/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.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/thin002_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2cf4d3f9dd5fed411db405f577e28237a543b59a-2cf4d3f [2021-08-13 01:56:41,325 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-13 01:56:41,326 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-13 01:56:41,348 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-08-13 01:56:41,355 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-13 01:56:41,356 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-13 01:56:41,356 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-13 01:56:41,357 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-13 01:56:41,358 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-13 01:56:41,359 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-13 01:56:41,360 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-13 01:56:41,362 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-13 01:56:41,363 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-13 01:56:41,374 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-13 01:56:41,375 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-13 01:56:41,376 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-13 01:56:41,378 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-08-13 01:56:41,383 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-13 01:56:41,384 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-13 01:56:41,386 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-13 01:56:41,390 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.epf [2021-08-13 01:56:41,415 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-13 01:56:41,415 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-13 01:56:41,416 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-13 01:56:41,416 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-13 01:56:41,416 INFO L138 SettingsManager]: * Use SBE=true [2021-08-13 01:56:41,416 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-13 01:56:41,416 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-13 01:56:41,416 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-13 01:56:41,416 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-13 01:56:41,416 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-13 01:56:41,416 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-13 01:56:41,417 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-13 01:56:41,417 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-13 01:56:41,417 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-13 01:56:41,417 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-13 01:56:41,417 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-13 01:56:41,417 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-13 01:56:41,417 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-13 01:56:41,417 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-13 01:56:41,417 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-13 01:56:41,418 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-13 01:56:41,418 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-13 01:56:41,418 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-13 01:56:41,418 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-13 01:56:41,418 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-13 01:56:41,418 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-13 01:56:41,418 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-13 01:56:41,418 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-13 01:56:41,418 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-08-13 01:56:41,418 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-13 01:56:41,419 INFO L138 SettingsManager]: * Compute cosets for OwickiGries annotation iteratively=true [2021-08-13 01:56:41,419 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-13 01:56:41,645 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-13 01:56:41,659 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-13 01:56:41,660 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-13 01:56:41,661 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-13 01:56:41,665 INFO L275 PluginConnector]: CDTParser initialized [2021-08-13 01:56:41,666 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin002_tso.oepc.i [2021-08-13 01:56:41,712 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51af2ebfe/1698b890218f40dfa89ffbf25c846f90/FLAG6d27cdd1b [2021-08-13 01:56:42,143 INFO L306 CDTParser]: Found 1 translation units. [2021-08-13 01:56:42,143 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin002_tso.oepc.i [2021-08-13 01:56:42,157 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51af2ebfe/1698b890218f40dfa89ffbf25c846f90/FLAG6d27cdd1b [2021-08-13 01:56:42,171 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51af2ebfe/1698b890218f40dfa89ffbf25c846f90 [2021-08-13 01:56:42,173 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-13 01:56:42,174 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-13 01:56:42,176 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-13 01:56:42,176 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-13 01:56:42,184 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-13 01:56:42,184 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.08 01:56:42" (1/1) ... [2021-08-13 01:56:42,185 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5612d25e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 01:56:42, skipping insertion in model container [2021-08-13 01:56:42,185 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.08 01:56:42" (1/1) ... [2021-08-13 01:56:42,189 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-13 01:56:42,214 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-13 01:56:42,343 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/thin002_tso.oepc.i[950,963] [2021-08-13 01:56:42,476 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-13 01:56:42,482 INFO L203 MainTranslator]: Completed pre-run [2021-08-13 01:56:42,491 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/thin002_tso.oepc.i[950,963] [2021-08-13 01:56:42,517 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-13 01:56:42,572 INFO L208 MainTranslator]: Completed translation [2021-08-13 01:56:42,573 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 01:56:42 WrapperNode [2021-08-13 01:56:42,573 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-13 01:56:42,574 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-13 01:56:42,574 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-13 01:56:42,574 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-13 01:56:42,578 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 01:56:42" (1/1) ... [2021-08-13 01:56:42,586 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 01:56:42" (1/1) ... [2021-08-13 01:56:42,597 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-13 01:56:42,598 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-13 01:56:42,598 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-13 01:56:42,598 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-13 01:56:42,602 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 01:56:42" (1/1) ... [2021-08-13 01:56:42,602 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 01:56:42" (1/1) ... [2021-08-13 01:56:42,604 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 01:56:42" (1/1) ... [2021-08-13 01:56:42,604 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 01:56:42" (1/1) ... [2021-08-13 01:56:42,607 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 01:56:42" (1/1) ... [2021-08-13 01:56:42,608 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 01:56:42" (1/1) ... [2021-08-13 01:56:42,609 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 01:56:42" (1/1) ... [2021-08-13 01:56:42,611 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-13 01:56:42,612 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-13 01:56:42,612 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-13 01:56:42,612 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-13 01:56:42,612 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 01:56:42" (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 01:56:42,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-13 01:56:42,652 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-08-13 01:56:42,652 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-13 01:56:42,652 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-13 01:56:42,652 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-08-13 01:56:42,652 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-08-13 01:56:42,652 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-08-13 01:56:42,652 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-08-13 01:56:42,652 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-08-13 01:56:42,652 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-08-13 01:56:42,652 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-08-13 01:56:42,652 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-08-13 01:56:42,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-13 01:56:42,653 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-08-13 01:56:42,653 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-13 01:56:42,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-13 01:56:42,654 