/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/mix030_rmo.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-0e22065b97d0a1f8b3904e080cebe0f05e88d2b7-0e22065 [2021-06-10 20:52:13,892 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-10 20:52:13,895 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-10 20:52:13,922 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-10 20:52:13,922 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-10 20:52:13,923 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-10 20:52:13,924 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-10 20:52:13,926 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-10 20:52:13,927 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-10 20:52:13,928 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-10 20:52:13,929 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-10 20:52:13,929 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-10 20:52:13,930 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-10 20:52:13,931 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-10 20:52:13,931 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-10 20:52:13,932 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-10 20:52:13,933 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-10 20:52:13,934 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-10 20:52:13,935 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-10 20:52:13,937 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-10 20:52:13,938 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-10 20:52:13,939 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-10 20:52:13,940 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-10 20:52:13,941 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-10 20:52:13,943 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-06-10 20:52:13,944 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-06-10 20:52:13,944 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-06-10 20:52:13,945 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-06-10 20:52:13,945 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-06-10 20:52:13,946 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-06-10 20:52:13,946 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-10 20:52:13,947 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-10 20:52:13,947 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-10 20:52:13,948 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-10 20:52:13,949 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-10 20:52:13,949 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-10 20:52:13,949 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-10 20:52:13,950 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-10 20:52:13,950 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-10 20:52:13,951 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-10 20:52:13,951 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-10 20:52:13,954 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 [2021-06-10 20:52:13,982 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-10 20:52:13,983 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-10 20:52:13,986 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-10 20:52:13,986 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-10 20:52:13,986 INFO L138 SettingsManager]: * Use SBE=true [2021-06-10 20:52:13,986 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-10 20:52:13,986 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-10 20:52:13,986 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-10 20:52:13,987 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-10 20:52:13,987 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-10 20:52:13,987 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-10 20:52:13,987 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-10 20:52:13,988 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-10 20:52:13,988 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-10 20:52:13,988 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-10 20:52:13,988 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-10 20:52:13,988 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-10 20:52:13,988 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-10 20:52:13,988 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-10 20:52:13,988 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-10 20:52:13,989 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-10 20:52:13,989 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-10 20:52:13,989 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-10 20:52:13,989 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-10 20:52:13,989 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-10 20:52:13,989 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-10 20:52:13,989 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-10 20:52:13,989 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-06-10 20:52:13,990 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-10 20:52:14,274 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-10 20:52:14,304 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-10 20:52:14,307 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-10 20:52:14,308 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-10 20:52:14,309 INFO L275 PluginConnector]: CDTParser initialized [2021-06-10 20:52:14,310 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix030_rmo.opt.i [2021-06-10 20:52:14,368 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/18d6fa6d6/103adf7ead394707ab0c5ab206f27a12/FLAGa476fcf59 [2021-06-10 20:52:15,122 INFO L306 CDTParser]: Found 1 translation units. [2021-06-10 20:52:15,122 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix030_rmo.opt.i [2021-06-10 20:52:15,134 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/18d6fa6d6/103adf7ead394707ab0c5ab206f27a12/FLAGa476fcf59 [2021-06-10 20:52:15,382 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/18d6fa6d6/103adf7ead394707ab0c5ab206f27a12 [2021-06-10 20:52:15,384 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-10 20:52:15,385 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-10 20:52:15,391 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-10 20:52:15,391 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-10 20:52:15,394 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-10 20:52:15,395 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.06 08:52:15" (1/1) ... [2021-06-10 20:52:15,396 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14affb12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 08:52:15, skipping insertion in model container [2021-06-10 20:52:15,396 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.06 08:52:15" (1/1) ... [2021-06-10 20:52:15,402 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-10 20:52:15,448 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-10 20:52:15,567 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/mix030_rmo.opt.i[948,961] [2021-06-10 20:52:15,792 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-10 20:52:15,805 INFO L203 MainTranslator]: Completed pre-run [2021-06-10 20:52:15,818 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/mix030_rmo.opt.i[948,961] [2021-06-10 20:52:15,866 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-10 20:52:15,920 INFO L208 MainTranslator]: Completed translation [2021-06-10 20:52:15,920 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 08:52:15 WrapperNode [2021-06-10 20:52:15,920 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-10 20:52:15,921 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-10 20:52:15,921 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-10 20:52:15,921 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-10 20:52:15,927 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 08:52:15" (1/1) ... [2021-06-10 20:52:15,941 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 08:52:15" (1/1) ... [2021-06-10 20:52:15,984 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-10 20:52:15,984 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-10 20:52:15,985 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-10 20:52:15,985 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-10 20:52:15,996 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 08:52:15" (1/1) ... [2021-06-10 20:52:15,996 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 08:52:15" (1/1) ... [2021-06-10 20:52:16,013 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 08:52:15" (1/1) ... [2021-06-10 20:52:16,013 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 08:52:15" (1/1) ... [2021-06-10 20:52:16,021 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 08:52:15" (1/1) ... [2021-06-10 20:52:16,037 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 08:52:15" (1/1) ... [2021-06-10 20:52:16,039 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 08:52:15" (1/1) ... [2021-06-10 20:52:16,042 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-10 20:52:16,043 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-10 20:52:16,043 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-10 20:52:16,043 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-10 20:52:16,044 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 08:52:15" (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 [2021-06-10 20:52:16,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-10 20:52:16,117 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-10 20:52:16,117 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-10 20:52:16,118 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-10 20:52:16,118 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-06-10 20:52:16,118 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-06-10 20:52:16,119 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-06-10 20:52:16,119 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-06-10 20:52:16,121 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-06-10 20:52:16,121 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-06-10 20:52:16,121 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-06-10 20:52:16,121 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-06-10 20:52:16,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-10 20:52:16,122 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-10 20:52:16,122 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-10 20:52:16,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-10 20:52:16,123 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-10 20:52:17,706 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-10 20:52:17,706 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-06-10 20:52:17,708 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.06 08:52:17 BoogieIcfgContainer [2021-06-10 20:52:17,708 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-10 20:52:17,710 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-10 20:52:17,710 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-10 20:52:17,712 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-10 20:52:17,712 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.06 08:52:15" (1/3) ... [2021-06-10 20:52:17,713 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fcec8be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.06 08:52:17, skipping insertion in model container [2021-06-10 20:52:17,713 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 08:52:15" (2/3) ... [2021-06-10 20:52:17,713 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fcec8be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.06 08:52:17, skipping insertion in model container [2021-06-10 20:52:17,713 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.06 08:52:17" (3/3) ... [2021-06-10 20:52:17,714 INFO L111 eAbstractionObserver]: Analyzing ICFG mix030_rmo.opt.i [2021-06-10 20:52:17,720 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-10 20:52:17,724 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-06-10 20:52:17,725 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-10 20:52:17,763 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,763 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,763 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,763 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,763 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,763 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,764 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,764 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,764 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,764 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,764 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,764 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,765 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,765 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,765 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,765 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,765 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,765 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,765 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,765 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,766 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,766 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,766 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,766 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,766 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,766 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,766 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,767 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,767 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,767 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,767 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,767 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,767 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,767 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,768 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,768 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,768 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,768 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,768 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,769 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,769 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,769 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,769 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,769 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,769 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,769 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,769 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,769 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,770 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,770 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,770 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,770 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,770 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,770 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,770 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,771 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,771 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,771 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,771 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,771 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,771 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,771 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,772 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,772 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,772 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,772 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,772 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,772 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,773 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,773 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,773 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,773 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,773 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,773 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,773 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,773 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,774 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,774 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,774 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,774 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,774 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,774 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,774 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,775 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,775 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,775 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,775 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,775 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,775 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,775 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,776 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,776 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,776 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,776 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,776 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,776 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,777 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,777 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,778 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,779 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,779 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,779 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,779 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,779 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,779 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,779 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,780 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,780 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,780 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,780 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,781 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,782 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,782 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,782 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,782 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,782 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,782 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,782 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,783 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,783 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,784 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,784 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,784 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,784 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,785 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,785 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,785 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,785 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,786 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,786 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,786 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,786 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,786 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,786 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 20:52:17,787 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-10 20:52:17,803 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-06-10 20:52:17,820 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-06-10 20:52:17,820 INFO L377 AbstractCegarLoop]: Hoare is false [2021-06-10 20:52:17,820 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-10 20:52:17,820 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-10 20:52:17,820 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-10 20:52:17,820 INFO L381 AbstractCegarLoop]: Difference is false [2021-06-10 20:52:17,820 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-10 20:52:17,820 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-10 20:52:17,836 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 126 places, 115 transitions, 250 flow [2021-06-10 20:52:17,870 INFO L129 PetriNetUnfolder]: 2/111 cut-off events. [2021-06-10 20:52:17,870 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-10 20:52:17,874 INFO L84 FinitePrefix]: Finished finitePrefix Result has 124 conditions, 111 events. 2/111 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 84 event pairs, 0 based on Foata normal form. 0/107 useless extension candidates. Maximal degree in co-relation 76. Up to 2 conditions per place. [2021-06-10 20:52:17,874 INFO L82 GeneralOperation]: Start removeDead. Operand has 126 places, 115 transitions, 250 flow [2021-06-10 20:52:17,878 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 122 places, 111 transitions, 234 flow [2021-06-10 20:52:17,880 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-10 20:52:17,890 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 122 places, 111 transitions, 234 flow [2021-06-10 20:52:17,896 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 122 places, 111 transitions, 234 flow [2021-06-10 20:52:17,900 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 122 places, 111 transitions, 234 flow [2021-06-10 20:52:17,919 INFO L129 PetriNetUnfolder]: 2/111 cut-off events. [2021-06-10 20:52:17,919 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-10 20:52:17,920 INFO L84 FinitePrefix]: Finished finitePrefix Result has 124 conditions, 111 events. 