/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_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2cf4d3f9dd5fed411db405f577e28237a543b59a-2cf4d3f [2021-08-13 01:56:17,085 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-13 01:56:17,087 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-13 01:56:17,118 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-08-13 01:56:17,135 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-13 01:56:17,136 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-13 01:56:17,137 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-13 01:56:17,138 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-13 01:56:17,140 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-13 01:56:17,141 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-13 01:56:17,143 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-13 01:56:17,149 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-13 01:56:17,150 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-13 01:56:17,151 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-13 01:56:17,151 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-13 01:56:17,153 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-13 01:56:17,158 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-08-13 01:56:17,175 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-13 01:56:17,175 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-13 01:56:17,176 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-13 01:56:17,176 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 01:56:17,202 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-13 01:56:17,203 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-13 01:56:17,205 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-13 01:56:17,205 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-13 01:56:17,205 INFO L138 SettingsManager]: * Use SBE=true [2021-08-13 01:56:17,206 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-13 01:56:17,206 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-13 01:56:17,206 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-13 01:56:17,206 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-13 01:56:17,206 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-13 01:56:17,207 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-13 01:56:17,207 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-13 01:56:17,207 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-13 01:56:17,207 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-13 01:56:17,207 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-13 01:56:17,207 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-13 01:56:17,207 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-13 01:56:17,208 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-13 01:56:17,208 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-13 01:56:17,208 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-13 01:56:17,208 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-13 01:56:17,208 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-13 01:56:17,208 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-13 01:56:17,208 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-13 01:56:17,209 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-13 01:56:17,209 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-13 01:56:17,209 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-13 01:56:17,209 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-13 01:56:17,209 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-08-13 01:56:17,209 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-13 01:56:17,209 INFO L138 SettingsManager]: * Compute cosets for OwickiGries annotation iteratively=true [2021-08-13 01:56:17,209 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-13 01:56:17,446 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-13 01:56:17,465 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-13 01:56:17,466 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-13 01:56:17,467 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-13 01:56:17,468 INFO L275 PluginConnector]: CDTParser initialized [2021-08-13 01:56:17,469 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin002_pso.opt.i [2021-08-13 01:56:17,515 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76405c44d/b693abfeab35470db8e119d53dd888aa/FLAGd72bcdf8c [2021-08-13 01:56:17,894 INFO L306 CDTParser]: Found 1 translation units. [2021-08-13 01:56:17,894 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin002_pso.opt.i [2021-08-13 01:56:17,906 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76405c44d/b693abfeab35470db8e119d53dd888aa/FLAGd72bcdf8c [2021-08-13 01:56:18,263 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76405c44d/b693abfeab35470db8e119d53dd888aa [2021-08-13 01:56:18,265 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-13 01:56:18,266 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-13 01:56:18,267 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-13 01:56:18,267 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-13 01:56:18,269 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-13 01:56:18,270 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.08 01:56:18" (1/1) ... [2021-08-13 01:56:18,270 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56675447 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 01:56:18, skipping insertion in model container [2021-08-13 01:56:18,271 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.08 01:56:18" (1/1) ... [2021-08-13 01:56:18,275 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-13 01:56:18,296 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-13 01:56:18,381 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_pso.opt.i[949,962] [2021-08-13 01:56:18,485 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-13 01:56:18,498 INFO L203 MainTranslator]: Completed pre-run [2021-08-13 01:56:18,510 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_pso.opt.i[949,962] [2021-08-13 01:56:18,547 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-13 01:56:18,600 INFO L208 MainTranslator]: Completed translation [2021-08-13 01:56:18,600 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 01:56:18 WrapperNode [2021-08-13 01:56:18,600 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-13 01:56:18,601 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-13 01:56:18,602 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-13 01:56:18,602 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-13 01:56:18,606 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 01:56:18" (1/1) ... [2021-08-13 01:56:18,619 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 01:56:18" (1/1) ... [2021-08-13 01:56:18,637 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-13 01:56:18,638 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-13 01:56:18,638 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-13 01:56:18,638 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-13 01:56:18,643 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 01:56:18" (1/1) ... [2021-08-13 01:56:18,644 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 01:56:18" (1/1) ... [2021-08-13 01:56:18,655 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 01:56:18" (1/1) ... [2021-08-13 01:56:18,656 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 01:56:18" (1/1) ... [2021-08-13 01:56:18,659 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 01:56:18" (1/1) ... [2021-08-13 01:56:18,660 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 01:56:18" (1/1) ... [2021-08-13 01:56:18,661 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 01:56:18" (1/1) ... [2021-08-13 01:56:18,663 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-13 01:56:18,664 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-13 01:56:18,664 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-13 01:56:18,664 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-13 01:56:18,664 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 01:56:18" (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 01:56:18,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-13 01:56:18,712 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-08-13 01:56:18,712 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-13 01:56:18,712 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-13 01:56:18,712 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-08-13 01:56:18,712 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-08-13 01:56:18,712 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-08-13 01:56:18,712 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-08-13 01:56:18,712 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-08-13 01:56:18,713 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-08-13 01:56:18,713 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-08-13 01:56:18,713 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-08-13 01:56:18,713 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-13 01:56:18,713 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-08-13 01:56:18,713 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-13 01:56:18,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-13 01:56:18,714 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 01:56:19,032 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-13 01:56:19,032 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-08-13 01:56:19,033 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.08 01:56:19 BoogieIcfgContainer [2021-08-13 01:56:19,033 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-13 01:56:19,034 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-13 01:56:19,034 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-13 01:56:19,036 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-13 01:56:19,036 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.08 01:56:18" (1/3) ... [2021-08-13 01:56:19,037 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16947f55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.08 01:56:19, skipping insertion in model container [2021-08-13 01:56:19,037 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 01:56:18" (2/3) ... [2021-08-13 01:56:19,037 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16947f55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.08 01:56:19, skipping insertion in model container [2021-08-13 01:56:19,037 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.08 01:56:19" (3/3) ... [2021-08-13 01:56:19,038 INFO L111 eAbstractionObserver]: Analyzing ICFG thin002_pso.opt.i [2021-08-13 01:56:19,044 INFO L206 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-13 01:56:19,045 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-13 01:56:19,045 INFO L445 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-13 01:56:19,081 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:19,081 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:19,081 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:19,081 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:19,081 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:19,081 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:19,082 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:19,082 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:19,082 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:19,082 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:19,082 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:19,083 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:19,083 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:19,083 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:19,083 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:19,083 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:19,084 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:19,084 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:19,084 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:19,084 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:19,085 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:19,085 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:19,086 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:19,086 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:19,086 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:19,086 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:19,086 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:19,086 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:19,086 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:19,086 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:19,087 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:19,087 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:19,087 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:19,087 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:19,088 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:19,088 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:19,089 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:19,089 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:19,089 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:19,089 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:19,090 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:19,090 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:19,090 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:19,090 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:19,091 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:19,091 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:19,091 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:19,091 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:19,092 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:19,093 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:19,093 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:19,093 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:19,097 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:19,097 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:19,097 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:19,097 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:19,098 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:19,098 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:19,099 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:19,099 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:19,101 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:19,101 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:19,101 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:19,102 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:56:19,103 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-08-13 01:56:19,119 INFO L255 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-08-13 01:56:19,141 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-08-13 01:56:19,141 INFO L379 AbstractCegarLoop]: Hoare is false [2021-08-13 01:56:19,142 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-08-13 01:56:19,142 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-13 01:56:19,142 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-13 01:56:19,142 INFO L383 AbstractCegarLoop]: Difference is false [2021-08-13 01:56:19,142 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-13 01:56:19,142 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-08-13 01:56:19,152 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 114 places, 103 transitions, 226 flow [2021-08-13 01:56:19,200 INFO L129 PetriNetUnfolder]: 2/99 cut-off events. [2021-08-13 01:56:19,200 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-08-13 01:56:19,211 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 01:56:19,211 INFO L82 GeneralOperation]: Start removeDead. Operand has 114 places, 103 transitions, 226 flow [2021-08-13 01:56:19,214 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 97 places, 85 transitions, 182 flow [2021-08-13 01:56:19,227 INFO L129 PetriNetUnfolder]: 1/84 cut-off events. [2021-08-13 01:56:19,227 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-08-13 01:56:19,227 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 01:56:19,228 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 01:56:19,228 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 01:56:19,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 01:56:19,231 INFO L82 PathProgramCache]: Analyzing trace with hash -190192830, now seen corresponding path program 1 times [2021-08-13 01:56:19,236 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 01:56:19,236 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883809536] [2021-08-13 01:56:19,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 01:56:19,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 01:56:19,467 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:56:19,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 01:56:19,469 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:56:19,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 01:56:19,479 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-08-13 01:56:19,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-13 01:56:19,489 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 01:56:19,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 01:56:19,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:56:19,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 01:56:19,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:56:19,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 01:56:19,518 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:56:19,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 01:56:19,520 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 01:56:19,520 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 01:56:19,521 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883809536] [2021-08-13 01:56:19,521 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883809536] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 01:56:19,521 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 01:56:19,521 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 01:56:19,522 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205159923] [2021-08-13 01:56:19,527 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-08-13 01:56:19,527 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 01:56:19,533 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-13 01:56:19,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-08-13 01:56:19,537 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 103 [2021-08-13 01:56:19,540 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 85 transitions, 182 flow. Second operand has 7 states, 7 states have (on average 86.42857142857143) internal successors, (605), 7 states have internal predecessors, (605), 0 states have call successors, (0), 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 01:56:19,540 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 01:56:19,540 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 103 [2021-08-13 01:56:19,541 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 01:56:19,704 INFO L129 PetriNetUnfolder]: 197/562 cut-off events. [2021-08-13 01:56:19,704 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-08-13 01:56:19,706 INFO L84 FinitePrefix]: Finished finitePrefix Result has 897 conditions, 562 events. 197/562 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 2963 event pairs, 47 based on Foata normal form. 19/558 useless extension candidates. Maximal degree in co-relation 859. Up to 121 conditions per place. [2021-08-13 01:56:19,708 INFO L132 encePairwiseOnDemand]: 95/103 looper letters, 14 selfloop transitions, 3 changer transitions 28/115 dead transitions. [2021-08-13 01:56:19,708 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 115 transitions, 332 flow [2021-08-13 01:56:19,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-13 01:56:19,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-08-13 01:56:19,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 899 transitions. [2021-08-13 01:56:19,718 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8728155339805825 [2021-08-13 01:56:19,719 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 899 transitions. [2021-08-13 01:56:19,719 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 899 transitions. [2021-08-13 01:56:19,721 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 01:56:19,722 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 899 transitions. [2021-08-13 01:56:19,725 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 89.9) internal successors, (899), 10 states have internal predecessors, (899), 0 states have call successors, (0), 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 01:56:19,730 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 01:56:19,730 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 01:56:19,731 INFO L348 CegarLoopForPetriNet]: 97 programPoint places, 9 predicate places. [2021-08-13 01:56:19,731 INFO L482 AbstractCegarLoop]: Abstraction has has 106 places, 115 transitions, 332 flow [2021-08-13 01:56:19,731 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 86.42857142857143) internal successors, (605), 7 states have internal predecessors, (605), 0 states have call successors, (0), 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 01:56:19,731 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 01:56:19,731 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 01:56:19,731 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-13 01:56:19,732 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 01:56:19,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 01:56:19,732 INFO L82 PathProgramCache]: Analyzing trace with hash 1595306051, now seen corresponding path program 1 times [2021-08-13 01:56:19,732 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 01:56:19,732 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277206528] [2021-08-13 01:56:19,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 01:56:19,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 01:56:19,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:56:19,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 01:56:19,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:56:19,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 01:56:19,781 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-08-13 01:56:19,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-13 01:56:19,790 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 01:56:19,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 01:56:19,802 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:56:19,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 01:56:19,809 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:56:19,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 01:56:19,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:56:19,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 01:56:19,817 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 01:56:19,818 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 01:56:19,818 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277206528] [2021-08-13 01:56:19,818 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277206528] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 01:56:19,818 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 01:56:19,818 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 01:56:19,818 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125043946] [2021-08-13 01:56:19,819 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-08-13 01:56:19,819 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 01:56:19,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-13 01:56:19,820 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-08-13 01:56:19,820 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 103 [2021-08-13 01:56:19,821 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 115 transitions, 332 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 01:56:19,821 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 01:56:19,821 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 103 [2021-08-13 01:56:19,821 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 01:56:19,957 INFO L129 PetriNetUnfolder]: 241/766 cut-off events. [2021-08-13 01:56:19,957 INFO L130 PetriNetUnfolder]: For 32/312 co-relation queries the response was YES. [2021-08-13 01:56:19,959 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1599 conditions, 766 events. 241/766 cut-off events. For 32/312 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 4969 event pairs, 1 based on Foata normal form. 8/753 useless extension candidates. Maximal degree in co-relation 1555. Up to 137 conditions per place. [2021-08-13 01:56:19,961 INFO L132 encePairwiseOnDemand]: 96/103 looper letters, 18 selfloop transitions, 4 changer transitions 93/185 dead transitions. [2021-08-13 01:56:19,961 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 185 transitions, 842 flow [2021-08-13 01:56:19,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-13 01:56:19,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-08-13 01:56:19,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 897 transitions. [2021-08-13 01:56:19,963 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.870873786407767 [2021-08-13 01:56:19,963 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 897 transitions. [2021-08-13 01:56:19,963 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 897 transitions. [2021-08-13 01:56:19,963 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 01:56:19,963 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 897 transitions. [2021-08-13 01:56:19,965 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 01:56:19,966 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 01:56:19,967 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 01:56:19,967 INFO L348 CegarLoopForPetriNet]: 97 programPoint places, 18 predicate places. [2021-08-13 01:56:19,967 INFO L482 AbstractCegarLoop]: Abstraction has has 115 places, 185 transitions, 842 flow [2021-08-13 01:56:19,967 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 01:56:19,968 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 01:56:19,968 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 01:56:19,968 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-13 01:56:19,968 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 01:56:19,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 01:56:19,968 INFO L82 PathProgramCache]: Analyzing trace with hash 639944640, now seen corresponding path program 1 times [2021-08-13 01:56:19,968 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 01:56:19,969 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561851565] [2021-08-13 01:56:19,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 01:56:19,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 01:56:20,013 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:56:20,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 01:56:20,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:56:20,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 01:56:20,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:56:20,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 01:56:20,021 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-08-13 01:56:20,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-13 01:56:20,029 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 01:56:20,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 01:56:20,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:56:20,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 01:56:20,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:56:20,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 01:56:20,055 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:56:20,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 01:56:20,058 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 01:56:20,058 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 01:56:20,058 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561851565] [2021-08-13 01:56:20,058 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561851565] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 01:56:20,059 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 01:56:20,059 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 01:56:20,059 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980775871] [2021-08-13 01:56:20,059 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 01:56:20,059 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 01:56:20,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 01:56:20,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-08-13 01:56:20,060 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 103 [2021-08-13 01:56:20,061 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 185 transitions, 842 flow. Second operand has 8 states, 8 states have (on average 84.625) internal successors, (677), 8 states have internal predecessors, (677), 0 states have call successors, (0), 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 01:56:20,061 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 01:56:20,061 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 103 [2021-08-13 01:56:20,061 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 01:56:20,363 INFO L129 PetriNetUnfolder]: 428/1143 cut-off events. [2021-08-13 01:56:20,363 INFO L130 PetriNetUnfolder]: For 283/2026 co-relation queries the response was YES. [2021-08-13 01:56:20,367 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3178 conditions, 1143 events. 428/1143 cut-off events. For 283/2026 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 8094 event pairs, 1 based on Foata normal form. 10/1125 useless extension candidates. Maximal degree in co-relation 3127. Up to 228 conditions per place. [2021-08-13 01:56:20,369 INFO L132 encePairwiseOnDemand]: 94/103 looper letters, 19 selfloop transitions, 6 changer transitions 229/322 dead transitions. [2021-08-13 01:56:20,369 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 322 transitions, 2160 flow [2021-08-13 01:56:20,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-08-13 01:56:20,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-08-13 01:56:20,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1226 transitions. [2021-08-13 01:56:20,372 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8502080443828016 [2021-08-13 01:56:20,372 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1226 transitions. [2021-08-13 01:56:20,372 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1226 transitions. [2021-08-13 01:56:20,373 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 01:56:20,373 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1226 transitions. [2021-08-13 01:56:20,375 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 01:56:20,377 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 01:56:20,378 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 01:56:20,378 INFO L348 CegarLoopForPetriNet]: 97 programPoint places, 31 predicate places. [2021-08-13 01:56:20,378 INFO L482 AbstractCegarLoop]: Abstraction has has 128 places, 322 transitions, 2160 flow [2021-08-13 01:56:20,378 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 84.625) internal successors, (677), 8 states have internal predecessors, (677), 0 states have call successors, (0), 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 01:56:20,378 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 01:56:20,378 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 01:56:20,379 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-13 01:56:20,379 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 01:56:20,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 01:56:20,380 INFO L82 PathProgramCache]: Analyzing trace with hash 1962747679, now seen corresponding path program 1 times [2021-08-13 01:56:20,380 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 01:56:20,380 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677269072] [2021-08-13 01:56:20,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 01:56:20,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 01:56:20,473 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:56:20,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 01:56:20,474 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:56:20,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 01:56:20,476 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:56:20,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 01:56:20,480 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-08-13 01:56:20,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-13 01:56:20,493 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 01:56:20,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 01:56:20,508 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:56:20,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 01:56:20,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:56:20,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 01:56:20,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:56:20,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 01:56:20,524 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 01:56:20,524 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 01:56:20,524 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677269072] [2021-08-13 01:56:20,524 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [677269072] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 01:56:20,525 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 01:56:20,525 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 01:56:20,525 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612056484] [2021-08-13 01:56:20,525 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 01:56:20,527 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 01:56:20,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 01:56:20,531 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-08-13 01:56:20,532 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 103 [2021-08-13 01:56:20,533 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 322 transitions, 2160 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 01:56:20,533 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 01:56:20,533 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 103 [2021-08-13 01:56:20,533 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 01:56:20,887 INFO L129 PetriNetUnfolder]: 988/2250 cut-off events. [2021-08-13 01:56:20,887 INFO L130 PetriNetUnfolder]: For 1451/8565 co-relation queries the response was YES. [2021-08-13 01:56:20,894 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7773 conditions, 2250 events. 988/2250 cut-off events. For 1451/8565 co-relation queries the response was YES. Maximal size of possible extension queue 246. Compared 17611 event pairs, 1 based on Foata normal form. 18/2234 useless extension candidates. Maximal degree in co-relation 7715. Up to 597 conditions per place. [2021-08-13 01:56:20,898 INFO L132 encePairwiseOnDemand]: 95/103 looper letters, 17 selfloop transitions, 4 changer transitions 538/627 dead transitions. [2021-08-13 01:56:20,898 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 627 transitions, 5694 flow [2021-08-13 01:56:20,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-13 01:56:20,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-08-13 01:56:20,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1143 transitions. [2021-08-13 01:56:20,900 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8536221060492906 [2021-08-13 01:56:20,900 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1143 transitions. [2021-08-13 01:56:20,900 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1143 transitions. [2021-08-13 01:56:20,901 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 01:56:20,901 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1143 transitions. [2021-08-13 01:56:20,902 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 01:56:20,904 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 01:56:20,904 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 01:56:20,904 INFO L348 CegarLoopForPetriNet]: 97 programPoint places, 43 predicate places. [2021-08-13 01:56:20,905 INFO L482 AbstractCegarLoop]: Abstraction has has 140 places, 627 transitions, 5694 flow [2021-08-13 01:56:20,905 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 01:56:20,905 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 01:56:20,905 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] [2021-08-13 01:56:20,905 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-13 01:56:20,905 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 01:56:20,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 01:56:20,906 INFO L82 PathProgramCache]: Analyzing trace with hash 1479505553, now seen corresponding path program 1 times [2021-08-13 01:56:20,906 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 01:56:20,906 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327961093] [2021-08-13 01:56:20,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 01:56:20,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 01:56:20,936 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:56:20,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 01:56:20,937 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:56:20,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 01:56:20,939 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-08-13 01:56:20,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-13 01:56:20,950 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 01:56:20,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 01:56:20,960 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:56:20,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 01:56:20,967 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:56:20,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 01:56:20,976 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:56:20,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 01:56:20,978 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 01:56:20,978 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 01:56:20,978 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327961093] [2021-08-13 01:56:20,978 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [327961093] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 01:56:20,978 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 01:56:20,978 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 01:56:20,979 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432748928] [2021-08-13 01:56:20,980 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-08-13 01:56:20,980 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 01:56:20,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-13 01:56:20,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-08-13 01:56:20,982 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 103 [2021-08-13 01:56:20,983 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 627 transitions, 5694 flow. Second operand has 7 states, 7 states have (on average 86.85714285714286) internal successors, (608), 7 states have internal predecessors, (608), 0 states have call successors, (0), 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 01:56:20,983 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 01:56:20,983 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 103 [2021-08-13 01:56:20,983 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 01:56:21,554 INFO L129 PetriNetUnfolder]: 1282/3478 cut-off events. [2021-08-13 01:56:21,554 INFO L130 PetriNetUnfolder]: For 2856/15417 co-relation queries the response was YES. [2021-08-13 01:56:21,566 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12554 conditions, 3478 events. 1282/3478 cut-off events. For 2856/15417 co-relation queries the response was YES. Maximal size of possible extension queue 409. Compared 33702 event pairs, 0 based on Foata normal form. 14/3474 useless extension candidates. Maximal degree in co-relation 12490. Up to 771 conditions per place. [2021-08-13 01:56:21,572 INFO L132 encePairwiseOnDemand]: 96/103 looper letters, 14 selfloop transitions, 8 changer transitions 1183/1275 dead transitions. [2021-08-13 01:56:21,572 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 1275 transitions, 14572 flow [2021-08-13 01:56:21,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-13 01:56:21,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-08-13 01:56:21,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 897 transitions. [2021-08-13 01:56:21,574 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.870873786407767 [2021-08-13 01:56:21,574 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 897 transitions. [2021-08-13 01:56:21,574 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 897 transitions. [2021-08-13 01:56:21,574 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 01:56:21,574 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 897 transitions. [2021-08-13 01:56:21,576 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 01:56:21,577 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 01:56:21,578 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 01:56:21,578 INFO L348 CegarLoopForPetriNet]: 97 programPoint places, 52 predicate places. [2021-08-13 01:56:21,578 INFO L482 AbstractCegarLoop]: Abstraction has has 149 places, 1275 transitions, 14572 flow [2021-08-13 01:56:21,578 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 86.85714285714286) internal successors, (608), 7 states have internal predecessors, (608), 0 states have call successors, (0), 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 01:56:21,578 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 01:56:21,579 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 01:56:21,579 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-13 01:56:21,579 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 01:56:21,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 01:56:21,579 INFO L82 PathProgramCache]: Analyzing trace with hash -959579088, now seen corresponding path program 1 times [2021-08-13 01:56:21,579 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 01:56:21,579 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556079756] [2021-08-13 01:56:21,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 01:56:21,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 01:56:21,645 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:56:21,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 01:56:21,645 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:56:21,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 01:56:21,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:56:21,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 01:56:21,651 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-08-13 01:56:21,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-13 01:56:21,665 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 01:56:21,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 01:56:21,677 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:56:21,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 01:56:21,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:56:21,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 01:56:21,691 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:56:21,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 01:56:21,692 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 01:56:21,692 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 01:56:21,692 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556079756] [2021-08-13 01:56:21,692 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1556079756] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 01:56:21,692 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 01:56:21,692 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 01:56:21,692 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044381382] [2021-08-13 01:56:21,693 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 01:56:21,693 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 01:56:21,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 01:56:21,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-08-13 01:56:21,697 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 103 [2021-08-13 01:56:21,698 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 1275 transitions, 14572 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 01:56:21,698 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 01:56:21,698 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 103 [2021-08-13 01:56:21,698 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 01:56:23,061 INFO L129 PetriNetUnfolder]: 2820/6641 cut-off events. [2021-08-13 01:56:23,061 INFO L130 PetriNetUnfolder]: For 10904/69103 co-relation queries the response was YES. [2021-08-13 01:56:23,085 INFO L84 FinitePrefix]: Finished finitePrefix Result has 26922 conditions, 6641 events. 2820/6641 cut-off events. For 10904/69103 co-relation queries the response was YES. Maximal size of possible extension queue 722. Compared 66018 event pairs, 0 based on Foata normal form. 95/6710 useless extension candidates. Maximal degree in co-relation 26851. Up to 1375 conditions per place. [2021-08-13 01:56:23,096 INFO L132 encePairwiseOnDemand]: 94/103 looper letters, 11 selfloop transitions, 5 changer transitions 2233/2316 dead transitions. [2021-08-13 01:56:23,096 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 2316 transitions, 31518 flow [2021-08-13 01:56:23,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-08-13 01:56:23,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-08-13 01:56:23,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1226 transitions. [2021-08-13 01:56:23,099 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8502080443828016 [2021-08-13 01:56:23,099 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1226 transitions. [2021-08-13 01:56:23,099 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1226 transitions. [2021-08-13 01:56:23,100 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 01:56:23,100 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1226 transitions. [2021-08-13 01:56:23,102 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 01:56:23,103 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 01:56:23,104 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 01:56:23,104 INFO L348 CegarLoopForPetriNet]: 97 programPoint places, 65 predicate places. [2021-08-13 01:56:23,104 INFO L482 AbstractCegarLoop]: Abstraction has has 162 places, 2316 transitions, 31518 flow [2021-08-13 01:56:23,104 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 01:56:23,104 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 01:56:23,104 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 01:56:23,105 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-13 01:56:23,105 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 01:56:23,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 01:56:23,105 INFO L82 PathProgramCache]: Analyzing trace with hash -453563752, now seen corresponding path program 1 times [2021-08-13 01:56:23,105 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 01:56:23,105 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275903840] [2021-08-13 01:56:23,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 01:56:23,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 01:56:23,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:56:23,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 01:56:23,133 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:56:23,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 01:56:23,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:56:23,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 01:56:23,137 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-08-13 01:56:23,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-13 01:56:23,144 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 01:56:23,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 01:56:23,156 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:56:23,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 01:56:23,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:56:23,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 01:56:23,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:56:23,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 01:56:23,170 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 01:56:23,170 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 01:56:23,170 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275903840] [2021-08-13 01:56:23,170 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275903840] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 01:56:23,170 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 01:56:23,170 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-13 01:56:23,170 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820399225] [2021-08-13 01:56:23,171 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 01:56:23,171 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 01:56:23,171 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 01:56:23,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-08-13 01:56:23,172 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 103 [2021-08-13 01:56:23,172 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 2316 transitions, 31518 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 01:56:23,172 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 01:56:23,172 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 103 [2021-08-13 01:56:23,172 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 01:56:26,899 INFO L129 PetriNetUnfolder]: 6492/12411 cut-off events. [2021-08-13 01:56:26,899 INFO L130 PetriNetUnfolder]: For 33411/171993 co-relation queries the response was YES. [2021-08-13 01:56:26,963 INFO L84 FinitePrefix]: Finished finitePrefix Result has 58363 conditions, 12411 events. 6492/12411 cut-off events. For 33411/171993 co-relation queries the response was YES. Maximal size of possible extension queue 1248. Compared 115540 event pairs, 0 based on Foata normal form. 182/12553 useless extension candidates. Maximal degree in co-relation 58285. Up to 2552 conditions per place. [2021-08-13 01:56:26,983 INFO L132 encePairwiseOnDemand]: 94/103 looper letters, 0 selfloop transitions, 0 changer transitions 4370/4370 dead transitions. [2021-08-13 01:56:26,984 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 4370 transitions, 68838 flow [2021-08-13 01:56:26,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-08-13 01:56:26,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-08-13 01:56:26,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1225 transitions. [2021-08-13 01:56:26,986 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8495145631067961 [2021-08-13 01:56:26,986 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1225 transitions. [2021-08-13 01:56:26,986 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1225 transitions. [2021-08-13 01:56:26,987 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 01:56:26,987 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1225 transitions. [2021-08-13 01:56:26,989 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 01:56:26,991 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 01:56:26,991 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 01:56:26,992 INFO L348 CegarLoopForPetriNet]: 97 programPoint places, 76 predicate places. [2021-08-13 01:56:26,992 INFO L482 AbstractCegarLoop]: Abstraction has has 173 places, 4370 transitions, 68838 flow [2021-08-13 01:56:26,992 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 01:56:26,992 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown