/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/popl20-more-min-array-hom.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-b8dbc81 [2023-01-28 04:40:47,032 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-28 04:40:47,034 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-28 04:40:47,063 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-01-28 04:40:47,063 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-01-28 04:40:47,066 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-01-28 04:40:47,070 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-01-28 04:40:47,072 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-01-28 04:40:47,073 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-01-28 04:40:47,078 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-01-28 04:40:47,078 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-01-28 04:40:47,079 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-01-28 04:40:47,079 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-01-28 04:40:47,079 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-01-28 04:40:47,080 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-01-28 04:40:47,080 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-01-28 04:40:47,081 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-01-28 04:40:47,081 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-01-28 04:40:47,082 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-01-28 04:40:47,083 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-01-28 04:40:47,084 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-01-28 04:40:47,086 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-01-28 04:40:47,087 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-01-28 04:40:47,088 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-01-28 04:40:47,093 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-01-28 04:40:47,093 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-01-28 04:40:47,094 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-01-28 04:40:47,095 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-01-28 04:40:47,095 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-01-28 04:40:47,096 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-01-28 04:40:47,096 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-01-28 04:40:47,096 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-01-28 04:40:47,097 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-01-28 04:40:47,098 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-01-28 04:40:47,098 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-01-28 04:40:47,098 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-01-28 04:40:47,099 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-01-28 04:40:47,099 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-01-28 04:40:47,099 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-28 04:40:47,099 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-28 04:40:47,100 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-28 04:40:47,101 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-VariableLbe.epf [2023-01-28 04:40:47,126 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-28 04:40:47,127 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-28 04:40:47,128 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-28 04:40:47,128 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-28 04:40:47,129 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-28 04:40:47,129 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-28 04:40:47,129 INFO L138 SettingsManager]: * Use SBE=true [2023-01-28 04:40:47,129 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-28 04:40:47,129 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-28 04:40:47,129 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-28 04:40:47,130 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-28 04:40:47,130 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-28 04:40:47,131 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-28 04:40:47,131 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-28 04:40:47,131 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-28 04:40:47,131 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-28 04:40:47,131 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-28 04:40:47,131 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-28 04:40:47,131 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-28 04:40:47,131 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-28 04:40:47,132 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-28 04:40:47,132 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-28 04:40:47,132 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-28 04:40:47,132 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 04:40:47,132 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-28 04:40:47,132 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-28 04:40:47,132 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-28 04:40:47,132 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-28 04:40:47,133 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-28 04:40:47,133 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-01-28 04:40:47,133 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-01-28 04:40:47,133 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-01-28 04:40:47,349 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-28 04:40:47,376 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-28 04:40:47,378 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-28 04:40:47,379 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-28 04:40:47,379 INFO L275 PluginConnector]: CDTParser initialized [2023-01-28 04:40:47,380 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-more-min-array-hom.wvr.c [2023-01-28 04:40:48,390 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-28 04:40:48,541 INFO L351 CDTParser]: Found 1 translation units. [2023-01-28 04:40:48,541 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-min-array-hom.wvr.c [2023-01-28 04:40:48,550 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/84d23fbb9/02063edcd9804bb0af1010e4754616c1/FLAGb4edec8aa [2023-01-28 04:40:48,563 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/84d23fbb9/02063edcd9804bb0af1010e4754616c1 [2023-01-28 04:40:48,565 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-28 04:40:48,566 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-28 04:40:48,567 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-28 04:40:48,567 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-28 04:40:48,569 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-28 04:40:48,570 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 04:40:48" (1/1) ... [2023-01-28 04:40:48,571 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@453c4247 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 04:40:48, skipping insertion in model container [2023-01-28 04:40:48,571 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 04:40:48" (1/1) ... [2023-01-28 04:40:48,576 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-28 04:40:48,600 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-28 04:40:48,699 WARN L247 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-min-array-hom.wvr.c[2586,2599] [2023-01-28 04:40:48,704 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 04:40:48,709 INFO L203 MainTranslator]: Completed pre-run [2023-01-28 04:40:48,722 WARN L247 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-min-array-hom.wvr.c[2586,2599] [2023-01-28 04:40:48,724 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 04:40:48,729 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-01-28 04:40:48,729 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-01-28 04:40:48,734 INFO L208 MainTranslator]: Completed translation [2023-01-28 04:40:48,734 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 04:40:48 WrapperNode [2023-01-28 04:40:48,734 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-28 04:40:48,735 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-28 04:40:48,735 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-28 04:40:48,735 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-28 04:40:48,739 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 04:40:48" (1/1) ... [2023-01-28 04:40:48,744 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 04:40:48" (1/1) ... [2023-01-28 04:40:48,756 INFO L138 Inliner]: procedures = 24, calls = 43, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 105 [2023-01-28 04:40:48,756 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-28 04:40:48,757 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-28 04:40:48,757 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-28 04:40:48,757 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-28 04:40:48,763 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 04:40:48" (1/1) ... [2023-01-28 04:40:48,763 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 04:40:48" (1/1) ... [2023-01-28 04:40:48,765 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 04:40:48" (1/1) ... [2023-01-28 04:40:48,765 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 04:40:48" (1/1) ... [2023-01-28 04:40:48,769 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 04:40:48" (1/1) ... [2023-01-28 04:40:48,771 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 04:40:48" (1/1) ... [2023-01-28 04:40:48,772 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 04:40:48" (1/1) ... [2023-01-28 04:40:48,772 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 04:40:48" (1/1) ... [2023-01-28 04:40:48,774 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-28 04:40:48,774 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-28 04:40:48,775 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-28 04:40:48,775 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-28 04:40:48,775 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 04:40:48" (1/1) ... [2023-01-28 04:40:48,779 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 04:40:48,787 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 04:40:48,796 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-01-28 04:40:48,805 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-01-28 04:40:48,820 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-28 04:40:48,820 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-01-28 04:40:48,821 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-01-28 04:40:48,821 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-01-28 04:40:48,821 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-01-28 04:40:48,821 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-01-28 04:40:48,821 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-01-28 04:40:48,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-28 04:40:48,821 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-28 04:40:48,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-28 04:40:48,821 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-01-28 04:40:48,821 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-01-28 04:40:48,821 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-01-28 04:40:48,822 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-28 04:40:48,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-28 04:40:48,822 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-01-28 04:40:48,822 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-28 04:40:48,823 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-01-28 04:40:48,886 INFO L236 CfgBuilder]: Building ICFG [2023-01-28 04:40:48,887 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-28 04:40:49,115 INFO L277 CfgBuilder]: Performing block encoding [2023-01-28 04:40:49,185 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-28 04:40:49,185 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-01-28 04:40:49,187 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 04:40:49 BoogieIcfgContainer [2023-01-28 04:40:49,187 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-28 04:40:49,188 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-28 04:40:49,188 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-28 04:40:49,209 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-28 04:40:49,209 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.01 04:40:48" (1/3) ... [2023-01-28 04:40:49,210 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32fd7407 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 04:40:49, skipping insertion in model container [2023-01-28 04:40:49,210 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 04:40:48" (2/3) ... [2023-01-28 04:40:49,210 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32fd7407 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 04:40:49, skipping insertion in model container [2023-01-28 04:40:49,210 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 04:40:49" (3/3) ... [2023-01-28 04:40:49,211 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-min-array-hom.wvr.c [2023-01-28 04:40:49,222 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-28 04:40:49,222 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-01-28 04:40:49,222 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-28 04:40:49,286 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-01-28 04:40:49,320 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 143 places, 145 transitions, 314 flow [2023-01-28 04:40:49,383 INFO L130 PetriNetUnfolder]: 12/142 cut-off events. [2023-01-28 04:40:49,383 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-01-28 04:40:49,387 INFO L83 FinitePrefix]: Finished finitePrefix Result has 155 conditions, 142 events. 12/142 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 88 event pairs, 0 based on Foata normal form. 0/129 useless extension candidates. Maximal degree in co-relation 106. Up to 2 conditions per place. [2023-01-28 04:40:49,387 INFO L82 GeneralOperation]: Start removeDead. Operand has 143 places, 145 transitions, 314 flow [2023-01-28 04:40:49,395 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 130 places, 132 transitions, 282 flow [2023-01-28 04:40:49,397 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 04:40:49,406 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 130 places, 132 transitions, 282 flow [2023-01-28 04:40:49,408 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 130 places, 132 transitions, 282 flow [2023-01-28 04:40:49,409 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 130 places, 132 transitions, 282 flow [2023-01-28 04:40:49,460 INFO L130 PetriNetUnfolder]: 12/132 cut-off events. [2023-01-28 04:40:49,460 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-01-28 04:40:49,461 INFO L83 FinitePrefix]: Finished finitePrefix Result has 145 conditions, 132 events. 12/132 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 89 event pairs, 0 based on Foata normal form. 0/120 useless extension candidates. Maximal degree in co-relation 106. Up to 2 conditions per place. [2023-01-28 04:40:49,462 INFO L119 LiptonReduction]: Number of co-enabled transitions 1320 [2023-01-28 04:40:53,156 INFO L134 LiptonReduction]: Checked pairs total: 1523 [2023-01-28 04:40:53,157 INFO L136 LiptonReduction]: Total number of compositions: 122 [2023-01-28 04:40:53,166 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-01-28 04:40:53,171 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;@5852d277, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 04:40:53,171 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-01-28 04:40:53,184 INFO L130 PetriNetUnfolder]: 4/23 cut-off events. [2023-01-28 04:40:53,184 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-01-28 04:40:53,184 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 04:40:53,184 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 04:40:53,185 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)] === [2023-01-28 04:40:53,188 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 04:40:53,188 INFO L85 PathProgramCache]: Analyzing trace with hash -924859563, now seen corresponding path program 1 times [2023-01-28 04:40:53,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 04:40:53,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561301681] [2023-01-28 04:40:53,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 04:40:53,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 04:40:53,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 04:40:53,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 04:40:53,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 04:40:53,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561301681] [2023-01-28 04:40:53,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561301681] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 04:40:53,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 04:40:53,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-01-28 04:40:53,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60123297] [2023-01-28 04:40:53,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 04:40:53,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-01-28 04:40:53,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 04:40:53,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-01-28 04:40:53,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-01-28 04:40:53,815 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 267 [2023-01-28 04:40:53,819 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 24 transitions, 66 flow. Second operand has 7 states, 7 states have (on average 100.71428571428571) internal successors, (705), 7 states have internal predecessors, (705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 04:40:53,819 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 04:40:53,819 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 267 [2023-01-28 04:40:53,819 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 04:40:53,998 INFO L130 PetriNetUnfolder]: 514/733 cut-off events. [2023-01-28 04:40:53,999 INFO L131 PetriNetUnfolder]: For 83/83 co-relation queries the response was YES. [2023-01-28 04:40:54,000 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1538 conditions, 733 events. 514/733 cut-off events. For 83/83 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 2552 event pairs, 137 based on Foata normal form. 0/508 useless extension candidates. Maximal degree in co-relation 1179. Up to 348 conditions per place. [2023-01-28 04:40:54,004 INFO L137 encePairwiseOnDemand]: 259/267 looper letters, 50 selfloop transitions, 11 changer transitions 0/62 dead transitions. [2023-01-28 04:40:54,004 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 62 transitions, 288 flow [2023-01-28 04:40:54,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-01-28 04:40:54,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-01-28 04:40:54,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 848 transitions. [2023-01-28 04:40:54,016 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3970037453183521 [2023-01-28 04:40:54,016 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 848 transitions. [2023-01-28 04:40:54,017 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 848 transitions. [2023-01-28 04:40:54,018 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 04:40:54,020 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 848 transitions. [2023-01-28 04:40:54,023 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 106.0) internal successors, (848), 8 states have internal predecessors, (848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 04:40:54,027 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 267.0) internal successors, (2403), 9 states have internal predecessors, (2403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 04:40:54,028 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 267.0) internal successors, (2403), 9 states have internal predecessors, (2403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 04:40:54,029 INFO L175 Difference]: Start difference. First operand has 30 places, 24 transitions, 66 flow. Second operand 8 states and 848 transitions. [2023-01-28 04:40:54,030 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 62 transitions, 288 flow [2023-01-28 04:40:54,032 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 62 transitions, 260 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-01-28 04:40:54,033 INFO L231 Difference]: Finished difference. Result has 35 places, 31 transitions, 118 flow [2023-01-28 04:40:54,034 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=118, PETRI_PLACES=35, PETRI_TRANSITIONS=31} [2023-01-28 04:40:54,036 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 5 predicate places. [2023-01-28 04:40:54,036 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 31 transitions, 118 flow [2023-01-28 04:40:54,037 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 100.71428571428571) internal successors, (705), 7 states have internal predecessors, (705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 04:40:54,037 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 04:40:54,037 INFO L208 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] [2023-01-28 04:40:54,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-28 04:40:54,038 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)] === [2023-01-28 04:40:54,038 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 04:40:54,038 INFO L85 PathProgramCache]: Analyzing trace with hash -1563909876, now seen corresponding path program 1 times [2023-01-28 04:40:54,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 04:40:54,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154817916] [2023-01-28 04:40:54,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 04:40:54,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 04:40:54,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 04:40:54,135 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-01-28 04:40:54,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 04:40:54,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154817916] [2023-01-28 04:40:54,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154817916] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 04:40:54,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [37707039] [2023-01-28 04:40:54,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 04:40:54,136 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 04:40:54,136 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 04:40:54,142 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-28 04:40:54,148 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-01-28 04:40:54,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 04:40:54,229 INFO L263 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 6 conjunts are in the unsatisfiable core [2023-01-28 04:40:54,232 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 04:40:54,296 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-01-28 04:40:54,297 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-28 04:40:54,337 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-01-28 04:40:54,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [37707039] provided 1 perfect and 1 imperfect interpolant sequences [2023-01-28 04:40:54,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-01-28 04:40:54,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 4] total 9 [2023-01-28 04:40:54,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16979103] [2023-01-28 04:40:54,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 04:40:54,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-01-28 04:40:54,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 04:40:54,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-01-28 04:40:54,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-01-28 04:40:54,341 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 267 [2023-01-28 04:40:54,342 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 31 transitions, 118 flow. Second operand has 5 states, 5 states have (on average 109.0) internal successors, (545), 5 states have internal predecessors, (545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 04:40:54,342 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 04:40:54,342 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 267 [2023-01-28 04:40:54,343 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 04:40:54,449 INFO L130 PetriNetUnfolder]: 451/682 cut-off events. [2023-01-28 04:40:54,449 INFO L131 PetriNetUnfolder]: For 378/418 co-relation queries the response was YES. [2023-01-28 04:40:54,451 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1938 conditions, 682 events. 451/682 cut-off events. For 378/418 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 2501 event pairs, 114 based on Foata normal form. 30/596 useless extension candidates. Maximal degree in co-relation 1921. Up to 527 conditions per place. [2023-01-28 04:40:54,454 INFO L137 encePairwiseOnDemand]: 262/267 looper letters, 37 selfloop transitions, 4 changer transitions 0/45 dead transitions. [2023-01-28 04:40:54,454 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 45 transitions, 256 flow [2023-01-28 04:40:54,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-01-28 04:40:54,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-01-28 04:40:54,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 559 transitions. [2023-01-28 04:40:54,456 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41872659176029964 [2023-01-28 04:40:54,456 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 559 transitions. [2023-01-28 04:40:54,456 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 559 transitions. [2023-01-28 04:40:54,456 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 04:40:54,456 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 559 transitions. [2023-01-28 04:40:54,457 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 111.8) internal successors, (559), 5 states have internal predecessors, (559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 04:40:54,459 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 267.0) internal successors, (1602), 6 states have internal predecessors, (1602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 04:40:54,460 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 267.0) internal successors, (1602), 6 states have internal predecessors, (1602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 04:40:54,460 INFO L175 Difference]: Start difference. First operand has 35 places, 31 transitions, 118 flow. Second operand 5 states and 559 transitions. [2023-01-28 04:40:54,460 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 45 transitions, 256 flow [2023-01-28 04:40:54,461 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 45 transitions, 245 flow, removed 5 selfloop flow, removed 1 redundant places. [2023-01-28 04:40:54,462 INFO L231 Difference]: Finished difference. Result has 39 places, 32 transitions, 127 flow [2023-01-28 04:40:54,462 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=111, PETRI_DIFFERENCE_MINUEND_PLACES=34, 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=127, PETRI_PLACES=39, PETRI_TRANSITIONS=32} [2023-01-28 04:40:54,463 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 9 predicate places. [2023-01-28 04:40:54,463 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 32 transitions, 127 flow [2023-01-28 04:40:54,463 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 109.0) internal successors, (545), 5 states have internal predecessors, (545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 04:40:54,463 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 04:40:54,463 INFO L208 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] [2023-01-28 04:40:54,472 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-01-28 04:40:54,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 04:40:54,669 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)] === [2023-01-28 04:40:54,669 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 04:40:54,669 INFO L85 PathProgramCache]: Analyzing trace with hash -1717822039, now seen corresponding path program 1 times [2023-01-28 04:40:54,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 04:40:54,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751173384] [2023-01-28 04:40:54,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 04:40:54,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 04:40:54,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 04:40:55,764 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 04:40:55,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 04:40:55,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751173384] [2023-01-28 04:40:55,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751173384] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 04:40:55,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1252823158] [2023-01-28 04:40:55,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 04:40:55,768 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 04:40:55,768 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 04:40:55,769 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-28 04:40:55,796 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-01-28 04:40:55,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 04:40:55,841 INFO L263 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 47 conjunts are in the unsatisfiable core [2023-01-28 04:40:55,843 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 04:40:55,952 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 [2023-01-28 04:40:56,038 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 [2023-01-28 04:40:56,094 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 [2023-01-28 04:40:56,138 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 [2023-01-28 04:40:56,372 INFO L321 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2023-01-28 04:40:56,373 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 73 treesize of output 59 [2023-01-28 04:40:56,544 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 04:40:56,544 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-28 04:40:57,645 WARN L839 $PredicateComparison]: unable to prove that (let ((.cse4 (<= c_~min2~0 c_~min3~0)) (.cse5 (= c_~min2~0 c_~min1~0)) (.cse6 (< c_~min3~0 c_~min2~0)) (.cse3 (+ c_~A~0.offset (* 4 c_~M~0)))) (and (forall ((v_ArrVal_113 (Array Int Int))) (let ((.cse2 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_113) c_~A~0.base))) (let ((.cse0 (select .cse2 .cse3)) (.cse1 (select .cse2 c_~A~0.offset))) (or (<= c_~min3~0 .cse0) (= .cse1 .cse0) (<= c_~min2~0 .cse0) (<= c_~min1~0 .cse1))))) (or (and (or .cse4 (= c_~min1~0 c_~min3~0)) (or .cse5 .cse6)) (forall ((v_ArrVal_113 (Array Int Int))) (let ((.cse7 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_113) c_~A~0.base))) (or (< (select .cse7 c_~A~0.offset) c_~min1~0) (< (select .cse7 .cse3) c_~min3~0))))) (or .cse4 (forall ((v_ArrVal_113 (Array Int Int))) (let ((.cse9 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_113) c_~A~0.base))) (let ((.cse8 (select .cse9 c_~A~0.offset))) (or (= .cse8 c_~min3~0) (< (select .cse9 .cse3) c_~min3~0) (<= c_~min1~0 .cse8)))))) (forall ((v_ArrVal_113 (Array Int Int))) (let ((.cse10 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_113) c_~A~0.base))) (let ((.cse11 (select .cse10 .cse3))) (or (< (select .cse10 c_~A~0.offset) c_~min1~0) (<= c_~min3~0 .cse11) (= c_~min1~0 .cse11) (<= c_~min2~0 .cse11))))) (or .cse5 (forall ((v_ArrVal_113 (Array Int Int))) (let ((.cse12 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_113) c_~A~0.base))) (let ((.cse13 (select .cse12 .cse3))) (or (< (select .cse12 c_~A~0.offset) c_~min1~0) (<= c_~min3~0 .cse13) (< .cse13 c_~min2~0)))))) (or (forall ((v_ArrVal_113 (Array Int Int))) (let ((.cse14 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_113) c_~A~0.base))) (let ((.cse15 (select .cse14 c_~A~0.offset))) (or (< (select .cse14 .cse3) c_~min3~0) (= c_~min2~0 .cse15) (<= c_~min1~0 .cse15))))) .cse6) (forall ((v_ArrVal_113 (Array Int Int))) (let ((.cse18 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_113) c_~A~0.base))) (let ((.cse17 (select .cse18 c_~A~0.offset)) (.cse16 (select .cse18 .cse3))) (or (<= c_~min3~0 .cse16) (= c_~min2~0 .cse17) (<= c_~min1~0 .cse17) (< .cse16 c_~min2~0))))))) is different from false [2023-01-28 04:40:57,835 WARN L839 $PredicateComparison]: unable to prove that (let ((.cse12 (<= c_~min2~0 c_~min3~0)) (.cse6 (= c_~min2~0 c_~min1~0)) (.cse2 (+ c_~A~0.offset (* 4 c_~M~0))) (.cse15 (< c_~min3~0 c_~min2~0))) (and (forall ((v_ArrVal_113 (Array Int Int)) (v_ArrVal_112 (Array Int Int))) (let ((.cse1 (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_112) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_113) c_~A~0.base))) (let ((.cse0 (select .cse1 .cse2))) (or (= c_~min1~0 .cse0) (<= c_~min2~0 .cse0) (<= c_~min3~0 .cse0) (< (select .cse1 c_~A~0.offset) c_~min1~0))))) (forall ((v_ArrVal_113 (Array Int Int)) (v_ArrVal_112 (Array Int Int))) (let ((.cse5 (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_112) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_113) c_~A~0.base))) (let ((.cse3 (select .cse5 c_~A~0.offset)) (.cse4 (select .cse5 .cse2))) (or (= c_~min2~0 .cse3) (<= c_~min1~0 .cse3) (< .cse4 c_~min2~0) (<= c_~min3~0 .cse4))))) (or .cse6 (forall ((v_ArrVal_113 (Array Int Int)) (v_ArrVal_112 (Array Int Int))) (let ((.cse8 (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_112) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_113) c_~A~0.base))) (let ((.cse7 (select .cse8 .cse2))) (or (< .cse7 c_~min2~0) (<= c_~min3~0 .cse7) (< (select .cse8 c_~A~0.offset) c_~min1~0)))))) (forall ((v_ArrVal_113 (Array Int Int)) (v_ArrVal_112 (Array Int Int))) (let ((.cse11 (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_112) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_113) c_~A~0.base))) (let ((.cse9 (select .cse11 c_~A~0.offset)) (.cse10 (select .cse11 .cse2))) (or (<= c_~min1~0 .cse9) (<= c_~min2~0 .cse10) (= .cse9 .cse10) (<= c_~min3~0 .cse10))))) (or .cse12 (forall ((v_ArrVal_113 (Array Int Int)) (v_ArrVal_112 (Array Int Int))) (let ((.cse14 (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_112) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_113) c_~A~0.base))) (let ((.cse13 (select .cse14 c_~A~0.offset))) (or (<= c_~min1~0 .cse13) (< (select .cse14 .cse2) c_~min3~0) (= c_~min3~0 .cse13)))))) (or (and (or .cse12 (= c_~min1~0 c_~min3~0)) (or .cse6 .cse15)) (forall ((v_ArrVal_113 (Array Int Int)) (v_ArrVal_112 (Array Int Int))) (let ((.cse16 (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_112) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_113) c_~A~0.base))) (or (< (select .cse16 .cse2) c_~min3~0) (< (select .cse16 c_~A~0.offset) c_~min1~0))))) (or (forall ((v_ArrVal_113 (Array Int Int)) (v_ArrVal_112 (Array Int Int))) (let ((.cse18 (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_112) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_113) c_~A~0.base))) (let ((.cse17 (select .cse18 c_~A~0.offset))) (or (= c_~min2~0 .cse17) (<= c_~min1~0 .cse17) (< (select .cse18 .cse2) c_~min3~0))))) .cse15))) is different from false [2023-01-28 04:40:58,801 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-01-28 04:40:58,801 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 125 treesize of output 89 [2023-01-28 04:40:58,813 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-01-28 04:40:58,813 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 541 treesize of output 521 [2023-01-28 04:40:58,831 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-01-28 04:40:58,832 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 513 treesize of output 441 [2023-01-28 04:40:58,849 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-01-28 04:40:58,850 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 433 treesize of output 401 [2023-01-28 04:40:58,873 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-01-28 04:40:58,873 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 205 treesize of output 193 [2023-01-28 04:41:00,554 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-01-28 04:41:00,555 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 121 treesize of output 85 [2023-01-28 04:41:00,571 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-01-28 04:41:00,572 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 4373 treesize of output 4185 [2023-01-28 04:41:00,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 04:41:00,653 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 237 treesize of output 221 [2023-01-28 04:41:00,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 04:41:00,666 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 418 treesize of output 354 [2023-01-28 04:41:00,684 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-01-28 04:41:00,685 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 218 treesize of output 190 [2023-01-28 04:41:01,051 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-01-28 04:41:01,051 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 89 treesize of output 65 [2023-01-28 04:41:01,062 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-01-28 04:41:01,063 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 764 treesize of output 736 [2023-01-28 04:41:01,092 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-01-28 04:41:01,093 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 350 treesize of output 314 [2023-01-28 04:41:01,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 04:41:01,107 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 152 treesize of output 142 [2023-01-28 04:41:01,121 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-01-28 04:41:01,121 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 159 treesize of output 143 [2023-01-28 04:41:01,318 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-01-28 04:41:01,319 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 93 treesize of output 69 [2023-01-28 04:41:01,333 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-01-28 04:41:01,334 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 1688 treesize of output 1612 [2023-01-28 04:41:01,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 04:41:01,373 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 184 treesize of output 156 [2023-01-28 04:41:01,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 04:41:01,383 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 156 treesize of output 142 [2023-01-28 04:41:01,499 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-01-28 04:41:01,499 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 195 treesize of output 143 [2023-01-28 04:41:01,743 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-01-28 04:41:01,743 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 61 treesize of output 49 [2023-01-28 04:41:01,766 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-01-28 04:41:01,766 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 2187 treesize of output 2095 [2023-01-28 04:41:01,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 04:41:01,799 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 119 treesize of output 111 [2023-01-28 04:41:01,811 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-01-28 04:41:01,811 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 235 treesize of output 207 [2023-01-28 04:41:01,830 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-01-28 04:41:01,830 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 109 treesize of output 97 [2023-01-28 04:41:01,907 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2023-01-28 04:41:01,907 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 150 treesize of output 1 [2023-01-28 04:41:01,918 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2023-01-28 04:41:01,918 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 89 treesize of output 1 [2023-01-28 04:41:02,011 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 04:41:02,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1252823158] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-28 04:41:02,012 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-28 04:41:02,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 9] total 29 [2023-01-28 04:41:02,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416012990] [2023-01-28 04:41:02,013 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-28 04:41:02,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2023-01-28 04:41:02,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 04:41:02,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2023-01-28 04:41:02,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=689, Unknown=2, NotChecked=110, Total=930 [2023-01-28 04:41:02,017 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 267 [2023-01-28 04:41:02,019 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 32 transitions, 127 flow. Second operand has 31 states, 31 states have (on average 71.03225806451613) internal successors, (2202), 31 states have internal predecessors, (2202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 04:41:02,019 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 04:41:02,019 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 267 [2023-01-28 04:41:02,019 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 04:41:04,330 INFO L130 PetriNetUnfolder]: 1091/1613 cut-off events. [2023-01-28 04:41:04,331 INFO L131 PetriNetUnfolder]: For 1313/1313 co-relation queries the response was YES. [2023-01-28 04:41:04,333 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4932 conditions, 1613 events. 1091/1613 cut-off events. For 1313/1313 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 6171 event pairs, 160 based on Foata normal form. 17/1414 useless extension candidates. Maximal degree in co-relation 3672. Up to 999 conditions per place. [2023-01-28 04:41:04,338 INFO L137 encePairwiseOnDemand]: 255/267 looper letters, 108 selfloop transitions, 67 changer transitions 13/188 dead transitions. [2023-01-28 04:41:04,338 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 188 transitions, 1077 flow [2023-01-28 04:41:04,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-01-28 04:41:04,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2023-01-28 04:41:04,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 1906 transitions. [2023-01-28 04:41:04,343 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.2855430711610487 [2023-01-28 04:41:04,343 INFO L72 ComplementDD]: Start complementDD. Operand 25 states and 1906 transitions. [2023-01-28 04:41:04,343 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 1906 transitions. [2023-01-28 04:41:04,344 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 04:41:04,344 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 25 states and 1906 transitions. [2023-01-28 04:41:04,347 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 26 states, 25 states have (on average 76.24) internal successors, (1906), 25 states have internal predecessors, (1906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 04:41:04,354 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 26 states, 26 states have (on average 267.0) internal successors, (6942), 26 states have internal predecessors, (6942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 04:41:04,355 INFO L81 ComplementDD]: Finished complementDD. Result has 26 states, 26 states have (on average 267.0) internal successors, (6942), 26 states have internal predecessors, (6942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 04:41:04,355 INFO L175 Difference]: Start difference. First operand has 39 places, 32 transitions, 127 flow. Second operand 25 states and 1906 transitions. [2023-01-28 04:41:04,355 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 188 transitions, 1077 flow [2023-01-28 04:41:04,361 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 188 transitions, 1016 flow, removed 16 selfloop flow, removed 3 redundant places. [2023-01-28 04:41:04,363 INFO L231 Difference]: Finished difference. Result has 73 places, 96 transitions, 619 flow [2023-01-28 04:41:04,364 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=119, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=619, PETRI_PLACES=73, PETRI_TRANSITIONS=96} [2023-01-28 04:41:04,364 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 43 predicate places. [2023-01-28 04:41:04,365 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 96 transitions, 619 flow [2023-01-28 04:41:04,365 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 71.03225806451613) internal successors, (2202), 31 states have internal predecessors, (2202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 04:41:04,365 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 04:41:04,365 INFO L208 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] [2023-01-28 04:41:04,370 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-01-28 04:41:04,570 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,SelfDestructingSolverStorable2 [2023-01-28 04:41:04,570 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)] === [2023-01-28 04:41:04,570 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 04:41:04,571 INFO L85 PathProgramCache]: Analyzing trace with hash -1797774933, now seen corresponding path program 2 times [2023-01-28 04:41:04,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 04:41:04,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400708248] [2023-01-28 04:41:04,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 04:41:04,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 04:41:04,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 04:41:05,148 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 04:41:05,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 04:41:05,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400708248] [2023-01-28 04:41:05,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400708248] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 04:41:05,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [76969851] [2023-01-28 04:41:05,149 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-01-28 04:41:05,149 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 04:41:05,149 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 04:41:05,151 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-28 04:41:05,152 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-01-28 04:41:05,249 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-01-28 04:41:05,249 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-28 04:41:05,250 INFO L263 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 34 conjunts are in the unsatisfiable core [2023-01-28 04:41:05,254 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 04:41:05,538 INFO L173 IndexEqualityManager]: detected equality via solver [2023-01-28 04:41:05,540 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-01-28 04:41:05,540 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 64 treesize of output 37 [2023-01-28 04:41:05,671 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 04:41:05,672 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-28 04:41:05,875 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-01-28 04:41:05,875 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 125 treesize of output 69 [2023-01-28 04:41:06,148 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 04:41:06,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [76969851] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-28 04:41:06,148 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-28 04:41:06,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 21 [2023-01-28 04:41:06,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57623393] [2023-01-28 04:41:06,149 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-28 04:41:06,149 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-01-28 04:41:06,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 04:41:06,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-01-28 04:41:06,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=411, Unknown=0, NotChecked=0, Total=506 [2023-01-28 04:41:06,152 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 267 [2023-01-28 04:41:06,154 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 96 transitions, 619 flow. Second operand has 23 states, 23 states have (on average 84.6086956521739) internal successors, (1946), 23 states have internal predecessors, (1946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 04:41:06,154 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 04:41:06,154 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 267 [2023-01-28 04:41:06,154 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 04:41:07,069 INFO L130 PetriNetUnfolder]: 1348/2024 cut-off events. [2023-01-28 04:41:07,069 INFO L131 PetriNetUnfolder]: For 4141/4189 co-relation queries the response was YES. [2023-01-28 04:41:07,075 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7802 conditions, 2024 events. 1348/2024 cut-off events. For 4141/4189 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 8962 event pairs, 148 based on Foata normal form. 43/2055 useless extension candidates. Maximal degree in co-relation 7735. Up to 1321 conditions per place. [2023-01-28 04:41:07,085 INFO L137 encePairwiseOnDemand]: 255/267 looper letters, 109 selfloop transitions, 69 changer transitions 4/189 dead transitions. [2023-01-28 04:41:07,085 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 189 transitions, 1397 flow [2023-01-28 04:41:07,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-01-28 04:41:07,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-01-28 04:41:07,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1014 transitions. [2023-01-28 04:41:07,089 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3452502553626149 [2023-01-28 04:41:07,089 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1014 transitions. [2023-01-28 04:41:07,089 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1014 transitions. [2023-01-28 04:41:07,089 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 04:41:07,089 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1014 transitions. [2023-01-28 04:41:07,091 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 92.18181818181819) internal successors, (1014), 11 states have internal predecessors, (1014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 04:41:07,095 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 267.0) internal successors, (3204), 12 states have internal predecessors, (3204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 04:41:07,095 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 267.0) internal successors, (3204), 12 states have internal predecessors, (3204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 04:41:07,096 INFO L175 Difference]: Start difference. First operand has 73 places, 96 transitions, 619 flow. Second operand 11 states and 1014 transitions. [2023-01-28 04:41:07,096 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 189 transitions, 1397 flow [2023-01-28 04:41:07,109 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 189 transitions, 1376 flow, removed 8 selfloop flow, removed 2 redundant places. [2023-01-28 04:41:07,113 INFO L231 Difference]: Finished difference. Result has 86 places, 128 transitions, 1055 flow [2023-01-28 04:41:07,113 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=598, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1055, PETRI_PLACES=86, PETRI_TRANSITIONS=128} [2023-01-28 04:41:07,115 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 56 predicate places. [2023-01-28 04:41:07,115 INFO L495 AbstractCegarLoop]: Abstraction has has 86 places, 128 transitions, 1055 flow [2023-01-28 04:41:07,115 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 84.6086956521739) internal successors, (1946), 23 states have internal predecessors, (1946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 04:41:07,116 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 04:41:07,117 INFO L208 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] [2023-01-28 04:41:07,125 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-01-28 04:41:07,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 04:41:07,324 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)] === [2023-01-28 04:41:07,324 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 04:41:07,324 INFO L85 PathProgramCache]: Analyzing trace with hash 184588913, now seen corresponding path program 3 times [2023-01-28 04:41:07,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 04:41:07,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555573650] [2023-01-28 04:41:07,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 04:41:07,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 04:41:07,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 04:41:08,058 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 04:41:08,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 04:41:08,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555573650] [2023-01-28 04:41:08,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555573650] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 04:41:08,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1721092214] [2023-01-28 04:41:08,062 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-01-28 04:41:08,062 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 04:41:08,062 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 04:41:08,063 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-28 04:41:08,071 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-01-28 04:41:08,159 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-01-28 04:41:08,159 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-28 04:41:08,161 INFO L263 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 39 conjunts are in the unsatisfiable core [2023-01-28 04:41:08,163 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 04:41:08,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 04:41:08,442 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 34 treesize of output 32 [2023-01-28 04:41:08,574 INFO L173 IndexEqualityManager]: detected equality via solver [2023-01-28 04:41:08,576 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-01-28 04:41:08,576 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 64 treesize of output 37 [2023-01-28 04:41:08,640 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 04:41:08,640 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-28 04:41:09,103 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-01-28 04:41:09,103 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 241 treesize of output 177 [2023-01-28 04:41:09,108 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 147 treesize of output 141 [2023-01-28 04:41:09,112 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 141 treesize of output 129 [2023-01-28 04:41:09,116 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 129 treesize of output 111 [2023-01-28 04:41:09,552 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 04:41:09,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1721092214] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-28 04:41:09,553 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-28 04:41:09,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8, 8] total 26 [2023-01-28 04:41:09,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482976771] [2023-01-28 04:41:09,553 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-28 04:41:09,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-01-28 04:41:09,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 04:41:09,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-01-28 04:41:09,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=650, Unknown=2, NotChecked=0, Total=756 [2023-01-28 04:41:09,555 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 267 [2023-01-28 04:41:09,557 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 128 transitions, 1055 flow. Second operand has 28 states, 28 states have (on average 77.28571428571429) internal successors, (2164), 28 states have internal predecessors, (2164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 04:41:09,557 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 04:41:09,557 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 267 [2023-01-28 04:41:09,557 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 04:41:12,969 INFO L130 PetriNetUnfolder]: 2159/3216 cut-off events. [2023-01-28 04:41:12,970 INFO L131 PetriNetUnfolder]: For 10698/10698 co-relation queries the response was YES. [2023-01-28 04:41:12,976 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14353 conditions, 3216 events. 