/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-SemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/mix053_rmo.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-11 20:13:43,358 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-11 20:13:43,360 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-11 20:13:43,381 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-03-11 20:13:43,397 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-11 20:13:43,398 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-11 20:13:43,400 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-11 20:13:43,401 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-11 20:13:43,401 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-11 20:13:43,402 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-11 20:13:43,405 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-11 20:13:43,408 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-11 20:13:43,409 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-11 20:13:43,409 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-11 20:13:43,410 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-11 20:13:43,410 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-11 20:13:43,412 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-11 20:13:43,416 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-11 20:13:43,417 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-11 20:13:43,417 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-11 20:13:43,418 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-SemanticLbe.epf [2021-03-11 20:13:43,440 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-11 20:13:43,440 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-11 20:13:43,442 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-11 20:13:43,443 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-11 20:13:43,443 INFO L138 SettingsManager]: * Use SBE=true [2021-03-11 20:13:43,443 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-11 20:13:43,443 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-11 20:13:43,443 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-11 20:13:43,443 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-11 20:13:43,443 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-11 20:13:43,444 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-11 20:13:43,444 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-11 20:13:43,444 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-11 20:13:43,444 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-11 20:13:43,444 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-11 20:13:43,444 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-11 20:13:43,445 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-11 20:13:43,445 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-11 20:13:43,445 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-11 20:13:43,445 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-11 20:13:43,445 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-11 20:13:43,445 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-11 20:13:43,445 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-11 20:13:43,445 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-11 20:13:43,446 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-11 20:13:43,446 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-11 20:13:43,446 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-11 20:13:43,446 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-11 20:13:43,446 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-11 20:13:43,697 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-11 20:13:43,716 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-11 20:13:43,717 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-11 20:13:43,718 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-11 20:13:43,718 INFO L275 PluginConnector]: CDTParser initialized [2021-03-11 20:13:43,719 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix053_rmo.opt.i [2021-03-11 20:13:43,768 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/503e5ce78/790438cca64f413da1ef30a3d23e9f72/FLAGe8334e02b [2021-03-11 20:13:44,181 INFO L306 CDTParser]: Found 1 translation units. [2021-03-11 20:13:44,181 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix053_rmo.opt.i [2021-03-11 20:13:44,192 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/503e5ce78/790438cca64f413da1ef30a3d23e9f72/FLAGe8334e02b [2021-03-11 20:13:44,202 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/503e5ce78/790438cca64f413da1ef30a3d23e9f72 [2021-03-11 20:13:44,204 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-11 20:13:44,207 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-11 20:13:44,208 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-11 20:13:44,208 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-11 20:13:44,212 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-11 20:13:44,213 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.03 08:13:44" (1/1) ... [2021-03-11 20:13:44,214 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7bac9a1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 08:13:44, skipping insertion in model container [2021-03-11 20:13:44,214 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.03 08:13:44" (1/1) ... [2021-03-11 20:13:44,218 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-11 20:13:44,244 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-11 20:13:44,334 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-wmm/mix053_rmo.opt.i[948,961] [2021-03-11 20:13:44,536 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-11 20:13:44,544 INFO L203 MainTranslator]: Completed pre-run [2021-03-11 20:13:44,553 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-wmm/mix053_rmo.opt.i[948,961] [2021-03-11 20:13:44,587 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-11 20:13:44,643 INFO L208 MainTranslator]: Completed translation [2021-03-11 20:13:44,644 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 08:13:44 WrapperNode [2021-03-11 20:13:44,644 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-11 20:13:44,645 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-11 20:13:44,645 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-11 20:13:44,645 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-11 20:13:44,650 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 08:13:44" (1/1) ... [2021-03-11 20:13:44,661 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 08:13:44" (1/1) ... [2021-03-11 20:13:44,677 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-11 20:13:44,678 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-11 20:13:44,678 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-11 20:13:44,678 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-11 20:13:44,684 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 08:13:44" (1/1) ... [2021-03-11 20:13:44,684 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 08:13:44" (1/1) ... [2021-03-11 20:13:44,686 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 08:13:44" (1/1) ... [2021-03-11 20:13:44,687 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 08:13:44" (1/1) ... [2021-03-11 20:13:44,693 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 08:13:44" (1/1) ... [2021-03-11 20:13:44,695 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 08:13:44" (1/1) ... [2021-03-11 20:13:44,697 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 08:13:44" (1/1) ... [2021-03-11 20:13:44,700 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-11 20:13:44,700 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-11 20:13:44,700 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-11 20:13:44,700 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-11 20:13:44,701 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 08:13:44" (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 [2021-03-11 20:13:44,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-11 20:13:44,749 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-11 20:13:44,749 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-11 20:13:44,749 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-11 20:13:44,749 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-11 20:13:44,749 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-11 20:13:44,750 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-11 20:13:44,750 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-11 20:13:44,750 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-03-11 20:13:44,750 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-03-11 20:13:44,750 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-03-11 20:13:44,750 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-03-11 20:13:44,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-11 20:13:44,750 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-11 20:13:44,750 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-11 20:13:44,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-11 20:13:44,751 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-11 20:13:45,735 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-11 20:13:45,735 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-03-11 20:13:45,736 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 08:13:45 BoogieIcfgContainer [2021-03-11 20:13:45,737 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-11 20:13:45,737 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-11 20:13:45,738 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-11 20:13:45,739 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-11 20:13:45,740 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.03 08:13:44" (1/3) ... [2021-03-11 20:13:45,740 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c8bd89f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.03 08:13:45, skipping insertion in model container [2021-03-11 20:13:45,740 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 08:13:44" (2/3) ... [2021-03-11 20:13:45,740 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c8bd89f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.03 08:13:45, skipping insertion in model container [2021-03-11 20:13:45,740 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 08:13:45" (3/3) ... [2021-03-11 20:13:45,741 INFO L111 eAbstractionObserver]: Analyzing ICFG mix053_rmo.opt.i [2021-03-11 20:13:45,745 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-11 20:13:45,748 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-03-11 20:13:45,749 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-11 20:13:45,775 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,775 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,775 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,775 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,776 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,776 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,776 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,776 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,776 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,776 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,776 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,776 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,776 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,776 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,777 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,777 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,777 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,777 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,777 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,777 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,777 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,777 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,777 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,777 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,777 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,778 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,778 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,778 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,778 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,778 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,778 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,778 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,778 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,778 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,778 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,778 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,778 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,778 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,778 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,779 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,779 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,779 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,779 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,779 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,779 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,779 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,779 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,779 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,779 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,779 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,779 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,779 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,779 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,779 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,780 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,780 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,780 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,780 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,780 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,780 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,780 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,780 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,780 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,780 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,780 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,780 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,780 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,780 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,780 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,781 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,782 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,782 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,782 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,782 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,782 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,782 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,782 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,782 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,782 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,782 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,782 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,782 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,782 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,782 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,783 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,783 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,783 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,783 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,783 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,783 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,783 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,783 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,783 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,783 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,783 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,783 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,783 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,783 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,784 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,784 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,784 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,784 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,784 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,784 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,784 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,784 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,784 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,784 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,785 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,785 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,785 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,785 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,786 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,786 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,786 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,786 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,786 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,786 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,786 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,786 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,786 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,786 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,787 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,787 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,787 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,787 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,787 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,787 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,787 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,787 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,787 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,787 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,787 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,787 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,788 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,788 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,788 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,788 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,788 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,788 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,788 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,788 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,788 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,788 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,789 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,789 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,790 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,790 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,790 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,790 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,792 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,792 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,792 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,792 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,792 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,792 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,792 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,792 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,792 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,792 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,792 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,792 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,792 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,793 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,793 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,793 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,793 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,793 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,793 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,793 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,793 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,793 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,793 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,793 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,793 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,793 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,793 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,794 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,795 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,795 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,795 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,795 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,795 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,795 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,795 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,795 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,795 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,795 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,795 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,796 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,796 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,796 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,796 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:13:45,797 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-11 20:13:45,808 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-03-11 20:13:45,821 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-11 20:13:45,821 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-11 20:13:45,821 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-11 20:13:45,821 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-11 20:13:45,822 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-11 20:13:45,822 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-11 20:13:45,822 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-11 20:13:45,822 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-11 20:13:45,829 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 123 places, 112 transitions, 244 flow [2021-03-11 20:13:45,854 INFO L129 PetriNetUnfolder]: 2/108 cut-off events. [2021-03-11 20:13:45,855 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-11 20:13:45,857 INFO L84 FinitePrefix]: Finished finitePrefix Result has 121 conditions, 108 events. 2/108 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 72 event pairs, 0 based on Foata normal form. 0/104 useless extension candidates. Maximal degree in co-relation 73. Up to 2 conditions per place. [2021-03-11 20:13:45,857 INFO L82 GeneralOperation]: Start removeDead. Operand has 123 places, 112 transitions, 244 flow [2021-03-11 20:13:45,861 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 119 places, 108 transitions, 228 flow [2021-03-11 20:13:45,863 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-11 20:13:45,869 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 119 places, 108 transitions, 228 flow [2021-03-11 20:13:45,872 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 119 places, 108 transitions, 228 flow [2021-03-11 20:13:45,873 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 119 places, 108 transitions, 228 flow [2021-03-11 20:13:45,890 INFO L129 PetriNetUnfolder]: 2/108 cut-off events. [2021-03-11 20:13:45,890 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-11 20:13:45,891 INFO L84 FinitePrefix]: Finished finitePrefix Result has 121 conditions, 108 events. 2/108 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 80 event pairs, 0 based on Foata normal form. 0/104 useless extension candidates. Maximal degree in co-relation 73. Up to 2 conditions per place. [2021-03-11 20:13:45,892 INFO L116 LiptonReduction]: Number of co-enabled transitions 2300 [2021-03-11 20:13:46,394 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 58 [2021-03-11 20:13:46,736 WARN L205 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 84 [2021-03-11 20:13:46,860 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-03-11 20:13:49,708 WARN L205 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 120 [2021-03-11 20:13:49,853 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2021-03-11 20:13:50,184 WARN L205 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 120 [2021-03-11 20:13:50,350 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2021-03-11 20:13:50,353 INFO L131 LiptonReduction]: Checked pairs total: 5681 [2021-03-11 20:13:50,354 INFO L133 LiptonReduction]: Total number of compositions: 92 [2021-03-11 20:13:50,355 INFO L182 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 4494 [2021-03-11 20:13:50,369 INFO L129 PetriNetUnfolder]: 0/16 cut-off events. [2021-03-11 20:13:50,369 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-11 20:13:50,369 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:13:50,370 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 20:13:50,374 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 20:13:50,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:13:50,378 INFO L82 PathProgramCache]: Analyzing trace with hash 1216707507, now seen corresponding path program 1 times [2021-03-11 20:13:50,384 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:13:50,384 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175520673] [2021-03-11 20:13:50,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:13:50,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:13:50,560 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:13:50,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 20:13:50,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 20:13:50,567 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175520673] [2021-03-11 20:13:50,568 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:13:50,568 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-11 20:13:50,568 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156543323] [2021-03-11 20:13:50,573 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 20:13:50,573 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:13:50,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 20:13:50,582 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 20:13:50,583 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 204 [2021-03-11 20:13:50,585 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 28 transitions, 68 flow. Second operand has 3 states, 3 states have (on average 177.66666666666666) internal successors, (533), 3 states have internal predecessors, (533), 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) [2021-03-11 20:13:50,585 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:13:50,585 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 204 [2021-03-11 20:13:50,586 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:13:50,614 INFO L129 PetriNetUnfolder]: 9/49 cut-off events. [2021-03-11 20:13:50,614 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-11 20:13:50,614 INFO L84 FinitePrefix]: Finished finitePrefix Result has 84 conditions, 49 events. 9/49 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 122 event pairs, 1 based on Foata normal form. 6/53 useless extension candidates. Maximal degree in co-relation 73. Up to 17 conditions per place. [2021-03-11 20:13:50,615 INFO L132 encePairwiseOnDemand]: 200/204 looper letters, 5 selfloop transitions, 2 changer transitions 0/28 dead transitions. [2021-03-11 20:13:50,615 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 28 transitions, 82 flow [2021-03-11 20:13:50,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 20:13:50,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 20:13:50,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 541 transitions. [2021-03-11 20:13:50,625 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8839869281045751 [2021-03-11 20:13:50,626 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 541 transitions. [2021-03-11 20:13:50,626 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 541 transitions. [2021-03-11 20:13:50,628 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:13:50,629 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 541 transitions. [2021-03-11 20:13:50,633 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 180.33333333333334) internal successors, (541), 3 states have internal predecessors, (541), 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) [2021-03-11 20:13:50,637 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 204.0) internal successors, (816), 4 states have internal predecessors, (816), 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) [2021-03-11 20:13:50,638 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 204.0) internal successors, (816), 4 states have internal predecessors, (816), 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) [2021-03-11 20:13:50,639 INFO L185 Difference]: Start difference. First operand has 40 places, 28 transitions, 68 flow. Second operand 3 states and 541 transitions. [2021-03-11 20:13:50,639 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 28 transitions, 82 flow [2021-03-11 20:13:50,641 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 28 transitions, 78 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-03-11 20:13:50,642 INFO L241 Difference]: Finished difference. Result has 37 places, 26 transitions, 64 flow [2021-03-11 20:13:50,643 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=204, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=64, PETRI_PLACES=37, PETRI_TRANSITIONS=26} [2021-03-11 20:13:50,644 INFO L335 CegarLoopForPetriNet]: 40 programPoint places, -3 predicate places. [2021-03-11 20:13:50,644 INFO L480 AbstractCegarLoop]: Abstraction has has 37 places, 26 transitions, 64 flow [2021-03-11 20:13:50,644 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 177.66666666666666) internal successors, (533), 3 states have internal predecessors, (533), 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) [2021-03-11 20:13:50,644 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:13:50,644 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 20:13:50,645 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-11 20:13:50,645 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 20:13:50,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:13:50,645 INFO L82 PathProgramCache]: Analyzing trace with hash 1706255442, now seen corresponding path program 1 times [2021-03-11 20:13:50,645 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:13:50,645 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449917118] [2021-03-11 20:13:50,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:13:50,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:13:50,717 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-11 20:13:50,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 20:13:50,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:13:50,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 20:13:50,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 20:13:50,731 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449917118] [2021-03-11 20:13:50,731 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:13:50,731 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-11 20:13:50,731 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898225912] [2021-03-11 20:13:50,734 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-11 20:13:50,734 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:13:50,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-11 20:13:50,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-11 20:13:50,741 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 204 [2021-03-11 20:13:50,742 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 26 transitions, 64 flow. Second operand has 4 states, 4 states have (on average 158.75) internal successors, (635), 4 states have internal predecessors, (635), 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) [2021-03-11 20:13:50,742 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:13:50,742 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 204 [2021-03-11 20:13:50,742 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:13:50,919 INFO L129 PetriNetUnfolder]: 600/1168 cut-off events. [2021-03-11 20:13:50,919 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-11 20:13:50,923 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2117 conditions, 1168 events. 600/1168 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 147. Compared 7486 event pairs, 146 based on Foata normal form. 0/1078 useless extension candidates. Maximal degree in co-relation 2108. Up to 403 conditions per place. [2021-03-11 20:13:50,931 INFO L132 encePairwiseOnDemand]: 195/204 looper letters, 9 selfloop transitions, 7 changer transitions 17/49 dead transitions. [2021-03-11 20:13:50,931 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 49 transitions, 176 flow [2021-03-11 20:13:50,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-11 20:13:50,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-11 20:13:50,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 825 transitions. [2021-03-11 20:13:50,937 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8088235294117647 [2021-03-11 20:13:50,937 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 825 transitions. [2021-03-11 20:13:50,937 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 825 transitions. [2021-03-11 20:13:50,938 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:13:50,938 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 825 transitions. [2021-03-11 20:13:50,941 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 165.0) internal successors, (825), 5 states have internal predecessors, (825), 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) [2021-03-11 20:13:50,944 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 204.0) internal successors, (1224), 6 states have internal predecessors, (1224), 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) [2021-03-11 20:13:50,945 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 204.0) internal successors, (1224), 6 states have internal predecessors, (1224), 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) [2021-03-11 20:13:50,945 INFO L185 Difference]: Start difference. First operand has 37 places, 26 transitions, 64 flow. Second operand 5 states and 825 transitions. [2021-03-11 20:13:50,946 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 49 transitions, 176 flow [2021-03-11 20:13:50,946 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 49 transitions, 172 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-11 20:13:50,947 INFO L241 Difference]: Finished difference. Result has 43 places, 31 transitions, 128 flow [2021-03-11 20:13:50,947 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=204, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=128, PETRI_PLACES=43, PETRI_TRANSITIONS=31} [2021-03-11 20:13:50,948 INFO L335 CegarLoopForPetriNet]: 40 programPoint places, 3 predicate places. [2021-03-11 20:13:50,948 INFO L480 AbstractCegarLoop]: Abstraction has has 43 places, 31 transitions, 128 flow [2021-03-11 20:13:50,948 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 158.75) internal successors, (635), 4 states have internal predecessors, (635), 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) [2021-03-11 20:13:50,948 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:13:50,948 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 20:13:50,948 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-11 20:13:50,951 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 20:13:50,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:13:50,951 INFO L82 PathProgramCache]: Analyzing trace with hash 1354276028, now seen corresponding path program 1 times [2021-03-11 20:13:50,951 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:13:50,951 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837255298] [2021-03-11 20:13:50,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:13:50,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:13:51,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:13:51,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 20:13:51,041 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-11 20:13:51,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 20:13:51,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:13:51,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 20:13:51,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 20:13:51,052 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837255298] [2021-03-11 20:13:51,052 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:13:51,052 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 20:13:51,052 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964938101] [2021-03-11 20:13:51,053 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-11 20:13:51,053 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:13:51,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-11 20:13:51,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-11 20:13:51,055 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 204 [2021-03-11 20:13:51,056 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 31 transitions, 128 flow. Second operand has 5 states, 5 states have (on average 158.8) internal successors, (794), 5 states have internal predecessors, (794), 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) [2021-03-11 20:13:51,056 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:13:51,056 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 204 [2021-03-11 20:13:51,056 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:13:51,171 INFO L129 PetriNetUnfolder]: 272/598 cut-off events. [2021-03-11 20:13:51,171 INFO L130 PetriNetUnfolder]: For 517/1074 co-relation queries the response was YES. [2021-03-11 20:13:51,172 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1972 conditions, 598 events. 272/598 cut-off events. For 517/1074 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 3569 event pairs, 24 based on Foata normal form. 53/629 useless extension candidates. Maximal degree in co-relation 1959. Up to 284 conditions per place. [2021-03-11 20:13:51,174 INFO L132 encePairwiseOnDemand]: 195/204 looper letters, 15 selfloop transitions, 11 changer transitions 22/64 dead transitions. [2021-03-11 20:13:51,175 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 64 transitions, 420 flow [2021-03-11 20:13:51,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-11 20:13:51,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-11 20:13:51,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1148 transitions. [2021-03-11 20:13:51,177 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.803921568627451 [2021-03-11 20:13:51,177 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1148 transitions. [2021-03-11 20:13:51,177 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1148 transitions. [2021-03-11 20:13:51,177 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:13:51,177 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1148 transitions. [2021-03-11 20:13:51,179 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 164.0) internal successors, (1148), 7 states have internal predecessors, (1148), 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) [2021-03-11 20:13:51,181 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 204.0) internal successors, (1632), 8 states have internal predecessors, (1632), 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) [2021-03-11 20:13:51,182 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 204.0) internal successors, (1632), 8 states have internal predecessors, (1632), 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) [2021-03-11 20:13:51,182 INFO L185 Difference]: Start difference. First operand has 43 places, 31 transitions, 128 flow. Second operand 7 states and 1148 transitions. [2021-03-11 20:13:51,182 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 64 transitions, 420 flow [2021-03-11 20:13:51,186 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 64 transitions, 374 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-11 20:13:51,187 INFO L241 Difference]: Finished difference. Result has 50 places, 38 transitions, 218 flow [2021-03-11 20:13:51,187 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=204, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=218, PETRI_PLACES=50, PETRI_TRANSITIONS=38} [2021-03-11 20:13:51,187 INFO L335 CegarLoopForPetriNet]: 40 programPoint places, 10 predicate places. [2021-03-11 20:13:51,187 INFO L480 AbstractCegarLoop]: Abstraction has has 50 places, 38 transitions, 218 flow [2021-03-11 20:13:51,188 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 158.8) internal successors, (794), 5 states have internal predecessors, (794), 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) [2021-03-11 20:13:51,188 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:13:51,188 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 20:13:51,188 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-11 20:13:51,188 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 20:13:51,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:13:51,188 INFO L82 PathProgramCache]: Analyzing trace with hash 1354262574, now seen corresponding path program 1 times [2021-03-11 20:13:51,188 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:13:51,189 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172930611] [2021-03-11 20:13:51,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:13:51,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:13:51,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:13:51,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 20:13:51,255 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-11 20:13:51,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 20:13:51,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:13:51,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 20:13:51,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 20:13:51,270 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172930611] [2021-03-11 20:13:51,270 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:13:51,270 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 20:13:51,270 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163772001] [2021-03-11 20:13:51,270 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-11 20:13:51,270 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:13:51,270 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-11 20:13:51,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-11 20:13:51,271 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 204 [2021-03-11 20:13:51,272 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 38 transitions, 218 flow. Second operand has 5 states, 5 states have (on average 158.8) internal successors, (794), 5 states have internal predecessors, (794), 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) [2021-03-11 20:13:51,272 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:13:51,272 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 204 [2021-03-11 20:13:51,272 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:13:51,366 INFO L129 PetriNetUnfolder]: 220/507 cut-off events. [2021-03-11 20:13:51,366 INFO L130 PetriNetUnfolder]: For 1640/2424 co-relation queries the response was YES. [2021-03-11 20:13:51,368 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2008 conditions, 507 events. 220/507 cut-off events. For 1640/2424 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 2962 event pairs, 45 based on Foata normal form. 50/540 useless extension candidates. Maximal degree in co-relation 1989. Up to 231 conditions per place. [2021-03-11 20:13:51,370 INFO L132 encePairwiseOnDemand]: 195/204 looper letters, 16 selfloop transitions, 17 changer transitions 15/64 dead transitions. [2021-03-11 20:13:51,370 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 64 transitions, 506 flow [2021-03-11 20:13:51,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-11 20:13:51,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-11 20:13:51,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1145 transitions. [2021-03-11 20:13:51,373 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8018207282913166 [2021-03-11 20:13:51,373 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1145 transitions. [2021-03-11 20:13:51,373 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1145 transitions. [2021-03-11 20:13:51,373 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:13:51,373 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1145 transitions. [2021-03-11 20:13:51,375 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 163.57142857142858) internal successors, (1145), 7 states have internal predecessors, (1145), 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) [2021-03-11 20:13:51,377 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 204.0) internal successors, (1632), 8 states have internal predecessors, (1632), 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) [2021-03-11 20:13:51,378 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 204.0) internal successors, (1632), 8 states have internal predecessors, (1632), 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) [2021-03-11 20:13:51,378 INFO L185 Difference]: Start difference. First operand has 50 places, 38 transitions, 218 flow. Second operand 7 states and 1145 transitions. [2021-03-11 20:13:51,379 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 64 transitions, 506 flow [2021-03-11 20:13:51,383 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 64 transitions, 498 flow, removed 4 selfloop flow, removed 0 redundant places. [2021-03-11 20:13:51,385 INFO L241 Difference]: Finished difference. Result has 58 places, 45 transitions, 338 flow [2021-03-11 20:13:51,386 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=204, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=338, PETRI_PLACES=58, PETRI_TRANSITIONS=45} [2021-03-11 20:13:51,386 INFO L335 CegarLoopForPetriNet]: 40 programPoint places, 18 predicate places. [2021-03-11 20:13:51,386 INFO L480 AbstractCegarLoop]: Abstraction has has 58 places, 45 transitions, 338 flow [2021-03-11 20:13:51,386 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 158.8) internal successors, (794), 5 states have internal predecessors, (794), 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) [2021-03-11 20:13:51,386 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:13:51,386 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 20:13:51,386 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-11 20:13:51,387 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 20:13:51,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:13:51,387 INFO L82 PathProgramCache]: Analyzing trace with hash -967164668, now seen corresponding path program 1 times [2021-03-11 20:13:51,387 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:13:51,387 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160568614] [2021-03-11 20:13:51,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:13:51,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:13:51,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:13:51,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 20:13:51,444 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-11 20:13:51,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 20:13:51,450 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:13:51,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 20:13:51,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 20:13:51,451 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160568614] [2021-03-11 20:13:51,451 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:13:51,451 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 20:13:51,451 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109652187] [2021-03-11 20:13:51,452 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-11 20:13:51,452 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:13:51,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-11 20:13:51,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-11 20:13:51,453 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 204 [2021-03-11 20:13:51,453 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 45 transitions, 338 flow. Second operand has 4 states, 4 states have (on average 164.75) internal successors, (659), 4 states have internal predecessors, (659), 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) [2021-03-11 20:13:51,453 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:13:51,453 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 204 [2021-03-11 20:13:51,454 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:13:51,624 INFO L129 PetriNetUnfolder]: 763/1496 cut-off events. [2021-03-11 20:13:51,624 INFO L130 PetriNetUnfolder]: For 2393/2671 co-relation queries the response was YES. [2021-03-11 20:13:51,631 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4283 conditions, 1496 events. 763/1496 cut-off events. For 2393/2671 co-relation queries the response was YES. Maximal size of possible extension queue 231. Compared 10847 event pairs, 327 based on Foata normal form. 128/1469 useless extension candidates. Maximal degree in co-relation 4257. Up to 828 conditions per place. [2021-03-11 20:13:51,637 INFO L132 encePairwiseOnDemand]: 197/204 looper letters, 10 selfloop transitions, 10 changer transitions 0/58 dead transitions. [2021-03-11 20:13:51,638 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 58 transitions, 404 flow [2021-03-11 20:13:51,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-11 20:13:51,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-11 20:13:51,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 842 transitions. [2021-03-11 20:13:51,640 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8254901960784313 [2021-03-11 20:13:51,640 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 842 transitions. [2021-03-11 20:13:51,640 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 842 transitions. [2021-03-11 20:13:51,640 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:13:51,640 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 842 transitions. [2021-03-11 20:13:51,641 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 168.4) internal successors, (842), 5 states have internal predecessors, (842), 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) [2021-03-11 20:13:51,643 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 204.0) internal successors, (1224), 6 states have internal predecessors, (1224), 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) [2021-03-11 20:13:51,643 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 204.0) internal successors, (1224), 6 states have internal predecessors, (1224), 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) [2021-03-11 20:13:51,643 INFO L185 Difference]: Start difference. First operand has 58 places, 45 transitions, 338 flow. Second operand 5 states and 842 transitions. [2021-03-11 20:13:51,643 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 58 transitions, 404 flow [2021-03-11 20:13:51,651 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 58 transitions, 382 flow, removed 11 selfloop flow, removed 5 redundant places. [2021-03-11 20:13:51,653 INFO L241 Difference]: Finished difference. Result has 57 places, 54 transitions, 391 flow [2021-03-11 20:13:51,653 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=204, PETRI_DIFFERENCE_MINUEND_FLOW=316, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=391, PETRI_PLACES=57, PETRI_TRANSITIONS=54} [2021-03-11 20:13:51,653 INFO L335 CegarLoopForPetriNet]: 40 programPoint places, 17 predicate places. [2021-03-11 20:13:51,653 INFO L480 AbstractCegarLoop]: Abstraction has has 57 places, 54 transitions, 391 flow [2021-03-11 20:13:51,653 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 164.75) internal successors, (659), 4 states have internal predecessors, (659), 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) [2021-03-11 20:13:51,653 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:13:51,654 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 20:13:51,654 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-11 20:13:51,654 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 20:13:51,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:13:51,654 INFO L82 PathProgramCache]: Analyzing trace with hash -416468190, now seen corresponding path program 1 times [2021-03-11 20:13:51,654 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:13:51,654 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33931490] [2021-03-11 20:13:51,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:13:51,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:13:51,696 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:13:51,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 20:13:51,697 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:13:51,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 20:13:51,699 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:13:51,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 20:13:51,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 20:13:51,705 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33931490] [2021-03-11 20:13:51,706 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:13:51,706 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 20:13:51,706 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917017708] [2021-03-11 20:13:51,706 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-11 20:13:51,706 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:13:51,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-11 20:13:51,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-11 20:13:51,707 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 204 [2021-03-11 20:13:51,708 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 54 transitions, 391 flow. Second operand has 4 states, 4 states have (on average 170.0) internal successors, (680), 4 states have internal predecessors, (680), 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) [2021-03-11 20:13:51,708 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:13:51,708 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 204 [2021-03-11 20:13:51,708 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:13:51,914 INFO L129 PetriNetUnfolder]: 1189/2344 cut-off events. [2021-03-11 20:13:51,914 INFO L130 PetriNetUnfolder]: For 4036/4758 co-relation queries the response was YES. [2021-03-11 20:13:51,925 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7977 conditions, 2344 events. 1189/2344 cut-off events. For 4036/4758 co-relation queries the response was YES. Maximal size of possible extension queue 335. Compared 18624 event pairs, 532 based on Foata normal form. 103/2168 useless extension candidates. Maximal degree in co-relation 7951. Up to 1477 conditions per place. [2021-03-11 20:13:51,935 INFO L132 encePairwiseOnDemand]: 200/204 looper letters, 6 selfloop transitions, 10 changer transitions 2/57 dead transitions. [2021-03-11 20:13:51,935 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 57 transitions, 449 flow [2021-03-11 20:13:51,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-11 20:13:51,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-11 20:13:51,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 856 transitions. [2021-03-11 20:13:51,937 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8392156862745098 [2021-03-11 20:13:51,937 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 856 transitions. [2021-03-11 20:13:51,937 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 856 transitions. [2021-03-11 20:13:51,937 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:13:51,937 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 856 transitions. [2021-03-11 20:13:51,938 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 171.2) internal successors, (856), 5 states have internal predecessors, (856), 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) [2021-03-11 20:13:51,940 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 204.0) internal successors, (1224), 6 states have internal predecessors, (1224), 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) [2021-03-11 20:13:51,940 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 204.0) internal successors, (1224), 6 states have internal predecessors, (1224), 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) [2021-03-11 20:13:51,940 INFO L185 Difference]: Start difference. First operand has 57 places, 54 transitions, 391 flow. Second operand 5 states and 856 transitions. [2021-03-11 20:13:51,940 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 57 transitions, 449 flow [2021-03-11 20:13:51,951 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 57 transitions, 442 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-03-11 20:13:51,953 INFO L241 Difference]: Finished difference. Result has 63 places, 54 transitions, 421 flow [2021-03-11 20:13:51,953 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=204, PETRI_DIFFERENCE_MINUEND_FLOW=384, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=421, PETRI_PLACES=63, PETRI_TRANSITIONS=54} [2021-03-11 20:13:51,953 INFO L335 CegarLoopForPetriNet]: 40 programPoint places, 23 predicate places. [2021-03-11 20:13:51,953 INFO L480 AbstractCegarLoop]: Abstraction has has 63 places, 54 transitions, 421 flow [2021-03-11 20:13:51,953 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 170.0) internal successors, (680), 4 states have internal predecessors, (680), 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) [2021-03-11 20:13:51,953 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:13:51,954 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 20:13:51,954 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-11 20:13:51,954 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 20:13:51,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:13:51,954 INFO L82 PathProgramCache]: Analyzing trace with hash 1649092040, now seen corresponding path program 1 times [2021-03-11 20:13:51,954 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:13:51,954 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400417440] [2021-03-11 20:13:51,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:13:51,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:13:51,992 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:13:51,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 20:13:51,995 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:13:51,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 20:13:52,001 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-11 20:13:52,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 20:13:52,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:13:52,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 20:13:52,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 20:13:52,007 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400417440] [2021-03-11 20:13:52,007 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:13:52,007 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-11 20:13:52,007 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129995875] [2021-03-11 20:13:52,008 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-11 20:13:52,008 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:13:52,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-11 20:13:52,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-11 20:13:52,009 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 204 [2021-03-11 20:13:52,010 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 54 transitions, 421 flow. Second operand has 5 states, 5 states have (on average 164.8) internal successors, (824), 5 states have internal predecessors, (824), 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) [2021-03-11 20:13:52,010 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:13:52,010 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 204 [2021-03-11 20:13:52,010 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:13:52,223 INFO L129 PetriNetUnfolder]: 777/1701 cut-off events. [2021-03-11 20:13:52,224 INFO L130 PetriNetUnfolder]: For 3394/5078 co-relation queries the response was YES. [2021-03-11 20:13:52,232 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6894 conditions, 1701 events. 777/1701 cut-off events. For 3394/5078 co-relation queries the response was YES. Maximal size of possible extension queue 272. Compared 13853 event pairs, 147 based on Foata normal form. 479/2023 useless extension candidates. Maximal degree in co-relation 6865. Up to 1205 conditions per place. [2021-03-11 20:13:52,239 INFO L132 encePairwiseOnDemand]: 197/204 looper letters, 10 selfloop transitions, 19 changer transitions 0/67 dead transitions. [2021-03-11 20:13:52,239 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 67 transitions, 555 flow [2021-03-11 20:13:52,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-11 20:13:52,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-11 20:13:52,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1179 transitions. [2021-03-11 20:13:52,241 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8256302521008403 [2021-03-11 20:13:52,241 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1179 transitions. [2021-03-11 20:13:52,241 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1179 transitions. [2021-03-11 20:13:52,242 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:13:52,242 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1179 transitions. [2021-03-11 20:13:52,244 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 168.42857142857142) internal successors, (1179), 7 states have internal predecessors, (1179), 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) [2021-03-11 20:13:52,245 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 204.0) internal successors, (1632), 8 states have internal predecessors, (1632), 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) [2021-03-11 20:13:52,247 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 204.0) internal successors, (1632), 8 states have internal predecessors, (1632), 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) [2021-03-11 20:13:52,247 INFO L185 Difference]: Start difference. First operand has 63 places, 54 transitions, 421 flow. Second operand 7 states and 1179 transitions. [2021-03-11 20:13:52,247 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 67 transitions, 555 flow [2021-03-11 20:13:52,257 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 67 transitions, 541 flow, removed 3 selfloop flow, removed 1 redundant places. [2021-03-11 20:13:52,259 INFO L241 Difference]: Finished difference. Result has 71 places, 63 transitions, 541 flow [2021-03-11 20:13:52,259 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=204, PETRI_DIFFERENCE_MINUEND_FLOW=407, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=541, PETRI_PLACES=71, PETRI_TRANSITIONS=63} [2021-03-11 20:13:52,259 INFO L335 CegarLoopForPetriNet]: 40 programPoint places, 31 predicate places. [2021-03-11 20:13:52,259 INFO L480 AbstractCegarLoop]: Abstraction has has 71 places, 63 transitions, 541 flow [2021-03-11 20:13:52,259 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 164.8) internal successors, (824), 5 states have internal predecessors, (824), 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) [2021-03-11 20:13:52,259 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:13:52,260 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 20:13:52,260 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-11 20:13:52,260 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 20:13:52,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:13:52,260 INFO L82 PathProgramCache]: Analyzing trace with hash 1364164585, now seen corresponding path program 1 times [2021-03-11 20:13:52,260 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:13:52,260 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166148748] [2021-03-11 20:13:52,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:13:52,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:13:52,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:13:52,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 20:13:52,321 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:13:52,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 20:13:52,324 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:13:52,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 20:13:52,329 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-11 20:13:52,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 20:13:52,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:13:52,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 20:13:52,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 20:13:52,336 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166148748] [2021-03-11 20:13:52,336 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:13:52,336 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-11 20:13:52,336 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889811793] [2021-03-11 20:13:52,336 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-11 20:13:52,336 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:13:52,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-11 20:13:52,337 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-11 20:13:52,338 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 204 [2021-03-11 20:13:52,338 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 63 transitions, 541 flow. Second operand has 6 states, 6 states have (on average 164.83333333333334) internal successors, (989), 6 states have internal predecessors, (989), 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) [2021-03-11 20:13:52,338 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:13:52,338 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 204 [2021-03-11 20:13:52,338 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:13:52,511 INFO L129 PetriNetUnfolder]: 589/1341 cut-off events. [2021-03-11 20:13:52,511 INFO L130 PetriNetUnfolder]: For 5548/9026 co-relation queries the response was YES. [2021-03-11 20:13:52,518 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7391 conditions, 1341 events. 589/1341 cut-off events. For 5548/9026 co-relation queries the response was YES. Maximal size of possible extension queue 249. Compared 10823 event pairs, 25 based on Foata normal form. 660/1877 useless extension candidates. Maximal degree in co-relation 7358. Up to 1065 conditions per place. [2021-03-11 20:13:52,524 INFO L132 encePairwiseOnDemand]: 197/204 looper letters, 6 selfloop transitions, 28 changer transitions 6/76 dead transitions. [2021-03-11 20:13:52,525 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 76 transitions, 743 flow [2021-03-11 20:13:52,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-11 20:13:52,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-11 20:13:52,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1516 transitions. [2021-03-11 20:13:52,527 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8257080610021786 [2021-03-11 20:13:52,527 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1516 transitions. [2021-03-11 20:13:52,528 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1516 transitions. [2021-03-11 20:13:52,528 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:13:52,528 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1516 transitions. [2021-03-11 20:13:52,530 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 168.44444444444446) internal successors, (1516), 9 states have internal predecessors, (1516), 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) [2021-03-11 20:13:52,533 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 204.0) internal successors, (2040), 10 states have internal predecessors, (2040), 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) [2021-03-11 20:13:52,533 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 204.0) internal successors, (2040), 10 states have internal predecessors, (2040), 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) [2021-03-11 20:13:52,533 INFO L185 Difference]: Start difference. First operand has 71 places, 63 transitions, 541 flow. Second operand 9 states and 1516 transitions. [2021-03-11 20:13:52,533 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 76 transitions, 743 flow [2021-03-11 20:13:52,561 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 76 transitions, 691 flow, removed 18 selfloop flow, removed 3 redundant places. [2021-03-11 20:13:52,562 INFO L241 Difference]: Finished difference. Result has 79 places, 70 transitions, 647 flow [2021-03-11 20:13:52,562 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=204, PETRI_DIFFERENCE_MINUEND_FLOW=489, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=647, PETRI_PLACES=79, PETRI_TRANSITIONS=70} [2021-03-11 20:13:52,562 INFO L335 CegarLoopForPetriNet]: 40 programPoint places, 39 predicate places. [2021-03-11 20:13:52,563 INFO L480 AbstractCegarLoop]: Abstraction has has 79 places, 70 transitions, 647 flow [2021-03-11 20:13:52,564 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 164.83333333333334) internal successors, (989), 6 states have internal predecessors, (989), 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) [2021-03-11 20:13:52,564 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:13:52,564 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 20:13:52,564 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-11 20:13:52,564 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 20:13:52,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:13:52,564 INFO L82 PathProgramCache]: Analyzing trace with hash 1411062979, now seen corresponding path program 1 times [2021-03-11 20:13:52,564 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:13:52,564 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126500782] [2021-03-11 20:13:52,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:13:52,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:13:52,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:13:52,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 20:13:52,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:13:52,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 20:13:52,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:13:52,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 20:13:52,622 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:13:52,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 20:13:52,627 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-11 20:13:52,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 20:13:52,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:13:52,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 20:13:52,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 20:13:52,637 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126500782] [2021-03-11 20:13:52,637 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:13:52,638 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-11 20:13:52,638 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476668852] [2021-03-11 20:13:52,638 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-11 20:13:52,638 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:13:52,638 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-11 20:13:52,638 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-11 20:13:52,639 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 204 [2021-03-11 20:13:52,640 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 70 transitions, 647 flow. Second operand has 7 states, 7 states have (on average 164.85714285714286) internal successors, (1154), 7 states have internal predecessors, (1154), 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) [2021-03-11 20:13:52,640 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:13:52,640 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 204 [2021-03-11 20:13:52,640 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:13:52,860 INFO L129 PetriNetUnfolder]: 524/1203 cut-off events. [2021-03-11 20:13:52,861 INFO L130 PetriNetUnfolder]: For 7279/9233 co-relation queries the response was YES. [2021-03-11 20:13:52,867 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7072 conditions, 1203 events. 524/1203 cut-off events. For 7279/9233 co-relation queries the response was YES. Maximal size of possible extension queue 249. Compared 9810 event pairs, 11 based on Foata normal form. 475/1555 useless extension candidates. Maximal degree in co-relation 7042. Up to 670 conditions per place. [2021-03-11 20:13:52,871 INFO L132 encePairwiseOnDemand]: 197/204 looper letters, 2 selfloop transitions, 33 changer transitions 8/75 dead transitions. [2021-03-11 20:13:52,871 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 75 transitions, 781 flow [2021-03-11 20:13:52,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 20:13:52,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-11 20:13:52,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1845 transitions. [2021-03-11 20:13:52,874 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8221925133689839 [2021-03-11 20:13:52,875 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1845 transitions. [2021-03-11 20:13:52,875 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1845 transitions. [2021-03-11 20:13:52,875 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:13:52,875 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1845 transitions. [2021-03-11 20:13:52,878 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 167.72727272727272) internal successors, (1845), 11 states have internal predecessors, (1845), 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) [2021-03-11 20:13:52,881 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 204.0) internal successors, (2448), 12 states have internal predecessors, (2448), 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) [2021-03-11 20:13:52,881 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 204.0) internal successors, (2448), 12 states have internal predecessors, (2448), 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) [2021-03-11 20:13:52,881 INFO L185 Difference]: Start difference. First operand has 79 places, 70 transitions, 647 flow. Second operand 11 states and 1845 transitions. [2021-03-11 20:13:52,881 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 75 transitions, 781 flow [2021-03-11 20:13:52,952 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 75 transitions, 664 flow, removed 44 selfloop flow, removed 8 redundant places. [2021-03-11 20:13:52,953 INFO L241 Difference]: Finished difference. Result has 82 places, 67 transitions, 588 flow [2021-03-11 20:13:52,953 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=204, PETRI_DIFFERENCE_MINUEND_FLOW=530, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=588, PETRI_PLACES=82, PETRI_TRANSITIONS=67} [2021-03-11 20:13:52,953 INFO L335 CegarLoopForPetriNet]: 40 programPoint places, 42 predicate places. [2021-03-11 20:13:52,954 INFO L480 AbstractCegarLoop]: Abstraction has has 82 places, 67 transitions, 588 flow [2021-03-11 20:13:52,954 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 164.85714285714286) internal successors, (1154), 7 states have internal predecessors, (1154), 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) [2021-03-11 20:13:52,954 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:13:52,954 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 20:13:52,954 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-11 20:13:52,954 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 20:13:52,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:13:52,955 INFO L82 PathProgramCache]: Analyzing trace with hash 403722303, now seen corresponding path program 1 times [2021-03-11 20:13:52,955 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:13:52,955 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530675806] [2021-03-11 20:13:52,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:13:52,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:13:53,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:13:53,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 20:13:53,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:13:53,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 20:13:53,025 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:13:53,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 20:13:53,030 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-11 20:13:53,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 20:13:53,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:13:53,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 20:13:53,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 20:13:53,041 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530675806] [2021-03-11 20:13:53,041 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:13:53,041 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-11 20:13:53,041 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466642758] [2021-03-11 20:13:53,042 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-11 20:13:53,042 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:13:53,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-11 20:13:53,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-03-11 20:13:53,044 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 204 [2021-03-11 20:13:53,044 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 67 transitions, 588 flow. Second operand has 6 states, 6 states have (on average 156.66666666666666) internal successors, (940), 6 states have internal predecessors, (940), 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) [2021-03-11 20:13:53,044 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:13:53,044 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 204 [2021-03-11 20:13:53,044 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:13:53,181 INFO L129 PetriNetUnfolder]: 559/1322 cut-off events. [2021-03-11 20:13:53,181 INFO L130 PetriNetUnfolder]: For 4563/5325 co-relation queries the response was YES. [2021-03-11 20:13:53,188 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5967 conditions, 1322 events. 559/1322 cut-off events. For 4563/5325 co-relation queries the response was YES. Maximal size of possible extension queue 285. Compared 10900 event pairs, 7 based on Foata normal form. 13/1205 useless extension candidates. Maximal degree in co-relation 5931. Up to 375 conditions per place. [2021-03-11 20:13:53,191 INFO L132 encePairwiseOnDemand]: 194/204 looper letters, 10 selfloop transitions, 15 changer transitions 25/93 dead transitions. [2021-03-11 20:13:53,191 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 93 transitions, 938 flow [2021-03-11 20:13:53,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-11 20:13:53,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-11 20:13:53,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1116 transitions. [2021-03-11 20:13:53,193 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7815126050420168 [2021-03-11 20:13:53,193 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1116 transitions. [2021-03-11 20:13:53,193 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1116 transitions. [2021-03-11 20:13:53,194 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:13:53,194 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1116 transitions. [2021-03-11 20:13:53,196 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 159.42857142857142) internal successors, (1116), 7 states have internal predecessors, (1116), 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) [2021-03-11 20:13:53,197 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 204.0) internal successors, (1632), 8 states have internal predecessors, (1632), 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) [2021-03-11 20:13:53,197 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 204.0) internal successors, (1632), 8 states have internal predecessors, (1632), 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) [2021-03-11 20:13:53,198 INFO L185 Difference]: Start difference. First operand has 82 places, 67 transitions, 588 flow. Second operand 7 states and 1116 transitions. [2021-03-11 20:13:53,198 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 93 transitions, 938 flow [2021-03-11 20:13:53,245 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 93 transitions, 746 flow, removed 43 selfloop flow, removed 14 redundant places. [2021-03-11 20:13:53,248 INFO L241 Difference]: Finished difference. Result has 76 places, 65 transitions, 465 flow [2021-03-11 20:13:53,248 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=204, PETRI_DIFFERENCE_MINUEND_FLOW=439, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=465, PETRI_PLACES=76, PETRI_TRANSITIONS=65} [2021-03-11 20:13:53,248 INFO L335 CegarLoopForPetriNet]: 40 programPoint places, 36 predicate places. [2021-03-11 20:13:53,248 INFO L480 AbstractCegarLoop]: Abstraction has has 76 places, 65 transitions, 465 flow [2021-03-11 20:13:53,249 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 156.66666666666666) internal successors, (940), 6 states have internal predecessors, (940), 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) [2021-03-11 20:13:53,249 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:13:53,249 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 20:13:53,249 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-11 20:13:53,249 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 20:13:53,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:13:53,249 INFO L82 PathProgramCache]: Analyzing trace with hash -1052625089, now seen corresponding path program 2 times [2021-03-11 20:13:53,250 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:13:53,250 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339559050] [2021-03-11 20:13:53,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:13:53,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:13:53,302 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:13:53,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 20:13:53,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:13:53,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 20:13:53,306 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-11 20:13:53,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 20:13:53,314 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:13:53,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 20:13:53,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 20:13:53,317 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339559050] [2021-03-11 20:13:53,317 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:13:53,317 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-11 20:13:53,317 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277026613] [2021-03-11 20:13:53,317 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-11 20:13:53,317 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:13:53,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-11 20:13:53,319 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-11 20:13:53,320 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 204 [2021-03-11 20:13:53,321 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 65 transitions, 465 flow. Second operand has 5 states, 5 states have (on average 159.8) internal successors, (799), 5 states have internal predecessors, (799), 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) [2021-03-11 20:13:53,321 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:13:53,321 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 204 [2021-03-11 20:13:53,321 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:13:53,387 INFO L129 PetriNetUnfolder]: 302/727 cut-off events. [2021-03-11 20:13:53,387 INFO L130 PetriNetUnfolder]: For 1398/1484 co-relation queries the response was YES. [2021-03-11 20:13:53,390 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2727 conditions, 727 events. 302/727 cut-off events. For 1398/1484 co-relation queries the response was YES. Maximal size of possible extension queue 138. Compared 5418 event pairs, 7 based on Foata normal form. 5/671 useless extension candidates. Maximal degree in co-relation 2703. Up to 205 conditions per place. [2021-03-11 20:13:53,395 INFO L132 encePairwiseOnDemand]: 195/204 looper letters, 5 selfloop transitions, 7 changer transitions 27/67 dead transitions. [2021-03-11 20:13:53,395 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 67 transitions, 528 flow [2021-03-11 20:13:53,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-11 20:13:53,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-11 20:13:53,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 807 transitions. [2021-03-11 20:13:53,396 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7911764705882353 [2021-03-11 20:13:53,397 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 807 transitions. [2021-03-11 20:13:53,397 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 807 transitions. [2021-03-11 20:13:53,397 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:13:53,397 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 807 transitions. [2021-03-11 20:13:53,398 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 161.4) internal successors, (807), 5 states have internal predecessors, (807), 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) [2021-03-11 20:13:53,399 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 204.0) internal successors, (1224), 6 states have internal predecessors, (1224), 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) [2021-03-11 20:13:53,400 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 204.0) internal successors, (1224), 6 states have internal predecessors, (1224), 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) [2021-03-11 20:13:53,400 INFO L185 Difference]: Start difference. First operand has 76 places, 65 transitions, 465 flow. Second operand 5 states and 807 transitions. [2021-03-11 20:13:53,400 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 67 transitions, 528 flow [2021-03-11 20:13:53,411 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 67 transitions, 503 flow, removed 3 selfloop flow, removed 4 redundant places. [2021-03-11 20:13:53,412 INFO L241 Difference]: Finished difference. Result has 76 places, 40 transitions, 260 flow [2021-03-11 20:13:53,413 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=204, PETRI_DIFFERENCE_MINUEND_FLOW=443, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=260, PETRI_PLACES=76, PETRI_TRANSITIONS=40} [2021-03-11 20:13:53,413 INFO L335 CegarLoopForPetriNet]: 40 programPoint places, 36 predicate places. [2021-03-11 20:13:53,413 INFO L480 AbstractCegarLoop]: Abstraction has has 76 places, 40 transitions, 260 flow [2021-03-11 20:13:53,413 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 159.8) internal successors, (799), 5 states have internal predecessors, (799), 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) [2021-03-11 20:13:53,413 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:13:53,413 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 20:13:53,413 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-03-11 20:13:53,414 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 20:13:53,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:13:53,414 INFO L82 PathProgramCache]: Analyzing trace with hash -1854928157, now seen corresponding path program 3 times [2021-03-11 20:13:53,414 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:13:53,414 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675558838] [2021-03-11 20:13:53,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:13:53,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-11 20:13:53,449 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-11 20:13:53,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-11 20:13:53,476 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-11 20:13:53,506 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-11 20:13:53,506 INFO L620 BasicCegarLoop]: Counterexample might be feasible [2021-03-11 20:13:53,507 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-03-11 20:13:53,593 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.03 08:13:53 BasicIcfg [2021-03-11 20:13:53,593 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-11 20:13:53,594 INFO L168 Benchmark]: Toolchain (without parser) took 9388.92 ms. Allocated memory was 255.9 MB in the beginning and 616.6 MB in the end (delta: 360.7 MB). Free memory was 236.0 MB in the beginning and 589.1 MB in the end (delta: -353.1 MB). Peak memory consumption was 294.8 MB. Max. memory is 16.0 GB. [2021-03-11 20:13:53,594 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 255.9 MB. Free memory was 238.1 MB in the beginning and 238.1 MB in the end (delta: 1.6 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-11 20:13:53,594 INFO L168 Benchmark]: CACSL2BoogieTranslator took 436.36 ms. Allocated memory was 255.9 MB in the beginning and 341.8 MB in the end (delta: 86.0 MB). Free memory was 235.5 MB in the beginning and 302.0 MB in the end (delta: -66.5 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.0 GB. [2021-03-11 20:13:53,594 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.77 ms. Allocated memory is still 341.8 MB. Free memory was 302.0 MB in the beginning and 299.7 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-11 20:13:53,594 INFO L168 Benchmark]: Boogie Preprocessor took 21.69 ms. Allocated memory is still 341.8 MB. Free memory was 299.7 MB in the beginning and 297.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-11 20:13:53,595 INFO L168 Benchmark]: RCFGBuilder took 1036.51 ms. Allocated memory is still 341.8 MB. Free memory was 297.6 MB in the beginning and 274.1 MB in the end (delta: 23.4 MB). Peak memory consumption was 49.6 MB. Max. memory is 16.0 GB. [2021-03-11 20:13:53,595 INFO L168 Benchmark]: TraceAbstraction took 7855.55 ms. Allocated memory was 341.8 MB in the beginning and 616.6 MB in the end (delta: 274.7 MB). Free memory was 273.1 MB in the beginning and 589.1 MB in the end (delta: -316.0 MB). Peak memory consumption was 246.0 MB. Max. memory is 16.0 GB. [2021-03-11 20:13:53,596 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 255.9 MB. Free memory was 238.1 MB in the beginning and 238.1 MB in the end (delta: 1.6 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 436.36 ms. Allocated memory was 255.9 MB in the beginning and 341.8 MB in the end (delta: 86.0 MB). Free memory was 235.5 MB in the beginning and 302.0 MB in the end (delta: -66.5 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 32.77 ms. Allocated memory is still 341.8 MB. Free memory was 302.0 MB in the beginning and 299.7 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 21.69 ms. Allocated memory is still 341.8 MB. Free memory was 299.7 MB in the beginning and 297.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 1036.51 ms. Allocated memory is still 341.8 MB. Free memory was 297.6 MB in the beginning and 274.1 MB in the end (delta: 23.4 MB). Peak memory consumption was 49.6 MB. Max. memory is 16.0 GB. * TraceAbstraction took 7855.55 ms. Allocated memory was 341.8 MB in the beginning and 616.6 MB in the end (delta: 274.7 MB). Free memory was 273.1 MB in the beginning and 589.1 MB in the end (delta: -316.0 MB). Peak memory consumption was 246.0 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4481.4ms, 119 PlacesBefore, 40 PlacesAfterwards, 108 TransitionsBefore, 28 TransitionsAfterwards, 2300 CoEnabledTransitionPairs, 7 FixpointIterations, 39 TrivialSequentialCompositions, 42 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 1 ChoiceCompositions, 92 TotalNumberOfCompositions, 5681 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3058, positive: 2891, positive conditional: 0, positive unconditional: 2891, negative: 167, negative conditional: 0, negative unconditional: 167, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1635, positive: 1592, positive conditional: 0, positive unconditional: 1592, negative: 43, negative conditional: 0, negative unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1635, positive: 1557, positive conditional: 0, positive unconditional: 1557, negative: 78, negative conditional: 0, negative unconditional: 78, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 78, positive: 35, positive conditional: 0, positive unconditional: 35, negative: 43, negative conditional: 0, negative unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 348, positive: 86, positive conditional: 0, positive unconditional: 86, negative: 262, negative conditional: 0, negative unconditional: 262, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3058, positive: 1299, positive conditional: 0, positive unconditional: 1299, negative: 124, negative conditional: 0, negative unconditional: 124, unknown: 1635, unknown conditional: 0, unknown unconditional: 1635] , Statistics on independence cache: Total cache size (in pairs): 197, Positive cache size: 181, Positive conditional cache size: 0, Positive unconditional cache size: 181, Negative cache size: 16, Negative conditional cache size: 0, Negative unconditional cache size: 16 - CounterExampleResult [Line: 18]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L710] 0 int __unbuffered_cnt = 0; [L712] 0 int __unbuffered_p2_EAX = 0; [L714] 0 int __unbuffered_p3_EAX = 0; [L716] 0 int a = 0; [L717] 0 _Bool main$tmp_guard0; [L718] 0 _Bool main$tmp_guard1; [L720] 0 int x = 0; [L722] 0 int y = 0; [L724] 0 int z = 0; [L725] 0 _Bool z$flush_delayed; [L726] 0 int z$mem_tmp; [L727] 0 _Bool z$r_buff0_thd0; [L728] 0 _Bool z$r_buff0_thd1; [L729] 0 _Bool z$r_buff0_thd2; [L730] 0 _Bool z$r_buff0_thd3; [L731] 0 _Bool z$r_buff0_thd4; [L732] 0 _Bool z$r_buff1_thd0; [L733] 0 _Bool z$r_buff1_thd1; [L734] 0 _Bool z$r_buff1_thd2; [L735] 0 _Bool z$r_buff1_thd3; [L736] 0 _Bool z$r_buff1_thd4; [L737] 0 _Bool z$read_delayed; [L738] 0 int *z$read_delayed_var; [L739] 0 int z$w_buff0; [L740] 0 _Bool z$w_buff0_used; [L741] 0 int z$w_buff1; [L742] 0 _Bool z$w_buff1_used; [L743] 0 _Bool weak$$choice0; [L744] 0 _Bool weak$$choice2; [L844] 0 pthread_t t1429; [L845] FCALL, FORK 0 pthread_create(&t1429, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L846] 0 pthread_t t1430; [L847] FCALL, FORK 0 pthread_create(&t1430, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L848] 0 pthread_t t1431; [L849] FCALL, FORK 0 pthread_create(&t1431, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L850] 0 pthread_t t1432; [L851] FCALL, FORK 0 pthread_create(&t1432, ((void *)0), P3, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L806] 4 z$w_buff1 = z$w_buff0 [L807] 4 z$w_buff0 = 1 [L808] 4 z$w_buff1_used = z$w_buff0_used [L809] 4 z$w_buff0_used = (_Bool)1 [L18] COND FALSE 4 !(!expression) [L811] 4 z$r_buff1_thd0 = z$r_buff0_thd0 [L812] 4 z$r_buff1_thd1 = z$r_buff0_thd1 [L813] 4 z$r_buff1_thd2 = z$r_buff0_thd2 [L814] 4 z$r_buff1_thd3 = z$r_buff0_thd3 [L815] 4 z$r_buff1_thd4 = z$r_buff0_thd4 [L816] 4 z$r_buff0_thd4 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L819] 4 __unbuffered_p3_EAX = a VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L748] 1 a = 1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L751] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L763] 2 x = 2 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L766] 2 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L778] 3 y = 2 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L781] 3 weak$$choice0 = __VERIFIER_nondet_bool() [L782] 3 weak$$choice2 = __VERIFIER_nondet_bool() [L783] 3 z$flush_delayed = weak$$choice2 [L784] 3 z$mem_tmp = z [L785] EXPR 3 !z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : z$w_buff1) [L785] 3 z = !z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : z$w_buff1) [L786] EXPR 3 weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : z$w_buff0)) [L786] 3 z$w_buff0 = weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : z$w_buff0)) [L787] EXPR 3 weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff1 : z$w_buff1)) [L787] 3 z$w_buff1 = weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff1 : z$w_buff1)) [L788] EXPR 3 weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used)) [L788] 3 z$w_buff0_used = weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used)) [L789] EXPR 3 weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : (_Bool)0)) [L789] 3 z$w_buff1_used = weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : (_Bool)0)) [L790] EXPR 3 weak$$choice2 ? z$r_buff0_thd3 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$r_buff0_thd3 : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$r_buff0_thd3)) [L790] 3 z$r_buff0_thd3 = weak$$choice2 ? z$r_buff0_thd3 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$r_buff0_thd3 : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$r_buff0_thd3)) [L791] EXPR 3 weak$$choice2 ? z$r_buff1_thd3 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$r_buff1_thd3 : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : (_Bool)0)) [L791] 3 z$r_buff1_thd3 = weak$$choice2 ? z$r_buff1_thd3 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$r_buff1_thd3 : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : (_Bool)0)) [L792] 3 __unbuffered_p2_EAX = z [L793] EXPR 3 z$flush_delayed ? z$mem_tmp : z [L793] 3 z = z$flush_delayed ? z$mem_tmp : z [L794] 3 z$flush_delayed = (_Bool)0 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=255, x=2, y=2, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L799] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L801] 3 return 0; [L771] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L773] 2 return 0; [L756] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L758] 1 return 0; [L822] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd4 ? z$w_buff1 : z) [L822] 4 z = z$w_buff0_used && z$r_buff0_thd4 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd4 ? z$w_buff1 : z) [L823] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$w_buff0_used [L823] 4 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$w_buff0_used [L824] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$w_buff1_used [L824] 4 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$w_buff1_used [L825] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$r_buff0_thd4 [L825] 4 z$r_buff0_thd4 = z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$r_buff0_thd4 [L826] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$r_buff1_thd4 [L826] 4 z$r_buff1_thd4 = z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$r_buff1_thd4 [L829] 4 __unbuffered_cnt = __unbuffered_cnt + 1 [L831] 4 return 0; [L853] 0 main$tmp_guard0 = __unbuffered_cnt == 4 [L3] COND FALSE 0 !(!cond) [L857] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L857] EXPR 0 z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z [L857] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L857] 0 z = z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L858] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used [L858] 0 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used [L859] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$w_buff1_used [L859] 0 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$w_buff1_used [L860] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0 [L860] 0 z$r_buff0_thd0 = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0 [L861] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$r_buff1_thd0 [L861] 0 z$r_buff1_thd0 = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$r_buff1_thd0 [L864] 0 main$tmp_guard1 = !(x == 2 && y == 2 && __unbuffered_p2_EAX == 0 && __unbuffered_p3_EAX == 0) [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=255, x=2, y=2, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 111 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 4.9ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 7688.6ms, OverallIterations: 12, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 2062.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 4542.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 102 SDtfs, 91 SDslu, 131 SDs, 0 SdLazy, 265 SolverSat, 90 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 223.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 59 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 217.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=647occurred in iteration=8, InterpolantAutomatonStates: 71, 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: 32.7ms SsaConstructionTime, 329.8ms SatisfiabilityAnalysisTime, 487.9ms InterpolantComputationTime, 207 NumberOfCodeBlocks, 207 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 171 ConstructedInterpolants, 0 QuantifiedInterpolants, 897 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 0/0 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 proved your program to be incorrect! Received shutdown request...