/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe022_rmo.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-24 19:55:09,700 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-24 19:55:09,703 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-24 19:55:09,744 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-24 19:55:09,745 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-24 19:55:09,748 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-24 19:55:09,751 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-24 19:55:09,757 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-24 19:55:09,759 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-24 19:55:09,764 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-24 19:55:09,765 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-24 19:55:09,766 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-24 19:55:09,767 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-24 19:55:09,769 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-24 19:55:09,770 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-24 19:55:09,771 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-24 19:55:09,774 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-24 19:55:09,775 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-24 19:55:09,778 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-24 19:55:09,786 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-24 19:55:09,788 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-24 19:55:09,790 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-24 19:55:09,791 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-24 19:55:09,791 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-24 19:55:09,793 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-24 19:55:09,801 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-24 19:55:09,801 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-24 19:55:09,802 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-24 19:55:09,803 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf [2021-03-24 19:55:09,837 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-24 19:55:09,837 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-24 19:55:09,841 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-24 19:55:09,841 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-24 19:55:09,841 INFO L138 SettingsManager]: * Use SBE=true [2021-03-24 19:55:09,841 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-24 19:55:09,841 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-24 19:55:09,841 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-24 19:55:09,842 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-24 19:55:09,842 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-24 19:55:09,843 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-24 19:55:09,843 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-24 19:55:09,843 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-24 19:55:09,843 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-24 19:55:09,843 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-24 19:55:09,843 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-24 19:55:09,843 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-24 19:55:09,844 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-24 19:55:09,844 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-24 19:55:09,844 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-24 19:55:09,844 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-24 19:55:09,844 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-24 19:55:09,844 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-24 19:55:09,844 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-24 19:55:09,845 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-24 19:55:09,845 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-24 19:55:09,845 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-24 19:55:09,845 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-24 19:55:09,845 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-24 19:55:10,156 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-24 19:55:10,186 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-24 19:55:10,188 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-24 19:55:10,189 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-24 19:55:10,189 INFO L275 PluginConnector]: CDTParser initialized [2021-03-24 19:55:10,190 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe022_rmo.opt.i [2021-03-24 19:55:10,255 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/31cd1b575/cac8b7ba62104d5fbca7f59989172102/FLAGd58dc3620 [2021-03-24 19:55:10,829 INFO L306 CDTParser]: Found 1 translation units. [2021-03-24 19:55:10,829 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe022_rmo.opt.i [2021-03-24 19:55:10,839 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/31cd1b575/cac8b7ba62104d5fbca7f59989172102/FLAGd58dc3620 [2021-03-24 19:55:11,097 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/31cd1b575/cac8b7ba62104d5fbca7f59989172102 [2021-03-24 19:55:11,099 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-24 19:55:11,100 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-24 19:55:11,102 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-24 19:55:11,102 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-24 19:55:11,105 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-24 19:55:11,106 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.03 07:55:11" (1/1) ... [2021-03-24 19:55:11,107 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@706260b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:55:11, skipping insertion in model container [2021-03-24 19:55:11,107 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.03 07:55:11" (1/1) ... [2021-03-24 19:55:11,119 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-24 19:55:11,151 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-24 19:55:11,300 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/safe022_rmo.opt.i[949,962] [2021-03-24 19:55:11,529 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-24 19:55:11,537 INFO L203 MainTranslator]: Completed pre-run [2021-03-24 19:55:11,549 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/safe022_rmo.opt.i[949,962] [2021-03-24 19:55:11,602 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-24 19:55:11,677 INFO L208 MainTranslator]: Completed translation [2021-03-24 19:55:11,678 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:55:11 WrapperNode [2021-03-24 19:55:11,678 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-24 19:55:11,679 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-24 19:55:11,680 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-24 19:55:11,681 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-24 19:55:11,687 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:55:11" (1/1) ... [2021-03-24 19:55:11,719 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:55:11" (1/1) ... [2021-03-24 19:55:11,748 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-24 19:55:11,749 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-24 19:55:11,749 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-24 19:55:11,749 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-24 19:55:11,756 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:55:11" (1/1) ... [2021-03-24 19:55:11,756 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:55:11" (1/1) ... [2021-03-24 19:55:11,774 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:55:11" (1/1) ... [2021-03-24 19:55:11,774 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:55:11" (1/1) ... [2021-03-24 19:55:11,780 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:55:11" (1/1) ... [2021-03-24 19:55:11,783 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:55:11" (1/1) ... [2021-03-24 19:55:11,785 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:55:11" (1/1) ... [2021-03-24 19:55:11,806 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-24 19:55:11,807 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-24 19:55:11,807 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-24 19:55:11,807 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-24 19:55:11,808 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:55:11" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-24 19:55:11,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-24 19:55:11,878 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-24 19:55:11,878 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-24 19:55:11,879 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-24 19:55:11,879 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-24 19:55:11,879 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-24 19:55:11,880 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-24 19:55:11,880 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-24 19:55:11,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-24 19:55:11,881 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-24 19:55:11,881 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-24 19:55:11,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-24 19:55:11,882 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-24 19:55:13,597 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-24 19:55:13,598 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-03-24 19:55:13,599 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.03 07:55:13 BoogieIcfgContainer [2021-03-24 19:55:13,600 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-24 19:55:13,601 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-24 19:55:13,601 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-24 19:55:13,603 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-24 19:55:13,603 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.03 07:55:11" (1/3) ... [2021-03-24 19:55:13,604 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bb09451 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.03 07:55:13, skipping insertion in model container [2021-03-24 19:55:13,604 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:55:11" (2/3) ... [2021-03-24 19:55:13,605 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bb09451 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.03 07:55:13, skipping insertion in model container [2021-03-24 19:55:13,605 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.03 07:55:13" (3/3) ... [2021-03-24 19:55:13,606 INFO L111 eAbstractionObserver]: Analyzing ICFG safe022_rmo.opt.i [2021-03-24 19:55:13,611 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-24 19:55:13,614 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-03-24 19:55:13,615 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-24 19:55:13,645 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,646 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,646 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,646 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,646 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,646 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,646 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,646 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,647 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,647 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,647 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,647 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,647 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,647 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,647 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,648 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,648 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,648 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,648 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,648 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,648 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,648 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,648 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,649 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,649 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,649 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,649 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,649 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,649 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,650 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,650 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,650 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,650 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,650 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,651 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,651 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,651 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,651 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,651 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,651 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,651 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,651 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,652 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,652 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,652 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,652 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,652 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,652 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,652 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,652 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,652 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,652 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,653 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,653 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,653 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,653 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,653 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,653 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,653 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,653 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,653 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,653 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,653 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,654 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,654 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,654 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,654 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,654 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,654 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,654 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,654 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,654 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,654 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,655 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,655 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,655 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,655 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,655 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,655 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,655 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,657 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,657 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,657 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,657 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,657 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,657 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,657 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,658 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,658 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,658 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,658 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,658 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,658 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,658 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,658 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,658 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,658 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,659 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,659 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,659 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,659 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,659 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,659 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,659 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,659 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,659 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,659 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,660 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,660 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,660 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,660 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,660 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,660 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,660 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,660 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,660 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,661 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,661 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,662 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,663 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,663 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,663 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,663 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,663 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,663 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,663 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,664 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,664 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,664 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,664 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,664 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,664 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,664 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,664 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,665 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,665 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,666 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,666 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,666 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,667 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,667 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,667 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,667 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,667 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,667 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,667 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,668 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,668 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,669 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,669 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,669 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,669 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,670 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,670 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,670 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,670 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,670 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,670 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,670 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,670 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,670 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,671 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,671 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,671 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,671 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,671 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,671 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,671 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,671 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,671 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,672 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,672 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,672 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,672 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,672 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,672 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,672 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,672 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,672 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,673 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,673 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:55:13,675 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-24 19:55:13,690 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-03-24 19:55:13,716 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-24 19:55:13,716 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-24 19:55:13,716 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-24 19:55:13,716 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-24 19:55:13,717 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-24 19:55:13,717 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-24 19:55:13,717 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-24 19:55:13,717 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-24 19:55:13,730 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 86 places, 81 transitions, 172 flow [2021-03-24 19:55:13,756 INFO L129 PetriNetUnfolder]: 2/79 cut-off events. [2021-03-24 19:55:13,756 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-24 19:55:13,759 INFO L84 FinitePrefix]: Finished finitePrefix Result has 86 conditions, 79 events. 2/79 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 46. Up to 2 conditions per place. [2021-03-24 19:55:13,759 INFO L82 GeneralOperation]: Start removeDead. Operand has 86 places, 81 transitions, 172 flow [2021-03-24 19:55:13,762 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 84 places, 79 transitions, 164 flow [2021-03-24 19:55:13,764 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-24 19:55:13,773 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 84 places, 79 transitions, 164 flow [2021-03-24 19:55:13,776 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 84 places, 79 transitions, 164 flow [2021-03-24 19:55:13,777 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 84 places, 79 transitions, 164 flow [2021-03-24 19:55:13,790 INFO L129 PetriNetUnfolder]: 2/79 cut-off events. [2021-03-24 19:55:13,790 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-24 19:55:13,791 INFO L84 FinitePrefix]: Finished finitePrefix Result has 86 conditions, 79 events. 2/79 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 45 event pairs, 0 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 46. Up to 2 conditions per place. [2021-03-24 19:55:13,792 INFO L142 LiptonReduction]: Number of co-enabled transitions 926 [2021-03-24 19:55:14,869 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 58 [2021-03-24 19:55:15,306 WARN L205 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 87 [2021-03-24 19:55:15,455 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2021-03-24 19:55:16,342 INFO L154 LiptonReduction]: Checked pairs total: 1486 [2021-03-24 19:55:16,343 INFO L156 LiptonReduction]: Total number of compositions: 56 [2021-03-24 19:55:16,344 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2581 [2021-03-24 19:55:16,351 INFO L129 PetriNetUnfolder]: 0/10 cut-off events. [2021-03-24 19:55:16,351 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-24 19:55:16,351 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:55:16,352 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 19:55:16,352 INFO L428 AbstractCegarLoop]: === Iteration 1 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 19:55:16,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:55:16,356 INFO L82 PathProgramCache]: Analyzing trace with hash 1946545486, now seen corresponding path program 1 times [2021-03-24 19:55:16,362 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:55:16,362 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452259960] [2021-03-24 19:55:16,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:55:16,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 19:55:16,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:55:16,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:55:16,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:55:16,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:55:16,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 19:55:16,556 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452259960] [2021-03-24 19:55:16,557 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 19:55:16,557 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-24 19:55:16,557 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644866717] [2021-03-24 19:55:16,563 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-24 19:55:16,564 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 19:55:16,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-24 19:55:16,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-24 19:55:16,575 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 137 [2021-03-24 19:55:16,577 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 31 transitions, 68 flow. Second operand has 3 states, 3 states have (on average 116.66666666666667) internal successors, (350), 3 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:55:16,577 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 19:55:16,577 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 137 [2021-03-24 19:55:16,578 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 19:55:16,632 INFO L129 PetriNetUnfolder]: 16/69 cut-off events. [2021-03-24 19:55:16,632 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-24 19:55:16,633 INFO L84 FinitePrefix]: Finished finitePrefix Result has 111 conditions, 69 events. 16/69 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 220 event pairs, 11 based on Foata normal form. 9/75 useless extension candidates. Maximal degree in co-relation 95. Up to 27 conditions per place. [2021-03-24 19:55:16,634 INFO L132 encePairwiseOnDemand]: 133/137 looper letters, 7 selfloop transitions, 2 changer transitions 0/31 dead transitions. [2021-03-24 19:55:16,635 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 31 transitions, 86 flow [2021-03-24 19:55:16,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-24 19:55:16,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-24 19:55:16,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 360 transitions. [2021-03-24 19:55:16,650 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8759124087591241 [2021-03-24 19:55:16,650 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 360 transitions. [2021-03-24 19:55:16,651 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 360 transitions. [2021-03-24 19:55:16,653 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 19:55:16,655 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 360 transitions. [2021-03-24 19:55:16,660 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 120.0) internal successors, (360), 3 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:55:16,667 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 137.0) internal successors, (548), 4 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:55:16,668 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 137.0) internal successors, (548), 4 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:55:16,669 INFO L185 Difference]: Start difference. First operand has 37 places, 31 transitions, 68 flow. Second operand 3 states and 360 transitions. [2021-03-24 19:55:16,670 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 31 transitions, 86 flow [2021-03-24 19:55:16,673 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 31 transitions, 84 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-24 19:55:16,674 INFO L241 Difference]: Finished difference. Result has 35 places, 28 transitions, 64 flow [2021-03-24 19:55:16,676 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=64, PETRI_PLACES=35, PETRI_TRANSITIONS=28} [2021-03-24 19:55:16,676 INFO L343 CegarLoopForPetriNet]: 37 programPoint places, -2 predicate places. [2021-03-24 19:55:16,676 INFO L480 AbstractCegarLoop]: Abstraction has has 35 places, 28 transitions, 64 flow [2021-03-24 19:55:16,677 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 116.66666666666667) internal successors, (350), 3 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:55:16,677 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:55:16,677 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 19:55:16,677 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-24 19:55:16,677 INFO L428 AbstractCegarLoop]: === Iteration 2 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 19:55:16,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:55:16,678 INFO L82 PathProgramCache]: Analyzing trace with hash -1867850295, now seen corresponding path program 1 times [2021-03-24 19:55:16,679 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:55:16,679 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457172507] [2021-03-24 19:55:16,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:55:16,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 19:55:16,744 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:55:16,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:55:16,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:55:16,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:55:16,753 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-03-24 19:55:16,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 19:55:16,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 19:55:16,757 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457172507] [2021-03-24 19:55:16,757 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 19:55:16,757 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-24 19:55:16,757 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560723190] [2021-03-24 19:55:16,758 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-24 19:55:16,759 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 19:55:16,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-24 19:55:16,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-24 19:55:16,760 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 137 [2021-03-24 19:55:16,761 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 28 transitions, 64 flow. Second operand has 4 states, 4 states have (on average 116.75) internal successors, (467), 4 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:55:16,761 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 19:55:16,761 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 137 [2021-03-24 19:55:16,761 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 19:55:16,801 INFO L129 PetriNetUnfolder]: 0/41 cut-off events. [2021-03-24 19:55:16,801 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-24 19:55:16,801 INFO L84 FinitePrefix]: Finished finitePrefix Result has 59 conditions, 41 events. 0/41 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 94 event pairs, 0 based on Foata normal form. 2/40 useless extension candidates. Maximal degree in co-relation 0. Up to 5 conditions per place. [2021-03-24 19:55:16,802 INFO L132 encePairwiseOnDemand]: 132/137 looper letters, 2 selfloop transitions, 2 changer transitions 8/31 dead transitions. [2021-03-24 19:55:16,802 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 31 transitions, 86 flow [2021-03-24 19:55:16,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-24 19:55:16,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-24 19:55:16,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 590 transitions. [2021-03-24 19:55:16,804 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8613138686131386 [2021-03-24 19:55:16,804 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 590 transitions. [2021-03-24 19:55:16,805 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 590 transitions. [2021-03-24 19:55:16,805 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 19:55:16,805 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 590 transitions. [2021-03-24 19:55:16,806 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 118.0) internal successors, (590), 5 states have internal predecessors, (590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:55:16,809 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 137.0) internal successors, (822), 6 states have internal predecessors, (822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:55:16,810 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 137.0) internal successors, (822), 6 states have internal predecessors, (822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:55:16,810 INFO L185 Difference]: Start difference. First operand has 35 places, 28 transitions, 64 flow. Second operand 5 states and 590 transitions. [2021-03-24 19:55:16,810 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 31 transitions, 86 flow [2021-03-24 19:55:16,810 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 31 transitions, 82 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-24 19:55:16,811 INFO L241 Difference]: Finished difference. Result has 40 places, 23 transitions, 62 flow [2021-03-24 19:55:16,811 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=62, PETRI_PLACES=40, PETRI_TRANSITIONS=23} [2021-03-24 19:55:16,812 INFO L343 CegarLoopForPetriNet]: 37 programPoint places, 3 predicate places. [2021-03-24 19:55:16,812 INFO L480 AbstractCegarLoop]: Abstraction has has 40 places, 23 transitions, 62 flow [2021-03-24 19:55:16,812 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 116.75) internal successors, (467), 4 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:55:16,812 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:55:16,812 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 19:55:16,813 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-24 19:55:16,813 INFO L428 AbstractCegarLoop]: === Iteration 3 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 19:55:16,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:55:16,814 INFO L82 PathProgramCache]: Analyzing trace with hash -2091268297, now seen corresponding path program 1 times [2021-03-24 19:55:16,814 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:55:16,814 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103475611] [2021-03-24 19:55:16,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:55:16,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 19:55:16,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:55:16,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:55:16,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:55:16,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:55:16,899 INFO L142 QuantifierPusher]: treesize reduction 3, result has 75.0 percent of original size [2021-03-24 19:55:16,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 19:55:16,909 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-03-24 19:55:16,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 19:55:16,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 19:55:16,915 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103475611] [2021-03-24 19:55:16,915 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 19:55:16,915 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-24 19:55:16,915 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478566906] [2021-03-24 19:55:16,915 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-24 19:55:16,915 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 19:55:16,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-24 19:55:16,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-24 19:55:16,917 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 137 [2021-03-24 19:55:16,918 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 23 transitions, 62 flow. Second operand has 5 states, 5 states have (on average 110.0) internal successors, (550), 5 states have internal predecessors, (550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:55:16,918 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 19:55:16,918 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 137 [2021-03-24 19:55:16,918 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 19:55:16,990 INFO L129 PetriNetUnfolder]: 8/50 cut-off events. [2021-03-24 19:55:16,990 INFO L130 PetriNetUnfolder]: For 20/22 co-relation queries the response was YES. [2021-03-24 19:55:16,991 INFO L84 FinitePrefix]: Finished finitePrefix Result has 102 conditions, 50 events. 8/50 cut-off events. For 20/22 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 129 event pairs, 0 based on Foata normal form. 5/55 useless extension candidates. Maximal degree in co-relation 82. Up to 13 conditions per place. [2021-03-24 19:55:16,992 INFO L132 encePairwiseOnDemand]: 130/137 looper letters, 6 selfloop transitions, 7 changer transitions 6/35 dead transitions. [2021-03-24 19:55:16,992 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 35 transitions, 137 flow [2021-03-24 19:55:16,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-24 19:55:16,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-24 19:55:16,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1004 transitions. [2021-03-24 19:55:16,995 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8142741281427412 [2021-03-24 19:55:16,996 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1004 transitions. [2021-03-24 19:55:16,996 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1004 transitions. [2021-03-24 19:55:16,996 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 19:55:16,996 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1004 transitions. [2021-03-24 19:55:17,000 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 111.55555555555556) internal successors, (1004), 9 states have internal predecessors, (1004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:55:17,003 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 137.0) internal successors, (1370), 10 states have internal predecessors, (1370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:55:17,004 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 137.0) internal successors, (1370), 10 states have internal predecessors, (1370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:55:17,004 INFO L185 Difference]: Start difference. First operand has 40 places, 23 transitions, 62 flow. Second operand 9 states and 1004 transitions. [2021-03-24 19:55:17,004 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 35 transitions, 137 flow [2021-03-24 19:55:17,005 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 35 transitions, 123 flow, removed 4 selfloop flow, removed 4 redundant places. [2021-03-24 19:55:17,005 INFO L241 Difference]: Finished difference. Result has 43 places, 27 transitions, 101 flow [2021-03-24 19:55:17,006 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=101, PETRI_PLACES=43, PETRI_TRANSITIONS=27} [2021-03-24 19:55:17,006 INFO L343 CegarLoopForPetriNet]: 37 programPoint places, 6 predicate places. [2021-03-24 19:55:17,006 INFO L480 AbstractCegarLoop]: Abstraction has has 43 places, 27 transitions, 101 flow [2021-03-24 19:55:17,006 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 110.0) internal successors, (550), 5 states have internal predecessors, (550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:55:17,006 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:55:17,007 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 19:55:17,007 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-24 19:55:17,007 INFO L428 AbstractCegarLoop]: === Iteration 4 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 19:55:17,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:55:17,008 INFO L82 PathProgramCache]: Analyzing trace with hash 292272359, now seen corresponding path program 1 times [2021-03-24 19:55:17,008 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:55:17,009 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955422420] [2021-03-24 19:55:17,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:55:17,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 19:55:17,080 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:55:17,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:55:17,080 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:55:17,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:55:17,084 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:55:17,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:55:17,088 INFO L142 QuantifierPusher]: treesize reduction 3, result has 75.0 percent of original size [2021-03-24 19:55:17,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 19:55:17,099 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-03-24 19:55:17,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 19:55:17,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 19:55:17,105 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955422420] [2021-03-24 19:55:17,105 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 19:55:17,105 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-24 19:55:17,105 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066413040] [2021-03-24 19:55:17,106 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-24 19:55:17,106 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 19:55:17,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-24 19:55:17,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-03-24 19:55:17,108 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 137 [2021-03-24 19:55:17,108 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 27 transitions, 101 flow. Second operand has 6 states, 6 states have (on average 110.0) internal successors, (660), 6 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:55:17,109 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 19:55:17,109 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 137 [2021-03-24 19:55:17,109 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 19:55:17,168 INFO L129 PetriNetUnfolder]: 4/43 cut-off events. [2021-03-24 19:55:17,168 INFO L130 PetriNetUnfolder]: For 56/60 co-relation queries the response was YES. [2021-03-24 19:55:17,169 INFO L84 FinitePrefix]: Finished finitePrefix Result has 117 conditions, 43 events. 4/43 cut-off events. For 56/60 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 103 event pairs, 2 based on Foata normal form. 4/47 useless extension candidates. Maximal degree in co-relation 92. Up to 9 conditions per place. [2021-03-24 19:55:17,169 INFO L132 encePairwiseOnDemand]: 131/137 looper letters, 3 selfloop transitions, 4 changer transitions 7/30 dead transitions. [2021-03-24 19:55:17,169 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 30 transitions, 149 flow [2021-03-24 19:55:17,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-24 19:55:17,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-24 19:55:17,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 669 transitions. [2021-03-24 19:55:17,171 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8138686131386861 [2021-03-24 19:55:17,171 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 669 transitions. [2021-03-24 19:55:17,171 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 669 transitions. [2021-03-24 19:55:17,172 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 19:55:17,172 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 669 transitions. [2021-03-24 19:55:17,173 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 111.5) internal successors, (669), 6 states have internal predecessors, (669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:55:17,175 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 137.0) internal successors, (959), 7 states have internal predecessors, (959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:55:17,176 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 137.0) internal successors, (959), 7 states have internal predecessors, (959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:55:17,176 INFO L185 Difference]: Start difference. First operand has 43 places, 27 transitions, 101 flow. Second operand 6 states and 669 transitions. [2021-03-24 19:55:17,176 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 30 transitions, 149 flow [2021-03-24 19:55:17,177 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 30 transitions, 141 flow, removed 4 selfloop flow, removed 4 redundant places. [2021-03-24 19:55:17,178 INFO L241 Difference]: Finished difference. Result has 44 places, 23 transitions, 96 flow [2021-03-24 19:55:17,178 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=93, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=96, PETRI_PLACES=44, PETRI_TRANSITIONS=23} [2021-03-24 19:55:17,178 INFO L343 CegarLoopForPetriNet]: 37 programPoint places, 7 predicate places. [2021-03-24 19:55:17,179 INFO L480 AbstractCegarLoop]: Abstraction has has 44 places, 23 transitions, 96 flow [2021-03-24 19:55:17,179 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 110.0) internal successors, (660), 6 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:55:17,179 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:55:17,179 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 19:55:17,179 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-24 19:55:17,179 INFO L428 AbstractCegarLoop]: === Iteration 5 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 19:55:17,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:55:17,180 INFO L82 PathProgramCache]: Analyzing trace with hash -1498505165, now seen corresponding path program 1 times [2021-03-24 19:55:17,180 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:55:17,180 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779136909] [2021-03-24 19:55:17,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:55:17,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 19:55:17,258 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:55:17,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:55:17,259 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:55:17,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:55:17,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:55:17,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:55:17,268 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:55:17,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:55:17,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 19:55:17,269 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779136909] [2021-03-24 19:55:17,269 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 19:55:17,269 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-24 19:55:17,270 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455624512] [2021-03-24 19:55:17,270 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-24 19:55:17,270 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 19:55:17,271 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-24 19:55:17,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-24 19:55:17,272 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 137 [2021-03-24 19:55:17,273 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 23 transitions, 96 flow. Second operand has 4 states, 4 states have (on average 111.75) internal successors, (447), 4 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:55:17,273 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 19:55:17,273 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 137 [2021-03-24 19:55:17,273 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 19:55:17,300 INFO L129 PetriNetUnfolder]: 6/42 cut-off events. [2021-03-24 19:55:17,301 INFO L130 PetriNetUnfolder]: For 55/55 co-relation queries the response was YES. [2021-03-24 19:55:17,301 INFO L84 FinitePrefix]: Finished finitePrefix Result has 114 conditions, 42 events. 6/42 cut-off events. For 55/55 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 67 event pairs, 2 based on Foata normal form. 4/45 useless extension candidates. Maximal degree in co-relation 94. Up to 15 conditions per place. [2021-03-24 19:55:17,301 INFO L132 encePairwiseOnDemand]: 132/137 looper letters, 4 selfloop transitions, 3 changer transitions 5/30 dead transitions. [2021-03-24 19:55:17,301 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 30 transitions, 134 flow [2021-03-24 19:55:17,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-24 19:55:17,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-24 19:55:17,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 569 transitions. [2021-03-24 19:55:17,303 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8306569343065694 [2021-03-24 19:55:17,303 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 569 transitions. [2021-03-24 19:55:17,303 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 569 transitions. [2021-03-24 19:55:17,304 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 19:55:17,304 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 569 transitions. [2021-03-24 19:55:17,305 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 113.8) internal successors, (569), 5 states have internal predecessors, (569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:55:17,306 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 137.0) internal successors, (822), 6 states have internal predecessors, (822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:55:17,306 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 137.0) internal successors, (822), 6 states have internal predecessors, (822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:55:17,306 INFO L185 Difference]: Start difference. First operand has 44 places, 23 transitions, 96 flow. Second operand 5 states and 569 transitions. [2021-03-24 19:55:17,306 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 30 transitions, 134 flow [2021-03-24 19:55:17,307 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 30 transitions, 96 flow, removed 7 selfloop flow, removed 11 redundant places. [2021-03-24 19:55:17,308 INFO L241 Difference]: Finished difference. Result has 37 places, 25 transitions, 85 flow [2021-03-24 19:55:17,308 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=85, PETRI_PLACES=37, PETRI_TRANSITIONS=25} [2021-03-24 19:55:17,308 INFO L343 CegarLoopForPetriNet]: 37 programPoint places, 0 predicate places. [2021-03-24 19:55:17,308 INFO L480 AbstractCegarLoop]: Abstraction has has 37 places, 25 transitions, 85 flow [2021-03-24 19:55:17,309 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 111.75) internal successors, (447), 4 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:55:17,309 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:55:17,309 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 19:55:17,309 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-24 19:55:17,309 INFO L428 AbstractCegarLoop]: === Iteration 6 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 19:55:17,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:55:17,309 INFO L82 PathProgramCache]: Analyzing trace with hash 918200669, now seen corresponding path program 1 times [2021-03-24 19:55:17,310 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:55:17,310 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228286044] [2021-03-24 19:55:17,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:55:17,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 19:55:17,349 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:55:17,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:55:17,350 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:55:17,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:55:17,353 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:55:17,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:55:17,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:55:17,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:55:17,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:55:17,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:55:17,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 19:55:17,362 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228286044] [2021-03-24 19:55:17,362 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 19:55:17,362 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-24 19:55:17,362 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121870945] [2021-03-24 19:55:17,363 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-24 19:55:17,363 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 19:55:17,363 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-24 19:55:17,363 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-24 19:55:17,364 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 137 [2021-03-24 19:55:17,365 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 25 transitions, 85 flow. Second operand has 5 states, 5 states have (on average 111.8) internal successors, (559), 5 states have internal predecessors, (559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:55:17,365 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 19:55:17,365 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 137 [2021-03-24 19:55:17,365 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 19:55:17,395 INFO L129 PetriNetUnfolder]: 2/29 cut-off events. [2021-03-24 19:55:17,395 INFO L130 PetriNetUnfolder]: For 20/26 co-relation queries the response was YES. [2021-03-24 19:55:17,395 INFO L84 FinitePrefix]: Finished finitePrefix Result has 73 conditions, 29 events. 2/29 cut-off events. For 20/26 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 16 event pairs, 0 based on Foata normal form. 6/35 useless extension candidates. Maximal degree in co-relation 59. Up to 10 conditions per place. [2021-03-24 19:55:17,396 INFO L132 encePairwiseOnDemand]: 132/137 looper letters, 2 selfloop transitions, 5 changer transitions 3/28 dead transitions. [2021-03-24 19:55:17,396 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 28 transitions, 121 flow [2021-03-24 19:55:17,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-24 19:55:17,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-24 19:55:17,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 678 transitions. [2021-03-24 19:55:17,398 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8248175182481752 [2021-03-24 19:55:17,398 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 678 transitions. [2021-03-24 19:55:17,398 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 678 transitions. [2021-03-24 19:55:17,398 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 19:55:17,398 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 678 transitions. [2021-03-24 19:55:17,400 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 113.0) internal successors, (678), 6 states have internal predecessors, (678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:55:17,401 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 137.0) internal successors, (959), 7 states have internal predecessors, (959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:55:17,401 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 137.0) internal successors, (959), 7 states have internal predecessors, (959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:55:17,401 INFO L185 Difference]: Start difference. First operand has 37 places, 25 transitions, 85 flow. Second operand 6 states and 678 transitions. [2021-03-24 19:55:17,401 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 28 transitions, 121 flow [2021-03-24 19:55:17,402 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 28 transitions, 104 flow, removed 6 selfloop flow, removed 3 redundant places. [2021-03-24 19:55:17,403 INFO L241 Difference]: Finished difference. Result has 40 places, 25 transitions, 92 flow [2021-03-24 19:55:17,403 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=92, PETRI_PLACES=40, PETRI_TRANSITIONS=25} [2021-03-24 19:55:17,403 INFO L343 CegarLoopForPetriNet]: 37 programPoint places, 3 predicate places. [2021-03-24 19:55:17,403 INFO L480 AbstractCegarLoop]: Abstraction has has 40 places, 25 transitions, 92 flow [2021-03-24 19:55:17,403 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 111.8) internal successors, (559), 5 states have internal predecessors, (559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:55:17,404 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:55:17,404 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 19:55:17,404 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-24 19:55:17,404 INFO L428 AbstractCegarLoop]: === Iteration 7 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 19:55:17,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:55:17,404 INFO L82 PathProgramCache]: Analyzing trace with hash -686101057, now seen corresponding path program 1 times [2021-03-24 19:55:17,404 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:55:17,405 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603333110] [2021-03-24 19:55:17,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:55:17,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 19:55:17,459 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:55:17,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:55:17,461 INFO L142 QuantifierPusher]: treesize reduction 10, result has 67.7 percent of original size [2021-03-24 19:55:17,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-24 19:55:17,479 INFO L142 QuantifierPusher]: treesize reduction 21, result has 64.4 percent of original size [2021-03-24 19:55:17,481 INFO L147 QuantifierPusher]: treesize reduction 8, result has 78.9 percent of original size 30 [2021-03-24 19:55:17,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:55:17,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:55:17,501 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-03-24 19:55:17,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 19:55:17,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 19:55:17,508 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603333110] [2021-03-24 19:55:17,508 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 19:55:17,508 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-24 19:55:17,509 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133064711] [2021-03-24 19:55:17,509 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-24 19:55:17,509 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 19:55:17,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-24 19:55:17,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-24 19:55:17,510 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 137 [2021-03-24 19:55:17,511 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 25 transitions, 92 flow. Second operand has 6 states, 6 states have (on average 98.83333333333333) internal successors, (593), 6 states have internal predecessors, (593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:55:17,511 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 19:55:17,511 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 137 [2021-03-24 19:55:17,511 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 19:55:17,586 INFO L129 PetriNetUnfolder]: 3/38 cut-off events. [2021-03-24 19:55:17,586 INFO L130 PetriNetUnfolder]: For 32/32 co-relation queries the response was YES. [2021-03-24 19:55:17,586 INFO L84 FinitePrefix]: Finished finitePrefix Result has 104 conditions, 38 events. 3/38 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 42 event pairs, 1 based on Foata normal form. 1/39 useless extension candidates. Maximal degree in co-relation 80. Up to 13 conditions per place. [2021-03-24 19:55:17,586 INFO L132 encePairwiseOnDemand]: 131/137 looper letters, 9 selfloop transitions, 2 changer transitions 5/30 dead transitions. [2021-03-24 19:55:17,586 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 30 transitions, 140 flow [2021-03-24 19:55:17,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-24 19:55:17,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-24 19:55:17,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 696 transitions. [2021-03-24 19:55:17,589 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7257559958289885 [2021-03-24 19:55:17,589 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 696 transitions. [2021-03-24 19:55:17,589 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 696 transitions. [2021-03-24 19:55:17,589 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 19:55:17,590 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 696 transitions. [2021-03-24 19:55:17,591 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 99.42857142857143) internal successors, (696), 7 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:55:17,592 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 137.0) internal successors, (1096), 8 states have internal predecessors, (1096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:55:17,592 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 137.0) internal successors, (1096), 8 states have internal predecessors, (1096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:55:17,593 INFO L185 Difference]: Start difference. First operand has 40 places, 25 transitions, 92 flow. Second operand 7 states and 696 transitions. [2021-03-24 19:55:17,593 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 30 transitions, 140 flow [2021-03-24 19:55:17,594 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 30 transitions, 118 flow, removed 8 selfloop flow, removed 5 redundant places. [2021-03-24 19:55:17,595 INFO L241 Difference]: Finished difference. Result has 43 places, 25 transitions, 90 flow [2021-03-24 19:55:17,595 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=90, PETRI_PLACES=43, PETRI_TRANSITIONS=25} [2021-03-24 19:55:17,596 INFO L343 CegarLoopForPetriNet]: 37 programPoint places, 6 predicate places. [2021-03-24 19:55:17,596 INFO L480 AbstractCegarLoop]: Abstraction has has 43 places, 25 transitions, 90 flow [2021-03-24 19:55:17,596 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 98.83333333333333) internal successors, (593), 6 states have internal predecessors, (593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:55:17,596 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:55:17,596 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 19:55:17,596 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-24 19:55:17,596 INFO L428 AbstractCegarLoop]: === Iteration 8 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 19:55:17,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:55:17,597 INFO L82 PathProgramCache]: Analyzing trace with hash 1546900287, now seen corresponding path program 2 times [2021-03-24 19:55:17,597 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:55:17,597 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549733438] [2021-03-24 19:55:17,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:55:17,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-24 19:55:17,656 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-24 19:55:17,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-24 19:55:17,695 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-24 19:55:17,738 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-24 19:55:17,738 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-24 19:55:17,739 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-24 19:55:17,825 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.03 07:55:17 BasicIcfg [2021-03-24 19:55:17,825 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-24 19:55:17,826 INFO L168 Benchmark]: Toolchain (without parser) took 6725.22 ms. Allocated memory was 255.9 MB in the beginning and 457.2 MB in the end (delta: 201.3 MB). Free memory was 232.9 MB in the beginning and 183.6 MB in the end (delta: 49.4 MB). Peak memory consumption was 249.1 MB. Max. memory is 16.0 GB. [2021-03-24 19:55:17,830 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 255.9 MB. Free memory is still 237.4 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-24 19:55:17,831 INFO L168 Benchmark]: CACSL2BoogieTranslator took 576.23 ms. Allocated memory was 255.9 MB in the beginning and 379.6 MB in the end (delta: 123.7 MB). Free memory was 232.9 MB in the beginning and 339.6 MB in the end (delta: -106.6 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.0 GB. [2021-03-24 19:55:17,831 INFO L168 Benchmark]: Boogie Procedure Inliner took 68.64 ms. Allocated memory is still 379.6 MB. Free memory was 339.6 MB in the beginning and 337.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-24 19:55:17,831 INFO L168 Benchmark]: Boogie Preprocessor took 57.76 ms. Allocated memory is still 379.6 MB. Free memory was 337.5 MB in the beginning and 335.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-24 19:55:17,832 INFO L168 Benchmark]: RCFGBuilder took 1792.70 ms. Allocated memory is still 379.6 MB. Free memory was 335.4 MB in the beginning and 355.3 MB in the end (delta: -19.9 MB). Peak memory consumption was 67.8 MB. Max. memory is 16.0 GB. [2021-03-24 19:55:17,834 INFO L168 Benchmark]: TraceAbstraction took 4224.29 ms. Allocated memory was 379.6 MB in the beginning and 457.2 MB in the end (delta: 77.6 MB). Free memory was 355.3 MB in the beginning and 183.6 MB in the end (delta: 171.7 MB). Peak memory consumption was 248.2 MB. Max. memory is 16.0 GB. [2021-03-24 19:55:17,839 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 255.9 MB. Free memory is still 237.4 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 576.23 ms. Allocated memory was 255.9 MB in the beginning and 379.6 MB in the end (delta: 123.7 MB). Free memory was 232.9 MB in the beginning and 339.6 MB in the end (delta: -106.6 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 68.64 ms. Allocated memory is still 379.6 MB. Free memory was 339.6 MB in the beginning and 337.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 57.76 ms. Allocated memory is still 379.6 MB. Free memory was 337.5 MB in the beginning and 335.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 1792.70 ms. Allocated memory is still 379.6 MB. Free memory was 335.4 MB in the beginning and 355.3 MB in the end (delta: -19.9 MB). Peak memory consumption was 67.8 MB. Max. memory is 16.0 GB. * TraceAbstraction took 4224.29 ms. Allocated memory was 379.6 MB in the beginning and 457.2 MB in the end (delta: 77.6 MB). Free memory was 355.3 MB in the beginning and 183.6 MB in the end (delta: 171.7 MB). Peak memory consumption was 248.2 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2567.1ms, 84 PlacesBefore, 37 PlacesAfterwards, 79 TransitionsBefore, 31 TransitionsAfterwards, 926 CoEnabledTransitionPairs, 4 FixpointIterations, 26 TrivialSequentialCompositions, 27 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 1 ChoiceCompositions, 56 TotalNumberOfCompositions, 1486 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 921, positive: 869, positive conditional: 0, positive unconditional: 869, negative: 52, negative conditional: 0, negative unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 655, positive: 628, positive conditional: 0, positive unconditional: 628, negative: 27, negative conditional: 0, negative unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 655, positive: 628, positive conditional: 0, positive unconditional: 628, negative: 27, negative conditional: 0, negative unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 655, positive: 626, positive conditional: 0, positive unconditional: 626, negative: 29, negative conditional: 0, negative unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 29, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 27, negative conditional: 0, negative unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 394, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 385, negative conditional: 0, negative unconditional: 385, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 921, positive: 241, positive conditional: 0, positive unconditional: 241, negative: 25, negative conditional: 0, negative unconditional: 25, unknown: 655, unknown conditional: 0, unknown unconditional: 655] , Statistics on independence cache: Total cache size (in pairs): 103, Positive cache size: 88, Positive conditional cache size: 0, Positive unconditional cache size: 88, Negative cache size: 15, Negative conditional cache size: 0, Negative unconditional cache size: 15 - CounterExampleResult [Line: 18]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L708] 0 int __unbuffered_cnt = 0; [L710] 0 int __unbuffered_p1_EAX = 0; [L712] 0 int __unbuffered_p1_EBX = 0; [L713] 0 _Bool main$tmp_guard0; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0] [L714] 0 _Bool main$tmp_guard1; [L716] 0 int x = 0; [L718] 0 int y = 0; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0] [L719] 0 _Bool y$flush_delayed; [L720] 0 int y$mem_tmp; [L721] 0 _Bool y$r_buff0_thd0; [L722] 0 _Bool y$r_buff0_thd1; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0] [L723] 0 _Bool y$r_buff0_thd2; [L724] 0 _Bool y$r_buff1_thd0; [L725] 0 _Bool y$r_buff1_thd1; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0] [L726] 0 _Bool y$r_buff1_thd2; [L727] 0 _Bool y$read_delayed; [L728] 0 int *y$read_delayed_var; [L729] 0 int y$w_buff0; [L730] 0 _Bool y$w_buff0_used; [L731] 0 int y$w_buff1; [L732] 0 _Bool y$w_buff1_used; [L733] 0 _Bool weak$$choice0; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=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_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=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] [L734] 0 _Bool weak$$choice2; [L807] 0 pthread_t t2315; [L808] FCALL, FORK 0 pthread_create(&t2315, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L738] 1 y$w_buff1 = y$w_buff0 [L739] 1 y$w_buff0 = 1 [L740] 1 y$w_buff1_used = y$w_buff0_used [L741] 1 y$w_buff0_used = (_Bool)1 [L18] COND FALSE 1 !(!expression) [L743] 1 y$r_buff1_thd0 = y$r_buff0_thd0 [L744] 1 y$r_buff1_thd1 = y$r_buff0_thd1 [L745] 1 y$r_buff1_thd2 = y$r_buff0_thd2 [L746] 1 y$r_buff0_thd1 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L749] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L809] 0 pthread_t t2316; [L810] FCALL, FORK 0 pthread_create(&t2316, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L766] 2 __unbuffered_p1_EAX = x VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L769] 2 weak$$choice0 = __VERIFIER_nondet_bool() [L770] 2 weak$$choice2 = __VERIFIER_nondet_bool() [L771] 2 y$flush_delayed = weak$$choice2 [L772] 2 y$mem_tmp = y [L773] EXPR 2 !y$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) [L773] 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) [L774] EXPR 2 weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff0)) [L774] EXPR 2 !y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff0) [L774] EXPR 2 weak$$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$w_buff0)) [L774] 2 y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff0)) [L775] EXPR 2 weak$$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$w_buff1)) [L775] EXPR 2 !y$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) [L775] EXPR 2 weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff1 : y$w_buff1)) [L775] 2 y$w_buff1 = weak$$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)) [L776] EXPR 2 weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used)) [L776] EXPR 2 !y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used) [L776] EXPR 2 weak$$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)) [L776] 2 y$w_buff0_used = weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used)) [L777] EXPR 2 weak$$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$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L777] EXPR 2 !y$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) [L777] EXPR 2 weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L777] 2 y$w_buff1_used = weak$$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)) [L778] EXPR 2 weak$$choice2 ? y$r_buff0_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff0_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2)) [L778] EXPR 2 !y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff0_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2) [L778] EXPR 2 weak$$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)) [L778] 2 y$r_buff0_thd2 = weak$$choice2 ? y$r_buff0_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff0_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2)) [L779] EXPR 2 weak$$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$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L779] EXPR 2 !y$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) [L779] EXPR 2 weak$$choice2 ? y$r_buff1_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff1_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L779] 2 y$r_buff1_thd2 = weak$$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$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L780] 2 __unbuffered_p1_EBX = y [L781] EXPR 2 y$flush_delayed ? y$mem_tmp : y [L781] 2 y = y$flush_delayed ? y$mem_tmp : y [L782] 2 y$flush_delayed = (_Bool)0 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=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] [L752] EXPR 1 y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd1 ? y$w_buff1 : y) [L752] 1 y = y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd1 ? y$w_buff1 : y) [L753] EXPR 1 y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$w_buff0_used [L753] 1 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$w_buff0_used [L754] EXPR 1 y$w_buff0_used && y$r_buff0_thd1 || y$w_buff1_used && y$r_buff1_thd1 ? (_Bool)0 : y$w_buff1_used [L754] 1 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd1 || y$w_buff1_used && y$r_buff1_thd1 ? (_Bool)0 : y$w_buff1_used [L755] EXPR 1 y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$r_buff0_thd1 [L755] 1 y$r_buff0_thd1 = y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$r_buff0_thd1 [L756] EXPR 1 y$w_buff0_used && y$r_buff0_thd1 || y$w_buff1_used && y$r_buff1_thd1 ? (_Bool)0 : y$r_buff1_thd1 [L756] 1 y$r_buff1_thd1 = y$w_buff0_used && y$r_buff0_thd1 || y$w_buff1_used && y$r_buff1_thd1 ? (_Bool)0 : y$r_buff1_thd1 [L759] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L761] 1 return 0; [L785] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L785] EXPR 2 y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y [L785] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L785] 2 y = y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L786] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L786] 2 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L787] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L787] 2 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L788] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L788] 2 y$r_buff0_thd2 = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L789] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 [L789] 2 y$r_buff1_thd2 = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 [L792] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L794] 2 return 0; [L812] 0 main$tmp_guard0 = __unbuffered_cnt == 2 [L3] COND FALSE 0 !(!cond) [L816] 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) [L816] EXPR 0 y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y [L816] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L816] 0 y = y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L817] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L817] 0 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L818] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L818] 0 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L819] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L819] 0 y$r_buff0_thd0 = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L820] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 [L820] 0 y$r_buff1_thd0 = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 [L823] 0 main$tmp_guard1 = !(__unbuffered_p1_EAX == 1 && __unbuffered_p1_EBX == 0) [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\result={0:0}, __unbuffered_cnt=2, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=1, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=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] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 80 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 2.2ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 4027.5ms, OverallIterations: 8, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 484.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 2631.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 34 SDtfs, 33 SDslu, 49 SDs, 0 SdLazy, 109 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 122.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 40 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 166.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=101occurred in iteration=3, InterpolantAutomatonStates: 41, 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: 28.1ms SsaConstructionTime, 220.6ms SatisfiabilityAnalysisTime, 419.6ms InterpolantComputationTime, 142 NumberOfCodeBlocks, 142 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 112 ConstructedInterpolants, 0 QuantifiedInterpolants, 356 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...