2159/3216 cut-off events. For 10698/10698 co-relation queries the response was YES. Maximal size of possible extension queue 159. Compared 15069 event pairs, 161 based on Foata normal form. 44/3260 useless extension candidates. Maximal degree in co-relation 14314. Up to 1871 conditions per place. [2023-01-28 04:41:12,988 INFO L137 encePairwiseOnDemand]: 254/267 looper letters, 196 selfloop transitions, 121 changer transitions 2/319 dead transitions. [2023-01-28 04:41:12,988 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 319 transitions, 2747 flow [2023-01-28 04:41:12,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-01-28 04:41:12,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2023-01-28 04:41:12,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 1707 transitions. [2023-01-28 04:41:12,992 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3196629213483146 [2023-01-28 04:41:12,992 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 1707 transitions. [2023-01-28 04:41:12,992 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 1707 transitions. [2023-01-28 04:41:12,993 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 04:41:12,993 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 1707 transitions. [2023-01-28 04:41:12,995 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 85.35) internal successors, (1707), 20 states have internal predecessors, (1707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 04:41:12,999 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 267.0) internal successors, (5607), 21 states have internal predecessors, (5607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 04:41:13,000 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 267.0) internal successors, (5607), 21 states have internal predecessors, (5607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 04:41:13,000 INFO L175 Difference]: Start difference. First operand has 86 places, 128 transitions, 1055 flow. Second operand 20 states and 1707 transitions. [2023-01-28 04:41:13,000 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 319 transitions, 2747 flow [2023-01-28 04:41:13,031 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 319 transitions, 2714 flow, removed 14 selfloop flow, removed 2 redundant places. [2023-01-28 04:41:13,036 INFO L231 Difference]: Finished difference. Result has 112 places, 192 transitions, 1994 flow [2023-01-28 04:41:13,037 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=1026, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=65, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=1994, PETRI_PLACES=112, PETRI_TRANSITIONS=192} [2023-01-28 04:41:13,038 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 82 predicate places. [2023-01-28 04:41:13,039 INFO L495 AbstractCegarLoop]: Abstraction has has 112 places, 192 transitions, 1994 flow [2023-01-28 04:41:13,039 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 77.28571428571429) internal successors, (2164), 28 states have internal predecessors, (2164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 04:41:13,039 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 04:41:13,040 INFO L208 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] [2023-01-28 04:41:13,045 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-01-28 04:41:13,244 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 04:41:13,244 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)] === [2023-01-28 04:41:13,244 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 04:41:13,245 INFO L85 PathProgramCache]: Analyzing trace with hash -542212045, now seen corresponding path program 4 times [2023-01-28 04:41:13,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 04:41:13,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329258967] [2023-01-28 04:41:13,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 04:41:13,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 04:41:13,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 04:41:13,817 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 04:41:13,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 04:41:13,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329258967] [2023-01-28 04:41:13,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329258967] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 04:41:13,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [247195858] [2023-01-28 04:41:13,817 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-01-28 04:41:13,817 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 04:41:13,818 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 04:41:13,818 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-28 04:41:13,820 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-01-28 04:41:13,890 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-01-28 04:41:13,890 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-28 04:41:13,891 INFO L263 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 30 conjunts are in the unsatisfiable core [2023-01-28 04:41:13,893 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 04:41:14,306 INFO L321 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2023-01-28 04:41:14,307 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 77 treesize of output 63 [2023-01-28 04:41:14,453 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-01-28 04:41:14,454 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-28 04:41:14,722 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-01-28 04:41:14,723 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 117 treesize of output 69 [2023-01-28 04:41:15,057 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-01-28 04:41:15,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [247195858] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-28 04:41:15,059 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-28 04:41:15,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9, 7] total 23 [2023-01-28 04:41:15,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387752568] [2023-01-28 04:41:15,059 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-28 04:41:15,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-01-28 04:41:15,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 04:41:15,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-01-28 04:41:15,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=522, Unknown=0, NotChecked=0, Total=600 [2023-01-28 04:41:15,063 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 267 [2023-01-28 04:41:15,064 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 192 transitions, 1994 flow. Second operand has 25 states, 25 states have (on average 81.48) internal successors, (2037), 25 states have internal predecessors, (2037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 04:41:15,064 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 04:41:15,064 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 267 [2023-01-28 04:41:15,064 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 04:41:18,182 INFO L130 PetriNetUnfolder]: 3690/5659 cut-off events. [2023-01-28 04:41:18,182 INFO L131 PetriNetUnfolder]: For 33384/33384 co-relation queries the response was YES. [2023-01-28 04:41:18,197 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29048 conditions, 5659 events. 3690/5659 cut-off events. For 33384/33384 co-relation queries the response was YES. Maximal size of possible extension queue 294. Compared 31189 event pairs, 190 based on Foata normal form. 7/5666 useless extension candidates. Maximal degree in co-relation 28999. Up to 2351 conditions per place. [2023-01-28 04:41:18,224 INFO L137 encePairwiseOnDemand]: 252/267 looper letters, 294 selfloop transitions, 282 changer transitions 36/612 dead transitions. [2023-01-28 04:41:18,224 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 612 transitions, 6418 flow [2023-01-28 04:41:18,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2023-01-28 04:41:18,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2023-01-28 04:41:18,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 3986 transitions. [2023-01-28 04:41:18,241 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.32453997720241 [2023-01-28 04:41:18,241 INFO L72 ComplementDD]: Start complementDD. Operand 46 states and 3986 transitions. [2023-01-28 04:41:18,241 INFO L73 IsDeterministic]: Start isDeterministic. Operand 46 states and 3986 transitions. [2023-01-28 04:41:18,243 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 04:41:18,243 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 46 states and 3986 transitions. [2023-01-28 04:41:18,248 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 47 states, 46 states have (on average 86.65217391304348) internal successors, (3986), 46 states have internal predecessors, (3986), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 04:41:18,359 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 47 states, 47 states have (on average 267.0) internal successors, (12549), 47 states have internal predecessors, (12549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 04:41:18,361 INFO L81 ComplementDD]: Finished complementDD. Result has 47 states, 47 states have (on average 267.0) internal successors, (12549), 47 states have internal predecessors, (12549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 04:41:18,361 INFO L175 Difference]: Start difference. First operand has 112 places, 192 transitions, 1994 flow. Second operand 46 states and 3986 transitions. [2023-01-28 04:41:18,361 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 612 transitions, 6418 flow [2023-01-28 04:41:18,455 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 612 transitions, 6068 flow, removed 153 selfloop flow, removed 7 redundant places. [2023-01-28 04:41:18,461 INFO L231 Difference]: Finished difference. Result has 178 places, 398 transitions, 4869 flow [2023-01-28 04:41:18,462 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=1818, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=192, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=98, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=46, PETRI_FLOW=4869, PETRI_PLACES=178, PETRI_TRANSITIONS=398} [2023-01-28 04:41:18,462 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 148 predicate places. [2023-01-28 04:41:18,462 INFO L495 AbstractCegarLoop]: Abstraction has has 178 places, 398 transitions, 4869 flow [2023-01-28 04:41:18,463 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 81.48) internal successors, (2037), 25 states have internal predecessors, (2037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 04:41:18,463 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 04:41:18,463 INFO L208 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] [2023-01-28 04:41:18,469 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-01-28 04:41:18,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 04:41:18,668 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)] === [2023-01-28 04:41:18,668 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 04:41:18,668 INFO L85 PathProgramCache]: Analyzing trace with hash 1208376447, now seen corresponding path program 5 times [2023-01-28 04:41:18,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 04:41:18,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324315198] [2023-01-28 04:41:18,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 04:41:18,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 04:41:18,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 04:41:19,391 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 04:41:19,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 04:41:19,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324315198] [2023-01-28 04:41:19,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324315198] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 04:41:19,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [656386457] [2023-01-28 04:41:19,391 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-01-28 04:41:19,391 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 04:41:19,392 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 04:41:19,392 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-28 04:41:19,395 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-01-28 04:41:19,461 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2023-01-28 04:41:19,461 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-28 04:41:19,462 INFO L263 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 31 conjunts are in the unsatisfiable core [2023-01-28 04:41:19,463 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 04:41:19,661 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-01-28 04:41:19,662 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 77 treesize of output 71 [2023-01-28 04:41:20,084 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-01-28 04:41:20,084 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-28 04:41:20,329 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-01-28 04:41:20,330 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 117 treesize of output 65 [2023-01-28 04:41:20,474 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-01-28 04:41:20,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [656386457] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-28 04:41:20,475 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-28 04:41:20,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 7, 5] total 21 [2023-01-28 04:41:20,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986705412] [2023-01-28 04:41:20,475 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-28 04:41:20,475 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-01-28 04:41:20,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 04:41:20,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-01-28 04:41:20,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2023-01-28 04:41:20,477 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 267 [2023-01-28 04:41:20,479 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 178 places, 398 transitions, 4869 flow. Second operand has 23 states, 23 states have (on average 78.6086956521739) internal successors, (1808), 23 states have internal predecessors, (1808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 04:41:20,479 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 04:41:20,479 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 267 [2023-01-28 04:41:20,479 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 04:41:23,006 INFO L130 PetriNetUnfolder]: 4546/7224 cut-off events. [2023-01-28 04:41:23,006 INFO L131 PetriNetUnfolder]: For 101225/101596 co-relation queries the response was YES. [2023-01-28 04:41:23,034 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48306 conditions, 7224 events. 4546/7224 cut-off events. For 101225/101596 co-relation queries the response was YES. Maximal size of possible extension queue 419. Compared 44972 event pairs, 486 based on Foata normal form. 227/7432 useless extension candidates. Maximal degree in co-relation 48230. Up to 4394 conditions per place. [2023-01-28 04:41:23,066 INFO L137 encePairwiseOnDemand]: 253/267 looper letters, 298 selfloop transitions, 339 changer transitions 14/672 dead transitions. [2023-01-28 04:41:23,066 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 199 places, 672 transitions, 9216 flow [2023-01-28 04:41:23,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-01-28 04:41:23,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2023-01-28 04:41:23,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 2015 transitions. [2023-01-28 04:41:23,070 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3144506866416979 [2023-01-28 04:41:23,070 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 2015 transitions. [2023-01-28 04:41:23,070 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 2015 transitions. [2023-01-28 04:41:23,071 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 04:41:23,071 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 2015 transitions. [2023-01-28 04:41:23,076 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 83.95833333333333) internal successors, (2015), 24 states have internal predecessors, (2015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 04:41:23,080 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 267.0) internal successors, (6675), 25 states have internal predecessors, (6675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 04:41:23,094 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 267.0) internal successors, (6675), 25 states have internal predecessors, (6675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 04:41:23,094 INFO L175 Difference]: Start difference. First operand has 178 places, 398 transitions, 4869 flow. Second operand 24 states and 2015 transitions. [2023-01-28 04:41:23,094 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 199 places, 672 transitions, 9216 flow [2023-01-28 04:41:23,503 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 192 places, 672 transitions, 8312 flow, removed 436 selfloop flow, removed 7 redundant places. [2023-01-28 04:41:23,511 INFO L231 Difference]: Finished difference. Result has 199 places, 572 transitions, 7408 flow [2023-01-28 04:41:23,512 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=4325, PETRI_DIFFERENCE_MINUEND_PLACES=169, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=398, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=187, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=7408, PETRI_PLACES=199, PETRI_TRANSITIONS=572} [2023-01-28 04:41:23,512 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 169 predicate places. [2023-01-28 04:41:23,512 INFO L495 AbstractCegarLoop]: Abstraction has has 199 places, 572 transitions, 7408 flow [2023-01-28 04:41:23,513 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 78.6086956521739) internal successors, (1808), 23 states have internal predecessors, (1808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 04:41:23,513 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 04:41:23,513 INFO L208 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] [2023-01-28 04:41:23,546 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-01-28 04:41:23,716 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 04:41:23,717 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)] === [2023-01-28 04:41:23,717 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 04:41:23,717 INFO L85 PathProgramCache]: Analyzing trace with hash -1180941759, now seen corresponding path program 6 times [2023-01-28 04:41:23,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 04:41:23,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092286133] [2023-01-28 04:41:23,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 04:41:23,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 04:41:23,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 04:41:24,243 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 04:41:24,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 04:41:24,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092286133] [2023-01-28 04:41:24,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092286133] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 04:41:24,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [414674744] [2023-01-28 04:41:24,243 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-01-28 04:41:24,243 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 04:41:24,244 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 04:41:24,245 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-28 04:41:24,271 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-01-28 04:41:24,321 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2023-01-28 04:41:24,321 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-28 04:41:24,322 INFO L263 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 34 conjunts are in the unsatisfiable core [2023-01-28 04:41:24,323 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 04:41:24,628 INFO L321 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2023-01-28 04:41:24,628 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 73 treesize of output 59 [2023-01-28 04:41:24,760 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 04:41:24,760 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-28 04:41:24,960 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-01-28 04:41:24,960 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 101 treesize of output 69 [2023-01-28 04:41:25,224 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 04:41:25,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [414674744] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-28 04:41:25,225 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-28 04:41:25,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 7, 7] total 24 [2023-01-28 04:41:25,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950735545] [2023-01-28 04:41:25,225 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-28 04:41:25,225 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-01-28 04:41:25,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 04:41:25,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-01-28 04:41:25,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=535, Unknown=0, NotChecked=0, Total=650 [2023-01-28 04:41:25,228 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 267 [2023-01-28 04:41:25,229 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 199 places, 572 transitions, 7408 flow. Second operand has 26 states, 26 states have (on average 81.65384615384616) internal successors, (2123), 26 states have internal predecessors, (2123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 04:41:25,229 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 04:41:25,229 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 267 [2023-01-28 04:41:25,229 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 04:41:27,993 INFO L130 PetriNetUnfolder]: 5457/8532 cut-off events. [2023-01-28 04:41:27,993 INFO L131 PetriNetUnfolder]: For 139401/139401 co-relation queries the response was YES. [2023-01-28 04:41:28,054 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61020 conditions, 8532 events. 5457/8532 cut-off events. For 139401/139401 co-relation queries the response was YES. Maximal size of possible extension queue 454. Compared 51665 event pairs, 1042 based on Foata normal form. 5/8537 useless extension candidates. Maximal degree in co-relation 60938. Up to 7397 conditions per place. [2023-01-28 04:41:28,092 INFO L137 encePairwiseOnDemand]: 254/267 looper letters, 557 selfloop transitions, 185 changer transitions 17/759 dead transitions. [2023-01-28 04:41:28,092 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 228 places, 759 transitions, 10998 flow [2023-01-28 04:41:28,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-01-28 04:41:28,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2023-01-28 04:41:28,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 2580 transitions. [2023-01-28 04:41:28,096 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.32209737827715357 [2023-01-28 04:41:28,096 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 2580 transitions. [2023-01-28 04:41:28,096 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 2580 transitions. [2023-01-28 04:41:28,097 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 04:41:28,097 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 2580 transitions. [2023-01-28 04:41:28,100 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 31 states, 30 states have (on average 86.0) internal successors, (2580), 30 states have internal predecessors, (2580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 04:41:28,106 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 31 states, 31 states have (on average 267.0) internal successors, (8277), 31 states have internal predecessors, (8277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 04:41:28,107 INFO L81 ComplementDD]: Finished complementDD. Result has 31 states, 31 states have (on average 267.0) internal successors, (8277), 31 states have internal predecessors, (8277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 04:41:28,107 INFO L175 Difference]: Start difference. First operand has 199 places, 572 transitions, 7408 flow. Second operand 30 states and 2580 transitions. [2023-01-28 04:41:28,107 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 228 places, 759 transitions, 10998 flow [2023-01-28 04:41:28,692 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 222 places, 759 transitions, 10246 flow, removed 338 selfloop flow, removed 6 redundant places. [2023-01-28 04:41:28,701 INFO L231 Difference]: Finished difference. Result has 233 places, 645 transitions, 8388 flow [2023-01-28 04:41:28,701 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=6885, PETRI_DIFFERENCE_MINUEND_PLACES=193, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=572, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=127, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=424, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=8388, PETRI_PLACES=233, PETRI_TRANSITIONS=645} [2023-01-28 04:41:28,702 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 203 predicate places. [2023-01-28 04:41:28,702 INFO L495 AbstractCegarLoop]: Abstraction has has 233 places, 645 transitions, 8388 flow [2023-01-28 04:41:28,702 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 81.65384615384616) internal successors, (2123), 26 states have internal predecessors, (2123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 04:41:28,703 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 04:41:28,703 INFO L208 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] [2023-01-28 04:41:28,707 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-01-28 04:41:28,907 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 04:41:28,907 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)] === [2023-01-28 04:41:28,908 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 04:41:28,908 INFO L85 PathProgramCache]: Analyzing trace with hash 1868694365, now seen corresponding path program 7 times [2023-01-28 04:41:28,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 04:41:28,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966430900] [2023-01-28 04:41:28,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 04:41:28,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 04:41:28,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 04:41:30,153 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 04:41:30,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 04:41:30,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966430900] [2023-01-28 04:41:30,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966430900] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 04:41:30,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1949413046] [2023-01-28 04:41:30,154 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-01-28 04:41:30,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 04:41:30,154 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 04:41:30,161 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-28 04:41:30,161 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-01-28 04:41:30,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 04:41:30,253 INFO L263 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 43 conjunts are in the unsatisfiable core [2023-01-28 04:41:30,255 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 04:41:30,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 04:41:30,589 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 34 treesize of output 32 [2023-01-28 04:41:30,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 04:41:30,664 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 34 treesize of output 32 [2023-01-28 04:41:30,845 INFO L173 IndexEqualityManager]: detected equality via solver [2023-01-28 04:41:30,848 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-01-28 04:41:30,848 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 64 treesize of output 37 [2023-01-28 04:41:30,952 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 04:41:30,953 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-28 04:41:31,246 WARN L839 $PredicateComparison]: unable to prove that (let ((.cse0 (= c_~min2~0 c_~min1~0)) (.cse2 (+ c_~A~0.offset (* 4 c_~M~0)))) (and (or .cse0 (forall ((v_ArrVal_380 (Array Int Int))) (let ((.cse1 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_380) c_~A~0.base) .cse2))) (or (<= c_~min3~0 .cse1) (< .cse1 c_~min2~0))))) (or (forall ((v_ArrVal_380 (Array Int Int))) (< (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_380) c_~A~0.base) .cse2) c_~min3~0)) (and (or (<= c_~min2~0 c_~min3~0) (= c_~min1~0 c_~min3~0)) (or .cse0 (< c_~min3~0 c_~min2~0)))) (forall ((v_ArrVal_380 (Array Int Int))) (let ((.cse3 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_380) c_~A~0.base) .cse2))) (or (<= c_~min3~0 .cse3) (<= c_~min2~0 .cse3) (= c_~min1~0 .cse3)))))) is different from false [2023-01-28 04:41:31,314 WARN L839 $PredicateComparison]: unable to prove that (let ((.cse0 (= c_~min2~0 c_~min1~0)) (.cse1 (+ c_~A~0.offset (* 4 c_~M~0)))) (and (or (and (or (<= c_~min2~0 c_~min3~0) (= c_~min1~0 c_~min3~0)) (or .cse0 (< c_~min3~0 c_~min2~0))) (forall ((v_ArrVal_380 (Array Int Int)) (v_ArrVal_379 (Array Int Int))) (< (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_379) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_380) c_~A~0.base) .cse1) c_~min3~0))) (forall ((v_ArrVal_380 (Array Int Int)) (v_ArrVal_379 (Array Int Int))) (let ((.cse2 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_379) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_380) c_~A~0.base) .cse1))) (or (<= c_~min2~0 .cse2) (= c_~min1~0 .cse2) (<= c_~min3~0 .cse2)))) (or .cse0 (forall ((v_ArrVal_380 (Array Int Int)) (v_ArrVal_379 (Array Int Int))) (let ((.cse3 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_379) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_380) c_~A~0.base) .cse1))) (or (< .cse3 c_~min2~0) (<= c_~min3~0 .cse3))))))) is different from false [2023-01-28 04:41:31,360 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-01-28 04:41:31,360 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 938 treesize of output 826 [2023-01-28 04:41:31,377 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 376 treesize of output 364 [2023-01-28 04:41:31,382 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 364 treesize of output 340 [2023-01-28 04:41:31,388 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 340 treesize of output 322 [2023-01-28 04:41:31,393 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 322 treesize of output 286 [2023-01-28 04:41:31,398 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 286 treesize of output 280 [2023-01-28 04:41:31,404 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 280 treesize of output 268 [2023-01-28 04:41:31,574 INFO L208 tifierPushTermWalker]: Run 10 iterations without descend maybe there is a nontermination bug. [2023-01-28 04:41:31,813 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2023-01-28 04:41:31,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1949413046] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-28 04:41:31,814 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-28 04:41:31,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 9] total 29 [2023-01-28 04:41:31,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674255519] [2023-01-28 04:41:31,814 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-28 04:41:31,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2023-01-28 04:41:31,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 04:41:31,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2023-01-28 04:41:31,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=142, Invalid=676, Unknown=2, NotChecked=110, Total=930 [2023-01-28 04:41:31,817 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 267 [2023-01-28 04:41:31,818 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 233 places, 645 transitions, 8388 flow. Second operand has 31 states, 31 states have (on average 71.2258064516129) internal successors, (2208), 31 states have internal predecessors, (2208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 04:41:31,818 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 04:41:31,818 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 267 [2023-01-28 04:41:31,818 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 04:41:35,144 INFO L130 PetriNetUnfolder]: 6791/10601 cut-off events. [2023-01-28 04:41:35,144 INFO L131 PetriNetUnfolder]: For 166112/166112 co-relation queries the response was YES. [2023-01-28 04:41:35,190 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76019 conditions, 10601 events. 6791/10601 cut-off events. For 166112/166112 co-relation queries the response was YES. Maximal size of possible extension queue 561. Compared 66582 event pairs, 805 based on Foata normal form. 4/10605 useless extension candidates. Maximal degree in co-relation 75925. Up to 6807 conditions per place. [2023-01-28 04:41:35,237 INFO L137 encePairwiseOnDemand]: 251/267 looper letters, 550 selfloop transitions, 409 changer transitions 8/967 dead transitions. [2023-01-28 04:41:35,237 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 253 places, 967 transitions, 14279 flow [2023-01-28 04:41:35,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-01-28 04:41:35,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2023-01-28 04:41:35,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1660 transitions. [2023-01-28 04:41:35,240 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.2960584983056893 [2023-01-28 04:41:35,240 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 1660 transitions. [2023-01-28 04:41:35,240 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 1660 transitions. [2023-01-28 04:41:35,241 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 04:41:35,241 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 1660 transitions. [2023-01-28 04:41:35,243 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 79.04761904761905) internal successors, (1660), 21 states have internal predecessors, (1660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 04:41:35,246 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 267.0) internal successors, (5874), 22 states have internal predecessors, (5874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 04:41:35,246 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 267.0) internal successors, (5874), 22 states have internal predecessors, (5874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 04:41:35,246 INFO L175 Difference]: Start difference. First operand has 233 places, 645 transitions, 8388 flow. Second operand 21 states and 1660 transitions. [2023-01-28 04:41:35,247 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 253 places, 967 transitions, 14279 flow [2023-01-28 04:41:35,923 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 241 places, 967 transitions, 13867 flow, removed 165 selfloop flow, removed 12 redundant places. [2023-01-28 04:41:35,934 INFO L231 Difference]: Finished difference. Result has 252 places, 825 transitions, 12220 flow [2023-01-28 04:41:35,934 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=7985, PETRI_DIFFERENCE_MINUEND_PLACES=221, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=645, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=257, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=343, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=12220, PETRI_PLACES=252, PETRI_TRANSITIONS=825} [2023-01-28 04:41:35,935 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 222 predicate places. [2023-01-28 04:41:35,935 INFO L495 AbstractCegarLoop]: Abstraction has has 252 places, 825 transitions, 12220 flow [2023-01-28 04:41:35,935 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 71.2258064516129) internal successors, (2208), 31 states have internal predecessors, (2208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 04:41:35,935 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 04:41:35,935 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 04:41:35,955 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-01-28 04:41:36,139 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2023-01-28 04:41:36,140 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)] === [2023-01-28 04:41:36,141 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 04:41:36,141 INFO L85 PathProgramCache]: Analyzing trace with hash -1505548975, now seen corresponding path program 1 times [2023-01-28 04:41:36,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 04:41:36,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647497748] [2023-01-28 04:41:36,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 04:41:36,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 04:41:36,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 04:41:36,233 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-01-28 04:41:36,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 04:41:36,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647497748] [2023-01-28 04:41:36,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1647497748] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 04:41:36,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [22396297] [2023-01-28 04:41:36,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 04:41:36,234 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 04:41:36,234 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 04:41:36,235 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-28 04:41:36,267 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-01-28 04:41:36,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 04:41:36,312 INFO L263 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 9 conjunts are in the unsatisfiable core [2023-01-28 04:41:36,313 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 04:41:36,385 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-01-28 04:41:36,385 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-28 04:41:36,452 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-01-28 04:41:36,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [22396297] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-28 04:41:36,452 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-28 04:41:36,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 17 [2023-01-28 04:41:36,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690891801] [2023-01-28 04:41:36,452 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-28 04:41:36,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-01-28 04:41:36,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 04:41:36,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-01-28 04:41:36,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=237, Unknown=0, NotChecked=0, Total=306 [2023-01-28 04:41:36,454 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 267 [2023-01-28 04:41:36,455 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 252 places, 825 transitions, 12220 flow. Second operand has 18 states, 18 states have (on average 100.27777777777777) internal successors, (1805), 18 states have internal predecessors, (1805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 04:41:36,455 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 04:41:36,455 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 267 [2023-01-28 04:41:36,455 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 04:41:40,279 INFO L130 PetriNetUnfolder]: 9715/15619 cut-off events. [2023-01-28 04:41:40,280 INFO L131 PetriNetUnfolder]: For 348142/348190 co-relation queries the response was YES. [2023-01-28 04:41:40,419 INFO L83 FinitePrefix]: Finished finitePrefix Result has 125431 conditions, 15619 events. 9715/15619 cut-off events. For 348142/348190 co-relation queries the response was YES. Maximal size of possible extension queue 902. Compared 112535 event pairs, 695 based on Foata normal form. 367/15967 useless extension candidates. Maximal degree in co-relation 125326. Up to 4868 conditions per place. [2023-01-28 04:41:40,518 INFO L137 encePairwiseOnDemand]: 258/267 looper letters, 1468 selfloop transitions, 411 changer transitions 30/1924 dead transitions. [2023-01-28 04:41:40,518 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 271 places, 1924 transitions, 30393 flow [2023-01-28 04:41:40,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-01-28 04:41:40,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2023-01-28 04:41:40,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2149 transitions. [2023-01-28 04:41:40,521 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40243445692883895 [2023-01-28 04:41:40,521 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2149 transitions. [2023-01-28 04:41:40,521 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2149 transitions. [2023-01-28 04:41:40,521 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 04:41:40,521 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2149 transitions. [2023-01-28 04:41:40,523 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 107.45) internal successors, (2149), 20 states have internal predecessors, (2149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 04:41:40,526 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 267.0) internal successors, (5607), 21 states have internal predecessors, (5607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 04:41:40,527 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 267.0) internal successors, (5607), 21 states have internal predecessors, (5607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 04:41:40,527 INFO L175 Difference]: Start difference. First operand has 252 places, 825 transitions, 12220 flow. Second operand 20 states and 2149 transitions. [2023-01-28 04:41:40,527 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 271 places, 1924 transitions, 30393 flow [2023-01-28 04:41:42,578 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 263 places, 1924 transitions, 29407 flow, removed 403 selfloop flow, removed 8 redundant places. [2023-01-28 04:41:42,597 INFO L231 Difference]: Finished difference. Result has 275 places, 1064 transitions, 17268 flow [2023-01-28 04:41:42,597 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=11572, PETRI_DIFFERENCE_MINUEND_PLACES=244, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=825, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=199, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=569, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=17268, PETRI_PLACES=275, PETRI_TRANSITIONS=1064} [2023-01-28 04:41:42,598 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 245 predicate places. [2023-01-28 04:41:42,598 INFO L495 AbstractCegarLoop]: Abstraction has has 275 places, 1064 transitions, 17268 flow [2023-01-28 04:41:42,598 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 100.27777777777777) internal successors, (1805), 18 states have internal predecessors, (1805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 04:41:42,598 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 04:41:42,598 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 04:41:42,603 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-01-28 04:41:42,802 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-01-28 04:41:42,803 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)] === [2023-01-28 04:41:42,803 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 04:41:42,803 INFO L85 PathProgramCache]: Analyzing trace with hash 17771202, now seen corresponding path program 8 times [2023-01-28 04:41:42,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 04:41:42,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752215422] [2023-01-28 04:41:42,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 04:41:42,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 04:41:42,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 04:41:42,877 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 04:41:42,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 04:41:42,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752215422] [2023-01-28 04:41:42,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752215422] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 04:41:42,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1147747499] [2023-01-28 04:41:42,877 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-01-28 04:41:42,877 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 04:41:42,877 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 04:41:42,881 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-28 04:41:42,883 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-01-28 04:41:42,983 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-01-28 04:41:42,983 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-28 04:41:42,984 INFO L263 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 8 conjunts are in the unsatisfiable core [2023-01-28 04:41:42,985 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 04:41:43,041 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 04:41:43,041 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-28 04:41:43,085 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 04:41:43,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1147747499] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-28 04:41:43,086 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-28 04:41:43,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 14 [2023-01-28 04:41:43,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973551405] [2023-01-28 04:41:43,086 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-28 04:41:43,086 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-01-28 04:41:43,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 04:41:43,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-01-28 04:41:43,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2023-01-28 04:41:43,087 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 267 [2023-01-28 04:41:43,088 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 275 places, 1064 transitions, 17268 flow. Second operand has 15 states, 15 states have (on average 107.8) internal successors, (1617), 15 states have internal predecessors, (1617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 04:41:43,088 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 04:41:43,088 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 267 [2023-01-28 04:41:43,088 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 04:41:46,356 INFO L130 PetriNetUnfolder]: 7736/12414 cut-off events. [2023-01-28 04:41:46,356 INFO L131 PetriNetUnfolder]: For 347597/349075 co-relation queries the response was YES. [2023-01-28 04:41:46,417 INFO L83 FinitePrefix]: Finished finitePrefix Result has 107449 conditions, 12414 events. 7736/12414 cut-off events. For 347597/349075 co-relation queries the response was YES. Maximal size of possible extension queue 837. Compared 86997 event pairs, 2257 based on Foata normal form. 929/13019 useless extension candidates. Maximal degree in co-relation 107332. Up to 9471 conditions per place. [2023-01-28 04:41:46,466 INFO L137 encePairwiseOnDemand]: 262/267 looper letters, 859 selfloop transitions, 82 changer transitions 2/1065 dead transitions. [2023-01-28 04:41:46,467 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 281 places, 1065 transitions, 19008 flow [2023-01-28 04:41:46,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-01-28 04:41:46,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-01-28 04:41:46,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 800 transitions. [2023-01-28 04:41:46,468 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42803638309256287 [2023-01-28 04:41:46,468 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 800 transitions. [2023-01-28 04:41:46,468 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 800 transitions. [2023-01-28 04:41:46,468 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 04:41:46,468 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 800 transitions. [2023-01-28 04:41:46,469 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 114.28571428571429) internal successors, (800), 7 states have internal predecessors, (800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 04:41:46,470 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 267.0) internal successors, (2136), 8 states have internal predecessors, (2136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 04:41:46,470 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 267.0) internal successors, (2136), 8 states have internal predecessors, (2136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 04:41:46,470 INFO L175 Difference]: Start difference. First operand has 275 places, 1064 transitions, 17268 flow. Second operand 7 states and 800 transitions. [2023-01-28 04:41:46,471 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 281 places, 1065 transitions, 19008 flow [2023-01-28 04:41:49,827 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 275 places, 1065 transitions, 17887 flow, removed 553 selfloop flow, removed 6 redundant places. [2023-01-28 04:41:49,840 INFO L231 Difference]: Finished difference. Result has 278 places, 982 transitions, 15302 flow [2023-01-28 04:41:49,841 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=14833, PETRI_DIFFERENCE_MINUEND_PLACES=269, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=973, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=73, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=891, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=15302, PETRI_PLACES=278, PETRI_TRANSITIONS=982} [2023-01-28 04:41:49,841 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 248 predicate places. [2023-01-28 04:41:49,841 INFO L495 AbstractCegarLoop]: Abstraction has has 278 places, 982 transitions, 15302 flow [2023-01-28 04:41:49,841 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 107.8) internal successors, (1617), 15 states have internal predecessors, (1617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 04:41:49,841 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 04:41:49,842 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 04:41:49,859 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-01-28 04:41:50,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-01-28 04:41:50,047 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)] === [2023-01-28 04:41:50,048 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 04:41:50,048 INFO L85 PathProgramCache]: Analyzing trace with hash 1595059175, now seen corresponding path program 2 times [2023-01-28 04:41:50,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 04:41:50,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878097335] [2023-01-28 04:41:50,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 04:41:50,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 04:41:50,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 04:41:50,142 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-01-28 04:41:50,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 04:41:50,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878097335] [2023-01-28 04:41:50,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878097335] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 04:41:50,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1994017204] [2023-01-28 04:41:50,143 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-01-28 04:41:50,143 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 04:41:50,143 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 04:41:50,154 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-28 04:41:50,155 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-01-28 04:41:50,233 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-01-28 04:41:50,233 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-28 04:41:50,234 INFO L263 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 12 conjunts are in the unsatisfiable core [2023-01-28 04:41:50,234 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 04:41:50,313 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-01-28 04:41:50,313 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-28 04:41:50,367 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-01-28 04:41:50,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1994017204] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-28 04:41:50,367 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-28 04:41:50,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 14 [2023-01-28 04:41:50,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42597178] [2023-01-28 04:41:50,368 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-28 04:41:50,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-01-28 04:41:50,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 04:41:50,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-01-28 04:41:50,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2023-01-28 04:41:50,370 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 267 [2023-01-28 04:41:50,371 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 278 places, 982 transitions, 15302 flow. Second operand has 15 states, 15 states have (on average 101.66666666666667) internal successors, (1525), 15 states have internal predecessors, (1525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 04:41:50,371 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 04:41:50,371 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 267 [2023-01-28 04:41:50,371 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 04:41:53,550 INFO L130 PetriNetUnfolder]: 6651/11107 cut-off events. [2023-01-28 04:41:53,550 INFO L131 PetriNetUnfolder]: For 172562/172622 co-relation queries the response was YES. [2023-01-28 04:41:53,615 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79680 conditions, 11107 events. 6651/11107 cut-off events. For 172562/172622 co-relation queries the response was YES. Maximal size of possible extension queue 687. Compared 79726 event pairs, 722 based on Foata normal form. 841/11934 useless extension candidates. Maximal degree in co-relation 79563. Up to 6589 conditions per place. [2023-01-28 04:41:53,658 INFO L137 encePairwiseOnDemand]: 260/267 looper letters, 843 selfloop transitions, 104 changer transitions 27/990 dead transitions. [2023-01-28 04:41:53,659 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 280 places, 990 transitions, 15933 flow [2023-01-28 04:41:53,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-01-28 04:41:53,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-01-28 04:41:53,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 963 transitions. [2023-01-28 04:41:53,673 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40074906367041196 [2023-01-28 04:41:53,673 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 963 transitions. [2023-01-28 04:41:53,673 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 963 transitions. [2023-01-28 04:41:53,680 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 04:41:53,680 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 963 transitions. [2023-01-28 04:41:53,681 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 107.0) internal successors, (963), 9 states have internal predecessors, (963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 04:41:53,683 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 267.0) internal successors, (2670), 10 states have internal predecessors, (2670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 04:41:53,683 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 267.0) internal successors, (2670), 10 states have internal predecessors, (2670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 04:41:53,683 INFO L175 Difference]: Start difference. First operand has 278 places, 982 transitions, 15302 flow. Second operand 9 states and 963 transitions. [2023-01-28 04:41:53,683 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 280 places, 990 transitions, 15933 flow [2023-01-28 04:41:54,714 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 272 places, 990 transitions, 15750 flow, removed 89 selfloop flow, removed 8 redundant places. [2023-01-28 04:41:54,744 INFO L231 Difference]: Finished difference. Result has 272 places, 716 transitions, 10987 flow [2023-01-28 04:41:54,744 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=10933, PETRI_DIFFERENCE_MINUEND_PLACES=264, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=733, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=103, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=630, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=10987, PETRI_PLACES=272, PETRI_TRANSITIONS=716} [2023-01-28 04:41:54,761 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 242 predicate places. [2023-01-28 04:41:54,761 INFO L495 AbstractCegarLoop]: Abstraction has has 272 places, 716 transitions, 10987 flow [2023-01-28 04:41:54,761 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 101.66666666666667) internal successors, (1525), 15 states have internal predecessors, (1525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 04:41:54,761 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 04:41:54,761 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 04:41:54,766 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-01-28 04:41:54,966 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-01-28 04:41:54,966 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-01-28 04:41:54,966 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 04:41:54,966 INFO L85 PathProgramCache]: Analyzing trace with hash 2030722030, now seen corresponding path program 9 times [2023-01-28 04:41:54,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 04:41:54,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354650362] [2023-01-28 04:41:54,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 04:41:54,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 04:41:54,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 04:41:55,042 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-01-28 04:41:55,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 04:41:55,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354650362] [2023-01-28 04:41:55,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [354650362] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 04:41:55,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1159133888] [2023-01-28 04:41:55,043 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-01-28 04:41:55,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 04:41:55,043 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 04:41:55,044 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-28 04:41:55,046 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-01-28 04:41:55,126 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-01-28 04:41:55,126 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-28 04:41:55,127 INFO L263 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 8 conjunts are in the unsatisfiable core [2023-01-28 04:41:55,128 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 04:41:55,171 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-01-28 04:41:55,171 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-28 04:41:55,207 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-01-28 04:41:55,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1159133888] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-28 04:41:55,207 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-28 04:41:55,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2023-01-28 04:41:55,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259532834] [2023-01-28 04:41:55,207 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-28 04:41:55,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-01-28 04:41:55,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 04:41:55,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-01-28 04:41:55,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2023-01-28 04:41:55,209 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 267 [2023-01-28 04:41:55,210 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 272 places, 716 transitions, 10987 flow. Second operand has 14 states, 14 states have (on average 107.35714285714286) internal successors, (1503), 14 states have internal predecessors, (1503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 04:41:55,210 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 04:41:55,210 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 267 [2023-01-28 04:41:55,210 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 04:41:56,992 INFO L130 PetriNetUnfolder]: 4406/7527 cut-off events. [2023-01-28 04:41:56,992 INFO L131 PetriNetUnfolder]: For 133467/134439 co-relation queries the response was YES. [2023-01-28 04:41:57,029 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55217 conditions, 7527 events. 4406/7527 cut-off events. For 133467/134439 co-relation queries the response was YES. Maximal size of possible extension queue 569. Compared 53496 event pairs, 1043 based on Foata normal form. 958/8250 useless extension candidates. Maximal degree in co-relation 55105. Up to 4307 conditions per place. [2023-01-28 04:41:57,052 INFO L137 encePairwiseOnDemand]: 261/267 looper letters, 485 selfloop transitions, 27 changer transitions 32/641 dead transitions. [2023-01-28 04:41:57,053 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 262 places, 641 transitions, 11079 flow [2023-01-28 04:41:57,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-01-28 04:41:57,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-01-28 04:41:57,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 909 transitions. [2023-01-28 04:41:57,054 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.425561797752809 [2023-01-28 04:41:57,054 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 909 transitions. [2023-01-28 04:41:57,054 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 909 transitions. [2023-01-28 04:41:57,055 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 04:41:57,055 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 909 transitions. [2023-01-28 04:41:57,057 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 113.625) internal successors, (909), 8 states have internal predecessors, (909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 04:41:57,059 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 267.0) internal successors, (2403), 9 states have internal predecessors, (2403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 04:41:57,059 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 267.0) internal successors, (2403), 9 states have internal predecessors, (2403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 04:41:57,059 INFO L175 Difference]: Start difference. First operand has 272 places, 716 transitions, 10987 flow. Second operand 8 states and 909 transitions. [2023-01-28 04:41:57,059 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 262 places, 641 transitions, 11079 flow [2023-01-28 04:41:57,663 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 243 places, 641 transitions, 10652 flow, removed 133 selfloop flow, removed 19 redundant places. [2023-01-28 04:41:57,672 INFO L231 Difference]: Finished difference. Result has 245 places, 543 transitions, 8477 flow [2023-01-28 04:41:57,672 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=8609, PETRI_DIFFERENCE_MINUEND_PLACES=236, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=566, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=539, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=8477, PETRI_PLACES=245, PETRI_TRANSITIONS=543} [2023-01-28 04:41:57,673 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 215 predicate places. [2023-01-28 04:41:57,673 INFO L495 AbstractCegarLoop]: Abstraction has has 245 places, 543 transitions, 8477 flow [2023-01-28 04:41:57,673 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 107.35714285714286) internal successors, (1503), 14 states have internal predecessors, (1503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 04:41:57,673 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 04:41:57,673 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 04:41:57,678 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-01-28 04:41:57,877 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-01-28 04:41:57,878 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-01-28 04:41:57,878 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 04:41:57,878 INFO L85 PathProgramCache]: Analyzing trace with hash -1080724745, now seen corresponding path program 10 times [2023-01-28 04:41:57,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 04:41:57,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778174118] [2023-01-28 04:41:57,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 04:41:57,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 04:41:57,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 04:41:57,962 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-01-28 04:41:57,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 04:41:57,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778174118] [2023-01-28 04:41:57,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778174118] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 04:41:57,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [242501258] [2023-01-28 04:41:57,963 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-01-28 04:41:57,963 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 04:41:57,963 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 04:41:57,964 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-28 04:41:57,965 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-01-28 04:41:58,032 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-01-28 04:41:58,032 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-28 04:41:58,033 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 11 conjunts are in the unsatisfiable core [2023-01-28 04:41:58,034 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 04:41:58,141 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-01-28 04:41:58,141 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-28 04:41:58,205 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-01-28 04:41:58,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [242501258] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-28 04:41:58,205 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-28 04:41:58,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8, 8] total 16 [2023-01-28 04:41:58,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945766815] [2023-01-28 04:41:58,206 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-28 04:41:58,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-01-28 04:41:58,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 04:41:58,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-01-28 04:41:58,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2023-01-28 04:41:58,207 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 267 [2023-01-28 04:41:58,208 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 245 places, 543 transitions, 8477 flow. Second operand has 16 states, 16 states have (on average 101.0) internal successors, (1616), 16 states have internal predecessors, (1616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 04:41:58,208 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 04:41:58,208 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 267 [2023-01-28 04:41:58,208 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 04:41:59,656 INFO L130 PetriNetUnfolder]: 3345/5757 cut-off events. [2023-01-28 04:41:59,656 INFO L131 PetriNetUnfolder]: For 89363/89744 co-relation queries the response was YES. [2023-01-28 04:41:59,679 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42147 conditions, 5757 events. 3345/5757 cut-off events. For 89363/89744 co-relation queries the response was YES. Maximal size of possible extension queue 414. Compared 39204 event pairs, 488 based on Foata normal form. 510/6199 useless extension candidates. Maximal degree in co-relation 42048. Up to 2104 conditions per place. [2023-01-28 04:41:59,691 INFO L137 encePairwiseOnDemand]: 259/267 looper letters, 261 selfloop transitions, 120 changer transitions 262/655 dead transitions. [2023-01-28 04:41:59,691 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 258 places, 655 transitions, 10966 flow [2023-01-28 04:41:59,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-01-28 04:41:59,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2023-01-28 04:41:59,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 1993 transitions. [2023-01-28 04:41:59,693 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3928641829292332 [2023-01-28 04:41:59,693 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 1993 transitions. [2023-01-28 04:41:59,693 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 1993 transitions. [2023-01-28 04:41:59,694 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 04:41:59,694 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 1993 transitions. [2023-01-28 04:41:59,695 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 104.89473684210526) internal successors, (1993), 19 states have internal predecessors, (1993), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 04:41:59,698 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 267.0) internal successors, (5340), 20 states have internal predecessors, (5340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 04:41:59,698 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 267.0) internal successors, (5340), 20 states have internal predecessors, (5340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 04:41:59,698 INFO L175 Difference]: Start difference. First operand has 245 places, 543 transitions, 8477 flow. Second operand 19 states and 1993 transitions. [2023-01-28 04:41:59,698 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 258 places, 655 transitions, 10966 flow [2023-01-28 04:42:00,025 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 244 places, 655 transitions, 10592 flow, removed 66 selfloop flow, removed 14 redundant places. [2023-01-28 04:42:00,032 INFO L231 Difference]: Finished difference. Result has 244 places, 333 transitions, 4458 flow [2023-01-28 04:42:00,032 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=7888, PETRI_DIFFERENCE_MINUEND_PLACES=226, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=518, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=105, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=413, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=4458, PETRI_PLACES=244, PETRI_TRANSITIONS=333} [2023-01-28 04:42:00,032 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 214 predicate places. [2023-01-28 04:42:00,032 INFO L495 AbstractCegarLoop]: Abstraction has has 244 places, 333 transitions, 4458 flow [2023-01-28 04:42:00,033 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 101.0) internal successors, (1616), 16 states have internal predecessors, (1616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 04:42:00,033 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 04:42:00,033 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 04:42:00,038 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2023-01-28 04:42:00,237 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-01-28 04:42:00,237 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-01-28 04:42:00,237 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 04:42:00,238 INFO L85 PathProgramCache]: Analyzing trace with hash -862209951, now seen corresponding path program 11 times [2023-01-28 04:42:00,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 04:42:00,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001139664] [2023-01-28 04:42:00,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 04:42:00,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 04:42:00,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 04:42:00,336 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-01-28 04:42:00,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 04:42:00,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001139664] [2023-01-28 04:42:00,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001139664] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 04:42:00,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1397145183] [2023-01-28 04:42:00,337 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-01-28 04:42:00,337 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 04:42:00,337 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 04:42:00,338 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-28 04:42:00,339 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-01-28 04:42:00,418 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-01-28 04:42:00,418 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-28 04:42:00,419 INFO L263 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 8 conjunts are in the unsatisfiable core [2023-01-28 04:42:00,419 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 04:42:00,495 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-01-28 04:42:00,495 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-28 04:42:00,574 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-01-28 04:42:00,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1397145183] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-28 04:42:00,574 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-28 04:42:00,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 19 [2023-01-28 04:42:00,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559648079] [2023-01-28 04:42:00,574 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-28 04:42:00,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-01-28 04:42:00,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 04:42:00,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-01-28 04:42:00,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=277, Unknown=0, NotChecked=0, Total=342 [2023-01-28 04:42:00,576 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 267 [2023-01-28 04:42:00,577 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 244 places, 333 transitions, 4458 flow. Second operand has 19 states, 19 states have (on average 97.52631578947368) internal successors, (1853), 19 states have internal predecessors, (1853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 04:42:00,577 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 04:42:00,577 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 267 [2023-01-28 04:42:00,577 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 04:42:02,735 INFO L130 PetriNetUnfolder]: 3075/4688 cut-off events. [2023-01-28 04:42:02,735 INFO L131 PetriNetUnfolder]: For 75281/75281 co-relation queries the response was YES. [2023-01-28 04:42:02,759 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38573 conditions, 4688 events. 3075/4688 cut-off events. For 75281/75281 co-relation queries the response was YES. Maximal size of possible extension queue 244. Compared 24206 event pairs, 160 based on Foata normal form. 28/4716 useless extension candidates. Maximal degree in co-relation 38496. Up to 1638 conditions per place. [2023-01-28 04:42:02,782 INFO L137 encePairwiseOnDemand]: 257/267 looper letters, 423 selfloop transitions, 383 changer transitions 0/806 dead transitions. [2023-01-28 04:42:02,782 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 230 places, 806 transitions, 12365 flow [2023-01-28 04:42:02,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2023-01-28 04:42:02,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2023-01-28 04:42:02,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 4674 transitions. [2023-01-28 04:42:02,789 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3805569125549585 [2023-01-28 04:42:02,789 INFO L72 ComplementDD]: Start complementDD. Operand 46 states and 4674 transitions. [2023-01-28 04:42:02,789 INFO L73 IsDeterministic]: Start isDeterministic. Operand 46 states and 4674 transitions. [2023-01-28 04:42:02,791 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 04:42:02,791 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 46 states and 4674 transitions. [2023-01-28 04:42:02,797 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 47 states, 46 states have (on average 101.6086956521739) internal successors, (4674), 46 states have internal predecessors, (4674), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 04:42:02,805 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 47 states, 47 states have (on average 267.0) internal successors, (12549), 47 states have internal predecessors, (12549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 04:42:02,806 INFO L81 ComplementDD]: Finished complementDD. Result has 47 states, 47 states have (on average 267.0) internal successors, (12549), 47 states have internal predecessors, (12549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 04:42:02,806 INFO L175 Difference]: Start difference. First operand has 244 places, 333 transitions, 4458 flow. Second operand 46 states and 4674 transitions. [2023-01-28 04:42:02,806 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 230 places, 806 transitions, 12365 flow [2023-01-28 04:42:03,071 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 207 places, 806 transitions, 10765 flow, removed 579 selfloop flow, removed 23 redundant places. [2023-01-28 04:42:03,079 INFO L231 Difference]: Finished difference. Result has 225 places, 547 transitions, 8129 flow [2023-01-28 04:42:03,079 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=3828, PETRI_DIFFERENCE_MINUEND_PLACES=162, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=331, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=191, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=46, PETRI_FLOW=8129, PETRI_PLACES=225, PETRI_TRANSITIONS=547} [2023-01-28 04:42:03,080 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 195 predicate places. [2023-01-28 04:42:03,080 INFO L495 AbstractCegarLoop]: Abstraction has has 225 places, 547 transitions, 8129 flow [2023-01-28 04:42:03,080 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 97.52631578947368) internal successors, (1853), 19 states have internal predecessors, (1853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 04:42:03,080 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 04:42:03,080 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 04:42:03,084 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-01-28 04:42:03,284 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 04:42:03,285 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-01-28 04:42:03,285 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 04:42:03,285 INFO L85 PathProgramCache]: Analyzing trace with hash 41038503, now seen corresponding path program 12 times [2023-01-28 04:42:03,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 04:42:03,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440932898] [2023-01-28 04:42:03,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 04:42:03,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 04:42:03,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 04:42:03,398 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-01-28 04:42:03,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 04:42:03,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440932898] [2023-01-28 04:42:03,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440932898] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 04:42:03,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1795272457] [2023-01-28 04:42:03,398 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-01-28 04:42:03,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 04:42:03,398 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 04:42:03,410 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-28 04:42:03,411 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-01-28 04:42:03,504 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2023-01-28 04:42:03,504 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-28 04:42:03,505 INFO L263 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 10 conjunts are in the unsatisfiable core [2023-01-28 04:42:03,506 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 04:42:03,605 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-01-28 04:42:03,605 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-28 04:42:03,688 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-01-28 04:42:03,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1795272457] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-28 04:42:03,688 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-28 04:42:03,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8] total 18 [2023-01-28 04:42:03,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010897629] [2023-01-28 04:42:03,688 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-28 04:42:03,689 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-01-28 04:42:03,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 04:42:03,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-01-28 04:42:03,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=267, Unknown=0, NotChecked=0, Total=342 [2023-01-28 04:42:03,690 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 267 [2023-01-28 04:42:03,691 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 225 places, 547 transitions, 8129 flow. Second operand has 19 states, 19 states have (on average 100.15789473684211) internal successors, (1903), 19 states have internal predecessors, (1903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 04:42:03,691 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 04:42:03,691 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 267 [2023-01-28 04:42:03,691 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 04:42:04,651 INFO L130 PetriNetUnfolder]: 3028/4625 cut-off events. [2023-01-28 04:42:04,652 INFO L131 PetriNetUnfolder]: For 94559/94581 co-relation queries the response was YES. [2023-01-28 04:42:04,672 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40144 conditions, 4625 events. 3028/4625 cut-off events. For 94559/94581 co-relation queries the response was YES. Maximal size of possible extension queue 252. Compared 24151 event pairs, 451 based on Foata normal form. 70/4685 useless extension candidates. Maximal degree in co-relation 40065. Up to 2265 conditions per place. [2023-01-28 04:42:04,689 INFO L137 encePairwiseOnDemand]: 259/267 looper letters, 499 selfloop transitions, 155 changer transitions 0/681 dead transitions. [2023-01-28 04:42:04,689 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 225 places, 681 transitions, 11461 flow [2023-01-28 04:42:04,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-01-28 04:42:04,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-01-28 04:42:04,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 950 transitions. [2023-01-28 04:42:04,691 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3953391593841032 [2023-01-28 04:42:04,691 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 950 transitions. [2023-01-28 04:42:04,691 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 950 transitions. [2023-01-28 04:42:04,691 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 04:42:04,691 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 950 transitions. [2023-01-28 04:42:04,693 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 105.55555555555556) internal successors, (950), 9 states have internal predecessors, (950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 04:42:04,695 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 267.0) internal successors, (2670), 10 states have internal predecessors, (2670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 04:42:04,695 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 267.0) internal successors, (2670), 10 states have internal predecessors, (2670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 04:42:04,695 INFO L175 Difference]: Start difference. First operand has 225 places, 547 transitions, 8129 flow. Second operand 9 states and 950 transitions. [2023-01-28 04:42:04,695 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 225 places, 681 transitions, 11461 flow [2023-01-28 04:42:04,990 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 218 places, 681 transitions, 10339 flow, removed 552 selfloop flow, removed 7 redundant places. [2023-01-28 04:42:04,998 INFO L231 Difference]: Finished difference. Result has 222 places, 536 transitions, 7825 flow [2023-01-28 04:42:04,999 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=6933, PETRI_DIFFERENCE_MINUEND_PLACES=210, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=518, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=137, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=363, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=7825, PETRI_PLACES=222, PETRI_TRANSITIONS=536} [2023-01-28 04:42:04,999 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 192 predicate places. [2023-01-28 04:42:04,999 INFO L495 AbstractCegarLoop]: Abstraction has has 222 places, 536 transitions, 7825 flow [2023-01-28 04:42:04,999 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 100.15789473684211) internal successors, (1903), 19 states have internal predecessors, (1903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 04:42:04,999 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 04:42:04,999 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 04:42:05,012 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-01-28 04:42:05,204 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-01-28 04:42:05,205 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-01-28 04:42:05,205 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 04:42:05,205 INFO L85 PathProgramCache]: Analyzing trace with hash 594494739, now seen corresponding path program 13 times [2023-01-28 04:42:05,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 04:42:05,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932353530] [2023-01-28 04:42:05,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 04:42:05,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 04:42:05,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 04:42:05,306 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-01-28 04:42:05,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 04:42:05,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932353530] [2023-01-28 04:42:05,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932353530] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 04:42:05,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1974509194] [2023-01-28 04:42:05,307 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-01-28 04:42:05,307 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 04:42:05,307 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 04:42:05,323 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-28 04:42:05,323 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-01-28 04:42:05,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 04:42:05,403 INFO L263 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 10 conjunts are in the unsatisfiable core [2023-01-28 04:42:05,404 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 04:42:05,493 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-01-28 04:42:05,493 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-28 04:42:05,576 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-01-28 04:42:05,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1974509194] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-28 04:42:05,576 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-28 04:42:05,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8] total 20 [2023-01-28 04:42:05,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628169778] [2023-01-28 04:42:05,577 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-28 04:42:05,577 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-01-28 04:42:05,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 04:42:05,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-01-28 04:42:05,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=331, Unknown=0, NotChecked=0, Total=420 [2023-01-28 04:42:05,578 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 267 [2023-01-28 04:42:05,579 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 222 places, 536 transitions, 7825 flow. Second operand has 21 states, 21 states have (on average 99.85714285714286) internal successors, (2097), 21 states have internal predecessors, (2097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 04:42:05,579 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 04:42:05,579 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 267 [2023-01-28 04:42:05,579 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 04:42:06,724 INFO L130 PetriNetUnfolder]: 3159/4854 cut-off events. [2023-01-28 04:42:06,724 INFO L131 PetriNetUnfolder]: For 101629/101667 co-relation queries the response was YES. [2023-01-28 04:42:06,748 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41653 conditions, 4854 events. 3159/4854 cut-off events. For 101629/101667 co-relation queries the response was YES. Maximal size of possible extension queue 274. Compared 25958 event pairs, 442 based on Foata normal form. 46/4890 useless extension candidates. Maximal degree in co-relation 41574. Up to 2278 conditions per place. [2023-01-28 04:42:06,768 INFO L137 encePairwiseOnDemand]: 259/267 looper letters, 487 selfloop transitions, 235 changer transitions 0/749 dead transitions. [2023-01-28 04:42:06,769 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 235 places, 749 transitions, 11854 flow [2023-01-28 04:42:06,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-01-28 04:42:06,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-01-28 04:42:06,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1487 transitions. [2023-01-28 04:42:06,770 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39780631353665064 [2023-01-28 04:42:06,770 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1487 transitions. [2023-01-28 04:42:06,770 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1487 transitions. [2023-01-28 04:42:06,771 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 04:42:06,771 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1487 transitions. [2023-01-28 04:42:06,772 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 106.21428571428571) internal successors, (1487), 14 states have internal predecessors, (1487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 04:42:06,774 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 267.0) internal successors, (4005), 15 states have internal predecessors, (4005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 04:42:06,774 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 267.0) internal successors, (4005), 15 states have internal predecessors, (4005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 04:42:06,774 INFO L175 Difference]: Start difference. First operand has 222 places, 536 transitions, 7825 flow. Second operand 14 states and 1487 transitions. [2023-01-28 04:42:06,774 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 235 places, 749 transitions, 11854 flow [2023-01-28 04:42:07,149 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 229 places, 749 transitions, 11550 flow, removed 79 selfloop flow, removed 6 redundant places. [2023-01-28 04:42:07,158 INFO L231 Difference]: Finished difference. Result has 234 places, 603 transitions, 9455 flow [2023-01-28 04:42:07,159 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=7590, PETRI_DIFFERENCE_MINUEND_PLACES=216, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=536, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=183, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=333, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=9455, PETRI_PLACES=234, PETRI_TRANSITIONS=603} [2023-01-28 04:42:07,159 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 204 predicate places. [2023-01-28 04:42:07,159 INFO L495 AbstractCegarLoop]: Abstraction has has 234 places, 603 transitions, 9455 flow [2023-01-28 04:42:07,159 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 99.85714285714286) internal successors, (2097), 21 states have internal predecessors, (2097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 04:42:07,160 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 04:42:07,160 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 04:42:07,167 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-01-28 04:42:07,364 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-01-28 04:42:07,365 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-01-28 04:42:07,365 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 04:42:07,365 INFO L85 PathProgramCache]: Analyzing trace with hash -1361094559, now seen corresponding path program 14 times [2023-01-28 04:42:07,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 04:42:07,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393991867] [2023-01-28 04:42:07,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 04:42:07,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 04:42:07,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 04:42:07,464 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-01-28 04:42:07,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 04:42:07,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393991867] [2023-01-28 04:42:07,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393991867] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 04:42:07,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [494423969] [2023-01-28 04:42:07,465 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-01-28 04:42:07,465 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 04:42:07,465 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 04:42:07,473 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-28 04:42:07,473 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-01-28 04:42:07,572 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-01-28 04:42:07,572 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-28 04:42:07,573 INFO L263 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 10 conjunts are in the unsatisfiable core [2023-01-28 04:42:07,574 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 04:42:07,662 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-01-28 04:42:07,662 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-28 04:42:07,730 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-01-28 04:42:07,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [494423969] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-28 04:42:07,731 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-28 04:42:07,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8] total 19 [2023-01-28 04:42:07,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502251463] [2023-01-28 04:42:07,731 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-28 04:42:07,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-01-28 04:42:07,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 04:42:07,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-01-28 04:42:07,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=298, Unknown=0, NotChecked=0, Total=380 [2023-01-28 04:42:07,741 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 267 [2023-01-28 04:42:07,742 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 234 places, 603 transitions, 9455 flow. Second operand has 20 states, 20 states have (on average 100.0) internal successors, (2000), 20 states have internal predecessors, (2000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 04:42:07,742 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 04:42:07,742 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 267 [2023-01-28 04:42:07,742 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 04:42:08,756 INFO L130 PetriNetUnfolder]: 3121/4777 cut-off events. [2023-01-28 04:42:08,756 INFO L131 PetriNetUnfolder]: For 88310/88351 co-relation queries the response was YES. [2023-01-28 04:42:08,780 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41107 conditions, 4777 events. 3121/4777 cut-off events. For 88310/88351 co-relation queries the response was YES. Maximal size of possible extension queue 269. Compared 25257 event pairs, 497 based on Foata normal form. 50/4814 useless extension candidates. Maximal degree in co-relation 41025. Up to 2397 conditions per place. [2023-01-28 04:42:08,799 INFO L137 encePairwiseOnDemand]: 259/267 looper letters, 484 selfloop transitions, 168 changer transitions 0/679 dead transitions. [2023-01-28 04:42:08,799 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 239 places, 679 transitions, 11554 flow [2023-01-28 04:42:08,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-01-28 04:42:08,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-01-28 04:42:08,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 950 transitions. [2023-01-28 04:42:08,800 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3953391593841032 [2023-01-28 04:42:08,800 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 950 transitions. [2023-01-28 04:42:08,800 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 950 transitions. [2023-01-28 04:42:08,801 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 04:42:08,801 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 950 transitions. [2023-01-28 04:42:08,802 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 105.55555555555556) internal successors, (950), 9 states have internal predecessors, (950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 04:42:08,803 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 267.0) internal successors, (2670), 10 states have internal predecessors, (2670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 04:42:08,803 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 267.0) internal successors, (2670), 10 states have internal predecessors, (2670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 04:42:08,803 INFO L175 Difference]: Start difference. First operand has 234 places, 603 transitions, 9455 flow. Second operand 9 states and 950 transitions. [2023-01-28 04:42:08,803 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 239 places, 679 transitions, 11554 flow [2023-01-28 04:42:09,189 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 233 places, 679 transitions, 11142 flow, removed 133 selfloop flow, removed 6 redundant places. [2023-01-28 04:42:09,197 INFO L231 Difference]: Finished difference. Result has 234 places, 598 transitions, 9335 flow [2023-01-28 04:42:09,197 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=8840, PETRI_DIFFERENCE_MINUEND_PLACES=225, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=591, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=161, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=423, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=9335, PETRI_PLACES=234, PETRI_TRANSITIONS=598} [2023-01-28 04:42:09,198 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 204 predicate places. [2023-01-28 04:42:09,198 INFO L495 AbstractCegarLoop]: Abstraction has has 234 places, 598 transitions, 9335 flow [2023-01-28 04:42:09,198 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 100.0) internal successors, (2000), 20 states have internal predecessors, (2000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 04:42:09,198 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 04:42:09,198 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 04:42:09,203 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2023-01-28 04:42:09,403 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-01-28 04:42:09,403 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-01-28 04:42:09,403 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 04:42:09,403 INFO L85 PathProgramCache]: Analyzing trace with hash 649905999, now seen corresponding path program 15 times [2023-01-28 04:42:09,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 04:42:09,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025935240] [2023-01-28 04:42:09,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 04:42:09,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 04:42:09,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 04:42:09,521 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-01-28 04:42:09,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 04:42:09,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025935240] [2023-01-28 04:42:09,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025935240] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 04:42:09,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1619079488] [2023-01-28 04:42:09,521 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-01-28 04:42:09,521 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 04:42:09,521 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 04:42:09,523 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-28 04:42:09,524 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-01-28 04:42:09,614 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-01-28 04:42:09,614 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-28 04:42:09,615 INFO L263 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 10 conjunts are in the unsatisfiable core [2023-01-28 04:42:09,616 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 04:42:09,697 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-01-28 04:42:09,697 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-28 04:42:09,807 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-01-28 04:42:09,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1619079488] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-28 04:42:09,808 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-28 04:42:09,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8] total 21 [2023-01-28 04:42:09,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379210053] [2023-01-28 04:42:09,808 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-28 04:42:09,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-01-28 04:42:09,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 04:42:09,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-01-28 04:42:09,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=368, Unknown=0, NotChecked=0, Total=462 [2023-01-28 04:42:09,810 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 267 [2023-01-28 04:42:09,812 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 234 places, 598 transitions, 9335 flow. Second operand has 22 states, 22 states have (on average 99.81818181818181) internal successors, (2196), 22 states have internal predecessors, (2196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 04:42:09,812 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 04:42:09,812 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 267 [2023-01-28 04:42:09,812 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 04:42:10,922 INFO L130 PetriNetUnfolder]: 3092/4717 cut-off events. [2023-01-28 04:42:10,922 INFO L131 PetriNetUnfolder]: For 79921/79959 co-relation queries the response was YES. [2023-01-28 04:42:10,957 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40217 conditions, 4717 events. 3092/4717 cut-off events. For 79921/79959 co-relation queries the response was YES. Maximal size of possible extension queue 266. Compared 24762 event pairs, 467 based on Foata normal form. 42/4746 useless extension candidates. Maximal degree in co-relation 40136. Up to 2279 conditions per place. [2023-01-28 04:42:10,979 INFO L137 encePairwiseOnDemand]: 259/267 looper letters, 435 selfloop transitions, 226 changer transitions 0/688 dead transitions. [2023-01-28 04:42:10,979 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 242 places, 688 transitions, 11590 flow [2023-01-28 04:42:10,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-01-28 04:42:10,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-01-28 04:42:10,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1059 transitions. [2023-01-28 04:42:10,981 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39662921348314606 [2023-01-28 04:42:10,981 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1059 transitions. [2023-01-28 04:42:10,981 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1059 transitions. [2023-01-28 04:42:10,981 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 04:42:10,981 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1059 transitions. [2023-01-28 04:42:10,982 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 105.9) internal successors, (1059), 10 states have internal predecessors, (1059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 04:42:10,984 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 267.0) internal successors, (2937), 11 states have internal predecessors, (2937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 04:42:10,984 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 267.0) internal successors, (2937), 11 states have internal predecessors, (2937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 04:42:10,984 INFO L175 Difference]: Start difference. First operand has 234 places, 598 transitions, 9335 flow. Second operand 10 states and 1059 transitions. [2023-01-28 04:42:10,984 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 242 places, 688 transitions, 11590 flow [2023-01-28 04:42:11,320 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 236 places, 688 transitions, 11400 flow, removed 6 selfloop flow, removed 6 redundant places. [2023-01-28 04:42:11,329 INFO L231 Difference]: Finished difference. Result has 236 places, 597 transitions, 9583 flow [2023-01-28 04:42:11,329 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=9131, PETRI_DIFFERENCE_MINUEND_PLACES=227, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=597, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=226, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=371, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=9583, PETRI_PLACES=236, PETRI_TRANSITIONS=597} [2023-01-28 04:42:11,330 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 206 predicate places. [2023-01-28 04:42:11,330 INFO L495 AbstractCegarLoop]: Abstraction has has 236 places, 597 transitions, 9583 flow [2023-01-28 04:42:11,330 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 99.81818181818181) internal successors, (2196), 22 states have internal predecessors, (2196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 04:42:11,330 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 04:42:11,330 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 04:42:11,351 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2023-01-28 04:42:11,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 04:42:11,535 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-01-28 04:42:11,535 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 04:42:11,535 INFO L85 PathProgramCache]: Analyzing trace with hash 1481117643, now seen corresponding path program 16 times [2023-01-28 04:42:11,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 04:42:11,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883312361] [2023-01-28 04:42:11,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 04:42:11,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 04:42:11,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 04:42:11,653 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-01-28 04:42:11,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 04:42:11,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883312361] [2023-01-28 04:42:11,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883312361] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 04:42:11,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2021335373] [2023-01-28 04:42:11,654 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-01-28 04:42:11,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 04:42:11,654 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 04:42:11,655 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-28 04:42:11,659 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-01-28 04:42:11,750 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-01-28 04:42:11,750 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-28 04:42:11,751 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 8 conjunts are in the unsatisfiable core [2023-01-28 04:42:11,752 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 04:42:11,858 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-01-28 04:42:11,858 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-28 04:42:11,949 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-01-28 04:42:11,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2021335373] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-28 04:42:11,949 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-28 04:42:11,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 20 [2023-01-28 04:42:11,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928843509] [2023-01-28 04:42:11,951 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-28 04:42:11,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-01-28 04:42:11,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 04:42:11,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-01-28 04:42:11,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=309, Unknown=0, NotChecked=0, Total=380 [2023-01-28 04:42:11,957 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 267 [2023-01-28 04:42:11,958 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 236 places, 597 transitions, 9583 flow. Second operand has 20 states, 20 states have (on average 97.35) internal successors, (1947), 20 states have internal predecessors, (1947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 04:42:11,958 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 04:42:11,958 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 267 [2023-01-28 04:42:11,958 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 04:42:13,880 INFO L130 PetriNetUnfolder]: 3115/4754 cut-off events. [2023-01-28 04:42:13,880 INFO L131 PetriNetUnfolder]: For 84647/84647 co-relation queries the response was YES. [2023-01-28 04:42:13,900 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40989 conditions, 4754 events. 3115/4754 cut-off events. For 84647/84647 co-relation queries the response was YES. Maximal size of possible extension queue 263. Compared 24750 event pairs, 180 based on Foata normal form. 26/4780 useless extension candidates. Maximal degree in co-relation 40908. Up to 1696 conditions per place. [2023-01-28 04:42:13,917 INFO L137 encePairwiseOnDemand]: 257/267 looper letters, 407 selfloop transitions, 416 changer transitions 0/823 dead transitions. [2023-01-28 04:42:13,917 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 272 places, 823 transitions, 13916 flow [2023-01-28 04:42:13,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2023-01-28 04:42:13,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2023-01-28 04:42:13,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 3784 transitions. [2023-01-28 04:42:13,929 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3830347201133718 [2023-01-28 04:42:13,929 INFO L72 ComplementDD]: Start complementDD. Operand 37 states and 3784 transitions. [2023-01-28 04:42:13,929 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 3784 transitions. [2023-01-28 04:42:13,934 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 04:42:13,934 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 37 states and 3784 transitions. [2023-01-28 04:42:13,937 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 38 states, 37 states have (on average 102.27027027027027) internal successors, (3784), 37 states have internal predecessors, (3784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 04:42:13,941 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 38 states, 38 states have (on average 267.0) internal successors, (10146), 38 states have internal predecessors, (10146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 04:42:13,942 INFO L81 ComplementDD]: Finished complementDD. Result has 38 states, 38 states have (on average 267.0) internal successors, (10146), 38 states have internal predecessors, (10146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 04:42:13,942 INFO L175 Difference]: Start difference. First operand has 236 places, 597 transitions, 9583 flow. Second operand 37 states and 3784 transitions. [2023-01-28 04:42:13,942 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 272 places, 823 transitions, 13916 flow [2023-01-28 04:42:14,242 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 263 places, 823 transitions, 13428 flow, removed 0 selfloop flow, removed 9 redundant places. [2023-01-28 04:42:14,252 INFO L231 Difference]: Finished difference. Result has 263 places, 604 transitions, 10076 flow [2023-01-28 04:42:14,252 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=9072, PETRI_DIFFERENCE_MINUEND_PLACES=227, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=593, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=405, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=188, PETRI_DIFFERENCE_SUBTRAHEND_STATES=37, PETRI_FLOW=10076, PETRI_PLACES=263, PETRI_TRANSITIONS=604} [2023-01-28 04:42:14,252 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 233 predicate places. [2023-01-28 04:42:14,252 INFO L495 AbstractCegarLoop]: Abstraction has has 263 places, 604 transitions, 10076 flow [2023-01-28 04:42:14,253 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 97.35) internal successors, (1947), 20 states have internal predecessors, (1947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 04:42:14,253 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 04:42:14,253 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 04:42:14,258 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2023-01-28 04:42:14,457 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 04:42:14,458 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-01-28 04:42:14,458 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 04:42:14,458 INFO L85 PathProgramCache]: Analyzing trace with hash -1869960955, now seen corresponding path program 17 times [2023-01-28 04:42:14,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 04:42:14,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301484707] [2023-01-28 04:42:14,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 04:42:14,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 04:42:14,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 04:42:14,554 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-01-28 04:42:14,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 04:42:14,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301484707] [2023-01-28 04:42:14,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301484707] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 04:42:14,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [948995241] [2023-01-28 04:42:14,555 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-01-28 04:42:14,555 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 04:42:14,555 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 04:42:14,556 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-28 04:42:14,557 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-01-28 04:42:14,649 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-01-28 04:42:14,649 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-28 04:42:14,650 INFO L263 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 8 conjunts are in the unsatisfiable core [2023-01-28 04:42:14,650 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 04:42:14,712 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-01-28 04:42:14,712 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-28 04:42:14,765 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-01-28 04:42:14,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [948995241] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-28 04:42:14,765 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-28 04:42:14,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2023-01-28 04:42:14,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681924529] [2023-01-28 04:42:14,765 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-28 04:42:14,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-01-28 04:42:14,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 04:42:14,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-01-28 04:42:14,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2023-01-28 04:42:14,767 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 267 [2023-01-28 04:42:14,767 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 263 places, 604 transitions, 10076 flow. Second operand has 18 states, 18 states have (on average 97.55555555555556) internal successors, (1756), 18 states have internal predecessors, (1756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 04:42:14,767 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 04:42:14,767 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 267 [2023-01-28 04:42:14,768 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 04:42:15,980 INFO L130 PetriNetUnfolder]: 3081/4688 cut-off events. [2023-01-28 04:42:15,981 INFO L131 PetriNetUnfolder]: For 85460/85460 co-relation queries the response was YES. [2023-01-28 04:42:16,003 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41389 conditions, 4688 events. 3081/4688 cut-off events. For 85460/85460 co-relation queries the response was YES. Maximal size of possible extension queue 258. Compared 24282 event pairs, 315 based on Foata normal form. 26/4714 useless extension candidates. Maximal degree in co-relation 41308. Up to 2764 conditions per place. [2023-01-28 04:42:16,024 INFO L137 encePairwiseOnDemand]: 257/267 looper letters, 438 selfloop transitions, 274 changer transitions 0/712 dead transitions. [2023-01-28 04:42:16,024 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 281 places, 712 transitions, 12831 flow [2023-01-28 04:42:16,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-01-28 04:42:16,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2023-01-28 04:42:16,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 1926 transitions. [2023-01-28 04:42:16,026 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.37965700768775873 [2023-01-28 04:42:16,026 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 1926 transitions. [2023-01-28 04:42:16,026 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 1926 transitions. [2023-01-28 04:42:16,027 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 04:42:16,027 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 1926 transitions. [2023-01-28 04:42:16,028 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 101.36842105263158) internal successors, (1926), 19 states have internal predecessors, (1926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 04:42:16,030 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 267.0) internal successors, (5340), 20 states have internal predecessors, (5340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 04:42:16,031 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 267.0) internal successors, (5340), 20 states have internal predecessors, (5340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 04:42:16,031 INFO L175 Difference]: Start difference. First operand has 263 places, 604 transitions, 10076 flow. Second operand 19 states and 1926 transitions. [2023-01-28 04:42:16,031 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 281 places, 712 transitions, 12831 flow [2023-01-28 04:42:16,402 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 253 places, 712 transitions, 12072 flow, removed 27 selfloop flow, removed 28 redundant places. [2023-01-28 04:42:16,411 INFO L231 Difference]: Finished difference. Result has 256 places, 607 transitions, 9989 flow [2023-01-28 04:42:16,412 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=9298, PETRI_DIFFERENCE_MINUEND_PLACES=235, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=597, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=264, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=326, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=9989, PETRI_PLACES=256, PETRI_TRANSITIONS=607} [2023-01-28 04:42:16,412 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 226 predicate places. [2023-01-28 04:42:16,412 INFO L495 AbstractCegarLoop]: Abstraction has has 256 places, 607 transitions, 9989 flow [2023-01-28 04:42:16,412 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 97.55555555555556) internal successors, (1756), 18 states have internal predecessors, (1756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 04:42:16,412 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 04:42:16,412 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 04:42:16,417 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2023-01-28 04:42:16,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2023-01-28 04:42:16,617 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-01-28 04:42:16,617 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 04:42:16,618 INFO L85 PathProgramCache]: Analyzing trace with hash 166044145, now seen corresponding path program 18 times [2023-01-28 04:42:16,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 04:42:16,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59350818] [2023-01-28 04:42:16,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 04:42:16,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 04:42:16,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 04:42:16,722 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-01-28 04:42:16,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 04:42:16,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59350818] [2023-01-28 04:42:16,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59350818] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 04:42:16,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1726645178] [2023-01-28 04:42:16,723 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-01-28 04:42:16,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 04:42:16,723 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 04:42:16,724 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-28 04:42:16,737 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-01-28 04:42:16,834 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2023-01-28 04:42:16,834 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-28 04:42:16,835 INFO L263 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 10 conjunts are in the unsatisfiable core [2023-01-28 04:42:16,836 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 04:42:16,924 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-01-28 04:42:16,924 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-28 04:42:17,004 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-01-28 04:42:17,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1726645178] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-28 04:42:17,004 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-28 04:42:17,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8] total 19 [2023-01-28 04:42:17,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483749305] [2023-01-28 04:42:17,005 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-28 04:42:17,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-01-28 04:42:17,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 04:42:17,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-01-28 04:42:17,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=298, Unknown=0, NotChecked=0, Total=380 [2023-01-28 04:42:17,006 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 267 [2023-01-28 04:42:17,007 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 256 places, 607 transitions, 9989 flow. Second operand has 20 states, 20 states have (on average 100.1) internal successors, (2002), 20 states have internal predecessors, (2002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 04:42:17,007 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 04:42:17,007 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 267 [2023-01-28 04:42:17,007 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 04:42:18,115 INFO L130 PetriNetUnfolder]: 3000/4557 cut-off events. [2023-01-28 04:42:18,115 INFO L131 PetriNetUnfolder]: For 78722/78771 co-relation queries the response was YES. [2023-01-28 04:42:18,146 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39100 conditions, 4557 events. 3000/4557 cut-off events. For 78722/78771 co-relation queries the response was YES. Maximal size of possible extension queue 256. Compared 23584 event pairs, 402 based on Foata normal form. 55/4605 useless extension candidates. Maximal degree in co-relation 39016. Up to 1849 conditions per place. [2023-01-28 04:42:18,170 INFO L137 encePairwiseOnDemand]: 259/267 looper letters, 349 selfloop transitions, 285 changer transitions 0/662 dead transitions. [2023-01-28 04:42:18,170 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 261 places, 662 transitions, 11787 flow [2023-01-28 04:42:18,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-01-28 04:42:18,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-01-28 04:42:18,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 949 transitions. [2023-01-28 04:42:18,172 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.394923012900541 [2023-01-28 04:42:18,172 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 949 transitions. [2023-01-28 04:42:18,172 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 949 transitions. [2023-01-28 04:42:18,172 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 04:42:18,172 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 949 transitions. [2023-01-28 04:42:18,173 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 105.44444444444444) internal successors, (949), 9 states have internal predecessors, (949), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 04:42:18,174 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 267.0) internal successors, (2670), 10 states have internal predecessors, (2670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 04:42:18,174 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 267.0) internal successors, (2670), 10 states have internal predecessors, (2670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 04:42:18,174 INFO L175 Difference]: Start difference. First operand has 256 places, 607 transitions, 9989 flow. Second operand 9 states and 949 transitions. [2023-01-28 04:42:18,174 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 261 places, 662 transitions, 11787 flow [2023-01-28 04:42:18,572 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 245 places, 662 transitions, 11340 flow, removed 0 selfloop flow, removed 16 redundant places. [2023-01-28 04:42:18,584 INFO L231 Difference]: Finished difference. Result has 245 places, 599 transitions, 10005 flow [2023-01-28 04:42:18,585 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=9435, PETRI_DIFFERENCE_MINUEND_PLACES=237, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=599, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=285, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=314, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=10005, PETRI_PLACES=245, PETRI_TRANSITIONS=599} [2023-01-28 04:42:18,585 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 215 predicate places. [2023-01-28 04:42:18,585 INFO L495 AbstractCegarLoop]: Abstraction has has 245 places, 599 transitions, 10005 flow [2023-01-28 04:42:18,585 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 100.1) internal successors, (2002), 20 states have internal predecessors, (2002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 04:42:18,585 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 04:42:18,586 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 04:42:18,595 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2023-01-28 04:42:18,792 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2023-01-28 04:42:18,792 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-01-28 04:42:18,793 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 04:42:18,793 INFO L85 PathProgramCache]: Analyzing trace with hash -567491001, now seen corresponding path program 3 times [2023-01-28 04:42:18,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 04:42:18,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222257242] [2023-01-28 04:42:18,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 04:42:18,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 04:42:18,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 04:42:20,879 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 04:42:20,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 04:42:20,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222257242] [2023-01-28 04:42:20,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222257242] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 04:42:20,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [132996808] [2023-01-28 04:42:20,879 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-01-28 04:42:20,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 04:42:20,880 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 04:42:20,881 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-28 04:42:20,882 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-01-28 04:42:20,993 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-01-28 04:42:20,993 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-28 04:42:20,995 INFO L263 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 59 conjunts are in the unsatisfiable core [2023-01-28 04:42:20,997 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 04:42:21,138 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 [2023-01-28 04:42:21,233 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 [2023-01-28 04:42:21,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 04:42:21,642 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 86 treesize of output 70 [2023-01-28 04:42:21,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-28 04:42:21,830 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 86 treesize of output 70 [2023-01-28 04:42:22,930 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-01-28 04:42:22,930 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 143 treesize of output 89 [2023-01-28 04:42:23,529 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 04:42:23,529 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-28 04:42:25,469 WARN L839 $PredicateComparison]: unable to prove that (let ((.cse5 (+ c_~min1~0 1))) (let ((.cse17 (<= c_~min1~0 c_~min2~0)) (.cse3 (<= c_~min1~0 c_~min3~0)) (.cse18 (< c_~min2~0 .cse5)) (.cse2 (forall ((v_thread3Thread1of1ForFork0_~i~2_109 Int) (v_ArrVal_1041 (Array Int Int))) (let ((.cse27 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_1041) c_~A~0.base))) (let ((.cse26 (select .cse27 c_~A~0.offset))) (or (< c_~M~0 v_thread3Thread1of1ForFork0_~i~2_109) (<= .cse26 c_~min3~0) (< (+ v_thread3Thread1of1ForFork0_~i~2_109 1) c_~N~0) (<= c_~min2~0 .cse26) (< (select .cse27 (+ c_~A~0.offset (* v_thread3Thread1of1ForFork0_~i~2_109 4))) c_~min3~0)))))) (.cse11 (<= c_~min3~0 c_~min1~0))) (and (forall ((v_ArrVal_1041 (Array Int Int))) (let ((.cse1 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_1041) c_~A~0.base))) (or (forall ((v_thread3Thread1of1ForFork0_~i~2_109 Int)) (let ((.cse0 (select .cse1 (+ c_~A~0.offset (* v_thread3Thread1of1ForFork0_~i~2_109 4))))) (or (< c_~M~0 v_thread3Thread1of1ForFork0_~i~2_109) (<= c_~min3~0 .cse0) (<= c_~min2~0 .cse0) (<= c_~min1~0 .cse0) (< (+ v_thread3Thread1of1ForFork0_~i~2_109 1) c_~N~0)))) (< (select .cse1 c_~A~0.offset) c_~min2~0)))) (or .cse2 .cse3) (forall ((v_ArrVal_1041 (Array Int Int))) (let ((.cse7 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_1041) c_~A~0.base))) (let ((.cse4 (select .cse7 c_~A~0.offset))) (or (< .cse4 .cse5) (forall ((v_thread3Thread1of1ForFork0_~i~2_109 Int)) (let ((.cse6 (select .cse7 (+ c_~A~0.offset (* v_thread3Thread1of1ForFork0_~i~2_109 4))))) (or (< c_~M~0 v_thread3Thread1of1ForFork0_~i~2_109) (<= c_~min3~0 .cse6) (<= .cse6 c_~min1~0) (< (+ v_thread3Thread1of1ForFork0_~i~2_109 1) c_~N~0)))) (<= c_~min2~0 .cse4))))) (forall ((v_ArrVal_1041 (Array Int Int))) (let ((.cse10 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_1041) c_~A~0.base))) (let ((.cse8 (select .cse10 c_~A~0.offset))) (or (<= c_~min2~0 .cse8) (forall ((v_thread3Thread1of1ForFork0_~i~2_109 Int)) (let ((.cse9 (select .cse10 (+ c_~A~0.offset (* v_thread3Thread1of1ForFork0_~i~2_109 4))))) (or (< c_~M~0 v_thread3Thread1of1ForFork0_~i~2_109) (<= c_~min3~0 .cse9) (<= c_~min1~0 .cse9) (<= .cse8 .cse9) (< (+ v_thread3Thread1of1ForFork0_~i~2_109 1) c_~N~0)))))))) (or (and .cse11 .cse3) (forall ((v_thread3Thread1of1ForFork0_~i~2_109 Int) (v_ArrVal_1041 (Array Int Int))) (let ((.cse13 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_1041) c_~A~0.base))) (let ((.cse12 (select .cse13 c_~A~0.offset))) (or (< .cse12 .cse5) (< c_~M~0 v_thread3Thread1of1ForFork0_~i~2_109) (< (+ v_thread3Thread1of1ForFork0_~i~2_109 1) c_~N~0) (<= c_~min2~0 .cse12) (< (select .cse13 (+ c_~A~0.offset (* v_thread3Thread1of1ForFork0_~i~2_109 4))) c_~min3~0)))))) (forall ((v_thread3Thread1of1ForFork0_~i~2_109 Int)) (or (< c_~M~0 v_thread3Thread1of1ForFork0_~i~2_109) (forall ((v_ArrVal_1041 (Array Int Int))) (let ((.cse15 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_1041) c_~A~0.base))) (let ((.cse14 (select .cse15 c_~A~0.offset))) (or (<= .cse14 c_~min3~0) (<= c_~min1~0 .cse14) (<= c_~min2~0 .cse14) (< (select .cse15 (+ c_~A~0.offset (* v_thread3Thread1of1ForFork0_~i~2_109 4))) c_~min3~0))))) (< (+ v_thread3Thread1of1ForFork0_~i~2_109 1) c_~N~0))) (or (forall ((v_thread3Thread1of1ForFork0_~i~2_109 Int) (v_ArrVal_1041 (Array Int Int))) (let ((.cse16 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_1041) c_~A~0.base))) (or (< c_~M~0 v_thread3Thread1of1ForFork0_~i~2_109) (<= c_~min3~0 (select .cse16 (+ c_~A~0.offset (* v_thread3Thread1of1ForFork0_~i~2_109 4)))) (< (+ v_thread3Thread1of1ForFork0_~i~2_109 1) c_~N~0) (< (select .cse16 c_~A~0.offset) c_~min2~0)))) .cse17) (or (and (<= c_~min2~0 c_~min3~0) .cse18 .cse17) (and .cse11 .cse17 .cse3) (forall ((v_thread3Thread1of1ForFork0_~i~2_109 Int) (v_ArrVal_1041 (Array Int Int))) (let ((.cse19 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_1041) c_~A~0.base))) (or (< c_~M~0 v_thread3Thread1of1ForFork0_~i~2_109) (< (+ v_thread3Thread1of1ForFork0_~i~2_109 1) c_~N~0) (< (select .cse19 (+ c_~A~0.offset (* v_thread3Thread1of1ForFork0_~i~2_109 4))) c_~min3~0) (< (select .cse19 c_~A~0.offset) c_~min2~0))))) (forall ((v_ArrVal_1041 (Array Int Int))) (let ((.cse20 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_1041) c_~A~0.base))) (let ((.cse21 (select .cse20 c_~A~0.offset))) (or (forall ((v_thread3Thread1of1ForFork0_~i~2_109 Int)) (or (< c_~M~0 v_thread3Thread1of1ForFork0_~i~2_109) (<= c_~min3~0 (select .cse20 (+ c_~A~0.offset (* v_thread3Thread1of1ForFork0_~i~2_109 4)))) (< (+ v_thread3Thread1of1ForFork0_~i~2_109 1) c_~N~0))) (<= c_~min1~0 .cse21) (<= c_~min2~0 .cse21))))) (or .cse18 (forall ((v_thread3Thread1of1ForFork0_~i~2_109 Int) (v_ArrVal_1041 (Array Int Int))) (let ((.cse23 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_1041) c_~A~0.base))) (let ((.cse22 (select .cse23 (+ c_~A~0.offset (* v_thread3Thread1of1ForFork0_~i~2_109 4))))) (or (< c_~M~0 v_thread3Thread1of1ForFork0_~i~2_109) (<= c_~min3~0 .cse22) (<= .cse22 c_~min1~0) (< (+ v_thread3Thread1of1ForFork0_~i~2_109 1) c_~N~0) (< (select .cse23 c_~A~0.offset) c_~min2~0)))))) (or .cse2 .cse11) (forall ((v_thread3Thread1of1ForFork0_~i~2_109 Int)) (or (< c_~M~0 v_thread3Thread1of1ForFork0_~i~2_109) (< (+ v_thread3Thread1of1ForFork0_~i~2_109 1) c_~N~0) (forall ((v_ArrVal_1041 (Array Int Int))) (let ((.cse25 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_1041) c_~A~0.base))) (let ((.cse24 (select .cse25 c_~A~0.offset))) (or (<= c_~min1~0 .cse24) (<= c_~min2~0 .cse24) (< (select .cse25 (+ c_~A~0.offset (* v_thread3Thread1of1ForFork0_~i~2_109 4))) c_~min3~0)))))))))) is different from false [2023-01-28 04:42:25,965 WARN L839 $PredicateComparison]: unable to prove that (let ((.cse9 (+ c_~min1~0 1))) (let ((.cse5 (forall ((v_thread3Thread1of1ForFork0_~i~2_109 Int) (v_ArrVal_1041 (Array Int Int)) (v_ArrVal_1040 (Array Int Int))) (let ((.cse27 (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_1040) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_1041) c_~A~0.base))) (let ((.cse26 (select .cse27 c_~A~0.offset))) (or (<= c_~min2~0 .cse26) (<= .cse26 c_~min3~0) (< c_~M~0 v_thread3Thread1of1ForFork0_~i~2_109) (< (select .cse27 (+ c_~A~0.offset (* v_thread3Thread1of1ForFork0_~i~2_109 4))) c_~min3~0) (< (+ v_thread3Thread1of1ForFork0_~i~2_109 1) c_~N~0)))))) (.cse1 (<= c_~min1~0 c_~min2~0)) (.cse0 (< c_~min2~0 .cse9)) (.cse2 (<= c_~min3~0 c_~min1~0)) (.cse3 (<= c_~min1~0 c_~min3~0))) (and (or (and (<= c_~min2~0 c_~min3~0) .cse0 .cse1) (and .cse2 .cse1 .cse3) (forall ((v_thread3Thread1of1ForFork0_~i~2_109 Int) (v_ArrVal_1041 (Array Int Int)) (v_ArrVal_1040 (Array Int Int))) (let ((.cse4 (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_1040) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_1041) c_~A~0.base))) (or (< c_~M~0 v_thread3Thread1of1ForFork0_~i~2_109) (< (select .cse4 (+ c_~A~0.offset (* v_thread3Thread1of1ForFork0_~i~2_109 4))) c_~min3~0) (< (select .cse4 c_~A~0.offset) c_~min2~0) (< (+ v_thread3Thread1of1ForFork0_~i~2_109 1) c_~N~0))))) (or .cse2 .cse5) (forall ((v_ArrVal_1041 (Array Int Int)) (v_ArrVal_1040 (Array Int Int))) (let ((.cse7 (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_1040) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_1041) c_~A~0.base))) (let ((.cse8 (select .cse7 c_~A~0.offset))) (or (forall ((v_thread3Thread1of1ForFork0_~i~2_109 Int)) (let ((.cse6 (select .cse7 (+ c_~A~0.offset (* v_thread3Thread1of1ForFork0_~i~2_109 4))))) (or (< c_~M~0 v_thread3Thread1of1ForFork0_~i~2_109) (<= c_~min3~0 .cse6) (<= .cse6 c_~min1~0) (< (+ v_thread3Thread1of1ForFork0_~i~2_109 1) c_~N~0)))) (<= c_~min2~0 .cse8) (< .cse8 .cse9))))) (or .cse5 .cse3) (or .cse1 (forall ((v_thread3Thread1of1ForFork0_~i~2_109 Int) (v_ArrVal_1041 (Array Int Int)) (v_ArrVal_1040 (Array Int Int))) (let ((.cse10 (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_1040) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_1041) c_~A~0.base))) (or (< c_~M~0 v_thread3Thread1of1ForFork0_~i~2_109) (<= c_~min3~0 (select .cse10 (+ c_~A~0.offset (* v_thread3Thread1of1ForFork0_~i~2_109 4)))) (< (select .cse10 c_~A~0.offset) c_~min2~0) (< (+ v_thread3Thread1of1ForFork0_~i~2_109 1) c_~N~0))))) (or (forall ((v_thread3Thread1of1ForFork0_~i~2_109 Int) (v_ArrVal_1041 (Array Int Int)) (v_ArrVal_1040 (Array Int Int))) (let ((.cse12 (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_1040) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_1041) c_~A~0.base))) (let ((.cse11 (select .cse12 (+ c_~A~0.offset (* v_thread3Thread1of1ForFork0_~i~2_109 4))))) (or (< c_~M~0 v_thread3Thread1of1ForFork0_~i~2_109) (<= c_~min3~0 .cse11) (< (select .cse12 c_~A~0.offset) c_~min2~0) (<= .cse11 c_~min1~0) (< (+ v_thread3Thread1of1ForFork0_~i~2_109 1) c_~N~0))))) .cse0) (forall ((v_ArrVal_1041 (Array Int Int)) (v_ArrVal_1040 (Array Int Int))) (let ((.cse15 (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_1040) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_1041) c_~A~0.base))) (let ((.cse13 (select .cse15 c_~A~0.offset))) (or (<= c_~min2~0 .cse13) (forall ((v_thread3Thread1of1ForFork0_~i~2_109 Int)) (let ((.cse14 (select .cse15 (+ c_~A~0.offset (* v_thread3Thread1of1ForFork0_~i~2_109 4))))) (or (<= c_~min1~0 .cse14) (< c_~M~0 v_thread3Thread1of1ForFork0_~i~2_109) (<= c_~min3~0 .cse14) (< (+ v_thread3Thread1of1ForFork0_~i~2_109 1) c_~N~0) (<= .cse13 .cse14)))))))) (forall ((v_ArrVal_1041 (Array Int Int)) (v_ArrVal_1040 (Array Int Int))) (let ((.cse17 (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_1040) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_1041) c_~A~0.base))) (let ((.cse16 (select .cse17 c_~A~0.offset))) (or (<= c_~min2~0 .cse16) (forall ((v_thread3Thread1of1ForFork0_~i~2_109 Int)) (or (< c_~M~0 v_thread3Thread1of1ForFork0_~i~2_109) (<= c_~min3~0 (select .cse17 (+ c_~A~0.offset (* v_thread3Thread1of1ForFork0_~i~2_109 4)))) (< (+ v_thread3Thread1of1ForFork0_~i~2_109 1) c_~N~0))) (<= c_~min1~0 .cse16))))) (forall ((v_ArrVal_1041 (Array Int Int)) (v_ArrVal_1040 (Array Int Int))) (let ((.cse18 (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_1040) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_1041) c_~A~0.base))) (or (< (select .cse18 c_~A~0.offset) c_~min2~0) (forall ((v_thread3Thread1of1ForFork0_~i~2_109 Int)) (let ((.cse19 (select .cse18 (+ c_~A~0.offset (* v_thread3Thread1of1ForFork0_~i~2_109 4))))) (or (<= c_~min1~0 .cse19) (< c_~M~0 v_thread3Thread1of1ForFork0_~i~2_109) (<= c_~min3~0 .cse19) (<= c_~min2~0 .cse19) (< (+ v_thread3Thread1of1ForFork0_~i~2_109 1) c_~N~0))))))) (forall ((v_thread3Thread1of1ForFork0_~i~2_109 Int) (v_ArrVal_1040 (Array Int Int))) (or (< c_~M~0 v_thread3Thread1of1ForFork0_~i~2_109) (forall ((v_ArrVal_1041 (Array Int Int))) (let ((.cse21 (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_1040) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_1041) c_~A~0.base))) (let ((.cse20 (select .cse21 c_~A~0.offset))) (or (<= c_~min2~0 .cse20) (<= .cse20 c_~min3~0) (< (select .cse21 (+ c_~A~0.offset (* v_thread3Thread1of1ForFork0_~i~2_109 4))) c_~min3~0) (<= c_~min1~0 .cse20))))) (< (+ v_thread3Thread1of1ForFork0_~i~2_109 1) c_~N~0))) (forall ((v_thread3Thread1of1ForFork0_~i~2_109 Int) (v_ArrVal_1040 (Array Int Int))) (or (forall ((v_ArrVal_1041 (Array Int Int))) (let ((.cse23 (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_1040) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_1041) c_~A~0.base))) (let ((.cse22 (select .cse23 c_~A~0.offset))) (or (<= c_~min2~0 .cse22) (< (select .cse23 (+ c_~A~0.offset (* v_thread3Thread1of1ForFork0_~i~2_109 4))) c_~min3~0) (<= c_~min1~0 .cse22))))) (< c_~M~0 v_thread3Thread1of1ForFork0_~i~2_109) (< (+ v_thread3Thread1of1ForFork0_~i~2_109 1) c_~N~0))) (or (forall ((v_thread3Thread1of1ForFork0_~i~2_109 Int) (v_ArrVal_1041 (Array Int Int)) (v_ArrVal_1040 (Array Int Int))) (let ((.cse25 (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_1040) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_1041) c_~A~0.base))) (let ((.cse24 (select .cse25 c_~A~0.offset))) (or (<= c_~min2~0 .cse24) (< c_~M~0 v_thread3Thread1of1ForFork0_~i~2_109) (< (select .cse25 (+ c_~A~0.offset (* v_thread3Thread1of1ForFork0_~i~2_109 4))) c_~min3~0) (< .cse24 .cse9) (< (+ v_thread3Thread1of1ForFork0_~i~2_109 1) c_~N~0))))) (and .cse2 .cse3))))) is different from false [2023-01-28 04:42:40,214 WARN L222 SmtUtils]: Spent 7.30s on a formula simplification. DAG size of input: 185 DAG size of output: 183 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-01-28 04:43:12,961 WARN L222 SmtUtils]: Spent 14.12s on a formula simplification that was a NOOP. DAG size: 260 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-01-28 04:43:14,743 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-01-28 04:43:14,744 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 182 treesize of output 110 [2023-01-28 04:43:14,763 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-01-28 04:43:14,763 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 1303 treesize of output 1167 [2023-01-28 04:43:14,810 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-01-28 04:43:14,810 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 258 treesize of output 246 [2023-01-28 04:43:14,838 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-01-28 04:43:14,838 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 210 treesize of output 190 [2023-01-28 04:43:14,863 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-01-28 04:43:14,863 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 242 treesize of output 210 [2023-01-28 04:43:16,603 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-01-28 04:43:16,605 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 201 treesize of output 117 [2023-01-28 04:43:16,633 INFO L321 Elim1Store]: treesize reduction 5, result has 70.6 percent of original size [2023-01-28 04:43:16,633 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 5101 treesize of output 4548 [2023-01-28 04:43:16,726 INFO L173 IndexEqualityManager]: detected equality via solver [2023-01-28 04:43:16,733 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-01-28 04:43:16,734 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 291 treesize of output 261 [2023-01-28 04:43:16,755 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-01-28 04:43:16,755 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 170 treesize of output 158 [2023-01-28 04:43:16,777 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-01-28 04:43:16,777 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 187 treesize of output 155 [2023-01-28 04:43:17,141 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-01-28 04:43:17,141 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 156 treesize of output 96 [2023-01-28 04:43:17,160 INFO L321 Elim1Store]: treesize reduction 13, result has 23.5 percent of original size [2023-01-28 04:43:17,161 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 2414 treesize of output 2136 [2023-01-28 04:43:17,234 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-01-28 04:43:17,234 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 180 treesize of output 164 [2023-01-28 04:43:17,262 INFO L321 Elim1Store]: treesize reduction 13, result has 23.5 percent of original size [2023-01-28 04:43:17,262 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 242 treesize of output 214 [2023-01-28 04:43:17,286 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-01-28 04:43:17,286 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 179 treesize of output 143 [2023-01-28 04:43:17,293 INFO L208 tifierPushTermWalker]: Run 10 iterations without descend maybe there is a nontermination bug. [2023-01-28 04:43:17,493 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2023-01-28 04:43:17,493 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 148 treesize of output 1 [2023-01-28 04:43:17,502 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-01-28 04:43:17,502 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 148 treesize of output 88 [2023-01-28 04:43:17,506 INFO L173 IndexEqualityManager]: detected equality via solver [2023-01-28 04:43:17,506 INFO L173 IndexEqualityManager]: detected equality via solver [2023-01-28 04:43:17,515 INFO L321 Elim1Store]: treesize reduction 13, result has 23.5 percent of original size [2023-01-28 04:43:17,515 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 124 treesize of output 98 [2023-01-28 04:43:17,528 INFO L321 Elim1Store]: treesize reduction 13, result has 23.5 percent of original size [2023-01-28 04:43:17,528 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 54 treesize of output 40 [2023-01-28 04:43:17,563 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-01-28 04:43:17,564 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 131 treesize of output 83 [2023-01-28 04:43:17,569 INFO L173 IndexEqualityManager]: detected equality via solver [2023-01-28 04:43:17,570 INFO L173 IndexEqualityManager]: detected equality via solver [2023-01-28 04:43:17,580 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-01-28 04:43:17,581 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 122 treesize of output 110 [2023-01-28 04:43:17,599 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-01-28 04:43:17,599 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 54 treesize of output 52 [2023-01-28 04:43:17,949 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-01-28 04:43:17,949 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 107 treesize of output 71 [2023-01-28 04:43:17,953 INFO L173 IndexEqualityManager]: detected equality via solver [2023-01-28 04:43:17,953 INFO L173 IndexEqualityManager]: detected equality via solver [2023-01-28 04:43:17,965 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-01-28 04:43:17,965 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 97 treesize of output 91 [2023-01-28 04:43:17,982 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-01-28 04:43:17,982 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 43 treesize of output 45 [2023-01-28 04:43:18,115 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2023-01-28 04:43:18,116 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 217 treesize of output 1 [2023-01-28 04:43:18,132 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-01-28 04:43:18,133 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 150 treesize of output 90 [2023-01-28 04:43:18,138 INFO L173 IndexEqualityManager]: detected equality via solver [2023-01-28 04:43:18,139 INFO L173 IndexEqualityManager]: detected equality via solver [2023-01-28 04:43:18,153 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-01-28 04:43:18,153 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 128 treesize of output 112 [2023-01-28 04:43:18,174 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-01-28 04:43:18,174 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 56 treesize of output 52 [2023-01-28 04:43:18,327 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-01-28 04:43:18,327 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 150 treesize of output 90 [2023-01-28 04:43:18,332 INFO L173 IndexEqualityManager]: detected equality via solver [2023-01-28 04:43:18,332 INFO L173 IndexEqualityManager]: detected equality via solver [2023-01-28 04:43:18,344 INFO L321 Elim1Store]: treesize reduction 13, result has 23.5 percent of original size [2023-01-28 04:43:18,344 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 128 treesize of output 100 [2023-01-28 04:43:18,375 INFO L321 Elim1Store]: treesize reduction 13, result has 23.5 percent of original size [2023-01-28 04:43:18,376 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 56 treesize of output 40 [2023-01-28 04:43:18,404 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-01-28 04:43:18,405 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 230 treesize of output 134 [2023-01-28 04:43:18,411 INFO L173 IndexEqualityManager]: detected equality via solver [2023-01-28 04:43:18,411 INFO L173 IndexEqualityManager]: detected equality via solver [2023-01-28 04:43:18,426 INFO L321 Elim1Store]: treesize reduction 9, result has 47.1 percent of original size [2023-01-28 04:43:18,426 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 273 treesize of output 206 [2023-01-28 04:43:18,475 INFO L321 Elim1Store]: treesize reduction 13, result has 23.5 percent of original size [2023-01-28 04:43:18,475 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 77 treesize of output 49 [2023-01-28 04:43:18,528 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2023-01-28 04:43:18,528 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 234 treesize of output 1 [2023-01-28 04:43:18,547 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-01-28 04:43:18,548 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 135 treesize of output 87 [2023-01-28 04:43:18,554 INFO L173 IndexEqualityManager]: detected equality via solver [2023-01-28 04:43:18,554 INFO L173 IndexEqualityManager]: detected equality via solver [2023-01-28 04:43:18,565 INFO L321 Elim1Store]: treesize reduction 13, result has 23.5 percent of original size [2023-01-28 04:43:18,565 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 118 treesize of output 96 [2023-01-28 04:43:18,593 INFO L321 Elim1Store]: treesize reduction 13, result has 23.5 percent of original size [2023-01-28 04:43:18,593 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 40 [2023-01-28 04:43:18,624 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2023-01-28 04:43:18,624 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 157 treesize of output 1 [2023-01-28 04:43:18,639 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2023-01-28 04:43:18,639 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 172 treesize of output 1 [2023-01-28 04:43:18,649 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2023-01-28 04:43:18,650 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 159 treesize of output 1 [2023-01-28 04:43:18,670 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2023-01-28 04:43:18,672 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 150 treesize of output 1 [2023-01-28 04:43:18,686 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-01-28 04:43:18,686 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 137 treesize of output 89 [2023-01-28 04:43:18,692 INFO L173 IndexEqualityManager]: detected equality via solver [2023-01-28 04:43:18,693 INFO L173 IndexEqualityManager]: detected equality via solver [2023-01-28 04:43:18,704 INFO L321 Elim1Store]: treesize reduction 13, result has 23.5 percent of original size [2023-01-28 04:43:18,705 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 122 treesize of output 100 [2023-01-28 04:43:18,724 INFO L321 Elim1Store]: treesize reduction 13, result has 23.5 percent of original size [2023-01-28 04:43:18,724 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 54 treesize of output 42 [2023-01-28 04:43:18,762 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-01-28 04:43:18,762 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 178 treesize of output 106 [2023-01-28 04:43:18,769 INFO L173 IndexEqualityManager]: detected equality via solver [2023-01-28 04:43:18,769 INFO L173 IndexEqualityManager]: detected equality via solver [2023-01-28 04:43:18,784 INFO L321 Elim1Store]: treesize reduction 13, result has 23.5 percent of original size [2023-01-28 04:43:18,784 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 149 treesize of output 117 [2023-01-28 04:43:18,823 INFO L321 Elim1Store]: treesize reduction 13, result has 23.5 percent of original size [2023-01-28 04:43:18,824 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 65 treesize of output 47 [2023-01-28 04:43:18,860 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2023-01-28 04:43:18,860 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 156 treesize of output 1 [2023-01-28 04:43:18,876 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2023-01-28 04:43:18,877 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 172 treesize of output 1 [2023-01-28 04:43:18,888 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2023-01-28 04:43:18,888 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 150 treesize of output 1 [2023-01-28 04:43:18,907 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-01-28 04:43:18,908 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 148 treesize of output 88 [2023-01-28 04:43:18,941 INFO L173 IndexEqualityManager]: detected equality via solver [2023-01-28 04:43:18,941 INFO L173 IndexEqualityManager]: detected equality via solver [2023-01-28 04:43:18,958 INFO L321 Elim1Store]: treesize reduction 13, result has 23.5 percent of original size [2023-01-28 04:43:18,958 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 124 treesize of output 98 [2023-01-28 04:43:18,997 INFO L321 Elim1Store]: treesize reduction 13, result has 23.5 percent of original size [2023-01-28 04:43:18,997 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 54 treesize of output 40 [2023-01-28 04:43:19,041 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-01-28 04:43:19,041 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 139 treesize of output 91 [2023-01-28 04:43:19,049 INFO L173 IndexEqualityManager]: detected equality via solver [2023-01-28 04:43:19,049 INFO L173 IndexEqualityManager]: detected equality via solver [2023-01-28 04:43:19,065 INFO L321 Elim1Store]: treesize reduction 13, result has 23.5 percent of original size [2023-01-28 04:43:19,065 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 126 treesize of output 100 [2023-01-28 04:43:19,087 INFO L321 Elim1Store]: treesize reduction 13, result has 23.5 percent of original size [2023-01-28 04:43:19,087 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 56 treesize of output 40 [2023-01-28 04:43:19,145 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-01-28 04:43:19,145 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 176 treesize of output 104 [2023-01-28 04:43:19,153 INFO L173 IndexEqualityManager]: detected equality via solver [2023-01-28 04:43:19,154 INFO L173 IndexEqualityManager]: detected equality via solver [2023-01-28 04:43:19,170 INFO L321 Elim1Store]: treesize reduction 13, result has 23.5 percent of original size [2023-01-28 04:43:19,170 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 124 treesize of output 98 [2023-01-28 04:43:19,192 INFO L321 Elim1Store]: treesize reduction 13, result has 23.5 percent of original size [2023-01-28 04:43:19,193 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 54 treesize of output 40 [2023-01-28 04:43:19,260 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2023-01-28 04:43:19,261 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 169 treesize of output 1 [2023-01-28 04:43:19,302 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-01-28 04:43:19,302 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 107 treesize of output 71 [2023-01-28 04:43:19,311 INFO L173 IndexEqualityManager]: detected equality via solver [2023-01-28 04:43:19,311 INFO L173 IndexEqualityManager]: detected equality via solver [2023-01-28 04:43:19,329 INFO L321 Elim1Store]: treesize reduction 13, result has 23.5 percent of original size [2023-01-28 04:43:19,329 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 97 treesize of output 79 [2023-01-28 04:43:19,355 INFO L321 Elim1Store]: treesize reduction 13, result has 23.5 percent of original size [2023-01-28 04:43:19,355 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 43 treesize of output 33 [2023-01-28 04:43:19,419 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2023-01-28 04:43:19,419 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 226 treesize of output 1 [2023-01-28 04:43:19,444 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2023-01-28 04:43:19,444 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 155 treesize of output 1 [2023-01-28 04:43:19,463 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2023-01-28 04:43:19,463 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 173 treesize of output 1 [2023-01-28 04:43:19,488 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2023-01-28 04:43:19,489 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 205 treesize of output 1 [2023-01-28 04:43:19,508 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2023-01-28 04:43:19,508 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 176 treesize of output 1 [2023-01-28 04:43:19,528 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2023-01-28 04:43:19,528 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 135 treesize of output 1 [2023-01-28 04:43:19,562 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2023-01-28 04:43:19,563 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 131 treesize of output 1 [2023-01-28 04:43:19,583 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2023-01-28 04:43:19,583 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 175 treesize of output 1 [2023-01-28 04:43:19,612 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2023-01-28 04:43:19,612 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 171 treesize of output 1 [2023-01-28 04:43:19,633 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2023-01-28 04:43:19,633 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 196 treesize of output 1 [2023-01-28 04:43:19,666 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2023-01-28 04:43:19,666 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 176 treesize of output 1 [2023-01-28 04:43:19,691 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2023-01-28 04:43:19,691 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 236 treesize of output 1 [2023-01-28 04:43:19,714 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2023-01-28 04:43:19,715 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 174 treesize of output 1 [2023-01-28 04:43:19,735 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2023-01-28 04:43:19,735 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 155 treesize of output 1 [2023-01-28 04:43:19,759 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2023-01-28 04:43:19,760 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 201 treesize of output 1 [2023-01-28 04:43:19,781 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2023-01-28 04:43:19,782 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 157 treesize of output 1 [2023-01-28 04:43:19,799 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2023-01-28 04:43:19,799 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 176 treesize of output 1 [2023-01-28 04:43:19,819 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2023-01-28 04:43:19,819 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 211 treesize of output 1 [2023-01-28 04:43:19,844 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2023-01-28 04:43:19,845 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 131 treesize of output 1 [2023-01-28 04:43:19,866 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2023-01-28 04:43:19,867 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 173 treesize of output 1 [2023-01-28 04:43:19,882 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2023-01-28 04:43:19,882 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 174 treesize of output 1 [2023-01-28 04:43:19,898 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2023-01-28 04:43:19,898 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 148 treesize of output 1 [2023-01-28 04:43:19,920 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2023-01-28 04:43:19,920 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 192 treesize of output 1 [2023-01-28 04:43:19,939 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2023-01-28 04:43:19,940 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 209 treesize of output 1 [2023-01-28 04:43:19,960 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2023-01-28 04:43:19,960 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 175 treesize of output 1 [2023-01-28 04:43:19,995 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2023-01-28 04:43:19,995 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 135 treesize of output 1 [2023-01-28 04:43:20,021 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2023-01-28 04:43:20,021 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 159 treesize of output 1 [2023-01-28 04:43:20,048 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2023-01-28 04:43:20,049 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 178 treesize of output 1 [2023-01-28 04:43:20,073 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2023-01-28 04:43:20,073 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 197 treesize of output 1 [2023-01-28 04:43:20,091 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2023-01-28 04:43:20,092 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 211 treesize of output 1 [2023-01-28 04:43:20,122 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2023-01-28 04:43:20,122 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 186 treesize of output 1 [2023-01-28 04:43:20,138 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2023-01-28 04:43:20,139 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 131 treesize of output 1 [2023-01-28 04:43:20,155 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2023-01-28 04:43:20,156 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 135 treesize of output 1 [2023-01-28 04:43:20,588 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 04:43:20,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [132996808] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-28 04:43:20,588 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-28 04:43:20,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 14, 14] total 39 [2023-01-28 04:43:20,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899499911] [2023-01-28 04:43:20,588 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-28 04:43:20,588 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2023-01-28 04:43:20,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 04:43:20,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2023-01-28 04:43:20,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=150, Invalid=1328, Unknown=12, NotChecked=150, Total=1640 [2023-01-28 04:43:20,590 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 267 [2023-01-28 04:43:20,591 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 245 places, 599 transitions, 10005 flow. Second operand has 41 states, 41 states have (on average 70.82926829268293) internal successors, (2904), 41 states have internal predecessors, (2904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 04:43:20,591 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 04:43:20,591 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 267 [2023-01-28 04:43:20,591 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 04:43:40,397 WARN L222 SmtUtils]: Spent 8.08s on a formula simplification. DAG size of input: 274 DAG size of output: 124 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-01-28 04:43:54,470 WARN L222 SmtUtils]: Spent 6.08s on a formula simplification. DAG size of input: 238 DAG size of output: 107 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-01-28 04:43:56,648 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-01-28 04:44:12,298 WARN L222 SmtUtils]: Spent 11.89s on a formula simplification. DAG size of input: 186 DAG size of output: 93 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-01-28 04:44:14,503 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-01-28 04:44:17,427 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-01-28 04:44:19,649 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-01-28 04:44:22,811 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-01-28 04:44:28,684 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-01-28 04:44:31,069 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-01-28 04:44:33,197 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-01-28 04:44:34,773 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-01-28 04:44:36,855 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-01-28 04:44:39,188 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-01-28 04:44:43,772 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-01-28 04:44:46,015 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-01-28 04:44:48,809 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-01-28 04:46:53,374 WARN L222 SmtUtils]: Spent 2.02m on a formula simplification. DAG size of input: 287 DAG size of output: 152 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-01-28 04:46:55,510 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-01-28 04:46:58,377 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-01-28 04:47:00,430 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-01-28 04:48:42,399 WARN L222 SmtUtils]: Spent 1.59m on a formula simplification. DAG size of input: 238 DAG size of output: 130 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-01-28 04:48:44,535 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-01-28 04:48:50,004 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-01-28 04:48:58,347 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-01-28 04:49:00,652 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-01-28 04:49:02,313 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-01-28 04:49:05,862 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-01-28 04:49:11,834 WARN L222 SmtUtils]: Spent 5.61s on a formula simplification. DAG size of input: 342 DAG size of output: 138 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-01-28 04:49:14,043 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-01-28 04:49:42,348 WARN L222 SmtUtils]: Spent 6.77s on a formula simplification. DAG size of input: 303 DAG size of output: 125 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-01-28 04:49:44,909 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-01-28 04:49:47,185 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-01-28 04:49:49,435 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-01-28 04:49:52,350 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-01-28 04:49:54,454 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-01-28 04:49:57,645 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-01-28 04:53:42,499 WARN L222 SmtUtils]: Spent 3.52m on a formula simplification. DAG size of input: 283 DAG size of output: 185 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-01-28 04:53:44,560 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-01-28 04:53:46,685 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-01-28 04:54:18,700 WARN L222 SmtUtils]: Spent 18.97s on a formula simplification. DAG size of input: 232 DAG size of output: 145 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-01-28 04:54:20,832 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-01-28 04:54:23,295 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-01-28 04:54:40,238 WARN L222 SmtUtils]: Spent 7.22s on a formula simplification. DAG size of input: 267 DAG size of output: 108 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-01-28 04:54:42,690 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-01-28 04:54:49,557 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-01-28 04:54:56,614 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-01-28 04:54:59,096 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-01-28 04:55:01,382 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-01-28 04:55:06,741 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] Received shutdown request... [2023-01-28 04:55:09,308 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-01-28 04:55:09,312 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-01-28 04:55:10,311 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-01-28 04:55:10,312 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2023-01-28 04:55:10,319 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2023-01-28 04:55:10,509 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2023-01-28 04:55:10,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 04:55:10,513 WARN L619 AbstractCegarLoop]: Verification canceled: while executing Executor. [2023-01-28 04:55:10,514 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2023-01-28 04:55:10,515 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2023-01-28 04:55:10,515 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2023-01-28 04:55:10,515 INFO L445 BasicCegarLoop]: Path program histogram: [18, 3, 1, 1] [2023-01-28 04:55:10,517 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-01-28 04:55:10,517 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-01-28 04:55:10,518 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.01 04:55:10 BasicIcfg [2023-01-28 04:55:10,518 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-01-28 04:55:10,518 INFO L158 Benchmark]: Toolchain (without parser) took 861952.76ms. Allocated memory was 497.0MB in the beginning and 6.6GB in the end (delta: 6.1GB). Free memory was 449.7MB in the beginning and 2.5GB in the end (delta: -2.1GB). Peak memory consumption was 4.0GB. Max. memory is 16.0GB. [2023-01-28 04:55:10,519 INFO L158 Benchmark]: CDTParser took 0.08ms. Allocated memory is still 348.1MB. Free memory is still 297.0MB. There was no memory consumed. Max. memory is 16.0GB. [2023-01-28 04:55:10,519 INFO L158 Benchmark]: CACSL2BoogieTranslator took 167.58ms. Allocated memory is still 497.0MB. Free memory was 449.7MB in the beginning and 438.2MB in the end (delta: 11.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. [2023-01-28 04:55:10,519 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.70ms. Allocated memory is still 497.0MB. Free memory was 438.2MB in the beginning and 436.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-01-28 04:55:10,519 INFO L158 Benchmark]: Boogie Preprocessor took 17.11ms. Allocated memory is still 497.0MB. Free memory was 436.3MB in the beginning and 434.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-01-28 04:55:10,519 INFO L158 Benchmark]: RCFGBuilder took 412.28ms. Allocated memory is still 497.0MB. Free memory was 434.7MB in the beginning and 413.7MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. [2023-01-28 04:55:10,519 INFO L158 Benchmark]: TraceAbstraction took 861330.29ms. Allocated memory was 497.0MB in the beginning and 6.6GB in the end (delta: 6.1GB). Free memory was 413.0MB in the beginning and 2.5GB in the end (delta: -2.1GB). Peak memory consumption was 4.0GB. Max. memory is 16.0GB. [2023-01-28 04:55:10,519 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.08ms. Allocated memory is still 348.1MB. Free memory is still 297.0MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 167.58ms. Allocated memory is still 497.0MB. Free memory was 449.7MB in the beginning and 438.2MB in the end (delta: 11.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 21.70ms. Allocated memory is still 497.0MB. Free memory was 438.2MB in the beginning and 436.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 17.11ms. Allocated memory is still 497.0MB. Free memory was 436.3MB in the beginning and 434.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 412.28ms. Allocated memory is still 497.0MB. Free memory was 434.7MB in the beginning and 413.7MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. * TraceAbstraction took 861330.29ms. Allocated memory was 497.0MB in the beginning and 6.6GB in the end (delta: 6.1GB). Free memory was 413.0MB in the beginning and 2.5GB in the end (delta: -2.1GB). Peak memory consumption was 4.0GB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.7s, 130 PlacesBefore, 30 PlacesAfterwards, 132 TransitionsBefore, 24 TransitionsAfterwards, 1320 CoEnabledTransitionPairs, 7 FixpointIterations, 69 TrivialSequentialCompositions, 27 ConcurrentSequentialCompositions, 12 TrivialYvCompositions, 6 ConcurrentYvCompositions, 8 ChoiceCompositions, 122 TotalNumberOfCompositions, 1523 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1423, independent: 1404, independent conditional: 0, independent unconditional: 1404, dependent: 19, dependent conditional: 0, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 717, independent: 708, independent conditional: 0, independent unconditional: 708, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1423, independent: 696, independent conditional: 0, independent unconditional: 696, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 717, unknown conditional: 0, unknown unconditional: 717] , Statistics on independence cache: Total cache size (in pairs): 53, Positive cache size: 51, Positive conditional cache size: 0, Positive unconditional cache size: 51, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - TimeoutResultAtElement [Line: 100]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while executing Executor. - TimeoutResultAtElement [Line: 93]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing Executor. - TimeoutResultAtElement [Line: 94]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing Executor. - TimeoutResultAtElement [Line: 92]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 164 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 861.2s, OverallIterations: 23, TraceHistogramMax: 2, PathProgramHistogramMax: 18, EmptinessCheckTime: 0.0s, AutomataDifference: 766.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.8s, HoareTripleCheckerStatistics: 83 mSolverCounterUnknown, 4157 SdHoareTripleChecker+Valid, 118.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4157 mSDsluCounter, 1080 SdHoareTripleChecker+Invalid, 115.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 1137 IncrementalHoareTripleChecker+Unchecked, 948 mSDsCounter, 217 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 15613 IncrementalHoareTripleChecker+Invalid, 17051 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 217 mSolverCounterUnsat, 132 mSDtfsCounter, 15613 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1558 GetRequests, 759 SyntacticMatches, 46 SemanticMatches, 753 ConstructedPredicates, 6 IntricatePredicates, 1 DeprecatedPredicates, 7743 ImplicationChecksByTransitivity, 652.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17268occurred in iteration=10, InterpolantAutomatonStates: 406, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 83.6s InterpolantComputationTime, 1078 NumberOfCodeBlocks, 1067 NumberOfCodeBlocksAsserted, 63 NumberOfCheckSat, 1540 ConstructedInterpolants, 38 QuantifiedInterpolants, 47981 SizeOfPredicates, 244 NumberOfNonLiveVariables, 4729 ConjunctsInSsa, 445 ConjunctsInUnsatCore, 67 InterpolantComputations, 2 PerfectInterpolantSequences, 145/330 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown