/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/mix052_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-28 22:07:35,094 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-28 22:07:35,097 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-28 22:07:35,132 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-04-28 22:07:35,133 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-04-28 22:07:35,135 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-04-28 22:07:35,137 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-04-28 22:07:35,139 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-04-28 22:07:35,142 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-04-28 22:07:35,143 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-04-28 22:07:35,144 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-04-28 22:07:35,146 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-04-28 22:07:35,147 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-28 22:07:35,148 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-28 22:07:35,149 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-28 22:07:35,152 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-28 22:07:35,153 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-28 22:07:35,154 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-28 22:07:35,156 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-28 22:07:35,159 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-28 22:07:35,162 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-28 22:07:35,165 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-28 22:07:35,167 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-28 22:07:35,168 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-28 22:07:35,178 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-28 22:07:35,198 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-28 22:07:35,199 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-28 22:07:35,200 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-28 22:07:35,202 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf [2021-04-28 22:07:35,250 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-28 22:07:35,251 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-28 22:07:35,255 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-28 22:07:35,255 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-28 22:07:35,255 INFO L138 SettingsManager]: * Use SBE=true [2021-04-28 22:07:35,256 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-28 22:07:35,256 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-28 22:07:35,256 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-28 22:07:35,256 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-28 22:07:35,256 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-28 22:07:35,258 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-28 22:07:35,258 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-28 22:07:35,258 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-28 22:07:35,258 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-28 22:07:35,259 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-28 22:07:35,259 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-28 22:07:35,259 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-28 22:07:35,259 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-28 22:07:35,259 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-28 22:07:35,260 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-28 22:07:35,260 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-28 22:07:35,260 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-28 22:07:35,260 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-28 22:07:35,261 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-28 22:07:35,261 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-28 22:07:35,261 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-28 22:07:35,261 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-28 22:07:35,261 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-28 22:07:35,262 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-28 22:07:35,262 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-28 22:07:35,262 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-28 22:07:35,700 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-28 22:07:35,726 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-28 22:07:35,729 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-28 22:07:35,731 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-28 22:07:35,732 INFO L275 PluginConnector]: CDTParser initialized [2021-04-28 22:07:35,733 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix052_pso.opt.i [2021-04-28 22:07:35,827 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/02516aa55/bf8ce566cfd340c9ac20fa3e48dfb10b/FLAG2792b4e3d [2021-04-28 22:07:36,607 INFO L306 CDTParser]: Found 1 translation units. [2021-04-28 22:07:36,607 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix052_pso.opt.i [2021-04-28 22:07:36,626 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/02516aa55/bf8ce566cfd340c9ac20fa3e48dfb10b/FLAG2792b4e3d [2021-04-28 22:07:36,837 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/02516aa55/bf8ce566cfd340c9ac20fa3e48dfb10b [2021-04-28 22:07:36,840 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-28 22:07:36,884 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-28 22:07:36,886 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-28 22:07:36,886 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-28 22:07:36,890 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-28 22:07:36,891 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 10:07:36" (1/1) ... [2021-04-28 22:07:36,892 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1badd3d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:07:36, skipping insertion in model container [2021-04-28 22:07:36,892 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 10:07:36" (1/1) ... [2021-04-28 22:07:36,901 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-28 22:07:36,947 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-28 22:07:37,119 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/mix052_pso.opt.i[948,961] [2021-04-28 22:07:37,474 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 22:07:37,486 INFO L203 MainTranslator]: Completed pre-run [2021-04-28 22:07:37,504 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/mix052_pso.opt.i[948,961] [2021-04-28 22:07:37,598 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 22:07:37,735 INFO L208 MainTranslator]: Completed translation [2021-04-28 22:07:37,735 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:07:37 WrapperNode [2021-04-28 22:07:37,735 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-28 22:07:37,737 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-28 22:07:37,737 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-28 22:07:37,737 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-28 22:07:37,745 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:07:37" (1/1) ... [2021-04-28 22:07:37,765 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:07:37" (1/1) ... [2021-04-28 22:07:37,807 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-28 22:07:37,808 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-28 22:07:37,808 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-28 22:07:37,809 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-28 22:07:37,818 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:07:37" (1/1) ... [2021-04-28 22:07:37,819 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:07:37" (1/1) ... [2021-04-28 22:07:37,825 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:07:37" (1/1) ... [2021-04-28 22:07:37,825 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:07:37" (1/1) ... [2021-04-28 22:07:37,835 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:07:37" (1/1) ... [2021-04-28 22:07:37,839 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:07:37" (1/1) ... [2021-04-28 22:07:37,843 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:07:37" (1/1) ... [2021-04-28 22:07:37,849 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-28 22:07:37,851 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-28 22:07:37,851 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-28 22:07:37,851 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-28 22:07:37,852 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:07:37" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-28 22:07:37,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-28 22:07:37,975 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-04-28 22:07:37,975 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-28 22:07:37,975 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-28 22:07:37,975 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-04-28 22:07:37,975 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-04-28 22:07:37,976 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-04-28 22:07:37,976 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-04-28 22:07:37,976 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-04-28 22:07:37,976 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-04-28 22:07:37,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-28 22:07:37,976 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-04-28 22:07:37,977 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-28 22:07:37,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-28 22:07:37,979 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-04-28 22:07:39,843 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-28 22:07:39,843 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-04-28 22:07:39,846 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 10:07:39 BoogieIcfgContainer [2021-04-28 22:07:39,846 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-28 22:07:39,851 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-28 22:07:39,851 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-28 22:07:39,855 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-28 22:07:39,855 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.04 10:07:36" (1/3) ... [2021-04-28 22:07:39,856 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13f35fe9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 10:07:39, skipping insertion in model container [2021-04-28 22:07:39,857 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:07:37" (2/3) ... [2021-04-28 22:07:39,857 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13f35fe9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 10:07:39, skipping insertion in model container [2021-04-28 22:07:39,857 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 10:07:39" (3/3) ... [2021-04-28 22:07:39,860 INFO L111 eAbstractionObserver]: Analyzing ICFG mix052_pso.opt.i [2021-04-28 22:07:39,868 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-28 22:07:39,877 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-04-28 22:07:39,878 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-28 22:07:39,921 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,922 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,922 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,922 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,922 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,923 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,923 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,923 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,923 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,923 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,924 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,924 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,924 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,924 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,924 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,924 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,925 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,925 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,925 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,925 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,925 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,926 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,926 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,926 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,927 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,928 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,928 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,928 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,928 