/usr/bin/java -Xmx16000000000 -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-RepeatedSemanticLbeWithPredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-ext/46_monabsex2_vs.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-28 16:24:10,274 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-28 16:24:10,277 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-28 16:24:10,314 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-04-28 16:24:10,315 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-04-28 16:24:10,316 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-04-28 16:24:10,318 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-04-28 16:24:10,320 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-04-28 16:24:10,322 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-04-28 16:24:10,323 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-04-28 16:24:10,325 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-04-28 16:24:10,326 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-04-28 16:24:10,327 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-28 16:24:10,328 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-28 16:24:10,329 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-28 16:24:10,331 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-28 16:24:10,332 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-28 16:24:10,333 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-28 16:24:10,335 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-28 16:24:10,338 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-28 16:24:10,339 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-28 16:24:10,341 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-28 16:24:10,343 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-28 16:24:10,344 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-28 16:24:10,347 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-28 16:24:10,357 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-28 16:24:10,359 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-28 16:24:10,359 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-28 16:24:10,361 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-RepeatedSemanticLbeWithPredicates.epf [2021-04-28 16:24:10,406 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-28 16:24:10,407 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-28 16:24:10,409 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-28 16:24:10,409 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-28 16:24:10,409 INFO L138 SettingsManager]: * Use SBE=true [2021-04-28 16:24:10,410 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-28 16:24:10,411 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-28 16:24:10,411 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-28 16:24:10,411 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-28 16:24:10,411 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-28 16:24:10,413 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-28 16:24:10,413 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-28 16:24:10,413 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-28 16:24:10,413 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-28 16:24:10,413 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-28 16:24:10,414 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-28 16:24:10,414 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-28 16:24:10,414 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-28 16:24:10,414 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-28 16:24:10,414 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-28 16:24:10,415 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-28 16:24:10,415 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-28 16:24:10,415 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-28 16:24:10,415 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-28 16:24:10,416 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-28 16:24:10,416 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-28 16:24:10,416 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-28 16:24:10,416 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-28 16:24:10,416 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-28 16:24:10,417 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-28 16:24:10,417 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-28 16:24:10,807 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-28 16:24:10,834 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-28 16:24:10,838 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-28 16:24:10,839 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-28 16:24:10,840 INFO L275 PluginConnector]: CDTParser initialized [2021-04-28 16:24:10,841 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/46_monabsex2_vs.i [2021-04-28 16:24:10,924 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/11a2b02bf/24ebf41017294eb1adee3034be550c2e/FLAG17cc06983 [2021-04-28 16:24:11,563 INFO L306 CDTParser]: Found 1 translation units. [2021-04-28 16:24:11,564 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/46_monabsex2_vs.i [2021-04-28 16:24:11,579 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/11a2b02bf/24ebf41017294eb1adee3034be550c2e/FLAG17cc06983 [2021-04-28 16:24:11,840 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/11a2b02bf/24ebf41017294eb1adee3034be550c2e [2021-04-28 16:24:11,843 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-28 16:24:11,890 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-28 16:24:11,892 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-28 16:24:11,892 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-28 16:24:11,896 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-28 16:24:11,897 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 04:24:11" (1/1) ... [2021-04-28 16:24:11,898 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e443783 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 04:24:11, skipping insertion in model container [2021-04-28 16:24:11,898 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 04:24:11" (1/1) ... [2021-04-28 16:24:11,906 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-28 16:24:11,944 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-28 16:24:12,116 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-04-28 16:24:12,268 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/46_monabsex2_vs.i[30503,30516] [2021-04-28 16:24:12,289 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 16:24:12,302 INFO L203 MainTranslator]: Completed pre-run [2021-04-28 16:24:12,339 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-04-28 16:24:12,395 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/46_monabsex2_vs.i[30503,30516] [2021-04-28 16:24:12,398 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 16:24:12,499 INFO L208 MainTranslator]: Completed translation [2021-04-28 16:24:12,499 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 04:24:12 WrapperNode [2021-04-28 16:24:12,499 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-28 16:24:12,501 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-28 16:24:12,501 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-28 16:24:12,501 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-28 16:24:12,544 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 04:24:12" (1/1) ... [2021-04-28 16:24:12,586 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 04:24:12" (1/1) ... [2021-04-28 16:24:12,614 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-28 16:24:12,615 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-28 16:24:12,615 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-28 16:24:12,615 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-28 16:24:12,625 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 04:24:12" (1/1) ... [2021-04-28 16:24:12,625 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 04:24:12" (1/1) ... [2021-04-28 16:24:12,628 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 04:24:12" (1/1) ... [2021-04-28 16:24:12,628 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 04:24:12" (1/1) ... [2021-04-28 16:24:12,633 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 04:24:12" (1/1) ... [2021-04-28 16:24:12,638 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 04:24:12" (1/1) ... [2021-04-28 16:24:12,639 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 04:24:12" (1/1) ... [2021-04-28 16:24:12,642 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-28 16:24:12,643 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-28 16:24:12,643 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-28 16:24:12,643 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-28 16:24:12,644 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 04:24:12" (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 [2021-04-28 16:24:12,747 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2021-04-28 16:24:12,748 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2021-04-28 16:24:12,748 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-28 16:24:12,748 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-04-28 16:24:12,748 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-28 16:24:12,748 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-28 16:24:12,748 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-28 16:24:12,749 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-04-28 16:24:12,749 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-28 16:24:12,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-28 16:24:12,751 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-04-28 16:24:13,154 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-28 16:24:13,154 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-04-28 16:24:13,156 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 04:24:13 BoogieIcfgContainer [2021-04-28 16:24:13,157 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-28 16:24:13,158 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-28 16:24:13,159 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-28 16:24:13,162 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-28 16:24:13,163 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.04 04:24:11" (1/3) ... [2021-04-28 16:24:13,163 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@554487ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 04:24:13, skipping insertion in model container [2021-04-28 16:24:13,164 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 04:24:12" (2/3) ... [2021-04-28 16:24:13,164 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@554487ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 04:24:13, skipping insertion in model container [2021-04-28 16:24:13,164 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 04:24:13" (3/3) ... [2021-04-28 16:24:13,166 INFO L111 eAbstractionObserver]: Analyzing ICFG 46_monabsex2_vs.i [2021-04-28 16:24:13,174 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-28 16:24:13,179 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-04-28 16:24:13,180 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-28 16:24:13,206 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:13,206 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:13,207 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:13,207 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:13,207 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:13,207 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:13,207 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:13,208 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:13,208 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:13,209 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:13,209 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:13,209 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:13,212 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:13,212 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:13,212 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:13,212 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:13,216 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-28 16:24:13,241 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-04-28 16:24:13,270 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-28 16:24:13,271 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-28 16:24:13,271 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-28 16:24:13,271 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-28 16:24:13,271 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-28 16:24:13,271 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-28 16:24:13,272 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-28 16:24:13,272 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-28 16:24:13,284 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 32 places, 30 transitions, 65 flow [2021-04-28 16:24:13,315 INFO L129 PetriNetUnfolder]: 2/38 cut-off events. [2021-04-28 16:24:13,315 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 16:24:13,318 INFO L84 FinitePrefix]: Finished finitePrefix Result has 43 conditions, 38 events. 2/38 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 50 event pairs, 0 based on Foata normal form. 0/33 useless extension candidates. Maximal degree in co-relation 20. Up to 4 conditions per place. [2021-04-28 16:24:13,319 INFO L82 GeneralOperation]: Start removeDead. Operand has 32 places, 30 transitions, 65 flow [2021-04-28 16:24:13,323 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 32 places, 30 transitions, 65 flow [2021-04-28 16:24:13,325 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 16:24:13,343 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 32 places, 30 transitions, 65 flow [2021-04-28 16:24:13,348 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 32 places, 30 transitions, 65 flow [2021-04-28 16:24:13,349 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 32 places, 30 transitions, 65 flow [2021-04-28 16:24:13,360 INFO L129 PetriNetUnfolder]: 2/38 cut-off events. [2021-04-28 16:24:13,361 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 16:24:13,361 INFO L84 FinitePrefix]: Finished finitePrefix Result has 43 conditions, 38 events. 2/38 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 49 event pairs, 0 based on Foata normal form. 0/33 useless extension candidates. Maximal degree in co-relation 20. Up to 4 conditions per place. [2021-04-28 16:24:13,364 INFO L146 LiptonReduction]: Number of co-enabled transitions 140 [2021-04-28 16:24:15,890 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-28 16:24:16,193 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-28 16:24:16,366 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-28 16:24:16,532 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-04-28 16:24:16,850 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-28 16:24:17,001 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-28 16:24:17,207 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2021-04-28 16:24:17,448 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2021-04-28 16:24:17,777 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-04-28 16:24:17,839 INFO L158 LiptonReduction]: Checked pairs total: 151 [2021-04-28 16:24:17,839 INFO L160 LiptonReduction]: Total number of compositions: 44 [2021-04-28 16:24:17,845 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 4521 [2021-04-28 16:24:17,860 INFO L129 PetriNetUnfolder]: 0/31 cut-off events. [2021-04-28 16:24:17,860 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 16:24:17,861 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 16:24:17,862 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2021-04-28 16:24:17,862 INFO L428 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 16:24:17,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 16:24:17,868 INFO L82 PathProgramCache]: Analyzing trace with hash 4945274, now seen corresponding path program 1 times [2021-04-28 16:24:17,876 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 16:24:17,877 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735016562] [2021-04-28 16:24:17,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 16:24:17,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 16:24:18,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 16:24:18,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 16:24:18,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 16:24:18,067 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735016562] [2021-04-28 16:24:18,068 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 16:24:18,069 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 16:24:18,069 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449307026] [2021-04-28 16:24:18,080 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 16:24:18,080 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 16:24:18,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 16:24:18,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 16:24:18,099 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 74 [2021-04-28 16:24:18,101 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 33 transitions, 71 flow. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 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) [2021-04-28 16:24:18,102 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 16:24:18,102 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 74 [2021-04-28 16:24:18,103 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 16:24:18,140 INFO L129 PetriNetUnfolder]: 0/29 cut-off events. [2021-04-28 16:24:18,140 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 16:24:18,140 INFO L84 FinitePrefix]: Finished finitePrefix Result has 44 conditions, 29 events. 0/29 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 96 event pairs, 0 based on Foata normal form. 3/12 useless extension candidates. Maximal degree in co-relation 0. Up to 6 conditions per place. [2021-04-28 16:24:18,141 INFO L132 encePairwiseOnDemand]: 61/74 looper letters, 2 selfloop transitions, 4 changer transitions 15/26 dead transitions. [2021-04-28 16:24:18,142 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 26 transitions, 75 flow [2021-04-28 16:24:18,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 16:24:18,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 16:24:18,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 152 transitions. [2021-04-28 16:24:18,158 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6846846846846847 [2021-04-28 16:24:18,159 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 152 transitions. [2021-04-28 16:24:18,160 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 152 transitions. [2021-04-28 16:24:18,161 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 16:24:18,164 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 152 transitions. [2021-04-28 16:24:18,168 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 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) [2021-04-28 16:24:18,173 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 74.0) internal successors, (296), 4 states have internal predecessors, (296), 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) [2021-04-28 16:24:18,174 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 74.0) internal successors, (296), 4 states have internal predecessors, (296), 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) [2021-04-28 16:24:18,176 INFO L185 Difference]: Start difference. First operand has 36 places, 33 transitions, 71 flow. Second operand 3 states and 152 transitions. [2021-04-28 16:24:18,178 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 26 transitions, 75 flow [2021-04-28 16:24:18,181 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 26 transitions, 75 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-04-28 16:24:18,182 INFO L241 Difference]: Finished difference. Result has 31 places, 11 transitions, 35 flow [2021-04-28 16:24:18,185 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=57, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=35, PETRI_PLACES=31, PETRI_TRANSITIONS=11} [2021-04-28 16:24:18,186 INFO L343 CegarLoopForPetriNet]: 36 programPoint places, -5 predicate places. [2021-04-28 16:24:18,186 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 16:24:18,187 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 31 places, 11 transitions, 35 flow [2021-04-28 16:24:18,187 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 31 places, 11 transitions, 35 flow [2021-04-28 16:24:18,188 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 16 places, 11 transitions, 35 flow [2021-04-28 16:24:18,191 INFO L129 PetriNetUnfolder]: 0/12 cut-off events. [2021-04-28 16:24:18,191 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 16:24:18,191 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22 conditions, 12 events. 0/12 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 22 event pairs, 0 based on Foata normal form. 0/8 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2021-04-28 16:24:18,192 INFO L146 LiptonReduction]: Number of co-enabled transitions 36 [2021-04-28 16:24:18,193 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 16:24:18,193 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 16:24:18,193 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 7 [2021-04-28 16:24:18,195 INFO L480 AbstractCegarLoop]: Abstraction has has 16 places, 11 transitions, 35 flow [2021-04-28 16:24:18,195 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 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) [2021-04-28 16:24:18,196 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 16:24:18,196 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2021-04-28 16:24:18,196 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-28 16:24:18,196 INFO L428 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 16:24:18,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 16:24:18,197 INFO L82 PathProgramCache]: Analyzing trace with hash 153302481, now seen corresponding path program 1 times [2021-04-28 16:24:18,197 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 16:24:18,198 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140417584] [2021-04-28 16:24:18,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 16:24:18,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-28 16:24:18,225 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-28 16:24:18,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-28 16:24:18,243 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-28 16:24:18,276 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-04-28 16:24:18,276 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-04-28 16:24:18,277 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-28 16:24:18,278 WARN L342 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2021-04-28 16:24:18,279 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2021-04-28 16:24:18,285 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:18,286 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:18,286 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:18,286 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:18,286 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:18,286 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:18,286 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:18,287 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:18,287 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:18,287 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:18,288 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:18,288 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:18,288 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:18,288 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:18,289 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:18,289 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:18,289 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:18,289 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:18,289 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:18,289 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:18,290 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:18,290 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:18,290 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:18,290 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:18,291 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:18,291 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:18,291 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:18,292 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:18,293 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:18,293 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:18,294 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:18,294 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:18,295 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-28 16:24:18,295 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-04-28 16:24:18,297 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-28 16:24:18,298 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-28 16:24:18,298 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-28 16:24:18,298 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-28 16:24:18,298 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-28 16:24:18,298 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-28 16:24:18,298 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-28 16:24:18,298 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-28 16:24:18,300 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 42 places, 38 transitions, 88 flow [2021-04-28 16:24:18,311 INFO L129 PetriNetUnfolder]: 3/55 cut-off events. [2021-04-28 16:24:18,311 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-04-28 16:24:18,312 INFO L84 FinitePrefix]: Finished finitePrefix Result has 65 conditions, 55 events. 3/55 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 97 event pairs, 0 based on Foata normal form. 0/47 useless extension candidates. Maximal degree in co-relation 39. Up to 6 conditions per place. [2021-04-28 16:24:18,312 INFO L82 GeneralOperation]: Start removeDead. Operand has 42 places, 38 transitions, 88 flow [2021-04-28 16:24:18,313 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 42 places, 38 transitions, 88 flow [2021-04-28 16:24:18,313 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 16:24:18,314 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 42 places, 38 transitions, 88 flow [2021-04-28 16:24:18,314 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 42 places, 38 transitions, 88 flow [2021-04-28 16:24:18,315 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 42 places, 38 transitions, 88 flow [2021-04-28 16:24:18,324 INFO L129 PetriNetUnfolder]: 3/55 cut-off events. [2021-04-28 16:24:18,325 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-04-28 16:24:18,325 INFO L84 FinitePrefix]: Finished finitePrefix Result has 65 conditions, 55 events. 3/55 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 102 event pairs, 0 based on Foata normal form. 0/47 useless extension candidates. Maximal degree in co-relation 39. Up to 6 conditions per place. [2021-04-28 16:24:18,327 INFO L146 LiptonReduction]: Number of co-enabled transitions 392 [2021-04-28 16:24:20,177 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-04-28 16:24:20,328 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-04-28 16:24:20,527 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2021-04-28 16:24:20,745 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2021-04-28 16:24:20,928 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-04-28 16:24:21,079 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-04-28 16:24:21,249 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-28 16:24:21,410 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-28 16:24:21,708 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-28 16:24:21,881 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-28 16:24:22,066 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-28 16:24:22,234 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-28 16:24:22,403 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-28 16:24:22,473 INFO L158 LiptonReduction]: Checked pairs total: 1452 [2021-04-28 16:24:22,474 INFO L160 LiptonReduction]: Total number of compositions: 45 [2021-04-28 16:24:22,474 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 4161 [2021-04-28 16:24:22,481 INFO L129 PetriNetUnfolder]: 0/26 cut-off events. [2021-04-28 16:24:22,481 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 16:24:22,481 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 16:24:22,481 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2021-04-28 16:24:22,482 INFO L428 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-04-28 16:24:22,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 16:24:22,482 INFO L82 PathProgramCache]: Analyzing trace with hash 7626441, now seen corresponding path program 1 times [2021-04-28 16:24:22,483 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 16:24:22,483 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369525625] [2021-04-28 16:24:22,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 16:24:22,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 16:24:22,538 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.8 percent of original size [2021-04-28 16:24:22,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-04-28 16:24:22,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 16:24:22,559 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369525625] [2021-04-28 16:24:22,559 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 16:24:22,560 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 16:24:22,560 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655051061] [2021-04-28 16:24:22,560 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 16:24:22,560 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 16:24:22,561 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 16:24:22,561 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 16:24:22,562 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 83 [2021-04-28 16:24:22,563 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 41 transitions, 94 flow. Second operand has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 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) [2021-04-28 16:24:22,563 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 16:24:22,563 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 83 [2021-04-28 16:24:22,563 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 16:24:22,614 INFO L129 PetriNetUnfolder]: 16/79 cut-off events. [2021-04-28 16:24:22,615 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-04-28 16:24:22,616 INFO L84 FinitePrefix]: Finished finitePrefix Result has 140 conditions, 79 events. 16/79 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 325 event pairs, 1 based on Foata normal form. 33/66 useless extension candidates. Maximal degree in co-relation 101. Up to 43 conditions per place. [2021-04-28 16:24:22,617 INFO L132 encePairwiseOnDemand]: 66/83 looper letters, 12 selfloop transitions, 7 changer transitions 13/43 dead transitions. [2021-04-28 16:24:22,621 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 43 transitions, 142 flow [2021-04-28 16:24:22,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 16:24:22,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 16:24:22,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 184 transitions. [2021-04-28 16:24:22,630 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7389558232931727 [2021-04-28 16:24:22,630 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 184 transitions. [2021-04-28 16:24:22,630 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 184 transitions. [2021-04-28 16:24:22,631 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 16:24:22,631 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 184 transitions. [2021-04-28 16:24:22,633 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 61.333333333333336) internal successors, (184), 3 states have internal predecessors, (184), 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) [2021-04-28 16:24:22,634 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 83.0) internal successors, (332), 4 states have internal predecessors, (332), 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) [2021-04-28 16:24:22,634 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 83.0) internal successors, (332), 4 states have internal predecessors, (332), 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) [2021-04-28 16:24:22,635 INFO L185 Difference]: Start difference. First operand has 46 places, 41 transitions, 94 flow. Second operand 3 states and 184 transitions. [2021-04-28 16:24:22,635 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 43 transitions, 142 flow [2021-04-28 16:24:22,636 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 43 transitions, 140 flow, removed 1 selfloop flow, removed 0 redundant places. [2021-04-28 16:24:22,637 INFO L241 Difference]: Finished difference. Result has 43 places, 28 transitions, 103 flow [2021-04-28 16:24:22,637 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=103, PETRI_PLACES=43, PETRI_TRANSITIONS=28} [2021-04-28 16:24:22,638 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, -3 predicate places. [2021-04-28 16:24:22,638 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 16:24:22,638 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 43 places, 28 transitions, 103 flow [2021-04-28 16:24:22,638 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 43 places, 28 transitions, 103 flow [2021-04-28 16:24:22,639 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 30 places, 28 transitions, 103 flow [2021-04-28 16:24:22,648 INFO L129 PetriNetUnfolder]: 9/51 cut-off events. [2021-04-28 16:24:22,648 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-04-28 16:24:22,648 INFO L84 FinitePrefix]: Finished finitePrefix Result has 99 conditions, 51 events. 9/51 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 193 event pairs, 0 based on Foata normal form. 0/25 useless extension candidates. Maximal degree in co-relation 78. Up to 31 conditions per place. [2021-04-28 16:24:22,649 INFO L146 LiptonReduction]: Number of co-enabled transitions 266 [2021-04-28 16:24:22,837 INFO L158 LiptonReduction]: Checked pairs total: 256 [2021-04-28 16:24:22,838 INFO L160 LiptonReduction]: Total number of compositions: 2 [2021-04-28 16:24:22,838 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 200 [2021-04-28 16:24:22,839 INFO L480 AbstractCegarLoop]: Abstraction has has 30 places, 28 transitions, 103 flow [2021-04-28 16:24:22,840 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 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) [2021-04-28 16:24:22,840 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 16:24:22,840 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1] [2021-04-28 16:24:22,840 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-28 16:24:22,841 INFO L428 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-04-28 16:24:22,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 16:24:22,841 INFO L82 PathProgramCache]: Analyzing trace with hash -613201461, now seen corresponding path program 1 times [2021-04-28 16:24:22,841 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 16:24:22,842 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138151641] [2021-04-28 16:24:22,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 16:24:22,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-28 16:24:22,861 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-28 16:24:22,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-28 16:24:22,876 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-28 16:24:22,881 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-04-28 16:24:22,882 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-04-28 16:24:22,882 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-28 16:24:22,882 WARN L342 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2021-04-28 16:24:22,887 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2021-04-28 16:24:22,895 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:22,896 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:22,896 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:22,896 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:22,896 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:22,896 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:22,896 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:22,896 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:22,897 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:22,897 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:22,897 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:22,897 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:22,898 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:22,898 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:22,898 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:22,898 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:22,898 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:22,898 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:22,899 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:22,899 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:22,899 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:22,899 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:22,899 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:22,900 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:22,900 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:22,900 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:22,900 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:22,901 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:22,901 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:22,901 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:22,901 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:22,901 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:22,901 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:22,902 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:22,902 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:22,902 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:22,902 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:22,903 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:22,903 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:22,903 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:22,904 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:22,905 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:22,905 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:22,905 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:22,907 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:22,907 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:22,907 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:22,908 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:22,909 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-28 16:24:22,909 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-04-28 16:24:22,910 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-28 16:24:22,910 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-28 16:24:22,911 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-28 16:24:22,911 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-28 16:24:22,911 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-28 16:24:22,911 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-28 16:24:22,911 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-28 16:24:22,911 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-28 16:24:22,913 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 52 places, 46 transitions, 113 flow [2021-04-28 16:24:22,922 INFO L129 PetriNetUnfolder]: 4/72 cut-off events. [2021-04-28 16:24:22,922 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2021-04-28 16:24:22,922 INFO L84 FinitePrefix]: Finished finitePrefix Result has 88 conditions, 72 events. 4/72 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 152 event pairs, 0 based on Foata normal form. 0/61 useless extension candidates. Maximal degree in co-relation 59. Up to 8 conditions per place. [2021-04-28 16:24:22,923 INFO L82 GeneralOperation]: Start removeDead. Operand has 52 places, 46 transitions, 113 flow [2021-04-28 16:24:22,924 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 52 places, 46 transitions, 113 flow [2021-04-28 16:24:22,924 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 16:24:22,924 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 52 places, 46 transitions, 113 flow [2021-04-28 16:24:22,924 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 52 places, 46 transitions, 113 flow [2021-04-28 16:24:22,925 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 52 places, 46 transitions, 113 flow [2021-04-28 16:24:22,933 INFO L129 PetriNetUnfolder]: 4/72 cut-off events. [2021-04-28 16:24:22,934 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2021-04-28 16:24:22,934 INFO L84 FinitePrefix]: Finished finitePrefix Result has 88 conditions, 72 events. 4/72 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 153 event pairs, 0 based on Foata normal form. 0/61 useless extension candidates. Maximal degree in co-relation 59. Up to 8 conditions per place. [2021-04-28 16:24:22,936 INFO L146 LiptonReduction]: Number of co-enabled transitions 756 [2021-04-28 16:24:25,270 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-28 16:24:25,608 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2021-04-28 16:24:25,849 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2021-04-28 16:24:26,025 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-04-28 16:24:26,178 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-04-28 16:24:26,343 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-28 16:24:26,512 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-28 16:24:26,809 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-28 16:24:26,963 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-04-28 16:24:27,120 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-04-28 16:24:27,288 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-28 16:24:27,462 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-28 16:24:27,528 INFO L158 LiptonReduction]: Checked pairs total: 3084 [2021-04-28 16:24:27,529 INFO L160 LiptonReduction]: Total number of compositions: 49 [2021-04-28 16:24:27,529 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 4605 [2021-04-28 16:24:27,534 INFO L129 PetriNetUnfolder]: 0/27 cut-off events. [2021-04-28 16:24:27,534 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 16:24:27,535 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 16:24:27,535 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2021-04-28 16:24:27,535 INFO L428 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-04-28 16:24:27,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 16:24:27,535 INFO L82 PathProgramCache]: Analyzing trace with hash 10854759, now seen corresponding path program 1 times [2021-04-28 16:24:27,536 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 16:24:27,536 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833786430] [2021-04-28 16:24:27,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 16:24:27,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 16:24:27,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 16:24:27,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 16:24:27,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 16:24:27,570 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833786430] [2021-04-28 16:24:27,571 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 16:24:27,571 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 16:24:27,571 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164213753] [2021-04-28 16:24:27,571 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 16:24:27,571 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 16:24:27,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 16:24:27,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 16:24:27,573 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 95 [2021-04-28 16:24:27,574 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 49 transitions, 119 flow. Second operand has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 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) [2021-04-28 16:24:27,574 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 16:24:27,574 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 95 [2021-04-28 16:24:27,574 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 16:24:27,700 INFO L129 PetriNetUnfolder]: 257/508 cut-off events. [2021-04-28 16:24:27,700 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2021-04-28 16:24:27,702 INFO L84 FinitePrefix]: Finished finitePrefix Result has 982 conditions, 508 events. 257/508 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 2948 event pairs, 83 based on Foata normal form. 202/408 useless extension candidates. Maximal degree in co-relation 932. Up to 442 conditions per place. [2021-04-28 16:24:27,708 INFO L132 encePairwiseOnDemand]: 74/95 looper letters, 18 selfloop transitions, 10 changer transitions 13/55 dead transitions. [2021-04-28 16:24:27,708 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 55 transitions, 193 flow [2021-04-28 16:24:27,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 16:24:27,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 16:24:27,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 209 transitions. [2021-04-28 16:24:27,711 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7333333333333333 [2021-04-28 16:24:27,711 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 209 transitions. [2021-04-28 16:24:27,711 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 209 transitions. [2021-04-28 16:24:27,712 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 16:24:27,712 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 209 transitions. [2021-04-28 16:24:27,713 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 69.66666666666667) internal successors, (209), 3 states have internal predecessors, (209), 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) [2021-04-28 16:24:27,714 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 95.0) internal successors, (380), 4 states have internal predecessors, (380), 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) [2021-04-28 16:24:27,715 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 95.0) internal successors, (380), 4 states have internal predecessors, (380), 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) [2021-04-28 16:24:27,715 INFO L185 Difference]: Start difference. First operand has 56 places, 49 transitions, 119 flow. Second operand 3 states and 209 transitions. [2021-04-28 16:24:27,715 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 55 transitions, 193 flow [2021-04-28 16:24:27,717 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 55 transitions, 187 flow, removed 3 selfloop flow, removed 0 redundant places. [2021-04-28 16:24:27,718 INFO L241 Difference]: Finished difference. Result has 53 places, 39 transitions, 147 flow [2021-04-28 16:24:27,718 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=101, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=147, PETRI_PLACES=53, PETRI_TRANSITIONS=39} [2021-04-28 16:24:27,718 INFO L343 CegarLoopForPetriNet]: 56 programPoint places, -3 predicate places. [2021-04-28 16:24:27,719 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 16:24:27,719 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 53 places, 39 transitions, 147 flow [2021-04-28 16:24:27,719 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 53 places, 39 transitions, 147 flow [2021-04-28 16:24:27,720 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 40 places, 39 transitions, 147 flow [2021-04-28 16:24:27,746 INFO L129 PetriNetUnfolder]: 144/290 cut-off events. [2021-04-28 16:24:27,746 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-04-28 16:24:27,747 INFO L84 FinitePrefix]: Finished finitePrefix Result has 576 conditions, 290 events. 144/290 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 1658 event pairs, 63 based on Foata normal form. 0/131 useless extension candidates. Maximal degree in co-relation 554. Up to 262 conditions per place. [2021-04-28 16:24:27,752 INFO L146 LiptonReduction]: Number of co-enabled transitions 658 [2021-04-28 16:24:27,816 INFO L158 LiptonReduction]: Checked pairs total: 624 [2021-04-28 16:24:27,817 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 16:24:27,817 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 98 [2021-04-28 16:24:27,819 INFO L480 AbstractCegarLoop]: Abstraction has has 40 places, 39 transitions, 147 flow [2021-04-28 16:24:27,819 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 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) [2021-04-28 16:24:27,819 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 16:24:27,819 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 16:24:27,819 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-04-28 16:24:27,820 INFO L428 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-04-28 16:24:27,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 16:24:27,820 INFO L82 PathProgramCache]: Analyzing trace with hash -89922633, now seen corresponding path program 1 times [2021-04-28 16:24:27,820 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 16:24:27,821 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033356089] [2021-04-28 16:24:27,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 16:24:27,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 16:24:27,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 16:24:27,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 16:24:27,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 16:24:27,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-28 16:24:27,870 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-04-28 16:24:27,871 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033356089] [2021-04-28 16:24:27,871 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 16:24:27,871 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 16:24:27,871 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960218157] [2021-04-28 16:24:27,872 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 16:24:27,872 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 16:24:27,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 16:24:27,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 16:24:27,874 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 95 [2021-04-28 16:24:27,874 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 39 transitions, 147 flow. Second operand has 3 states, 3 states have (on average 62.333333333333336) internal successors, (187), 3 states have internal predecessors, (187), 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) [2021-04-28 16:24:27,875 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 16:24:27,875 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 95 [2021-04-28 16:24:27,875 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 16:24:27,931 INFO L129 PetriNetUnfolder]: 154/338 cut-off events. [2021-04-28 16:24:27,932 INFO L130 PetriNetUnfolder]: For 83/104 co-relation queries the response was YES. [2021-04-28 16:24:27,934 INFO L84 FinitePrefix]: Finished finitePrefix Result has 707 conditions, 338 events. 154/338 cut-off events. For 83/104 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 1766 event pairs, 36 based on Foata normal form. 65/199 useless extension candidates. Maximal degree in co-relation 683. Up to 262 conditions per place. [2021-04-28 16:24:27,936 INFO L132 encePairwiseOnDemand]: 89/95 looper letters, 10 selfloop transitions, 3 changer transitions 0/42 dead transitions. [2021-04-28 16:24:27,936 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 42 transitions, 173 flow [2021-04-28 16:24:27,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 16:24:27,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 16:24:27,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 199 transitions. [2021-04-28 16:24:27,939 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6982456140350877 [2021-04-28 16:24:27,939 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 199 transitions. [2021-04-28 16:24:27,939 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 199 transitions. [2021-04-28 16:24:27,940 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 16:24:27,940 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 199 transitions. [2021-04-28 16:24:27,941 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 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) [2021-04-28 16:24:27,942 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 95.0) internal successors, (380), 4 states have internal predecessors, (380), 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) [2021-04-28 16:24:27,943 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 95.0) internal successors, (380), 4 states have internal predecessors, (380), 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) [2021-04-28 16:24:27,943 INFO L185 Difference]: Start difference. First operand has 40 places, 39 transitions, 147 flow. Second operand 3 states and 199 transitions. [2021-04-28 16:24:27,943 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 42 transitions, 173 flow [2021-04-28 16:24:27,945 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 42 transitions, 163 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-28 16:24:27,946 INFO L241 Difference]: Finished difference. Result has 39 places, 39 transitions, 146 flow [2021-04-28 16:24:27,946 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=125, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=146, PETRI_PLACES=39, PETRI_TRANSITIONS=39} [2021-04-28 16:24:27,946 INFO L343 CegarLoopForPetriNet]: 56 programPoint places, -17 predicate places. [2021-04-28 16:24:27,946 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 16:24:27,947 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 39 places, 39 transitions, 146 flow [2021-04-28 16:24:27,947 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 39 places, 39 transitions, 146 flow [2021-04-28 16:24:27,947 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 39 places, 39 transitions, 146 flow [2021-04-28 16:24:27,966 INFO L129 PetriNetUnfolder]: 104/230 cut-off events. [2021-04-28 16:24:27,966 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-04-28 16:24:27,967 INFO L84 FinitePrefix]: Finished finitePrefix Result has 453 conditions, 230 events. 104/230 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 1026 event pairs, 28 based on Foata normal form. 0/70 useless extension candidates. Maximal degree in co-relation 431. Up to 193 conditions per place. [2021-04-28 16:24:27,971 INFO L146 LiptonReduction]: Number of co-enabled transitions 640 [2021-04-28 16:24:27,981 INFO L158 LiptonReduction]: Checked pairs total: 156 [2021-04-28 16:24:27,981 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 16:24:27,981 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 35 [2021-04-28 16:24:27,983 INFO L480 AbstractCegarLoop]: Abstraction has has 39 places, 39 transitions, 146 flow [2021-04-28 16:24:27,983 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 62.333333333333336) internal successors, (187), 3 states have internal predecessors, (187), 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) [2021-04-28 16:24:27,983 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 16:24:27,984 INFO L263 CegarLoopForPetriNet]: trace histogram [3, 3, 1, 1, 1, 1, 1] [2021-04-28 16:24:27,984 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-04-28 16:24:27,984 INFO L428 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-04-28 16:24:27,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 16:24:27,984 INFO L82 PathProgramCache]: Analyzing trace with hash 1447779974, now seen corresponding path program 1 times [2021-04-28 16:24:27,985 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 16:24:27,985 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928114923] [2021-04-28 16:24:27,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 16:24:28,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-28 16:24:28,002 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-28 16:24:28,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-28 16:24:28,014 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-28 16:24:28,020 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-04-28 16:24:28,020 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-04-28 16:24:28,020 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-04-28 16:24:28,021 WARN L342 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2021-04-28 16:24:28,021 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2021-04-28 16:24:28,029 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:28,029 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:28,029 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:28,030 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:28,030 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:28,030 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:28,030 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:28,030 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:28,030 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:28,031 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:28,031 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:28,031 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:28,031 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:28,031 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:28,031 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:28,032 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:28,032 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:28,032 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:28,032 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:28,032 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:28,032 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:28,033 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:28,033 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:28,033 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:28,033 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:28,033 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:28,033 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:28,034 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:28,034 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:28,034 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:28,034 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:28,034 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:28,034 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:28,035 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:28,035 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:28,035 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:28,035 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:28,035 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:28,035 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:28,035 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:28,036 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:28,036 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:28,036 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:28,036 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:28,036 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:28,036 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:28,036 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:28,037 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:28,037 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:28,037 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:28,037 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:28,037 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:28,039 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:28,039 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:28,039 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:28,039 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:28,041 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:28,041 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:28,041 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:28,041 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:28,042 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:28,043 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:28,043 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:28,043 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:28,044 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-28 16:24:28,044 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-04-28 16:24:28,046 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-28 16:24:28,046 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-28 16:24:28,046 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-28 16:24:28,046 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-28 16:24:28,046 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-28 16:24:28,046 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-28 16:24:28,046 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-28 16:24:28,046 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-28 16:24:28,048 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 62 places, 54 transitions, 140 flow [2021-04-28 16:24:28,056 INFO L129 PetriNetUnfolder]: 5/89 cut-off events. [2021-04-28 16:24:28,056 INFO L130 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2021-04-28 16:24:28,057 INFO L84 FinitePrefix]: Finished finitePrefix Result has 112 conditions, 89 events. 5/89 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 177 event pairs, 0 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 80. Up to 10 conditions per place. [2021-04-28 16:24:28,057 INFO L82 GeneralOperation]: Start removeDead. Operand has 62 places, 54 transitions, 140 flow [2021-04-28 16:24:28,058 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 62 places, 54 transitions, 140 flow [2021-04-28 16:24:28,058 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 16:24:28,058 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 54 transitions, 140 flow [2021-04-28 16:24:28,058 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 62 places, 54 transitions, 140 flow [2021-04-28 16:24:28,059 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 62 places, 54 transitions, 140 flow [2021-04-28 16:24:28,068 INFO L129 PetriNetUnfolder]: 5/89 cut-off events. [2021-04-28 16:24:28,068 INFO L130 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2021-04-28 16:24:28,068 INFO L84 FinitePrefix]: Finished finitePrefix Result has 112 conditions, 89 events. 5/89 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 187 event pairs, 0 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 80. Up to 10 conditions per place. [2021-04-28 16:24:28,070 INFO L146 LiptonReduction]: Number of co-enabled transitions 1232 [2021-04-28 16:24:31,620 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 59 [2021-04-28 16:24:31,868 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 59 [2021-04-28 16:24:32,195 INFO L158 LiptonReduction]: Checked pairs total: 6007 [2021-04-28 16:24:32,195 INFO L160 LiptonReduction]: Total number of compositions: 51 [2021-04-28 16:24:32,195 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 4137 [2021-04-28 16:24:32,200 INFO L129 PetriNetUnfolder]: 0/24 cut-off events. [2021-04-28 16:24:32,201 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 16:24:32,201 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 16:24:32,201 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2021-04-28 16:24:32,201 INFO L428 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 16:24:32,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 16:24:32,202 INFO L82 PathProgramCache]: Analyzing trace with hash 14463950, now seen corresponding path program 1 times [2021-04-28 16:24:32,202 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 16:24:32,202 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934202320] [2021-04-28 16:24:32,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 16:24:32,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 16:24:32,253 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.8 percent of original size [2021-04-28 16:24:32,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-04-28 16:24:32,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 16:24:32,275 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934202320] [2021-04-28 16:24:32,276 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 16:24:32,276 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 16:24:32,276 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682902218] [2021-04-28 16:24:32,276 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 16:24:32,277 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 16:24:32,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 16:24:32,277 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 16:24:32,278 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 105 [2021-04-28 16:24:32,279 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 57 transitions, 146 flow. Second operand has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 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) [2021-04-28 16:24:32,279 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 16:24:32,279 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 105 [2021-04-28 16:24:32,279 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 16:24:32,878 INFO L129 PetriNetUnfolder]: 2678/4110 cut-off events. [2021-04-28 16:24:32,878 INFO L130 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2021-04-28 16:24:32,893 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8046 conditions, 4110 events. 2678/4110 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 453. Compared 27168 event pairs, 1349 based on Foata normal form. 1237/2897 useless extension candidates. Maximal degree in co-relation 7983. Up to 3877 conditions per place. [2021-04-28 16:24:32,934 INFO L132 encePairwiseOnDemand]: 80/105 looper letters, 24 selfloop transitions, 13 changer transitions 14/68 dead transitions. [2021-04-28 16:24:32,935 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 68 transitions, 248 flow [2021-04-28 16:24:32,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 16:24:32,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 16:24:32,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 240 transitions. [2021-04-28 16:24:32,937 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7619047619047619 [2021-04-28 16:24:32,937 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 240 transitions. [2021-04-28 16:24:32,937 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 240 transitions. [2021-04-28 16:24:32,938 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 16:24:32,938 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 240 transitions. [2021-04-28 16:24:32,939 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 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) [2021-04-28 16:24:32,941 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 105.0) internal successors, (420), 4 states have internal predecessors, (420), 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) [2021-04-28 16:24:32,941 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 105.0) internal successors, (420), 4 states have internal predecessors, (420), 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) [2021-04-28 16:24:32,941 INFO L185 Difference]: Start difference. First operand has 66 places, 57 transitions, 146 flow. Second operand 3 states and 240 transitions. [2021-04-28 16:24:32,942 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 68 transitions, 248 flow [2021-04-28 16:24:32,943 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 68 transitions, 236 flow, removed 6 selfloop flow, removed 0 redundant places. [2021-04-28 16:24:32,945 INFO L241 Difference]: Finished difference. Result has 64 places, 50 transitions, 191 flow [2021-04-28 16:24:32,945 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=191, PETRI_PLACES=64, PETRI_TRANSITIONS=50} [2021-04-28 16:24:32,945 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, -2 predicate places. [2021-04-28 16:24:32,945 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 16:24:32,946 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 64 places, 50 transitions, 191 flow [2021-04-28 16:24:32,946 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 64 places, 50 transitions, 191 flow [2021-04-28 16:24:32,946 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 50 places, 50 transitions, 191 flow [2021-04-28 16:24:33,117 INFO L129 PetriNetUnfolder]: 1275/1921 cut-off events. [2021-04-28 16:24:33,117 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-04-28 16:24:33,123 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3837 conditions, 1921 events. 1275/1921 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 414. Compared 12561 event pairs, 762 based on Foata normal form. 0/879 useless extension candidates. Maximal degree in co-relation 3814. Up to 1885 conditions per place. [2021-04-28 16:24:33,157 INFO L146 LiptonReduction]: Number of co-enabled transitions 1124 [2021-04-28 16:24:33,283 INFO L158 LiptonReduction]: Checked pairs total: 1168 [2021-04-28 16:24:33,283 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 16:24:33,283 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 338 [2021-04-28 16:24:33,285 INFO L480 AbstractCegarLoop]: Abstraction has has 50 places, 50 transitions, 191 flow [2021-04-28 16:24:33,285 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 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) [2021-04-28 16:24:33,286 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 16:24:33,286 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 16:24:33,286 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-04-28 16:24:33,286 INFO L428 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 16:24:33,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 16:24:33,287 INFO L82 PathProgramCache]: Analyzing trace with hash -862911543, now seen corresponding path program 1 times [2021-04-28 16:24:33,287 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 16:24:33,287 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794452565] [2021-04-28 16:24:33,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 16:24:33,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 16:24:33,310 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 16:24:33,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 16:24:33,311 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 16:24:33,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-28 16:24:33,315 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-04-28 16:24:33,315 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794452565] [2021-04-28 16:24:33,315 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 16:24:33,315 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 16:24:33,316 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302434246] [2021-04-28 16:24:33,316 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 16:24:33,316 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 16:24:33,317 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 16:24:33,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 16:24:33,318 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 105 [2021-04-28 16:24:33,318 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 50 transitions, 191 flow. Second operand has 3 states, 3 states have (on average 70.33333333333333) internal successors, (211), 3 states have internal predecessors, (211), 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) [2021-04-28 16:24:33,318 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 16:24:33,318 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 105 [2021-04-28 16:24:33,319 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 16:24:33,620 INFO L129 PetriNetUnfolder]: 1360/2429 cut-off events. [2021-04-28 16:24:33,620 INFO L130 PetriNetUnfolder]: For 759/951 co-relation queries the response was YES. [2021-04-28 16:24:33,638 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5046 conditions, 2429 events. 1360/2429 cut-off events. For 759/951 co-relation queries the response was YES. Maximal size of possible extension queue 354. Compared 16965 event pairs, 486 based on Foata normal form. 637/1479 useless extension candidates. Maximal degree in co-relation 5021. Up to 2185 conditions per place. [2021-04-28 16:24:33,662 INFO L132 encePairwiseOnDemand]: 97/105 looper letters, 13 selfloop transitions, 4 changer transitions 0/54 dead transitions. [2021-04-28 16:24:33,662 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 54 transitions, 225 flow [2021-04-28 16:24:33,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 16:24:33,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 16:24:33,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 228 transitions. [2021-04-28 16:24:33,664 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7238095238095238 [2021-04-28 16:24:33,665 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 228 transitions. [2021-04-28 16:24:33,665 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 228 transitions. [2021-04-28 16:24:33,665 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 16:24:33,665 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 228 transitions. [2021-04-28 16:24:33,666 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 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) [2021-04-28 16:24:33,667 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 105.0) internal successors, (420), 4 states have internal predecessors, (420), 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) [2021-04-28 16:24:33,668 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 105.0) internal successors, (420), 4 states have internal predecessors, (420), 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) [2021-04-28 16:24:33,668 INFO L185 Difference]: Start difference. First operand has 50 places, 50 transitions, 191 flow. Second operand 3 states and 228 transitions. [2021-04-28 16:24:33,668 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 54 transitions, 225 flow [2021-04-28 16:24:33,674 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 54 transitions, 212 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-28 16:24:33,675 INFO L241 Difference]: Finished difference. Result has 48 places, 50 transitions, 190 flow [2021-04-28 16:24:33,676 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=190, PETRI_PLACES=48, PETRI_TRANSITIONS=50} [2021-04-28 16:24:33,676 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, -18 predicate places. [2021-04-28 16:24:33,676 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 16:24:33,676 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 48 places, 50 transitions, 190 flow [2021-04-28 16:24:33,677 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 48 places, 50 transitions, 190 flow [2021-04-28 16:24:33,677 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 48 places, 50 transitions, 190 flow [2021-04-28 16:24:33,805 INFO L129 PetriNetUnfolder]: 791/1307 cut-off events. [2021-04-28 16:24:33,805 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-04-28 16:24:33,811 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2605 conditions, 1307 events. 791/1307 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 201. Compared 7612 event pairs, 357 based on Foata normal form. 0/355 useless extension candidates. Maximal degree in co-relation 2582. Up to 1243 conditions per place. [2021-04-28 16:24:33,836 INFO L146 LiptonReduction]: Number of co-enabled transitions 1088 [2021-04-28 16:24:33,849 INFO L158 LiptonReduction]: Checked pairs total: 292 [2021-04-28 16:24:33,849 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 16:24:33,849 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 173 [2021-04-28 16:24:33,851 INFO L480 AbstractCegarLoop]: Abstraction has has 48 places, 50 transitions, 190 flow [2021-04-28 16:24:33,851 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 70.33333333333333) internal successors, (211), 3 states have internal predecessors, (211), 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) [2021-04-28 16:24:33,851 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 16:24:33,851 INFO L263 CegarLoopForPetriNet]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1] [2021-04-28 16:24:33,852 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-04-28 16:24:33,852 INFO L428 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 16:24:33,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 16:24:33,852 INFO L82 PathProgramCache]: Analyzing trace with hash 1918607949, now seen corresponding path program 1 times [2021-04-28 16:24:33,852 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 16:24:33,853 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383734889] [2021-04-28 16:24:33,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 16:24:33,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-28 16:24:33,865 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-28 16:24:33,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-28 16:24:33,875 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-28 16:24:33,881 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-04-28 16:24:33,882 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-04-28 16:24:33,882 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-04-28 16:24:33,882 WARN L342 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2021-04-28 16:24:33,882 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2021-04-28 16:24:33,893 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:33,893 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:33,893 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:33,893 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:33,893 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:33,894 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:33,894 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:33,894 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:33,894 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:33,894 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:33,894 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:33,894 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:33,895 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:33,895 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:33,895 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:33,895 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:33,895 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:33,895 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:33,896 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:33,896 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:33,896 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:33,896 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:33,896 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:33,896 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:33,897 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:33,897 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:33,897 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:33,897 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:33,897 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:33,897 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:33,898 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:33,898 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:33,898 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:33,898 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:33,898 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:33,898 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:33,899 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:33,899 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:33,899 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:33,899 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:33,899 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:33,899 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:33,899 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:33,900 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:33,900 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:33,900 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:33,900 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:33,900 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:33,901 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:33,901 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:33,901 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:33,901 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:33,901 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:33,901 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:33,901 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:33,901 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:33,902 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:33,902 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:33,902 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:33,902 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:33,902 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:33,903 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:33,903 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:33,903 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:33,904 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:33,904 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:33,905 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:33,905 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:33,906 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:33,906 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:33,906 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:33,906 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:33,907 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:33,908 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:33,908 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:33,908 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:33,909 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:33,909 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:33,909 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:33,910 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:33,911 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-28 16:24:33,911 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-04-28 16:24:33,912 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-28 16:24:33,912 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-28 16:24:33,912 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-28 16:24:33,912 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-28 16:24:33,912 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-28 16:24:33,912 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-28 16:24:33,913 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-28 16:24:33,913 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-28 16:24:33,914 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 72 places, 62 transitions, 169 flow [2021-04-28 16:24:33,926 INFO L129 PetriNetUnfolder]: 6/106 cut-off events. [2021-04-28 16:24:33,926 INFO L130 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2021-04-28 16:24:33,927 INFO L84 FinitePrefix]: Finished finitePrefix Result has 137 conditions, 106 events. 6/106 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 220 event pairs, 0 based on Foata normal form. 0/89 useless extension candidates. Maximal degree in co-relation 102. Up to 12 conditions per place. [2021-04-28 16:24:33,927 INFO L82 GeneralOperation]: Start removeDead. Operand has 72 places, 62 transitions, 169 flow [2021-04-28 16:24:33,928 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 72 places, 62 transitions, 169 flow [2021-04-28 16:24:33,928 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 16:24:33,928 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 72 places, 62 transitions, 169 flow [2021-04-28 16:24:33,928 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 72 places, 62 transitions, 169 flow [2021-04-28 16:24:33,929 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 72 places, 62 transitions, 169 flow [2021-04-28 16:24:33,939 INFO L129 PetriNetUnfolder]: 6/106 cut-off events. [2021-04-28 16:24:33,940 INFO L130 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2021-04-28 16:24:33,940 INFO L84 FinitePrefix]: Finished finitePrefix Result has 137 conditions, 106 events. 6/106 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 229 event pairs, 0 based on Foata normal form. 0/89 useless extension candidates. Maximal degree in co-relation 102. Up to 12 conditions per place. [2021-04-28 16:24:33,942 INFO L146 LiptonReduction]: Number of co-enabled transitions 1820 [2021-04-28 16:24:37,523 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 59 [2021-04-28 16:24:37,759 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 59 [2021-04-28 16:24:38,256 INFO L158 LiptonReduction]: Checked pairs total: 9330 [2021-04-28 16:24:38,256 INFO L160 LiptonReduction]: Total number of compositions: 57 [2021-04-28 16:24:38,257 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 4329 [2021-04-28 16:24:38,261 INFO L129 PetriNetUnfolder]: 0/27 cut-off events. [2021-04-28 16:24:38,261 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 16:24:38,261 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 16:24:38,261 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2021-04-28 16:24:38,262 INFO L428 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 16:24:38,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 16:24:38,262 INFO L82 PathProgramCache]: Analyzing trace with hash 18337732, now seen corresponding path program 1 times [2021-04-28 16:24:38,262 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 16:24:38,262 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618189114] [2021-04-28 16:24:38,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 16:24:38,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 16:24:38,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 16:24:38,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 16:24:38,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 16:24:38,282 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618189114] [2021-04-28 16:24:38,282 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 16:24:38,282 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 16:24:38,282 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748852397] [2021-04-28 16:24:38,282 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 16:24:38,282 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 16:24:38,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 16:24:38,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 16:24:38,284 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 119 [2021-04-28 16:24:38,284 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 65 transitions, 175 flow. Second operand has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 3 states have internal predecessors, (209), 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) [2021-04-28 16:24:38,284 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 16:24:38,284 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 119 [2021-04-28 16:24:38,285 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 16:24:42,699 INFO L129 PetriNetUnfolder]: 23131/30775 cut-off events. [2021-04-28 16:24:42,699 INFO L130 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2021-04-28 16:24:42,832 INFO L84 FinitePrefix]: Finished finitePrefix Result has 61506 conditions, 30775 events. 23131/30775 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 2491. Compared 183584 event pairs, 10738 based on Foata normal form. 7573/19799 useless extension candidates. Maximal degree in co-relation 61430. Up to 30616 conditions per place. [2021-04-28 16:24:43,089 INFO L132 encePairwiseOnDemand]: 90/119 looper letters, 30 selfloop transitions, 16 changer transitions 14/80 dead transitions. [2021-04-28 16:24:43,090 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 80 transitions, 303 flow [2021-04-28 16:24:43,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 16:24:43,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 16:24:43,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 271 transitions. [2021-04-28 16:24:43,092 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7591036414565826 [2021-04-28 16:24:43,092 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 271 transitions. [2021-04-28 16:24:43,092 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 271 transitions. [2021-04-28 16:24:43,093 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 16:24:43,093 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 271 transitions. [2021-04-28 16:24:43,094 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 90.33333333333333) internal successors, (271), 3 states have internal predecessors, (271), 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) [2021-04-28 16:24:43,095 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 119.0) internal successors, (476), 4 states have internal predecessors, (476), 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) [2021-04-28 16:24:43,096 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 119.0) internal successors, (476), 4 states have internal predecessors, (476), 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) [2021-04-28 16:24:43,096 INFO L185 Difference]: Start difference. First operand has 76 places, 65 transitions, 175 flow. Second operand 3 states and 271 transitions. [2021-04-28 16:24:43,096 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 80 transitions, 303 flow [2021-04-28 16:24:43,097 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 80 transitions, 283 flow, removed 10 selfloop flow, removed 0 redundant places. [2021-04-28 16:24:43,099 INFO L241 Difference]: Finished difference. Result has 74 places, 61 transitions, 235 flow [2021-04-28 16:24:43,099 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=145, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=235, PETRI_PLACES=74, PETRI_TRANSITIONS=61} [2021-04-28 16:24:43,100 INFO L343 CegarLoopForPetriNet]: 76 programPoint places, -2 predicate places. [2021-04-28 16:24:43,100 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 16:24:43,100 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 74 places, 61 transitions, 235 flow [2021-04-28 16:24:43,100 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 74 places, 61 transitions, 235 flow [2021-04-28 16:24:43,101 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 60 places, 61 transitions, 235 flow [2021-04-28 16:24:44,280 INFO L129 PetriNetUnfolder]: 9102/12240 cut-off events. [2021-04-28 16:24:44,280 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-04-28 16:24:44,326 INFO L84 FinitePrefix]: Finished finitePrefix Result has 24474 conditions, 12240 events. 9102/12240 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 1899. Compared 86069 event pairs, 6249 based on Foata normal form. 0/5876 useless extension candidates. Maximal degree in co-relation 24450. Up to 12196 conditions per place. [2021-04-28 16:24:44,566 INFO L146 LiptonReduction]: Number of co-enabled transitions 1712 [2021-04-28 16:24:44,641 INFO L158 LiptonReduction]: Checked pairs total: 1880 [2021-04-28 16:24:44,642 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 16:24:44,642 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1542 [2021-04-28 16:24:44,643 INFO L480 AbstractCegarLoop]: Abstraction has has 60 places, 61 transitions, 235 flow [2021-04-28 16:24:44,644 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 3 states have internal predecessors, (209), 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) [2021-04-28 16:24:44,644 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 16:24:44,644 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 16:24:44,644 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-04-28 16:24:44,644 INFO L428 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 16:24:44,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 16:24:44,645 INFO L82 PathProgramCache]: Analyzing trace with hash -41501894, now seen corresponding path program 1 times [2021-04-28 16:24:44,645 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 16:24:44,645 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223360404] [2021-04-28 16:24:44,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 16:24:44,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 16:24:44,666 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 16:24:44,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 16:24:44,667 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 16:24:44,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-28 16:24:44,671 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-04-28 16:24:44,671 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223360404] [2021-04-28 16:24:44,671 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 16:24:44,671 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 16:24:44,672 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311745608] [2021-04-28 16:24:44,672 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 16:24:44,672 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 16:24:44,673 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 16:24:44,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 16:24:44,674 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 119 [2021-04-28 16:24:44,674 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 61 transitions, 235 flow. Second operand has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 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) [2021-04-28 16:24:44,674 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 16:24:44,674 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 119 [2021-04-28 16:24:44,674 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 16:24:46,105 INFO L129 PetriNetUnfolder]: 10792/16877 cut-off events. [2021-04-28 16:24:46,105 INFO L130 PetriNetUnfolder]: For 6079/7873 co-relation queries the response was YES. [2021-04-28 16:24:46,286 INFO L84 FinitePrefix]: Finished finitePrefix Result has 34378 conditions, 16877 events. 10792/16877 cut-off events. For 6079/7873 co-relation queries the response was YES. Maximal size of possible extension queue 1819. Compared 134745 event pairs, 5161 based on Foata normal form. 4892/10429 useless extension candidates. Maximal degree in co-relation 34352. Up to 16033 conditions per place. [2021-04-28 16:24:46,399 INFO L132 encePairwiseOnDemand]: 109/119 looper letters, 16 selfloop transitions, 5 changer transitions 0/66 dead transitions. [2021-04-28 16:24:46,399 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 66 transitions, 277 flow [2021-04-28 16:24:46,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 16:24:46,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 16:24:46,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 260 transitions. [2021-04-28 16:24:46,402 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7282913165266106 [2021-04-28 16:24:46,402 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 260 transitions. [2021-04-28 16:24:46,402 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 260 transitions. [2021-04-28 16:24:46,403 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 16:24:46,403 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 260 transitions. [2021-04-28 16:24:46,405 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 86.66666666666667) internal successors, (260), 3 states have internal predecessors, (260), 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) [2021-04-28 16:24:46,406 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 119.0) internal successors, (476), 4 states have internal predecessors, (476), 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) [2021-04-28 16:24:46,406 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 119.0) internal successors, (476), 4 states have internal predecessors, (476), 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) [2021-04-28 16:24:46,407 INFO L185 Difference]: Start difference. First operand has 60 places, 61 transitions, 235 flow. Second operand 3 states and 260 transitions. [2021-04-28 16:24:46,407 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 66 transitions, 277 flow [2021-04-28 16:24:46,411 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 66 transitions, 261 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-28 16:24:46,414 INFO L241 Difference]: Finished difference. Result has 57 places, 61 transitions, 234 flow [2021-04-28 16:24:46,414 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=199, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=234, PETRI_PLACES=57, PETRI_TRANSITIONS=61} [2021-04-28 16:24:46,414 INFO L343 CegarLoopForPetriNet]: 76 programPoint places, -19 predicate places. [2021-04-28 16:24:46,415 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 16:24:46,415 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 57 places, 61 transitions, 234 flow [2021-04-28 16:24:46,415 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 57 places, 61 transitions, 234 flow [2021-04-28 16:24:46,416 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 57 places, 61 transitions, 234 flow [2021-04-28 16:24:47,038 INFO L129 PetriNetUnfolder]: 5323/7737 cut-off events. [2021-04-28 16:24:47,038 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-04-28 16:24:47,065 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15463 conditions, 7737 events. 5323/7737 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 957. Compared 52022 event pairs, 3047 based on Foata normal form. 0/2308 useless extension candidates. Maximal degree in co-relation 15439. Up to 7618 conditions per place. [2021-04-28 16:24:47,205 INFO L146 LiptonReduction]: Number of co-enabled transitions 1652 [2021-04-28 16:24:47,258 INFO L158 LiptonReduction]: Checked pairs total: 470 [2021-04-28 16:24:47,258 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 16:24:47,259 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 844 [2021-04-28 16:24:47,260 INFO L480 AbstractCegarLoop]: Abstraction has has 57 places, 61 transitions, 234 flow [2021-04-28 16:24:47,260 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 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) [2021-04-28 16:24:47,261 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 16:24:47,261 INFO L263 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 16:24:47,261 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-04-28 16:24:47,261 INFO L428 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 16:24:47,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 16:24:47,262 INFO L82 PathProgramCache]: Analyzing trace with hash -835216667, now seen corresponding path program 1 times [2021-04-28 16:24:47,262 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 16:24:47,262 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430569511] [2021-04-28 16:24:47,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 16:24:47,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-28 16:24:47,274 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-28 16:24:47,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-28 16:24:47,284 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-28 16:24:47,290 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-04-28 16:24:47,291 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-04-28 16:24:47,291 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-04-28 16:24:47,291 WARN L342 ceAbstractionStarter]: 5 thread instances were not sufficient, I will increase this number and restart the analysis [2021-04-28 16:24:47,291 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 6 thread instances. [2021-04-28 16:24:47,304 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:47,304 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:47,304 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:47,305 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:47,305 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:47,305 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:47,305 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:47,305 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:47,306 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:47,306 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:47,306 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:47,306 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:47,306 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:47,306 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:47,306 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:47,307 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:47,307 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:47,307 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:47,307 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:47,307 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:47,307 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:47,308 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:47,308 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:47,308 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:47,308 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:47,308 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:47,309 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:47,309 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:47,309 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:47,309 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:47,309 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:47,309 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:47,310 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:47,310 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:47,310 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:47,310 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:47,310 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:47,310 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:47,311 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:47,311 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:47,311 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:47,311 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:47,311 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:47,311 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:47,312 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:47,312 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:47,312 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:47,312 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:47,312 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:47,312 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:47,313 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:47,313 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:47,313 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:47,313 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:47,313 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:47,313 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:47,314 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:47,314 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:47,314 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:47,314 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:47,314 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:47,314 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:47,315 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:47,315 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:47,315 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:47,315 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:47,315 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:47,315 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:47,316 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:47,316 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:47,316 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:47,316 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:47,316 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:47,317 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:47,317 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:47,317 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:47,318 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:47,319 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:47,319 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:47,319 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:47,320 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:47,321 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:47,321 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:47,321 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:47,322 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:47,322 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:47,323 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:47,323 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:47,324 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:47,324 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:47,324 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:47,324 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:47,326 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:47,326 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:47,326 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:47,326 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:24:47,328 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-28 16:24:47,328 INFO L253 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-04-28 16:24:47,329 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-28 16:24:47,330 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-28 16:24:47,330 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-28 16:24:47,330 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-28 16:24:47,330 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-28 16:24:47,330 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-28 16:24:47,330 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-28 16:24:47,330 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-28 16:24:47,332 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 82 places, 70 transitions, 200 flow [2021-04-28 16:24:47,346 INFO L129 PetriNetUnfolder]: 7/123 cut-off events. [2021-04-28 16:24:47,347 INFO L130 PetriNetUnfolder]: For 50/50 co-relation queries the response was YES. [2021-04-28 16:24:47,347 INFO L84 FinitePrefix]: Finished finitePrefix Result has 163 conditions, 123 events. 7/123 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 266 event pairs, 0 based on Foata normal form. 0/103 useless extension candidates. Maximal degree in co-relation 126. Up to 14 conditions per place. [2021-04-28 16:24:47,348 INFO L82 GeneralOperation]: Start removeDead. Operand has 82 places, 70 transitions, 200 flow [2021-04-28 16:24:47,349 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 82 places, 70 transitions, 200 flow [2021-04-28 16:24:47,349 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 16:24:47,349 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 82 places, 70 transitions, 200 flow [2021-04-28 16:24:47,349 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 82 places, 70 transitions, 200 flow [2021-04-28 16:24:47,350 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 82 places, 70 transitions, 200 flow [2021-04-28 16:24:47,364 INFO L129 PetriNetUnfolder]: 7/123 cut-off events. [2021-04-28 16:24:47,364 INFO L130 PetriNetUnfolder]: For 50/50 co-relation queries the response was YES. [2021-04-28 16:24:47,365 INFO L84 FinitePrefix]: Finished finitePrefix Result has 163 conditions, 123 events. 7/123 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 283 event pairs, 0 based on Foata normal form. 0/103 useless extension candidates. Maximal degree in co-relation 126. Up to 14 conditions per place. [2021-04-28 16:24:47,368 INFO L146 LiptonReduction]: Number of co-enabled transitions 2520 [2021-04-28 16:24:51,854 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 59 [2021-04-28 16:24:52,084 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 59 [2021-04-28 16:24:52,181 INFO L158 LiptonReduction]: Checked pairs total: 13353 [2021-04-28 16:24:52,182 INFO L160 LiptonReduction]: Total number of compositions: 61 [2021-04-28 16:24:52,183 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 4834 [2021-04-28 16:24:52,187 INFO L129 PetriNetUnfolder]: 0/27 cut-off events. [2021-04-28 16:24:52,187 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 16:24:52,187 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 16:24:52,187 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2021-04-28 16:24:52,188 INFO L428 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 16:24:52,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 16:24:52,188 INFO L82 PathProgramCache]: Analyzing trace with hash 22676150, now seen corresponding path program 1 times [2021-04-28 16:24:52,188 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 16:24:52,188 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43010100] [2021-04-28 16:24:52,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 16:24:52,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 16:24:52,218 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 16:24:52,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 16:24:52,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 16:24:52,222 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43010100] [2021-04-28 16:24:52,222 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 16:24:52,222 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 16:24:52,222 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842544952] [2021-04-28 16:24:52,222 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 16:24:52,222 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 16:24:52,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 16:24:52,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 16:24:52,224 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 131 [2021-04-28 16:24:52,224 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 73 transitions, 206 flow. Second operand has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 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) [2021-04-28 16:24:52,224 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 16:24:52,224 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 131 [2021-04-28 16:24:52,224 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 16:25:26,228 INFO L129 PetriNetUnfolder]: 180768/236806 cut-off events. [2021-04-28 16:25:26,229 INFO L130 PetriNetUnfolder]: For 50/50 co-relation queries the response was YES. [2021-04-28 16:25:27,363 INFO L84 FinitePrefix]: Finished finitePrefix Result has 463609 conditions, 236806 events. 180768/236806 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 15072. Compared 1802826 event pairs, 123633 based on Foata normal form. 46001/145916 useless extension candidates. Maximal degree in co-relation 463519. Up to 226567 conditions per place. [2021-04-28 16:25:28,905 INFO L132 encePairwiseOnDemand]: 98/131 looper letters, 36 selfloop transitions, 19 changer transitions 14/92 dead transitions. [2021-04-28 16:25:28,905 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 92 transitions, 360 flow [2021-04-28 16:25:28,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 16:25:28,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 16:25:28,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 296 transitions. [2021-04-28 16:25:28,907 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7531806615776081 [2021-04-28 16:25:28,907 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 296 transitions. [2021-04-28 16:25:28,908 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 296 transitions. [2021-04-28 16:25:28,908 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 16:25:28,908 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 296 transitions. [2021-04-28 16:25:28,909 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 98.66666666666667) internal successors, (296), 3 states have internal predecessors, (296), 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) [2021-04-28 16:25:28,910 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 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) [2021-04-28 16:25:28,910 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 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) [2021-04-28 16:25:28,910 INFO L185 Difference]: Start difference. First operand has 86 places, 73 transitions, 206 flow. Second operand 3 states and 296 transitions. [2021-04-28 16:25:28,910 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 92 transitions, 360 flow [2021-04-28 16:25:28,912 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 92 transitions, 330 flow, removed 15 selfloop flow, removed 0 redundant places. [2021-04-28 16:25:28,914 INFO L241 Difference]: Finished difference. Result has 84 places, 72 transitions, 279 flow [2021-04-28 16:25:28,914 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=279, PETRI_PLACES=84, PETRI_TRANSITIONS=72} [2021-04-28 16:25:28,914 INFO L343 CegarLoopForPetriNet]: 86 programPoint places, -2 predicate places. [2021-04-28 16:25:28,915 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 16:25:28,915 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 84 places, 72 transitions, 279 flow [2021-04-28 16:25:28,915 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 84 places, 72 transitions, 279 flow [2021-04-28 16:25:28,916 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 70 places, 72 transitions, 279 flow [2021-04-28 16:25:35,800 INFO L129 PetriNetUnfolder]: 58689/74303 cut-off events. [2021-04-28 16:25:35,800 INFO L130 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2021-04-28 16:25:36,106 INFO L84 FinitePrefix]: Finished finitePrefix Result has 148599 conditions, 74303 events. 58689/74303 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 8988. Compared 520451 event pairs, 43704 based on Foata normal form. 0/36311 useless extension candidates. Maximal degree in co-relation 148574. Up to 74251 conditions per place. [2021-04-28 16:25:37,223 INFO L146 LiptonReduction]: Number of co-enabled transitions 2422 [2021-04-28 16:25:37,365 INFO L158 LiptonReduction]: Checked pairs total: 2760 [2021-04-28 16:25:37,365 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 16:25:37,366 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 8451 [2021-04-28 16:25:37,367 INFO L480 AbstractCegarLoop]: Abstraction has has 70 places, 72 transitions, 279 flow [2021-04-28 16:25:37,367 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 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) [2021-04-28 16:25:37,367 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 16:25:37,367 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 16:25:37,368 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-04-28 16:25:37,368 INFO L428 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 16:25:37,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 16:25:37,368 INFO L82 PathProgramCache]: Analyzing trace with hash -1642992797, now seen corresponding path program 1 times [2021-04-28 16:25:37,368 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 16:25:37,369 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726966884] [2021-04-28 16:25:37,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 16:25:37,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 16:25:37,386 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 16:25:37,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 16:25:37,387 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 16:25:37,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-28 16:25:37,391 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-04-28 16:25:37,391 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726966884] [2021-04-28 16:25:37,391 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 16:25:37,391 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 16:25:37,392 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306584322] [2021-04-28 16:25:37,392 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 16:25:37,392 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 16:25:37,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 16:25:37,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 16:25:37,393 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 131 [2021-04-28 16:25:37,394 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 72 transitions, 279 flow. Second operand has 3 states, 3 states have (on average 86.33333333333333) internal successors, (259), 3 states have internal predecessors, (259), 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) [2021-04-28 16:25:37,394 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 16:25:37,394 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 131 [2021-04-28 16:25:37,394 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 16:25:50,641 INFO L129 PetriNetUnfolder]: 80956/116669 cut-off events. [2021-04-28 16:25:50,641 INFO L130 PetriNetUnfolder]: For 45203/60320 co-relation queries the response was YES. [2021-04-28 16:25:51,317 INFO L84 FinitePrefix]: Finished finitePrefix Result has 235322 conditions, 116669 events. 80956/116669 cut-off events. For 45203/60320 co-relation queries the response was YES. Maximal size of possible extension queue 10066. Compared 1007276 event pairs, 46268 based on Foata normal form. 35358/72752 useless extension candidates. Maximal degree in co-relation 235295. Up to 113713 conditions per place. [2021-04-28 16:25:52,131 INFO L132 encePairwiseOnDemand]: 119/131 looper letters, 19 selfloop transitions, 6 changer transitions 0/78 dead transitions. [2021-04-28 16:25:52,131 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 78 transitions, 329 flow [2021-04-28 16:25:52,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 16:25:52,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 16:25:52,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 286 transitions. [2021-04-28 16:25:52,133 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.727735368956743 [2021-04-28 16:25:52,133 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 286 transitions. [2021-04-28 16:25:52,133 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 286 transitions. [2021-04-28 16:25:52,133 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 16:25:52,133 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 286 transitions. [2021-04-28 16:25:52,134 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 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) [2021-04-28 16:25:52,135 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 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) [2021-04-28 16:25:52,136 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 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) [2021-04-28 16:25:52,136 INFO L185 Difference]: Start difference. First operand has 70 places, 72 transitions, 279 flow. Second operand 3 states and 286 transitions. [2021-04-28 16:25:52,136 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 78 transitions, 329 flow [2021-04-28 16:25:52,140 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 78 transitions, 310 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-28 16:25:52,142 INFO L241 Difference]: Finished difference. Result has 66 places, 72 transitions, 278 flow [2021-04-28 16:25:52,142 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=236, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=278, PETRI_PLACES=66, PETRI_TRANSITIONS=72} [2021-04-28 16:25:52,143 INFO L343 CegarLoopForPetriNet]: 86 programPoint places, -20 predicate places. [2021-04-28 16:25:52,143 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 16:25:52,143 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 66 places, 72 transitions, 278 flow [2021-04-28 16:25:52,143 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 66 places, 72 transitions, 278 flow [2021-04-28 16:25:52,144 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 66 places, 72 transitions, 278 flow [2021-04-28 16:25:55,792 INFO L129 PetriNetUnfolder]: 33528/45356 cut-off events. [2021-04-28 16:25:55,793 INFO L130 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2021-04-28 16:25:56,018 INFO L84 FinitePrefix]: Finished finitePrefix Result has 90699 conditions, 45356 events. 33528/45356 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 4782. Compared 324640 event pairs, 21942 based on Foata normal form. 0/13656 useless extension candidates. Maximal degree in co-relation 90674. Up to 45118 conditions per place. [2021-04-28 16:25:56,498 INFO L146 LiptonReduction]: Number of co-enabled transitions 2332 [2021-04-28 16:25:56,507 INFO L158 LiptonReduction]: Checked pairs total: 690 [2021-04-28 16:25:56,507 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 16:25:56,507 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 4364 [2021-04-28 16:25:56,509 INFO L480 AbstractCegarLoop]: Abstraction has has 66 places, 72 transitions, 278 flow [2021-04-28 16:25:56,509 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 86.33333333333333) internal successors, (259), 3 states have internal predecessors, (259), 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) [2021-04-28 16:25:56,509 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 16:25:56,509 INFO L263 CegarLoopForPetriNet]: trace histogram [6, 6, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 16:25:56,509 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-04-28 16:25:56,509 INFO L428 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 16:25:56,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 16:25:56,510 INFO L82 PathProgramCache]: Analyzing trace with hash 1142322539, now seen corresponding path program 1 times [2021-04-28 16:25:56,510 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 16:25:56,510 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470830354] [2021-04-28 16:25:56,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 16:25:56,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-28 16:25:56,522 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-28 16:25:56,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-28 16:25:56,531 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-28 16:25:56,537 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-04-28 16:25:56,538 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-04-28 16:25:56,538 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-04-28 16:25:56,538 WARN L342 ceAbstractionStarter]: 6 thread instances were not sufficient, I will increase this number and restart the analysis [2021-04-28 16:25:56,538 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 7 thread instances. [2021-04-28 16:25:56,559 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:25:56,559 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:25:56,560 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:25:56,560 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:25:56,560 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:25:56,560 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:25:56,560 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:25:56,560 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:25:56,561 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:25:56,561 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:25:56,561 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:25:56,561 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:25:56,561 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:25:56,561 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:25:56,561 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:25:56,562 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:25:56,562 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:25:56,562 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:25:56,562 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:25:56,562 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:25:56,562 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:25:56,562 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:25:56,562 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:25:56,563 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:25:56,563 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:25:56,563 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:25:56,563 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:25:56,563 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:25:56,563 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:25:56,563 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:25:56,563 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:25:56,564 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:25:56,564 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:25:56,564 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:25:56,564 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:25:56,564 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:25:56,564 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:25:56,564 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:25:56,565 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:25:56,565 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:25:56,565 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:25:56,565 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:25:56,565 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:25:56,565 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:25:56,565 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:25:56,565 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:25:56,566 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:25:56,566 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:25:56,566 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:25:56,566 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:25:56,566 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:25:56,566 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:25:56,566 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:25:56,566 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:25:56,566 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:25:56,567 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:25:56,567 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:25:56,567 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:25:56,567 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:25:56,567 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:25:56,567 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:25:56,567 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:25:56,567 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:25:56,568 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:25:56,568 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:25:56,568 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:25:56,568 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:25:56,568 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:25:56,568 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:25:56,568 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:25:56,568 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:25:56,569 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:25:56,569 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:25:56,569 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:25:56,569 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:25:56,569 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:25:56,569 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:25:56,569 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:25:56,569 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:25:56,570 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:25:56,570 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:25:56,570 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:25:56,570 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:25:56,570 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:25:56,570 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:25:56,571 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:25:56,571 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:25:56,571 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:25:56,572 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:25:56,572 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:25:56,573 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:25:56,573 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:25:56,574 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:25:56,574 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:25:56,574 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:25:56,574 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:25:56,576 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:25:56,576 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:25:56,576 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:25:56,576 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:25:56,578 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:25:56,578 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:25:56,578 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:25:56,578 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:25:56,579 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:25:56,579 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:25:56,580 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:25:56,580 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:25:56,581 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:25:56,581 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:25:56,581 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:25:56,581 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 16:25:56,582 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-28 16:25:56,583 INFO L253 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2021-04-28 16:25:56,584 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-28 16:25:56,584 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-28 16:25:56,584 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-28 16:25:56,584 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-28 16:25:56,584 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-28 16:25:56,584 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-28 16:25:56,584 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-28 16:25:56,584 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-28 16:25:56,585 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 92 places, 78 transitions, 233 flow [2021-04-28 16:25:56,599 INFO L129 PetriNetUnfolder]: 8/140 cut-off events. [2021-04-28 16:25:56,599 INFO L130 PetriNetUnfolder]: For 77/77 co-relation queries the response was YES. [2021-04-28 16:25:56,600 INFO L84 FinitePrefix]: Finished finitePrefix Result has 190 conditions, 140 events. 8/140 cut-off events. For 77/77 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 307 event pairs, 0 based on Foata normal form. 0/117 useless extension candidates. Maximal degree in co-relation 152. Up to 16 conditions per place. [2021-04-28 16:25:56,600 INFO L82 GeneralOperation]: Start removeDead. Operand has 92 places, 78 transitions, 233 flow [2021-04-28 16:25:56,601 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 92 places, 78 transitions, 233 flow [2021-04-28 16:25:56,602 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 16:25:56,602 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 92 places, 78 transitions, 233 flow [2021-04-28 16:25:56,602 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 92 places, 78 transitions, 233 flow [2021-04-28 16:25:56,603 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 92 places, 78 transitions, 233 flow [2021-04-28 16:25:56,617 INFO L129 PetriNetUnfolder]: 8/140 cut-off events. [2021-04-28 16:25:56,617 INFO L130 PetriNetUnfolder]: For 77/77 co-relation queries the response was YES. [2021-04-28 16:25:56,618 INFO L84 FinitePrefix]: Finished finitePrefix Result has 190 conditions, 140 events. 8/140 cut-off events. For 77/77 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 328 event pairs, 0 based on Foata normal form. 0/117 useless extension candidates. Maximal degree in co-relation 152. Up to 16 conditions per place. [2021-04-28 16:25:56,620 INFO L146 LiptonReduction]: Number of co-enabled transitions 3332 [2021-04-28 16:26:01,505 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 59 [2021-04-28 16:26:01,731 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 59 [2021-04-28 16:26:02,030 INFO L158 LiptonReduction]: Checked pairs total: 17564 [2021-04-28 16:26:02,030 INFO L160 LiptonReduction]: Total number of compositions: 65 [2021-04-28 16:26:02,031 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 5429 [2021-04-28 16:26:02,034 INFO L129 PetriNetUnfolder]: 0/24 cut-off events. [2021-04-28 16:26:02,034 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 16:26:02,035 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 16:26:02,035 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2021-04-28 16:26:02,035 INFO L428 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 16:26:02,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 16:26:02,035 INFO L82 PathProgramCache]: Analyzing trace with hash 27291701, now seen corresponding path program 1 times [2021-04-28 16:26:02,035 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 16:26:02,036 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885186176] [2021-04-28 16:26:02,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 16:26:02,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 16:26:02,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 16:26:02,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 16:26:02,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 16:26:02,053 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885186176] [2021-04-28 16:26:02,053 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 16:26:02,053 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 16:26:02,053 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840504719] [2021-04-28 16:26:02,053 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 16:26:02,054 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 16:26:02,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 16:26:02,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 16:26:02,055 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 143 [2021-04-28 16:26:02,055 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 81 transitions, 239 flow. Second operand has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 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) [2021-04-28 16:26:02,055 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 16:26:02,056 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 143 [2021-04-28 16:26:02,056 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown [2021-04-28 16:34:10,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 16:34:10,918 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-04-28 16:34:10,918 WARN L545 AbstractCegarLoop]: Verification canceled [2021-04-28 16:34:10,932 WARN L224 ceAbstractionStarter]: Timeout [2021-04-28 16:34:10,942 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.04 04:34:10 BasicIcfg [2021-04-28 16:34:10,942 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-28 16:34:10,945 INFO L168 Benchmark]: Toolchain (without parser) took 599097.97 ms. Allocated memory was 302.0 MB in the beginning and 15.7 GB in the end (delta: 15.4 GB). Free memory was 277.5 MB in the beginning and 6.3 GB in the end (delta: -6.0 GB). Peak memory consumption was 10.0 GB. Max. memory is 16.0 GB. [2021-04-28 16:34:10,946 INFO L168 Benchmark]: CDTParser took 0.81 ms. Allocated memory is still 302.0 MB. Free memory is still 272.2 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-04-28 16:34:10,946 INFO L168 Benchmark]: CACSL2BoogieTranslator took 608.33 ms. Allocated memory is still 302.0 MB. Free memory was 274.3 MB in the beginning and 245.3 MB in the end (delta: 29.0 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.0 GB. [2021-04-28 16:34:10,947 INFO L168 Benchmark]: Boogie Procedure Inliner took 113.56 ms. Allocated memory is still 302.0 MB. Free memory was 245.3 MB in the beginning and 283.7 MB in the end (delta: -38.3 MB). Peak memory consumption was 4.5 MB. Max. memory is 16.0 GB. [2021-04-28 16:34:10,947 INFO L168 Benchmark]: Boogie Preprocessor took 27.16 ms. Allocated memory is still 302.0 MB. Free memory was 283.7 MB in the beginning and 282.6 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-04-28 16:34:10,947 INFO L168 Benchmark]: RCFGBuilder took 513.63 ms. Allocated memory is still 302.0 MB. Free memory was 282.6 MB in the beginning and 264.8 MB in the end (delta: 17.8 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.0 GB. [2021-04-28 16:34:10,948 INFO L168 Benchmark]: TraceAbstraction took 597783.88 ms. Allocated memory was 302.0 MB in the beginning and 15.7 GB in the end (delta: 15.4 GB). Free memory was 263.7 MB in the beginning and 6.3 GB in the end (delta: -6.0 GB). Peak memory consumption was 10.0 GB. Max. memory is 16.0 GB. [2021-04-28 16:34:10,952 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.81 ms. Allocated memory is still 302.0 MB. Free memory is still 272.2 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 608.33 ms. Allocated memory is still 302.0 MB. Free memory was 274.3 MB in the beginning and 245.3 MB in the end (delta: 29.0 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 113.56 ms. Allocated memory is still 302.0 MB. Free memory was 245.3 MB in the beginning and 283.7 MB in the end (delta: -38.3 MB). Peak memory consumption was 4.5 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 27.16 ms. Allocated memory is still 302.0 MB. Free memory was 283.7 MB in the beginning and 282.6 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 513.63 ms. Allocated memory is still 302.0 MB. Free memory was 282.6 MB in the beginning and 264.8 MB in the end (delta: 17.8 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.0 GB. * TraceAbstraction took 597783.88 ms. Allocated memory was 302.0 MB in the beginning and 15.7 GB in the end (delta: 15.4 GB). Free memory was 263.7 MB in the beginning and 6.3 GB in the end (delta: -6.0 GB). Peak memory consumption was 10.0 GB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4491.8ms, 32 PlacesBefore, 36 PlacesAfterwards, 30 TransitionsBefore, 33 TransitionsAfterwards, 140 CoEnabledTransitionPairs, 5 FixpointIterations, 25 TrivialSequentialCompositions, 18 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 44 TotalNumberOfCompositions, 151 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 151, positive: 151, positive conditional: 151, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 91, positive: 91, positive conditional: 0, positive unconditional: 91, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 91, positive: 91, positive conditional: 0, positive unconditional: 91, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 91, positive: 91, positive conditional: 0, positive unconditional: 91, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 151, positive: 60, positive conditional: 60, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 91, unknown conditional: 91, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 89, Positive cache size: 89, Positive conditional cache size: 89, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.9ms, 31 PlacesBefore, 16 PlacesAfterwards, 11 TransitionsBefore, 11 TransitionsAfterwards, 36 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 89, Positive cache size: 89, Positive conditional cache size: 89, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4159.7ms, 42 PlacesBefore, 46 PlacesAfterwards, 38 TransitionsBefore, 41 TransitionsAfterwards, 392 CoEnabledTransitionPairs, 5 FixpointIterations, 25 TrivialSequentialCompositions, 19 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 45 TotalNumberOfCompositions, 1452 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 749, positive: 685, positive conditional: 685, positive unconditional: 0, negative: 64, negative conditional: 64, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 312, positive: 296, positive conditional: 0, positive unconditional: 296, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 312, positive: 296, positive conditional: 0, positive unconditional: 296, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 312, positive: 282, positive conditional: 0, positive unconditional: 282, negative: 30, negative conditional: 0, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 30, positive: 14, positive conditional: 0, positive unconditional: 14, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 121, positive: 47, positive conditional: 0, positive unconditional: 47, negative: 74, negative conditional: 0, negative unconditional: 74, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 749, positive: 389, positive conditional: 389, positive unconditional: 0, negative: 48, negative conditional: 48, negative unconditional: 0, unknown: 312, unknown conditional: 312, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 304, Positive cache size: 288, Positive conditional cache size: 288, Positive unconditional cache size: 0, Negative cache size: 16, Negative conditional cache size: 16, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 199.2ms, 43 PlacesBefore, 30 PlacesAfterwards, 28 TransitionsBefore, 28 TransitionsAfterwards, 266 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 256 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 107, positive: 87, positive conditional: 87, positive unconditional: 0, negative: 20, negative conditional: 20, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 23, positive: 19, positive conditional: 8, positive unconditional: 11, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 23, positive: 19, positive conditional: 8, positive unconditional: 11, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 23, positive: 16, positive conditional: 0, positive unconditional: 16, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 7, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 48, positive: 15, positive conditional: 0, positive unconditional: 15, negative: 33, negative conditional: 33, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 107, positive: 68, positive conditional: 68, positive unconditional: 0, negative: 16, negative conditional: 16, negative unconditional: 0, unknown: 23, unknown conditional: 23, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 327, Positive cache size: 307, Positive conditional cache size: 307, Positive unconditional cache size: 0, Negative cache size: 20, Negative conditional cache size: 20, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4604.5ms, 52 PlacesBefore, 56 PlacesAfterwards, 46 TransitionsBefore, 49 TransitionsAfterwards, 756 CoEnabledTransitionPairs, 5 FixpointIterations, 25 TrivialSequentialCompositions, 23 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 49 TotalNumberOfCompositions, 3084 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1927, positive: 1827, positive conditional: 1827, positive unconditional: 0, negative: 100, negative conditional: 100, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 682, positive: 652, positive conditional: 0, positive unconditional: 652, negative: 30, negative conditional: 0, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 682, positive: 652, positive conditional: 0, positive unconditional: 652, negative: 30, negative conditional: 0, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 682, positive: 583, positive conditional: 0, positive unconditional: 583, negative: 99, negative conditional: 0, negative unconditional: 99, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 99, positive: 69, positive conditional: 0, positive unconditional: 69, negative: 30, negative conditional: 0, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 353, positive: 227, positive conditional: 0, positive unconditional: 227, negative: 126, negative conditional: 0, negative unconditional: 126, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1927, positive: 1175, positive conditional: 1175, positive unconditional: 0, negative: 70, negative conditional: 70, negative unconditional: 0, unknown: 682, unknown conditional: 682, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 670, Positive cache size: 640, Positive conditional cache size: 640, Positive unconditional cache size: 0, Negative cache size: 30, Negative conditional cache size: 30, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 97.8ms, 53 PlacesBefore, 40 PlacesAfterwards, 39 TransitionsBefore, 39 TransitionsAfterwards, 658 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 624 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 377, positive: 353, positive conditional: 353, positive unconditional: 0, negative: 24, negative conditional: 24, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 63, positive: 57, positive conditional: 20, positive unconditional: 37, negative: 6, negative conditional: 1, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 63, positive: 57, positive conditional: 20, positive unconditional: 37, negative: 6, negative conditional: 1, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 63, positive: 52, positive conditional: 0, positive unconditional: 52, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 11, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 6, negative conditional: 1, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 57, positive: 15, positive conditional: 0, positive unconditional: 15, negative: 42, negative conditional: 5, negative unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 377, positive: 296, positive conditional: 296, positive unconditional: 0, negative: 18, negative conditional: 18, negative unconditional: 0, unknown: 63, unknown conditional: 63, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 733, Positive cache size: 697, Positive conditional cache size: 697, Positive unconditional cache size: 0, Negative cache size: 36, Negative conditional cache size: 36, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 34.4ms, 39 PlacesBefore, 39 PlacesAfterwards, 39 TransitionsBefore, 39 TransitionsAfterwards, 640 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 156 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 6, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 5, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 6, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 5, negative conditional: 5, negative unconditional: 0, unknown: 1, unknown conditional: 1, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 734, Positive cache size: 697, Positive conditional cache size: 697, Positive unconditional cache size: 0, Negative cache size: 37, Negative conditional cache size: 37, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4136.7ms, 62 PlacesBefore, 66 PlacesAfterwards, 54 TransitionsBefore, 57 TransitionsAfterwards, 1232 CoEnabledTransitionPairs, 6 FixpointIterations, 25 TrivialSequentialCompositions, 25 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 51 TotalNumberOfCompositions, 6007 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1837, positive: 1675, positive conditional: 1675, positive unconditional: 0, negative: 162, negative conditional: 162, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 779, positive: 744, positive conditional: 0, positive unconditional: 744, negative: 35, negative conditional: 0, negative unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 779, positive: 744, positive conditional: 0, positive unconditional: 744, negative: 35, negative conditional: 0, negative unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 779, positive: 692, positive conditional: 0, positive unconditional: 692, negative: 87, negative conditional: 0, negative unconditional: 87, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 87, positive: 52, positive conditional: 0, positive unconditional: 52, negative: 35, negative conditional: 0, negative unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 295, positive: 154, positive conditional: 0, positive unconditional: 154, negative: 141, negative conditional: 0, negative unconditional: 141, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1837, positive: 931, positive conditional: 931, positive unconditional: 0, negative: 127, negative conditional: 127, negative unconditional: 0, unknown: 779, unknown conditional: 779, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 770, Positive cache size: 735, Positive conditional cache size: 735, Positive unconditional cache size: 0, Negative cache size: 35, Negative conditional cache size: 35, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 337.5ms, 64 PlacesBefore, 50 PlacesAfterwards, 50 TransitionsBefore, 50 TransitionsAfterwards, 1124 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 1168 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 306, positive: 274, positive conditional: 274, positive unconditional: 0, negative: 32, negative conditional: 32, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 68, positive: 60, positive conditional: 10, positive unconditional: 50, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 68, positive: 60, positive conditional: 10, positive unconditional: 50, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 68, positive: 56, positive conditional: 0, positive unconditional: 56, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 12, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 115, positive: 13, positive conditional: 0, positive unconditional: 13, negative: 102, negative conditional: 0, negative unconditional: 102, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 306, positive: 214, positive conditional: 214, positive unconditional: 0, negative: 24, negative conditional: 24, negative unconditional: 0, unknown: 68, unknown conditional: 68, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 838, Positive cache size: 795, Positive conditional cache size: 795, Positive unconditional cache size: 0, Negative cache size: 43, Negative conditional cache size: 43, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 172.5ms, 48 PlacesBefore, 48 PlacesAfterwards, 50 TransitionsBefore, 50 TransitionsAfterwards, 1088 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 292 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 8, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 8, negative conditional: 8, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 6, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 8, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 1, unknown conditional: 1, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 839, Positive cache size: 795, Positive conditional cache size: 795, Positive unconditional cache size: 0, Negative cache size: 44, Negative conditional cache size: 44, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4327.7ms, 72 PlacesBefore, 76 PlacesAfterwards, 62 TransitionsBefore, 65 TransitionsAfterwards, 1820 CoEnabledTransitionPairs, 6 FixpointIterations, 25 TrivialSequentialCompositions, 31 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 57 TotalNumberOfCompositions, 9330 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3504, positive: 3300, positive conditional: 3300, positive unconditional: 0, negative: 204, negative conditional: 204, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1305, positive: 1257, positive conditional: 0, positive unconditional: 1257, negative: 48, negative conditional: 0, negative unconditional: 48, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1305, positive: 1257, positive conditional: 0, positive unconditional: 1257, negative: 48, negative conditional: 0, negative unconditional: 48, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1305, positive: 1134, positive conditional: 0, positive unconditional: 1134, negative: 171, negative conditional: 0, negative unconditional: 171, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 171, positive: 123, positive conditional: 0, positive unconditional: 123, negative: 48, negative conditional: 0, negative unconditional: 48, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 490, positive: 314, positive conditional: 0, positive unconditional: 314, negative: 175, negative conditional: 0, negative unconditional: 175, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3504, positive: 2043, positive conditional: 2043, positive unconditional: 0, negative: 156, negative conditional: 156, negative unconditional: 0, unknown: 1305, unknown conditional: 1305, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1289, Positive cache size: 1241, Positive conditional cache size: 1241, Positive unconditional cache size: 0, Negative cache size: 48, Negative conditional cache size: 48, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1541.4ms, 74 PlacesBefore, 60 PlacesAfterwards, 61 TransitionsBefore, 61 TransitionsAfterwards, 1712 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 1880 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 398, positive: 358, positive conditional: 358, positive unconditional: 0, negative: 40, negative conditional: 40, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 86, positive: 76, positive conditional: 21, positive unconditional: 55, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 86, positive: 76, positive conditional: 21, positive unconditional: 55, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 86, positive: 71, positive conditional: 0, positive unconditional: 71, negative: 15, negative conditional: 0, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 15, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 65, positive: 16, positive conditional: 0, positive unconditional: 16, negative: 48, negative conditional: 0, negative unconditional: 48, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 398, positive: 282, positive conditional: 282, positive unconditional: 0, negative: 30, negative conditional: 30, negative unconditional: 0, unknown: 86, unknown conditional: 86, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1375, Positive cache size: 1317, Positive conditional cache size: 1317, Positive unconditional cache size: 0, Negative cache size: 58, Negative conditional cache size: 58, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 843.1ms, 57 PlacesBefore, 57 PlacesAfterwards, 61 TransitionsBefore, 61 TransitionsAfterwards, 1652 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 470 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 22, positive: 12, positive conditional: 12, positive unconditional: 0, negative: 10, negative conditional: 10, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 9, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 9, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 9, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 9, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 47, positive: 19, positive conditional: 0, positive unconditional: 19, negative: 28, negative conditional: 28, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 22, positive: 7, positive conditional: 7, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 9, unknown conditional: 9, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1384, Positive cache size: 1322, Positive conditional cache size: 1322, Positive unconditional cache size: 0, Negative cache size: 62, Negative conditional cache size: 62, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4832.4ms, 82 PlacesBefore, 86 PlacesAfterwards, 70 TransitionsBefore, 73 TransitionsAfterwards, 2520 CoEnabledTransitionPairs, 6 FixpointIterations, 25 TrivialSequentialCompositions, 35 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 61 TotalNumberOfCompositions, 13353 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2485, positive: 2237, positive conditional: 2237, positive unconditional: 0, negative: 248, negative conditional: 248, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1401, positive: 1334, positive conditional: 0, positive unconditional: 1334, negative: 67, negative conditional: 0, negative unconditional: 67, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1401, positive: 1334, positive conditional: 0, positive unconditional: 1334, negative: 67, negative conditional: 0, negative unconditional: 67, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1401, positive: 1257, positive conditional: 0, positive unconditional: 1257, negative: 144, negative conditional: 0, negative unconditional: 144, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 144, positive: 77, positive conditional: 0, positive unconditional: 77, negative: 67, negative conditional: 0, negative unconditional: 67, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 498, positive: 226, positive conditional: 0, positive unconditional: 226, negative: 273, negative conditional: 0, negative unconditional: 273, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2485, positive: 903, positive conditional: 903, positive unconditional: 0, negative: 181, negative conditional: 181, negative unconditional: 0, unknown: 1401, unknown conditional: 1401, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1389, Positive cache size: 1322, Positive conditional cache size: 1322, Positive unconditional cache size: 0, Negative cache size: 67, Negative conditional cache size: 67, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8450.3ms, 84 PlacesBefore, 70 PlacesAfterwards, 72 TransitionsBefore, 72 TransitionsAfterwards, 2422 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 2760 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 313, positive: 265, positive conditional: 265, positive unconditional: 0, negative: 48, negative conditional: 48, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 150, positive: 134, positive conditional: 52, positive unconditional: 82, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 150, positive: 134, positive conditional: 52, positive unconditional: 82, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 150, positive: 118, positive conditional: 0, positive unconditional: 118, negative: 32, negative conditional: 0, negative unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 32, positive: 16, positive conditional: 0, positive unconditional: 16, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 116, positive: 50, positive conditional: 0, positive unconditional: 50, negative: 67, negative conditional: 0, negative unconditional: 67, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 313, positive: 131, positive conditional: 131, positive unconditional: 0, negative: 32, negative conditional: 32, negative unconditional: 0, unknown: 150, unknown conditional: 150, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1539, Positive cache size: 1456, Positive conditional cache size: 1456, Positive unconditional cache size: 0, Negative cache size: 83, Negative conditional cache size: 83, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4363.9ms, 66 PlacesBefore, 66 PlacesAfterwards, 72 TransitionsBefore, 72 TransitionsAfterwards, 2332 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 690 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 14, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 12, negative conditional: 12, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 14, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 12, negative conditional: 12, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1539, Positive cache size: 1456, Positive conditional cache size: 1456, Positive unconditional cache size: 0, Negative cache size: 83, Negative conditional cache size: 83, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5428.3ms, 92 PlacesBefore, 96 PlacesAfterwards, 78 TransitionsBefore, 81 TransitionsAfterwards, 3332 CoEnabledTransitionPairs, 6 FixpointIterations, 25 TrivialSequentialCompositions, 39 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 65 TotalNumberOfCompositions, 17564 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3346, positive: 3064, positive conditional: 3064, positive unconditional: 0, negative: 282, negative conditional: 282, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1728, positive: 1659, positive conditional: 0, positive unconditional: 1659, negative: 69, negative conditional: 0, negative unconditional: 69, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1728, positive: 1659, positive conditional: 0, positive unconditional: 1659, negative: 69, negative conditional: 0, negative unconditional: 69, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1728, positive: 1574, positive conditional: 0, positive unconditional: 1574, negative: 154, negative conditional: 0, negative unconditional: 154, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 154, positive: 85, positive conditional: 0, positive unconditional: 85, negative: 69, negative conditional: 0, negative unconditional: 69, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 818, positive: 514, positive conditional: 0, positive unconditional: 514, negative: 304, negative conditional: 0, negative unconditional: 304, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3346, positive: 1405, positive conditional: 1405, positive unconditional: 0, negative: 213, negative conditional: 213, negative unconditional: 0, unknown: 1728, unknown conditional: 1728, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1714, Positive cache size: 1645, Positive conditional cache size: 1645, Positive unconditional cache size: 0, Negative cache size: 69, Negative conditional cache size: 69, Negative unconditional cache size: 0 - TimeoutResultAtElement [Line: 705]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable (line 705). Cancelled while CegarLoopForPetriNetWithRepeatedLiptonReduction was enhancing Floyd-Hoare automaton (3states, 79/143 universal loopers) in iteration 1,while PetriNetUnfolder was constructing finite prefix that currently has 2318629 conditions, 1179857 events (967143/1179856 cut-off events. For 77/77 co-relation queries the response was YES. Maximal size of possible extension queue 86268. Compared 8685348 event pairs, 688264 based on Foata normal form. 171589/706727 useless extension candidates. Maximal degree in co-relation 2318524. Up to 1138271 conditions per place.). - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 29 locations, 1 error locations. Started 7 CEGAR loops. EmptinessCheckTime: 28.5ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 597469.5ms, OverallIterations: 17, TraceHistogramMax: 6, EmptinessCheckTime: 0.0ms, AutomataDifference: 548281.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 32175.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 204 SDtfs, 47 SDslu, 0 SDs, 0 SdLazy, 210 SolverSat, 70 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 332.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 69.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=279occurred in iteration=1, InterpolantAutomatonStates: 30, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 24.0ms SsaConstructionTime, 166.1ms SatisfiabilityAnalysisTime, 325.3ms InterpolantComputationTime, 143 NumberOfCodeBlocks, 143 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 57 ConstructedInterpolants, 0 QuantifiedInterpolants, 187 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 8/8 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout !SESSION 2021-04-28 16:24:08.436 ----------------------------------------------- eclipse.buildId=unknown java.version=11.0.10 java.vendor=AdoptOpenJDK BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_GB Framework arguments: -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-ext/46_monabsex2_vs.i Command-line arguments: -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-ext/46_monabsex2_vs.i !ENTRY org.eclipse.osgi 4 0 2021-04-28 16:34:11.246 !MESSAGE Application error !STACK 1 org.eclipse.core.internal.resources.ResourceException(/)[568]: java.io.FileNotFoundException: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/11a2b02bf/.metadata/.plugins/org.eclipse.core.resources/.root/1.tree (No such file or directory) at java.base/java.io.FileOutputStream.open0(Native Method) at java.base/java.io.FileOutputStream.open(FileOutputStream.java:298) at java.base/java.io.FileOutputStream.(FileOutputStream.java:237) at java.base/java.io.FileOutputStream.(FileOutputStream.java:187) at org.eclipse.core.internal.localstore.SafeFileOutputStream.(SafeFileOutputStream.java:55) at org.eclipse.core.internal.resources.SaveManager.saveTree(SaveManager.java:1381) at org.eclipse.core.internal.resources.SaveManager.save(SaveManager.java:1168) at org.eclipse.core.internal.resources.Workspace.save(Workspace.java:2333) at org.eclipse.core.internal.resources.Workspace.save(Workspace.java:2322) at de.uni_freiburg.informatik.ultimate.core.coreplugin.UltimateCore.start(UltimateCore.java:191) at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:203) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:134) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:401) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:255) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.base/java.lang.reflect.Method.invoke(Method.java:566) at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:657) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:594) at org.eclipse.equinox.launcher.Main.run(Main.java:1465) at org.eclipse.equinox.launcher.Main.main(Main.java:1438) An error has occurred. See the log file /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/11a2b02bf/.metadata/.log.