/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/mix029_power.oepc_pso.oepc_rmo.oepc_tso.oepc_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-?-3902331-m [2022-09-20 22:26:34,154 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-20 22:26:34,155 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-20 22:26:34,195 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-20 22:26:34,196 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-20 22:26:34,198 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-20 22:26:34,201 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-20 22:26:34,206 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-20 22:26:34,208 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-20 22:26:34,214 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-20 22:26:34,215 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-20 22:26:34,215 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-20 22:26:34,216 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-20 22:26:34,216 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-20 22:26:34,217 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-20 22:26:34,218 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-20 22:26:34,218 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-20 22:26:34,219 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-20 22:26:34,220 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-20 22:26:34,221 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-20 22:26:34,222 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-20 22:26:34,228 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-20 22:26:34,233 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-20 22:26:34,235 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-20 22:26:34,243 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-09-20 22:26:34,246 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-09-20 22:26:34,247 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-09-20 22:26:34,247 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-09-20 22:26:34,248 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-09-20 22:26:34,248 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-09-20 22:26:34,249 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-09-20 22:26:34,249 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-09-20 22:26:34,249 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-09-20 22:26:34,250 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-20 22:26:34,250 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-20 22:26:34,251 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-20 22:26:34,256 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2022-09-20 22:26:34,289 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-20 22:26:34,289 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-20 22:26:34,290 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-20 22:26:34,291 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-20 22:26:34,291 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-20 22:26:34,292 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-20 22:26:34,292 INFO L138 SettingsManager]: * Use SBE=true [2022-09-20 22:26:34,292 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-20 22:26:34,292 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-20 22:26:34,292 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-20 22:26:34,293 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-20 22:26:34,293 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-20 22:26:34,293 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-20 22:26:34,293 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-20 22:26:34,293 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-20 22:26:34,294 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-20 22:26:34,294 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-20 22:26:34,294 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-20 22:26:34,294 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-20 22:26:34,294 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-20 22:26:34,294 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-20 22:26:34,294 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-20 22:26:34,294 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-20 22:26:34,295 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-20 22:26:34,295 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-20 22:26:34,295 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-20 22:26:34,295 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-20 22:26:34,295 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-20 22:26:34,295 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-20 22:26:34,296 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-20 22:26:34,296 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-09-20 22:26:34,296 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-09-20 22:26:34,514 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-20 22:26:34,533 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-20 22:26:34,536 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-20 22:26:34,537 INFO L271 PluginConnector]: Initializing CDTParser... [2022-09-20 22:26:34,539 INFO L275 PluginConnector]: CDTParser initialized [2022-09-20 22:26:34,540 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix029_power.oepc_pso.oepc_rmo.oepc_tso.oepc_tso.opt.i [2022-09-20 22:26:34,596 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d8d74f85/2013d2befa404b83bab4f3f05a93e230/FLAG2656b7157 [2022-09-20 22:26:35,104 INFO L306 CDTParser]: Found 1 translation units. [2022-09-20 22:26:35,105 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix029_power.oepc_pso.oepc_rmo.oepc_tso.oepc_tso.opt.i [2022-09-20 22:26:35,125 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d8d74f85/2013d2befa404b83bab4f3f05a93e230/FLAG2656b7157 [2022-09-20 22:26:35,419 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d8d74f85/2013d2befa404b83bab4f3f05a93e230 [2022-09-20 22:26:35,421 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-20 22:26:35,422 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-09-20 22:26:35,423 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-09-20 22:26:35,423 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-09-20 22:26:35,426 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-09-20 22:26:35,427 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 10:26:35" (1/1) ... [2022-09-20 22:26:35,427 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bdac7df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:26:35, skipping insertion in model container [2022-09-20 22:26:35,428 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 10:26:35" (1/1) ... [2022-09-20 22:26:35,433 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-09-20 22:26:35,471 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-09-20 22:26:35,625 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix029_power.oepc_pso.oepc_rmo.oepc_tso.oepc_tso.opt.i[986,999] [2022-09-20 22:26:35,837 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-20 22:26:35,844 INFO L203 MainTranslator]: Completed pre-run [2022-09-20 22:26:35,858 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix029_power.oepc_pso.oepc_rmo.oepc_tso.oepc_tso.opt.i[986,999] [2022-09-20 22:26:35,925 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-20 22:26:35,969 INFO L208 MainTranslator]: Completed translation [2022-09-20 22:26:35,970 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:26:35 WrapperNode [2022-09-20 22:26:35,970 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-09-20 22:26:35,971 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-20 22:26:35,972 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-20 22:26:35,972 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-20 22:26:35,978 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:26:35" (1/1) ... [2022-09-20 22:26:36,014 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:26:35" (1/1) ... [2022-09-20 22:26:36,053 INFO L138 Inliner]: procedures = 177, calls = 69, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 192 [2022-09-20 22:26:36,053 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-20 22:26:36,054 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-20 22:26:36,054 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-20 22:26:36,054 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-20 22:26:36,062 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:26:35" (1/1) ... [2022-09-20 22:26:36,062 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:26:35" (1/1) ... [2022-09-20 22:26:36,077 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:26:35" (1/1) ... [2022-09-20 22:26:36,077 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:26:35" (1/1) ... [2022-09-20 22:26:36,089 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:26:35" (1/1) ... [2022-09-20 22:26:36,092 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:26:35" (1/1) ... [2022-09-20 22:26:36,095 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:26:35" (1/1) ... [2022-09-20 22:26:36,099 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-20 22:26:36,100 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-20 22:26:36,100 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-20 22:26:36,100 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-20 22:26:36,101 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:26:35" (1/1) ... [2022-09-20 22:26:36,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-20 22:26:36,129 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-20 22:26:36,149 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-09-20 22:26:36,173 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-09-20 22:26:36,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-09-20 22:26:36,190 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-09-20 22:26:36,190 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-09-20 22:26:36,190 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-09-20 22:26:36,190 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-09-20 22:26:36,190 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-09-20 22:26:36,190 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-09-20 22:26:36,190 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-09-20 22:26:36,191 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-09-20 22:26:36,191 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-09-20 22:26:36,191 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-09-20 22:26:36,191 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-09-20 22:26:36,191 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-09-20 22:26:36,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-09-20 22:26:36,192 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-09-20 22:26:36,192 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-20 22:26:36,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-20 22:26:36,193 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-09-20 22:26:36,372 INFO L234 CfgBuilder]: Building ICFG [2022-09-20 22:26:36,373 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-20 22:26:36,791 INFO L275 CfgBuilder]: Performing block encoding [2022-09-20 22:26:37,099 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-20 22:26:37,100 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-09-20 22:26:37,102 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 10:26:37 BoogieIcfgContainer [2022-09-20 22:26:37,102 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-20 22:26:37,104 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-20 22:26:37,104 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-20 22:26:37,108 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-20 22:26:37,108 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 10:26:35" (1/3) ... [2022-09-20 22:26:37,109 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3112db0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 10:26:37, skipping insertion in model container [2022-09-20 22:26:37,109 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:26:35" (2/3) ... [2022-09-20 22:26:37,109 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3112db0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 10:26:37, skipping insertion in model container [2022-09-20 22:26:37,109 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 10:26:37" (3/3) ... [2022-09-20 22:26:37,111 INFO L112 eAbstractionObserver]: Analyzing ICFG mix029_power.oepc_pso.oepc_rmo.oepc_tso.oepc_tso.opt.i [2022-09-20 22:26:37,128 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-20 22:26:37,128 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-09-20 22:26:37,128 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-20 22:26:37,202 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-09-20 22:26:37,254 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 148 places, 137 transitions, 294 flow [2022-09-20 22:26:37,296 INFO L130 PetriNetUnfolder]: 2/133 cut-off events. [2022-09-20 22:26:37,296 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-09-20 22:26:37,301 INFO L83 FinitePrefix]: Finished finitePrefix Result has 146 conditions, 133 events. 2/133 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 68 event pairs, 0 based on Foata normal form. 0/129 useless extension candidates. Maximal degree in co-relation 92. Up to 2 conditions per place. [2022-09-20 22:26:37,301 INFO L82 GeneralOperation]: Start removeDead. Operand has 148 places, 137 transitions, 294 flow [2022-09-20 22:26:37,305 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 144 places, 133 transitions, 278 flow [2022-09-20 22:26:37,313 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-09-20 22:26:37,318 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;@64e309eb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-20 22:26:37,319 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-09-20 22:26:37,327 INFO L130 PetriNetUnfolder]: 0/51 cut-off events. [2022-09-20 22:26:37,327 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-09-20 22:26:37,327 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 22:26:37,328 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-20 22:26:37,328 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-09-20 22:26:37,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 22:26:37,332 INFO L85 PathProgramCache]: Analyzing trace with hash 1338494467, now seen corresponding path program 1 times [2022-09-20 22:26:37,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 22:26:37,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425190651] [2022-09-20 22:26:37,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 22:26:37,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 22:26:37,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 22:26:37,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 22:26:37,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 22:26:37,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425190651] [2022-09-20 22:26:37,623 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425190651] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 22:26:37,623 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 22:26:37,623 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-09-20 22:26:37,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909482208] [2022-09-20 22:26:37,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 22:26:37,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-20 22:26:37,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 22:26:37,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-20 22:26:37,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-20 22:26:37,670 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 137 [2022-09-20 22:26:37,680 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 133 transitions, 278 flow. Second operand has 3 states, 3 states have (on average 122.0) internal successors, (366), 3 states have internal predecessors, (366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 22:26:37,680 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 22:26:37,680 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 137 [2022-09-20 22:26:37,681 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 22:26:37,986 INFO L130 PetriNetUnfolder]: 162/620 cut-off events. [2022-09-20 22:26:37,986 INFO L131 PetriNetUnfolder]: For 22/22 co-relation queries the response was YES. [2022-09-20 22:26:37,991 INFO L83 FinitePrefix]: Finished finitePrefix Result has 926 conditions, 620 events. 162/620 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 3385 event pairs, 132 based on Foata normal form. 41/619 useless extension candidates. Maximal degree in co-relation 869. Up to 191 conditions per place. [2022-09-20 22:26:37,996 INFO L137 encePairwiseOnDemand]: 132/137 looper letters, 18 selfloop transitions, 2 changer transitions 0/137 dead transitions. [2022-09-20 22:26:37,996 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 137 transitions, 335 flow [2022-09-20 22:26:37,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-20 22:26:38,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-09-20 22:26:38,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 388 transitions. [2022-09-20 22:26:38,014 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9440389294403893 [2022-09-20 22:26:38,015 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 388 transitions. [2022-09-20 22:26:38,015 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 388 transitions. [2022-09-20 22:26:38,017 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 22:26:38,019 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 388 transitions. [2022-09-20 22:26:38,024 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 129.33333333333334) internal successors, (388), 3 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 22:26:38,029 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 137.0) internal successors, (548), 4 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 22:26:38,029 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 137.0) internal successors, (548), 4 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 22:26:38,032 INFO L175 Difference]: Start difference. First operand has 144 places, 133 transitions, 278 flow. Second operand 3 states and 388 transitions. [2022-09-20 22:26:38,032 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 137 transitions, 335 flow [2022-09-20 22:26:38,035 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 137 transitions, 328 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-09-20 22:26:38,038 INFO L231 Difference]: Finished difference. Result has 140 places, 129 transitions, 270 flow [2022-09-20 22:26:38,040 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=266, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=270, PETRI_PLACES=140, PETRI_TRANSITIONS=129} [2022-09-20 22:26:38,046 INFO L287 CegarLoopForPetriNet]: 144 programPoint places, -4 predicate places. [2022-09-20 22:26:38,046 INFO L495 AbstractCegarLoop]: Abstraction has has 140 places, 129 transitions, 270 flow [2022-09-20 22:26:38,047 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 122.0) internal successors, (366), 3 states have internal predecessors, (366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 22:26:38,047 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 22:26:38,047 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-20 22:26:38,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-20 22:26:38,048 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-09-20 22:26:38,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 22:26:38,049 INFO L85 PathProgramCache]: Analyzing trace with hash 1196194587, now seen corresponding path program 1 times [2022-09-20 22:26:38,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 22:26:38,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953217811] [2022-09-20 22:26:38,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 22:26:38,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 22:26:38,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 22:26:38,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 22:26:38,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 22:26:38,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953217811] [2022-09-20 22:26:38,338 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953217811] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 22:26:38,338 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 22:26:38,338 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-09-20 22:26:38,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660105702] [2022-09-20 22:26:38,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 22:26:38,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-09-20 22:26:38,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 22:26:38,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-09-20 22:26:38,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-09-20 22:26:38,343 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 137 [2022-09-20 22:26:38,345 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 129 transitions, 270 flow. Second operand has 7 states, 7 states have (on average 106.28571428571429) internal successors, (744), 7 states have internal predecessors, (744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 22:26:38,345 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 22:26:38,346 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 137 [2022-09-20 22:26:38,348 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 22:26:43,312 INFO L130 PetriNetUnfolder]: 14219/30878 cut-off events. [2022-09-20 22:26:43,313 INFO L131 PetriNetUnfolder]: For 1254/1254 co-relation queries the response was YES. [2022-09-20 22:26:43,480 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51791 conditions, 30878 events. 14219/30878 cut-off events. For 1254/1254 co-relation queries the response was YES. Maximal size of possible extension queue 1301. Compared 323825 event pairs, 1088 based on Foata normal form. 0/30311 useless extension candidates. Maximal degree in co-relation 51731. Up to 6589 conditions per place. [2022-09-20 22:26:43,589 INFO L137 encePairwiseOnDemand]: 123/137 looper letters, 47 selfloop transitions, 12 changer transitions 128/274 dead transitions. [2022-09-20 22:26:43,589 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 274 transitions, 938 flow [2022-09-20 22:26:43,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-09-20 22:26:43,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-09-20 22:26:43,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1529 transitions. [2022-09-20 22:26:43,593 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.858506457046603 [2022-09-20 22:26:43,593 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1529 transitions. [2022-09-20 22:26:43,593 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1529 transitions. [2022-09-20 22:26:43,594 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 22:26:43,594 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1529 transitions. [2022-09-20 22:26:43,598 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 117.61538461538461) internal successors, (1529), 13 states have internal predecessors, (1529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 22:26:43,603 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 137.0) internal successors, (1918), 14 states have internal predecessors, (1918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 22:26:43,604 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 137.0) internal successors, (1918), 14 states have internal predecessors, (1918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 22:26:43,605 INFO L175 Difference]: Start difference. First operand has 140 places, 129 transitions, 270 flow. Second operand 13 states and 1529 transitions. [2022-09-20 22:26:43,605 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 274 transitions, 938 flow [2022-09-20 22:26:43,609 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 274 transitions, 912 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-09-20 22:26:43,613 INFO L231 Difference]: Finished difference. Result has 162 places, 124 transitions, 370 flow [2022-09-20 22:26:43,613 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=266, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=370, PETRI_PLACES=162, PETRI_TRANSITIONS=124} [2022-09-20 22:26:43,614 INFO L287 CegarLoopForPetriNet]: 144 programPoint places, 18 predicate places. [2022-09-20 22:26:43,614 INFO L495 AbstractCegarLoop]: Abstraction has has 162 places, 124 transitions, 370 flow [2022-09-20 22:26:43,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 106.28571428571429) internal successors, (744), 7 states have internal predecessors, (744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 22:26:43,615 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 22:26:43,615 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-20 22:26:43,615 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-09-20 22:26:43,615 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-09-20 22:26:43,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 22:26:43,617 INFO L85 PathProgramCache]: Analyzing trace with hash -1956527302, now seen corresponding path program 1 times [2022-09-20 22:26:43,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 22:26:43,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335871083] [2022-09-20 22:26:43,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 22:26:43,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 22:26:43,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 22:26:43,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 22:26:43,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 22:26:43,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335871083] [2022-09-20 22:26:43,852 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1335871083] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 22:26:43,852 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 22:26:43,852 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-09-20 22:26:43,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744914266] [2022-09-20 22:26:43,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 22:26:43,853 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-09-20 22:26:43,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 22:26:43,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-09-20 22:26:43,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-09-20 22:26:43,854 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 137 [2022-09-20 22:26:43,855 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 124 transitions, 370 flow. Second operand has 7 states, 7 states have (on average 106.42857142857143) internal successors, (745), 7 states have internal predecessors, (745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 22:26:43,855 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 22:26:43,856 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 137 [2022-09-20 22:26:43,856 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 22:26:46,574 INFO L130 PetriNetUnfolder]: 9086/15497 cut-off events. [2022-09-20 22:26:46,575 INFO L131 PetriNetUnfolder]: For 23626/23626 co-relation queries the response was YES. [2022-09-20 22:26:46,669 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45631 conditions, 15497 events. 9086/15497 cut-off events. For 23626/23626 co-relation queries the response was YES. Maximal size of possible extension queue 808. Compared 120571 event pairs, 1313 based on Foata normal form. 364/15654 useless extension candidates. Maximal degree in co-relation 45555. Up to 3573 conditions per place. [2022-09-20 22:26:46,736 INFO L137 encePairwiseOnDemand]: 126/137 looper letters, 53 selfloop transitions, 9 changer transitions 112/261 dead transitions. [2022-09-20 22:26:46,736 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 261 transitions, 1394 flow [2022-09-20 22:26:46,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-09-20 22:26:46,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-09-20 22:26:46,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1504 transitions. [2022-09-20 22:26:46,740 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8444693992139247 [2022-09-20 22:26:46,740 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1504 transitions. [2022-09-20 22:26:46,740 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1504 transitions. [2022-09-20 22:26:46,741 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 22:26:46,741 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1504 transitions. [2022-09-20 22:26:46,745 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 115.6923076923077) internal successors, (1504), 13 states have internal predecessors, (1504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 22:26:46,749 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 137.0) internal successors, (1918), 14 states have internal predecessors, (1918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 22:26:46,750 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 137.0) internal successors, (1918), 14 states have internal predecessors, (1918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 22:26:46,750 INFO L175 Difference]: Start difference. First operand has 162 places, 124 transitions, 370 flow. Second operand 13 states and 1504 transitions. [2022-09-20 22:26:46,750 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 261 transitions, 1394 flow [2022-09-20 22:26:46,879 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 261 transitions, 1370 flow, removed 12 selfloop flow, removed 3 redundant places. [2022-09-20 22:26:46,882 INFO L231 Difference]: Finished difference. Result has 160 places, 129 transitions, 478 flow [2022-09-20 22:26:46,882 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=364, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=478, PETRI_PLACES=160, PETRI_TRANSITIONS=129} [2022-09-20 22:26:46,887 INFO L287 CegarLoopForPetriNet]: 144 programPoint places, 16 predicate places. [2022-09-20 22:26:46,888 INFO L495 AbstractCegarLoop]: Abstraction has has 160 places, 129 transitions, 478 flow [2022-09-20 22:26:46,888 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 106.42857142857143) internal successors, (745), 7 states have internal predecessors, (745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 22:26:46,888 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 22:26:46,889 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-20 22:26:46,889 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-09-20 22:26:46,889 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-09-20 22:26:46,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 22:26:46,890 INFO L85 PathProgramCache]: Analyzing trace with hash 2186222, now seen corresponding path program 1 times [2022-09-20 22:26:46,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 22:26:46,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667850574] [2022-09-20 22:26:46,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 22:26:46,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 22:26:46,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 22:26:47,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 22:26:47,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 22:26:47,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667850574] [2022-09-20 22:26:47,007 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667850574] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 22:26:47,007 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 22:26:47,007 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-09-20 22:26:47,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65589365] [2022-09-20 22:26:47,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 22:26:47,008 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-20 22:26:47,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 22:26:47,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-20 22:26:47,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-09-20 22:26:47,009 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 137 [2022-09-20 22:26:47,010 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 129 transitions, 478 flow. Second operand has 6 states, 6 states have (on average 112.0) internal successors, (672), 6 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 22:26:47,010 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 22:26:47,010 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 137 [2022-09-20 22:26:47,010 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 22:26:51,934 INFO L130 PetriNetUnfolder]: 18529/32784 cut-off events. [2022-09-20 22:26:51,935 INFO L131 PetriNetUnfolder]: For 43789/67204 co-relation queries the response was YES. [2022-09-20 22:26:52,246 INFO L83 FinitePrefix]: Finished finitePrefix Result has 77132 conditions, 32784 events. 18529/32784 cut-off events. For 43789/67204 co-relation queries the response was YES. Maximal size of possible extension queue 2103. Compared 301411 event pairs, 1337 based on Foata normal form. 300/30936 useless extension candidates. Maximal degree in co-relation 77049. Up to 10239 conditions per place. [2022-09-20 22:26:52,413 INFO L137 encePairwiseOnDemand]: 126/137 looper letters, 93 selfloop transitions, 20 changer transitions 0/218 dead transitions. [2022-09-20 22:26:52,414 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 218 transitions, 1000 flow [2022-09-20 22:26:52,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-09-20 22:26:52,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-09-20 22:26:52,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1207 transitions. [2022-09-20 22:26:52,417 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.881021897810219 [2022-09-20 22:26:52,417 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1207 transitions. [2022-09-20 22:26:52,417 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1207 transitions. [2022-09-20 22:26:52,418 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 22:26:52,418 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1207 transitions. [2022-09-20 22:26:52,420 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 120.7) internal successors, (1207), 10 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 22:26:52,423 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 137.0) internal successors, (1507), 11 states have internal predecessors, (1507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 22:26:52,423 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 137.0) internal successors, (1507), 11 states have internal predecessors, (1507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 22:26:52,423 INFO L175 Difference]: Start difference. First operand has 160 places, 129 transitions, 478 flow. Second operand 10 states and 1207 transitions. [2022-09-20 22:26:52,423 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 218 transitions, 1000 flow [2022-09-20 22:26:52,550 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 218 transitions, 979 flow, removed 9 selfloop flow, removed 4 redundant places. [2022-09-20 22:26:52,553 INFO L231 Difference]: Finished difference. Result has 162 places, 147 transitions, 600 flow [2022-09-20 22:26:52,554 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=457, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=600, PETRI_PLACES=162, PETRI_TRANSITIONS=147} [2022-09-20 22:26:52,556 INFO L287 CegarLoopForPetriNet]: 144 programPoint places, 18 predicate places. [2022-09-20 22:26:52,559 INFO L495 AbstractCegarLoop]: Abstraction has has 162 places, 147 transitions, 600 flow [2022-09-20 22:26:52,561 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 112.0) internal successors, (672), 6 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 22:26:52,561 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 22:26:52,561 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-20 22:26:52,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-09-20 22:26:52,562 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-09-20 22:26:52,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 22:26:52,562 INFO L85 PathProgramCache]: Analyzing trace with hash -87162010, now seen corresponding path program 1 times [2022-09-20 22:26:52,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 22:26:52,563 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678242611] [2022-09-20 22:26:52,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 22:26:52,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 22:26:52,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 22:26:52,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 22:26:52,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 22:26:52,712 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678242611] [2022-09-20 22:26:52,712 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678242611] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 22:26:52,712 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 22:26:52,712 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-09-20 22:26:52,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115494586] [2022-09-20 22:26:52,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 22:26:52,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-09-20 22:26:52,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 22:26:52,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-09-20 22:26:52,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-09-20 22:26:52,715 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 137 [2022-09-20 22:26:52,716 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 147 transitions, 600 flow. Second operand has 7 states, 7 states have (on average 106.85714285714286) internal successors, (748), 7 states have internal predecessors, (748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 22:26:52,716 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 22:26:52,716 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 137 [2022-09-20 22:26:52,716 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 22:26:57,008 INFO L130 PetriNetUnfolder]: 10191/24696 cut-off events. [2022-09-20 22:26:57,008 INFO L131 PetriNetUnfolder]: For 37522/41321 co-relation queries the response was YES. [2022-09-20 22:26:57,330 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70254 conditions, 24696 events. 10191/24696 cut-off events. For 37522/41321 co-relation queries the response was YES. Maximal size of possible extension queue 1559. Compared 285049 event pairs, 2109 based on Foata normal form. 601/23901 useless extension candidates. Maximal degree in co-relation 70162. Up to 4026 conditions per place. [2022-09-20 22:26:57,623 INFO L137 encePairwiseOnDemand]: 123/137 looper letters, 129 selfloop transitions, 41 changer transitions 0/275 dead transitions. [2022-09-20 22:26:57,624 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 275 transitions, 1626 flow [2022-09-20 22:26:57,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-09-20 22:26:57,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-09-20 22:26:57,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1502 transitions. [2022-09-20 22:26:57,628 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8433464345873105 [2022-09-20 22:26:57,628 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1502 transitions. [2022-09-20 22:26:57,628 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1502 transitions. [2022-09-20 22:26:57,629 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 22:26:57,629 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1502 transitions. [2022-09-20 22:26:57,632 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 115.53846153846153) internal successors, (1502), 13 states have internal predecessors, (1502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 22:26:57,636 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 137.0) internal successors, (1918), 14 states have internal predecessors, (1918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 22:26:57,636 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 137.0) internal successors, (1918), 14 states have internal predecessors, (1918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 22:26:57,636 INFO L175 Difference]: Start difference. First operand has 162 places, 147 transitions, 600 flow. Second operand 13 states and 1502 transitions. [2022-09-20 22:26:57,636 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 275 transitions, 1626 flow [2022-09-20 22:26:57,877 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 275 transitions, 1594 flow, removed 15 selfloop flow, removed 7 redundant places. [2022-09-20 22:26:57,881 INFO L231 Difference]: Finished difference. Result has 179 places, 177 transitions, 1043 flow [2022-09-20 22:26:57,881 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=580, PETRI_DIFFERENCE_MINUEND_PLACES=155, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1043, PETRI_PLACES=179, PETRI_TRANSITIONS=177} [2022-09-20 22:26:57,882 INFO L287 CegarLoopForPetriNet]: 144 programPoint places, 35 predicate places. [2022-09-20 22:26:57,882 INFO L495 AbstractCegarLoop]: Abstraction has has 179 places, 177 transitions, 1043 flow [2022-09-20 22:26:57,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 106.85714285714286) internal successors, (748), 7 states have internal predecessors, (748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 22:26:57,883 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 22:26:57,883 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-20 22:26:57,883 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-09-20 22:26:57,883 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-09-20 22:26:57,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 22:26:57,883 INFO L85 PathProgramCache]: Analyzing trace with hash -531818247, now seen corresponding path program 1 times [2022-09-20 22:26:57,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 22:26:57,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747069174] [2022-09-20 22:26:57,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 22:26:57,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 22:26:57,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 22:26:58,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 22:26:58,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 22:26:58,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747069174] [2022-09-20 22:26:58,020 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747069174] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 22:26:58,020 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 22:26:58,020 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-09-20 22:26:58,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043944833] [2022-09-20 22:26:58,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 22:26:58,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-09-20 22:26:58,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 22:26:58,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-09-20 22:26:58,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-09-20 22:26:58,023 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 137 [2022-09-20 22:26:58,025 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 177 transitions, 1043 flow. Second operand has 7 states, 7 states have (on average 107.0) internal successors, (749), 7 states have internal predecessors, (749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 22:26:58,025 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 22:26:58,025 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 137 [2022-09-20 22:26:58,025 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 22:27:04,546 INFO L130 PetriNetUnfolder]: 15096/36341 cut-off events. [2022-09-20 22:27:04,546 INFO L131 PetriNetUnfolder]: For 105884/112749 co-relation queries the response was YES. [2022-09-20 22:27:05,169 INFO L83 FinitePrefix]: Finished finitePrefix Result has 116110 conditions, 36341 events. 15096/36341 cut-off events. For 105884/112749 co-relation queries the response was YES. Maximal size of possible extension queue 2237. Compared 444426 event pairs, 3531 based on Foata normal form. 598/34721 useless extension candidates. Maximal degree in co-relation 116007. Up to 7099 conditions per place. [2022-09-20 22:27:05,348 INFO L137 encePairwiseOnDemand]: 123/137 looper letters, 114 selfloop transitions, 34 changer transitions 0/253 dead transitions. [2022-09-20 22:27:05,348 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 185 places, 253 transitions, 1947 flow [2022-09-20 22:27:05,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-09-20 22:27:05,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-09-20 22:27:05,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 821 transitions. [2022-09-20 22:27:05,351 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8561001042752867 [2022-09-20 22:27:05,351 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 821 transitions. [2022-09-20 22:27:05,351 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 821 transitions. [2022-09-20 22:27:05,351 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 22:27:05,352 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 821 transitions. [2022-09-20 22:27:05,353 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 117.28571428571429) internal successors, (821), 7 states have internal predecessors, (821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 22:27:05,355 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 137.0) internal successors, (1096), 8 states have internal predecessors, (1096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 22:27:05,356 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 137.0) internal successors, (1096), 8 states have internal predecessors, (1096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 22:27:05,356 INFO L175 Difference]: Start difference. First operand has 179 places, 177 transitions, 1043 flow. Second operand 7 states and 821 transitions. [2022-09-20 22:27:05,356 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 185 places, 253 transitions, 1947 flow [2022-09-20 22:27:06,350 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 185 places, 253 transitions, 1913 flow, removed 17 selfloop flow, removed 0 redundant places. [2022-09-20 22:27:06,354 INFO L231 Difference]: Finished difference. Result has 191 places, 191 transitions, 1350 flow [2022-09-20 22:27:06,354 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=1023, PETRI_DIFFERENCE_MINUEND_PLACES=179, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=177, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1350, PETRI_PLACES=191, PETRI_TRANSITIONS=191} [2022-09-20 22:27:06,355 INFO L287 CegarLoopForPetriNet]: 144 programPoint places, 47 predicate places. [2022-09-20 22:27:06,355 INFO L495 AbstractCegarLoop]: Abstraction has has 191 places, 191 transitions, 1350 flow [2022-09-20 22:27:06,355 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 107.0) internal successors, (749), 7 states have internal predecessors, (749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 22:27:06,355 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 22:27:06,355 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-20 22:27:06,356 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-09-20 22:27:06,356 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-09-20 22:27:06,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 22:27:06,356 INFO L85 PathProgramCache]: Analyzing trace with hash -1895600269, now seen corresponding path program 2 times [2022-09-20 22:27:06,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 22:27:06,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607249060] [2022-09-20 22:27:06,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 22:27:06,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 22:27:06,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 22:27:06,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 22:27:06,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 22:27:06,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607249060] [2022-09-20 22:27:06,507 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607249060] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 22:27:06,508 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 22:27:06,508 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-09-20 22:27:06,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548273325] [2022-09-20 22:27:06,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 22:27:06,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-09-20 22:27:06,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 22:27:06,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-09-20 22:27:06,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-09-20 22:27:06,513 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 137 [2022-09-20 22:27:06,514 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 191 places, 191 transitions, 1350 flow. Second operand has 7 states, 7 states have (on average 112.0) internal successors, (784), 7 states have internal predecessors, (784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 22:27:06,514 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 22:27:06,514 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 137 [2022-09-20 22:27:06,514 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 22:27:21,531 INFO L130 PetriNetUnfolder]: 43116/76642 cut-off events. [2022-09-20 22:27:21,531 INFO L131 PetriNetUnfolder]: For 250981/302531 co-relation queries the response was YES. [2022-09-20 22:27:22,749 INFO L83 FinitePrefix]: Finished finitePrefix Result has 249294 conditions, 76642 events. 43116/76642 cut-off events. For 250981/302531 co-relation queries the response was YES. Maximal size of possible extension queue 4796. Compared 800380 event pairs, 1583 based on Foata normal form. 1913/75851 useless extension candidates. Maximal degree in co-relation 249183. Up to 16235 conditions per place. [2022-09-20 22:27:22,901 INFO L137 encePairwiseOnDemand]: 126/137 looper letters, 122 selfloop transitions, 38 changer transitions 33/328 dead transitions. [2022-09-20 22:27:22,901 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 203 places, 328 transitions, 2778 flow [2022-09-20 22:27:22,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-09-20 22:27:22,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-09-20 22:27:22,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1574 transitions. [2022-09-20 22:27:22,905 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8837731611454239 [2022-09-20 22:27:22,905 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1574 transitions. [2022-09-20 22:27:22,905 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1574 transitions. [2022-09-20 22:27:22,906 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 22:27:22,906 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1574 transitions. [2022-09-20 22:27:22,909 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 121.07692307692308) internal successors, (1574), 13 states have internal predecessors, (1574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 22:27:22,912 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 137.0) internal successors, (1918), 14 states have internal predecessors, (1918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 22:27:22,912 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 137.0) internal successors, (1918), 14 states have internal predecessors, (1918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 22:27:22,912 INFO L175 Difference]: Start difference. First operand has 191 places, 191 transitions, 1350 flow. Second operand 13 states and 1574 transitions. [2022-09-20 22:27:22,913 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 203 places, 328 transitions, 2778 flow [2022-09-20 22:27:27,240 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 203 places, 328 transitions, 2766 flow, removed 6 selfloop flow, removed 0 redundant places. [2022-09-20 22:27:27,244 INFO L231 Difference]: Finished difference. Result has 209 places, 198 transitions, 1453 flow [2022-09-20 22:27:27,244 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=1338, PETRI_DIFFERENCE_MINUEND_PLACES=191, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=191, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=165, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1453, PETRI_PLACES=209, PETRI_TRANSITIONS=198} [2022-09-20 22:27:27,245 INFO L287 CegarLoopForPetriNet]: 144 programPoint places, 65 predicate places. [2022-09-20 22:27:27,245 INFO L495 AbstractCegarLoop]: Abstraction has has 209 places, 198 transitions, 1453 flow [2022-09-20 22:27:27,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 112.0) internal successors, (784), 7 states have internal predecessors, (784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 22:27:27,246 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 22:27:27,246 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-20 22:27:27,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-09-20 22:27:27,246 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-09-20 22:27:27,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 22:27:27,246 INFO L85 PathProgramCache]: Analyzing trace with hash -1871203270, now seen corresponding path program 1 times [2022-09-20 22:27:27,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 22:27:27,247 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012829559] [2022-09-20 22:27:27,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 22:27:27,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 22:27:27,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 22:27:27,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 22:27:27,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 22:27:27,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012829559] [2022-09-20 22:27:27,405 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2012829559] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 22:27:27,406 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 22:27:27,406 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-09-20 22:27:27,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726102317] [2022-09-20 22:27:27,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 22:27:27,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-09-20 22:27:27,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 22:27:27,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-09-20 22:27:27,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-09-20 22:27:27,408 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 137 [2022-09-20 22:27:27,409 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 209 places, 198 transitions, 1453 flow. Second operand has 8 states, 8 states have (on average 112.125) internal successors, (897), 8 states have internal predecessors, (897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 22:27:27,409 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 22:27:27,409 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 137 [2022-09-20 22:27:27,409 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 22:27:43,531 INFO L130 PetriNetUnfolder]: 41593/73887 cut-off events. [2022-09-20 22:27:43,531 INFO L131 PetriNetUnfolder]: For 322740/363092 co-relation queries the response was YES. [2022-09-20 22:27:45,030 INFO L83 FinitePrefix]: Finished finitePrefix Result has 284955 conditions, 73887 events. 41593/73887 cut-off events. For 322740/363092 co-relation queries the response was YES. Maximal size of possible extension queue 4824. Compared 776614 event pairs, 1879 based on Foata normal form. 1276/72418 useless extension candidates. Maximal degree in co-relation 284835. Up to 15646 conditions per place. [2022-09-20 22:27:45,262 INFO L137 encePairwiseOnDemand]: 126/137 looper letters, 117 selfloop transitions, 58 changer transitions 59/356 dead transitions. [2022-09-20 22:27:45,262 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 221 places, 356 transitions, 3153 flow [2022-09-20 22:27:45,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-09-20 22:27:45,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-09-20 22:27:45,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1940 transitions. [2022-09-20 22:27:45,266 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.885036496350365 [2022-09-20 22:27:45,266 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1940 transitions. [2022-09-20 22:27:45,267 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1940 transitions. [2022-09-20 22:27:45,267 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 22:27:45,267 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1940 transitions. [2022-09-20 22:27:45,271 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 121.25) internal successors, (1940), 16 states have internal predecessors, (1940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 22:27:45,274 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 137.0) internal successors, (2329), 17 states have internal predecessors, (2329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 22:27:45,275 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 137.0) internal successors, (2329), 17 states have internal predecessors, (2329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 22:27:45,275 INFO L175 Difference]: Start difference. First operand has 209 places, 198 transitions, 1453 flow. Second operand 16 states and 1940 transitions. [2022-09-20 22:27:45,275 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 221 places, 356 transitions, 3153 flow [2022-09-20 22:28:29,755 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 212 places, 356 transitions, 2964 flow, removed 53 selfloop flow, removed 9 redundant places. [2022-09-20 22:28:29,760 INFO L231 Difference]: Finished difference. Result has 216 places, 210 transitions, 1619 flow [2022-09-20 22:28:29,761 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=1298, PETRI_DIFFERENCE_MINUEND_PLACES=197, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=198, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=42, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=154, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=1619, PETRI_PLACES=216, PETRI_TRANSITIONS=210} [2022-09-20 22:28:29,762 INFO L287 CegarLoopForPetriNet]: 144 programPoint places, 72 predicate places. [2022-09-20 22:28:29,762 INFO L495 AbstractCegarLoop]: Abstraction has has 216 places, 210 transitions, 1619 flow [2022-09-20 22:28:29,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 112.125) internal successors, (897), 8 states have internal predecessors, (897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 22:28:29,763 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 22:28:29,763 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-20 22:28:29,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-09-20 22:28:29,763 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-09-20 22:28:29,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 22:28:29,764 INFO L85 PathProgramCache]: Analyzing trace with hash 400560255, now seen corresponding path program 1 times [2022-09-20 22:28:29,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 22:28:29,764 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396030697] [2022-09-20 22:28:29,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 22:28:29,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 22:28:29,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 22:28:29,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 22:28:29,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 22:28:29,945 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396030697] [2022-09-20 22:28:29,945 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396030697] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 22:28:29,945 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 22:28:29,945 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-09-20 22:28:29,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491321188] [2022-09-20 22:28:29,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 22:28:29,946 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-09-20 22:28:29,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 22:28:29,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-09-20 22:28:29,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-09-20 22:28:29,947 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 137 [2022-09-20 22:28:29,948 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 216 places, 210 transitions, 1619 flow. Second operand has 8 states, 8 states have (on average 112.625) internal successors, (901), 8 states have internal predecessors, (901), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 22:28:29,948 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 22:28:29,948 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 137 [2022-09-20 22:28:29,948 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 22:28:35,590 INFO L130 PetriNetUnfolder]: 12769/41513 cut-off events. [2022-09-20 22:28:35,590 INFO L131 PetriNetUnfolder]: For 202284/209308 co-relation queries the response was YES. [2022-09-20 22:28:36,699 INFO L83 FinitePrefix]: Finished finitePrefix Result has 158718 conditions, 41513 events. 12769/41513 cut-off events. For 202284/209308 co-relation queries the response was YES. Maximal size of possible extension queue 5077. Compared 653470 event pairs, 261 based on Foata normal form. 56/39279 useless extension candidates. Maximal degree in co-relation 158595. Up to 9750 conditions per place. [2022-09-20 22:28:36,964 INFO L137 encePairwiseOnDemand]: 126/137 looper letters, 42 selfloop transitions, 17 changer transitions 14/260 dead transitions. [2022-09-20 22:28:36,964 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 215 places, 260 transitions, 2019 flow [2022-09-20 22:28:36,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-09-20 22:28:36,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-09-20 22:28:36,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1061 transitions. [2022-09-20 22:28:36,966 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8605028386050284 [2022-09-20 22:28:36,966 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1061 transitions. [2022-09-20 22:28:36,967 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1061 transitions. [2022-09-20 22:28:36,967 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 22:28:36,967 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1061 transitions. [2022-09-20 22:28:36,969 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 117.88888888888889) internal successors, (1061), 9 states have internal predecessors, (1061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 22:28:36,971 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 137.0) internal successors, (1370), 10 states have internal predecessors, (1370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 22:28:36,971 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 137.0) internal successors, (1370), 10 states have internal predecessors, (1370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 22:28:36,972 INFO L175 Difference]: Start difference. First operand has 216 places, 210 transitions, 1619 flow. Second operand 9 states and 1061 transitions. [2022-09-20 22:28:36,972 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 215 places, 260 transitions, 2019 flow