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,928 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,928 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,928 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,928 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,929 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,929 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,930 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,930 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,931 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,931 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,931 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,931 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,932 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,932 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,932 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,932 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,932 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,932 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,932 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,933 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,933 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,933 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,933 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,933 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,933 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,933 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,934 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,934 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,934 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,938 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,938 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,938 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,938 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,938 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,938 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,939 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,939 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,939 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,939 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,940 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,940 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,940 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,940 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,940 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,940 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,941 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,941 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,942 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,942 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,942 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,942 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,943 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,943 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,943 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,943 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,944 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,944 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,944 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,944 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,944 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,944 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,945 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,945 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,945 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,945 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,945 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,945 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,948 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,949 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,950 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,953 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,955 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,956 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,956 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,962 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,962 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,962 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,963 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,963 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,963 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,963 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,963 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,963 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,964 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,964 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,966 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,966 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,966 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,966 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,966 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,966 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,967 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,967 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,967 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,967 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,968 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,968 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,968 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,968 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,968 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,968 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,969 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,969 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,969 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,969 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,972 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,972 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,972 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,972 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,975 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,975 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,975 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,975 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,976 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,976 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,976 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,976 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,976 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,976 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,976 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,977 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,977 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,977 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,977 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,977 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,977 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,978 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,978 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,978 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,978 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,978 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,978 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,978 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,979 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,979 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,980 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,982 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,983 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,984 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,985 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,985 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,985 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,985 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,985 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,986 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,986 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,986 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,986 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:07:39,988 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-28 22:07:40,013 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-04-28 22:07:40,058 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-28 22:07:40,058 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-28 22:07:40,058 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-28 22:07:40,058 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-28 22:07:40,059 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-28 22:07:40,059 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-28 22:07:40,059 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-28 22:07:40,059 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-28 22:07:40,084 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 104 places, 96 transitions, 207 flow [2021-04-28 22:07:40,153 INFO L129 PetriNetUnfolder]: 2/93 cut-off events. [2021-04-28 22:07:40,153 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 22:07:40,173 INFO L84 FinitePrefix]: Finished finitePrefix Result has 103 conditions, 93 events. 2/93 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 56 event pairs, 0 based on Foata normal form. 0/89 useless extension candidates. Maximal degree in co-relation 59. Up to 2 conditions per place. [2021-04-28 22:07:40,174 INFO L82 GeneralOperation]: Start removeDead. Operand has 104 places, 96 transitions, 207 flow [2021-04-28 22:07:40,183 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 101 places, 93 transitions, 195 flow [2021-04-28 22:07:40,185 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:07:40,202 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 101 places, 93 transitions, 195 flow [2021-04-28 22:07:40,206 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 101 places, 93 transitions, 195 flow [2021-04-28 22:07:40,212 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 101 places, 93 transitions, 195 flow [2021-04-28 22:07:40,256 INFO L129 PetriNetUnfolder]: 2/93 cut-off events. [2021-04-28 22:07:40,256 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 22:07:40,257 INFO L84 FinitePrefix]: Finished finitePrefix Result has 103 conditions, 93 events. 2/93 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 66 event pairs, 0 based on Foata normal form. 0/89 useless extension candidates. Maximal degree in co-relation 59. Up to 2 conditions per place. [2021-04-28 22:07:40,263 INFO L146 LiptonReduction]: Number of co-enabled transitions 1488 [2021-04-28 22:07:43,614 WARN L205 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 60 [2021-04-28 22:07:43,735 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-04-28 22:07:44,358 WARN L205 SmtUtils]: Spent 620.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 90 [2021-04-28 22:07:44,620 WARN L205 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2021-04-28 22:07:45,452 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 45 [2021-04-28 22:07:45,606 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 45 [2021-04-28 22:08:00,898 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 22:08:01,108 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 22:08:01,211 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 22:08:01,329 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 22:08:01,443 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 22:08:01,562 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 22:08:01,674 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 22:08:01,875 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 22:08:02,168 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 22:08:02,274 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 22:08:02,388 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 22:08:02,501 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 22:08:04,348 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 22:08:04,495 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 22:08:04,683 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 22:08:04,851 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 22:08:05,033 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 22:08:05,210 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 22:08:05,395 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 22:08:05,574 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 22:08:06,025 WARN L205 SmtUtils]: Spent 449.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 109 [2021-04-28 22:08:06,244 WARN L205 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2021-04-28 22:08:06,700 WARN L205 SmtUtils]: Spent 454.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 109 [2021-04-28 22:08:06,918 WARN L205 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2021-04-28 22:08:07,098 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 22:08:07,281 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 22:08:07,459 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 22:08:07,638 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 22:08:07,846 WARN L205 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 22:08:08,033 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 22:08:08,203 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 22:08:08,379 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 22:08:08,541 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 22:08:08,702 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 22:08:08,859 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 22:08:09,011 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 22:08:09,126 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 22:08:09,240 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 22:08:09,355 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 22:08:09,472 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 22:08:09,648 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 22:08:09,822 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 22:08:09,999 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 22:08:10,173 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 22:08:10,310 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 22:08:10,446 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 22:08:10,592 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 22:08:10,738 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 22:08:10,931 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 22:08:11,106 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 22:08:11,288 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 22:08:11,472 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 22:08:11,651 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 22:08:11,825 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 22:08:11,998 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 22:08:12,178 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 22:08:12,284 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 22:08:12,744 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 22:08:12,913 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 22:08:13,078 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 22:08:13,237 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 22:08:13,361 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 22:08:13,479 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 22:08:13,608 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 22:08:13,733 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 22:08:14,214 WARN L205 SmtUtils]: Spent 479.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 114 [2021-04-28 22:08:14,434 WARN L205 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2021-04-28 22:08:14,893 WARN L205 SmtUtils]: Spent 457.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 114 [2021-04-28 22:08:15,108 WARN L205 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2021-04-28 22:08:15,626 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 22:08:15,753 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 22:08:15,885 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 22:08:16,019 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 22:08:16,137 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 22:08:16,248 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 22:08:16,362 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 22:08:16,476 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 22:08:16,680 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 22:08:17,025 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 22:08:17,146 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 22:08:17,269 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 22:08:17,389 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 22:08:17,555 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 22:08:17,727 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 22:08:17,887 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 22:08:18,050 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 22:08:18,098 INFO L158 LiptonReduction]: Checked pairs total: 12962 [2021-04-28 22:08:18,098 INFO L160 LiptonReduction]: Total number of compositions: 245 [2021-04-28 22:08:18,104 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 37921 [2021-04-28 22:08:18,129 INFO L129 PetriNetUnfolder]: 0/80 cut-off events. [2021-04-28 22:08:18,130 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 22:08:18,130 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:08:18,131 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:08:18,131 INFO L428 AbstractCegarLoop]: === Iteration 1 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:08:18,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:08:18,137 INFO L82 PathProgramCache]: Analyzing trace with hash -74843272, now seen corresponding path program 1 times [2021-04-28 22:08:18,147 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:08:18,148 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548949119] [2021-04-28 22:08:18,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:08:18,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:08:18,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:08:18,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:08:18,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 22:08:18,415 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548949119] [2021-04-28 22:08:18,416 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:08:18,416 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 22:08:18,417 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277977064] [2021-04-28 22:08:18,428 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 22:08:18,428 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:08:18,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 22:08:18,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 22:08:18,456 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 273 out of 341 [2021-04-28 22:08:18,464 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 118 transitions, 245 flow. Second operand has 3 states, 3 states have (on average 273.6666666666667) internal successors, (821), 3 states have internal predecessors, (821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:08:18,465 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:08:18,465 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 273 of 341 [2021-04-28 22:08:18,466 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:08:18,587 INFO L129 PetriNetUnfolder]: 9/145 cut-off events. [2021-04-28 22:08:18,587 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 22:08:18,589 INFO L84 FinitePrefix]: Finished finitePrefix Result has 188 conditions, 145 events. 9/145 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 838 event pairs, 1 based on Foata normal form. 11/53 useless extension candidates. Maximal degree in co-relation 118. Up to 17 conditions per place. [2021-04-28 22:08:18,591 INFO L132 encePairwiseOnDemand]: 324/341 looper letters, 5 selfloop transitions, 2 changer transitions 53/116 dead transitions. [2021-04-28 22:08:18,591 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 116 transitions, 277 flow [2021-04-28 22:08:18,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 22:08:18,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 22:08:18,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 844 transitions. [2021-04-28 22:08:18,613 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8250244379276638 [2021-04-28 22:08:18,614 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 844 transitions. [2021-04-28 22:08:18,614 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 844 transitions. [2021-04-28 22:08:18,619 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:08:18,622 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 844 transitions. [2021-04-28 22:08:18,633 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 281.3333333333333) internal successors, (844), 3 states have internal predecessors, (844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:08:18,651 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 341.0) internal successors, (1364), 4 states have internal predecessors, (1364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:08:18,652 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 341.0) internal successors, (1364), 4 states have internal predecessors, (1364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:08:18,654 INFO L185 Difference]: Start difference. First operand has 127 places, 118 transitions, 245 flow. Second operand 3 states and 844 transitions. [2021-04-28 22:08:18,655 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 116 transitions, 277 flow [2021-04-28 22:08:18,659 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 116 transitions, 274 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-04-28 22:08:18,663 INFO L241 Difference]: Finished difference. Result has 123 places, 61 transitions, 132 flow [2021-04-28 22:08:18,665 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=341, PETRI_DIFFERENCE_MINUEND_FLOW=234, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=132, PETRI_PLACES=123, PETRI_TRANSITIONS=61} [2021-04-28 22:08:18,666 INFO L343 CegarLoopForPetriNet]: 127 programPoint places, -4 predicate places. [2021-04-28 22:08:18,666 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:08:18,667 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 123 places, 61 transitions, 132 flow [2021-04-28 22:08:18,668 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 123 places, 61 transitions, 132 flow [2021-04-28 22:08:18,668 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 70 places, 61 transitions, 132 flow [2021-04-28 22:08:18,678 INFO L129 PetriNetUnfolder]: 0/61 cut-off events. [2021-04-28 22:08:18,678 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 22:08:18,679 INFO L84 FinitePrefix]: Finished finitePrefix Result has 71 conditions, 61 events. 0/61 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 296 event pairs, 0 based on Foata normal form. 0/20 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-04-28 22:08:18,681 INFO L146 LiptonReduction]: Number of co-enabled transitions 1680 [2021-04-28 22:08:19,523 INFO L158 LiptonReduction]: Checked pairs total: 2204 [2021-04-28 22:08:19,524 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:08:19,524 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 858 [2021-04-28 22:08:19,526 INFO L480 AbstractCegarLoop]: Abstraction has has 70 places, 61 transitions, 132 flow [2021-04-28 22:08:19,527 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 273.6666666666667) internal successors, (821), 3 states have internal predecessors, (821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:08:19,527 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:08:19,527 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:08:19,527 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-28 22:08:19,528 INFO L428 AbstractCegarLoop]: === Iteration 2 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:08:19,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:08:19,528 INFO L82 PathProgramCache]: Analyzing trace with hash 1090138728, now seen corresponding path program 1 times [2021-04-28 22:08:19,528 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:08:19,529 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172634850] [2021-04-28 22:08:19,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:08:19,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:08:19,727 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-04-28 22:08:19,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 22:08:19,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 22:08:19,737 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172634850] [2021-04-28 22:08:19,737 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:08:19,738 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 22:08:19,738 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290405777] [2021-04-28 22:08:19,739 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 22:08:19,739 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:08:19,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 22:08:19,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 22:08:19,742 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 222 out of 341 [2021-04-28 22:08:19,744 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 61 transitions, 132 flow. Second operand has 3 states, 3 states have (on average 222.66666666666666) internal successors, (668), 3 states have internal predecessors, (668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:08:19,744 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:08:19,744 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 222 of 341 [2021-04-28 22:08:19,744 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:08:20,245 INFO L129 PetriNetUnfolder]: 659/2296 cut-off events. [2021-04-28 22:08:20,245 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 22:08:20,255 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3457 conditions, 2296 events. 659/2296 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 469. Compared 26198 event pairs, 213 based on Foata normal form. 0/1223 useless extension candidates. Maximal degree in co-relation 3448. Up to 678 conditions per place. [2021-04-28 22:08:20,259 INFO L132 encePairwiseOnDemand]: 322/341 looper letters, 5 selfloop transitions, 5 changer transitions 46/87 dead transitions. [2021-04-28 22:08:20,260 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 87 transitions, 296 flow [2021-04-28 22:08:20,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 22:08:20,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 22:08:20,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 719 transitions. [2021-04-28 22:08:20,264 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7028347996089932 [2021-04-28 22:08:20,265 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 719 transitions. [2021-04-28 22:08:20,265 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 719 transitions. [2021-04-28 22:08:20,265 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:08:20,266 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 719 transitions. [2021-04-28 22:08:20,268 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 239.66666666666666) internal successors, (719), 3 states have internal predecessors, (719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:08:20,272 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 341.0) internal successors, (1364), 4 states have internal predecessors, (1364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:08:20,273 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 341.0) internal successors, (1364), 4 states have internal predecessors, (1364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:08:20,273 INFO L185 Difference]: Start difference. First operand has 70 places, 61 transitions, 132 flow. Second operand 3 states and 719 transitions. [2021-04-28 22:08:20,274 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 87 transitions, 296 flow [2021-04-28 22:08:20,276 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 87 transitions, 292 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-28 22:08:20,278 INFO L241 Difference]: Finished difference. Result has 72 places, 41 transitions, 118 flow [2021-04-28 22:08:20,278 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=341, PETRI_DIFFERENCE_MINUEND_FLOW=128, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=118, PETRI_PLACES=72, PETRI_TRANSITIONS=41} [2021-04-28 22:08:20,279 INFO L343 CegarLoopForPetriNet]: 127 programPoint places, -55 predicate places. [2021-04-28 22:08:20,279 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:08:20,279 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 72 places, 41 transitions, 118 flow [2021-04-28 22:08:20,280 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 72 places, 41 transitions, 118 flow [2021-04-28 22:08:20,280 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 48 places, 41 transitions, 118 flow [2021-04-28 22:08:20,305 INFO L129 PetriNetUnfolder]: 24/158 cut-off events. [2021-04-28 22:08:20,305 INFO L130 PetriNetUnfolder]: For 13/16 co-relation queries the response was YES. [2021-04-28 22:08:20,306 INFO L84 FinitePrefix]: Finished finitePrefix Result has 248 conditions, 158 events. 24/158 cut-off events. For 13/16 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 937 event pairs, 10 based on Foata normal form. 0/89 useless extension candidates. Maximal degree in co-relation 239. Up to 45 conditions per place. [2021-04-28 22:08:20,311 INFO L146 LiptonReduction]: Number of co-enabled transitions 904 [2021-04-28 22:08:20,448 INFO L158 LiptonReduction]: Checked pairs total: 339 [2021-04-28 22:08:20,448 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:08:20,449 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 170 [2021-04-28 22:08:20,451 INFO L480 AbstractCegarLoop]: Abstraction has has 48 places, 41 transitions, 118 flow [2021-04-28 22:08:20,452 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 222.66666666666666) internal successors, (668), 3 states have internal predecessors, (668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:08:20,452 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:08:20,453 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:08:20,453 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-28 22:08:20,453 INFO L428 AbstractCegarLoop]: === Iteration 3 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:08:20,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:08:20,456 INFO L82 PathProgramCache]: Analyzing trace with hash -1013564524, now seen corresponding path program 1 times [2021-04-28 22:08:20,456 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:08:20,458 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74181934] [2021-04-28 22:08:20,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:08:20,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:08:20,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:08:20,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:08:20,589 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-28 22:08:20,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 22:08:20,598 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:08:20,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 22:08:20,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 22:08:20,599 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74181934] [2021-04-28 22:08:20,600 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:08:20,600 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 22:08:20,600 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779066082] [2021-04-28 22:08:20,600 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 22:08:20,600 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:08:20,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 22:08:20,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-28 22:08:20,603 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 240 out of 341 [2021-04-28 22:08:20,605 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 41 transitions, 118 flow. Second operand has 4 states, 4 states have (on average 240.75) internal successors, (963), 4 states have internal predecessors, (963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:08:20,605 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:08:20,605 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 240 of 341 [2021-04-28 22:08:20,605 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:08:21,539 INFO L129 PetriNetUnfolder]: 5364/8947 cut-off events. [2021-04-28 22:08:21,539 INFO L130 PetriNetUnfolder]: For 23/26 co-relation queries the response was YES. [2021-04-28 22:08:21,572 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17923 conditions, 8947 events. 5364/8947 cut-off events. For 23/26 co-relation queries the response was YES. Maximal size of possible extension queue 1686. Compared 75974 event pairs, 2204 based on Foata normal form. 196/2708 useless extension candidates. Maximal degree in co-relation 17912. Up to 5719 conditions per place. [2021-04-28 22:08:21,604 INFO L132 encePairwiseOnDemand]: 324/341 looper letters, 28 selfloop transitions, 27 changer transitions 0/76 dead transitions. [2021-04-28 22:08:21,604 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 76 transitions, 298 flow [2021-04-28 22:08:21,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 22:08:21,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 22:08:21,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1254 transitions. [2021-04-28 22:08:21,609 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7354838709677419 [2021-04-28 22:08:21,609 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1254 transitions. [2021-04-28 22:08:21,609 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1254 transitions. [2021-04-28 22:08:21,610 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:08:21,610 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1254 transitions. [2021-04-28 22:08:21,614 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 250.8) internal successors, (1254), 5 states have internal predecessors, (1254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:08:21,618 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 341.0) internal successors, (2046), 6 states have internal predecessors, (2046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:08:21,620 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 341.0) internal successors, (2046), 6 states have internal predecessors, (2046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:08:21,620 INFO L185 Difference]: Start difference. First operand has 48 places, 41 transitions, 118 flow. Second operand 5 states and 1254 transitions. [2021-04-28 22:08:21,620 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 76 transitions, 298 flow [2021-04-28 22:08:21,623 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 76 transitions, 288 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-28 22:08:21,625 INFO L241 Difference]: Finished difference. Result has 53 places, 66 transitions, 309 flow [2021-04-28 22:08:21,626 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=341, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=309, PETRI_PLACES=53, PETRI_TRANSITIONS=66} [2021-04-28 22:08:21,626 INFO L343 CegarLoopForPetriNet]: 127 programPoint places, -74 predicate places. [2021-04-28 22:08:21,626 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:08:21,626 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 53 places, 66 transitions, 309 flow [2021-04-28 22:08:21,627 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 53 places, 66 transitions, 309 flow [2021-04-28 22:08:21,627 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 53 places, 66 transitions, 309 flow [2021-04-28 22:08:22,355 INFO L129 PetriNetUnfolder]: 4500/7636 cut-off events. [2021-04-28 22:08:22,355 INFO L130 PetriNetUnfolder]: For 1448/3559 co-relation queries the response was YES. [2021-04-28 22:08:22,387 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21362 conditions, 7636 events. 4500/7636 cut-off events. For 1448/3559 co-relation queries the response was YES. Maximal size of possible extension queue 1514. Compared 67521 event pairs, 2092 based on Foata normal form. 4/2335 useless extension candidates. Maximal degree in co-relation 21350. Up to 6920 conditions per place. [2021-04-28 22:08:22,469 INFO L146 LiptonReduction]: Number of co-enabled transitions 1256 [2021-04-28 22:08:22,997 INFO L158 LiptonReduction]: Checked pairs total: 595 [2021-04-28 22:08:22,997 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:08:22,997 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1371 [2021-04-28 22:08:22,999 INFO L480 AbstractCegarLoop]: Abstraction has has 53 places, 66 transitions, 309 flow [2021-04-28 22:08:23,000 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 240.75) internal successors, (963), 4 states have internal predecessors, (963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:08:23,000 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:08:23,000 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:08:23,000 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-28 22:08:23,001 INFO L428 AbstractCegarLoop]: === Iteration 4 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:08:23,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:08:23,001 INFO L82 PathProgramCache]: Analyzing trace with hash 782904740, now seen corresponding path program 1 times [2021-04-28 22:08:23,001 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:08:23,002 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333058061] [2021-04-28 22:08:23,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:08:23,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:08:23,175 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:08:23,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:08:23,184 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:08:23,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:08:23,190 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-28 22:08:23,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 22:08:23,200 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:08:23,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 22:08:23,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 22:08:23,201 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333058061] [2021-04-28 22:08:23,201 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:08:23,201 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-28 22:08:23,201 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950912144] [2021-04-28 22:08:23,202 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 22:08:23,202 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:08:23,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 22:08:23,203 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-28 22:08:23,205 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 240 out of 341 [2021-04-28 22:08:23,207 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 66 transitions, 309 flow. Second operand has 5 states, 5 states have (on average 240.8) internal successors, (1204), 5 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:08:23,208 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:08:23,208 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 240 of 341 [2021-04-28 22:08:23,208 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:08:24,554 INFO L129 PetriNetUnfolder]: 4827/9142 cut-off events. [2021-04-28 22:08:24,554 INFO L130 PetriNetUnfolder]: For 3156/12159 co-relation queries the response was YES. [2021-04-28 22:08:24,597 INFO L84 FinitePrefix]: Finished finitePrefix Result has 34378 conditions, 9142 events. 4827/9142 cut-off events. For 3156/12159 co-relation queries the response was YES. Maximal size of possible extension queue 1998. Compared 90068 event pairs, 452 based on Foata normal form. 260/3230 useless extension candidates. Maximal degree in co-relation 34364. Up to 8165 conditions per place. [2021-04-28 22:08:24,634 INFO L132 encePairwiseOnDemand]: 324/341 looper letters, 20 selfloop transitions, 52 changer transitions 9/102 dead transitions. [2021-04-28 22:08:24,635 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 102 transitions, 666 flow [2021-04-28 22:08:24,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-28 22:08:24,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-04-28 22:08:24,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1758 transitions. [2021-04-28 22:08:24,642 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7364893171344784 [2021-04-28 22:08:24,642 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1758 transitions. [2021-04-28 22:08:24,642 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1758 transitions. [2021-04-28 22:08:24,644 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:08:24,644 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1758 transitions. [2021-04-28 22:08:24,649 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 251.14285714285714) internal successors, (1758), 7 states have internal predecessors, (1758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:08:24,656 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 341.0) internal successors, (2728), 8 states have internal predecessors, (2728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:08:24,659 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 341.0) internal successors, (2728), 8 states have internal predecessors, (2728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:08:24,659 INFO L185 Difference]: Start difference. First operand has 53 places, 66 transitions, 309 flow. Second operand 7 states and 1758 transitions. [2021-04-28 22:08:24,660 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 102 transitions, 666 flow [2021-04-28 22:08:24,727 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 102 transitions, 666 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-04-28 22:08:24,730 INFO L241 Difference]: Finished difference. Result has 62 places, 91 transitions, 646 flow [2021-04-28 22:08:24,730 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=341, PETRI_DIFFERENCE_MINUEND_FLOW=309, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=646, PETRI_PLACES=62, PETRI_TRANSITIONS=91} [2021-04-28 22:08:24,731 INFO L343 CegarLoopForPetriNet]: 127 programPoint places, -65 predicate places. [2021-04-28 22:08:24,731 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:08:24,731 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 91 transitions, 646 flow [2021-04-28 22:08:24,731 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 62 places, 91 transitions, 646 flow [2021-04-28 22:08:24,732 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 62 places, 91 transitions, 646 flow [2021-04-28 22:08:25,467 INFO L129 PetriNetUnfolder]: 2826/6014 cut-off events. [2021-04-28 22:08:25,467 INFO L130 PetriNetUnfolder]: For 7319/13902 co-relation queries the response was YES. [2021-04-28 22:08:25,495 INFO L84 FinitePrefix]: Finished finitePrefix Result has 25240 conditions, 6014 events. 2826/6014 cut-off events. For 7319/13902 co-relation queries the response was YES. Maximal size of possible extension queue 1635. Compared 63702 event pairs, 434 based on Foata normal form. 1/1864 useless extension candidates. Maximal degree in co-relation 25223. Up to 5273 conditions per place. [2021-04-28 22:08:25,574 INFO L146 LiptonReduction]: Number of co-enabled transitions 1612 [2021-04-28 22:08:25,838 INFO L158 LiptonReduction]: Checked pairs total: 1112 [2021-04-28 22:08:25,838 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:08:25,839 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1108 [2021-04-28 22:08:25,845 INFO L480 AbstractCegarLoop]: Abstraction has has 62 places, 91 transitions, 646 flow [2021-04-28 22:08:25,846 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 240.8) internal successors, (1204), 5 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:08:25,846 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:08:25,846 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:08:25,847 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-28 22:08:25,847 INFO L428 AbstractCegarLoop]: === Iteration 5 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:08:25,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:08:25,847 INFO L82 PathProgramCache]: Analyzing trace with hash -518344588, now seen corresponding path program 1 times [2021-04-28 22:08:25,851 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:08:25,851 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327399537] [2021-04-28 22:08:25,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:08:25,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:08:26,004 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:08:26,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:08:26,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:08:26,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:08:26,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:08:26,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:08:26,021 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-28 22:08:26,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 22:08:26,029 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:08:26,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 22:08:26,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 22:08:26,031 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327399537] [2021-04-28 22:08:26,031 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:08:26,031 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-04-28 22:08:26,031 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991472950] [2021-04-28 22:08:26,031 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-28 22:08:26,032 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:08:26,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-28 22:08:26,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-04-28 22:08:26,034 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 240 out of 341 [2021-04-28 22:08:26,037 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 91 transitions, 646 flow. Second operand has 6 states, 6 states have (on average 240.83333333333334) internal successors, (1445), 6 states have internal predecessors, (1445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:08:26,037 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:08:26,037 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 240 of 341 [2021-04-28 22:08:26,037 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:08:27,230 INFO L129 PetriNetUnfolder]: 2694/6388 cut-off events. [2021-04-28 22:08:27,230 INFO L130 PetriNetUnfolder]: For 8393/24104 co-relation queries the response was YES. [2021-04-28 22:08:27,267 INFO L84 FinitePrefix]: Finished finitePrefix Result has 33052 conditions, 6388 events. 2694/6388 cut-off events. For 8393/24104 co-relation queries the response was YES. Maximal size of possible extension queue 1605. Compared 72624 event pairs, 2 based on Foata normal form. 222/2202 useless extension candidates. Maximal degree in co-relation 33033. Up to 5582 conditions per place. [2021-04-28 22:08:27,301 INFO L132 encePairwiseOnDemand]: 324/341 looper letters, 5 selfloop transitions, 67 changer transitions 17/110 dead transitions. [2021-04-28 22:08:27,301 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 110 transitions, 946 flow [2021-04-28 22:08:27,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-04-28 22:08:27,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-04-28 22:08:27,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2244 transitions. [2021-04-28 22:08:27,310 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7311827956989247 [2021-04-28 22:08:27,310 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2244 transitions. [2021-04-28 22:08:27,310 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2244 transitions. [2021-04-28 22:08:27,312 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:08:27,312 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2244 transitions. [2021-04-28 22:08:27,320 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 249.33333333333334) internal successors, (2244), 9 states have internal predecessors, (2244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:08:27,329 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 341.0) internal successors, (3410), 10 states have internal predecessors, (3410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:08:27,331 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 341.0) internal successors, (3410), 10 states have internal predecessors, (3410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:08:27,332 INFO L185 Difference]: Start difference. First operand has 62 places, 91 transitions, 646 flow. Second operand 9 states and 2244 transitions. [2021-04-28 22:08:27,332 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 110 transitions, 946 flow [2021-04-28 22:08:27,933 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 110 transitions, 816 flow, removed 42 selfloop flow, removed 3 redundant places. [2021-04-28 22:08:27,936 INFO L241 Difference]: Finished difference. Result has 70 places, 91 transitions, 698 flow [2021-04-28 22:08:27,937 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=341, PETRI_DIFFERENCE_MINUEND_FLOW=517, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=66, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=698, PETRI_PLACES=70, PETRI_TRANSITIONS=91} [2021-04-28 22:08:27,937 INFO L343 CegarLoopForPetriNet]: 127 programPoint places, -57 predicate places. [2021-04-28 22:08:27,937 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:08:27,937 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 70 places, 91 transitions, 698 flow [2021-04-28 22:08:27,938 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 70 places, 91 transitions, 698 flow [2021-04-28 22:08:27,939 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 68 places, 91 transitions, 698 flow [2021-04-28 22:08:28,368 INFO L129 PetriNetUnfolder]: 1503/4034 cut-off events. [2021-04-28 22:08:28,368 INFO L130 PetriNetUnfolder]: For 5364/10855 co-relation queries the response was YES. [2021-04-28 22:08:28,392 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17413 conditions, 4034 events. 1503/4034 cut-off events. For 5364/10855 co-relation queries the response was YES. Maximal size of possible extension queue 1488. Compared 47866 event pairs, 2 based on Foata normal form. 1/1174 useless extension candidates. Maximal degree in co-relation 17393. Up to 2970 conditions per place. [2021-04-28 22:08:28,440 INFO L146 LiptonReduction]: Number of co-enabled transitions 1530 [2021-04-28 22:08:29,206 INFO L158 LiptonReduction]: Checked pairs total: 1055 [2021-04-28 22:08:29,206 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:08:29,207 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1270 [2021-04-28 22:08:29,208 INFO L480 AbstractCegarLoop]: Abstraction has has 68 places, 91 transitions, 698 flow [2021-04-28 22:08:29,215 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 240.83333333333334) internal successors, (1445), 6 states have internal predecessors, (1445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:08:29,215 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:08:29,215 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:08:29,215 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-04-28 22:08:29,216 INFO L428 AbstractCegarLoop]: === Iteration 6 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:08:29,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:08:29,216 INFO L82 PathProgramCache]: Analyzing trace with hash 1410845110, now seen corresponding path program 1 times [2021-04-28 22:08:29,216 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:08:29,216 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064843786] [2021-04-28 22:08:29,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:08:29,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:08:29,307 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:08:29,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 22:08:29,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:08:29,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:08:29,311 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:08:29,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:08:29,317 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-04-28 22:08:29,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 22:08:29,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 22:08:29,327 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064843786] [2021-04-28 22:08:29,327 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:08:29,328 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-28 22:08:29,328 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275048731] [2021-04-28 22:08:29,328 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 22:08:29,328 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:08:29,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 22:08:29,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-28 22:08:29,331 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 194 out of 341 [2021-04-28 22:08:29,332 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 91 transitions, 698 flow. Second operand has 5 states, 5 states have (on average 195.4) internal successors, (977), 5 states have internal predecessors, (977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:08:29,332 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:08:29,332 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 194 of 341 [2021-04-28 22:08:29,333 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:08:30,156 INFO L129 PetriNetUnfolder]: 2728/7300 cut-off events. [2021-04-28 22:08:30,156 INFO L130 PetriNetUnfolder]: For 10222/25486 co-relation queries the response was YES. [2021-04-28 22:08:30,201 INFO L84 FinitePrefix]: Finished finitePrefix Result has 31719 conditions, 7300 events. 2728/7300 cut-off events. For 10222/25486 co-relation queries the response was YES. Maximal size of possible extension queue 2412. Compared 92870 event pairs, 1 based on Foata normal form. 32/2121 useless extension candidates. Maximal degree in co-relation 31697. Up to 5346 conditions per place. [2021-04-28 22:08:30,219 INFO L132 encePairwiseOnDemand]: 334/341 looper letters, 5 selfloop transitions, 7 changer transitions 17/102 dead transitions. [2021-04-28 22:08:30,219 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 102 transitions, 784 flow [2021-04-28 22:08:30,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-04-28 22:08:30,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-04-28 22:08:30,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1185 transitions. [2021-04-28 22:08:30,224 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5791788856304986 [2021-04-28 22:08:30,225 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1185 transitions. [2021-04-28 22:08:30,225 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1185 transitions. [2021-04-28 22:08:30,226 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:08:30,226 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1185 transitions. [2021-04-28 22:08:30,229 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 197.5) internal successors, (1185), 6 states have internal predecessors, (1185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:08:30,233 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 341.0) internal successors, (2387), 7 states have internal predecessors, (2387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:08:30,234 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 341.0) internal successors, (2387), 7 states have internal predecessors, (2387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:08:30,234 INFO L185 Difference]: Start difference. First operand has 68 places, 91 transitions, 698 flow. Second operand 6 states and 1185 transitions. [2021-04-28 22:08:30,234 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 102 transitions, 784 flow [2021-04-28 22:08:33,589 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 102 transitions, 588 flow, removed 41 selfloop flow, removed 8 redundant places. [2021-04-28 22:08:33,591 INFO L241 Difference]: Finished difference. Result has 67 places, 84 transitions, 477 flow [2021-04-28 22:08:33,591 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=341, PETRI_DIFFERENCE_MINUEND_FLOW=502, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=477, PETRI_PLACES=67, PETRI_TRANSITIONS=84} [2021-04-28 22:08:33,592 INFO L343 CegarLoopForPetriNet]: 127 programPoint places, -60 predicate places. [2021-04-28 22:08:33,592 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:08:33,592 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 67 places, 84 transitions, 477 flow [2021-04-28 22:08:33,592 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 67 places, 84 transitions, 477 flow [2021-04-28 22:08:33,593 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 65 places, 84 transitions, 477 flow [2021-04-28 22:08:33,768 INFO L129 PetriNetUnfolder]: 645/2556 cut-off events. [2021-04-28 22:08:33,768 INFO L130 PetriNetUnfolder]: For 1549/1552 co-relation queries the response was YES. [2021-04-28 22:08:33,780 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9083 conditions, 2556 events. 645/2556 cut-off events. For 1549/1552 co-relation queries the response was YES. Maximal size of possible extension queue 885. Compared 33316 event pairs, 1 based on Foata normal form. 0/837 useless extension candidates. Maximal degree in co-relation 9064. Up to 1647 conditions per place. [2021-04-28 22:08:33,806 INFO L146 LiptonReduction]: Number of co-enabled transitions 1144 [2021-04-28 22:08:34,550 INFO L158 LiptonReduction]: Checked pairs total: 1710 [2021-04-28 22:08:34,550 INFO L160 LiptonReduction]: Total number of compositions: 1 [2021-04-28 22:08:34,551 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 959 [2021-04-28 22:08:34,552 INFO L480 AbstractCegarLoop]: Abstraction has has 65 places, 84 transitions, 478 flow [2021-04-28 22:08:34,553 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 195.4) internal successors, (977), 5 states have internal predecessors, (977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:08:34,553 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:08:34,553 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:08:34,553 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-04-28 22:08:34,553 INFO L428 AbstractCegarLoop]: === Iteration 7 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:08:34,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:08:34,554 INFO L82 PathProgramCache]: Analyzing trace with hash -1315788916, now seen corresponding path program 1 times [2021-04-28 22:08:34,554 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:08:34,554 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897892498] [2021-04-28 22:08:34,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:08:34,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:08:34,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:08:34,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 22:08:34,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:08:34,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:08:34,642 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-04-28 22:08:34,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 22:08:34,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 22:08:34,650 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897892498] [2021-04-28 22:08:34,650 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:08:34,650 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 22:08:34,650 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750296005] [2021-04-28 22:08:34,651 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 22:08:34,651 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:08:34,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 22:08:34,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-04-28 22:08:34,653 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 222 out of 342 [2021-04-28 22:08:34,655 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 84 transitions, 478 flow. Second operand has 4 states, 4 states have (on average 223.5) internal successors, (894), 4 states have internal predecessors, (894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:08:34,655 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:08:34,655 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 222 of 342 [2021-04-28 22:08:34,655 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:08:35,010 INFO L129 PetriNetUnfolder]: 734/3003 cut-off events. [2021-04-28 22:08:35,010 INFO L130 PetriNetUnfolder]: For 2086/2125 co-relation queries the response was YES. [2021-04-28 22:08:35,019 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10634 conditions, 3003 events. 734/3003 cut-off events. For 2086/2125 co-relation queries the response was YES. Maximal size of possible extension queue 1161. Compared 38437 event pairs, 1 based on Foata normal form. 31/1040 useless extension candidates. Maximal degree in co-relation 10613. Up to 1899 conditions per place. [2021-04-28 22:08:35,023 INFO L132 encePairwiseOnDemand]: 337/342 looper letters, 2 selfloop transitions, 4 changer transitions 39/84 dead transitions. [2021-04-28 22:08:35,024 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 84 transitions, 498 flow [2021-04-28 22:08:35,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 22:08:35,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 22:08:35,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 899 transitions. [2021-04-28 22:08:35,028 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6571637426900585 [2021-04-28 22:08:35,028 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 899 transitions. [2021-04-28 22:08:35,028 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 899 transitions. [2021-04-28 22:08:35,029 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:08:35,029 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 899 transitions. [2021-04-28 22:08:35,031 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 224.75) internal successors, (899), 4 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:08:35,034 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 342.0) internal successors, (1710), 5 states have internal predecessors, (1710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:08:35,035 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 342.0) internal successors, (1710), 5 states have internal predecessors, (1710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:08:35,035 INFO L185 Difference]: Start difference. First operand has 65 places, 84 transitions, 478 flow. Second operand 4 states and 899 transitions. [2021-04-28 22:08:35,036 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 84 transitions, 498 flow [2021-04-28 22:08:35,333 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 84 transitions, 490 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-04-28 22:08:35,334 INFO L241 Difference]: Finished difference. Result has 67 places, 45 transitions, 233 flow [2021-04-28 22:08:35,335 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=342, PETRI_DIFFERENCE_MINUEND_FLOW=470, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=233, PETRI_PLACES=67, PETRI_TRANSITIONS=45} [2021-04-28 22:08:35,335 INFO L343 CegarLoopForPetriNet]: 127 programPoint places, -60 predicate places. [2021-04-28 22:08:35,335 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:08:35,335 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 67 places, 45 transitions, 233 flow [2021-04-28 22:08:35,336 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 67 places, 45 transitions, 233 flow [2021-04-28 22:08:35,336 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 54 places, 45 transitions, 233 flow [2021-04-28 22:08:35,360 INFO L129 PetriNetUnfolder]: 81/240 cut-off events. [2021-04-28 22:08:35,360 INFO L130 PetriNetUnfolder]: For 295/295 co-relation queries the response was YES. [2021-04-28 22:08:35,361 INFO L84 FinitePrefix]: Finished finitePrefix Result has 723 conditions, 240 events. 81/240 cut-off events. For 295/295 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 1414 event pairs, 0 based on Foata normal form. 0/138 useless extension candidates. Maximal degree in co-relation 703. Up to 109 conditions per place. [2021-04-28 22:08:35,363 INFO L146 LiptonReduction]: Number of co-enabled transitions 256 [2021-04-28 22:08:35,547 INFO L158 LiptonReduction]: Checked pairs total: 327 [2021-04-28 22:08:35,547 INFO L160 LiptonReduction]: Total number of compositions: 1 [2021-04-28 22:08:35,548 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 213 [2021-04-28 22:08:35,549 INFO L480 AbstractCegarLoop]: Abstraction has has 54 places, 45 transitions, 233 flow [2021-04-28 22:08:35,549 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 223.5) internal successors, (894), 4 states have internal predecessors, (894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:08:35,550 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:08:35,550 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:08:35,550 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-04-28 22:08:35,550 INFO L428 AbstractCegarLoop]: === Iteration 8 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:08:35,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:08:35,550 INFO L82 PathProgramCache]: Analyzing trace with hash -870030996, now seen corresponding path program 1 times [2021-04-28 22:08:35,551 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:08:35,551 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552914648] [2021-04-28 22:08:35,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:08:35,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-28 22:08:35,598 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-28 22:08:35,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-28 22:08:35,643 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-28 22:08:35,689 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-04-28 22:08:35,689 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-04-28 22:08:35,690 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-04-28 22:08:35,812 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.04 10:08:35 BasicIcfg [2021-04-28 22:08:35,813 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-28 22:08:35,814 INFO L168 Benchmark]: Toolchain (without parser) took 58971.76 ms. Allocated memory was 302.0 MB in the beginning and 868.2 MB in the end (delta: 566.2 MB). Free memory was 275.9 MB in the beginning and 600.9 MB in the end (delta: -325.0 MB). Peak memory consumption was 243.6 MB. Max. memory is 16.0 GB. [2021-04-28 22:08:35,814 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 302.0 MB. Free memory was 272.1 MB in the beginning and 272.1 MB in the end (delta: 65.4 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-04-28 22:08:35,815 INFO L168 Benchmark]: CACSL2BoogieTranslator took 850.03 ms. Allocated memory is still 302.0 MB. Free memory was 272.8 MB in the beginning and 268.0 MB in the end (delta: 4.8 MB). Peak memory consumption was 23.2 MB. Max. memory is 16.0 GB. [2021-04-28 22:08:35,815 INFO L168 Benchmark]: Boogie Procedure Inliner took 70.87 ms. Allocated memory is still 302.0 MB. Free memory was 268.0 MB in the beginning and 265.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-28 22:08:35,815 INFO L168 Benchmark]: Boogie Preprocessor took 41.49 ms. Allocated memory is still 302.0 MB. Free memory was 265.9 MB in the beginning and 263.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-28 22:08:35,816 INFO L168 Benchmark]: RCFGBuilder took 1995.34 ms. Allocated memory was 302.0 MB in the beginning and 367.0 MB in the end (delta: 65.0 MB). Free memory was 263.8 MB in the beginning and 259.0 MB in the end (delta: 4.7 MB). Peak memory consumption was 73.7 MB. Max. memory is 16.0 GB. [2021-04-28 22:08:35,816 INFO L168 Benchmark]: TraceAbstraction took 55961.86 ms. Allocated memory was 367.0 MB in the beginning and 868.2 MB in the end (delta: 501.2 MB). Free memory was 259.0 MB in the beginning and 600.9 MB in the end (delta: -341.8 MB). Peak memory consumption was 159.4 MB. Max. memory is 16.0 GB. [2021-04-28 22:08:35,818 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 302.0 MB. Free memory was 272.1 MB in the beginning and 272.1 MB in the end (delta: 65.4 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 850.03 ms. Allocated memory is still 302.0 MB. Free memory was 272.8 MB in the beginning and 268.0 MB in the end (delta: 4.8 MB). Peak memory consumption was 23.2 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 70.87 ms. Allocated memory is still 302.0 MB. Free memory was 268.0 MB in the beginning and 265.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 41.49 ms. Allocated memory is still 302.0 MB. Free memory was 265.9 MB in the beginning and 263.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 1995.34 ms. Allocated memory was 302.0 MB in the beginning and 367.0 MB in the end (delta: 65.0 MB). Free memory was 263.8 MB in the beginning and 259.0 MB in the end (delta: 4.7 MB). Peak memory consumption was 73.7 MB. Max. memory is 16.0 GB. * TraceAbstraction took 55961.86 ms. Allocated memory was 367.0 MB in the beginning and 868.2 MB in the end (delta: 501.2 MB). Free memory was 259.0 MB in the beginning and 600.9 MB in the end (delta: -341.8 MB). Peak memory consumption was 159.4 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 37892.4ms, 101 PlacesBefore, 127 PlacesAfterwards, 93 TransitionsBefore, 118 TransitionsAfterwards, 1488 CoEnabledTransitionPairs, 8 FixpointIterations, 153 TrivialSequentialCompositions, 90 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 1 ChoiceCompositions, 245 TotalNumberOfCompositions, 12962 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3944, positive: 3713, positive conditional: 3713, positive unconditional: 0, negative: 231, negative conditional: 231, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1989, positive: 1943, positive conditional: 0, positive unconditional: 1943, negative: 46, negative conditional: 0, negative unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1989, positive: 1943, positive conditional: 0, positive unconditional: 1943, negative: 46, negative conditional: 0, negative unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1989, positive: 1912, positive conditional: 0, positive unconditional: 1912, negative: 77, negative conditional: 0, negative unconditional: 77, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 77, positive: 31, positive conditional: 0, positive unconditional: 31, negative: 46, negative conditional: 0, negative unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 704, positive: 137, positive conditional: 0, positive unconditional: 137, negative: 567, negative conditional: 0, negative unconditional: 567, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3944, positive: 1770, positive conditional: 1770, positive unconditional: 0, negative: 185, negative conditional: 185, negative unconditional: 0, unknown: 1989, unknown conditional: 1989, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1988, Positive cache size: 1942, Positive conditional cache size: 1942, Positive unconditional cache size: 0, Negative cache size: 46, Negative conditional cache size: 46, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 855.9ms, 123 PlacesBefore, 70 PlacesAfterwards, 61 TransitionsBefore, 61 TransitionsAfterwards, 1680 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 2204 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 482, positive: 406, positive conditional: 406, positive unconditional: 0, negative: 76, negative conditional: 76, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 185, positive: 162, positive conditional: 23, positive unconditional: 139, negative: 23, negative conditional: 2, negative unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 185, positive: 162, positive conditional: 23, positive unconditional: 139, negative: 23, negative conditional: 2, negative unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 185, positive: 162, positive conditional: 0, positive unconditional: 162, negative: 23, negative conditional: 0, negative unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 23, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 23, negative conditional: 2, negative unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 826, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 826, negative conditional: 40, negative unconditional: 785, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 482, positive: 244, positive conditional: 244, positive unconditional: 0, negative: 53, negative conditional: 53, negative unconditional: 0, unknown: 185, unknown conditional: 185, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2173, Positive cache size: 2104, Positive conditional cache size: 2104, Positive unconditional cache size: 0, Negative cache size: 69, Negative conditional cache size: 69, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 168.7ms, 72 PlacesBefore, 48 PlacesAfterwards, 41 TransitionsBefore, 41 TransitionsAfterwards, 904 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 339 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 67, positive: 54, positive conditional: 54, positive unconditional: 0, negative: 13, negative conditional: 13, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 8, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 8, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 8, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 5, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 132, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 132, negative conditional: 0, negative unconditional: 132, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 67, positive: 51, positive conditional: 51, positive unconditional: 0, negative: 8, negative conditional: 8, negative unconditional: 0, unknown: 8, unknown conditional: 8, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2181, Positive cache size: 2107, Positive conditional cache size: 2107, Positive unconditional cache size: 0, Negative cache size: 74, Negative conditional cache size: 74, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1370.5ms, 53 PlacesBefore, 53 PlacesAfterwards, 66 TransitionsBefore, 66 TransitionsAfterwards, 1256 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 595 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 169, positive: 156, positive conditional: 156, positive unconditional: 0, negative: 13, negative conditional: 13, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 26, positive: 23, positive conditional: 16, positive unconditional: 7, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 26, positive: 23, positive conditional: 16, positive unconditional: 7, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 26, positive: 23, positive conditional: 0, positive unconditional: 23, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 102, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 102, negative conditional: 0, negative unconditional: 102, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 169, positive: 133, positive conditional: 133, positive unconditional: 0, negative: 10, negative conditional: 10, negative unconditional: 0, unknown: 26, unknown conditional: 26, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2207, Positive cache size: 2130, Positive conditional cache size: 2130, Positive unconditional cache size: 0, Negative cache size: 77, Negative conditional cache size: 77, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1107.1ms, 62 PlacesBefore, 62 PlacesAfterwards, 91 TransitionsBefore, 91 TransitionsAfterwards, 1612 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 1112 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 172, positive: 153, positive conditional: 153, positive unconditional: 0, negative: 19, negative conditional: 19, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 16, positive: 16, positive conditional: 12, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 16, positive: 16, positive conditional: 12, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 16, positive: 16, positive conditional: 0, positive unconditional: 16, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 172, positive: 137, positive conditional: 137, positive unconditional: 0, negative: 19, negative conditional: 19, negative unconditional: 0, unknown: 16, unknown conditional: 16, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2223, Positive cache size: 2146, Positive conditional cache size: 2146, Positive unconditional cache size: 0, Negative cache size: 77, Negative conditional cache size: 77, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1268.6ms, 70 PlacesBefore, 68 PlacesAfterwards, 91 TransitionsBefore, 91 TransitionsAfterwards, 1530 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 1055 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 161, positive: 142, positive conditional: 142, positive unconditional: 0, negative: 19, negative conditional: 19, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 17, positive: 17, positive conditional: 17, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 17, positive: 17, positive conditional: 17, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 17, positive: 17, positive conditional: 0, positive unconditional: 17, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 161, positive: 125, positive conditional: 125, positive unconditional: 0, negative: 19, negative conditional: 19, negative unconditional: 0, unknown: 17, unknown conditional: 17, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2240, Positive cache size: 2163, Positive conditional cache size: 2163, Positive unconditional cache size: 0, Negative cache size: 77, Negative conditional cache size: 77, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 958.3ms, 67 PlacesBefore, 65 PlacesAfterwards, 84 TransitionsBefore, 84 TransitionsAfterwards, 1144 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 1710 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 279, positive: 245, positive conditional: 245, positive unconditional: 0, negative: 34, negative conditional: 34, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 66, positive: 64, positive conditional: 54, positive unconditional: 10, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 66, positive: 64, positive conditional: 54, positive unconditional: 10, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 66, positive: 64, positive conditional: 0, positive unconditional: 64, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 105, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 105, negative conditional: 105, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 279, positive: 181, positive conditional: 181, positive unconditional: 0, negative: 32, negative conditional: 32, negative unconditional: 0, unknown: 66, unknown conditional: 66, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2306, Positive cache size: 2227, Positive conditional cache size: 2227, Positive unconditional cache size: 0, Negative cache size: 79, Negative conditional cache size: 79, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 211.9ms, 67 PlacesBefore, 54 PlacesAfterwards, 45 TransitionsBefore, 45 TransitionsAfterwards, 256 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 327 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 39, positive: 21, positive conditional: 21, positive unconditional: 0, negative: 18, negative conditional: 18, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 5, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 5, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 53, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 53, negative conditional: 0, negative unconditional: 53, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 39, positive: 17, positive conditional: 17, positive unconditional: 0, negative: 17, negative conditional: 17, negative unconditional: 0, unknown: 5, unknown conditional: 5, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2311, Positive cache size: 2231, Positive conditional cache size: 2231, Positive unconditional cache size: 0, Negative cache size: 80, Negative conditional cache size: 80, Negative unconditional cache size: 0 - CounterExampleResult [Line: 18]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L709] 0 int __unbuffered_cnt = 0; [L711] 0 int __unbuffered_p1_EAX = 0; [L713] 0 int __unbuffered_p2_EAX = 0; [L714] 0 _Bool main$tmp_guard0; [L715] 0 _Bool main$tmp_guard1; [L717] 0 int x = 0; [L719] 0 int y = 0; [L720] 0 _Bool y$flush_delayed; [L721] 0 int y$mem_tmp; [L722] 0 _Bool y$r_buff0_thd0; [L723] 0 _Bool y$r_buff0_thd1; [L724] 0 _Bool y$r_buff0_thd2; [L725] 0 _Bool y$r_buff0_thd3; [L726] 0 _Bool y$r_buff1_thd0; [L727] 0 _Bool y$r_buff1_thd1; [L728] 0 _Bool y$r_buff1_thd2; [L729] 0 _Bool y$r_buff1_thd3; [L730] 0 _Bool y$read_delayed; [L731] 0 int *y$read_delayed_var; [L732] 0 int y$w_buff0; [L733] 0 _Bool y$w_buff0_used; [L734] 0 int y$w_buff1; [L735] 0 _Bool y$w_buff1_used; [L737] 0 int z = 0; [L738] 0 _Bool weak$$choice0; [L739] 0 _Bool weak$$choice2; [L823] 0 pthread_t t1394; [L824] FCALL, FORK 0 pthread_create(&t1394, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L825] 0 pthread_t t1395; [L826] FCALL, FORK 0 pthread_create(&t1395, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=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, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L827] 0 pthread_t t1396; [L828] FCALL, FORK 0 pthread_create(&t1396, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=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, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L786] 3 y$w_buff1 = y$w_buff0 [L787] 3 y$w_buff0 = 1 [L788] 3 y$w_buff1_used = y$w_buff0_used [L789] 3 y$w_buff0_used = (_Bool)1 [L18] COND FALSE 3 !(!expression) [L791] 3 y$r_buff1_thd0 = y$r_buff0_thd0 [L792] 3 y$r_buff1_thd1 = y$r_buff0_thd1 [L793] 3 y$r_buff1_thd2 = y$r_buff0_thd2 [L794] 3 y$r_buff1_thd3 = y$r_buff0_thd3 [L795] 3 y$r_buff0_thd3 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=0] [L798] 3 __unbuffered_p2_EAX = z VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=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, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=0] [L743] 1 z = 1 [L746] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=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, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L758] 2 x = 2 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=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, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L761] 2 weak$$choice0 = __VERIFIER_nondet_bool() [L762] 2 weak$$choice2 = __VERIFIER_nondet_bool() [L763] 2 y$flush_delayed = weak$$choice2 [L764] 2 y$mem_tmp = y [L765] EXPR 2 !y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff1) [L765] 2 y = !y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff1) [L766] EXPR 2 weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff0)) [L766] 2 y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff0)) [L767] EXPR 2 weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff1 : y$w_buff1)) [L767] 2 y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff1 : y$w_buff1)) [L768] EXPR 2 weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used)) [L768] 2 y$w_buff0_used = weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used)) [L769] EXPR 2 weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L769] 2 y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L770] EXPR 2 weak$$choice2 ? y$r_buff0_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff0_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2)) [L770] 2 y$r_buff0_thd2 = weak$$choice2 ? y$r_buff0_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff0_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2)) [L771] EXPR 2 weak$$choice2 ? y$r_buff1_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff1_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L771] 2 y$r_buff1_thd2 = weak$$choice2 ? y$r_buff1_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff1_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L772] 2 __unbuffered_p1_EAX = y [L773] EXPR 2 y$flush_delayed ? y$mem_tmp : y [L773] 2 y = y$flush_delayed ? y$mem_tmp : y [L774] 2 y$flush_delayed = (_Bool)0 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=2, weak$$choice2=1, x=2, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L779] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L781] 2 return 0; VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=2, weak$$choice2=1, x=2, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L751] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L753] 1 return 0; [L801] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y) [L801] 3 y = y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y) [L802] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used [L802] 3 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used [L803] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$w_buff1_used [L803] 3 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$w_buff1_used [L804] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3 [L804] 3 y$r_buff0_thd3 = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3 [L805] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$r_buff1_thd3 [L805] 3 y$r_buff1_thd3 = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$r_buff1_thd3 [L808] 3 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=3, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=2, weak$$choice2=1, x=2, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L830] 0 main$tmp_guard0 = __unbuffered_cnt == 3 [L3] COND FALSE 0 !(!cond) [L834] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L834] EXPR 0 y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y [L834] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L834] 0 y = y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L835] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L835] 0 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L836] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L836] 0 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L837] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L837] 0 y$r_buff0_thd0 = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L838] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 [L838] 0 y$r_buff1_thd0 = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 [L841] 0 main$tmp_guard1 = !(x == 2 && __unbuffered_p1_EAX == 0 && __unbuffered_p2_EAX == 0) [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=3, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=2, weak$$choice2=1, x=2, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 95 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 16.5ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 55640.6ms, OverallIterations: 8, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 10170.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 38053.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 73 SDtfs, 70 SDslu, 22 SDs, 0 SdLazy, 331 SolverSat, 149 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 388.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 29 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 113.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=698occurred in iteration=5, InterpolantAutomatonStates: 37, 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: 34.1ms SsaConstructionTime, 460.5ms SatisfiabilityAnalysisTime, 599.6ms InterpolantComputationTime, 109 NumberOfCodeBlocks, 109 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 84 ConstructedInterpolants, 0 QuantifiedInterpolants, 422 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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...