2/111 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 83 event pairs, 0 based on Foata normal form. 0/107 useless extension candidates. Maximal degree in co-relation 76. Up to 2 conditions per place. [2021-06-10 20:52:17,923 INFO L151 LiptonReduction]: Number of co-enabled transitions 2630 [2021-06-10 20:52:18,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:18,191 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 20:52:18,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:18,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 20:52:18,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-10 20:52:18,219 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:18,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 20:52:18,243 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:18,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 20:52:18,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:18,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 20:52:18,324 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:18,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 20:52:18,405 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:18,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 20:52:18,423 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:18,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 20:52:18,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:18,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 20:52:18,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:18,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 20:52:18,519 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:18,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 20:52:18,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:18,608 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 20:52:18,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:18,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 20:52:18,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-10 20:52:18,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:18,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 20:52:18,652 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:18,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 20:52:18,671 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:18,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 20:52:18,686 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:18,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 20:52:18,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:18,891 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2021-06-10 20:52:18,892 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-10 20:52:18,917 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:18,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 20:52:19,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:19,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 20:52:19,054 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:19,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 20:52:19,068 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:19,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 20:52:19,086 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:19,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 20:52:19,134 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:19,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 20:52:19,211 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:19,214 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 20:52:19,217 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:19,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 20:52:19,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-10 20:52:19,364 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:19,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 20:52:19,402 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:19,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 20:52:19,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:19,505 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 20:52:19,506 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:19,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 20:52:19,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-10 20:52:19,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:19,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 20:52:19,674 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:19,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 20:52:19,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:19,728 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 20:52:19,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:19,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 20:52:19,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-10 20:52:19,740 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:19,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 20:52:19,757 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:19,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 20:52:19,818 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-06-10 20:52:19,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 20:52:19,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:19,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 20:52:19,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:19,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 20:52:20,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:20,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 20:52:20,054 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:20,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 20:52:20,079 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:20,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 20:52:20,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:20,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 20:52:20,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:20,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 20:52:20,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:20,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 20:52:20,218 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:20,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 20:52:20,248 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:20,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 20:52:20,315 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:20,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 20:52:20,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:20,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 20:52:20,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:20,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 20:52:20,394 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:20,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 20:52:20,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:20,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 20:52:20,717 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 60 [2021-06-10 20:52:21,166 WARN L205 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 90 [2021-06-10 20:52:21,330 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2021-06-10 20:52:21,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:21,350 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 20:52:21,351 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:21,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-06-10 20:52:21,354 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 20:52:21,355 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:21,356 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 3, 2, 2, 1] term [2021-06-10 20:52:21,356 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-10 20:52:21,359 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:21,361 INFO L147 QuantifierPusher]: treesize reduction 39, result has 69.0 percent of original size 87 [2021-06-10 20:52:21,361 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 20:52:21,363 INFO L142 QuantifierPusher]: treesize reduction 39, result has 75.6 percent of original size [2021-06-10 20:52:21,364 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 3, 4, 2, 1] term [2021-06-10 20:52:21,364 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-10 20:52:21,365 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:21,367 INFO L147 QuantifierPusher]: treesize reduction 100, result has 38.7 percent of original size 63 [2021-06-10 20:52:21,368 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 3, 3, 4, 2, 1] term [2021-06-10 20:52:21,368 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-10 20:52:21,370 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:21,372 INFO L147 QuantifierPusher]: treesize reduction 176, result has 33.3 percent of original size 88 [2021-06-10 20:52:21,508 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:21,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 20:52:21,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:21,727 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 20:52:21,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:21,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 20:52:21,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-10 20:52:21,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:21,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 20:52:21,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:21,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 20:52:21,822 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:21,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 20:52:21,865 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:21,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 20:52:21,999 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:22,001 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 20:52:22,004 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:22,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 20:52:22,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-10 20:52:22,046 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:22,067 INFO L147 QuantifierPusher]: treesize reduction 80, result has 25.2 percent of original size 27 [2021-06-10 20:52:22,154 INFO L142 QuantifierPusher]: treesize reduction 84, result has 91.3 percent of original size [2021-06-10 20:52:22,169 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 20:52:22,171 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:22,174 INFO L147 QuantifierPusher]: treesize reduction 13, result has 82.4 percent of original size 61 [2021-06-10 20:52:22,177 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 20:52:22,179 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:22,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 103 [2021-06-10 20:52:22,184 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 20:52:22,185 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:22,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 103 [2021-06-10 20:52:22,191 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 20:52:22,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:22,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 103 [2021-06-10 20:52:22,196 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 20:52:22,198 INFO L142 QuantifierPusher]: treesize reduction 13, result has 92.7 percent of original size [2021-06-10 20:52:22,199 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 5, 2, 2, 4, 3, 2, 1] term [2021-06-10 20:52:22,199 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-10 20:52:22,201 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:22,203 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 5, 4, 3, 2, 1] term [2021-06-10 20:52:22,203 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-10 20:52:22,207 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:22,208 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 5, 2, 2, 1] term [2021-06-10 20:52:22,208 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-10 20:52:22,210 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:22,212 INFO L147 QuantifierPusher]: treesize reduction 148, result has 52.1 percent of original size 161 [2021-06-10 20:52:22,213 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 20:52:22,217 INFO L142 QuantifierPusher]: treesize reduction 148, result has 64.3 percent of original size [2021-06-10 20:52:22,218 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 2, 4, 4, 2, 2, 1] term [2021-06-10 20:52:22,219 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-10 20:52:22,221 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:22,222 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 3, 4, 4, 2, 2, 1] term [2021-06-10 20:52:22,222 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-10 20:52:22,226 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:22,233 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 2, 4, 4, 2, 2, 1] term [2021-06-10 20:52:22,233 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-10 20:52:22,237 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:22,242 INFO L147 QuantifierPusher]: treesize reduction 459, result has 26.3 percent of original size 164 [2021-06-10 20:52:22,243 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 3, 4, 3, 4, 4, 4, 4, 3, 4, 2, 2, 1] term [2021-06-10 20:52:22,243 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-10 20:52:22,245 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:22,246 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 3, 4, 3, 4, 4, 4, 4, 3, 4, 2, 2, 1] term [2021-06-10 20:52:22,249 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-10 20:52:22,251 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:22,251 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 3, 4, 3, 4, 4, 4, 4, 3, 4, 2, 2, 1] term [2021-06-10 20:52:22,252 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-06-10 20:52:22,254 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:22,257 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 20:52:22,259 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:22,260 INFO L147 QuantifierPusher]: treesize reduction 36, result has 2.7 percent of original size 1 [2021-06-10 20:52:22,261 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 20:52:22,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:22,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 20:52:22,263 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 20:52:22,265 INFO L142 QuantifierPusher]: treesize reduction 38, result has 71.0 percent of original size [2021-06-10 20:52:22,268 INFO L147 QuantifierPusher]: treesize reduction 6, result has 90.2 percent of original size 55 [2021-06-10 20:52:22,282 INFO L147 QuantifierPusher]: treesize reduction 1935, result has 7.6 percent of original size 160 [2021-06-10 20:52:22,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:22,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 20:52:22,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:22,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 20:52:22,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:22,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 20:52:22,659 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:22,662 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 20:52:22,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:22,663 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 20:52:22,664 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:22,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-10 20:52:22,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 20:52:22,665 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 20:52:22,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:22,666 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 20:52:22,669 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:22,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-10 20:52:22,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-06-10 20:52:22,670 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 20:52:22,671 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:22,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-06-10 20:52:22,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-06-10 20:52:22,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:22,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 20:52:22,904 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:22,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 20:52:23,050 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:23,052 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 20:52:23,059 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:23,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 20:52:23,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-10 20:52:23,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:23,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 20:52:23,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:23,490 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 20:52:23,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:23,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 20:52:23,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-10 20:52:23,871 WARN L205 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 120 [2021-06-10 20:52:24,021 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2021-06-10 20:52:24,381 WARN L205 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 120 [2021-06-10 20:52:24,526 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2021-06-10 20:52:24,541 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:24,555 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 20:52:24,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:24,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 20:52:24,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-10 20:52:24,578 INFO L163 LiptonReduction]: Checked pairs total: 8174 [2021-06-10 20:52:24,578 INFO L165 LiptonReduction]: Total number of compositions: 98 [2021-06-10 20:52:24,581 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 6702 [2021-06-10 20:52:24,587 INFO L129 PetriNetUnfolder]: 0/12 cut-off events. [2021-06-10 20:52:24,588 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-10 20:52:24,588 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 20:52:24,588 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-06-10 20:52:24,589 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 20:52:24,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 20:52:24,593 INFO L82 PathProgramCache]: Analyzing trace with hash -1689780489, now seen corresponding path program 1 times [2021-06-10 20:52:24,600 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 20:52:24,600 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704432013] [2021-06-10 20:52:24,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 20:52:24,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 20:52:24,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:24,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 20:52:24,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 20:52:24,752 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704432013] [2021-06-10 20:52:24,752 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 20:52:24,752 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-06-10 20:52:24,753 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811973095] [2021-06-10 20:52:24,759 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-10 20:52:24,759 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 20:52:24,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-10 20:52:24,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-10 20:52:24,773 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 178 out of 213 [2021-06-10 20:52:24,778 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 34 transitions, 80 flow. Second operand has 3 states, 3 states have (on average 178.66666666666666) internal successors, (536), 3 states have internal predecessors, (536), 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) [2021-06-10 20:52:24,778 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 20:52:24,778 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 178 of 213 [2021-06-10 20:52:24,779 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 20:52:24,879 INFO L129 PetriNetUnfolder]: 49/140 cut-off events. [2021-06-10 20:52:24,880 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-10 20:52:24,882 INFO L84 FinitePrefix]: Finished finitePrefix Result has 239 conditions, 140 events. 49/140 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 598 event pairs, 27 based on Foata normal form. 23/141 useless extension candidates. Maximal degree in co-relation 228. Up to 65 conditions per place. [2021-06-10 20:52:24,884 INFO L132 encePairwiseOnDemand]: 208/213 looper letters, 9 selfloop transitions, 2 changer transitions 0/35 dead transitions. [2021-06-10 20:52:24,884 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 35 transitions, 104 flow [2021-06-10 20:52:24,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-10 20:52:24,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-06-10 20:52:24,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 550 transitions. [2021-06-10 20:52:24,902 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8607198748043818 [2021-06-10 20:52:24,902 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 550 transitions. [2021-06-10 20:52:24,902 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 550 transitions. [2021-06-10 20:52:24,906 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 20:52:24,907 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 550 transitions. [2021-06-10 20:52:24,912 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 183.33333333333334) internal successors, (550), 3 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) [2021-06-10 20:52:24,922 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 213.0) internal successors, (852), 4 states have internal predecessors, (852), 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) [2021-06-10 20:52:24,923 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 213.0) internal successors, (852), 4 states have internal predecessors, (852), 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) [2021-06-10 20:52:24,924 INFO L185 Difference]: Start difference. First operand has 46 places, 34 transitions, 80 flow. Second operand 3 states and 550 transitions. [2021-06-10 20:52:24,925 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 35 transitions, 104 flow [2021-06-10 20:52:24,927 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 35 transitions, 100 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-06-10 20:52:24,928 INFO L241 Difference]: Finished difference. Result has 42 places, 31 transitions, 74 flow [2021-06-10 20:52:24,930 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=213, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=74, PETRI_PLACES=42, PETRI_TRANSITIONS=31} [2021-06-10 20:52:24,930 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, -4 predicate places. [2021-06-10 20:52:24,930 INFO L480 AbstractCegarLoop]: Abstraction has has 42 places, 31 transitions, 74 flow [2021-06-10 20:52:24,931 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 178.66666666666666) internal successors, (536), 3 states have internal predecessors, (536), 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) [2021-06-10 20:52:24,931 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 20:52:24,931 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 20:52:24,931 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-06-10 20:52:24,931 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 20:52:24,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 20:52:24,933 INFO L82 PathProgramCache]: Analyzing trace with hash -272401250, now seen corresponding path program 1 times [2021-06-10 20:52:24,933 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 20:52:24,933 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502452524] [2021-06-10 20:52:24,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 20:52:25,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 20:52:25,083 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:25,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 20:52:25,088 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-10 20:52:25,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-10 20:52:25,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 20:52:25,103 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502452524] [2021-06-10 20:52:25,103 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 20:52:25,104 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-10 20:52:25,104 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643412268] [2021-06-10 20:52:25,105 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-10 20:52:25,105 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 20:52:25,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-10 20:52:25,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-10 20:52:25,107 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 175 out of 213 [2021-06-10 20:52:25,107 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 31 transitions, 74 flow. Second operand has 4 states, 4 states have (on average 175.75) internal successors, (703), 4 states have internal predecessors, (703), 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) [2021-06-10 20:52:25,108 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 20:52:25,108 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 175 of 213 [2021-06-10 20:52:25,108 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 20:52:25,148 INFO L129 PetriNetUnfolder]: 1/42 cut-off events. [2021-06-10 20:52:25,148 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-10 20:52:25,148 INFO L84 FinitePrefix]: Finished finitePrefix Result has 65 conditions, 42 events. 1/42 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 76 event pairs, 0 based on Foata normal form. 0/39 useless extension candidates. Maximal degree in co-relation 56. Up to 5 conditions per place. [2021-06-10 20:52:25,149 INFO L132 encePairwiseOnDemand]: 209/213 looper letters, 2 selfloop transitions, 2 changer transitions 7/35 dead transitions. [2021-06-10 20:52:25,149 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 35 transitions, 100 flow [2021-06-10 20:52:25,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-10 20:52:25,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-10 20:52:25,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 886 transitions. [2021-06-10 20:52:25,151 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.831924882629108 [2021-06-10 20:52:25,151 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 886 transitions. [2021-06-10 20:52:25,151 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 886 transitions. [2021-06-10 20:52:25,152 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 20:52:25,152 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 886 transitions. [2021-06-10 20:52:25,154 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 177.2) internal successors, (886), 5 states have internal predecessors, (886), 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) [2021-06-10 20:52:25,156 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 213.0) internal successors, (1278), 6 states have internal predecessors, (1278), 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) [2021-06-10 20:52:25,156 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 213.0) internal successors, (1278), 6 states have internal predecessors, (1278), 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) [2021-06-10 20:52:25,157 INFO L185 Difference]: Start difference. First operand has 42 places, 31 transitions, 74 flow. Second operand 5 states and 886 transitions. [2021-06-10 20:52:25,157 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 35 transitions, 100 flow [2021-06-10 20:52:25,157 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 35 transitions, 96 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-06-10 20:52:25,158 INFO L241 Difference]: Finished difference. Result has 47 places, 28 transitions, 76 flow [2021-06-10 20:52:25,158 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=213, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=76, PETRI_PLACES=47, PETRI_TRANSITIONS=28} [2021-06-10 20:52:25,158 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 1 predicate places. [2021-06-10 20:52:25,159 INFO L480 AbstractCegarLoop]: Abstraction has has 47 places, 28 transitions, 76 flow [2021-06-10 20:52:25,159 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 175.75) internal successors, (703), 4 states have internal predecessors, (703), 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) [2021-06-10 20:52:25,159 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 20:52:25,159 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 20:52:25,159 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-06-10 20:52:25,159 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 20:52:25,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 20:52:25,160 INFO L82 PathProgramCache]: Analyzing trace with hash 219075992, now seen corresponding path program 1 times [2021-06-10 20:52:25,160 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 20:52:25,160 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117804692] [2021-06-10 20:52:25,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 20:52:25,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 20:52:25,208 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:25,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 20:52:25,213 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-10 20:52:25,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-10 20:52:25,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 20:52:25,228 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117804692] [2021-06-10 20:52:25,228 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 20:52:25,228 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-10 20:52:25,228 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312782486] [2021-06-10 20:52:25,229 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-10 20:52:25,229 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 20:52:25,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-10 20:52:25,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-10 20:52:25,231 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 175 out of 213 [2021-06-10 20:52:25,232 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 28 transitions, 76 flow. Second operand has 4 states, 4 states have (on average 175.75) internal successors, (703), 4 states have internal predecessors, (703), 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) [2021-06-10 20:52:25,232 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 20:52:25,232 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 175 of 213 [2021-06-10 20:52:25,232 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 20:52:25,268 INFO L129 PetriNetUnfolder]: 6/54 cut-off events. [2021-06-10 20:52:25,268 INFO L130 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2021-06-10 20:52:25,269 INFO L84 FinitePrefix]: Finished finitePrefix Result has 101 conditions, 54 events. 6/54 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 139 event pairs, 2 based on Foata normal form. 4/56 useless extension candidates. Maximal degree in co-relation 89. Up to 15 conditions per place. [2021-06-10 20:52:25,269 INFO L132 encePairwiseOnDemand]: 208/213 looper letters, 4 selfloop transitions, 3 changer transitions 5/35 dead transitions. [2021-06-10 20:52:25,269 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 35 transitions, 116 flow [2021-06-10 20:52:25,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-10 20:52:25,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-10 20:52:25,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 889 transitions. [2021-06-10 20:52:25,272 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8347417840375587 [2021-06-10 20:52:25,272 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 889 transitions. [2021-06-10 20:52:25,272 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 889 transitions. [2021-06-10 20:52:25,272 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 20:52:25,273 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 889 transitions. [2021-06-10 20:52:25,274 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 177.8) internal successors, (889), 5 states have internal predecessors, (889), 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) [2021-06-10 20:52:25,276 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 213.0) internal successors, (1278), 6 states have internal predecessors, (1278), 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) [2021-06-10 20:52:25,277 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 213.0) internal successors, (1278), 6 states have internal predecessors, (1278), 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) [2021-06-10 20:52:25,277 INFO L185 Difference]: Start difference. First operand has 47 places, 28 transitions, 76 flow. Second operand 5 states and 889 transitions. [2021-06-10 20:52:25,277 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 35 transitions, 116 flow [2021-06-10 20:52:25,278 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 35 transitions, 108 flow, removed 2 selfloop flow, removed 4 redundant places. [2021-06-10 20:52:25,279 INFO L241 Difference]: Finished difference. Result has 45 places, 30 transitions, 95 flow [2021-06-10 20:52:25,279 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=213, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=95, PETRI_PLACES=45, PETRI_TRANSITIONS=30} [2021-06-10 20:52:25,279 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, -1 predicate places. [2021-06-10 20:52:25,279 INFO L480 AbstractCegarLoop]: Abstraction has has 45 places, 30 transitions, 95 flow [2021-06-10 20:52:25,280 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 175.75) internal successors, (703), 4 states have internal predecessors, (703), 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) [2021-06-10 20:52:25,280 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 20:52:25,280 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 20:52:25,280 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-06-10 20:52:25,280 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 20:52:25,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 20:52:25,280 INFO L82 PathProgramCache]: Analyzing trace with hash 875009349, now seen corresponding path program 1 times [2021-06-10 20:52:25,281 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 20:52:25,282 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53264490] [2021-06-10 20:52:25,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 20:52:25,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 20:52:25,413 INFO L142 QuantifierPusher]: treesize reduction 14, result has 41.7 percent of original size [2021-06-10 20:52:25,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-10 20:52:25,421 INFO L142 QuantifierPusher]: treesize reduction 38, result has 24.0 percent of original size [2021-06-10 20:52:25,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-10 20:52:25,429 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-10 20:52:25,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-10 20:52:25,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 20:52:25,443 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53264490] [2021-06-10 20:52:25,444 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 20:52:25,444 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-10 20:52:25,444 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596500549] [2021-06-10 20:52:25,444 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-10 20:52:25,444 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 20:52:25,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-10 20:52:25,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-06-10 20:52:25,446 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 160 out of 213 [2021-06-10 20:52:25,447 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 30 transitions, 95 flow. Second operand has 5 states, 5 states have (on average 160.8) internal successors, (804), 5 states have internal predecessors, (804), 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) [2021-06-10 20:52:25,447 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 20:52:25,447 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 160 of 213 [2021-06-10 20:52:25,447 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 20:52:25,666 INFO L129 PetriNetUnfolder]: 256/499 cut-off events. [2021-06-10 20:52:25,666 INFO L130 PetriNetUnfolder]: For 303/330 co-relation queries the response was YES. [2021-06-10 20:52:25,669 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1113 conditions, 499 events. 256/499 cut-off events. For 303/330 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 2737 event pairs, 46 based on Foata normal form. 40/501 useless extension candidates. Maximal degree in co-relation 1100. Up to 253 conditions per place. [2021-06-10 20:52:25,672 INFO L132 encePairwiseOnDemand]: 206/213 looper letters, 11 selfloop transitions, 6 changer transitions 9/47 dead transitions. [2021-06-10 20:52:25,672 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 47 transitions, 185 flow [2021-06-10 20:52:25,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-10 20:52:25,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-06-10 20:52:25,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 988 transitions. [2021-06-10 20:52:25,675 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7730829420970265 [2021-06-10 20:52:25,675 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 988 transitions. [2021-06-10 20:52:25,675 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 988 transitions. [2021-06-10 20:52:25,676 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 20:52:25,676 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 988 transitions. [2021-06-10 20:52:25,678 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 164.66666666666666) internal successors, (988), 6 states have internal predecessors, (988), 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) [2021-06-10 20:52:25,680 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 213.0) internal successors, (1491), 7 states have internal predecessors, (1491), 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) [2021-06-10 20:52:25,681 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 213.0) internal successors, (1491), 7 states have internal predecessors, (1491), 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) [2021-06-10 20:52:25,681 INFO L185 Difference]: Start difference. First operand has 45 places, 30 transitions, 95 flow. Second operand 6 states and 988 transitions. [2021-06-10 20:52:25,681 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 47 transitions, 185 flow [2021-06-10 20:52:25,682 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 47 transitions, 180 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-06-10 20:52:25,683 INFO L241 Difference]: Finished difference. Result has 50 places, 34 transitions, 131 flow [2021-06-10 20:52:25,683 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=213, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=131, PETRI_PLACES=50, PETRI_TRANSITIONS=34} [2021-06-10 20:52:25,684 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 4 predicate places. [2021-06-10 20:52:25,684 INFO L480 AbstractCegarLoop]: Abstraction has has 50 places, 34 transitions, 131 flow [2021-06-10 20:52:25,684 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 160.8) internal successors, (804), 5 states have internal predecessors, (804), 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) [2021-06-10 20:52:25,684 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 20:52:25,685 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 20:52:25,685 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-06-10 20:52:25,685 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 20:52:25,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 20:52:25,685 INFO L82 PathProgramCache]: Analyzing trace with hash 33356381, now seen corresponding path program 1 times [2021-06-10 20:52:25,685 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 20:52:25,685 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677730935] [2021-06-10 20:52:25,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 20:52:25,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 20:52:25,747 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.7 percent of original size [2021-06-10 20:52:25,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-06-10 20:52:25,773 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.3 percent of original size [2021-06-10 20:52:25,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-06-10 20:52:25,797 INFO L142 QuantifierPusher]: treesize reduction 11, result has 86.4 percent of original size [2021-06-10 20:52:25,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-06-10 20:52:25,825 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-10 20:52:25,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-10 20:52:25,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 20:52:25,842 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677730935] [2021-06-10 20:52:25,842 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 20:52:25,842 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-10 20:52:25,842 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131562505] [2021-06-10 20:52:25,842 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-10 20:52:25,843 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 20:52:25,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-10 20:52:25,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-06-10 20:52:25,845 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 213 [2021-06-10 20:52:25,846 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 34 transitions, 131 flow. Second operand has 6 states, 6 states have (on average 151.83333333333334) internal successors, (911), 6 states have internal predecessors, (911), 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) [2021-06-10 20:52:25,846 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 20:52:25,846 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 213 [2021-06-10 20:52:25,846 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 20:52:26,039 INFO L129 PetriNetUnfolder]: 219/435 cut-off events. [2021-06-10 20:52:26,039 INFO L130 PetriNetUnfolder]: For 556/687 co-relation queries the response was YES. [2021-06-10 20:52:26,042 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1208 conditions, 435 events. 219/435 cut-off events. For 556/687 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 2269 event pairs, 130 based on Foata normal form. 38/436 useless extension candidates. Maximal degree in co-relation 1191. Up to 266 conditions per place. [2021-06-10 20:52:26,044 INFO L132 encePairwiseOnDemand]: 206/213 looper letters, 13 selfloop transitions, 8 changer transitions 8/50 dead transitions. [2021-06-10 20:52:26,044 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 50 transitions, 250 flow [2021-06-10 20:52:26,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-10 20:52:26,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-06-10 20:52:26,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 933 transitions. [2021-06-10 20:52:26,048 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7300469483568075 [2021-06-10 20:52:26,048 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 933 transitions. [2021-06-10 20:52:26,048 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 933 transitions. [2021-06-10 20:52:26,048 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 20:52:26,048 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 933 transitions. [2021-06-10 20:52:26,050 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 155.5) internal successors, (933), 6 states have internal predecessors, (933), 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) [2021-06-10 20:52:26,053 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 213.0) internal successors, (1491), 7 states have internal predecessors, (1491), 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) [2021-06-10 20:52:26,053 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 213.0) internal successors, (1491), 7 states have internal predecessors, (1491), 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) [2021-06-10 20:52:26,053 INFO L185 Difference]: Start difference. First operand has 50 places, 34 transitions, 131 flow. Second operand 6 states and 933 transitions. [2021-06-10 20:52:26,053 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 50 transitions, 250 flow [2021-06-10 20:52:26,055 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 50 transitions, 242 flow, removed 2 selfloop flow, removed 3 redundant places. [2021-06-10 20:52:26,056 INFO L241 Difference]: Finished difference. Result has 54 places, 39 transitions, 186 flow [2021-06-10 20:52:26,056 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=213, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=186, PETRI_PLACES=54, PETRI_TRANSITIONS=39} [2021-06-10 20:52:26,057 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 8 predicate places. [2021-06-10 20:52:26,057 INFO L480 AbstractCegarLoop]: Abstraction has has 54 places, 39 transitions, 186 flow [2021-06-10 20:52:26,057 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 151.83333333333334) internal successors, (911), 6 states have internal predecessors, (911), 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) [2021-06-10 20:52:26,057 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 20:52:26,057 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 20:52:26,058 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-06-10 20:52:26,058 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 20:52:26,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 20:52:26,058 INFO L82 PathProgramCache]: Analyzing trace with hash 1837747669, now seen corresponding path program 1 times [2021-06-10 20:52:26,058 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 20:52:26,058 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777436375] [2021-06-10 20:52:26,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 20:52:26,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 20:52:26,121 INFO L142 QuantifierPusher]: treesize reduction 31, result has 55.7 percent of original size [2021-06-10 20:52:26,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-06-10 20:52:26,145 INFO L142 QuantifierPusher]: treesize reduction 31, result has 57.5 percent of original size [2021-06-10 20:52:26,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-06-10 20:52:26,176 INFO L142 QuantifierPusher]: treesize reduction 11, result has 69.4 percent of original size [2021-06-10 20:52:26,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-06-10 20:52:26,199 INFO L142 QuantifierPusher]: treesize reduction 20, result has 56.5 percent of original size [2021-06-10 20:52:26,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-06-10 20:52:26,218 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-10 20:52:26,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-10 20:52:26,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 20:52:26,235 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777436375] [2021-06-10 20:52:26,235 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 20:52:26,236 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-10 20:52:26,236 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421072042] [2021-06-10 20:52:26,236 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-10 20:52:26,237 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 20:52:26,237 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-10 20:52:26,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-06-10 20:52:26,240 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 213 [2021-06-10 20:52:26,241 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 39 transitions, 186 flow. Second operand has 7 states, 7 states have (on average 155.85714285714286) internal successors, (1091), 7 states have internal predecessors, (1091), 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) [2021-06-10 20:52:26,241 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 20:52:26,241 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 213 [2021-06-10 20:52:26,241 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 20:52:26,416 INFO L129 PetriNetUnfolder]: 228/438 cut-off events. [2021-06-10 20:52:26,416 INFO L130 PetriNetUnfolder]: For 857/1142 co-relation queries the response was YES. [2021-06-10 20:52:26,418 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1549 conditions, 438 events. 228/438 cut-off events. For 857/1142 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 2163 event pairs, 62 based on Foata normal form. 33/440 useless extension candidates. Maximal degree in co-relation 1529. Up to 260 conditions per place. [2021-06-10 20:52:26,421 INFO L132 encePairwiseOnDemand]: 204/213 looper letters, 16 selfloop transitions, 13 changer transitions 4/54 dead transitions. [2021-06-10 20:52:26,421 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 54 transitions, 332 flow [2021-06-10 20:52:26,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-10 20:52:26,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-06-10 20:52:26,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 956 transitions. [2021-06-10 20:52:26,424 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7480438184663537 [2021-06-10 20:52:26,424 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 956 transitions. [2021-06-10 20:52:26,424 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 956 transitions. [2021-06-10 20:52:26,425 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 20:52:26,425 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 956 transitions. [2021-06-10 20:52:26,427 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 159.33333333333334) internal successors, (956), 6 states have internal predecessors, (956), 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) [2021-06-10 20:52:26,429 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 213.0) internal successors, (1491), 7 states have internal predecessors, (1491), 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) [2021-06-10 20:52:26,429 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 213.0) internal successors, (1491), 7 states have internal predecessors, (1491), 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) [2021-06-10 20:52:26,429 INFO L185 Difference]: Start difference. First operand has 54 places, 39 transitions, 186 flow. Second operand 6 states and 956 transitions. [2021-06-10 20:52:26,429 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 54 transitions, 332 flow [2021-06-10 20:52:26,432 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 54 transitions, 330 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-06-10 20:52:26,433 INFO L241 Difference]: Finished difference. Result has 59 places, 46 transitions, 272 flow [2021-06-10 20:52:26,433 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=213, PETRI_DIFFERENCE_MINUEND_FLOW=184, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=272, PETRI_PLACES=59, PETRI_TRANSITIONS=46} [2021-06-10 20:52:26,433 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 13 predicate places. [2021-06-10 20:52:26,433 INFO L480 AbstractCegarLoop]: Abstraction has has 59 places, 46 transitions, 272 flow [2021-06-10 20:52:26,434 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 155.85714285714286) internal successors, (1091), 7 states have internal predecessors, (1091), 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) [2021-06-10 20:52:26,434 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 20:52:26,434 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 20:52:26,434 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-06-10 20:52:26,434 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 20:52:26,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 20:52:26,435 INFO L82 PathProgramCache]: Analyzing trace with hash 2062274875, now seen corresponding path program 2 times [2021-06-10 20:52:26,435 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 20:52:26,435 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814373298] [2021-06-10 20:52:26,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 20:52:26,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 20:52:26,490 INFO L142 QuantifierPusher]: treesize reduction 30, result has 25.0 percent of original size [2021-06-10 20:52:26,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-10 20:52:26,497 INFO L142 QuantifierPusher]: treesize reduction 30, result has 30.2 percent of original size [2021-06-10 20:52:26,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 20:52:26,515 INFO L142 QuantifierPusher]: treesize reduction 40, result has 54.0 percent of original size [2021-06-10 20:52:26,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-06-10 20:52:26,534 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.3 percent of original size [2021-06-10 20:52:26,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-06-10 20:52:26,558 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-10 20:52:26,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-10 20:52:26,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 20:52:26,575 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814373298] [2021-06-10 20:52:26,575 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 20:52:26,575 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-10 20:52:26,575 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62182920] [2021-06-10 20:52:26,575 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-10 20:52:26,576 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 20:52:26,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-10 20:52:26,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-06-10 20:52:26,577 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 213 [2021-06-10 20:52:26,578 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 46 transitions, 272 flow. Second operand has 7 states, 7 states have (on average 156.85714285714286) internal successors, (1098), 7 states have internal predecessors, (1098), 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) [2021-06-10 20:52:26,578 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 20:52:26,578 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 213 [2021-06-10 20:52:26,578 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 20:52:26,801 INFO L129 PetriNetUnfolder]: 249/481 cut-off events. [2021-06-10 20:52:26,801 INFO L130 PetriNetUnfolder]: For 1516/1987 co-relation queries the response was YES. [2021-06-10 20:52:26,804 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2152 conditions, 481 events. 249/481 cut-off events. For 1516/1987 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 2445 event pairs, 50 based on Foata normal form. 49/498 useless extension candidates. Maximal degree in co-relation 2128. Up to 280 conditions per place. [2021-06-10 20:52:26,808 INFO L132 encePairwiseOnDemand]: 204/213 looper letters, 21 selfloop transitions, 17 changer transitions 7/66 dead transitions. [2021-06-10 20:52:26,808 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 66 transitions, 533 flow [2021-06-10 20:52:26,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-10 20:52:26,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-10 20:52:26,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1122 transitions. [2021-06-10 20:52:26,815 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7525150905432596 [2021-06-10 20:52:26,816 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1122 transitions. [2021-06-10 20:52:26,816 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1122 transitions. [2021-06-10 20:52:26,817 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 20:52:26,817 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1122 transitions. [2021-06-10 20:52:26,819 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 160.28571428571428) internal successors, (1122), 7 states have internal predecessors, (1122), 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) [2021-06-10 20:52:26,822 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 213.0) internal successors, (1704), 8 states have internal predecessors, (1704), 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) [2021-06-10 20:52:26,822 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 213.0) internal successors, (1704), 8 states have internal predecessors, (1704), 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) [2021-06-10 20:52:26,822 INFO L185 Difference]: Start difference. First operand has 59 places, 46 transitions, 272 flow. Second operand 7 states and 1122 transitions. [2021-06-10 20:52:26,822 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 66 transitions, 533 flow [2021-06-10 20:52:26,826 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 66 transitions, 486 flow, removed 18 selfloop flow, removed 2 redundant places. [2021-06-10 20:52:26,828 INFO L241 Difference]: Finished difference. Result has 66 places, 56 transitions, 385 flow [2021-06-10 20:52:26,828 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=213, PETRI_DIFFERENCE_MINUEND_FLOW=244, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=385, PETRI_PLACES=66, PETRI_TRANSITIONS=56} [2021-06-10 20:52:26,828 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 20 predicate places. [2021-06-10 20:52:26,828 INFO L480 AbstractCegarLoop]: Abstraction has has 66 places, 56 transitions, 385 flow [2021-06-10 20:52:26,829 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 156.85714285714286) internal successors, (1098), 7 states have internal predecessors, (1098), 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) [2021-06-10 20:52:26,829 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 20:52:26,829 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 20:52:26,829 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-06-10 20:52:26,829 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 20:52:26,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 20:52:26,829 INFO L82 PathProgramCache]: Analyzing trace with hash 697190833, now seen corresponding path program 3 times [2021-06-10 20:52:26,830 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 20:52:26,830 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624375198] [2021-06-10 20:52:26,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 20:52:26,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 20:52:26,872 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:26,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-10 20:52:26,879 INFO L142 QuantifierPusher]: treesize reduction 10, result has 52.4 percent of original size [2021-06-10 20:52:26,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-10 20:52:26,887 INFO L142 QuantifierPusher]: treesize reduction 20, result has 53.5 percent of original size [2021-06-10 20:52:26,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-10 20:52:26,892 INFO L142 QuantifierPusher]: treesize reduction 20, result has 56.5 percent of original size [2021-06-10 20:52:26,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-06-10 20:52:26,910 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-10 20:52:26,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-10 20:52:26,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 20:52:26,927 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624375198] [2021-06-10 20:52:26,927 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 20:52:26,927 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-10 20:52:26,927 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485857984] [2021-06-10 20:52:26,927 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-10 20:52:26,928 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 20:52:26,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-10 20:52:26,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-06-10 20:52:26,929 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 213 [2021-06-10 20:52:26,930 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 56 transitions, 385 flow. Second operand has 6 states, 6 states have (on average 159.0) internal successors, (954), 6 states have internal predecessors, (954), 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) [2021-06-10 20:52:26,930 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 20:52:26,930 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 213 [2021-06-10 20:52:26,930 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 20:52:27,137 INFO L129 PetriNetUnfolder]: 282/544 cut-off events. [2021-06-10 20:52:27,138 INFO L130 PetriNetUnfolder]: For 3149/3957 co-relation queries the response was YES. [2021-06-10 20:52:27,141 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2955 conditions, 544 events. 282/544 cut-off events. For 3149/3957 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 2808 event pairs, 56 based on Foata normal form. 63/577 useless extension candidates. Maximal degree in co-relation 2927. Up to 305 conditions per place. [2021-06-10 20:52:27,146 INFO L132 encePairwiseOnDemand]: 204/213 looper letters, 22 selfloop transitions, 21 changer transitions 4/68 dead transitions. [2021-06-10 20:52:27,146 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 68 transitions, 621 flow [2021-06-10 20:52:27,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-10 20:52:27,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-10 20:52:27,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1133 transitions. [2021-06-10 20:52:27,149 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7598926894701542 [2021-06-10 20:52:27,149 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1133 transitions. [2021-06-10 20:52:27,149 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1133 transitions. [2021-06-10 20:52:27,150 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 20:52:27,150 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1133 transitions. [2021-06-10 20:52:27,152 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 161.85714285714286) internal successors, (1133), 7 states have internal predecessors, (1133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 20:52:27,154 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 213.0) internal successors, (1704), 8 states have internal predecessors, (1704), 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) [2021-06-10 20:52:27,154 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 213.0) internal successors, (1704), 8 states have internal predecessors, (1704), 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) [2021-06-10 20:52:27,154 INFO L185 Difference]: Start difference. First operand has 66 places, 56 transitions, 385 flow. Second operand 7 states and 1133 transitions. [2021-06-10 20:52:27,154 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 68 transitions, 621 flow [2021-06-10 20:52:27,158 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 68 transitions, 586 flow, removed 12 selfloop flow, removed 2 redundant places. [2021-06-10 20:52:27,160 INFO L241 Difference]: Finished difference. Result has 70 places, 60 transitions, 463 flow [2021-06-10 20:52:27,160 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=213, PETRI_DIFFERENCE_MINUEND_FLOW=352, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=463, PETRI_PLACES=70, PETRI_TRANSITIONS=60} [2021-06-10 20:52:27,160 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 24 predicate places. [2021-06-10 20:52:27,160 INFO L480 AbstractCegarLoop]: Abstraction has has 70 places, 60 transitions, 463 flow [2021-06-10 20:52:27,161 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 159.0) internal successors, (954), 6 states have internal predecessors, (954), 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) [2021-06-10 20:52:27,161 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 20:52:27,161 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 20:52:27,161 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-06-10 20:52:27,161 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 20:52:27,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 20:52:27,161 INFO L82 PathProgramCache]: Analyzing trace with hash -1452164973, now seen corresponding path program 4 times [2021-06-10 20:52:27,161 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 20:52:27,161 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129985568] [2021-06-10 20:52:27,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 20:52:27,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 20:52:27,209 INFO L142 QuantifierPusher]: treesize reduction 30, result has 25.0 percent of original size [2021-06-10 20:52:27,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-10 20:52:27,216 INFO L142 QuantifierPusher]: treesize reduction 16, result has 71.4 percent of original size [2021-06-10 20:52:27,217 INFO L147 QuantifierPusher]: treesize reduction 29, result has 27.5 percent of original size 11 [2021-06-10 20:52:27,233 INFO L142 QuantifierPusher]: treesize reduction 16, result has 72.9 percent of original size [2021-06-10 20:52:27,233 INFO L147 QuantifierPusher]: treesize reduction 29, result has 32.6 percent of original size 14 [2021-06-10 20:52:27,253 INFO L142 QuantifierPusher]: treesize reduction 21, result has 58.8 percent of original size [2021-06-10 20:52:27,254 INFO L147 QuantifierPusher]: treesize reduction 5, result has 83.3 percent of original size 25 [2021-06-10 20:52:27,279 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-10 20:52:27,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-10 20:52:27,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 20:52:27,295 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129985568] [2021-06-10 20:52:27,295 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 20:52:27,295 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-10 20:52:27,295 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706726469] [2021-06-10 20:52:27,296 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-10 20:52:27,296 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 20:52:27,296 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-10 20:52:27,296 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-06-10 20:52:27,297 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 213 [2021-06-10 20:52:27,298 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 60 transitions, 463 flow. Second operand has 7 states, 7 states have (on average 158.85714285714286) internal successors, (1112), 7 states have internal predecessors, (1112), 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) [2021-06-10 20:52:27,298 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 20:52:27,298 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 213 [2021-06-10 20:52:27,299 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 20:52:27,559 INFO L129 PetriNetUnfolder]: 279/549 cut-off events. [2021-06-10 20:52:27,559 INFO L130 PetriNetUnfolder]: For 3917/4853 co-relation queries the response was YES. [2021-06-10 20:52:27,563 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3352 conditions, 549 events. 279/549 cut-off events. For 3917/4853 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 2918 event pairs, 48 based on Foata normal form. 91/610 useless extension candidates. Maximal degree in co-relation 3322. Up to 307 conditions per place. [2021-06-10 20:52:27,568 INFO L132 encePairwiseOnDemand]: 204/213 looper letters, 16 selfloop transitions, 33 changer transitions 7/77 dead transitions. [2021-06-10 20:52:27,568 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 77 transitions, 818 flow [2021-06-10 20:52:27,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-10 20:52:27,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-06-10 20:52:27,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1619 transitions. [2021-06-10 20:52:27,572 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.760093896713615 [2021-06-10 20:52:27,573 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1619 transitions. [2021-06-10 20:52:27,573 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1619 transitions. [2021-06-10 20:52:27,574 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 20:52:27,574 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1619 transitions. [2021-06-10 20:52:27,576 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 161.9) internal successors, (1619), 10 states have internal predecessors, (1619), 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) [2021-06-10 20:52:27,580 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 213.0) internal successors, (2343), 11 states have internal predecessors, (2343), 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) [2021-06-10 20:52:27,580 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 213.0) internal successors, (2343), 11 states have internal predecessors, (2343), 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) [2021-06-10 20:52:27,580 INFO L185 Difference]: Start difference. First operand has 70 places, 60 transitions, 463 flow. Second operand 10 states and 1619 transitions. [2021-06-10 20:52:27,580 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 77 transitions, 818 flow [2021-06-10 20:52:27,587 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 77 transitions, 750 flow, removed 24 selfloop flow, removed 5 redundant places. [2021-06-10 20:52:27,588 INFO L241 Difference]: Finished difference. Result has 77 places, 66 transitions, 603 flow [2021-06-10 20:52:27,588 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=213, PETRI_DIFFERENCE_MINUEND_FLOW=418, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=603, PETRI_PLACES=77, PETRI_TRANSITIONS=66} [2021-06-10 20:52:27,589 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 31 predicate places. [2021-06-10 20:52:27,589 INFO L480 AbstractCegarLoop]: Abstraction has has 77 places, 66 transitions, 603 flow [2021-06-10 20:52:27,589 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 158.85714285714286) internal successors, (1112), 7 states have internal predecessors, (1112), 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) [2021-06-10 20:52:27,589 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 20:52:27,589 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 20:52:27,589 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-06-10 20:52:27,590 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 20:52:27,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 20:52:27,590 INFO L82 PathProgramCache]: Analyzing trace with hash -1583781680, now seen corresponding path program 1 times [2021-06-10 20:52:27,590 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 20:52:27,590 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028128954] [2021-06-10 20:52:27,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 20:52:27,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 20:52:27,653 INFO L142 QuantifierPusher]: treesize reduction 31, result has 57.5 percent of original size [2021-06-10 20:52:27,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-06-10 20:52:27,680 INFO L142 QuantifierPusher]: treesize reduction 31, result has 59.2 percent of original size [2021-06-10 20:52:27,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-06-10 20:52:27,743 INFO L142 QuantifierPusher]: treesize reduction 42, result has 25.0 percent of original size [2021-06-10 20:52:27,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-10 20:52:27,755 INFO L142 QuantifierPusher]: treesize reduction 55, result has 21.4 percent of original size [2021-06-10 20:52:27,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-10 20:52:27,769 INFO L142 QuantifierPusher]: treesize reduction 14, result has 75.0 percent of original size [2021-06-10 20:52:27,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-06-10 20:52:27,800 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-10 20:52:27,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-10 20:52:27,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 20:52:27,822 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028128954] [2021-06-10 20:52:27,823 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 20:52:27,823 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-10 20:52:27,823 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935448183] [2021-06-10 20:52:27,823 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-10 20:52:27,823 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 20:52:27,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-10 20:52:27,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-06-10 20:52:27,824 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 213 [2021-06-10 20:52:27,825 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 66 transitions, 603 flow. Second operand has 8 states, 8 states have (on average 153.875) internal successors, (1231), 8 states have internal predecessors, (1231), 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) [2021-06-10 20:52:27,825 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 20:52:27,825 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 213 [2021-06-10 20:52:27,825 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 20:52:28,107 INFO L129 PetriNetUnfolder]: 295/581 cut-off events. [2021-06-10 20:52:28,107 INFO L130 PetriNetUnfolder]: For 5206/6287 co-relation queries the response was YES. [2021-06-10 20:52:28,112 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3913 conditions, 581 events. 295/581 cut-off events. For 5206/6287 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 3084 event pairs, 30 based on Foata normal form. 63/616 useless extension candidates. Maximal degree in co-relation 3881. Up to 332 conditions per place. [2021-06-10 20:52:28,118 INFO L132 encePairwiseOnDemand]: 204/213 looper letters, 27 selfloop transitions, 35 changer transitions 7/90 dead transitions. [2021-06-10 20:52:28,118 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 90 transitions, 1120 flow [2021-06-10 20:52:28,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-10 20:52:28,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-10 20:52:28,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1102 transitions. [2021-06-10 20:52:28,121 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7391012743125419 [2021-06-10 20:52:28,121 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1102 transitions. [2021-06-10 20:52:28,122 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1102 transitions. [2021-06-10 20:52:28,122 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 20:52:28,122 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1102 transitions. [2021-06-10 20:52:28,124 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 157.42857142857142) internal successors, (1102), 7 states have internal predecessors, (1102), 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) [2021-06-10 20:52:28,126 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 213.0) internal successors, (1704), 8 states have internal predecessors, (1704), 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) [2021-06-10 20:52:28,127 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 213.0) internal successors, (1704), 8 states have internal predecessors, (1704), 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) [2021-06-10 20:52:28,127 INFO L185 Difference]: Start difference. First operand has 77 places, 66 transitions, 603 flow. Second operand 7 states and 1102 transitions. [2021-06-10 20:52:28,127 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 90 transitions, 1120 flow [2021-06-10 20:52:28,136 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 90 transitions, 941 flow, removed 55 selfloop flow, removed 8 redundant places. [2021-06-10 20:52:28,137 INFO L241 Difference]: Finished difference. Result has 77 places, 78 transitions, 767 flow [2021-06-10 20:52:28,138 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=213, PETRI_DIFFERENCE_MINUEND_FLOW=487, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=767, PETRI_PLACES=77, PETRI_TRANSITIONS=78} [2021-06-10 20:52:28,138 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 31 predicate places. [2021-06-10 20:52:28,138 INFO L480 AbstractCegarLoop]: Abstraction has has 77 places, 78 transitions, 767 flow [2021-06-10 20:52:28,138 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 153.875) internal successors, (1231), 8 states have internal predecessors, (1231), 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) [2021-06-10 20:52:28,138 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 20:52:28,139 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 20:52:28,139 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-06-10 20:52:28,139 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 20:52:28,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 20:52:28,139 INFO L82 PathProgramCache]: Analyzing trace with hash -1898392624, now seen corresponding path program 2 times [2021-06-10 20:52:28,139 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 20:52:28,139 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366407615] [2021-06-10 20:52:28,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 20:52:28,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 20:52:28,205 INFO L142 QuantifierPusher]: treesize reduction 31, result has 55.7 percent of original size [2021-06-10 20:52:28,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-06-10 20:52:28,231 INFO L142 QuantifierPusher]: treesize reduction 31, result has 57.5 percent of original size [2021-06-10 20:52:28,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-06-10 20:52:28,264 INFO L142 QuantifierPusher]: treesize reduction 17, result has 80.9 percent of original size [2021-06-10 20:52:28,265 INFO L147 QuantifierPusher]: treesize reduction 29, result has 59.7 percent of original size 43 [2021-06-10 20:52:28,305 INFO L142 QuantifierPusher]: treesize reduction 16, result has 74.6 percent of original size [2021-06-10 20:52:28,305 INFO L147 QuantifierPusher]: treesize reduction 29, result has 38.3 percent of original size 18 [2021-06-10 20:52:28,335 INFO L142 QuantifierPusher]: treesize reduction 21, result has 58.8 percent of original size [2021-06-10 20:52:28,336 INFO L147 QuantifierPusher]: treesize reduction 5, result has 83.3 percent of original size 25 [2021-06-10 20:52:28,343 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-10 20:52:28,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-10 20:52:28,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 20:52:28,360 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366407615] [2021-06-10 20:52:28,360 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 20:52:28,360 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-10 20:52:28,361 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825705275] [2021-06-10 20:52:28,361 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-10 20:52:28,361 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 20:52:28,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-10 20:52:28,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-06-10 20:52:28,363 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 154 out of 213 [2021-06-10 20:52:28,363 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 78 transitions, 767 flow. Second operand has 7 states, 7 states have (on average 155.0) internal successors, (1085), 7 states have internal predecessors, (1085), 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) [2021-06-10 20:52:28,364 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 20:52:28,364 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 213 [2021-06-10 20:52:28,364 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 20:52:28,641 INFO L129 PetriNetUnfolder]: 298/606 cut-off events. [2021-06-10 20:52:28,641 INFO L130 PetriNetUnfolder]: For 6678/8627 co-relation queries the response was YES. [2021-06-10 20:52:28,646 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4212 conditions, 606 events. 298/606 cut-off events. For 6678/8627 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 3410 event pairs, 34 based on Foata normal form. 88/665 useless extension candidates. Maximal degree in co-relation 4179. Up to 382 conditions per place. [2021-06-10 20:52:28,653 INFO L132 encePairwiseOnDemand]: 204/213 looper letters, 37 selfloop transitions, 34 changer transitions 5/97 dead transitions. [2021-06-10 20:52:28,653 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 97 transitions, 1230 flow [2021-06-10 20:52:28,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-10 20:52:28,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-06-10 20:52:28,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1579 transitions. [2021-06-10 20:52:28,657 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7413145539906103 [2021-06-10 20:52:28,657 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1579 transitions. [2021-06-10 20:52:28,657 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1579 transitions. [2021-06-10 20:52:28,658 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 20:52:28,658 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1579 transitions. [2021-06-10 20:52:28,661 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 157.9) internal successors, (1579), 10 states have internal predecessors, (1579), 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) [2021-06-10 20:52:28,664 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 213.0) internal successors, (2343), 11 states have internal predecessors, (2343), 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) [2021-06-10 20:52:28,665 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 213.0) internal successors, (2343), 11 states have internal predecessors, (2343), 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) [2021-06-10 20:52:28,665 INFO L185 Difference]: Start difference. First operand has 77 places, 78 transitions, 767 flow. Second operand 10 states and 1579 transitions. [2021-06-10 20:52:28,665 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 97 transitions, 1230 flow [2021-06-10 20:52:28,676 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 97 transitions, 1127 flow, removed 41 selfloop flow, removed 3 redundant places. [2021-06-10 20:52:28,678 INFO L241 Difference]: Finished difference. Result has 84 places, 87 transitions, 912 flow [2021-06-10 20:52:28,678 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=213, PETRI_DIFFERENCE_MINUEND_FLOW=692, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=912, PETRI_PLACES=84, PETRI_TRANSITIONS=87} [2021-06-10 20:52:28,678 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 38 predicate places. [2021-06-10 20:52:28,678 INFO L480 AbstractCegarLoop]: Abstraction has has 84 places, 87 transitions, 912 flow [2021-06-10 20:52:28,679 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 155.0) internal successors, (1085), 7 states have internal predecessors, (1085), 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) [2021-06-10 20:52:28,679 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 20:52:28,679 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 20:52:28,679 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-06-10 20:52:28,679 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 20:52:28,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 20:52:28,679 INFO L82 PathProgramCache]: Analyzing trace with hash -540799970, now seen corresponding path program 3 times [2021-06-10 20:52:28,680 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 20:52:28,680 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731126046] [2021-06-10 20:52:28,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 20:52:28,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 20:52:28,737 INFO L142 QuantifierPusher]: treesize reduction 31, result has 55.7 percent of original size [2021-06-10 20:52:28,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-06-10 20:52:28,762 INFO L142 QuantifierPusher]: treesize reduction 31, result has 57.5 percent of original size [2021-06-10 20:52:28,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-06-10 20:52:28,792 INFO L142 QuantifierPusher]: treesize reduction 46, result has 48.3 percent of original size [2021-06-10 20:52:28,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-06-10 20:52:28,825 INFO L142 QuantifierPusher]: treesize reduction 27, result has 66.7 percent of original size [2021-06-10 20:52:28,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-10 20:52:28,905 INFO L142 QuantifierPusher]: treesize reduction 21, result has 58.8 percent of original size [2021-06-10 20:52:28,906 INFO L147 QuantifierPusher]: treesize reduction 5, result has 83.3 percent of original size 25 [2021-06-10 20:52:28,933 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-10 20:52:28,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-10 20:52:28,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 20:52:28,955 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731126046] [2021-06-10 20:52:28,955 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 20:52:28,955 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-10 20:52:28,955 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284557473] [2021-06-10 20:52:28,955 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-10 20:52:28,956 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 20:52:28,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-10 20:52:28,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-06-10 20:52:28,957 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 154 out of 213 [2021-06-10 20:52:28,959 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 87 transitions, 912 flow. Second operand has 8 states, 8 states have (on average 154.875) internal successors, (1239), 8 states have internal predecessors, (1239), 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) [2021-06-10 20:52:28,959 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 20:52:28,959 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 213 [2021-06-10 20:52:28,959 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 20:52:29,302 INFO L129 PetriNetUnfolder]: 300/605 cut-off events. [2021-06-10 20:52:29,303 INFO L130 PetriNetUnfolder]: For 6847/8802 co-relation queries the response was YES. [2021-06-10 20:52:29,308 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4203 conditions, 605 events. 300/605 cut-off events. For 6847/8802 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 3310 event pairs, 36 based on Foata normal form. 98/675 useless extension candidates. Maximal degree in co-relation 4168. Up to 384 conditions per place. [2021-06-10 20:52:29,315 INFO L132 encePairwiseOnDemand]: 204/213 looper letters, 38 selfloop transitions, 35 changer transitions 5/99 dead transitions. [2021-06-10 20:52:29,316 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 99 transitions, 1278 flow [2021-06-10 20:52:29,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-10 20:52:29,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-06-10 20:52:29,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1579 transitions. [2021-06-10 20:52:29,320 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7413145539906103 [2021-06-10 20:52:29,320 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1579 transitions. [2021-06-10 20:52:29,320 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1579 transitions. [2021-06-10 20:52:29,321 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 20:52:29,321 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1579 transitions. [2021-06-10 20:52:29,324 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 157.9) internal successors, (1579), 10 states have internal predecessors, (1579), 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) [2021-06-10 20:52:29,327 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 213.0) internal successors, (2343), 11 states have internal predecessors, (2343), 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) [2021-06-10 20:52:29,327 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 213.0) internal successors, (2343), 11 states have internal predecessors, (2343), 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) [2021-06-10 20:52:29,327 INFO L185 Difference]: Start difference. First operand has 84 places, 87 transitions, 912 flow. Second operand 10 states and 1579 transitions. [2021-06-10 20:52:29,327 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 99 transitions, 1278 flow [2021-06-10 20:52:29,341 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 99 transitions, 1162 flow, removed 53 selfloop flow, removed 3 redundant places. [2021-06-10 20:52:29,342 INFO L241 Difference]: Finished difference. Result has 91 places, 89 transitions, 964 flow [2021-06-10 20:52:29,343 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=213, PETRI_DIFFERENCE_MINUEND_FLOW=838, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=964, PETRI_PLACES=91, PETRI_TRANSITIONS=89} [2021-06-10 20:52:29,343 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 45 predicate places. [2021-06-10 20:52:29,343 INFO L480 AbstractCegarLoop]: Abstraction has has 91 places, 89 transitions, 964 flow [2021-06-10 20:52:29,343 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 154.875) internal successors, (1239), 8 states have internal predecessors, (1239), 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) [2021-06-10 20:52:29,343 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 20:52:29,343 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 20:52:29,344 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-06-10 20:52:29,344 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 20:52:29,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 20:52:29,344 INFO L82 PathProgramCache]: Analyzing trace with hash 326620446, now seen corresponding path program 4 times [2021-06-10 20:52:29,344 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 20:52:29,344 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577033518] [2021-06-10 20:52:29,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 20:52:29,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 20:52:29,407 INFO L142 QuantifierPusher]: treesize reduction 32, result has 68.0 percent of original size [2021-06-10 20:52:29,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-06-10 20:52:29,449 INFO L142 QuantifierPusher]: treesize reduction 32, result has 68.9 percent of original size [2021-06-10 20:52:29,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-06-10 20:52:29,493 INFO L142 QuantifierPusher]: treesize reduction 12, result has 80.3 percent of original size [2021-06-10 20:52:29,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-06-10 20:52:29,521 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.9 percent of original size [2021-06-10 20:52:29,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-06-10 20:52:29,557 INFO L142 QuantifierPusher]: treesize reduction 21, result has 58.8 percent of original size [2021-06-10 20:52:29,557 INFO L147 QuantifierPusher]: treesize reduction 5, result has 83.3 percent of original size 25 [2021-06-10 20:52:29,586 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-10 20:52:29,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-10 20:52:29,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 20:52:29,605 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577033518] [2021-06-10 20:52:29,606 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 20:52:29,606 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-10 20:52:29,606 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513303568] [2021-06-10 20:52:29,606 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-10 20:52:29,606 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 20:52:29,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-10 20:52:29,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-06-10 20:52:29,608 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 213 [2021-06-10 20:52:29,608 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 89 transitions, 964 flow. Second operand has 8 states, 8 states have (on average 151.875) internal successors, (1215), 8 states have internal predecessors, (1215), 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) [2021-06-10 20:52:29,608 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 20:52:29,608 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 213 [2021-06-10 20:52:29,608 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 20:52:29,958 INFO L129 PetriNetUnfolder]: 306/635 cut-off events. [2021-06-10 20:52:29,958 INFO L130 PetriNetUnfolder]: For 6065/7799 co-relation queries the response was YES. [2021-06-10 20:52:29,964 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4271 conditions, 635 events. 306/635 cut-off events. For 6065/7799 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 3623 event pairs, 34 based on Foata normal form. 103/709 useless extension candidates. Maximal degree in co-relation 4233. Up to 384 conditions per place. [2021-06-10 20:52:29,970 INFO L132 encePairwiseOnDemand]: 204/213 looper letters, 39 selfloop transitions, 41 changer transitions 5/106 dead transitions. [2021-06-10 20:52:29,970 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 106 transitions, 1397 flow [2021-06-10 20:52:29,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-10 20:52:29,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-06-10 20:52:29,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1548 transitions. [2021-06-10 20:52:29,975 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7267605633802817 [2021-06-10 20:52:29,975 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1548 transitions. [2021-06-10 20:52:29,975 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1548 transitions. [2021-06-10 20:52:29,976 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 20:52:29,976 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1548 transitions. [2021-06-10 20:52:29,978 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 154.8) internal successors, (1548), 10 states have internal predecessors, (1548), 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) [2021-06-10 20:52:29,981 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 213.0) internal successors, (2343), 11 states have internal predecessors, (2343), 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) [2021-06-10 20:52:29,982 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 213.0) internal successors, (2343), 11 states have internal predecessors, (2343), 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) [2021-06-10 20:52:29,982 INFO L185 Difference]: Start difference. First operand has 91 places, 89 transitions, 964 flow. Second operand 10 states and 1548 transitions. [2021-06-10 20:52:29,982 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 106 transitions, 1397 flow [2021-06-10 20:52:29,995 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 106 transitions, 1295 flow, removed 19 selfloop flow, removed 8 redundant places. [2021-06-10 20:52:29,999 INFO L241 Difference]: Finished difference. Result has 94 places, 96 transitions, 1118 flow [2021-06-10 20:52:30,000 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=213, PETRI_DIFFERENCE_MINUEND_FLOW=884, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1118, PETRI_PLACES=94, PETRI_TRANSITIONS=96} [2021-06-10 20:52:30,000 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 48 predicate places. [2021-06-10 20:52:30,000 INFO L480 AbstractCegarLoop]: Abstraction has has 94 places, 96 transitions, 1118 flow [2021-06-10 20:52:30,001 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 151.875) internal successors, (1215), 8 states have internal predecessors, (1215), 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) [2021-06-10 20:52:30,001 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 20:52:30,001 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 20:52:30,001 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-06-10 20:52:30,001 INFO L428 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 20:52:30,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 20:52:30,002 INFO L82 PathProgramCache]: Analyzing trace with hash 365138220, now seen corresponding path program 5 times [2021-06-10 20:52:30,002 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 20:52:30,002 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289572948] [2021-06-10 20:52:30,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 20:52:30,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 20:52:30,079 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.7 percent of original size [2021-06-10 20:52:30,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-06-10 20:52:30,107 INFO L142 QuantifierPusher]: treesize reduction 21, result has 78.6 percent of original size [2021-06-10 20:52:30,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-06-10 20:52:30,141 INFO L142 QuantifierPusher]: treesize reduction 12, result has 85.0 percent of original size [2021-06-10 20:52:30,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-06-10 20:52:30,189 INFO L142 QuantifierPusher]: treesize reduction 12, result has 85.5 percent of original size [2021-06-10 20:52:30,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-06-10 20:52:30,237 INFO L142 QuantifierPusher]: treesize reduction 11, result has 78.0 percent of original size [2021-06-10 20:52:30,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-06-10 20:52:30,268 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-10 20:52:30,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-10 20:52:30,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 20:52:30,291 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289572948] [2021-06-10 20:52:30,292 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 20:52:30,292 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-10 20:52:30,292 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199035758] [2021-06-10 20:52:30,292 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-10 20:52:30,292 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 20:52:30,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-10 20:52:30,293 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-06-10 20:52:30,294 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 150 out of 213 [2021-06-10 20:52:30,294 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 96 transitions, 1118 flow. Second operand has 8 states, 8 states have (on average 150.875) internal successors, (1207), 8 states have internal predecessors, (1207), 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) [2021-06-10 20:52:30,294 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 20:52:30,294 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 150 of 213 [2021-06-10 20:52:30,295 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 20:52:30,676 INFO L129 PetriNetUnfolder]: 301/685 cut-off events. [2021-06-10 20:52:30,677 INFO L130 PetriNetUnfolder]: For 7255/9312 co-relation queries the response was YES. [2021-06-10 20:52:30,683 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4684 conditions, 685 events. 301/685 cut-off events. For 7255/9312 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 4265 event pairs, 24 based on Foata normal form. 102/759 useless extension candidates. Maximal degree in co-relation 4644. Up to 340 conditions per place. [2021-06-10 20:52:30,689 INFO L132 encePairwiseOnDemand]: 206/213 looper letters, 37 selfloop transitions, 45 changer transitions 5/108 dead transitions. [2021-06-10 20:52:30,689 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 108 transitions, 1504 flow [2021-06-10 20:52:30,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-10 20:52:30,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-06-10 20:52:30,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1228 transitions. [2021-06-10 20:52:30,692 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7206572769953051 [2021-06-10 20:52:30,692 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1228 transitions. [2021-06-10 20:52:30,692 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1228 transitions. [2021-06-10 20:52:30,693 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 20:52:30,693 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1228 transitions. [2021-06-10 20:52:30,695 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 153.5) internal successors, (1228), 8 states have internal predecessors, (1228), 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) [2021-06-10 20:52:30,697 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 213.0) internal successors, (1917), 9 states have internal predecessors, (1917), 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) [2021-06-10 20:52:30,698 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 213.0) internal successors, (1917), 9 states have internal predecessors, (1917), 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) [2021-06-10 20:52:30,698 INFO L185 Difference]: Start difference. First operand has 94 places, 96 transitions, 1118 flow. Second operand 8 states and 1228 transitions. [2021-06-10 20:52:30,698 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 108 transitions, 1504 flow [2021-06-10 20:52:30,716 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 108 transitions, 1448 flow, removed 28 selfloop flow, removed 2 redundant places. [2021-06-10 20:52:30,718 INFO L241 Difference]: Finished difference. Result has 100 places, 98 transitions, 1260 flow [2021-06-10 20:52:30,718 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=213, PETRI_DIFFERENCE_MINUEND_FLOW=1078, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1260, PETRI_PLACES=100, PETRI_TRANSITIONS=98} [2021-06-10 20:52:30,718 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 54 predicate places. [2021-06-10 20:52:30,718 INFO L480 AbstractCegarLoop]: Abstraction has has 100 places, 98 transitions, 1260 flow [2021-06-10 20:52:30,719 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 150.875) internal successors, (1207), 8 states have internal predecessors, (1207), 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) [2021-06-10 20:52:30,719 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 20:52:30,719 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 20:52:30,719 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-06-10 20:52:30,719 INFO L428 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 20:52:30,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 20:52:30,719 INFO L82 PathProgramCache]: Analyzing trace with hash -975239594, now seen corresponding path program 1 times [2021-06-10 20:52:30,720 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 20:52:30,720 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121028001] [2021-06-10 20:52:30,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 20:52:30,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 20:52:30,747 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:30,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 20:52:30,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:30,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 20:52:30,752 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-10 20:52:30,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-10 20:52:30,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 20:52:30,767 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121028001] [2021-06-10 20:52:30,767 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 20:52:30,767 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-10 20:52:30,767 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356990242] [2021-06-10 20:52:30,767 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-10 20:52:30,767 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 20:52:30,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-10 20:52:30,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-10 20:52:30,768 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 213 [2021-06-10 20:52:30,769 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 98 transitions, 1260 flow. Second operand has 4 states, 4 states have (on average 170.5) internal successors, (682), 4 states have internal predecessors, (682), 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) [2021-06-10 20:52:30,769 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 20:52:30,769 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 213 [2021-06-10 20:52:30,769 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 20:52:30,967 INFO L129 PetriNetUnfolder]: 526/1152 cut-off events. [2021-06-10 20:52:30,967 INFO L130 PetriNetUnfolder]: For 14641/16076 co-relation queries the response was YES. [2021-06-10 20:52:30,978 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7611 conditions, 1152 events. 526/1152 cut-off events. For 14641/16076 co-relation queries the response was YES. Maximal size of possible extension queue 136. Compared 8047 event pairs, 62 based on Foata normal form. 156/1196 useless extension candidates. Maximal degree in co-relation 7568. Up to 597 conditions per place. [2021-06-10 20:52:30,988 INFO L132 encePairwiseOnDemand]: 209/213 looper letters, 7 selfloop transitions, 2 changer transitions 1/102 dead transitions. [2021-06-10 20:52:30,989 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 102 transitions, 1317 flow [2021-06-10 20:52:30,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-10 20:52:30,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-06-10 20:52:30,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 687 transitions. [2021-06-10 20:52:30,991 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8063380281690141 [2021-06-10 20:52:30,991 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 687 transitions. [2021-06-10 20:52:30,991 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 687 transitions. [2021-06-10 20:52:30,991 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 20:52:30,991 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 687 transitions. [2021-06-10 20:52:30,993 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 171.75) internal successors, (687), 4 states have internal predecessors, (687), 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) [2021-06-10 20:52:30,994 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 213.0) internal successors, (1065), 5 states have internal predecessors, (1065), 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) [2021-06-10 20:52:30,994 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 213.0) internal successors, (1065), 5 states have internal predecessors, (1065), 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) [2021-06-10 20:52:30,994 INFO L185 Difference]: Start difference. First operand has 100 places, 98 transitions, 1260 flow. Second operand 4 states and 687 transitions. [2021-06-10 20:52:30,994 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 102 transitions, 1317 flow [2021-06-10 20:52:31,022 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 102 transitions, 1232 flow, removed 17 selfloop flow, removed 7 redundant places. [2021-06-10 20:52:31,024 INFO L241 Difference]: Finished difference. Result has 96 places, 99 transitions, 1197 flow [2021-06-10 20:52:31,024 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=213, PETRI_DIFFERENCE_MINUEND_FLOW=1183, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1197, PETRI_PLACES=96, PETRI_TRANSITIONS=99} [2021-06-10 20:52:31,025 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 50 predicate places. [2021-06-10 20:52:31,025 INFO L480 AbstractCegarLoop]: Abstraction has has 96 places, 99 transitions, 1197 flow [2021-06-10 20:52:31,025 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 170.5) internal successors, (682), 4 states have internal predecessors, (682), 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) [2021-06-10 20:52:31,025 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 20:52:31,025 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 20:52:31,025 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-06-10 20:52:31,025 INFO L428 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 20:52:31,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 20:52:31,026 INFO L82 PathProgramCache]: Analyzing trace with hash -1162501010, now seen corresponding path program 2 times [2021-06-10 20:52:31,026 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 20:52:31,026 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603870412] [2021-06-10 20:52:31,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 20:52:31,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 20:52:31,079 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:31,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 20:52:31,083 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-06-10 20:52:31,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 20:52:31,091 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:31,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 20:52:31,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 20:52:31,092 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603870412] [2021-06-10 20:52:31,094 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 20:52:31,094 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-10 20:52:31,094 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218986018] [2021-06-10 20:52:31,096 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-10 20:52:31,096 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 20:52:31,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-10 20:52:31,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-10 20:52:31,097 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 213 [2021-06-10 20:52:31,097 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 99 transitions, 1197 flow. Second operand has 4 states, 4 states have (on average 171.75) internal successors, (687), 4 states have internal predecessors, (687), 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) [2021-06-10 20:52:31,097 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 20:52:31,098 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 213 [2021-06-10 20:52:31,098 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 20:52:31,602 INFO L129 PetriNetUnfolder]: 1788/3324 cut-off events. [2021-06-10 20:52:31,602 INFO L130 PetriNetUnfolder]: For 24311/27178 co-relation queries the response was YES. [2021-06-10 20:52:31,632 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15043 conditions, 3324 events. 1788/3324 cut-off events. For 24311/27178 co-relation queries the response was YES. Maximal size of possible extension queue 463. Compared 26060 event pairs, 650 based on Foata normal form. 594/3525 useless extension candidates. Maximal degree in co-relation 15003. Up to 1561 conditions per place. [2021-06-10 20:52:31,658 INFO L132 encePairwiseOnDemand]: 206/213 looper letters, 17 selfloop transitions, 10 changer transitions 0/112 dead transitions. [2021-06-10 20:52:31,659 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 112 transitions, 1277 flow [2021-06-10 20:52:31,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-10 20:52:31,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-10 20:52:31,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 877 transitions. [2021-06-10 20:52:31,660 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8234741784037559 [2021-06-10 20:52:31,660 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 877 transitions. [2021-06-10 20:52:31,660 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 877 transitions. [2021-06-10 20:52:31,661 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 20:52:31,661 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 877 transitions. [2021-06-10 20:52:31,662 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 175.4) internal successors, (877), 5 states have internal predecessors, (877), 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) [2021-06-10 20:52:31,664 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 213.0) internal successors, (1278), 6 states have internal predecessors, (1278), 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) [2021-06-10 20:52:31,664 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 213.0) internal successors, (1278), 6 states have internal predecessors, (1278), 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) [2021-06-10 20:52:31,664 INFO L185 Difference]: Start difference. First operand has 96 places, 99 transitions, 1197 flow. Second operand 5 states and 877 transitions. [2021-06-10 20:52:31,665 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 112 transitions, 1277 flow [2021-06-10 20:52:31,704 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 112 transitions, 1273 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-06-10 20:52:31,706 INFO L241 Difference]: Finished difference. Result has 100 places, 108 transitions, 1296 flow [2021-06-10 20:52:31,706 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=213, PETRI_DIFFERENCE_MINUEND_FLOW=1193, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1296, PETRI_PLACES=100, PETRI_TRANSITIONS=108} [2021-06-10 20:52:31,706 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 54 predicate places. [2021-06-10 20:52:31,706 INFO L480 AbstractCegarLoop]: Abstraction has has 100 places, 108 transitions, 1296 flow [2021-06-10 20:52:31,707 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 171.75) internal successors, (687), 4 states have internal predecessors, (687), 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) [2021-06-10 20:52:31,707 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 20:52:31,707 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 20:52:31,707 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-06-10 20:52:31,707 INFO L428 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 20:52:31,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 20:52:31,708 INFO L82 PathProgramCache]: Analyzing trace with hash 813815870, now seen corresponding path program 1 times [2021-06-10 20:52:31,708 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 20:52:31,708 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216549947] [2021-06-10 20:52:31,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 20:52:31,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 20:52:31,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:31,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 20:52:31,763 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:31,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 20:52:31,769 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-06-10 20:52:31,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 20:52:31,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:31,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 20:52:31,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 20:52:31,779 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216549947] [2021-06-10 20:52:31,779 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 20:52:31,779 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-10 20:52:31,780 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878392320] [2021-06-10 20:52:31,780 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-10 20:52:31,780 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 20:52:31,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-10 20:52:31,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-06-10 20:52:31,781 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 213 [2021-06-10 20:52:31,782 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 108 transitions, 1296 flow. Second operand has 5 states, 5 states have (on average 171.8) internal successors, (859), 5 states have internal predecessors, (859), 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) [2021-06-10 20:52:31,782 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 20:52:31,782 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 213 [2021-06-10 20:52:31,782 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 20:52:32,158 INFO L129 PetriNetUnfolder]: 1033/2177 cut-off events. [2021-06-10 20:52:32,159 INFO L130 PetriNetUnfolder]: For 22109/33735 co-relation queries the response was YES. [2021-06-10 20:52:32,177 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11148 conditions, 2177 events. 1033/2177 cut-off events. For 22109/33735 co-relation queries the response was YES. Maximal size of possible extension queue 356. Compared 17601 event pairs, 175 based on Foata normal form. 1097/3019 useless extension candidates. Maximal degree in co-relation 11105. Up to 1275 conditions per place. [2021-06-10 20:52:32,187 INFO L132 encePairwiseOnDemand]: 206/213 looper letters, 15 selfloop transitions, 19 changer transitions 5/109 dead transitions. [2021-06-10 20:52:32,187 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 109 transitions, 1249 flow [2021-06-10 20:52:32,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-10 20:52:32,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-10 20:52:32,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1228 transitions. [2021-06-10 20:52:32,189 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.823608316566063 [2021-06-10 20:52:32,190 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1228 transitions. [2021-06-10 20:52:32,190 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1228 transitions. [2021-06-10 20:52:32,190 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 20:52:32,190 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1228 transitions. [2021-06-10 20:52:32,192 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 175.42857142857142) internal successors, (1228), 7 states have internal predecessors, (1228), 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) [2021-06-10 20:52:32,194 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 213.0) internal successors, (1704), 8 states have internal predecessors, (1704), 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) [2021-06-10 20:52:32,194 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 213.0) internal successors, (1704), 8 states have internal predecessors, (1704), 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) [2021-06-10 20:52:32,194 INFO L185 Difference]: Start difference. First operand has 100 places, 108 transitions, 1296 flow. Second operand 7 states and 1228 transitions. [2021-06-10 20:52:32,194 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 109 transitions, 1249 flow [2021-06-10 20:52:32,218 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 109 transitions, 1216 flow, removed 3 selfloop flow, removed 4 redundant places. [2021-06-10 20:52:32,220 INFO L241 Difference]: Finished difference. Result has 105 places, 100 transitions, 1168 flow [2021-06-10 20:52:32,220 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=213, PETRI_DIFFERENCE_MINUEND_FLOW=1072, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1168, PETRI_PLACES=105, PETRI_TRANSITIONS=100} [2021-06-10 20:52:32,221 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 59 predicate places. [2021-06-10 20:52:32,221 INFO L480 AbstractCegarLoop]: Abstraction has has 105 places, 100 transitions, 1168 flow [2021-06-10 20:52:32,221 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 171.8) internal successors, (859), 5 states have internal predecessors, (859), 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) [2021-06-10 20:52:32,221 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 20:52:32,221 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] [2021-06-10 20:52:32,221 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-06-10 20:52:32,221 INFO L428 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 20:52:32,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 20:52:32,222 INFO L82 PathProgramCache]: Analyzing trace with hash 1428537291, now seen corresponding path program 1 times [2021-06-10 20:52:32,222 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 20:52:32,222 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472918921] [2021-06-10 20:52:32,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 20:52:32,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 20:52:32,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:32,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 20:52:32,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:32,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 20:52:32,254 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-10 20:52:32,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-10 20:52:32,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 20:52:32,269 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472918921] [2021-06-10 20:52:32,269 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 20:52:32,269 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-10 20:52:32,269 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885367579] [2021-06-10 20:52:32,269 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-10 20:52:32,269 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 20:52:32,269 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-10 20:52:32,270 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-10 20:52:32,270 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 175 out of 213 [2021-06-10 20:52:32,271 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 100 transitions, 1168 flow. Second operand has 4 states, 4 states have (on average 176.0) internal successors, (704), 4 states have internal predecessors, (704), 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) [2021-06-10 20:52:32,271 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 20:52:32,271 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 175 of 213 [2021-06-10 20:52:32,271 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 20:52:32,631 INFO L129 PetriNetUnfolder]: 1618/3299 cut-off events. [2021-06-10 20:52:32,631 INFO L130 PetriNetUnfolder]: For 31498/44482 co-relation queries the response was YES. [2021-06-10 20:52:32,655 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19152 conditions, 3299 events. 1618/3299 cut-off events. For 31498/44482 co-relation queries the response was YES. Maximal size of possible extension queue 543. Compared 28102 event pairs, 277 based on Foata normal form. 250/3109 useless extension candidates. Maximal degree in co-relation 19107. Up to 2092 conditions per place. [2021-06-10 20:52:32,671 INFO L132 encePairwiseOnDemand]: 209/213 looper letters, 5 selfloop transitions, 5 changer transitions 1/103 dead transitions. [2021-06-10 20:52:32,671 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 103 transitions, 1220 flow [2021-06-10 20:52:32,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-10 20:52:32,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-10 20:52:32,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 886 transitions. [2021-06-10 20:52:32,673 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.831924882629108 [2021-06-10 20:52:32,673 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 886 transitions. [2021-06-10 20:52:32,673 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 886 transitions. [2021-06-10 20:52:32,673 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 20:52:32,673 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 886 transitions. [2021-06-10 20:52:32,674 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 177.2) internal successors, (886), 5 states have internal predecessors, (886), 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) [2021-06-10 20:52:32,675 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 213.0) internal successors, (1278), 6 states have internal predecessors, (1278), 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) [2021-06-10 20:52:32,676 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 213.0) internal successors, (1278), 6 states have internal predecessors, (1278), 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) [2021-06-10 20:52:32,676 INFO L185 Difference]: Start difference. First operand has 105 places, 100 transitions, 1168 flow. Second operand 5 states and 886 transitions. [2021-06-10 20:52:32,676 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 103 transitions, 1220 flow [2021-06-10 20:52:32,756 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 103 transitions, 1166 flow, removed 19 selfloop flow, removed 3 redundant places. [2021-06-10 20:52:32,758 INFO L241 Difference]: Finished difference. Result has 109 places, 101 transitions, 1148 flow [2021-06-10 20:52:32,758 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=213, PETRI_DIFFERENCE_MINUEND_FLOW=1116, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1148, PETRI_PLACES=109, PETRI_TRANSITIONS=101} [2021-06-10 20:52:32,759 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 63 predicate places. [2021-06-10 20:52:32,759 INFO L480 AbstractCegarLoop]: Abstraction has has 109 places, 101 transitions, 1148 flow [2021-06-10 20:52:32,759 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 176.0) internal successors, (704), 4 states have internal predecessors, (704), 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) [2021-06-10 20:52:32,759 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 20:52:32,759 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] [2021-06-10 20:52:32,759 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-06-10 20:52:32,759 INFO L428 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 20:52:32,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 20:52:32,760 INFO L82 PathProgramCache]: Analyzing trace with hash 1728440512, now seen corresponding path program 1 times [2021-06-10 20:52:32,760 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 20:52:32,760 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8614640] [2021-06-10 20:52:32,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 20:52:32,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 20:52:32,832 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:32,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 20:52:32,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:32,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 20:52:32,840 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:32,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 20:52:32,845 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-06-10 20:52:32,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 20:52:32,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:32,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 20:52:32,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 20:52:32,855 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8614640] [2021-06-10 20:52:32,855 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 20:52:32,855 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-10 20:52:32,855 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072901654] [2021-06-10 20:52:32,855 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-10 20:52:32,856 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 20:52:32,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-10 20:52:32,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-06-10 20:52:32,857 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 213 [2021-06-10 20:52:32,858 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 101 transitions, 1148 flow. Second operand has 6 states, 6 states have (on average 171.83333333333334) internal successors, (1031), 6 states have internal predecessors, (1031), 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) [2021-06-10 20:52:32,858 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 20:52:32,858 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 213 [2021-06-10 20:52:32,858 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 20:52:33,257 INFO L129 PetriNetUnfolder]: 1043/2238 cut-off events. [2021-06-10 20:52:33,257 INFO L130 PetriNetUnfolder]: For 29454/45351 co-relation queries the response was YES. [2021-06-10 20:52:33,272 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12006 conditions, 2238 events. 1043/2238 cut-off events. For 29454/45351 co-relation queries the response was YES. Maximal size of possible extension queue 414. Compared 18997 event pairs, 30 based on Foata normal form. 1679/3564 useless extension candidates. Maximal degree in co-relation 11959. Up to 1355 conditions per place. [2021-06-10 20:52:33,281 INFO L132 encePairwiseOnDemand]: 206/213 looper letters, 6 selfloop transitions, 28 changer transitions 11/102 dead transitions. [2021-06-10 20:52:33,281 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 102 transitions, 1173 flow [2021-06-10 20:52:33,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-10 20:52:33,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-06-10 20:52:33,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1579 transitions. [2021-06-10 20:52:33,284 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8236828377673449 [2021-06-10 20:52:33,284 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1579 transitions. [2021-06-10 20:52:33,284 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1579 transitions. [2021-06-10 20:52:33,284 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 20:52:33,284 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1579 transitions. [2021-06-10 20:52:33,286 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 175.44444444444446) internal successors, (1579), 9 states have internal predecessors, (1579), 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) [2021-06-10 20:52:33,288 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 213.0) internal successors, (2130), 10 states have internal predecessors, (2130), 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) [2021-06-10 20:52:33,288 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 213.0) internal successors, (2130), 10 states have internal predecessors, (2130), 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) [2021-06-10 20:52:33,288 INFO L185 Difference]: Start difference. First operand has 109 places, 101 transitions, 1148 flow. Second operand 9 states and 1579 transitions. [2021-06-10 20:52:33,288 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 102 transitions, 1173 flow [2021-06-10 20:52:33,332 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 102 transitions, 1048 flow, removed 39 selfloop flow, removed 10 redundant places. [2021-06-10 20:52:33,334 INFO L241 Difference]: Finished difference. Result has 110 places, 91 transitions, 930 flow [2021-06-10 20:52:33,334 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=213, PETRI_DIFFERENCE_MINUEND_FLOW=840, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=930, PETRI_PLACES=110, PETRI_TRANSITIONS=91} [2021-06-10 20:52:33,334 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 64 predicate places. [2021-06-10 20:52:33,334 INFO L480 AbstractCegarLoop]: Abstraction has has 110 places, 91 transitions, 930 flow [2021-06-10 20:52:33,335 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 171.83333333333334) internal successors, (1031), 6 states have internal predecessors, (1031), 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) [2021-06-10 20:52:33,335 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 20:52:33,335 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, 1, 1] [2021-06-10 20:52:33,335 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-06-10 20:52:33,335 INFO L428 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 20:52:33,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 20:52:33,335 INFO L82 PathProgramCache]: Analyzing trace with hash 1065865770, now seen corresponding path program 1 times [2021-06-10 20:52:33,336 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 20:52:33,336 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867234917] [2021-06-10 20:52:33,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 20:52:33,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 20:52:33,382 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:33,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 20:52:33,385 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:33,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 20:52:33,389 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:33,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 20:52:33,394 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:33,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 20:52:33,400 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-06-10 20:52:33,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 20:52:33,409 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:33,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 20:52:33,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 20:52:33,409 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867234917] [2021-06-10 20:52:33,410 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 20:52:33,410 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-10 20:52:33,410 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659362013] [2021-06-10 20:52:33,410 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-10 20:52:33,410 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 20:52:33,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-10 20:52:33,411 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-06-10 20:52:33,412 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 213 [2021-06-10 20:52:33,412 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 91 transitions, 930 flow. Second operand has 7 states, 7 states have (on average 171.85714285714286) internal successors, (1203), 7 states have internal predecessors, (1203), 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) [2021-06-10 20:52:33,412 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 20:52:33,412 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 213 [2021-06-10 20:52:33,413 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 20:52:33,743 INFO L129 PetriNetUnfolder]: 885/1940 cut-off events. [2021-06-10 20:52:33,743 INFO L130 PetriNetUnfolder]: For 27751/45059 co-relation queries the response was YES. [2021-06-10 20:52:33,759 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11968 conditions, 1940 events. 885/1940 cut-off events. For 27751/45059 co-relation queries the response was YES. Maximal size of possible extension queue 408. Compared 16657 event pairs, 0 based on Foata normal form. 1442/3038 useless extension candidates. Maximal degree in co-relation 11928. Up to 1158 conditions per place. [2021-06-10 20:52:33,765 INFO L132 encePairwiseOnDemand]: 206/213 looper letters, 2 selfloop transitions, 33 changer transitions 4/96 dead transitions. [2021-06-10 20:52:33,765 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 96 transitions, 1064 flow [2021-06-10 20:52:33,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-10 20:52:33,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-06-10 20:52:33,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1922 transitions. [2021-06-10 20:52:33,767 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8203158344003414 [2021-06-10 20:52:33,768 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1922 transitions. [2021-06-10 20:52:33,768 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1922 transitions. [2021-06-10 20:52:33,768 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 20:52:33,768 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1922 transitions. [2021-06-10 20:52:33,770 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 174.72727272727272) internal successors, (1922), 11 states have internal predecessors, (1922), 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) [2021-06-10 20:52:33,772 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 213.0) internal successors, (2556), 12 states have internal predecessors, (2556), 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) [2021-06-10 20:52:33,773 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 213.0) internal successors, (2556), 12 states have internal predecessors, (2556), 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) [2021-06-10 20:52:33,773 INFO L185 Difference]: Start difference. First operand has 110 places, 91 transitions, 930 flow. Second operand 11 states and 1922 transitions. [2021-06-10 20:52:33,773 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 96 transitions, 1064 flow [2021-06-10 20:52:33,942 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 96 transitions, 885 flow, removed 61 selfloop flow, removed 13 redundant places. [2021-06-10 20:52:33,946 INFO L241 Difference]: Finished difference. Result has 107 places, 92 transitions, 845 flow [2021-06-10 20:52:33,946 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=213, PETRI_DIFFERENCE_MINUEND_FLOW=751, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=845, PETRI_PLACES=107, PETRI_TRANSITIONS=92} [2021-06-10 20:52:33,946 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 61 predicate places. [2021-06-10 20:52:33,946 INFO L480 AbstractCegarLoop]: Abstraction has has 107 places, 92 transitions, 845 flow [2021-06-10 20:52:33,947 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 171.85714285714286) internal successors, (1203), 7 states have internal predecessors, (1203), 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) [2021-06-10 20:52:33,947 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 20:52:33,947 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, 1, 1, 1, 1, 1] [2021-06-10 20:52:33,947 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-06-10 20:52:33,947 INFO L428 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 20:52:33,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 20:52:33,947 INFO L82 PathProgramCache]: Analyzing trace with hash 1043922142, now seen corresponding path program 1 times [2021-06-10 20:52:33,947 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 20:52:33,948 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236800443] [2021-06-10 20:52:33,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 20:52:33,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 20:52:33,995 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:33,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 20:52:33,995 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:33,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 20:52:33,998 INFO L142 QuantifierPusher]: treesize reduction 4, result has 85.2 percent of original size [2021-06-10 20:52:34,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-10 20:52:34,018 INFO L142 QuantifierPusher]: treesize reduction 10, result has 56.5 percent of original size [2021-06-10 20:52:34,018 INFO L147 QuantifierPusher]: treesize reduction 4, result has 69.2 percent of original size 9 [2021-06-10 20:52:34,030 INFO L142 QuantifierPusher]: treesize reduction 14, result has 39.1 percent of original size [2021-06-10 20:52:34,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 20:52:34,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 20:52:34,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-10 20:52:34,045 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-10 20:52:34,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-10 20:52:34,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 20:52:34,065 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236800443] [2021-06-10 20:52:34,065 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 20:52:34,065 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-10 20:52:34,066 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948985076] [2021-06-10 20:52:34,066 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-10 20:52:34,066 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 20:52:34,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-10 20:52:34,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-06-10 20:52:34,067 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 213 [2021-06-10 20:52:34,068 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 92 transitions, 845 flow. Second operand has 8 states, 8 states have (on average 153.25) internal successors, (1226), 8 states have internal predecessors, (1226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 20:52:34,068 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 20:52:34,068 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 213 [2021-06-10 20:52:34,068 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 20:52:34,873 INFO L129 PetriNetUnfolder]: 2992/6697 cut-off events. [2021-06-10 20:52:34,873 INFO L130 PetriNetUnfolder]: For 39237/44607 co-relation queries the response was YES. [2021-06-10 20:52:34,913 INFO L84 FinitePrefix]: Finished finitePrefix Result has 30836 conditions, 6697 events. 2992/6697 cut-off events. For 39237/44607 co-relation queries the response was YES. Maximal size of possible extension queue 1367. Compared 71839 event pairs, 16 based on Foata normal form. 312/6159 useless extension candidates. Maximal degree in co-relation 30793. Up to 1820 conditions per place. [2021-06-10 20:52:34,922 INFO L132 encePairwiseOnDemand]: 205/213 looper letters, 21 selfloop transitions, 1 changer transitions 129/200 dead transitions. [2021-06-10 20:52:34,922 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 200 transitions, 2340 flow [2021-06-10 20:52:34,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-10 20:52:34,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-06-10 20:52:34,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1558 transitions. [2021-06-10 20:52:34,924 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7314553990610329 [2021-06-10 20:52:34,924 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1558 transitions. [2021-06-10 20:52:34,924 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1558 transitions. [2021-06-10 20:52:34,925 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 20:52:34,925 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1558 transitions. [2021-06-10 20:52:34,927 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 155.8) internal successors, (1558), 10 states have internal predecessors, (1558), 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) [2021-06-10 20:52:34,929 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 213.0) internal successors, (2343), 11 states have internal predecessors, (2343), 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) [2021-06-10 20:52:34,929 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 213.0) internal successors, (2343), 11 states have internal predecessors, (2343), 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) [2021-06-10 20:52:34,929 INFO L185 Difference]: Start difference. First operand has 107 places, 92 transitions, 845 flow. Second operand 10 states and 1558 transitions. [2021-06-10 20:52:34,929 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 200 transitions, 2340 flow [2021-06-10 20:52:36,122 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 200 transitions, 2175 flow, removed 52 selfloop flow, removed 11 redundant places. [2021-06-10 20:52:36,124 INFO L241 Difference]: Finished difference. Result has 112 places, 69 transitions, 514 flow [2021-06-10 20:52:36,124 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=213, PETRI_DIFFERENCE_MINUEND_FLOW=724, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=514, PETRI_PLACES=112, PETRI_TRANSITIONS=69} [2021-06-10 20:52:36,124 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 66 predicate places. [2021-06-10 20:52:36,124 INFO L480 AbstractCegarLoop]: Abstraction has has 112 places, 69 transitions, 514 flow [2021-06-10 20:52:36,124 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 153.25) internal successors, (1226), 8 states have internal predecessors, (1226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 20:52:36,125 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 20:52:36,125 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, 1, 1, 1, 1, 1] [2021-06-10 20:52:36,125 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-06-10 20:52:36,125 INFO L428 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 20:52:36,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 20:52:36,125 INFO L82 PathProgramCache]: Analyzing trace with hash -954347756, now seen corresponding path program 2 times [2021-06-10 20:52:36,125 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 20:52:36,125 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464633202] [2021-06-10 20:52:36,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 20:52:36,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-10 20:52:36,165 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-10 20:52:36,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-10 20:52:36,209 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-10 20:52:36,250 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-06-10 20:52:36,250 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-06-10 20:52:36,250 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-06-10 20:52:36,352 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.06 08:52:36 BasicIcfg [2021-06-10 20:52:36,352 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-10 20:52:36,352 INFO L168 Benchmark]: Toolchain (without parser) took 20967.59 ms. Allocated memory was 339.7 MB in the beginning and 792.7 MB in the end (delta: 453.0 MB). Free memory was 302.6 MB in the beginning and 484.6 MB in the end (delta: -182.0 MB). Peak memory consumption was 273.9 MB. Max. memory is 16.0 GB. [2021-06-10 20:52:36,353 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 339.7 MB. Free memory was 321.0 MB in the beginning and 320.9 MB in the end (delta: 125.9 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-10 20:52:36,353 INFO L168 Benchmark]: CACSL2BoogieTranslator took 530.03 ms. Allocated memory is still 339.7 MB. Free memory was 302.4 MB in the beginning and 298.8 MB in the end (delta: 3.6 MB). Peak memory consumption was 9.3 MB. Max. memory is 16.0 GB. [2021-06-10 20:52:36,353 INFO L168 Benchmark]: Boogie Procedure Inliner took 62.65 ms. Allocated memory is still 339.7 MB. Free memory was 298.8 MB in the beginning and 296.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-10 20:52:36,353 INFO L168 Benchmark]: Boogie Preprocessor took 57.71 ms. Allocated memory is still 339.7 MB. Free memory was 296.7 MB in the beginning and 293.5 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. [2021-06-10 20:52:36,353 INFO L168 Benchmark]: RCFGBuilder took 1665.53 ms. Allocated memory is still 339.7 MB. Free memory was 293.5 MB in the beginning and 239.0 MB in the end (delta: 54.6 MB). Peak memory consumption was 156.3 MB. Max. memory is 16.0 GB. [2021-06-10 20:52:36,353 INFO L168 Benchmark]: TraceAbstraction took 18642.31 ms. Allocated memory was 339.7 MB in the beginning and 792.7 MB in the end (delta: 453.0 MB). Free memory was 237.9 MB in the beginning and 484.6 MB in the end (delta: -246.7 MB). Peak memory consumption was 206.3 MB. Max. memory is 16.0 GB. [2021-06-10 20:52:36,354 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 339.7 MB. Free memory was 321.0 MB in the beginning and 320.9 MB in the end (delta: 125.9 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 530.03 ms. Allocated memory is still 339.7 MB. Free memory was 302.4 MB in the beginning and 298.8 MB in the end (delta: 3.6 MB). Peak memory consumption was 9.3 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 62.65 ms. Allocated memory is still 339.7 MB. Free memory was 298.8 MB in the beginning and 296.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 57.71 ms. Allocated memory is still 339.7 MB. Free memory was 296.7 MB in the beginning and 293.5 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. * RCFGBuilder took 1665.53 ms. Allocated memory is still 339.7 MB. Free memory was 293.5 MB in the beginning and 239.0 MB in the end (delta: 54.6 MB). Peak memory consumption was 156.3 MB. Max. memory is 16.0 GB. * TraceAbstraction took 18642.31 ms. Allocated memory was 339.7 MB in the beginning and 792.7 MB in the end (delta: 453.0 MB). Free memory was 237.9 MB in the beginning and 484.6 MB in the end (delta: -246.7 MB). Peak memory consumption was 206.3 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6682.2ms, 122 PlacesBefore, 46 PlacesAfterwards, 111 TransitionsBefore, 34 TransitionsAfterwards, 2630 CoEnabledTransitionPairs, 8 FixpointIterations, 39 TrivialSequentialCompositions, 52 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 1 ChoiceCompositions, 98 TotalNumberOfCompositions, 8174 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3003, positive: 2782, positive conditional: 0, positive unconditional: 2782, negative: 221, negative conditional: 0, negative unconditional: 221, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1764, positive: 1721, positive conditional: 0, positive unconditional: 1721, negative: 43, negative conditional: 0, negative unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1764, positive: 1721, positive conditional: 0, positive unconditional: 1721, negative: 43, negative conditional: 0, negative unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1764, positive: 1697, positive conditional: 0, positive unconditional: 1697, negative: 67, negative conditional: 0, negative unconditional: 67, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 67, positive: 24, positive conditional: 0, positive unconditional: 24, negative: 43, negative conditional: 0, negative unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 856, positive: 45, positive conditional: 0, positive unconditional: 45, negative: 811, negative conditional: 0, negative unconditional: 811, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3003, positive: 1061, positive conditional: 0, positive unconditional: 1061, negative: 178, negative conditional: 0, negative unconditional: 178, unknown: 1764, unknown conditional: 0, unknown unconditional: 1764] , Statistics on independence cache: Total cache size (in pairs): 3191, Positive cache size: 3148, Positive conditional cache size: 0, Positive unconditional cache size: 3148, Negative cache size: 43, Negative conditional cache size: 0, Negative unconditional cache size: 43 - CounterExampleResult [Line: 18]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L710] 0 int __unbuffered_cnt = 0; [L712] 0 int __unbuffered_p3_EAX = 0; [L714] 0 int __unbuffered_p3_EBX = 0; [L716] 0 int a = 0; [L717] 0 _Bool main$tmp_guard0; [L718] 0 _Bool main$tmp_guard1; [L720] 0 int x = 0; [L722] 0 int y = 0; [L723] 0 _Bool y$flush_delayed; [L724] 0 int y$mem_tmp; [L725] 0 _Bool y$r_buff0_thd0; [L726] 0 _Bool y$r_buff0_thd1; [L727] 0 _Bool y$r_buff0_thd2; [L728] 0 _Bool y$r_buff0_thd3; [L729] 0 _Bool y$r_buff0_thd4; [L730] 0 _Bool y$r_buff1_thd0; [L731] 0 _Bool y$r_buff1_thd1; [L732] 0 _Bool y$r_buff1_thd2; [L733] 0 _Bool y$r_buff1_thd3; [L734] 0 _Bool y$r_buff1_thd4; [L735] 0 _Bool y$read_delayed; [L736] 0 int *y$read_delayed_var; [L737] 0 int y$w_buff0; [L738] 0 _Bool y$w_buff0_used; [L739] 0 int y$w_buff1; [L740] 0 _Bool y$w_buff1_used; [L742] 0 int z = 0; [L743] 0 _Bool weak$$choice0; [L744] 0 _Bool weak$$choice2; [L844] 0 pthread_t t821; [L845] FCALL, FORK 0 pthread_create(&t821, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L846] 0 pthread_t t822; [L847] FCALL, FORK 0 pthread_create(&t822, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L848] 0 pthread_t t823; [L849] FCALL, FORK 0 pthread_create(&t823, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L850] 0 pthread_t t824; [L851] FCALL, FORK 0 pthread_create(&t824, ((void *)0), P3, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L783] 3 y$w_buff1 = y$w_buff0 [L784] 3 y$w_buff0 = 2 [L785] 3 y$w_buff1_used = y$w_buff0_used [L786] 3 y$w_buff0_used = (_Bool)1 [L18] COND FALSE 3 !(!expression) [L788] 3 y$r_buff1_thd0 = y$r_buff0_thd0 [L789] 3 y$r_buff1_thd1 = y$r_buff0_thd1 [L790] 3 y$r_buff1_thd2 = y$r_buff0_thd2 [L791] 3 y$r_buff1_thd3 = y$r_buff0_thd3 [L792] 3 y$r_buff1_thd4 = y$r_buff0_thd4 [L793] 3 y$r_buff0_thd3 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=0] [L796] 3 z = 1 VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L813] 4 z = 2 VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=2] [L816] 4 __unbuffered_p3_EAX = z VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=2] [L819] 4 __unbuffered_p3_EBX = a VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=2] [L748] 1 a = 1 VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=2] [L751] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=2] [L763] 2 x = 2 VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=2] [L766] 2 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=2] [L769] 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) [L769] EXPR 2 y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y [L769] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L769] 2 y = y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L770] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L770] 2 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L771] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L771] 2 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L772] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L772] 2 y$r_buff0_thd2 = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L773] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 [L773] 2 y$r_buff1_thd2 = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 [L799] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y) [L799] 3 y = y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y) [L800] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used [L800] 3 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used [L801] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$w_buff1_used [L801] 3 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$w_buff1_used [L802] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3 [L802] 3 y$r_buff0_thd3 = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3 [L803] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$r_buff1_thd3 [L803] 3 y$r_buff1_thd3 = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$r_buff1_thd3 [L822] EXPR 4 y$w_buff0_used && y$r_buff0_thd4 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd4 ? y$w_buff1 : y) [L822] EXPR 4 y$w_buff1_used && y$r_buff1_thd4 ? y$w_buff1 : y [L822] EXPR 4 y$w_buff0_used && y$r_buff0_thd4 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd4 ? y$w_buff1 : y) [L822] 4 y = y$w_buff0_used && y$r_buff0_thd4 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd4 ? y$w_buff1 : y) [L823] EXPR 4 y$w_buff0_used && y$r_buff0_thd4 ? (_Bool)0 : y$w_buff0_used [L823] 4 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd4 ? (_Bool)0 : y$w_buff0_used [L824] EXPR 4 y$w_buff0_used && y$r_buff0_thd4 || y$w_buff1_used && y$r_buff1_thd4 ? (_Bool)0 : y$w_buff1_used [L824] 4 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd4 || y$w_buff1_used && y$r_buff1_thd4 ? (_Bool)0 : y$w_buff1_used [L825] EXPR 4 y$w_buff0_used && y$r_buff0_thd4 ? (_Bool)0 : y$r_buff0_thd4 [L825] 4 y$r_buff0_thd4 = y$w_buff0_used && y$r_buff0_thd4 ? (_Bool)0 : y$r_buff0_thd4 [L826] EXPR 4 y$w_buff0_used && y$r_buff0_thd4 || y$w_buff1_used && y$r_buff1_thd4 ? (_Bool)0 : y$r_buff1_thd4 [L826] 4 y$r_buff1_thd4 = y$w_buff0_used && y$r_buff0_thd4 || y$w_buff1_used && y$r_buff1_thd4 ? (_Bool)0 : y$r_buff1_thd4 [L756] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L758] 1 return 0; [L776] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L778] 2 return 0; [L806] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L808] 3 return 0; [L829] 4 __unbuffered_cnt = __unbuffered_cnt + 1 [L831] 4 return 0; [L853] 0 main$tmp_guard0 = __unbuffered_cnt == 4 [L3] COND FALSE 0 !(!cond) [L857] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L857] EXPR 0 y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y [L857] 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) [L857] 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) [L858] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L858] 0 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L859] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L859] 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 [L860] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L860] 0 y$r_buff0_thd0 = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L861] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 [L861] 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 [L864] 0 weak$$choice0 = __VERIFIER_nondet_bool() [L865] 0 weak$$choice2 = __VERIFIER_nondet_bool() [L866] 0 y$flush_delayed = weak$$choice2 [L867] 0 y$mem_tmp = y [L868] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff1) [L868] 0 y = !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff1) [L869] EXPR 0 weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff0)) [L869] 0 y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff0)) [L870] EXPR 0 weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1)) [L870] 0 y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1)) [L871] EXPR 0 weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used)) [L871] 0 y$w_buff0_used = weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used)) [L872] EXPR 0 weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L872] 0 y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L873] EXPR 0 weak$$choice2 ? y$r_buff0_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff0_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0)) [L873] 0 y$r_buff0_thd0 = weak$$choice2 ? y$r_buff0_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff0_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0)) [L874] EXPR 0 weak$$choice2 ? y$r_buff1_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff1_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L874] 0 y$r_buff1_thd0 = weak$$choice2 ? y$r_buff1_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff1_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L875] 0 main$tmp_guard1 = !(x == 2 && y == 2 && z == 2 && __unbuffered_p3_EAX == 2 && __unbuffered_p3_EBX == 0) [L876] EXPR 0 y$flush_delayed ? y$mem_tmp : y [L876] 0 y = y$flush_delayed ? y$mem_tmp : y [L877] 0 y$flush_delayed = (_Bool)0 VAL [\result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=255, x=2, y=2, y$flush_delayed=0, y$mem_tmp=2, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=2] [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=255, x=2, y=2, y$flush_delayed=0, y$mem_tmp=2, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 114 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 2.6ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 18434.6ms, OverallIterations: 22, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 8399.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 6764.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 118 SDtfs, 120 SDslu, 130 SDs, 0 SdLazy, 1035 SolverSat, 276 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1358.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 142 GetRequests, 7 SyntacticMatches, 2 SemanticMatches, 133 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 2215.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=1296occurred in iteration=16, InterpolantAutomatonStates: 151, 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: 60.9ms SsaConstructionTime, 535.8ms SatisfiabilityAnalysisTime, 2369.5ms InterpolantComputationTime, 401 NumberOfCodeBlocks, 401 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 352 ConstructedInterpolants, 0 QuantifiedInterpolants, 4000 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 21 InterpolantComputations, 21 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...