/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-OGIterative-CovSimpl.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe012_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2cf4d3f9dd5fed411db405f577e28237a543b59a-2cf4d3f [2021-08-13 05:46:08,279 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-13 05:46:08,281 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-13 05:46:08,310 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-13 05:46:08,310 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-13 05:46:08,312 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-13 05:46:08,314 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-13 05:46:08,318 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-13 05:46:08,320 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-13 05:46:08,323 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-13 05:46:08,323 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-13 05:46:08,324 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-13 05:46:08,324 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-13 05:46:08,326 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-13 05:46:08,327 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-13 05:46:08,328 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-13 05:46:08,330 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-13 05:46:08,330 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-13 05:46:08,332 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-13 05:46:08,338 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-13 05:46:08,338 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-13 05:46:08,339 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-13 05:46:08,340 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-13 05:46:08,341 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-13 05:46:08,346 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-08-13 05:46:08,348 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-13 05:46:08,348 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-13 05:46:08,349 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-13 05:46:08,350 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-13 05:46:08,352 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-13 05:46:08,352 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-13 05:46:08,352 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-13 05:46:08,353 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-13 05:46:08,353 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-13 05:46:08,353 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-13 05:46:08,354 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-13 05:46:08,354 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-OGIterative-CovSimpl.epf [2021-08-13 05:46:08,381 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-13 05:46:08,381 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-13 05:46:08,383 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-13 05:46:08,383 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-13 05:46:08,384 INFO L138 SettingsManager]: * Use SBE=true [2021-08-13 05:46:08,384 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-13 05:46:08,384 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-13 05:46:08,384 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-13 05:46:08,384 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-13 05:46:08,384 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-13 05:46:08,385 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-13 05:46:08,385 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-13 05:46:08,385 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-13 05:46:08,385 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-13 05:46:08,385 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-13 05:46:08,385 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-13 05:46:08,386 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-13 05:46:08,386 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-13 05:46:08,386 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-13 05:46:08,386 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-13 05:46:08,386 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-13 05:46:08,386 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-13 05:46:08,386 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-13 05:46:08,386 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-13 05:46:08,387 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-13 05:46:08,387 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-13 05:46:08,387 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-13 05:46:08,387 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-13 05:46:08,387 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-08-13 05:46:08,387 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-13 05:46:08,387 INFO L138 SettingsManager]: * Compute cosets for OwickiGries annotation iteratively=true [2021-08-13 05:46:08,387 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-08-13 05:46:08,387 INFO L138 SettingsManager]: * Simplify away covered predicates in OwickiGries annotation=true 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-13 05:46:08,625 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-13 05:46:08,644 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-13 05:46:08,645 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-13 05:46:08,646 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-13 05:46:08,647 INFO L275 PluginConnector]: CDTParser initialized [2021-08-13 05:46:08,647 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe012_tso.oepc.i [2021-08-13 05:46:08,689 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8b5144604/1feb71cc0657488e9f51b4ec8db28a20/FLAGd16a59010 [2021-08-13 05:46:09,131 INFO L306 CDTParser]: Found 1 translation units. [2021-08-13 05:46:09,132 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe012_tso.oepc.i [2021-08-13 05:46:09,144 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8b5144604/1feb71cc0657488e9f51b4ec8db28a20/FLAGd16a59010 [2021-08-13 05:46:09,174 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8b5144604/1feb71cc0657488e9f51b4ec8db28a20 [2021-08-13 05:46:09,176 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-13 05:46:09,177 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-13 05:46:09,179 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-13 05:46:09,180 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-13 05:46:09,182 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-13 05:46:09,182 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.08 05:46:09" (1/1) ... [2021-08-13 05:46:09,183 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@509ec6f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 05:46:09, skipping insertion in model container [2021-08-13 05:46:09,183 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.08 05:46:09" (1/1) ... [2021-08-13 05:46:09,187 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-13 05:46:09,227 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-13 05:46:09,354 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe012_tso.oepc.i[950,963] [2021-08-13 05:46:09,478 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-13 05:46:09,483 INFO L203 MainTranslator]: Completed pre-run [2021-08-13 05:46:09,493 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe012_tso.oepc.i[950,963] [2021-08-13 05:46:09,508 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-13 05:46:09,553 INFO L208 MainTranslator]: Completed translation [2021-08-13 05:46:09,553 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 05:46:09 WrapperNode [2021-08-13 05:46:09,553 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-13 05:46:09,554 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-13 05:46:09,554 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-13 05:46:09,554 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-13 05:46:09,559 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 05:46:09" (1/1) ... [2021-08-13 05:46:09,567 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 05:46:09" (1/1) ... [2021-08-13 05:46:09,578 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-13 05:46:09,579 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-13 05:46:09,579 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-13 05:46:09,579 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-13 05:46:09,584 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 05:46:09" (1/1) ... [2021-08-13 05:46:09,584 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 05:46:09" (1/1) ... [2021-08-13 05:46:09,586 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 05:46:09" (1/1) ... [2021-08-13 05:46:09,586 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 05:46:09" (1/1) ... [2021-08-13 05:46:09,589 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 05:46:09" (1/1) ... [2021-08-13 05:46:09,590 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 05:46:09" (1/1) ... [2021-08-13 05:46:09,591 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 05:46:09" (1/1) ... [2021-08-13 05:46:09,593 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-13 05:46:09,593 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-13 05:46:09,594 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-13 05:46:09,594 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-13 05:46:09,594 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 05:46:09" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-13 05:46:09,642 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-13 05:46:09,643 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-08-13 05:46:09,643 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-13 05:46:09,643 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-13 05:46:09,645 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-08-13 05:46:09,645 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-08-13 05:46:09,645 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-08-13 05:46:09,645 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-08-13 05:46:09,645 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-08-13 05:46:09,645 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-08-13 05:46:09,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-13 05:46:09,645 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-08-13 05:46:09,645 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-13 05:46:09,646 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-13 05:46:09,647 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-08-13 05:46:09,928 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-13 05:46:09,929 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-08-13 05:46:09,931 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.08 05:46:09 BoogieIcfgContainer [2021-08-13 05:46:09,931 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-13 05:46:09,932 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-13 05:46:09,932 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-13 05:46:09,934 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-13 05:46:09,934 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.08 05:46:09" (1/3) ... [2021-08-13 05:46:09,935 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e7177f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.08 05:46:09, skipping insertion in model container [2021-08-13 05:46:09,935 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 05:46:09" (2/3) ... [2021-08-13 05:46:09,935 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e7177f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.08 05:46:09, skipping insertion in model container [2021-08-13 05:46:09,935 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.08 05:46:09" (3/3) ... [2021-08-13 05:46:09,936 INFO L111 eAbstractionObserver]: Analyzing ICFG safe012_tso.oepc.i [2021-08-13 05:46:09,940 INFO L206 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-13 05:46:09,940 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-13 05:46:09,941 INFO L445 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-13 05:46:09,964 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 05:46:09,964 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 05:46:09,964 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 05:46:09,964 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 05:46:09,965 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 05:46:09,965 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 05:46:09,967 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 05:46:09,967 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 05:46:09,967 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 05:46:09,967 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 05:46:09,967 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 05:46:09,967 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 05:46:09,968 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 05:46:09,968 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 05:46:09,968 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 05:46:09,968 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 05:46:09,969 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 05:46:09,969 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 05:46:09,969 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 05:46:09,969 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 05:46:09,972 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 05:46:09,973 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 05:46:09,973 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 05:46:09,973 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 05:46:09,974 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 05:46:09,974 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 05:46:09,974 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 05:46:09,974 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 05:46:09,974 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 05:46:09,974 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 05:46:09,974 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 05:46:09,975 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 05:46:09,975 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 05:46:09,975 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 05:46:09,975 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 05:46:09,975 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 05:46:09,977 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 05:46:09,977 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 05:46:09,977 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 05:46:09,977 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 05:46:09,981 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 05:46:09,981 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 05:46:09,981 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 05:46:09,981 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 05:46:09,982 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 05:46:09,983 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 05:46:09,983 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 05:46:09,983 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 05:46:09,985 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-08-13 05:46:10,000 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-08-13 05:46:10,020 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-08-13 05:46:10,020 INFO L379 AbstractCegarLoop]: Hoare is false [2021-08-13 05:46:10,020 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-08-13 05:46:10,020 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-13 05:46:10,020 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-13 05:46:10,020 INFO L383 AbstractCegarLoop]: Difference is false [2021-08-13 05:46:10,020 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-13 05:46:10,020 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-08-13 05:46:10,030 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 93 places, 85 transitions, 185 flow [2021-08-13 05:46:10,070 INFO L129 PetriNetUnfolder]: 2/82 cut-off events. [2021-08-13 05:46:10,070 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-08-13 05:46:10,072 INFO L84 FinitePrefix]: Finished finitePrefix Result has 92 conditions, 82 events. 2/82 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 45 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 63. Up to 2 conditions per place. [2021-08-13 05:46:10,073 INFO L82 GeneralOperation]: Start removeDead. Operand has 93 places, 85 transitions, 185 flow [2021-08-13 05:46:10,076 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 79 places, 70 transitions, 149 flow [2021-08-13 05:46:10,091 INFO L129 PetriNetUnfolder]: 1/69 cut-off events. [2021-08-13 05:46:10,091 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-08-13 05:46:10,091 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 05:46:10,092 INFO L266 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] [2021-08-13 05:46:10,092 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 05:46:10,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 05:46:10,095 INFO L82 PathProgramCache]: Analyzing trace with hash 1408065288, now seen corresponding path program 1 times [2021-08-13 05:46:10,100 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 05:46:10,100 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715826425] [2021-08-13 05:46:10,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 05:46:10,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 05:46:10,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 05:46:10,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 05:46:10,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 05:46:10,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 05:46:10,350 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-08-13 05:46:10,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 05:46:10,359 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 05:46:10,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 05:46:10,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 05:46:10,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 05:46:10,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 05:46:10,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 05:46:10,387 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 05:46:10,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 05:46:10,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 05:46:10,390 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 05:46:10,390 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715826425] [2021-08-13 05:46:10,390 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [715826425] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 05:46:10,391 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 05:46:10,391 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 05:46:10,391 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260406519] [2021-08-13 05:46:10,396 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-08-13 05:46:10,396 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 05:46:10,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-13 05:46:10,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-08-13 05:46:10,407 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 85 [2021-08-13 05:46:10,409 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 70 transitions, 149 flow. Second operand has 7 states, 7 states have (on average 70.28571428571429) internal successors, (492), 7 states have internal predecessors, (492), 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) [2021-08-13 05:46:10,409 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 05:46:10,409 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 85 [2021-08-13 05:46:10,410 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 05:46:10,538 INFO L129 PetriNetUnfolder]: 46/195 cut-off events. [2021-08-13 05:46:10,538 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-08-13 05:46:10,539 INFO L84 FinitePrefix]: Finished finitePrefix Result has 305 conditions, 195 events. 46/195 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 674 event pairs, 21 based on Foata normal form. 8/197 useless extension candidates. Maximal degree in co-relation 271. Up to 47 conditions per place. [2021-08-13 05:46:10,540 INFO L132 encePairwiseOnDemand]: 78/85 looper letters, 11 selfloop transitions, 2 changer transitions 19/89 dead transitions. [2021-08-13 05:46:10,540 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 89 transitions, 251 flow [2021-08-13 05:46:10,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-13 05:46:10,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-08-13 05:46:10,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 657 transitions. [2021-08-13 05:46:10,550 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8588235294117647 [2021-08-13 05:46:10,551 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 657 transitions. [2021-08-13 05:46:10,551 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 657 transitions. [2021-08-13 05:46:10,552 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 05:46:10,554 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 657 transitions. [2021-08-13 05:46:10,556 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 73.0) internal successors, (657), 9 states have internal predecessors, (657), 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) [2021-08-13 05:46:10,560 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 85.0) internal successors, (850), 10 states have internal predecessors, (850), 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) [2021-08-13 05:46:10,561 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 85.0) internal successors, (850), 10 states have internal predecessors, (850), 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) [2021-08-13 05:46:10,561 INFO L348 CegarLoopForPetriNet]: 79 programPoint places, 8 predicate places. [2021-08-13 05:46:10,561 INFO L482 AbstractCegarLoop]: Abstraction has has 87 places, 89 transitions, 251 flow [2021-08-13 05:46:10,562 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 70.28571428571429) internal successors, (492), 7 states have internal predecessors, (492), 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) [2021-08-13 05:46:10,562 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 05:46:10,562 INFO L266 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] [2021-08-13 05:46:10,562 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-13 05:46:10,562 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 05:46:10,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 05:46:10,563 INFO L82 PathProgramCache]: Analyzing trace with hash 452026023, now seen corresponding path program 1 times [2021-08-13 05:46:10,563 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 05:46:10,563 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826873533] [2021-08-13 05:46:10,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 05:46:10,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 05:46:10,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 05:46:10,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 05:46:10,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 05:46:10,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 05:46:10,612 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-08-13 05:46:10,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 05:46:10,620 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 05:46:10,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 05:46:10,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 05:46:10,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 05:46:10,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 05:46:10,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 05:46:10,648 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 05:46:10,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 05:46:10,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 05:46:10,649 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 05:46:10,649 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826873533] [2021-08-13 05:46:10,649 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [826873533] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 05:46:10,649 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 05:46:10,649 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 05:46:10,649 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459752090] [2021-08-13 05:46:10,650 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-08-13 05:46:10,650 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 05:46:10,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-13 05:46:10,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-08-13 05:46:10,651 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 85 [2021-08-13 05:46:10,652 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 89 transitions, 251 flow. Second operand has 7 states, 7 states have (on average 68.57142857142857) internal successors, (480), 7 states have internal predecessors, (480), 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) [2021-08-13 05:46:10,652 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 05:46:10,652 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 85 [2021-08-13 05:46:10,652 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 05:46:10,917 INFO L129 PetriNetUnfolder]: 142/447 cut-off events. [2021-08-13 05:46:10,917 INFO L130 PetriNetUnfolder]: For 52/124 co-relation queries the response was YES. [2021-08-13 05:46:10,919 INFO L84 FinitePrefix]: Finished finitePrefix Result has 976 conditions, 447 events. 142/447 cut-off events. For 52/124 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 2403 event pairs, 5 based on Foata normal form. 10/452 useless extension candidates. Maximal degree in co-relation 936. Up to 106 conditions per place. [2021-08-13 05:46:10,920 INFO L132 encePairwiseOnDemand]: 73/85 looper letters, 16 selfloop transitions, 11 changer transitions 125/207 dead transitions. [2021-08-13 05:46:10,920 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 207 transitions, 1013 flow [2021-08-13 05:46:10,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-08-13 05:46:10,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-08-13 05:46:10,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1222 transitions. [2021-08-13 05:46:10,924 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.845674740484429 [2021-08-13 05:46:10,924 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1222 transitions. [2021-08-13 05:46:10,924 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1222 transitions. [2021-08-13 05:46:10,924 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 05:46:10,925 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1222 transitions. [2021-08-13 05:46:10,927 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 71.88235294117646) internal successors, (1222), 17 states have internal predecessors, (1222), 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) [2021-08-13 05:46:10,928 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 85.0) internal successors, (1530), 18 states have internal predecessors, (1530), 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) [2021-08-13 05:46:10,929 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 85.0) internal successors, (1530), 18 states have internal predecessors, (1530), 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) [2021-08-13 05:46:10,929 INFO L348 CegarLoopForPetriNet]: 79 programPoint places, 24 predicate places. [2021-08-13 05:46:10,930 INFO L482 AbstractCegarLoop]: Abstraction has has 103 places, 207 transitions, 1013 flow [2021-08-13 05:46:10,930 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 68.57142857142857) internal successors, (480), 7 states have internal predecessors, (480), 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) [2021-08-13 05:46:10,930 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 05:46:10,930 INFO L266 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] [2021-08-13 05:46:10,930 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-13 05:46:10,930 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 05:46:10,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 05:46:10,931 INFO L82 PathProgramCache]: Analyzing trace with hash 1841101257, now seen corresponding path program 1 times [2021-08-13 05:46:10,931 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 05:46:10,931 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581911999] [2021-08-13 05:46:10,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 05:46:10,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 05:46:10,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 05:46:10,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 05:46:10,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 05:46:10,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 05:46:10,992 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 05:46:10,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 05:46:10,997 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 05:46:11,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 05:46:11,012 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 05:46:11,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 05:46:11,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 05:46:11,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 05:46:11,030 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 05:46:11,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 05:46:11,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 05:46:11,032 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 05:46:11,032 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581911999] [2021-08-13 05:46:11,032 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1581911999] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 05:46:11,032 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 05:46:11,032 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 05:46:11,032 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970687868] [2021-08-13 05:46:11,033 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-08-13 05:46:11,033 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 05:46:11,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-13 05:46:11,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-08-13 05:46:11,036 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 85 [2021-08-13 05:46:11,036 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 207 transitions, 1013 flow. Second operand has 7 states, 7 states have (on average 72.28571428571429) internal successors, (506), 7 states have internal predecessors, (506), 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) [2021-08-13 05:46:11,036 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 05:46:11,036 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 85 [2021-08-13 05:46:11,037 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 05:46:11,216 INFO L129 PetriNetUnfolder]: 142/457 cut-off events. [2021-08-13 05:46:11,217 INFO L130 PetriNetUnfolder]: For 135/417 co-relation queries the response was YES. [2021-08-13 05:46:11,221 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1228 conditions, 457 events. 142/457 cut-off events. For 135/417 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 2545 event pairs, 9 based on Foata normal form. 18/469 useless extension candidates. Maximal degree in co-relation 1184. Up to 114 conditions per place. [2021-08-13 05:46:11,222 INFO L132 encePairwiseOnDemand]: 77/85 looper letters, 6 selfloop transitions, 4 changer transitions 154/222 dead transitions. [2021-08-13 05:46:11,222 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 222 transitions, 1311 flow [2021-08-13 05:46:11,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-13 05:46:11,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-08-13 05:46:11,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 956 transitions. [2021-08-13 05:46:11,228 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.865158371040724 [2021-08-13 05:46:11,228 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 956 transitions. [2021-08-13 05:46:11,228 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 956 transitions. [2021-08-13 05:46:11,229 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 05:46:11,229 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 956 transitions. [2021-08-13 05:46:11,230 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 73.53846153846153) internal successors, (956), 13 states have internal predecessors, (956), 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) [2021-08-13 05:46:11,232 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 85.0) internal successors, (1190), 14 states have internal predecessors, (1190), 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) [2021-08-13 05:46:11,232 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 85.0) internal successors, (1190), 14 states have internal predecessors, (1190), 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) [2021-08-13 05:46:11,232 INFO L348 CegarLoopForPetriNet]: 79 programPoint places, 36 predicate places. [2021-08-13 05:46:11,232 INFO L482 AbstractCegarLoop]: Abstraction has has 115 places, 222 transitions, 1311 flow [2021-08-13 05:46:11,233 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 72.28571428571429) internal successors, (506), 7 states have internal predecessors, (506), 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) [2021-08-13 05:46:11,233 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 05:46:11,233 INFO L266 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] [2021-08-13 05:46:11,233 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-13 05:46:11,233 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 05:46:11,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 05:46:11,234 INFO L82 PathProgramCache]: Analyzing trace with hash 1409790868, now seen corresponding path program 1 times [2021-08-13 05:46:11,234 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 05:46:11,234 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472728194] [2021-08-13 05:46:11,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 05:46:11,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 05:46:11,311 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 05:46:11,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 05:46:11,313 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 05:46:11,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 05:46:11,318 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 05:46:11,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 05:46:11,324 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-08-13 05:46:11,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 05:46:11,334 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 05:46:11,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 05:46:11,369 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 05:46:11,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 05:46:11,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 05:46:11,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 05:46:11,385 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 05:46:11,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 05:46:11,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 05:46:11,386 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 05:46:11,386 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472728194] [2021-08-13 05:46:11,396 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472728194] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 05:46:11,397 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 05:46:11,397 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 05:46:11,397 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250959203] [2021-08-13 05:46:11,397 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 05:46:11,397 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 05:46:11,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 05:46:11,398 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-08-13 05:46:11,399 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 85 [2021-08-13 05:46:11,399 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 222 transitions, 1311 flow. Second operand has 8 states, 8 states have (on average 68.5) internal successors, (548), 8 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 05:46:11,399 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 05:46:11,399 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 85 [2021-08-13 05:46:11,399 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 05:46:11,673 INFO L129 PetriNetUnfolder]: 527/1356 cut-off events. [2021-08-13 05:46:11,673 INFO L130 PetriNetUnfolder]: For 733/1911 co-relation queries the response was YES. [2021-08-13 05:46:11,677 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4327 conditions, 1356 events. 527/1356 cut-off events. For 733/1911 co-relation queries the response was YES. Maximal size of possible extension queue 170. Compared 10453 event pairs, 5 based on Foata normal form. 9/1355 useless extension candidates. Maximal degree in co-relation 4277. Up to 317 conditions per place. [2021-08-13 05:46:11,679 INFO L132 encePairwiseOnDemand]: 75/85 looper letters, 8 selfloop transitions, 6 changer transitions 455/523 dead transitions. [2021-08-13 05:46:11,679 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 523 transitions, 4391 flow [2021-08-13 05:46:11,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-08-13 05:46:11,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-08-13 05:46:11,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 997 transitions. [2021-08-13 05:46:11,681 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8378151260504202 [2021-08-13 05:46:11,681 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 997 transitions. [2021-08-13 05:46:11,681 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 997 transitions. [2021-08-13 05:46:11,681 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 05:46:11,681 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 997 transitions. [2021-08-13 05:46:11,683 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 71.21428571428571) internal successors, (997), 14 states have internal predecessors, (997), 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) [2021-08-13 05:46:11,684 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 85.0) internal successors, (1275), 15 states have internal predecessors, (1275), 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) [2021-08-13 05:46:11,684 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 85.0) internal successors, (1275), 15 states have internal predecessors, (1275), 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) [2021-08-13 05:46:11,684 INFO L348 CegarLoopForPetriNet]: 79 programPoint places, 49 predicate places. [2021-08-13 05:46:11,684 INFO L482 AbstractCegarLoop]: Abstraction has has 128 places, 523 transitions, 4391 flow [2021-08-13 05:46:11,685 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 68.5) internal successors, (548), 8 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 05:46:11,685 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 05:46:11,685 INFO L266 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] [2021-08-13 05:46:11,685 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-13 05:46:11,685 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 05:46:11,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 05:46:11,685 INFO L82 PathProgramCache]: Analyzing trace with hash -1660463525, now seen corresponding path program 1 times [2021-08-13 05:46:11,686 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 05:46:11,686 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103676482] [2021-08-13 05:46:11,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 05:46:11,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 05:46:11,713 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 05:46:11,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 05:46:11,713 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 05:46:11,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 05:46:11,716 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-08-13 05:46:11,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-08-13 05:46:11,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 05:46:11,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 05:46:11,734 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-08-13 05:46:11,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 05:46:11,740 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 05:46:11,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 05:46:11,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 05:46:11,741 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 05:46:11,741 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103676482] [2021-08-13 05:46:11,741 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103676482] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 05:46:11,741 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 05:46:11,741 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-13 05:46:11,741 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540176388] [2021-08-13 05:46:11,741 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-08-13 05:46:11,741 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 05:46:11,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-13 05:46:11,742 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-13 05:46:11,742 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 85 [2021-08-13 05:46:11,743 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 523 transitions, 4391 flow. Second operand has 6 states, 6 states have (on average 72.16666666666667) internal successors, (433), 6 states have internal predecessors, (433), 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) [2021-08-13 05:46:11,743 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 05:46:11,743 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 85 [2021-08-13 05:46:11,743 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 05:46:12,081 INFO L129 PetriNetUnfolder]: 1133/2727 cut-off events. [2021-08-13 05:46:12,081 INFO L130 PetriNetUnfolder]: For 849/1110 co-relation queries the response was YES. [2021-08-13 05:46:12,089 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7377 conditions, 2727 events. 1133/2727 cut-off events. For 849/1110 co-relation queries the response was YES. Maximal size of possible extension queue 304. Compared 24104 event pairs, 32 based on Foata normal form. 18/2553 useless extension candidates. Maximal degree in co-relation 7324. Up to 609 conditions per place. [2021-08-13 05:46:12,093 INFO L132 encePairwiseOnDemand]: 75/85 looper letters, 10 selfloop transitions, 6 changer transitions 318/412 dead transitions. [2021-08-13 05:46:12,093 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 412 transitions, 3243 flow [2021-08-13 05:46:12,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-13 05:46:12,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-08-13 05:46:12,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 753 transitions. [2021-08-13 05:46:12,095 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8858823529411765 [2021-08-13 05:46:12,095 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 753 transitions. [2021-08-13 05:46:12,096 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 753 transitions. [2021-08-13 05:46:12,097 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 05:46:12,097 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 753 transitions. [2021-08-13 05:46:12,099 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 75.3) internal successors, (753), 10 states have internal predecessors, (753), 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) [2021-08-13 05:46:12,100 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 85.0) internal successors, (935), 11 states have internal predecessors, (935), 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) [2021-08-13 05:46:12,101 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 85.0) internal successors, (935), 11 states have internal predecessors, (935), 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) [2021-08-13 05:46:12,102 INFO L348 CegarLoopForPetriNet]: 79 programPoint places, 58 predicate places. [2021-08-13 05:46:12,102 INFO L482 AbstractCegarLoop]: Abstraction has has 137 places, 412 transitions, 3243 flow [2021-08-13 05:46:12,102 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 72.16666666666667) internal successors, (433), 6 states have internal predecessors, (433), 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) [2021-08-13 05:46:12,102 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 05:46:12,102 INFO L266 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] [2021-08-13 05:46:12,102 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-13 05:46:12,102 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 05:46:12,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 05:46:12,103 INFO L82 PathProgramCache]: Analyzing trace with hash -2039795968, now seen corresponding path program 1 times [2021-08-13 05:46:12,103 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 05:46:12,103 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705830735] [2021-08-13 05:46:12,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 05:46:12,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 05:46:12,156 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 05:46:12,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 05:46:12,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 05:46:12,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 05:46:12,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 05:46:12,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 05:46:12,164 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-08-13 05:46:12,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-08-13 05:46:12,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 05:46:12,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 05:46:12,184 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-08-13 05:46:12,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 05:46:12,191 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 05:46:12,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 05:46:12,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 05:46:12,192 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 05:46:12,192 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705830735] [2021-08-13 05:46:12,192 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [705830735] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 05:46:12,192 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 05:46:12,192 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 05:46:12,193 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584497689] [2021-08-13 05:46:12,193 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-08-13 05:46:12,193 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 05:46:12,196 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-13 05:46:12,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-08-13 05:46:12,197 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 85 [2021-08-13 05:46:12,197 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 412 transitions, 3243 flow. Second operand has 7 states, 7 states have (on average 72.14285714285714) internal successors, (505), 7 states have internal predecessors, (505), 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) [2021-08-13 05:46:12,197 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 05:46:12,198 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 85 [2021-08-13 05:46:12,198 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 05:46:12,530 INFO L129 PetriNetUnfolder]: 784/1922 cut-off events. [2021-08-13 05:46:12,530 INFO L130 PetriNetUnfolder]: For 463/1616 co-relation queries the response was YES. [2021-08-13 05:46:12,536 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5578 conditions, 1922 events. 784/1922 cut-off events. For 463/1616 co-relation queries the response was YES. Maximal size of possible extension queue 301. Compared 16718 event pairs, 5 based on Foata normal form. 225/2007 useless extension candidates. Maximal degree in co-relation 5522. Up to 584 conditions per place. [2021-08-13 05:46:12,539 INFO L132 encePairwiseOnDemand]: 75/85 looper letters, 10 selfloop transitions, 9 changer transitions 184/261 dead transitions. [2021-08-13 05:46:12,539 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 261 transitions, 1805 flow [2021-08-13 05:46:12,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-13 05:46:12,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-08-13 05:46:12,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 980 transitions. [2021-08-13 05:46:12,541 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8868778280542986 [2021-08-13 05:46:12,541 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 980 transitions. [2021-08-13 05:46:12,541 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 980 transitions. [2021-08-13 05:46:12,542 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 05:46:12,542 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 980 transitions. [2021-08-13 05:46:12,543 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 75.38461538461539) internal successors, (980), 13 states have internal predecessors, (980), 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) [2021-08-13 05:46:12,544 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 85.0) internal successors, (1190), 14 states have internal predecessors, (1190), 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) [2021-08-13 05:46:12,544 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 85.0) internal successors, (1190), 14 states have internal predecessors, (1190), 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) [2021-08-13 05:46:12,545 INFO L348 CegarLoopForPetriNet]: 79 programPoint places, 64 predicate places. [2021-08-13 05:46:12,545 INFO L482 AbstractCegarLoop]: Abstraction has has 143 places, 261 transitions, 1805 flow [2021-08-13 05:46:12,545 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 72.14285714285714) internal successors, (505), 7 states have internal predecessors, (505), 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) [2021-08-13 05:46:12,545 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 05:46:12,545 INFO L266 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] [2021-08-13 05:46:12,545 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-13 05:46:12,545 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 05:46:12,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 05:46:12,546 INFO L82 PathProgramCache]: Analyzing trace with hash -2065409947, now seen corresponding path program 1 times [2021-08-13 05:46:12,546 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 05:46:12,546 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929780050] [2021-08-13 05:46:12,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 05:46:12,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 05:46:12,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 05:46:12,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 05:46:12,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 05:46:12,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 05:46:12,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 05:46:12,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 05:46:12,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 05:46:12,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 05:46:12,606 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-08-13 05:46:12,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-08-13 05:46:12,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 05:46:12,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 05:46:12,623 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-08-13 05:46:12,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 05:46:12,630 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 05:46:12,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 05:46:12,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 05:46:12,631 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 05:46:12,631 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929780050] [2021-08-13 05:46:12,631 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929780050] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 05:46:12,631 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 05:46:12,631 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 05:46:12,631 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711422293] [2021-08-13 05:46:12,631 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 05:46:12,631 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 05:46:12,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 05:46:12,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-08-13 05:46:12,632 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 85 [2021-08-13 05:46:12,633 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 261 transitions, 1805 flow. Second operand has 8 states, 8 states have (on average 72.125) internal successors, (577), 8 states have internal predecessors, (577), 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) [2021-08-13 05:46:12,633 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 05:46:12,633 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 85 [2021-08-13 05:46:12,633 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 05:46:13,013 INFO L129 PetriNetUnfolder]: 704/1709 cut-off events. [2021-08-13 05:46:13,014 INFO L130 PetriNetUnfolder]: For 571/2364 co-relation queries the response was YES. [2021-08-13 05:46:13,019 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5939 conditions, 1709 events. 704/1709 cut-off events. For 571/2364 co-relation queries the response was YES. Maximal size of possible extension queue 305. Compared 15055 event pairs, 0 based on Foata normal form. 298/1889 useless extension candidates. Maximal degree in co-relation 5880. Up to 549 conditions per place. [2021-08-13 05:46:13,021 INFO L132 encePairwiseOnDemand]: 75/85 looper letters, 4 selfloop transitions, 12 changer transitions 130/204 dead transitions. [2021-08-13 05:46:13,022 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 204 transitions, 1429 flow [2021-08-13 05:46:13,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-08-13 05:46:13,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-08-13 05:46:13,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1192 transitions. [2021-08-13 05:46:13,024 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8764705882352941 [2021-08-13 05:46:13,024 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1192 transitions. [2021-08-13 05:46:13,024 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1192 transitions. [2021-08-13 05:46:13,024 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 05:46:13,024 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1192 transitions. [2021-08-13 05:46:13,026 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 74.5) internal successors, (1192), 16 states have internal predecessors, (1192), 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) [2021-08-13 05:46:13,027 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 85.0) internal successors, (1445), 17 states have internal predecessors, (1445), 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) [2021-08-13 05:46:13,028 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 85.0) internal successors, (1445), 17 states have internal predecessors, (1445), 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) [2021-08-13 05:46:13,028 INFO L348 CegarLoopForPetriNet]: 79 programPoint places, 55 predicate places. [2021-08-13 05:46:13,028 INFO L482 AbstractCegarLoop]: Abstraction has has 134 places, 204 transitions, 1429 flow [2021-08-13 05:46:13,028 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 72.125) internal successors, (577), 8 states have internal predecessors, (577), 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) [2021-08-13 05:46:13,028 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 05:46:13,028 INFO L266 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] [2021-08-13 05:46:13,028 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-08-13 05:46:13,029 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 05:46:13,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 05:46:13,029 INFO L82 PathProgramCache]: Analyzing trace with hash 1379396260, now seen corresponding path program 1 times [2021-08-13 05:46:13,029 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 05:46:13,029 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845474454] [2021-08-13 05:46:13,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 05:46:13,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 05:46:13,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 05:46:13,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 05:46:13,073 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 05:46:13,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 05:46:13,077 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-08-13 05:46:13,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 05:46:13,083 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 05:46:13,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 05:46:13,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 05:46:13,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 05:46:13,102 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 05:46:13,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 05:46:13,109 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 05:46:13,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 05:46:13,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 05:46:13,110 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 05:46:13,110 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845474454] [2021-08-13 05:46:13,110 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845474454] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 05:46:13,111 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 05:46:13,111 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 05:46:13,111 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414151455] [2021-08-13 05:46:13,111 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-08-13 05:46:13,111 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 05:46:13,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-13 05:46:13,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-08-13 05:46:13,112 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 85 [2021-08-13 05:46:13,113 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 204 transitions, 1429 flow. Second operand has 7 states, 7 states have (on average 69.0) internal successors, (483), 7 states have internal predecessors, (483), 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) [2021-08-13 05:46:13,113 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 05:46:13,113 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 85 [2021-08-13 05:46:13,113 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 05:46:13,352 INFO L129 PetriNetUnfolder]: 1006/2485 cut-off events. [2021-08-13 05:46:13,352 INFO L130 PetriNetUnfolder]: For 1025/1960 co-relation queries the response was YES. [2021-08-13 05:46:13,359 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8700 conditions, 2485 events. 1006/2485 cut-off events. For 1025/1960 co-relation queries the response was YES. Maximal size of possible extension queue 427. Compared 23907 event pairs, 0 based on Foata normal form. 18/2312 useless extension candidates. Maximal degree in co-relation 8635. Up to 801 conditions per place. [2021-08-13 05:46:13,362 INFO L132 encePairwiseOnDemand]: 74/85 looper letters, 0 selfloop transitions, 0 changer transitions 227/227 dead transitions. [2021-08-13 05:46:13,362 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 227 transitions, 1787 flow [2021-08-13 05:46:13,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 05:46:13,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 05:46:13,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 562 transitions. [2021-08-13 05:46:13,363 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8264705882352941 [2021-08-13 05:46:13,363 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 562 transitions. [2021-08-13 05:46:13,363 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 562 transitions. [2021-08-13 05:46:13,363 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 05:46:13,364 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 562 transitions. [2021-08-13 05:46:13,365 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 70.25) internal successors, (562), 8 states have internal predecessors, (562), 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) [2021-08-13 05:46:13,366 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 85.0) internal successors, (765), 9 states have internal predecessors, (765), 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) [2021-08-13 05:46:13,366 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 85.0) internal successors, (765), 9 states have internal predecessors, (765), 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) [2021-08-13 05:46:13,367 INFO L348 CegarLoopForPetriNet]: 79 programPoint places, 60 predicate places. [2021-08-13 05:46:13,367 INFO L482 AbstractCegarLoop]: Abstraction has has 139 places, 227 transitions, 1787 flow [2021-08-13 05:46:13,367 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 69.0) internal successors, (483), 7 states have internal predecessors, (483), 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) [2021-08-13 05:46:13,367 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown