/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/mix057_power.oepc_pso.oepc_rmo.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-?-3902331-m [2022-09-20 22:30:00,178 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-20 22:30:00,180 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-20 22:30:00,211 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-20 22:30:00,211 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-20 22:30:00,214 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-20 22:30:00,219 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-20 22:30:00,227 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-20 22:30:00,229 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-20 22:30:00,234 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-20 22:30:00,235 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-20 22:30:00,236 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-20 22:30:00,236 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-20 22:30:00,236 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-20 22:30:00,237 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-20 22:30:00,238 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-20 22:30:00,238 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-20 22:30:00,239 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-20 22:30:00,240 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-20 22:30:00,242 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-20 22:30:00,243 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-20 22:30:00,244 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-20 22:30:00,244 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-20 22:30:00,245 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-20 22:30:00,254 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-09-20 22:30:00,257 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-09-20 22:30:00,257 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-09-20 22:30:00,257 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-09-20 22:30:00,258 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-09-20 22:30:00,258 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-09-20 22:30:00,259 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-09-20 22:30:00,259 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-09-20 22:30:00,259 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-09-20 22:30:00,259 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-20 22:30:00,260 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-20 22:30:00,261 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-20 22:30:00,263 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 22:30:00,294 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-20 22:30:00,294 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-20 22:30:00,295 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-20 22:30:00,296 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-20 22:30:00,296 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-20 22:30:00,296 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-20 22:30:00,296 INFO L138 SettingsManager]: * Use SBE=true [2022-09-20 22:30:00,297 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-20 22:30:00,297 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-20 22:30:00,297 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-20 22:30:00,298 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-20 22:30:00,298 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-20 22:30:00,298 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-20 22:30:00,298 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-20 22:30:00,298 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-20 22:30:00,298 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-20 22:30:00,298 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-20 22:30:00,298 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-20 22:30:00,299 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-20 22:30:00,299 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-20 22:30:00,299 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-20 22:30:00,299 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-20 22:30:00,299 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-20 22:30:00,299 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-20 22:30:00,299 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-20 22:30:00,299 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-20 22:30:00,300 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-20 22:30:00,300 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-20 22:30:00,300 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-20 22:30:00,300 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-20 22:30:00,300 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-09-20 22:30:00,300 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-09-20 22:30:00,510 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-20 22:30:00,530 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-20 22:30:00,533 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-20 22:30:00,533 INFO L271 PluginConnector]: Initializing CDTParser... [2022-09-20 22:30:00,536 INFO L275 PluginConnector]: CDTParser initialized [2022-09-20 22:30:00,537 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix057_power.oepc_pso.oepc_rmo.oepc.i [2022-09-20 22:30:00,615 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b4f2237b/45cb48fa169649599c642a0568272e56/FLAG4a835cd7d [2022-09-20 22:30:01,050 INFO L306 CDTParser]: Found 1 translation units. [2022-09-20 22:30:01,050 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix057_power.oepc_pso.oepc_rmo.oepc.i [2022-09-20 22:30:01,069 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b4f2237b/45cb48fa169649599c642a0568272e56/FLAG4a835cd7d [2022-09-20 22:30:01,565 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b4f2237b/45cb48fa169649599c642a0568272e56 [2022-09-20 22:30:01,567 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-20 22:30:01,568 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-09-20 22:30:01,569 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-09-20 22:30:01,570 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-09-20 22:30:01,572 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-09-20 22:30:01,573 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 10:30:01" (1/1) ... [2022-09-20 22:30:01,574 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9e3bf5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:30:01, skipping insertion in model container [2022-09-20 22:30:01,574 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 10:30:01" (1/1) ... [2022-09-20 22:30:01,581 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-09-20 22:30:01,632 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-09-20 22:30:01,782 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/mix057_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2022-09-20 22:30:01,931 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-20 22:30:01,938 INFO L203 MainTranslator]: Completed pre-run [2022-09-20 22:30:01,949 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/mix057_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2022-09-20 22:30:01,989 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-20 22:30:02,025 INFO L208 MainTranslator]: Completed translation [2022-09-20 22:30:02,026 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:30:02 WrapperNode [2022-09-20 22:30:02,026 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-09-20 22:30:02,027 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-20 22:30:02,027 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-20 22:30:02,027 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-20 22:30:02,035 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:30:02" (1/1) ... [2022-09-20 22:30:02,051 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:30:02" (1/1) ... [2022-09-20 22:30:02,075 INFO L138 Inliner]: procedures = 177, calls = 67, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 190 [2022-09-20 22:30:02,076 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-20 22:30:02,077 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-20 22:30:02,077 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-20 22:30:02,077 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-20 22:30:02,090 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:30:02" (1/1) ... [2022-09-20 22:30:02,090 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:30:02" (1/1) ... [2022-09-20 22:30:02,102 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:30:02" (1/1) ... [2022-09-20 22:30:02,103 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:30:02" (1/1) ... [2022-09-20 22:30:02,113 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:30:02" (1/1) ... [2022-09-20 22:30:02,137 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:30:02" (1/1) ... [2022-09-20 22:30:02,140 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:30:02" (1/1) ... [2022-09-20 22:30:02,144 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-20 22:30:02,145 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-20 22:30:02,145 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-20 22:30:02,145 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-20 22:30:02,152 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:30:02" (1/1) ... [2022-09-20 22:30:02,158 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-20 22:30:02,171 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-20 22:30:02,183 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 22:30:02,195 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 22:30:02,224 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-09-20 22:30:02,225 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-09-20 22:30:02,225 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-09-20 22:30:02,225 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-09-20 22:30:02,225 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-09-20 22:30:02,225 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-09-20 22:30:02,225 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-09-20 22:30:02,225 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-09-20 22:30:02,226 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-09-20 22:30:02,226 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-09-20 22:30:02,226 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-09-20 22:30:02,227 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-09-20 22:30:02,227 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-09-20 22:30:02,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-09-20 22:30:02,227 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-09-20 22:30:02,227 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-20 22:30:02,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-20 22:30:02,230 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 22:30:02,409 INFO L234 CfgBuilder]: Building ICFG [2022-09-20 22:30:02,411 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-20 22:30:02,947 INFO L275 CfgBuilder]: Performing block encoding [2022-09-20 22:30:03,262 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-20 22:30:03,263 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-09-20 22:30:03,265 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 10:30:03 BoogieIcfgContainer [2022-09-20 22:30:03,265 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-20 22:30:03,267 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-20 22:30:03,267 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-20 22:30:03,270 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-20 22:30:03,270 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 10:30:01" (1/3) ... [2022-09-20 22:30:03,271 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24166649 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 10:30:03, skipping insertion in model container [2022-09-20 22:30:03,271 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:30:02" (2/3) ... [2022-09-20 22:30:03,271 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24166649 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 10:30:03, skipping insertion in model container [2022-09-20 22:30:03,271 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 10:30:03" (3/3) ... [2022-09-20 22:30:03,272 INFO L112 eAbstractionObserver]: Analyzing ICFG mix057_power.oepc_pso.oepc_rmo.oepc.i [2022-09-20 22:30:03,288 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-20 22:30:03,289 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-09-20 22:30:03,289 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-20 22:30:03,354 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-09-20 22:30:03,400 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 145 places, 134 transitions, 288 flow [2022-09-20 22:30:03,462 INFO L130 PetriNetUnfolder]: 2/130 cut-off events. [2022-09-20 22:30:03,462 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-09-20 22:30:03,467 INFO L83 FinitePrefix]: Finished finitePrefix Result has 143 conditions, 130 events. 2/130 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. 0/126 useless extension candidates. Maximal degree in co-relation 91. Up to 2 conditions per place. [2022-09-20 22:30:03,468 INFO L82 GeneralOperation]: Start removeDead. Operand has 145 places, 134 transitions, 288 flow [2022-09-20 22:30:03,476 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 141 places, 130 transitions, 272 flow [2022-09-20 22:30:03,486 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-09-20 22:30:03,493 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;@ae77f38, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-20 22:30:03,493 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-09-20 22:30:03,506 INFO L130 PetriNetUnfolder]: 0/48 cut-off events. [2022-09-20 22:30:03,507 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-09-20 22:30:03,507 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 22:30:03,507 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] [2022-09-20 22:30:03,508 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 22:30:03,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 22:30:03,514 INFO L85 PathProgramCache]: Analyzing trace with hash 1549519353, now seen corresponding path program 1 times [2022-09-20 22:30:03,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 22:30:03,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101159571] [2022-09-20 22:30:03,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 22:30:03,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 22:30:03,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 22:30:03,810 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 22:30:03,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 22:30:03,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101159571] [2022-09-20 22:30:03,811 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [101159571] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 22:30:03,811 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 22:30:03,811 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-09-20 22:30:03,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708186044] [2022-09-20 22:30:03,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 22:30:03,821 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-20 22:30:03,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 22:30:03,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-20 22:30:03,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-20 22:30:03,853 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 134 [2022-09-20 22:30:03,856 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 130 transitions, 272 flow. Second operand has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 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 22:30:03,856 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 22:30:03,856 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 134 [2022-09-20 22:30:03,857 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 22:30:04,083 INFO L130 PetriNetUnfolder]: 162/616 cut-off events. [2022-09-20 22:30:04,083 INFO L131 PetriNetUnfolder]: For 22/22 co-relation queries the response was YES. [2022-09-20 22:30:04,090 INFO L83 FinitePrefix]: Finished finitePrefix Result has 922 conditions, 616 events. 162/616 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 3355 event pairs, 132 based on Foata normal form. 36/608 useless extension candidates. Maximal degree in co-relation 867. Up to 191 conditions per place. [2022-09-20 22:30:04,095 INFO L137 encePairwiseOnDemand]: 129/134 looper letters, 18 selfloop transitions, 2 changer transitions 0/134 dead transitions. [2022-09-20 22:30:04,095 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 134 transitions, 329 flow [2022-09-20 22:30:04,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-20 22:30:04,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-09-20 22:30:04,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 379 transitions. [2022-09-20 22:30:04,145 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9427860696517413 [2022-09-20 22:30:04,146 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 379 transitions. [2022-09-20 22:30:04,147 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 379 transitions. [2022-09-20 22:30:04,150 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 22:30:04,152 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 379 transitions. [2022-09-20 22:30:04,156 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 126.33333333333333) internal successors, (379), 3 states have internal predecessors, (379), 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 22:30:04,164 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 134.0) internal successors, (536), 4 states have internal predecessors, (536), 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 22:30:04,165 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 134.0) internal successors, (536), 4 states have internal predecessors, (536), 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 22:30:04,167 INFO L175 Difference]: Start difference. First operand has 141 places, 130 transitions, 272 flow. Second operand 3 states and 379 transitions. [2022-09-20 22:30:04,168 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 134 transitions, 329 flow [2022-09-20 22:30:04,172 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 134 transitions, 322 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-09-20 22:30:04,176 INFO L231 Difference]: Finished difference. Result has 137 places, 126 transitions, 264 flow [2022-09-20 22:30:04,177 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=260, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=264, PETRI_PLACES=137, PETRI_TRANSITIONS=126} [2022-09-20 22:30:04,181 INFO L287 CegarLoopForPetriNet]: 141 programPoint places, -4 predicate places. [2022-09-20 22:30:04,181 INFO L495 AbstractCegarLoop]: Abstraction has has 137 places, 126 transitions, 264 flow [2022-09-20 22:30:04,181 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 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 22:30:04,181 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 22:30:04,182 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] [2022-09-20 22:30:04,182 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-20 22:30:04,182 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 22:30:04,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 22:30:04,183 INFO L85 PathProgramCache]: Analyzing trace with hash 302544483, now seen corresponding path program 1 times [2022-09-20 22:30:04,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 22:30:04,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259768131] [2022-09-20 22:30:04,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 22:30:04,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 22:30:04,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 22:30:04,433 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 22:30:04,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 22:30:04,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259768131] [2022-09-20 22:30:04,435 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259768131] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 22:30:04,435 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 22:30:04,435 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-09-20 22:30:04,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926720278] [2022-09-20 22:30:04,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 22:30:04,437 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-09-20 22:30:04,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 22:30:04,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-09-20 22:30:04,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-09-20 22:30:04,442 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 134 [2022-09-20 22:30:04,443 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 126 transitions, 264 flow. Second operand has 7 states, 7 states have (on average 104.14285714285714) internal successors, (729), 7 states have internal predecessors, (729), 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 22:30:04,443 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 22:30:04,444 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 134 [2022-09-20 22:30:04,447 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 22:30:09,567 INFO L130 PetriNetUnfolder]: 14997/32234 cut-off events. [2022-09-20 22:30:09,568 INFO L131 PetriNetUnfolder]: For 1203/1203 co-relation queries the response was YES. [2022-09-20 22:30:09,676 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54123 conditions, 32234 events. 14997/32234 cut-off events. For 1203/1203 co-relation queries the response was YES. Maximal size of possible extension queue 1303. Compared 335284 event pairs, 1161 based on Foata normal form. 0/31566 useless extension candidates. Maximal degree in co-relation 54066. Up to 6036 conditions per place. [2022-09-20 22:30:09,893 INFO L137 encePairwiseOnDemand]: 122/134 looper letters, 49 selfloop transitions, 10 changer transitions 128/272 dead transitions. [2022-09-20 22:30:09,893 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 272 transitions, 936 flow [2022-09-20 22:30:09,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-09-20 22:30:09,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-09-20 22:30:09,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1503 transitions. [2022-09-20 22:30:09,898 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8628013777267508 [2022-09-20 22:30:09,898 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1503 transitions. [2022-09-20 22:30:09,899 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1503 transitions. [2022-09-20 22:30:09,899 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 22:30:09,900 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1503 transitions. [2022-09-20 22:30:09,904 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 115.61538461538461) internal successors, (1503), 13 states have internal predecessors, (1503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 22:30:09,908 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 134.0) internal successors, (1876), 14 states have internal predecessors, (1876), 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 22:30:09,910 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 134.0) internal successors, (1876), 14 states have internal predecessors, (1876), 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 22:30:09,910 INFO L175 Difference]: Start difference. First operand has 137 places, 126 transitions, 264 flow. Second operand 13 states and 1503 transitions. [2022-09-20 22:30:09,910 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 272 transitions, 936 flow [2022-09-20 22:30:09,913 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 272 transitions, 910 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-09-20 22:30:09,915 INFO L231 Difference]: Finished difference. Result has 159 places, 121 transitions, 356 flow [2022-09-20 22:30:09,916 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=260, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=356, PETRI_PLACES=159, PETRI_TRANSITIONS=121} [2022-09-20 22:30:09,917 INFO L287 CegarLoopForPetriNet]: 141 programPoint places, 18 predicate places. [2022-09-20 22:30:09,917 INFO L495 AbstractCegarLoop]: Abstraction has has 159 places, 121 transitions, 356 flow [2022-09-20 22:30:09,917 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 104.14285714285714) internal successors, (729), 7 states have internal predecessors, (729), 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 22:30:09,917 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 22:30:09,918 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 22:30:09,918 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-09-20 22:30:09,918 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 22:30:09,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 22:30:09,920 INFO L85 PathProgramCache]: Analyzing trace with hash 1333650786, now seen corresponding path program 1 times [2022-09-20 22:30:09,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 22:30:09,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100308833] [2022-09-20 22:30:09,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 22:30:09,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 22:30:10,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 22:30:10,137 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 22:30:10,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 22:30:10,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100308833] [2022-09-20 22:30:10,139 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100308833] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 22:30:10,139 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 22:30:10,139 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-09-20 22:30:10,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926956984] [2022-09-20 22:30:10,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 22:30:10,140 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-09-20 22:30:10,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 22:30:10,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-09-20 22:30:10,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-09-20 22:30:10,142 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 134 [2022-09-20 22:30:10,143 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 121 transitions, 356 flow. Second operand has 7 states, 7 states have (on average 104.28571428571429) internal successors, (730), 7 states have internal predecessors, (730), 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 22:30:10,144 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 22:30:10,144 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 134 [2022-09-20 22:30:10,144 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 22:30:13,151 INFO L130 PetriNetUnfolder]: 10976/18223 cut-off events. [2022-09-20 22:30:13,151 INFO L131 PetriNetUnfolder]: For 32191/32191 co-relation queries the response was YES. [2022-09-20 22:30:13,228 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55752 conditions, 18223 events. 10976/18223 cut-off events. For 32191/32191 co-relation queries the response was YES. Maximal size of possible extension queue 990. Compared 139607 event pairs, 1132 based on Foata normal form. 376/18299 useless extension candidates. Maximal degree in co-relation 55683. Up to 4789 conditions per place. [2022-09-20 22:30:13,312 INFO L137 encePairwiseOnDemand]: 121/134 looper letters, 53 selfloop transitions, 18 changer transitions 124/280 dead transitions. [2022-09-20 22:30:13,312 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 280 transitions, 1610 flow [2022-09-20 22:30:13,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-09-20 22:30:13,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-09-20 22:30:13,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1494 transitions. [2022-09-20 22:30:13,316 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8576349024110218 [2022-09-20 22:30:13,316 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1494 transitions. [2022-09-20 22:30:13,317 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1494 transitions. [2022-09-20 22:30:13,317 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 22:30:13,318 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1494 transitions. [2022-09-20 22:30:13,321 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 114.92307692307692) internal successors, (1494), 13 states have internal predecessors, (1494), 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 22:30:13,325 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 134.0) internal successors, (1876), 14 states have internal predecessors, (1876), 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 22:30:13,326 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 134.0) internal successors, (1876), 14 states have internal predecessors, (1876), 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 22:30:13,326 INFO L175 Difference]: Start difference. First operand has 159 places, 121 transitions, 356 flow. Second operand 13 states and 1494 transitions. [2022-09-20 22:30:13,326 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 280 transitions, 1610 flow [2022-09-20 22:30:13,410 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 280 transitions, 1586 flow, removed 12 selfloop flow, removed 3 redundant places. [2022-09-20 22:30:13,415 INFO L231 Difference]: Finished difference. Result has 157 places, 134 transitions, 582 flow [2022-09-20 22:30:13,415 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=350, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=582, PETRI_PLACES=157, PETRI_TRANSITIONS=134} [2022-09-20 22:30:13,417 INFO L287 CegarLoopForPetriNet]: 141 programPoint places, 16 predicate places. [2022-09-20 22:30:13,418 INFO L495 AbstractCegarLoop]: Abstraction has has 157 places, 134 transitions, 582 flow [2022-09-20 22:30:13,418 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 104.28571428571429) internal successors, (730), 7 states have internal predecessors, (730), 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 22:30:13,418 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 22:30:13,418 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 22:30:13,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-09-20 22:30:13,419 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 22:30:13,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 22:30:13,420 INFO L85 PathProgramCache]: Analyzing trace with hash -815655199, now seen corresponding path program 1 times [2022-09-20 22:30:13,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 22:30:13,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456668590] [2022-09-20 22:30:13,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 22:30:13,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 22:30:13,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 22:30:13,574 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 22:30:13,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 22:30:13,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456668590] [2022-09-20 22:30:13,575 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456668590] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 22:30:13,575 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 22:30:13,576 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-09-20 22:30:13,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459737007] [2022-09-20 22:30:13,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 22:30:13,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-09-20 22:30:13,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 22:30:13,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-09-20 22:30:13,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-09-20 22:30:13,578 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 134 [2022-09-20 22:30:13,579 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 134 transitions, 582 flow. Second operand has 7 states, 7 states have (on average 104.42857142857143) internal successors, (731), 7 states have internal predecessors, (731), 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 22:30:13,579 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 22:30:13,579 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 134 [2022-09-20 22:30:13,579 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 22:30:16,220 INFO L130 PetriNetUnfolder]: 9305/16259 cut-off events. [2022-09-20 22:30:16,221 INFO L131 PetriNetUnfolder]: For 60183/60183 co-relation queries the response was YES. [2022-09-20 22:30:16,285 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57250 conditions, 16259 events. 9305/16259 cut-off events. For 60183/60183 co-relation queries the response was YES. Maximal size of possible extension queue 841. Compared 128210 event pairs, 1066 based on Foata normal form. 280/16038 useless extension candidates. Maximal degree in co-relation 57168. Up to 4359 conditions per place. [2022-09-20 22:30:16,375 INFO L137 encePairwiseOnDemand]: 121/134 looper letters, 58 selfloop transitions, 28 changer transitions 109/280 dead transitions. [2022-09-20 22:30:16,375 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 280 transitions, 1984 flow [2022-09-20 22:30:16,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-09-20 22:30:16,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-09-20 22:30:16,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1486 transitions. [2022-09-20 22:30:16,387 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8530424799081515 [2022-09-20 22:30:16,387 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1486 transitions. [2022-09-20 22:30:16,388 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1486 transitions. [2022-09-20 22:30:16,388 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 22:30:16,389 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1486 transitions. [2022-09-20 22:30:16,393 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 114.3076923076923) internal successors, (1486), 13 states have internal predecessors, (1486), 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 22:30:16,397 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 134.0) internal successors, (1876), 14 states have internal predecessors, (1876), 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 22:30:16,397 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 134.0) internal successors, (1876), 14 states have internal predecessors, (1876), 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 22:30:16,397 INFO L175 Difference]: Start difference. First operand has 157 places, 134 transitions, 582 flow. Second operand 13 states and 1486 transitions. [2022-09-20 22:30:16,398 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 280 transitions, 1984 flow [2022-09-20 22:30:16,574 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 157 places, 280 transitions, 1912 flow, removed 36 selfloop flow, removed 3 redundant places. [2022-09-20 22:30:16,580 INFO L231 Difference]: Finished difference. Result has 169 places, 149 transitions, 916 flow [2022-09-20 22:30:16,581 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=564, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=134, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=916, PETRI_PLACES=169, PETRI_TRANSITIONS=149} [2022-09-20 22:30:16,581 INFO L287 CegarLoopForPetriNet]: 141 programPoint places, 28 predicate places. [2022-09-20 22:30:16,582 INFO L495 AbstractCegarLoop]: Abstraction has has 169 places, 149 transitions, 916 flow [2022-09-20 22:30:16,582 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 104.42857142857143) internal successors, (731), 7 states have internal predecessors, (731), 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 22:30:16,582 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 22:30:16,582 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] [2022-09-20 22:30:16,582 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-09-20 22:30:16,583 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 22:30:16,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 22:30:16,583 INFO L85 PathProgramCache]: Analyzing trace with hash 676899024, now seen corresponding path program 1 times [2022-09-20 22:30:16,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 22:30:16,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086671951] [2022-09-20 22:30:16,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 22:30:16,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 22:30:16,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 22:30:16,749 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 22:30:16,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 22:30:16,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086671951] [2022-09-20 22:30:16,750 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1086671951] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 22:30:16,750 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 22:30:16,750 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-09-20 22:30:16,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589433806] [2022-09-20 22:30:16,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 22:30:16,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-09-20 22:30:16,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 22:30:16,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-09-20 22:30:16,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-09-20 22:30:16,753 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 134 [2022-09-20 22:30:16,754 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 149 transitions, 916 flow. Second operand has 7 states, 7 states have (on average 104.57142857142857) internal successors, (732), 7 states have internal predecessors, (732), 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 22:30:16,754 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 22:30:16,754 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 134 [2022-09-20 22:30:16,755 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 22:30:20,143 INFO L130 PetriNetUnfolder]: 10753/19338 cut-off events. [2022-09-20 22:30:20,143 INFO L131 PetriNetUnfolder]: For 95979/96097 co-relation queries the response was YES. [2022-09-20 22:30:20,249 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71957 conditions, 19338 events. 10753/19338 cut-off events. For 95979/96097 co-relation queries the response was YES. Maximal size of possible extension queue 1024. Compared 163603 event pairs, 1332 based on Foata normal form. 335/19036 useless extension candidates. Maximal degree in co-relation 71862. Up to 4640 conditions per place. [2022-09-20 22:30:20,335 INFO L137 encePairwiseOnDemand]: 122/134 looper letters, 61 selfloop transitions, 37 changer transitions 99/282 dead transitions. [2022-09-20 22:30:20,335 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 282 transitions, 2270 flow [2022-09-20 22:30:20,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-09-20 22:30:20,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-09-20 22:30:20,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1477 transitions. [2022-09-20 22:30:20,339 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8478760045924225 [2022-09-20 22:30:20,339 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1477 transitions. [2022-09-20 22:30:20,339 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1477 transitions. [2022-09-20 22:30:20,340 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 22:30:20,340 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1477 transitions. [2022-09-20 22:30:20,343 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 113.61538461538461) internal successors, (1477), 13 states have internal predecessors, (1477), 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 22:30:20,346 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 134.0) internal successors, (1876), 14 states have internal predecessors, (1876), 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 22:30:20,346 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 134.0) internal successors, (1876), 14 states have internal predecessors, (1876), 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 22:30:20,346 INFO L175 Difference]: Start difference. First operand has 169 places, 149 transitions, 916 flow. Second operand 13 states and 1477 transitions. [2022-09-20 22:30:20,347 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 282 transitions, 2270 flow [2022-09-20 22:30:20,702 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 282 transitions, 2148 flow, removed 61 selfloop flow, removed 6 redundant places. [2022-09-20 22:30:20,705 INFO L231 Difference]: Finished difference. Result has 178 places, 156 transitions, 1144 flow [2022-09-20 22:30:20,706 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=848, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1144, PETRI_PLACES=178, PETRI_TRANSITIONS=156} [2022-09-20 22:30:20,706 INFO L287 CegarLoopForPetriNet]: 141 programPoint places, 37 predicate places. [2022-09-20 22:30:20,706 INFO L495 AbstractCegarLoop]: Abstraction has has 178 places, 156 transitions, 1144 flow [2022-09-20 22:30:20,707 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 104.57142857142857) internal successors, (732), 7 states have internal predecessors, (732), 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 22:30:20,707 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 22:30:20,707 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] [2022-09-20 22:30:20,707 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-09-20 22:30:20,707 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 22:30:20,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 22:30:20,708 INFO L85 PathProgramCache]: Analyzing trace with hash 1398862505, now seen corresponding path program 1 times [2022-09-20 22:30:20,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 22:30:20,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375469559] [2022-09-20 22:30:20,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 22:30:20,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 22:30:20,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 22:30:20,792 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 22:30:20,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 22:30:20,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375469559] [2022-09-20 22:30:20,793 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375469559] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 22:30:20,793 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 22:30:20,793 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-09-20 22:30:20,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664968545] [2022-09-20 22:30:20,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 22:30:20,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-09-20 22:30:20,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 22:30:20,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-09-20 22:30:20,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-09-20 22:30:20,795 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 134 [2022-09-20 22:30:20,796 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 178 places, 156 transitions, 1144 flow. Second operand has 7 states, 7 states have (on average 104.57142857142857) internal successors, (732), 7 states have internal predecessors, (732), 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 22:30:20,796 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 22:30:20,796 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 134 [2022-09-20 22:30:20,796 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 22:30:25,587 INFO L130 PetriNetUnfolder]: 13137/22939 cut-off events. [2022-09-20 22:30:25,587 INFO L131 PetriNetUnfolder]: For 177963/177987 co-relation queries the response was YES. [2022-09-20 22:30:25,791 INFO L83 FinitePrefix]: Finished finitePrefix Result has 94717 conditions, 22939 events. 13137/22939 cut-off events. For 177963/177987 co-relation queries the response was YES. Maximal size of possible extension queue 1252. Compared 193406 event pairs, 2774 based on Foata normal form. 332/22720 useless extension candidates. Maximal degree in co-relation 94614. Up to 6432 conditions per place. [2022-09-20 22:30:25,907 INFO L137 encePairwiseOnDemand]: 122/134 looper letters, 64 selfloop transitions, 38 changer transitions 120/307 dead transitions. [2022-09-20 22:30:25,907 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 307 transitions, 3066 flow [2022-09-20 22:30:25,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-09-20 22:30:25,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-09-20 22:30:25,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1479 transitions. [2022-09-20 22:30:25,912 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8490241102181401 [2022-09-20 22:30:25,913 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1479 transitions. [2022-09-20 22:30:25,913 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1479 transitions. [2022-09-20 22:30:25,914 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 22:30:25,914 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1479 transitions. [2022-09-20 22:30:25,919 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 113.76923076923077) internal successors, (1479), 13 states have internal predecessors, (1479), 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 22:30:25,923 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 134.0) internal successors, (1876), 14 states have internal predecessors, (1876), 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 22:30:25,924 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 134.0) internal successors, (1876), 14 states have internal predecessors, (1876), 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 22:30:25,924 INFO L175 Difference]: Start difference. First operand has 178 places, 156 transitions, 1144 flow. Second operand 13 states and 1479 transitions. [2022-09-20 22:30:25,924 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 181 places, 307 transitions, 3066 flow [2022-09-20 22:30:26,321 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 307 transitions, 2990 flow, removed 38 selfloop flow, removed 10 redundant places. [2022-09-20 22:30:26,325 INFO L231 Difference]: Finished difference. Result has 183 places, 159 transitions, 1380 flow [2022-09-20 22:30:26,325 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=1110, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1380, PETRI_PLACES=183, PETRI_TRANSITIONS=159} [2022-09-20 22:30:26,326 INFO L287 CegarLoopForPetriNet]: 141 programPoint places, 42 predicate places. [2022-09-20 22:30:26,326 INFO L495 AbstractCegarLoop]: Abstraction has has 183 places, 159 transitions, 1380 flow [2022-09-20 22:30:26,326 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 104.57142857142857) internal successors, (732), 7 states have internal predecessors, (732), 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 22:30:26,326 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 22:30:26,327 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] [2022-09-20 22:30:26,327 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-09-20 22:30:26,327 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 22:30:26,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 22:30:26,327 INFO L85 PathProgramCache]: Analyzing trace with hash -1879736926, now seen corresponding path program 1 times [2022-09-20 22:30:26,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 22:30:26,328 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022093960] [2022-09-20 22:30:26,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 22:30:26,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 22:30:26,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 22:30:26,414 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 22:30:26,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 22:30:26,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022093960] [2022-09-20 22:30:26,414 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022093960] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 22:30:26,414 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 22:30:26,414 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-09-20 22:30:26,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970308882] [2022-09-20 22:30:26,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 22:30:26,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-20 22:30:26,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 22:30:26,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-20 22:30:26,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-09-20 22:30:26,416 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 134 [2022-09-20 22:30:26,417 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 159 transitions, 1380 flow. Second operand has 6 states, 6 states have (on average 109.0) internal successors, (654), 6 states have internal predecessors, (654), 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 22:30:26,417 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 22:30:26,417 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 134 [2022-09-20 22:30:26,417 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 22:30:40,851 INFO L130 PetriNetUnfolder]: 44853/76729 cut-off events. [2022-09-20 22:30:40,851 INFO L131 PetriNetUnfolder]: For 422233/506161 co-relation queries the response was YES. [2022-09-20 22:30:41,627 INFO L83 FinitePrefix]: Finished finitePrefix Result has 200677 conditions, 76729 events. 44853/76729 cut-off events. For 422233/506161 co-relation queries the response was YES. Maximal size of possible extension queue 4347. Compared 749803 event pairs, 2696 based on Foata normal form. 2541/76144 useless extension candidates. Maximal degree in co-relation 200573. Up to 25617 conditions per place. [2022-09-20 22:30:41,856 INFO L137 encePairwiseOnDemand]: 123/134 looper letters, 125 selfloop transitions, 20 changer transitions 0/276 dead transitions. [2022-09-20 22:30:41,857 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 183 places, 276 transitions, 2778 flow [2022-09-20 22:30:41,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-09-20 22:30:41,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-09-20 22:30:41,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1177 transitions. [2022-09-20 22:30:41,860 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8783582089552239 [2022-09-20 22:30:41,860 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1177 transitions. [2022-09-20 22:30:41,860 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1177 transitions. [2022-09-20 22:30:41,860 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 22:30:41,861 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1177 transitions. [2022-09-20 22:30:41,863 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 117.7) internal successors, (1177), 10 states have internal predecessors, (1177), 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 22:30:41,865 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 134.0) internal successors, (1474), 11 states have internal predecessors, (1474), 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 22:30:41,866 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 134.0) internal successors, (1474), 11 states have internal predecessors, (1474), 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 22:30:41,866 INFO L175 Difference]: Start difference. First operand has 183 places, 159 transitions, 1380 flow. Second operand 10 states and 1177 transitions. [2022-09-20 22:30:41,866 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 183 places, 276 transitions, 2778 flow [2022-09-20 22:30:42,127 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 178 places, 276 transitions, 2764 flow, removed 7 selfloop flow, removed 5 redundant places. [2022-09-20 22:30:42,131 INFO L231 Difference]: Finished difference. Result has 184 places, 177 transitions, 1509 flow [2022-09-20 22:30:42,132 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=1366, PETRI_DIFFERENCE_MINUEND_PLACES=169, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=159, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=149, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1509, PETRI_PLACES=184, PETRI_TRANSITIONS=177} [2022-09-20 22:30:42,133 INFO L287 CegarLoopForPetriNet]: 141 programPoint places, 43 predicate places. [2022-09-20 22:30:42,133 INFO L495 AbstractCegarLoop]: Abstraction has has 184 places, 177 transitions, 1509 flow [2022-09-20 22:30:42,133 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 109.0) internal successors, (654), 6 states have internal predecessors, (654), 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 22:30:42,133 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 22:30:42,133 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] [2022-09-20 22:30:42,134 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-09-20 22:30:42,134 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 22:30:42,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 22:30:42,134 INFO L85 PathProgramCache]: Analyzing trace with hash 789326112, now seen corresponding path program 1 times [2022-09-20 22:30:42,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 22:30:42,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323748877] [2022-09-20 22:30:42,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 22:30:42,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 22:30:42,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 22:30:42,230 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 22:30:42,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 22:30:42,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323748877] [2022-09-20 22:30:42,231 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323748877] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 22:30:42,231 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 22:30:42,231 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-09-20 22:30:42,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662063541] [2022-09-20 22:30:42,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 22:30:42,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-09-20 22:30:42,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 22:30:42,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-09-20 22:30:42,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-09-20 22:30:42,233 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 134 [2022-09-20 22:30:42,233 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 184 places, 177 transitions, 1509 flow. Second operand has 7 states, 7 states have (on average 104.85714285714286) internal successors, (734), 7 states have internal predecessors, (734), 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 22:30:42,233 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 22:30:42,234 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 134 [2022-09-20 22:30:42,234 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 22:30:50,738 INFO L130 PetriNetUnfolder]: 16747/44002 cut-off events. [2022-09-20 22:30:50,739 INFO L131 PetriNetUnfolder]: For 235528/242560 co-relation queries the response was YES. [2022-09-20 22:30:51,443 INFO L83 FinitePrefix]: Finished finitePrefix Result has 151002 conditions, 44002 events. 16747/44002 cut-off events. For 235528/242560 co-relation queries the response was YES. Maximal size of possible extension queue 3058. Compared 586608 event pairs, 4543 based on Foata normal form. 822/41445 useless extension candidates. Maximal degree in co-relation 150891. Up to 8892 conditions per place. [2022-09-20 22:30:51,820 INFO L137 encePairwiseOnDemand]: 122/134 looper letters, 142 selfloop transitions, 64 changer transitions 23/332 dead transitions. [2022-09-20 22:30:51,821 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 332 transitions, 4073 flow [2022-09-20 22:30:51,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-09-20 22:30:51,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-09-20 22:30:51,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1469 transitions. [2022-09-20 22:30:51,825 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8432835820895522 [2022-09-20 22:30:51,825 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1469 transitions. [2022-09-20 22:30:51,825 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1469 transitions. [2022-09-20 22:30:51,826 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 22:30:51,826 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1469 transitions. [2022-09-20 22:30:51,829 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 113.0) internal successors, (1469), 13 states have internal predecessors, (1469), 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 22:30:51,831 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 134.0) internal successors, (1876), 14 states have internal predecessors, (1876), 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 22:30:51,832 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 134.0) internal successors, (1876), 14 states have internal predecessors, (1876), 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 22:30:51,832 INFO L175 Difference]: Start difference. First operand has 184 places, 177 transitions, 1509 flow. Second operand 13 states and 1469 transitions. [2022-09-20 22:30:51,832 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 196 places, 332 transitions, 4073 flow [2022-09-20 22:30:52,806 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 195 places, 332 transitions, 4071 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-09-20 22:30:52,810 INFO L231 Difference]: Finished difference. Result has 207 places, 214 transitions, 2587 flow [2022-09-20 22:30:52,810 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=1507, PETRI_DIFFERENCE_MINUEND_PLACES=183, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=177, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=2587, PETRI_PLACES=207, PETRI_TRANSITIONS=214} [2022-09-20 22:30:52,811 INFO L287 CegarLoopForPetriNet]: 141 programPoint places, 66 predicate places. [2022-09-20 22:30:52,811 INFO L495 AbstractCegarLoop]: Abstraction has has 207 places, 214 transitions, 2587 flow [2022-09-20 22:30:52,812 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 104.85714285714286) internal successors, (734), 7 states have internal predecessors, (734), 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 22:30:52,812 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 22:30:52,812 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] [2022-09-20 22:30:52,812 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-09-20 22:30:52,812 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 22:30:52,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 22:30:52,812 INFO L85 PathProgramCache]: Analyzing trace with hash 1321559036, now seen corresponding path program 1 times [2022-09-20 22:30:52,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 22:30:52,813 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681483456] [2022-09-20 22:30:52,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 22:30:52,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 22:30:52,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 22:30:52,912 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 22:30:52,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 22:30:52,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681483456] [2022-09-20 22:30:52,912 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681483456] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 22:30:52,912 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 22:30:52,912 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-09-20 22:30:52,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015679924] [2022-09-20 22:30:52,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 22:30:52,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-09-20 22:30:52,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 22:30:52,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-09-20 22:30:52,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-09-20 22:30:52,915 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 134 [2022-09-20 22:30:52,915 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 214 transitions, 2587 flow. Second operand has 7 states, 7 states have (on average 109.0) internal successors, (763), 7 states have internal predecessors, (763), 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 22:30:52,915 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 22:30:52,915 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 134 [2022-09-20 22:30:52,916 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 22:31:23,602 INFO L130 PetriNetUnfolder]: 65908/117547 cut-off events. [2022-09-20 22:31:23,602 INFO L131 PetriNetUnfolder]: For 931837/1064439 co-relation queries the response was YES. [2022-09-20 22:31:26,375 INFO L83 FinitePrefix]: Finished finitePrefix Result has 404340 conditions, 117547 events. 65908/117547 cut-off events. For 931837/1064439 co-relation queries the response was YES. Maximal size of possible extension queue 7127. Compared 1293618 event pairs, 2346 based on Foata normal form. 6111/121298 useless extension candidates. Maximal degree in co-relation 404219. Up to 27030 conditions per place. [2022-09-20 22:31:26,733 INFO L137 encePairwiseOnDemand]: 123/134 looper letters, 158 selfloop transitions, 38 changer transitions 49/396 dead transitions. [2022-09-20 22:31:26,733 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 219 places, 396 transitions, 5895 flow [2022-09-20 22:31:26,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-09-20 22:31:26,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-09-20 22:31:26,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1535 transitions. [2022-09-20 22:31:26,746 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.881171067738232 [2022-09-20 22:31:26,753 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1535 transitions.