22:00:40,611 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1972618324] provided 1 perfect and 1 imperfect interpolant sequences [2022-12-05 22:00:40,611 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-05 22:00:40,611 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6, 6] total 12 [2022-12-05 22:00:40,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27678745] [2022-12-05 22:00:40,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 22:00:40,611 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-05 22:00:40,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 22:00:40,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-05 22:00:40,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2022-12-05 22:00:40,612 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 24 [2022-12-05 22:00:40,612 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 28 transitions, 107 flow. Second operand has 7 states, 7 states have (on average 4.0) internal successors, (28), 7 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 22:00:40,613 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 22:00:40,613 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 24 [2022-12-05 22:00:40,613 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 22:00:40,818 INFO L130 PetriNetUnfolder]: 544/799 cut-off events. [2022-12-05 22:00:40,818 INFO L131 PetriNetUnfolder]: For 455/455 co-relation queries the response was YES. [2022-12-05 22:00:40,820 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2213 conditions, 799 events. 544/799 cut-off events. For 455/455 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 3018 event pairs, 139 based on Foata normal form. 16/814 useless extension candidates. Maximal degree in co-relation 2191. Up to 410 conditions per place. [2022-12-05 22:00:40,823 INFO L137 encePairwiseOnDemand]: 16/24 looper letters, 58 selfloop transitions, 9 changer transitions 0/68 dead transitions. [2022-12-05 22:00:40,824 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 68 transitions, 379 flow [2022-12-05 22:00:40,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-05 22:00:40,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-05 22:00:40,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 66 transitions. [2022-12-05 22:00:40,825 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.39285714285714285 [2022-12-05 22:00:40,825 INFO L175 Difference]: Start difference. First operand has 45 places, 28 transitions, 107 flow. Second operand 7 states and 66 transitions. [2022-12-05 22:00:40,825 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 68 transitions, 379 flow [2022-12-05 22:00:40,828 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 68 transitions, 337 flow, removed 14 selfloop flow, removed 10 redundant places. [2022-12-05 22:00:40,829 INFO L231 Difference]: Finished difference. Result has 38 places, 33 transitions, 142 flow [2022-12-05 22:00:40,829 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=85, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=142, PETRI_PLACES=38, PETRI_TRANSITIONS=33} [2022-12-05 22:00:40,830 INFO L294 CegarLoopForPetriNet]: 30 programPoint places, 8 predicate places. [2022-12-05 22:00:40,830 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 33 transitions, 142 flow [2022-12-05 22:00:40,830 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.0) internal successors, (28), 7 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 22:00:40,830 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 22:00:40,830 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] [2022-12-05 22:00:40,842 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-05 22:00:41,036 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 22:00:41,037 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-05 22:00:41,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 22:00:41,037 INFO L85 PathProgramCache]: Analyzing trace with hash 1958639916, now seen corresponding path program 2 times [2022-12-05 22:00:41,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 22:00:41,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169034451] [2022-12-05 22:00:41,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 22:00:41,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 22:00:41,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 22:00:41,154 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-05 22:00:41,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 22:00:41,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169034451] [2022-12-05 22:00:41,155 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169034451] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-05 22:00:41,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1514208821] [2022-12-05 22:00:41,155 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-05 22:00:41,155 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 22:00:41,155 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 22:00:41,157 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) [2022-12-05 22:00:41,185 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-05 22:00:41,262 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-05 22:00:41,263 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-05 22:00:41,264 INFO L263 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-05 22:00:41,265 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-05 22:00:41,325 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-05 22:00:41,325 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-05 22:00:41,389 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-05 22:00:41,389 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1514208821] provided 1 perfect and 1 imperfect interpolant sequences [2022-12-05 22:00:41,390 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-05 22:00:41,390 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6, 6] total 12 [2022-12-05 22:00:41,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766385969] [2022-12-05 22:00:41,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 22:00:41,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-05 22:00:41,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 22:00:41,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-05 22:00:41,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2022-12-05 22:00:41,393 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 24 [2022-12-05 22:00:41,393 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 33 transitions, 142 flow. Second operand has 7 states, 7 states have (on average 4.0) internal successors, (28), 7 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 22:00:41,393 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 22:00:41,393 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 24 [2022-12-05 22:00:41,393 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 22:00:41,582 INFO L130 PetriNetUnfolder]: 736/1083 cut-off events. [2022-12-05 22:00:41,582 INFO L131 PetriNetUnfolder]: For 1013/1013 co-relation queries the response was YES. [2022-12-05 22:00:41,584 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3402 conditions, 1083 events. 736/1083 cut-off events. For 1013/1013 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 4305 event pairs, 221 based on Foata normal form. 12/1094 useless extension candidates. Maximal degree in co-relation 3380. Up to 648 conditions per place. [2022-12-05 22:00:41,589 INFO L137 encePairwiseOnDemand]: 16/24 looper letters, 60 selfloop transitions, 12 changer transitions 0/73 dead transitions. [2022-12-05 22:00:41,589 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 73 transitions, 449 flow [2022-12-05 22:00:41,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-05 22:00:41,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-05 22:00:41,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 62 transitions. [2022-12-05 22:00:41,590 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.36904761904761907 [2022-12-05 22:00:41,591 INFO L175 Difference]: Start difference. First operand has 38 places, 33 transitions, 142 flow. Second operand 7 states and 62 transitions. [2022-12-05 22:00:41,591 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 73 transitions, 449 flow [2022-12-05 22:00:41,593 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 73 transitions, 414 flow, removed 10 selfloop flow, removed 3 redundant places. [2022-12-05 22:00:41,595 INFO L231 Difference]: Finished difference. Result has 44 places, 38 transitions, 200 flow [2022-12-05 22:00:41,595 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=127, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=200, PETRI_PLACES=44, PETRI_TRANSITIONS=38} [2022-12-05 22:00:41,597 INFO L294 CegarLoopForPetriNet]: 30 programPoint places, 14 predicate places. [2022-12-05 22:00:41,597 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 38 transitions, 200 flow [2022-12-05 22:00:41,597 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.0) internal successors, (28), 7 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 22:00:41,597 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 22:00:41,597 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] [2022-12-05 22:00:41,603 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-12-05 22:00:41,803 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,SelfDestructingSolverStorable5 [2022-12-05 22:00:41,803 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-05 22:00:41,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 22:00:41,804 INFO L85 PathProgramCache]: Analyzing trace with hash 613525214, now seen corresponding path program 3 times [2022-12-05 22:00:41,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 22:00:41,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253401344] [2022-12-05 22:00:41,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 22:00:41,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 22:00:41,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 22:00:41,905 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-05 22:00:41,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 22:00:41,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253401344] [2022-12-05 22:00:41,906 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253401344] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-05 22:00:41,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [444456515] [2022-12-05 22:00:41,906 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-05 22:00:41,906 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 22:00:41,906 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 22:00:41,908 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) [2022-12-05 22:00:41,910 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-05 22:00:41,995 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-12-05 22:00:41,996 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-05 22:00:41,997 INFO L263 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-05 22:00:41,998 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-05 22:00:42,080 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-05 22:00:42,080 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-05 22:00:42,151 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-05 22:00:42,152 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [444456515] provided 1 perfect and 1 imperfect interpolant sequences [2022-12-05 22:00:42,152 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-05 22:00:42,152 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6, 6] total 13 [2022-12-05 22:00:42,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430220974] [2022-12-05 22:00:42,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 22:00:42,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-05 22:00:42,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 22:00:42,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-05 22:00:42,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2022-12-05 22:00:42,156 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 24 [2022-12-05 22:00:42,156 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 38 transitions, 200 flow. Second operand has 7 states, 7 states have (on average 4.0) internal successors, (28), 7 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 22:00:42,156 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 22:00:42,156 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 24 [2022-12-05 22:00:42,156 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 22:00:42,371 INFO L130 PetriNetUnfolder]: 840/1246 cut-off events. [2022-12-05 22:00:42,372 INFO L131 PetriNetUnfolder]: For 2207/2207 co-relation queries the response was YES. [2022-12-05 22:00:42,375 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4494 conditions, 1246 events. 840/1246 cut-off events. For 2207/2207 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 5229 event pairs, 211 based on Foata normal form. 16/1261 useless extension candidates. Maximal degree in co-relation 4469. Up to 612 conditions per place. [2022-12-05 22:00:42,382 INFO L137 encePairwiseOnDemand]: 16/24 looper letters, 62 selfloop transitions, 19 changer transitions 0/82 dead transitions. [2022-12-05 22:00:42,382 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 82 transitions, 561 flow [2022-12-05 22:00:42,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-05 22:00:42,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-05 22:00:42,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 69 transitions. [2022-12-05 22:00:42,385 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.4107142857142857 [2022-12-05 22:00:42,385 INFO L175 Difference]: Start difference. First operand has 44 places, 38 transitions, 200 flow. Second operand 7 states and 69 transitions. [2022-12-05 22:00:42,385 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 82 transitions, 561 flow [2022-12-05 22:00:42,390 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 82 transitions, 520 flow, removed 12 selfloop flow, removed 3 redundant places. [2022-12-05 22:00:42,391 INFO L231 Difference]: Finished difference. Result has 50 places, 46 transitions, 310 flow [2022-12-05 22:00:42,392 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=182, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=310, PETRI_PLACES=50, PETRI_TRANSITIONS=46} [2022-12-05 22:00:42,392 INFO L294 CegarLoopForPetriNet]: 30 programPoint places, 20 predicate places. [2022-12-05 22:00:42,393 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 46 transitions, 310 flow [2022-12-05 22:00:42,393 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.0) internal successors, (28), 7 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 22:00:42,393 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 22:00:42,393 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] [2022-12-05 22:00:42,401 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-12-05 22:00:42,599 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 22:00:42,599 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-05 22:00:42,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 22:00:42,600 INFO L85 PathProgramCache]: Analyzing trace with hash 1717854792, now seen corresponding path program 4 times [2022-12-05 22:00:42,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 22:00:42,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369388128] [2022-12-05 22:00:42,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 22:00:42,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 22:00:42,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 22:00:42,699 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-05 22:00:42,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 22:00:42,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369388128] [2022-12-05 22:00:42,699 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369388128] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-05 22:00:42,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [275032032] [2022-12-05 22:00:42,700 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-05 22:00:42,700 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 22:00:42,700 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 22:00:42,701 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) [2022-12-05 22:00:42,704 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-05 22:00:42,776 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-05 22:00:42,776 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-05 22:00:42,777 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-05 22:00:42,778 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-05 22:00:42,839 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-05 22:00:42,839 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-05 22:00:42,900 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-05 22:00:42,900 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [275032032] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-05 22:00:42,900 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-05 22:00:42,900 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 7] total 13 [2022-12-05 22:00:42,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999168861] [2022-12-05 22:00:42,901 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-05 22:00:42,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-05 22:00:42,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 22:00:42,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-05 22:00:42,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2022-12-05 22:00:42,902 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 24 [2022-12-05 22:00:42,902 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 46 transitions, 310 flow. Second operand has 13 states, 13 states have (on average 3.0) internal successors, (39), 13 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 22:00:42,902 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 22:00:42,902 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 24 [2022-12-05 22:00:42,902 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 22:00:43,323 INFO L130 PetriNetUnfolder]: 869/1312 cut-off events. [2022-12-05 22:00:43,323 INFO L131 PetriNetUnfolder]: For 3825/3825 co-relation queries the response was YES. [2022-12-05 22:00:43,326 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5202 conditions, 1312 events. 869/1312 cut-off events. For 3825/3825 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 5349 event pairs, 30 based on Foata normal form. 18/1329 useless extension candidates. Maximal degree in co-relation 5174. Up to 590 conditions per place. [2022-12-05 22:00:43,332 INFO L137 encePairwiseOnDemand]: 15/24 looper letters, 80 selfloop transitions, 43 changer transitions 0/123 dead transitions. [2022-12-05 22:00:43,333 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 123 transitions, 1016 flow [2022-12-05 22:00:43,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-05 22:00:43,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-05 22:00:43,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 87 transitions. [2022-12-05 22:00:43,334 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.32954545454545453 [2022-12-05 22:00:43,334 INFO L175 Difference]: Start difference. First operand has 50 places, 46 transitions, 310 flow. Second operand 11 states and 87 transitions. [2022-12-05 22:00:43,334 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 123 transitions, 1016 flow [2022-12-05 22:00:43,342 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 123 transitions, 977 flow, removed 8 selfloop flow, removed 3 redundant places. [2022-12-05 22:00:43,344 INFO L231 Difference]: Finished difference. Result has 63 places, 72 transitions, 673 flow [2022-12-05 22:00:43,344 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=288, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=673, PETRI_PLACES=63, PETRI_TRANSITIONS=72} [2022-12-05 22:00:43,345 INFO L294 CegarLoopForPetriNet]: 30 programPoint places, 33 predicate places. [2022-12-05 22:00:43,345 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 72 transitions, 673 flow [2022-12-05 22:00:43,345 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.0) internal successors, (39), 13 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 22:00:43,345 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 22:00:43,345 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] [2022-12-05 22:00:43,354 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-12-05 22:00:43,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 22:00:43,552 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-05 22:00:43,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 22:00:43,552 INFO L85 PathProgramCache]: Analyzing trace with hash -1064539182, now seen corresponding path program 5 times [2022-12-05 22:00:43,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 22:00:43,553 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948934664] [2022-12-05 22:00:43,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 22:00:43,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 22:00:43,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 22:00:43,652 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-05 22:00:43,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 22:00:43,652 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948934664] [2022-12-05 22:00:43,652 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948934664] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-05 22:00:43,652 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [616902113] [2022-12-05 22:00:43,652 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-12-05 22:00:43,653 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 22:00:43,653 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 22:00:43,654 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) [2022-12-05 22:00:43,680 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-05 22:00:43,747 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-05 22:00:43,748 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-05 22:00:43,749 INFO L263 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-05 22:00:43,750 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-05 22:00:43,813 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-05 22:00:43,813 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-05 22:00:43,864 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-05 22:00:43,865 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [616902113] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-05 22:00:43,865 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-05 22:00:43,865 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 7] total 16 [2022-12-05 22:00:43,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636048613] [2022-12-05 22:00:43,865 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-05 22:00:43,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-05 22:00:43,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 22:00:43,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-05 22:00:43,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2022-12-05 22:00:43,871 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 24 [2022-12-05 22:00:43,872 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 72 transitions, 673 flow. Second operand has 16 states, 16 states have (on average 3.0) internal successors, (48), 16 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 22:00:43,872 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 22:00:43,872 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 24 [2022-12-05 22:00:43,872 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 22:00:44,301 INFO L130 PetriNetUnfolder]: 1230/1853 cut-off events. [2022-12-05 22:00:44,301 INFO L131 PetriNetUnfolder]: For 8979/8979 co-relation queries the response was YES. [2022-12-05 22:00:44,307 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8613 conditions, 1853 events. 1230/1853 cut-off events. For 8979/8979 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 8097 event pairs, 194 based on Foata normal form. 26/1878 useless extension candidates. Maximal degree in co-relation 8579. Up to 713 conditions per place. [2022-12-05 22:00:44,319 INFO L137 encePairwiseOnDemand]: 14/24 looper letters, 102 selfloop transitions, 60 changer transitions 0/162 dead transitions. [2022-12-05 22:00:44,319 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 162 transitions, 1547 flow [2022-12-05 22:00:44,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-05 22:00:44,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-05 22:00:44,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 96 transitions. [2022-12-05 22:00:44,321 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.4 [2022-12-05 22:00:44,321 INFO L175 Difference]: Start difference. First operand has 63 places, 72 transitions, 673 flow. Second operand 10 states and 96 transitions. [2022-12-05 22:00:44,321 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 162 transitions, 1547 flow [2022-12-05 22:00:44,365 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 162 transitions, 1498 flow, removed 23 selfloop flow, removed 2 redundant places. [2022-12-05 22:00:44,367 INFO L231 Difference]: Finished difference. Result has 75 places, 100 transitions, 1119 flow [2022-12-05 22:00:44,368 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=642, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1119, PETRI_PLACES=75, PETRI_TRANSITIONS=100} [2022-12-05 22:00:44,368 INFO L294 CegarLoopForPetriNet]: 30 programPoint places, 45 predicate places. [2022-12-05 22:00:44,368 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 100 transitions, 1119 flow [2022-12-05 22:00:44,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.0) internal successors, (48), 16 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 22:00:44,369 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 22:00:44,369 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] [2022-12-05 22:00:44,375 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-12-05 22:00:44,575 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 22:00:44,575 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-05 22:00:44,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 22:00:44,575 INFO L85 PathProgramCache]: Analyzing trace with hash 1093310952, now seen corresponding path program 6 times [2022-12-05 22:00:44,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 22:00:44,576 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247875344] [2022-12-05 22:00:44,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 22:00:44,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 22:00:44,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 22:00:44,762 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-05 22:00:44,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 22:00:44,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247875344] [2022-12-05 22:00:44,763 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247875344] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-05 22:00:44,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1410107428] [2022-12-05 22:00:44,763 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-12-05 22:00:44,763 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 22:00:44,763 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 22:00:44,772 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) [2022-12-05 22:00:44,774 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-05 22:00:44,928 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2022-12-05 22:00:44,928 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-05 22:00:44,930 INFO L263 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-05 22:00:44,931 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-05 22:00:45,035 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-05 22:00:45,035 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-05 22:00:45,133 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-05 22:00:45,133 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1410107428] provided 1 perfect and 1 imperfect interpolant sequences [2022-12-05 22:00:45,133 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-05 22:00:45,133 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6, 6] total 14 [2022-12-05 22:00:45,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210126078] [2022-12-05 22:00:45,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 22:00:45,135 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-05 22:00:45,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 22:00:45,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-05 22:00:45,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2022-12-05 22:00:45,136 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 24 [2022-12-05 22:00:45,136 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 100 transitions, 1119 flow. Second operand has 7 states, 7 states have (on average 4.0) internal successors, (28), 7 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 22:00:45,136 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 22:00:45,136 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 24 [2022-12-05 22:00:45,136 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 22:00:45,612 INFO L130 PetriNetUnfolder]: 1158/1728 cut-off events. [2022-12-05 22:00:45,613 INFO L131 PetriNetUnfolder]: For 12420/12459 co-relation queries the response was YES. [2022-12-05 22:00:45,619 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9329 conditions, 1728 events. 1158/1728 cut-off events. For 12420/12459 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 7460 event pairs, 261 based on Foata normal form. 42/1762 useless extension candidates. Maximal degree in co-relation 9289. Up to 918 conditions per place. [2022-12-05 22:00:45,643 INFO L137 encePairwiseOnDemand]: 16/24 looper letters, 72 selfloop transitions, 55 changer transitions 0/134 dead transitions. [2022-12-05 22:00:45,643 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 134 transitions, 1571 flow [2022-12-05 22:00:45,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-05 22:00:45,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-05 22:00:45,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 63 transitions. [2022-12-05 22:00:45,645 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.375 [2022-12-05 22:00:45,645 INFO L175 Difference]: Start difference. First operand has 75 places, 100 transitions, 1119 flow. Second operand 7 states and 63 transitions. [2022-12-05 22:00:45,645 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 134 transitions, 1571 flow [2022-12-05 22:00:45,792 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 134 transitions, 1511 flow, removed 6 selfloop flow, removed 3 redundant places. [2022-12-05 22:00:45,795 INFO L231 Difference]: Finished difference. Result has 80 places, 106 transitions, 1296 flow [2022-12-05 22:00:45,795 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=1066, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1296, PETRI_PLACES=80, PETRI_TRANSITIONS=106} [2022-12-05 22:00:45,796 INFO L294 CegarLoopForPetriNet]: 30 programPoint places, 50 predicate places. [2022-12-05 22:00:45,796 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 106 transitions, 1296 flow [2022-12-05 22:00:45,796 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.0) internal successors, (28), 7 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 22:00:45,796 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 22:00:45,796 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] [2022-12-05 22:00:45,805 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-12-05 22:00:46,002 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 22:00:46,002 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-05 22:00:46,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 22:00:46,003 INFO L85 PathProgramCache]: Analyzing trace with hash -302388184, now seen corresponding path program 1 times [2022-12-05 22:00:46,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 22:00:46,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068097808] [2022-12-05 22:00:46,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 22:00:46,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 22:00:46,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 22:00:46,073 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-05 22:00:46,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 22:00:46,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068097808] [2022-12-05 22:00:46,073 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068097808] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-05 22:00:46,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [27550936] [2022-12-05 22:00:46,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 22:00:46,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 22:00:46,074 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 22:00:46,075 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) [2022-12-05 22:00:46,084 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-05 22:00:46,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 22:00:46,172 INFO L263 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-05 22:00:46,173 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-05 22:00:46,199 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-05 22:00:46,199 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-05 22:00:46,224 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-05 22:00:46,224 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [27550936] provided 1 perfect and 1 imperfect interpolant sequences [2022-12-05 22:00:46,224 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-05 22:00:46,224 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4] total 8 [2022-12-05 22:00:46,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588161265] [2022-12-05 22:00:46,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 22:00:46,225 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-05 22:00:46,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 22:00:46,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-05 22:00:46,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-12-05 22:00:46,225 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 24 [2022-12-05 22:00:46,226 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 106 transitions, 1296 flow. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 22:00:46,226 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 22:00:46,226 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 24 [2022-12-05 22:00:46,226 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 22:00:46,443 INFO L130 PetriNetUnfolder]: 963/1420 cut-off events. [2022-12-05 22:00:46,444 INFO L131 PetriNetUnfolder]: For 11655/11882 co-relation queries the response was YES. [2022-12-05 22:00:46,448 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7881 conditions, 1420 events. 963/1420 cut-off events. For 11655/11882 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 6223 event pairs, 278 based on Foata normal form. 224/1566 useless extension candidates. Maximal degree in co-relation 7838. Up to 1101 conditions per place. [2022-12-05 22:00:46,457 INFO L137 encePairwiseOnDemand]: 19/24 looper letters, 105 selfloop transitions, 11 changer transitions 0/129 dead transitions. [2022-12-05 22:00:46,458 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 129 transitions, 1751 flow [2022-12-05 22:00:46,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-05 22:00:46,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-05 22:00:46,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 44 transitions. [2022-12-05 22:00:46,459 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.36666666666666664 [2022-12-05 22:00:46,459 INFO L175 Difference]: Start difference. First operand has 80 places, 106 transitions, 1296 flow. Second operand 5 states and 44 transitions. [2022-12-05 22:00:46,459 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 129 transitions, 1751 flow [2022-12-05 22:00:46,479 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 129 transitions, 1624 flow, removed 21 selfloop flow, removed 4 redundant places. [2022-12-05 22:00:46,482 INFO L231 Difference]: Finished difference. Result has 81 places, 107 transitions, 1226 flow [2022-12-05 22:00:46,482 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=1181, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1226, PETRI_PLACES=81, PETRI_TRANSITIONS=107} [2022-12-05 22:00:46,482 INFO L294 CegarLoopForPetriNet]: 30 programPoint places, 51 predicate places. [2022-12-05 22:00:46,483 INFO L495 AbstractCegarLoop]: Abstraction has has 81 places, 107 transitions, 1226 flow [2022-12-05 22:00:46,483 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 22:00:46,483 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 22:00:46,483 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] [2022-12-05 22:00:46,494 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-12-05 22:00:46,689 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 22:00:46,689 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-05 22:00:46,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 22:00:46,690 INFO L85 PathProgramCache]: Analyzing trace with hash 1716387651, now seen corresponding path program 1 times [2022-12-05 22:00:46,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 22:00:46,690 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651094116] [2022-12-05 22:00:46,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 22:00:46,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 22:00:46,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 22:00:47,760 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 22:00:47,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 22:00:47,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651094116] [2022-12-05 22:00:47,760 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [651094116] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-05 22:00:47,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [372391487] [2022-12-05 22:00:47,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 22:00:47,761 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 22:00:47,761 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 22:00:47,762 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) [2022-12-05 22:00:47,764 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-12-05 22:00:47,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 22:00:47,861 INFO L263 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 50 conjunts are in the unsatisfiable core [2022-12-05 22:00:47,868 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-05 22:00:47,932 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-05 22:00:47,988 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-05 22:00:48,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-05 22:00:48,121 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-05 22:00:48,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-05 22:00:48,194 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-05 22:00:48,246 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 22:00:48,246 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 20 [2022-12-05 22:00:48,357 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 22:00:48,357 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-05 22:00:50,527 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_437 (Array Int Int)) (~M~0 Int)) (or (= (mod (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_437) c_~A~0.base) (+ c_~A~0.offset (* ~M~0 4))) c_~sum3~0 c_~sum2~0) 4294967296) (mod c_~sum1~0 4294967296)) (not (< ~M~0 c_~N~0)) (< (+ ~M~0 1) c_~N~0))) is different from false [2022-12-05 22:00:52,579 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_436 (Array Int Int)) (v_ArrVal_437 (Array Int Int)) (~M~0 Int)) (or (= (mod c_~sum1~0 4294967296) (mod (+ c_~sum3~0 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_436) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_437) c_~A~0.base) (+ c_~A~0.offset (* ~M~0 4))) c_~sum2~0) 4294967296)) (not (< ~M~0 c_~N~0)) (< (+ ~M~0 1) c_~N~0))) is different from false [2022-12-05 22:00:54,622 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_436 (Array Int Int)) (v_ArrVal_437 (Array Int Int)) (~M~0 Int)) (or (not (< ~M~0 c_~N~0)) (= (mod (+ (select (select |c_#memory_int| c_~A~0.base) (+ c_~A~0.offset (* c_thread1Thread1of1ForFork1_~i~0 4))) c_~sum1~0) 4294967296) (mod (+ c_~sum3~0 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_436) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_437) c_~A~0.base) (+ c_~A~0.offset (* ~M~0 4))) c_~sum2~0) 4294967296)) (< (+ ~M~0 1) c_~N~0))) is different from false [2022-12-05 22:00:56,659 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_436 (Array Int Int)) (v_ArrVal_437 (Array Int Int)) (~M~0 Int)) (or (= (mod (+ (select (select |c_#memory_int| c_~A~0.base) c_~A~0.offset) c_~sum1~0) 4294967296) (mod (+ c_~sum3~0 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_436) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_437) c_~A~0.base) (+ c_~A~0.offset (* ~M~0 4))) c_~sum2~0) 4294967296)) (not (< ~M~0 c_~N~0)) (< (+ ~M~0 1) c_~N~0))) is different from false [2022-12-05 22:00:58,821 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 22:00:58,821 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 60 treesize of output 49 [2022-12-05 22:00:58,840 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 22:00:58,840 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 990 treesize of output 904 [2022-12-05 22:00:58,864 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 894 treesize of output 798 [2022-12-05 22:00:58,883 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 798 treesize of output 750 [2022-12-05 22:00:58,902 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 22:00:58,903 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 750 treesize of output 704 [2022-12-05 22:01:07,723 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-05 22:01:59,270 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-05 22:03:10,789 WARN L233 SmtUtils]: Spent 5.06s on a formula simplification. DAG size of input: 3290 DAG size of output: 3255 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)