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 01:56:42,983 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-13 01:56:42,983 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-08-13 01:56:42,985 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.08 01:56:42 BoogieIcfgContainer [2021-08-13 01:56:42,985 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-13 01:56:42,986 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-13 01:56:42,986 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-13 01:56:42,988 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-13 01:56:42,989 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.08 01:56:42" (1/3) ... [2021-08-13 01:56:42,990 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1acc952b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.08 01:56:42, skipping insertion in model container [2021-08-13 01:56:42,990 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 01:56:42" (2/3) ... [2021-08-13 01:56:42,990 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1acc952b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.08 01:56:42, skipping insertion in model container [2021-08-13 01:56:42,990 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.08 01:56:42" (3/3) ... [2021-08-13 01:56:42,991 INFO L111 eAbstractionObserver]: Analyzing ICFG thin002_tso.oepc.i [2021-08-13 01:56:42,996 INFO L206 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-13 01:56:42,996 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-13 01:56:42,997 INFO L445 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-13 01:56:43,029 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:43,030 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:43,030 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:43,030 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:43,030 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:43,030 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:43,031 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:43,031 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:43,031 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:43,031 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:43,031 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:43,031 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:43,032 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:43,032 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:43,032 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:43,032 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:43,033 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:43,033 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:43,033 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:43,033 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:43,034 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:43,035 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:43,035 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:43,035 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:43,035 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:43,035 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:43,036 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:43,036 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:43,036 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:43,036 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:43,036 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:43,036 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:43,037 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:43,037 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:43,037 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:43,037 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:43,038 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:43,038 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:43,039 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:43,039 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:43,040 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:43,040 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:43,040 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:43,040 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:43,040 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:43,040 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:43,040 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:43,040 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:43,042 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:43,042 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:43,042 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:43,042 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:43,046 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:43,046 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:43,046 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:43,046 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:43,048 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:43,048 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:43,048 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:43,048 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:43,050 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:43,051 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:43,051 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:43,051 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:43,053 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-08-13 01:56:43,069 INFO L255 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-08-13 01:56:43,092 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-08-13 01:56:43,092 INFO L379 AbstractCegarLoop]: Hoare is false [2021-08-13 01:56:43,092 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-08-13 01:56:43,092 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-13 01:56:43,093 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-13 01:56:43,093 INFO L383 AbstractCegarLoop]: Difference is false [2021-08-13 01:56:43,093 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-13 01:56:43,093 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-08-13 01:56:43,103 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 114 places, 103 transitions, 226 flow [2021-08-13 01:56:43,152 INFO L129 PetriNetUnfolder]: 2/99 cut-off events. [2021-08-13 01:56:43,152 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-08-13 01:56:43,161 INFO L84 FinitePrefix]: Finished finitePrefix Result has 112 conditions, 99 events. 2/99 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 55 event pairs, 0 based on Foata normal form. 0/96 useless extension candidates. Maximal degree in co-relation 80. Up to 2 conditions per place. [2021-08-13 01:56:43,161 INFO L82 GeneralOperation]: Start removeDead. Operand has 114 places, 103 transitions, 226 flow [2021-08-13 01:56:43,175 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 97 places, 85 transitions, 182 flow [2021-08-13 01:56:43,188 INFO L129 PetriNetUnfolder]: 1/84 cut-off events. [2021-08-13 01:56:43,188 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-08-13 01:56:43,192 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 01:56:43,193 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 01:56:43,193 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 01:56:43,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 01:56:43,197 INFO L82 PathProgramCache]: Analyzing trace with hash -190192830, now seen corresponding path program 1 times [2021-08-13 01:56:43,203 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 01:56:43,203 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979343226] [2021-08-13 01:56:43,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 01:56:43,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 01:56:43,480 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:56:43,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 01:56:43,488 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-08-13 01:56:43,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-13 01:56:43,533 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 01:56:43,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 01:56:43,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:56:43,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 01:56:43,557 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:56:43,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 01:56:43,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:56:43,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 01:56:43,567 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 01:56:43,568 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 01:56:43,568 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979343226] [2021-08-13 01:56:43,568 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979343226] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 01:56:43,568 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 01:56:43,569 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-13 01:56:43,569 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985681551] [2021-08-13 01:56:43,574 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-08-13 01:56:43,575 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 01:56:43,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-13 01:56:43,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-13 01:56:43,586 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 103 [2021-08-13 01:56:43,588 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 85 transitions, 182 flow. Second operand has 6 states, 6 states have (on average 86.66666666666667) internal successors, (520), 6 states have internal predecessors, (520), 0 states have call successors, (0), 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 01:56:43,589 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 01:56:43,589 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 103 [2021-08-13 01:56:43,590 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 01:56:43,915 INFO L129 PetriNetUnfolder]: 270/717 cut-off events. [2021-08-13 01:56:43,915 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-08-13 01:56:43,920 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1160 conditions, 717 events. 270/717 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 4251 event pairs, 99 based on Foata normal form. 19/714 useless extension candidates. Maximal degree in co-relation 1122. Up to 248 conditions per place. [2021-08-13 01:56:43,923 INFO L132 encePairwiseOnDemand]: 93/103 looper letters, 13 selfloop transitions, 5 changer transitions 31/119 dead transitions. [2021-08-13 01:56:43,923 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 119 transitions, 348 flow [2021-08-13 01:56:43,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-13 01:56:43,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-08-13 01:56:43,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 818 transitions. [2021-08-13 01:56:43,938 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8824163969795038 [2021-08-13 01:56:43,938 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 818 transitions. [2021-08-13 01:56:43,938 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 818 transitions. [2021-08-13 01:56:43,941 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 01:56:43,942 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 818 transitions. [2021-08-13 01:56:43,947 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 90.88888888888889) internal successors, (818), 9 states have internal predecessors, (818), 0 states have call successors, (0), 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 01:56:43,952 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 103.0) internal successors, (1030), 10 states have internal predecessors, (1030), 0 states have call successors, (0), 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 01:56:43,953 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 103.0) internal successors, (1030), 10 states have internal predecessors, (1030), 0 states have call successors, (0), 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 01:56:43,953 INFO L348 CegarLoopForPetriNet]: 97 programPoint places, 8 predicate places. [2021-08-13 01:56:43,954 INFO L482 AbstractCegarLoop]: Abstraction has has 105 places, 119 transitions, 348 flow [2021-08-13 01:56:43,954 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 86.66666666666667) internal successors, (520), 6 states have internal predecessors, (520), 0 states have call successors, (0), 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 01:56:43,954 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 01:56:43,954 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] [2021-08-13 01:56:43,954 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-13 01:56:43,954 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 01:56:43,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 01:56:43,955 INFO L82 PathProgramCache]: Analyzing trace with hash -1301676157, now seen corresponding path program 1 times [2021-08-13 01:56:43,956 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 01:56:43,956 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759400302] [2021-08-13 01:56:43,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 01:56:43,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 01:56:44,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:56:44,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 01:56:44,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:56:44,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 01:56:44,024 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-08-13 01:56:44,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-13 01:56:44,032 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 01:56:44,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 01:56:44,044 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:56:44,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 01:56:44,051 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:56:44,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 01:56:44,062 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:56:44,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 01:56:44,064 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 01:56:44,064 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 01:56:44,065 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759400302] [2021-08-13 01:56:44,065 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759400302] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 01:56:44,065 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 01:56:44,065 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 01:56:44,065 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473595851] [2021-08-13 01:56:44,066 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-08-13 01:56:44,066 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 01:56:44,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-13 01:56:44,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-08-13 01:56:44,068 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 103 [2021-08-13 01:56:44,069 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 119 transitions, 348 flow. Second operand has 7 states, 7 states have (on average 86.57142857142857) internal successors, (606), 7 states have internal predecessors, (606), 0 states have call successors, (0), 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 01:56:44,069 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 01:56:44,069 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 103 [2021-08-13 01:56:44,069 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 01:56:44,260 INFO L129 PetriNetUnfolder]: 283/784 cut-off events. [2021-08-13 01:56:44,260 INFO L130 PetriNetUnfolder]: For 32/312 co-relation queries the response was YES. [2021-08-13 01:56:44,262 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1725 conditions, 784 events. 283/784 cut-off events. For 32/312 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 4875 event pairs, 9 based on Foata normal form. 15/778 useless extension candidates. Maximal degree in co-relation 1681. Up to 282 conditions per place. [2021-08-13 01:56:44,264 INFO L132 encePairwiseOnDemand]: 96/103 looper letters, 17 selfloop transitions, 4 changer transitions 71/162 dead transitions. [2021-08-13 01:56:44,264 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 162 transitions, 704 flow [2021-08-13 01:56:44,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-13 01:56:44,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-08-13 01:56:44,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 897 transitions. [2021-08-13 01:56:44,266 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.870873786407767 [2021-08-13 01:56:44,266 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 897 transitions. [2021-08-13 01:56:44,266 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 897 transitions. [2021-08-13 01:56:44,267 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 01:56:44,267 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 897 transitions. [2021-08-13 01:56:44,268 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 89.7) internal successors, (897), 10 states have internal predecessors, (897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 01:56:44,270 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 103.0) internal successors, (1133), 11 states have internal predecessors, (1133), 0 states have call successors, (0), 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 01:56:44,270 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 103.0) internal successors, (1133), 11 states have internal predecessors, (1133), 0 states have call successors, (0), 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 01:56:44,270 INFO L348 CegarLoopForPetriNet]: 97 programPoint places, 17 predicate places. [2021-08-13 01:56:44,271 INFO L482 AbstractCegarLoop]: Abstraction has has 114 places, 162 transitions, 704 flow [2021-08-13 01:56:44,271 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 86.57142857142857) internal successors, (606), 7 states have internal predecessors, (606), 0 states have call successors, (0), 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 01:56:44,271 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 01:56:44,271 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] [2021-08-13 01:56:44,271 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-13 01:56:44,271 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 01:56:44,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 01:56:44,272 INFO L82 PathProgramCache]: Analyzing trace with hash 2060956577, now seen corresponding path program 1 times [2021-08-13 01:56:44,272 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 01:56:44,272 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397946007] [2021-08-13 01:56:44,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 01:56:44,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 01:56:44,344 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:56:44,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 01:56:44,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:56:44,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 01:56:44,350 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-08-13 01:56:44,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-13 01:56:44,365 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 01:56:44,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 01:56:44,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:56:44,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 01:56:44,390 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:56:44,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 01:56:44,398 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:56:44,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 01:56:44,399 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 01:56:44,400 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 01:56:44,400 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397946007] [2021-08-13 01:56:44,402 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397946007] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 01:56:44,402 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 01:56:44,402 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 01:56:44,402 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564914897] [2021-08-13 01:56:44,406 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-08-13 01:56:44,406 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 01:56:44,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-13 01:56:44,407 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-08-13 01:56:44,408 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 103 [2021-08-13 01:56:44,409 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 162 transitions, 704 flow. Second operand has 7 states, 7 states have (on average 84.71428571428571) internal successors, (593), 7 states have internal predecessors, (593), 0 states have call successors, (0), 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 01:56:44,409 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 01:56:44,409 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 103 [2021-08-13 01:56:44,409 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 01:56:44,799 INFO L129 PetriNetUnfolder]: 700/1764 cut-off events. [2021-08-13 01:56:44,799 INFO L130 PetriNetUnfolder]: For 522/2459 co-relation queries the response was YES. [2021-08-13 01:56:44,804 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4907 conditions, 1764 events. 700/1764 cut-off events. For 522/2459 co-relation queries the response was YES. Maximal size of possible extension queue 179. Compared 13500 event pairs, 2 based on Foata normal form. 35/1763 useless extension candidates. Maximal degree in co-relation 4856. Up to 652 conditions per place. [2021-08-13 01:56:44,808 INFO L132 encePairwiseOnDemand]: 92/103 looper letters, 26 selfloop transitions, 13 changer transitions 206/313 dead transitions. [2021-08-13 01:56:44,808 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 313 transitions, 2072 flow [2021-08-13 01:56:44,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-08-13 01:56:44,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-08-13 01:56:44,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1511 transitions. [2021-08-13 01:56:44,811 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8629354654483152 [2021-08-13 01:56:44,811 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1511 transitions. [2021-08-13 01:56:44,811 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1511 transitions. [2021-08-13 01:56:44,812 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 01:56:44,812 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1511 transitions. [2021-08-13 01:56:44,815 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 88.88235294117646) internal successors, (1511), 17 states have internal predecessors, (1511), 0 states have call successors, (0), 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 01:56:44,817 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 103.0) internal successors, (1854), 18 states have internal predecessors, (1854), 0 states have call successors, (0), 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 01:56:44,817 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 103.0) internal successors, (1854), 18 states have internal predecessors, (1854), 0 states have call successors, (0), 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 01:56:44,818 INFO L348 CegarLoopForPetriNet]: 97 programPoint places, 33 predicate places. [2021-08-13 01:56:44,818 INFO L482 AbstractCegarLoop]: Abstraction has has 130 places, 313 transitions, 2072 flow [2021-08-13 01:56:44,818 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 84.71428571428571) internal successors, (593), 7 states have internal predecessors, (593), 0 states have call successors, (0), 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 01:56:44,818 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 01:56:44,818 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, 1] [2021-08-13 01:56:44,818 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-13 01:56:44,818 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 01:56:44,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 01:56:44,819 INFO L82 PathProgramCache]: Analyzing trace with hash -1130254252, now seen corresponding path program 1 times [2021-08-13 01:56:44,819 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 01:56:44,819 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19335377] [2021-08-13 01:56:44,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 01:56:44,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 01:56:44,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:56:44,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 01:56:44,885 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:56:44,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 01:56:44,888 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-08-13 01:56:44,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-13 01:56:44,895 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 01:56:44,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 01:56:44,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:56:44,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 01:56:44,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:56:44,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 01:56:44,920 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:56:44,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 01:56:44,920 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 01:56:44,920 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 01:56:44,920 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19335377] [2021-08-13 01:56:44,921 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [19335377] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 01:56:44,921 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 01:56:44,921 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 01:56:44,921 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207830674] [2021-08-13 01:56:44,921 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-08-13 01:56:44,921 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 01:56:44,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-13 01:56:44,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-08-13 01:56:44,922 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 103 [2021-08-13 01:56:44,923 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 313 transitions, 2072 flow. Second operand has 7 states, 7 states have (on average 84.85714285714286) internal successors, (594), 7 states have internal predecessors, (594), 0 states have call successors, (0), 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 01:56:44,923 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 01:56:44,923 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 103 [2021-08-13 01:56:44,923 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 01:56:45,590 INFO L129 PetriNetUnfolder]: 1978/4754 cut-off events. [2021-08-13 01:56:45,590 INFO L130 PetriNetUnfolder]: For 4421/11854 co-relation queries the response was YES. [2021-08-13 01:56:45,605 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15134 conditions, 4754 events. 1978/4754 cut-off events. For 4421/11854 co-relation queries the response was YES. Maximal size of possible extension queue 475. Compared 44062 event pairs, 0 based on Foata normal form. 36/4732 useless extension candidates. Maximal degree in co-relation 15076. Up to 1740 conditions per place. [2021-08-13 01:56:45,615 INFO L132 encePairwiseOnDemand]: 92/103 looper letters, 62 selfloop transitions, 24 changer transitions 634/789 dead transitions. [2021-08-13 01:56:45,615 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 789 transitions, 7266 flow [2021-08-13 01:56:45,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-08-13 01:56:45,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-08-13 01:56:45,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1513 transitions. [2021-08-13 01:56:45,619 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8640776699029126 [2021-08-13 01:56:45,619 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1513 transitions. [2021-08-13 01:56:45,619 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1513 transitions. [2021-08-13 01:56:45,619 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 01:56:45,619 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1513 transitions. [2021-08-13 01:56:45,623 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 89.0) internal successors, (1513), 17 states have internal predecessors, (1513), 0 states have call successors, (0), 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 01:56:45,625 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 103.0) internal successors, (1854), 18 states have internal predecessors, (1854), 0 states have call successors, (0), 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 01:56:45,626 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 103.0) internal successors, (1854), 18 states have internal predecessors, (1854), 0 states have call successors, (0), 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 01:56:45,626 INFO L348 CegarLoopForPetriNet]: 97 programPoint places, 49 predicate places. [2021-08-13 01:56:45,626 INFO L482 AbstractCegarLoop]: Abstraction has has 146 places, 789 transitions, 7266 flow [2021-08-13 01:56:45,626 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 84.85714285714286) internal successors, (594), 7 states have internal predecessors, (594), 0 states have call successors, (0), 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 01:56:45,626 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 01:56:45,627 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, 1] [2021-08-13 01:56:45,627 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-13 01:56:45,627 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 01:56:45,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 01:56:45,627 INFO L82 PathProgramCache]: Analyzing trace with hash 1195000452, now seen corresponding path program 1 times [2021-08-13 01:56:45,627 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 01:56:45,627 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486997426] [2021-08-13 01:56:45,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 01:56:45,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 01:56:45,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:56:45,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 01:56:45,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:56:45,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 01:56:45,735 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-08-13 01:56:45,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-13 01:56:45,743 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 01:56:45,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 01:56:45,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:56:45,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 01:56:45,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:56:45,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 01:56:45,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:56:45,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 01:56:45,779 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 01:56:45,779 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 01:56:45,779 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486997426] [2021-08-13 01:56:45,779 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486997426] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 01:56:45,779 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 01:56:45,779 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 01:56:45,779 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706827251] [2021-08-13 01:56:45,780 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-08-13 01:56:45,781 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 01:56:45,781 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-13 01:56:45,781 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-08-13 01:56:45,782 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 103 [2021-08-13 01:56:45,784 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 789 transitions, 7266 flow. Second operand has 7 states, 7 states have (on average 86.71428571428571) internal successors, (607), 7 states have internal predecessors, (607), 0 states have call successors, (0), 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 01:56:45,784 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 01:56:45,784 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 103 [2021-08-13 01:56:45,784 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 01:56:46,378 INFO L129 PetriNetUnfolder]: 2087/5149 cut-off events. [2021-08-13 01:56:46,379 INFO L130 PetriNetUnfolder]: For 9035/22568 co-relation queries the response was YES. [2021-08-13 01:56:46,394 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18759 conditions, 5149 events. 2087/5149 cut-off events. For 9035/22568 co-relation queries the response was YES. Maximal size of possible extension queue 554. Compared 49981 event pairs, 0 based on Foata normal form. 43/5146 useless extension candidates. Maximal degree in co-relation 18695. Up to 1893 conditions per place. [2021-08-13 01:56:46,403 INFO L132 encePairwiseOnDemand]: 97/103 looper letters, 72 selfloop transitions, 12 changer transitions 1037/1193 dead transitions. [2021-08-13 01:56:46,403 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 1193 transitions, 13524 flow [2021-08-13 01:56:46,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-13 01:56:46,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-08-13 01:56:46,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 812 transitions. [2021-08-13 01:56:46,405 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8759439050701187 [2021-08-13 01:56:46,405 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 812 transitions. [2021-08-13 01:56:46,405 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 812 transitions. [2021-08-13 01:56:46,406 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 01:56:46,406 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 812 transitions. [2021-08-13 01:56:46,407 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 90.22222222222223) internal successors, (812), 9 states have internal predecessors, (812), 0 states have call successors, (0), 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 01:56:46,408 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 103.0) internal successors, (1030), 10 states have internal predecessors, (1030), 0 states have call successors, (0), 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 01:56:46,409 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 103.0) internal successors, (1030), 10 states have internal predecessors, (1030), 0 states have call successors, (0), 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 01:56:46,409 INFO L348 CegarLoopForPetriNet]: 97 programPoint places, 57 predicate places. [2021-08-13 01:56:46,409 INFO L482 AbstractCegarLoop]: Abstraction has has 154 places, 1193 transitions, 13524 flow [2021-08-13 01:56:46,409 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 86.71428571428571) internal successors, (607), 7 states have internal predecessors, (607), 0 states have call successors, (0), 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 01:56:46,409 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 01:56:46,409 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, 1, 1] [2021-08-13 01:56:46,409 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-13 01:56:46,409 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 01:56:46,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 01:56:46,410 INFO L82 PathProgramCache]: Analyzing trace with hash -1360759914, now seen corresponding path program 1 times [2021-08-13 01:56:46,410 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 01:56:46,410 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104333992] [2021-08-13 01:56:46,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 01:56:46,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 01:56:46,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:56:46,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 01:56:46,441 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:56:46,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 01:56:46,444 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-08-13 01:56:46,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-13 01:56:46,451 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 01:56:46,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 01:56:46,464 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:56:46,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 01:56:46,470 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:56:46,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 01:56:46,478 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:56:46,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 01:56:46,479 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 01:56:46,479 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 01:56:46,479 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104333992] [2021-08-13 01:56:46,480 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104333992] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 01:56:46,480 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 01:56:46,480 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 01:56:46,480 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719400711] [2021-08-13 01:56:46,480 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-08-13 01:56:46,480 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 01:56:46,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-13 01:56:46,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-08-13 01:56:46,482 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 103 [2021-08-13 01:56:46,482 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 1193 transitions, 13524 flow. Second operand has 7 states, 7 states have (on average 86.71428571428571) internal successors, (607), 7 states have internal predecessors, (607), 0 states have call successors, (0), 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 01:56:46,482 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 01:56:46,482 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 103 [2021-08-13 01:56:46,483 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 01:56:47,400 INFO L129 PetriNetUnfolder]: 2447/6380 cut-off events. [2021-08-13 01:56:47,401 INFO L130 PetriNetUnfolder]: For 15051/41027 co-relation queries the response was YES. [2021-08-13 01:56:47,419 INFO L84 FinitePrefix]: Finished finitePrefix Result has 25498 conditions, 6380 events. 2447/6380 cut-off events. For 15051/41027 co-relation queries the response was YES. Maximal size of possible extension queue 732. Compared 67671 event pairs, 0 based on Foata normal form. 29/6379 useless extension candidates. Maximal degree in co-relation 25428. Up to 2338 conditions per place. [2021-08-13 01:56:47,432 INFO L132 encePairwiseOnDemand]: 96/103 looper letters, 84 selfloop transitions, 16 changer transitions 1719/1891 dead transitions. [2021-08-13 01:56:47,432 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 1891 transitions, 25514 flow [2021-08-13 01:56:47,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-13 01:56:47,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-08-13 01:56:47,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 897 transitions. [2021-08-13 01:56:47,436 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.870873786407767 [2021-08-13 01:56:47,436 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 897 transitions. [2021-08-13 01:56:47,436 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 897 transitions. [2021-08-13 01:56:47,436 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 01:56:47,436 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 897 transitions. [2021-08-13 01:56:47,438 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 89.7) internal successors, (897), 10 states have internal predecessors, (897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 01:56:47,439 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 103.0) internal successors, (1133), 11 states have internal predecessors, (1133), 0 states have call successors, (0), 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 01:56:47,439 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 103.0) internal successors, (1133), 11 states have internal predecessors, (1133), 0 states have call successors, (0), 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 01:56:47,439 INFO L348 CegarLoopForPetriNet]: 97 programPoint places, 66 predicate places. [2021-08-13 01:56:47,439 INFO L482 AbstractCegarLoop]: Abstraction has has 163 places, 1891 transitions, 25514 flow [2021-08-13 01:56:47,440 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 86.71428571428571) internal successors, (607), 7 states have internal predecessors, (607), 0 states have call successors, (0), 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 01:56:47,440 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 01:56:47,440 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, 1, 1, 1] [2021-08-13 01:56:47,440 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-13 01:56:47,440 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 01:56:47,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 01:56:47,440 INFO L82 PathProgramCache]: Analyzing trace with hash 478491107, now seen corresponding path program 1 times [2021-08-13 01:56:47,440 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 01:56:47,441 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567776658] [2021-08-13 01:56:47,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 01:56:47,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 01:56:47,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:56:47,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 01:56:47,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:56:47,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 01:56:47,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:56:47,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 01:56:47,540 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-08-13 01:56:47,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-13 01:56:47,551 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 01:56:47,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 01:56:47,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:56:47,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 01:56:47,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:56:47,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 01:56:47,578 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:56:47,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 01:56:47,578 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 01:56:47,579 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 01:56:47,579 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567776658] [2021-08-13 01:56:47,579 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567776658] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 01:56:47,579 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 01:56:47,579 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 01:56:47,579 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623208389] [2021-08-13 01:56:47,579 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 01:56:47,580 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 01:56:47,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 01:56:47,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-08-13 01:56:47,581 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 103 [2021-08-13 01:56:47,581 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 1891 transitions, 25514 flow. Second operand has 8 states, 8 states have (on average 84.75) internal successors, (678), 8 states have internal predecessors, (678), 0 states have call successors, (0), 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 01:56:47,581 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 01:56:47,581 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 103 [2021-08-13 01:56:47,581 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 01:56:49,102 INFO L129 PetriNetUnfolder]: 2516/6586 cut-off events. [2021-08-13 01:56:49,102 INFO L130 PetriNetUnfolder]: For 18549/82775 co-relation queries the response was YES. [2021-08-13 01:56:49,123 INFO L84 FinitePrefix]: Finished finitePrefix Result has 30173 conditions, 6586 events. 2516/6586 cut-off events. For 18549/82775 co-relation queries the response was YES. Maximal size of possible extension queue 784. Compared 70354 event pairs, 0 based on Foata normal form. 146/6702 useless extension candidates. Maximal degree in co-relation 30096. Up to 2432 conditions per place. [2021-08-13 01:56:49,132 INFO L132 encePairwiseOnDemand]: 95/103 looper letters, 41 selfloop transitions, 9 changer transitions 1881/2000 dead transitions. [2021-08-13 01:56:49,132 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 2000 transitions, 30830 flow [2021-08-13 01:56:49,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-13 01:56:49,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-08-13 01:56:49,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1143 transitions. [2021-08-13 01:56:49,134 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8536221060492906 [2021-08-13 01:56:49,134 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1143 transitions. [2021-08-13 01:56:49,134 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1143 transitions. [2021-08-13 01:56:49,135 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 01:56:49,135 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1143 transitions. [2021-08-13 01:56:49,137 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 87.92307692307692) internal successors, (1143), 13 states have internal predecessors, (1143), 0 states have call successors, (0), 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 01:56:49,138 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 103.0) internal successors, (1442), 14 states have internal predecessors, (1442), 0 states have call successors, (0), 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 01:56:49,139 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 103.0) internal successors, (1442), 14 states have internal predecessors, (1442), 0 states have call successors, (0), 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 01:56:49,139 INFO L348 CegarLoopForPetriNet]: 97 programPoint places, 78 predicate places. [2021-08-13 01:56:49,139 INFO L482 AbstractCegarLoop]: Abstraction has has 175 places, 2000 transitions, 30830 flow [2021-08-13 01:56:49,139 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 84.75) internal successors, (678), 8 states have internal predecessors, (678), 0 states have call successors, (0), 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 01:56:49,139 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 01:56:49,139 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, 1, 1, 1, 1] [2021-08-13 01:56:49,139 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-08-13 01:56:49,139 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 01:56:49,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 01:56:49,140 INFO L82 PathProgramCache]: Analyzing trace with hash -851656355, now seen corresponding path program 1 times [2021-08-13 01:56:49,140 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 01:56:49,140 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625495740] [2021-08-13 01:56:49,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 01:56:49,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 01:56:49,166 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:56:49,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 01:56:49,167 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:56:49,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 01:56:49,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:56:49,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 01:56:49,172 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-08-13 01:56:49,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-13 01:56:49,180 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 01:56:49,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 01:56:49,193 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:56:49,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 01:56:49,200 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:56:49,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 01:56:49,207 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:56:49,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 01:56:49,208 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 01:56:49,208 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 01:56:49,208 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625495740] [2021-08-13 01:56:49,208 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625495740] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 01:56:49,208 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 01:56:49,208 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 01:56:49,208 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709042222] [2021-08-13 01:56:49,209 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 01:56:49,209 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 01:56:49,209 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 01:56:49,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-08-13 01:56:49,209 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 103 [2021-08-13 01:56:49,210 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 175 places, 2000 transitions, 30830 flow. Second operand has 8 states, 8 states have (on average 84.75) internal successors, (678), 8 states have internal predecessors, (678), 0 states have call successors, (0), 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 01:56:49,210 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 01:56:49,210 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 103 [2021-08-13 01:56:49,210 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 01:56:52,247 INFO L129 PetriNetUnfolder]: 5371/12351 cut-off events. [2021-08-13 01:56:52,247 INFO L130 PetriNetUnfolder]: For 48267/180309 co-relation queries the response was YES. [2021-08-13 01:56:52,287 INFO L84 FinitePrefix]: Finished finitePrefix Result has 61983 conditions, 12351 events. 5371/12351 cut-off events. For 48267/180309 co-relation queries the response was YES. Maximal size of possible extension queue 1383. Compared 134242 event pairs, 0 based on Foata normal form. 68/12387 useless extension candidates. Maximal degree in co-relation 61899. Up to 4494 conditions per place. [2021-08-13 01:56:52,302 INFO L132 encePairwiseOnDemand]: 94/103 looper letters, 30 selfloop transitions, 10 changer transitions 4106/4215 dead transitions. [2021-08-13 01:56:52,302 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 4215 transitions, 74482 flow [2021-08-13 01:56:52,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-08-13 01:56:52,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-08-13 01:56:52,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1226 transitions. [2021-08-13 01:56:52,305 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8502080443828016 [2021-08-13 01:56:52,305 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1226 transitions. [2021-08-13 01:56:52,305 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1226 transitions. [2021-08-13 01:56:52,305 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 01:56:52,305 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1226 transitions. [2021-08-13 01:56:52,307 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 87.57142857142857) internal successors, (1226), 14 states have internal predecessors, (1226), 0 states have call successors, (0), 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 01:56:52,308 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 103.0) internal successors, (1545), 15 states have internal predecessors, (1545), 0 states have call successors, (0), 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 01:56:52,309 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 103.0) internal successors, (1545), 15 states have internal predecessors, (1545), 0 states have call successors, (0), 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 01:56:52,309 INFO L348 CegarLoopForPetriNet]: 97 programPoint places, 91 predicate places. [2021-08-13 01:56:52,309 INFO L482 AbstractCegarLoop]: Abstraction has has 188 places, 4215 transitions, 74482 flow [2021-08-13 01:56:52,309 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 84.75) internal successors, (678), 8 states have internal predecessors, (678), 0 states have call successors, (0), 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 01:56:52,309 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 01:56:52,309 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, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 01:56:52,309 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-08-13 01:56:52,309 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 01:56:52,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 01:56:52,310 INFO L82 PathProgramCache]: Analyzing trace with hash 1479937298, now seen corresponding path program 1 times [2021-08-13 01:56:52,310 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 01:56:52,310 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113821359] [2021-08-13 01:56:52,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 01:56:52,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 01:56:52,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:56:52,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 01:56:52,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:56:52,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 01:56:52,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:56:52,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 01:56:52,347 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-08-13 01:56:52,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-13 01:56:52,355 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 01:56:52,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 01:56:52,369 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:56:52,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 01:56:52,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:56:52,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 01:56:52,389 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:56:52,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 01:56:52,389 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 01:56:52,390 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 01:56:52,390 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113821359] [2021-08-13 01:56:52,390 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113821359] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 01:56:52,390 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 01:56:52,390 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 01:56:52,390 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212473929] [2021-08-13 01:56:52,390 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 01:56:52,390 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 01:56:52,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 01:56:52,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-08-13 01:56:52,391 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 103 [2021-08-13 01:56:52,391 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 188 places, 4215 transitions, 74482 flow. Second operand has 8 states, 8 states have (on average 84.875) internal successors, (679), 8 states have internal predecessors, (679), 0 states have call successors, (0), 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 01:56:52,392 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 01:56:52,392 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 103 [2021-08-13 01:56:52,392 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 01:57:08,165 INFO L129 PetriNetUnfolder]: 12688/25332 cut-off events. [2021-08-13 01:57:08,165 INFO L130 PetriNetUnfolder]: For 125074/595868 co-relation queries the response was YES. [2021-08-13 01:57:08,290 INFO L84 FinitePrefix]: Finished finitePrefix Result has 135238 conditions, 25332 events. 12688/25332 cut-off events. For 125074/595868 co-relation queries the response was YES. Maximal size of possible extension queue 2580. Compared 270154 event pairs, 0 based on Foata normal form. 273/25558 useless extension candidates. Maximal degree in co-relation 135147. Up to 8853 conditions per place. [2021-08-13 01:57:08,322 INFO L132 encePairwiseOnDemand]: 94/103 looper letters, 16 selfloop transitions, 5 changer transitions 8381/8469 dead transitions. [2021-08-13 01:57:08,323 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 201 places, 8469 transitions, 167762 flow [2021-08-13 01:57:08,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-08-13 01:57:08,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-08-13 01:57:08,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1226 transitions. [2021-08-13 01:57:08,325 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8502080443828016 [2021-08-13 01:57:08,325 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1226 transitions. [2021-08-13 01:57:08,325 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1226 transitions. [2021-08-13 01:57:08,325 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 01:57:08,325 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1226 transitions. [2021-08-13 01:57:08,327 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 87.57142857142857) internal successors, (1226), 14 states have internal predecessors, (1226), 0 states have call successors, (0), 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 01:57:08,329 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 103.0) internal successors, (1545), 15 states have internal predecessors, (1545), 0 states have call successors, (0), 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 01:57:08,329 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 103.0) internal successors, (1545), 15 states have internal predecessors, (1545), 0 states have call successors, (0), 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 01:57:08,329 INFO L348 CegarLoopForPetriNet]: 97 programPoint places, 104 predicate places. [2021-08-13 01:57:08,330 INFO L482 AbstractCegarLoop]: Abstraction has has 201 places, 8469 transitions, 167762 flow [2021-08-13 01:57:08,330 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 84.875) internal successors, (679), 8 states have internal predecessors, (679), 0 states have call successors, (0), 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 01:57:08,330 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 01:57:08,330 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 01:57:08,330 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-08-13 01:57:08,330 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 01:57:08,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 01:57:08,331 INFO L82 PathProgramCache]: Analyzing trace with hash -1881632904, now seen corresponding path program 1 times [2021-08-13 01:57:08,331 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 01:57:08,331 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709086239] [2021-08-13 01:57:08,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 01:57:08,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 01:57:08,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:57:08,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 01:57:08,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:57:08,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 01:57:08,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:57:08,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 01:57:08,385 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-08-13 01:57:08,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-13 01:57:08,395 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 01:57:08,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 01:57:08,408 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:57:08,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 01:57:08,415 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:57:08,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 01:57:08,423 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:57:08,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 01:57:08,424 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 01:57:08,424 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 01:57:08,424 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709086239] [2021-08-13 01:57:08,424 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709086239] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 01:57:08,424 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 01:57:08,424 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 01:57:08,424 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916583657] [2021-08-13 01:57:08,425 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 01:57:08,425 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 01:57:08,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 01:57:08,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-08-13 01:57:08,426 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 103 [2021-08-13 01:57:08,426 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 201 places, 8469 transitions, 167762 flow. Second operand has 8 states, 8 states have (on average 84.875) internal successors, (679), 8 states have internal predecessors, (679), 0 states have call successors, (0), 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 01:57:08,426 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 01:57:08,426 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 103 [2021-08-13 01:57:08,426 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 01:58:14,753 INFO L129 PetriNetUnfolder]: 14614/27686 cut-off events. [2021-08-13 01:58:14,753 INFO L130 PetriNetUnfolder]: For 178820/1243910 co-relation queries the response was YES. [2021-08-13 01:58:14,883 INFO L84 FinitePrefix]: Finished finitePrefix Result has 167999 conditions, 27686 events. 14614/27686 cut-off events. For 178820/1243910 co-relation queries the response was YES. Maximal size of possible extension queue 2909. Compared 285841 event pairs, 0 based on Foata normal form. 1061/28698 useless extension candidates. Maximal degree in co-relation 167901. Up to 9893 conditions per place. [2021-08-13 01:58:14,922 INFO L132 encePairwiseOnDemand]: 94/103 looper letters, 0 selfloop transitions, 0 changer transitions 9530/9530 dead transitions. [2021-08-13 01:58:14,923 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 212 places, 9530 transitions, 207792 flow [2021-08-13 01:58:14,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-08-13 01:58:14,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-08-13 01:58:14,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1225 transitions. [2021-08-13 01:58:14,925 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8495145631067961 [2021-08-13 01:58:14,925 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1225 transitions. [2021-08-13 01:58:14,925 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1225 transitions. [2021-08-13 01:58:14,926 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 01:58:14,926 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1225 transitions. [2021-08-13 01:58:14,928 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 87.5) internal successors, (1225), 14 states have internal predecessors, (1225), 0 states have call successors, (0), 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 01:58:14,931 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 103.0) internal successors, (1545), 15 states have internal predecessors, (1545), 0 states have call successors, (0), 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 01:58:14,931 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 103.0) internal successors, (1545), 15 states have internal predecessors, (1545), 0 states have call successors, (0), 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 01:58:14,931 INFO L348 CegarLoopForPetriNet]: 97 programPoint places, 115 predicate places. [2021-08-13 01:58:14,932 INFO L482 AbstractCegarLoop]: Abstraction has has 212 places, 9530 transitions, 207792 flow [2021-08-13 01:58:14,932 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 84.875) internal successors, (679), 8 states have internal predecessors, (679), 0 states have call successors, (0), 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 01:58:14,932 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown