/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/safe004_rmo.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-24 19:49:50,905 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-24 19:49:50,907 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-24 19:49:50,947 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-24 19:49:50,947 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-24 19:49:50,950 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-24 19:49:50,952 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-24 19:49:50,958 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-24 19:49:50,960 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-24 19:49:50,965 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-24 19:49:50,966 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-24 19:49:50,967 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-24 19:49:50,968 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-24 19:49:50,970 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-24 19:49:50,971 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-24 19:49:50,975 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-24 19:49:50,978 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-24 19:49:50,979 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-24 19:49:50,981 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-24 19:49:50,986 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-24 19:49:50,987 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-24 19:49:50,988 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-24 19:49:50,989 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-24 19:49:50,991 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-24 19:49:50,995 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-24 19:49:51,001 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-24 19:49:51,001 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-24 19:49:51,002 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-24 19:49:51,006 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf [2021-03-24 19:49:51,041 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-24 19:49:51,041 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-24 19:49:51,044 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-24 19:49:51,044 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-24 19:49:51,044 INFO L138 SettingsManager]: * Use SBE=true [2021-03-24 19:49:51,045 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-24 19:49:51,045 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-24 19:49:51,045 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-24 19:49:51,045 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-24 19:49:51,045 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-24 19:49:51,046 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-24 19:49:51,046 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-24 19:49:51,046 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-24 19:49:51,046 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-24 19:49:51,047 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-24 19:49:51,047 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-24 19:49:51,047 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-24 19:49:51,047 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-24 19:49:51,047 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-24 19:49:51,047 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-24 19:49:51,048 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-24 19:49:51,048 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-24 19:49:51,048 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-24 19:49:51,048 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-24 19:49:51,048 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-24 19:49:51,048 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-24 19:49:51,048 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-24 19:49:51,048 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-24 19:49:51,049 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-24 19:49:51,346 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-24 19:49:51,364 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-24 19:49:51,366 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-24 19:49:51,367 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-24 19:49:51,367 INFO L275 PluginConnector]: CDTParser initialized [2021-03-24 19:49:51,368 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe004_rmo.opt.i [2021-03-24 19:49:51,433 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c00591a7b/c7c519c1c55d4917a00d78ce9223c1a2/FLAG2d35da5e3 [2021-03-24 19:49:51,942 INFO L306 CDTParser]: Found 1 translation units. [2021-03-24 19:49:51,942 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe004_rmo.opt.i [2021-03-24 19:49:51,960 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c00591a7b/c7c519c1c55d4917a00d78ce9223c1a2/FLAG2d35da5e3 [2021-03-24 19:49:52,250 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c00591a7b/c7c519c1c55d4917a00d78ce9223c1a2 [2021-03-24 19:49:52,253 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-24 19:49:52,254 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-24 19:49:52,256 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-24 19:49:52,256 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-24 19:49:52,260 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-24 19:49:52,260 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.03 07:49:52" (1/1) ... [2021-03-24 19:49:52,261 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fb90642 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:49:52, skipping insertion in model container [2021-03-24 19:49:52,261 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.03 07:49:52" (1/1) ... [2021-03-24 19:49:52,282 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-24 19:49:52,335 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-24 19:49:52,464 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/safe004_rmo.opt.i[949,962] [2021-03-24 19:49:52,696 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-24 19:49:52,706 INFO L203 MainTranslator]: Completed pre-run [2021-03-24 19:49:52,716 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/safe004_rmo.opt.i[949,962] [2021-03-24 19:49:52,754 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-24 19:49:52,814 INFO L208 MainTranslator]: Completed translation [2021-03-24 19:49:52,814 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:49:52 WrapperNode [2021-03-24 19:49:52,815 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-24 19:49:52,816 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-24 19:49:52,816 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-24 19:49:52,817 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-24 19:49:52,823 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:49:52" (1/1) ... [2021-03-24 19:49:52,857 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:49:52" (1/1) ... [2021-03-24 19:49:52,894 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-24 19:49:52,895 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-24 19:49:52,895 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-24 19:49:52,895 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-24 19:49:52,906 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:49:52" (1/1) ... [2021-03-24 19:49:52,906 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:49:52" (1/1) ... [2021-03-24 19:49:52,924 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:49:52" (1/1) ... [2021-03-24 19:49:52,925 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:49:52" (1/1) ... [2021-03-24 19:49:52,932 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:49:52" (1/1) ... [2021-03-24 19:49:52,935 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:49:52" (1/1) ... [2021-03-24 19:49:52,938 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:49:52" (1/1) ... [2021-03-24 19:49:52,942 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-24 19:49:52,943 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-24 19:49:52,943 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-24 19:49:52,943 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-24 19:49:52,951 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:49:52" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-24 19:49:53,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-24 19:49:53,030 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-24 19:49:53,031 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-24 19:49:53,031 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-24 19:49:53,032 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-24 19:49:53,032 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-24 19:49:53,033 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-24 19:49:53,033 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-24 19:49:53,033 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-03-24 19:49:53,034 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-03-24 19:49:53,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-24 19:49:53,034 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-24 19:49:53,034 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-24 19:49:53,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-24 19:49:53,036 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-24 19:49:54,633 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-24 19:49:54,633 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-03-24 19:49:54,635 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.03 07:49:54 BoogieIcfgContainer [2021-03-24 19:49:54,635 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-24 19:49:54,636 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-24 19:49:54,636 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-24 19:49:54,638 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-24 19:49:54,639 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.03 07:49:52" (1/3) ... [2021-03-24 19:49:54,639 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f102ac5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.03 07:49:54, skipping insertion in model container [2021-03-24 19:49:54,639 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:49:52" (2/3) ... [2021-03-24 19:49:54,640 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f102ac5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.03 07:49:54, skipping insertion in model container [2021-03-24 19:49:54,640 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.03 07:49:54" (3/3) ... [2021-03-24 19:49:54,641 INFO L111 eAbstractionObserver]: Analyzing ICFG safe004_rmo.opt.i [2021-03-24 19:49:54,646 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-24 19:49:54,649 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-03-24 19:49:54,650 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-24 19:49:54,678 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:49:54,678 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:49:54,678 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:49:54,678 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:49:54,678 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:49:54,679 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:49:54,679 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:49:54,679 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:49:54,679 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:49:54,679 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:49:54,679 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:49:54,679 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:49:54,679 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:49:54,679 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:49:54,680 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:49:54,680 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:49:54,680 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:49:54,680 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:49:54,680 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:49:54,680 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:49:54,680 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:49:54,681 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:49:54,681 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:49:54,681 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:49:54,681 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:49:54,681 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:49:54,682 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:49:54,682 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:49:54,682 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:49:54,682 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:49:54,682 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:49:54,682 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:49:54,682 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:49:54,682 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:49:54,683 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:49:54,683 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:49:54,683 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:49:54,683 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:49:54,683 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:49:54,683 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:49:54,683 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:49:54,684 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:49:54,684 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:49:54,684 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:49:54,684 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:49:54,684 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:49:54,684 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:49:54,684 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:49:54,684 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:49:54,685 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:49:54,685 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:49:54,685 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:49:54,685 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:49:54,685 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:49:54,685 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:49:54,685 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:49:54,686 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:49:54,686 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:49:54,686 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:49:54,686 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:49:54,686 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:49:54,686 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:49:54,686 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:49:54,687 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:49:54,687 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:49:54,687 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:49:54,687 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:49:54,687 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:49:54,687 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:49:54,687 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:49:54,687 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:49:54,687 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:49:54,688 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:49:54,688 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:49:54,688 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:49:54,688 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:49:54,688 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:49:54,688 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:49:54,688 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:49:54,688 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:49:54,689 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:49:54,689 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:49:54,690 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:49:54,690 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:49:54,690 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:49:54,690 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:49:54,692 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:49:54,692 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:49:54,692 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:49:54,692 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:49:54,692 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:49:54,692 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:49:54,692 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:49:54,692 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:49:54,693 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:49:54,693 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:49:54,693 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:49:54,693 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:49:54,694 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:49:54,695 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:49:54,695 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:49:54,695 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:49:54,695 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:49:54,695 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:49:54,695 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:49:54,695 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:49:54,696 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:49:54,696 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:49:54,697 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:49:54,697 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:49:54,697 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:49:54,697 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:49:54,698 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:49:54,698 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:49:54,698 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:49:54,698 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:49:54,698 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:49:54,698 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:49:54,699 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-24 19:49:54,715 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-03-24 19:49:54,732 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-24 19:49:54,732 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-24 19:49:54,733 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-24 19:49:54,733 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-24 19:49:54,733 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-24 19:49:54,733 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-24 19:49:54,733 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-24 19:49:54,733 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-24 19:49:54,742 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 105 places, 97 transitions, 209 flow [2021-03-24 19:49:54,772 INFO L129 PetriNetUnfolder]: 2/94 cut-off events. [2021-03-24 19:49:54,772 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-24 19:49:54,776 INFO L84 FinitePrefix]: Finished finitePrefix Result has 104 conditions, 94 events. 2/94 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 71 event pairs, 0 based on Foata normal form. 0/90 useless extension candidates. Maximal degree in co-relation 61. Up to 2 conditions per place. [2021-03-24 19:49:54,776 INFO L82 GeneralOperation]: Start removeDead. Operand has 105 places, 97 transitions, 209 flow [2021-03-24 19:49:54,780 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 102 places, 94 transitions, 197 flow [2021-03-24 19:49:54,781 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-24 19:49:54,791 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 102 places, 94 transitions, 197 flow [2021-03-24 19:49:54,793 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 102 places, 94 transitions, 197 flow [2021-03-24 19:49:54,795 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 102 places, 94 transitions, 197 flow [2021-03-24 19:49:54,812 INFO L129 PetriNetUnfolder]: 2/94 cut-off events. [2021-03-24 19:49:54,812 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-24 19:49:54,812 INFO L84 FinitePrefix]: Finished finitePrefix Result has 104 conditions, 94 events. 2/94 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 70 event pairs, 0 based on Foata normal form. 0/90 useless extension candidates. Maximal degree in co-relation 61. Up to 2 conditions per place. [2021-03-24 19:49:54,815 INFO L142 LiptonReduction]: Number of co-enabled transitions 1686 [2021-03-24 19:49:56,744 WARN L205 SmtUtils]: Spent 733.00 ms on a formula simplification. DAG size of input: 228 DAG size of output: 188 [2021-03-24 19:49:57,383 WARN L205 SmtUtils]: Spent 636.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 185 [2021-03-24 19:49:58,637 WARN L205 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 312 DAG size of output: 268 [2021-03-24 19:49:59,217 WARN L205 SmtUtils]: Spent 578.00 ms on a formula simplification that was a NOOP. DAG size: 265 [2021-03-24 19:49:59,409 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 58 [2021-03-24 19:49:59,787 WARN L205 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 88 [2021-03-24 19:49:59,979 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2021-03-24 19:50:01,072 WARN L205 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2021-03-24 19:50:01,408 WARN L205 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2021-03-24 19:50:02,033 WARN L205 SmtUtils]: Spent 622.00 ms on a formula simplification that was a NOOP. DAG size: 267 [2021-03-24 19:50:02,643 WARN L205 SmtUtils]: Spent 608.00 ms on a formula simplification that was a NOOP. DAG size: 267 [2021-03-24 19:50:02,790 INFO L154 LiptonReduction]: Checked pairs total: 2882 [2021-03-24 19:50:02,790 INFO L156 LiptonReduction]: Total number of compositions: 64 [2021-03-24 19:50:02,792 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 8012 [2021-03-24 19:50:02,800 INFO L129 PetriNetUnfolder]: 0/18 cut-off events. [2021-03-24 19:50:02,800 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-24 19:50:02,801 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:50:02,801 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 19:50:02,801 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 19:50:02,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:50:02,805 INFO L82 PathProgramCache]: Analyzing trace with hash 788348067, now seen corresponding path program 1 times [2021-03-24 19:50:02,812 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:50:02,812 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531719322] [2021-03-24 19:50:02,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:50:02,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 19:50:03,062 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:50:03,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:50:03,064 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:50:03,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:50:03,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 19:50:03,077 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531719322] [2021-03-24 19:50:03,077 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 19:50:03,077 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-24 19:50:03,078 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373774880] [2021-03-24 19:50:03,086 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-24 19:50:03,087 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 19:50:03,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-24 19:50:03,098 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-24 19:50:03,100 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 161 [2021-03-24 19:50:03,105 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 39 transitions, 87 flow. Second operand has 3 states, 3 states have (on average 138.66666666666666) internal successors, (416), 3 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:50:03,105 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 19:50:03,105 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 161 [2021-03-24 19:50:03,106 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 19:50:03,223 INFO L129 PetriNetUnfolder]: 69/198 cut-off events. [2021-03-24 19:50:03,223 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-24 19:50:03,224 INFO L84 FinitePrefix]: Finished finitePrefix Result has 326 conditions, 198 events. 69/198 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 921 event pairs, 39 based on Foata normal form. 11/192 useless extension candidates. Maximal degree in co-relation 307. Up to 89 conditions per place. [2021-03-24 19:50:03,226 INFO L132 encePairwiseOnDemand]: 157/161 looper letters, 9 selfloop transitions, 2 changer transitions 5/41 dead transitions. [2021-03-24 19:50:03,226 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 41 transitions, 117 flow [2021-03-24 19:50:03,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-24 19:50:03,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-24 19:50:03,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 430 transitions. [2021-03-24 19:50:03,244 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8902691511387164 [2021-03-24 19:50:03,244 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 430 transitions. [2021-03-24 19:50:03,245 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 430 transitions. [2021-03-24 19:50:03,248 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 19:50:03,250 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 430 transitions. [2021-03-24 19:50:03,254 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 143.33333333333334) internal successors, (430), 3 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:50:03,265 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 161.0) internal successors, (644), 4 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:50:03,265 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 161.0) internal successors, (644), 4 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:50:03,267 INFO L185 Difference]: Start difference. First operand has 48 places, 39 transitions, 87 flow. Second operand 3 states and 430 transitions. [2021-03-24 19:50:03,268 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 41 transitions, 117 flow [2021-03-24 19:50:03,272 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 41 transitions, 114 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-03-24 19:50:03,273 INFO L241 Difference]: Finished difference. Result has 45 places, 32 transitions, 74 flow [2021-03-24 19:50:03,275 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=74, PETRI_PLACES=45, PETRI_TRANSITIONS=32} [2021-03-24 19:50:03,276 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, -3 predicate places. [2021-03-24 19:50:03,276 INFO L480 AbstractCegarLoop]: Abstraction has has 45 places, 32 transitions, 74 flow [2021-03-24 19:50:03,276 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 138.66666666666666) internal successors, (416), 3 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:50:03,276 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:50:03,276 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 19:50:03,277 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-24 19:50:03,277 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 19:50:03,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:50:03,278 INFO L82 PathProgramCache]: Analyzing trace with hash 1851944499, now seen corresponding path program 1 times [2021-03-24 19:50:03,278 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:50:03,278 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338329872] [2021-03-24 19:50:03,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:50:03,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 19:50:03,426 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:50:03,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:50:03,427 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:50:03,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:50:03,436 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-03-24 19:50:03,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 19:50:03,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 19:50:03,462 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338329872] [2021-03-24 19:50:03,462 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 19:50:03,462 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-24 19:50:03,464 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649458298] [2021-03-24 19:50:03,466 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-24 19:50:03,466 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 19:50:03,469 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-24 19:50:03,469 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-24 19:50:03,471 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 161 [2021-03-24 19:50:03,471 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 32 transitions, 74 flow. Second operand has 4 states, 4 states have (on average 136.75) internal successors, (547), 4 states have internal predecessors, (547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:50:03,472 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 19:50:03,472 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 161 [2021-03-24 19:50:03,472 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 19:50:03,542 INFO L129 PetriNetUnfolder]: 44/153 cut-off events. [2021-03-24 19:50:03,542 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-24 19:50:03,545 INFO L84 FinitePrefix]: Finished finitePrefix Result has 250 conditions, 153 events. 44/153 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 681 event pairs, 20 based on Foata normal form. 12/159 useless extension candidates. Maximal degree in co-relation 232. Up to 61 conditions per place. [2021-03-24 19:50:03,546 INFO L132 encePairwiseOnDemand]: 156/161 looper letters, 8 selfloop transitions, 3 changer transitions 9/45 dead transitions. [2021-03-24 19:50:03,546 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 45 transitions, 140 flow [2021-03-24 19:50:03,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-24 19:50:03,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-24 19:50:03,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 702 transitions. [2021-03-24 19:50:03,548 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8720496894409938 [2021-03-24 19:50:03,548 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 702 transitions. [2021-03-24 19:50:03,548 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 702 transitions. [2021-03-24 19:50:03,549 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 19:50:03,549 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 702 transitions. [2021-03-24 19:50:03,550 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 140.4) internal successors, (702), 5 states have internal predecessors, (702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:50:03,552 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 161.0) internal successors, (966), 6 states have internal predecessors, (966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:50:03,553 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 161.0) internal successors, (966), 6 states have internal predecessors, (966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:50:03,553 INFO L185 Difference]: Start difference. First operand has 45 places, 32 transitions, 74 flow. Second operand 5 states and 702 transitions. [2021-03-24 19:50:03,553 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 45 transitions, 140 flow [2021-03-24 19:50:03,554 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 45 transitions, 136 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-24 19:50:03,554 INFO L241 Difference]: Finished difference. Result has 46 places, 34 transitions, 97 flow [2021-03-24 19:50:03,555 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=97, PETRI_PLACES=46, PETRI_TRANSITIONS=34} [2021-03-24 19:50:03,555 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, -2 predicate places. [2021-03-24 19:50:03,555 INFO L480 AbstractCegarLoop]: Abstraction has has 46 places, 34 transitions, 97 flow [2021-03-24 19:50:03,556 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 136.75) internal successors, (547), 4 states have internal predecessors, (547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:50:03,556 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:50:03,556 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 19:50:03,556 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-24 19:50:03,556 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 19:50:03,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:50:03,557 INFO L82 PathProgramCache]: Analyzing trace with hash -256754635, now seen corresponding path program 1 times [2021-03-24 19:50:03,557 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:50:03,557 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007848212] [2021-03-24 19:50:03,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:50:03,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 19:50:03,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:50:03,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:50:03,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:50:03,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:50:03,643 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-03-24 19:50:03,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 19:50:03,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 19:50:03,648 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007848212] [2021-03-24 19:50:03,648 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 19:50:03,648 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-24 19:50:03,648 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894109695] [2021-03-24 19:50:03,649 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-24 19:50:03,649 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 19:50:03,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-24 19:50:03,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-24 19:50:03,652 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 161 [2021-03-24 19:50:03,653 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 34 transitions, 97 flow. Second operand has 4 states, 4 states have (on average 141.75) internal successors, (567), 4 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:50:03,653 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 19:50:03,653 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 161 [2021-03-24 19:50:03,653 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 19:50:03,687 INFO L129 PetriNetUnfolder]: 7/61 cut-off events. [2021-03-24 19:50:03,688 INFO L130 PetriNetUnfolder]: For 34/34 co-relation queries the response was YES. [2021-03-24 19:50:03,688 INFO L84 FinitePrefix]: Finished finitePrefix Result has 119 conditions, 61 events. 7/61 cut-off events. For 34/34 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 161 event pairs, 3 based on Foata normal form. 6/62 useless extension candidates. Maximal degree in co-relation 98. Up to 17 conditions per place. [2021-03-24 19:50:03,688 INFO L132 encePairwiseOnDemand]: 157/161 looper letters, 2 selfloop transitions, 2 changer transitions 2/36 dead transitions. [2021-03-24 19:50:03,689 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 36 transitions, 115 flow [2021-03-24 19:50:03,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-24 19:50:03,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-24 19:50:03,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 713 transitions. [2021-03-24 19:50:03,694 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8857142857142857 [2021-03-24 19:50:03,694 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 713 transitions. [2021-03-24 19:50:03,694 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 713 transitions. [2021-03-24 19:50:03,695 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 19:50:03,695 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 713 transitions. [2021-03-24 19:50:03,696 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 142.6) internal successors, (713), 5 states have internal predecessors, (713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:50:03,700 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 161.0) internal successors, (966), 6 states have internal predecessors, (966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:50:03,701 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 161.0) internal successors, (966), 6 states have internal predecessors, (966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:50:03,701 INFO L185 Difference]: Start difference. First operand has 46 places, 34 transitions, 97 flow. Second operand 5 states and 713 transitions. [2021-03-24 19:50:03,701 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 36 transitions, 115 flow [2021-03-24 19:50:03,702 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 36 transitions, 110 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-03-24 19:50:03,703 INFO L241 Difference]: Finished difference. Result has 49 places, 34 transitions, 104 flow [2021-03-24 19:50:03,703 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=104, PETRI_PLACES=49, PETRI_TRANSITIONS=34} [2021-03-24 19:50:03,704 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 1 predicate places. [2021-03-24 19:50:03,704 INFO L480 AbstractCegarLoop]: Abstraction has has 49 places, 34 transitions, 104 flow [2021-03-24 19:50:03,705 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 141.75) internal successors, (567), 4 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:50:03,705 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:50:03,705 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] [2021-03-24 19:50:03,705 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-24 19:50:03,705 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 19:50:03,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:50:03,706 INFO L82 PathProgramCache]: Analyzing trace with hash 1602197232, now seen corresponding path program 1 times [2021-03-24 19:50:03,706 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:50:03,706 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939205187] [2021-03-24 19:50:03,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:50:03,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 19:50:03,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:50:03,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:50:03,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:50:03,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:50:03,782 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:50:03,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:50:03,786 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-03-24 19:50:03,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 19:50:03,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 19:50:03,792 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939205187] [2021-03-24 19:50:03,792 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 19:50:03,792 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-24 19:50:03,792 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119204794] [2021-03-24 19:50:03,792 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-24 19:50:03,792 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 19:50:03,793 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-24 19:50:03,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-24 19:50:03,794 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 161 [2021-03-24 19:50:03,795 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 34 transitions, 104 flow. Second operand has 5 states, 5 states have (on average 134.2) internal successors, (671), 5 states have internal predecessors, (671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:50:03,795 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 19:50:03,795 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 161 [2021-03-24 19:50:03,795 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 19:50:03,875 INFO L129 PetriNetUnfolder]: 28/137 cut-off events. [2021-03-24 19:50:03,875 INFO L130 PetriNetUnfolder]: For 117/168 co-relation queries the response was YES. [2021-03-24 19:50:03,875 INFO L84 FinitePrefix]: Finished finitePrefix Result has 329 conditions, 137 events. 28/137 cut-off events. For 117/168 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 654 event pairs, 8 based on Foata normal form. 9/145 useless extension candidates. Maximal degree in co-relation 304. Up to 39 conditions per place. [2021-03-24 19:50:03,876 INFO L132 encePairwiseOnDemand]: 156/161 looper letters, 10 selfloop transitions, 3 changer transitions 9/46 dead transitions. [2021-03-24 19:50:03,876 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 46 transitions, 201 flow [2021-03-24 19:50:03,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-24 19:50:03,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-24 19:50:03,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 954 transitions. [2021-03-24 19:50:03,879 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8464951197870453 [2021-03-24 19:50:03,879 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 954 transitions. [2021-03-24 19:50:03,879 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 954 transitions. [2021-03-24 19:50:03,879 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 19:50:03,880 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 954 transitions. [2021-03-24 19:50:03,881 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 136.28571428571428) internal successors, (954), 7 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) [2021-03-24 19:50:03,884 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 161.0) internal successors, (1288), 8 states have internal predecessors, (1288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:50:03,884 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 161.0) internal successors, (1288), 8 states have internal predecessors, (1288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:50:03,884 INFO L185 Difference]: Start difference. First operand has 49 places, 34 transitions, 104 flow. Second operand 7 states and 954 transitions. [2021-03-24 19:50:03,885 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 46 transitions, 201 flow [2021-03-24 19:50:03,886 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 46 transitions, 187 flow, removed 4 selfloop flow, removed 4 redundant places. [2021-03-24 19:50:03,886 INFO L241 Difference]: Finished difference. Result has 54 places, 34 transitions, 115 flow [2021-03-24 19:50:03,887 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=115, PETRI_PLACES=54, PETRI_TRANSITIONS=34} [2021-03-24 19:50:03,887 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 6 predicate places. [2021-03-24 19:50:03,887 INFO L480 AbstractCegarLoop]: Abstraction has has 54 places, 34 transitions, 115 flow [2021-03-24 19:50:03,887 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 134.2) internal successors, (671), 5 states have internal predecessors, (671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:50:03,888 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:50:03,888 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] [2021-03-24 19:50:03,888 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-24 19:50:03,888 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 19:50:03,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:50:03,888 INFO L82 PathProgramCache]: Analyzing trace with hash 655564182, now seen corresponding path program 2 times [2021-03-24 19:50:03,888 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:50:03,889 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9825114] [2021-03-24 19:50:03,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:50:03,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 19:50:03,927 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:50:03,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:50:03,928 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:50:03,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:50:03,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:50:03,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:50:03,936 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-03-24 19:50:03,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 19:50:03,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 19:50:03,941 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9825114] [2021-03-24 19:50:03,941 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 19:50:03,941 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-24 19:50:03,941 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195182816] [2021-03-24 19:50:03,941 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-24 19:50:03,942 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 19:50:03,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-24 19:50:03,942 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-24 19:50:03,943 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 161 [2021-03-24 19:50:03,944 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 34 transitions, 115 flow. Second operand has 5 states, 5 states have (on average 134.2) internal successors, (671), 5 states have internal predecessors, (671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:50:03,944 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 19:50:03,944 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 161 [2021-03-24 19:50:03,944 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 19:50:03,996 INFO L129 PetriNetUnfolder]: 23/132 cut-off events. [2021-03-24 19:50:03,996 INFO L130 PetriNetUnfolder]: For 274/316 co-relation queries the response was YES. [2021-03-24 19:50:03,996 INFO L84 FinitePrefix]: Finished finitePrefix Result has 357 conditions, 132 events. 23/132 cut-off events. For 274/316 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 627 event pairs, 11 based on Foata normal form. 12/143 useless extension candidates. Maximal degree in co-relation 330. Up to 37 conditions per place. [2021-03-24 19:50:03,997 INFO L132 encePairwiseOnDemand]: 154/161 looper letters, 5 selfloop transitions, 5 changer transitions 8/42 dead transitions. [2021-03-24 19:50:03,997 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 42 transitions, 199 flow [2021-03-24 19:50:03,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-24 19:50:03,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-24 19:50:03,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 684 transitions. [2021-03-24 19:50:03,999 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8496894409937888 [2021-03-24 19:50:03,999 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 684 transitions. [2021-03-24 19:50:03,999 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 684 transitions. [2021-03-24 19:50:04,000 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 19:50:04,000 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 684 transitions. [2021-03-24 19:50:04,001 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 136.8) internal successors, (684), 5 states have internal predecessors, (684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:50:04,002 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 161.0) internal successors, (966), 6 states have internal predecessors, (966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:50:04,003 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 161.0) internal successors, (966), 6 states have internal predecessors, (966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:50:04,003 INFO L185 Difference]: Start difference. First operand has 54 places, 34 transitions, 115 flow. Second operand 5 states and 684 transitions. [2021-03-24 19:50:04,003 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 42 transitions, 199 flow [2021-03-24 19:50:04,005 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 42 transitions, 177 flow, removed 8 selfloop flow, removed 5 redundant places. [2021-03-24 19:50:04,005 INFO L241 Difference]: Finished difference. Result has 51 places, 34 transitions, 121 flow [2021-03-24 19:50:04,006 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=121, PETRI_PLACES=51, PETRI_TRANSITIONS=34} [2021-03-24 19:50:04,006 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 3 predicate places. [2021-03-24 19:50:04,006 INFO L480 AbstractCegarLoop]: Abstraction has has 51 places, 34 transitions, 121 flow [2021-03-24 19:50:04,006 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 134.2) internal successors, (671), 5 states have internal predecessors, (671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:50:04,006 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:50:04,006 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] [2021-03-24 19:50:04,006 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-24 19:50:04,007 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 19:50:04,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:50:04,007 INFO L82 PathProgramCache]: Analyzing trace with hash -1136717339, now seen corresponding path program 1 times [2021-03-24 19:50:04,007 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:50:04,007 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716239742] [2021-03-24 19:50:04,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:50:04,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 19:50:04,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:50:04,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:50:04,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:50:04,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:50:04,044 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-03-24 19:50:04,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 19:50:04,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 19:50:04,048 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716239742] [2021-03-24 19:50:04,048 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 19:50:04,048 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-24 19:50:04,048 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909822273] [2021-03-24 19:50:04,049 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-24 19:50:04,049 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 19:50:04,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-24 19:50:04,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-24 19:50:04,050 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 161 [2021-03-24 19:50:04,050 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 34 transitions, 121 flow. Second operand has 4 states, 4 states have (on average 142.75) internal successors, (571), 4 states have internal predecessors, (571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:50:04,051 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 19:50:04,051 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 161 [2021-03-24 19:50:04,051 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 19:50:04,076 INFO L129 PetriNetUnfolder]: 3/69 cut-off events. [2021-03-24 19:50:04,076 INFO L130 PetriNetUnfolder]: For 80/81 co-relation queries the response was YES. [2021-03-24 19:50:04,077 INFO L84 FinitePrefix]: Finished finitePrefix Result has 156 conditions, 69 events. 3/69 cut-off events. For 80/81 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 217 event pairs, 3 based on Foata normal form. 6/73 useless extension candidates. Maximal degree in co-relation 131. Up to 15 conditions per place. [2021-03-24 19:50:04,077 INFO L132 encePairwiseOnDemand]: 157/161 looper letters, 2 selfloop transitions, 2 changer transitions 3/36 dead transitions. [2021-03-24 19:50:04,077 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 36 transitions, 143 flow [2021-03-24 19:50:04,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-24 19:50:04,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-24 19:50:04,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 718 transitions. [2021-03-24 19:50:04,079 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8919254658385093 [2021-03-24 19:50:04,079 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 718 transitions. [2021-03-24 19:50:04,079 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 718 transitions. [2021-03-24 19:50:04,080 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 19:50:04,080 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 718 transitions. [2021-03-24 19:50:04,081 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 143.6) internal successors, (718), 5 states have internal predecessors, (718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:50:04,082 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 161.0) internal successors, (966), 6 states have internal predecessors, (966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:50:04,083 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 161.0) internal successors, (966), 6 states have internal predecessors, (966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:50:04,083 INFO L185 Difference]: Start difference. First operand has 51 places, 34 transitions, 121 flow. Second operand 5 states and 718 transitions. [2021-03-24 19:50:04,083 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 36 transitions, 143 flow [2021-03-24 19:50:04,084 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 36 transitions, 127 flow, removed 3 selfloop flow, removed 4 redundant places. [2021-03-24 19:50:04,085 INFO L241 Difference]: Finished difference. Result has 53 places, 33 transitions, 117 flow [2021-03-24 19:50:04,085 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=107, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=117, PETRI_PLACES=53, PETRI_TRANSITIONS=33} [2021-03-24 19:50:04,085 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 5 predicate places. [2021-03-24 19:50:04,085 INFO L480 AbstractCegarLoop]: Abstraction has has 53 places, 33 transitions, 117 flow [2021-03-24 19:50:04,085 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 142.75) internal successors, (571), 4 states have internal predecessors, (571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:50:04,085 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:50:04,085 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 19:50:04,086 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-24 19:50:04,086 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 19:50:04,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:50:04,086 INFO L82 PathProgramCache]: Analyzing trace with hash 2138785632, now seen corresponding path program 1 times [2021-03-24 19:50:04,086 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:50:04,086 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078091329] [2021-03-24 19:50:04,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:50:04,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 19:50:04,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:50:04,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:50:04,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:50:04,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:50:04,119 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-03-24 19:50:04,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 19:50:04,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 19:50:04,123 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078091329] [2021-03-24 19:50:04,123 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 19:50:04,123 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-24 19:50:04,124 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966073567] [2021-03-24 19:50:04,124 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-24 19:50:04,124 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 19:50:04,124 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-24 19:50:04,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-24 19:50:04,125 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 161 [2021-03-24 19:50:04,126 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 33 transitions, 117 flow. Second operand has 4 states, 4 states have (on average 137.5) internal successors, (550), 4 states have internal predecessors, (550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:50:04,126 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 19:50:04,126 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 161 [2021-03-24 19:50:04,126 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 19:50:04,155 INFO L129 PetriNetUnfolder]: 1/57 cut-off events. [2021-03-24 19:50:04,155 INFO L130 PetriNetUnfolder]: For 51/55 co-relation queries the response was YES. [2021-03-24 19:50:04,155 INFO L84 FinitePrefix]: Finished finitePrefix Result has 134 conditions, 57 events. 1/57 cut-off events. For 51/55 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 138 event pairs, 0 based on Foata normal form. 4/61 useless extension candidates. Maximal degree in co-relation 119. Up to 11 conditions per place. [2021-03-24 19:50:04,156 INFO L132 encePairwiseOnDemand]: 157/161 looper letters, 6 selfloop transitions, 2 changer transitions 4/36 dead transitions. [2021-03-24 19:50:04,156 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 36 transitions, 162 flow [2021-03-24 19:50:04,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-24 19:50:04,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-24 19:50:04,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 693 transitions. [2021-03-24 19:50:04,158 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8608695652173913 [2021-03-24 19:50:04,158 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 693 transitions. [2021-03-24 19:50:04,158 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 693 transitions. [2021-03-24 19:50:04,158 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 19:50:04,158 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 693 transitions. [2021-03-24 19:50:04,160 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 138.6) internal successors, (693), 5 states have internal predecessors, (693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:50:04,161 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 161.0) internal successors, (966), 6 states have internal predecessors, (966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:50:04,161 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 161.0) internal successors, (966), 6 states have internal predecessors, (966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:50:04,161 INFO L185 Difference]: Start difference. First operand has 53 places, 33 transitions, 117 flow. Second operand 5 states and 693 transitions. [2021-03-24 19:50:04,162 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 36 transitions, 162 flow [2021-03-24 19:50:04,162 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 36 transitions, 148 flow, removed 4 selfloop flow, removed 4 redundant places. [2021-03-24 19:50:04,163 INFO L241 Difference]: Finished difference. Result has 53 places, 31 transitions, 106 flow [2021-03-24 19:50:04,163 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=107, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=106, PETRI_PLACES=53, PETRI_TRANSITIONS=31} [2021-03-24 19:50:04,163 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 5 predicate places. [2021-03-24 19:50:04,164 INFO L480 AbstractCegarLoop]: Abstraction has has 53 places, 31 transitions, 106 flow [2021-03-24 19:50:04,164 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 137.5) internal successors, (550), 4 states have internal predecessors, (550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:50:04,164 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:50:04,164 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] [2021-03-24 19:50:04,164 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-24 19:50:04,164 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 19:50:04,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:50:04,165 INFO L82 PathProgramCache]: Analyzing trace with hash 1850946672, now seen corresponding path program 1 times [2021-03-24 19:50:04,165 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:50:04,165 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947733039] [2021-03-24 19:50:04,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:50:04,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 19:50:04,212 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:50:04,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:50:04,213 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:50:04,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:50:04,216 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:50:04,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 19:50:04,222 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:50:04,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 19:50:04,235 INFO L142 QuantifierPusher]: treesize reduction 10, result has 82.5 percent of original size [2021-03-24 19:50:04,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-24 19:50:04,256 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:50:04,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 19:50:04,268 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-03-24 19:50:04,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 19:50:04,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 19:50:04,273 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947733039] [2021-03-24 19:50:04,273 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 19:50:04,274 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-24 19:50:04,274 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616132351] [2021-03-24 19:50:04,274 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-24 19:50:04,274 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 19:50:04,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-24 19:50:04,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-03-24 19:50:04,276 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 161 [2021-03-24 19:50:04,277 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 31 transitions, 106 flow. Second operand has 8 states, 8 states have (on average 122.0) internal successors, (976), 8 states have internal predecessors, (976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:50:04,277 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 19:50:04,277 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 161 [2021-03-24 19:50:04,277 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 19:50:04,389 INFO L129 PetriNetUnfolder]: 81/196 cut-off events. [2021-03-24 19:50:04,389 INFO L130 PetriNetUnfolder]: For 252/263 co-relation queries the response was YES. [2021-03-24 19:50:04,390 INFO L84 FinitePrefix]: Finished finitePrefix Result has 462 conditions, 196 events. 81/196 cut-off events. For 252/263 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 740 event pairs, 26 based on Foata normal form. 13/206 useless extension candidates. Maximal degree in co-relation 432. Up to 124 conditions per place. [2021-03-24 19:50:04,391 INFO L132 encePairwiseOnDemand]: 151/161 looper letters, 9 selfloop transitions, 8 changer transitions 8/44 dead transitions. [2021-03-24 19:50:04,391 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 44 transitions, 190 flow [2021-03-24 19:50:04,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-24 19:50:04,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-24 19:50:04,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1116 transitions. [2021-03-24 19:50:04,394 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7701863354037267 [2021-03-24 19:50:04,394 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1116 transitions. [2021-03-24 19:50:04,394 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1116 transitions. [2021-03-24 19:50:04,395 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 19:50:04,395 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1116 transitions. [2021-03-24 19:50:04,397 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 124.0) internal successors, (1116), 9 states have internal predecessors, (1116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:50:04,399 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 161.0) internal successors, (1610), 10 states have internal predecessors, (1610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:50:04,399 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 161.0) internal successors, (1610), 10 states have internal predecessors, (1610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:50:04,399 INFO L185 Difference]: Start difference. First operand has 53 places, 31 transitions, 106 flow. Second operand 9 states and 1116 transitions. [2021-03-24 19:50:04,399 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 44 transitions, 190 flow [2021-03-24 19:50:04,400 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 44 transitions, 176 flow, removed 4 selfloop flow, removed 6 redundant places. [2021-03-24 19:50:04,401 INFO L241 Difference]: Finished difference. Result has 56 places, 34 transitions, 136 flow [2021-03-24 19:50:04,401 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=136, PETRI_PLACES=56, PETRI_TRANSITIONS=34} [2021-03-24 19:50:04,401 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 8 predicate places. [2021-03-24 19:50:04,402 INFO L480 AbstractCegarLoop]: Abstraction has has 56 places, 34 transitions, 136 flow [2021-03-24 19:50:04,402 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 122.0) internal successors, (976), 8 states have internal predecessors, (976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:50:04,402 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:50:04,402 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] [2021-03-24 19:50:04,402 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-24 19:50:04,402 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 19:50:04,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:50:04,403 INFO L82 PathProgramCache]: Analyzing trace with hash 362010387, now seen corresponding path program 1 times [2021-03-24 19:50:04,403 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:50:04,403 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148928295] [2021-03-24 19:50:04,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:50:04,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 19:50:04,434 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:50:04,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:50:04,435 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:50:04,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:50:04,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:50:04,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:50:04,444 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-03-24 19:50:04,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 19:50:04,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 19:50:04,449 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148928295] [2021-03-24 19:50:04,449 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 19:50:04,450 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-24 19:50:04,450 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980132188] [2021-03-24 19:50:04,450 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-24 19:50:04,450 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 19:50:04,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-24 19:50:04,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-24 19:50:04,451 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 161 [2021-03-24 19:50:04,452 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 34 transitions, 136 flow. Second operand has 5 states, 5 states have (on average 134.6) internal successors, (673), 5 states have internal predecessors, (673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:50:04,452 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 19:50:04,452 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 161 [2021-03-24 19:50:04,452 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 19:50:04,499 INFO L129 PetriNetUnfolder]: 38/126 cut-off events. [2021-03-24 19:50:04,499 INFO L130 PetriNetUnfolder]: For 273/276 co-relation queries the response was YES. [2021-03-24 19:50:04,500 INFO L84 FinitePrefix]: Finished finitePrefix Result has 381 conditions, 126 events. 38/126 cut-off events. For 273/276 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 484 event pairs, 17 based on Foata normal form. 10/134 useless extension candidates. Maximal degree in co-relation 351. Up to 68 conditions per place. [2021-03-24 19:50:04,500 INFO L132 encePairwiseOnDemand]: 157/161 looper letters, 7 selfloop transitions, 1 changer transitions 2/36 dead transitions. [2021-03-24 19:50:04,500 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 36 transitions, 171 flow [2021-03-24 19:50:04,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-24 19:50:04,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-24 19:50:04,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 676 transitions. [2021-03-24 19:50:04,502 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8397515527950311 [2021-03-24 19:50:04,503 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 676 transitions. [2021-03-24 19:50:04,503 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 676 transitions. [2021-03-24 19:50:04,503 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 19:50:04,503 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 676 transitions. [2021-03-24 19:50:04,504 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 135.2) internal successors, (676), 5 states have internal predecessors, (676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:50:04,506 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 161.0) internal successors, (966), 6 states have internal predecessors, (966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:50:04,506 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 161.0) internal successors, (966), 6 states have internal predecessors, (966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:50:04,506 INFO L185 Difference]: Start difference. First operand has 56 places, 34 transitions, 136 flow. Second operand 5 states and 676 transitions. [2021-03-24 19:50:04,506 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 36 transitions, 171 flow [2021-03-24 19:50:04,507 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 36 transitions, 151 flow, removed 3 selfloop flow, removed 7 redundant places. [2021-03-24 19:50:04,508 INFO L241 Difference]: Finished difference. Result has 54 places, 34 transitions, 127 flow [2021-03-24 19:50:04,508 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=127, PETRI_PLACES=54, PETRI_TRANSITIONS=34} [2021-03-24 19:50:04,508 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 6 predicate places. [2021-03-24 19:50:04,508 INFO L480 AbstractCegarLoop]: Abstraction has has 54 places, 34 transitions, 127 flow [2021-03-24 19:50:04,509 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 134.6) internal successors, (673), 5 states have internal predecessors, (673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:50:04,509 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:50:04,509 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] [2021-03-24 19:50:04,509 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-24 19:50:04,509 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 19:50:04,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:50:04,510 INFO L82 PathProgramCache]: Analyzing trace with hash -1916392401, now seen corresponding path program 2 times [2021-03-24 19:50:04,510 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:50:04,510 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007569781] [2021-03-24 19:50:04,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:50:04,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 19:50:04,552 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:50:04,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:50:04,552 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:50:04,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:50:04,556 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-24 19:50:04,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 19:50:04,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:50:04,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:50:04,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 19:50:04,564 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007569781] [2021-03-24 19:50:04,564 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 19:50:04,564 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-24 19:50:04,564 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407252725] [2021-03-24 19:50:04,564 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-24 19:50:04,564 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 19:50:04,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-24 19:50:04,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-24 19:50:04,565 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 161 [2021-03-24 19:50:04,566 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 34 transitions, 127 flow. Second operand has 4 states, 4 states have (on average 133.75) internal successors, (535), 4 states have internal predecessors, (535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:50:04,566 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 19:50:04,566 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 161 [2021-03-24 19:50:04,566 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 19:50:04,616 INFO L129 PetriNetUnfolder]: 89/240 cut-off events. [2021-03-24 19:50:04,616 INFO L130 PetriNetUnfolder]: For 219/225 co-relation queries the response was YES. [2021-03-24 19:50:04,617 INFO L84 FinitePrefix]: Finished finitePrefix Result has 604 conditions, 240 events. 89/240 cut-off events. For 219/225 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 1150 event pairs, 40 based on Foata normal form. 20/249 useless extension candidates. Maximal degree in co-relation 578. Up to 108 conditions per place. [2021-03-24 19:50:04,618 INFO L132 encePairwiseOnDemand]: 155/161 looper letters, 8 selfloop transitions, 8 changer transitions 0/44 dead transitions. [2021-03-24 19:50:04,618 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 44 transitions, 179 flow [2021-03-24 19:50:04,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-24 19:50:04,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-24 19:50:04,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 683 transitions. [2021-03-24 19:50:04,620 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8484472049689441 [2021-03-24 19:50:04,620 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 683 transitions. [2021-03-24 19:50:04,620 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 683 transitions. [2021-03-24 19:50:04,620 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 19:50:04,620 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 683 transitions. [2021-03-24 19:50:04,622 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 136.6) internal successors, (683), 5 states have internal predecessors, (683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:50:04,623 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 161.0) internal successors, (966), 6 states have internal predecessors, (966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:50:04,623 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 161.0) internal successors, (966), 6 states have internal predecessors, (966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:50:04,623 INFO L185 Difference]: Start difference. First operand has 54 places, 34 transitions, 127 flow. Second operand 5 states and 683 transitions. [2021-03-24 19:50:04,623 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 44 transitions, 179 flow [2021-03-24 19:50:04,625 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 44 transitions, 174 flow, removed 2 selfloop flow, removed 3 redundant places. [2021-03-24 19:50:04,625 INFO L241 Difference]: Finished difference. Result has 56 places, 41 transitions, 182 flow [2021-03-24 19:50:04,626 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=182, PETRI_PLACES=56, PETRI_TRANSITIONS=41} [2021-03-24 19:50:04,626 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 8 predicate places. [2021-03-24 19:50:04,626 INFO L480 AbstractCegarLoop]: Abstraction has has 56 places, 41 transitions, 182 flow [2021-03-24 19:50:04,626 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 133.75) internal successors, (535), 4 states have internal predecessors, (535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:50:04,626 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:50:04,626 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] [2021-03-24 19:50:04,626 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-24 19:50:04,627 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 19:50:04,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:50:04,627 INFO L82 PathProgramCache]: Analyzing trace with hash -1613823864, now seen corresponding path program 1 times [2021-03-24 19:50:04,627 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:50:04,627 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831675121] [2021-03-24 19:50:04,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:50:04,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 19:50:04,669 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:50:04,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:50:04,670 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:50:04,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:50:04,673 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:50:04,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:50:04,678 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-24 19:50:04,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 19:50:04,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:50:04,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:50:04,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 19:50:04,686 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831675121] [2021-03-24 19:50:04,686 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 19:50:04,686 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-24 19:50:04,686 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871236888] [2021-03-24 19:50:04,686 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-24 19:50:04,686 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 19:50:04,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-24 19:50:04,687 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-24 19:50:04,687 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 161 [2021-03-24 19:50:04,688 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 41 transitions, 182 flow. Second operand has 5 states, 5 states have (on average 133.8) internal successors, (669), 5 states have internal predecessors, (669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:50:04,688 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 19:50:04,688 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 161 [2021-03-24 19:50:04,688 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 19:50:04,752 INFO L129 PetriNetUnfolder]: 46/173 cut-off events. [2021-03-24 19:50:04,752 INFO L130 PetriNetUnfolder]: For 252/395 co-relation queries the response was YES. [2021-03-24 19:50:04,753 INFO L84 FinitePrefix]: Finished finitePrefix Result has 588 conditions, 173 events. 46/173 cut-off events. For 252/395 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 785 event pairs, 7 based on Foata normal form. 85/252 useless extension candidates. Maximal degree in co-relation 560. Up to 90 conditions per place. [2021-03-24 19:50:04,753 INFO L132 encePairwiseOnDemand]: 155/161 looper letters, 5 selfloop transitions, 15 changer transitions 3/51 dead transitions. [2021-03-24 19:50:04,753 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 51 transitions, 286 flow [2021-03-24 19:50:04,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-24 19:50:04,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-24 19:50:04,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 956 transitions. [2021-03-24 19:50:04,756 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8482697426796806 [2021-03-24 19:50:04,756 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 956 transitions. [2021-03-24 19:50:04,756 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 956 transitions. [2021-03-24 19:50:04,757 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 19:50:04,757 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 956 transitions. [2021-03-24 19:50:04,759 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 136.57142857142858) internal successors, (956), 7 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) [2021-03-24 19:50:04,760 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 161.0) internal successors, (1288), 8 states have internal predecessors, (1288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:50:04,761 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 161.0) internal successors, (1288), 8 states have internal predecessors, (1288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:50:04,761 INFO L185 Difference]: Start difference. First operand has 56 places, 41 transitions, 182 flow. Second operand 7 states and 956 transitions. [2021-03-24 19:50:04,761 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 51 transitions, 286 flow [2021-03-24 19:50:04,762 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 51 transitions, 282 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-24 19:50:04,763 INFO L241 Difference]: Finished difference. Result has 64 places, 48 transitions, 277 flow [2021-03-24 19:50:04,763 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=178, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=277, PETRI_PLACES=64, PETRI_TRANSITIONS=48} [2021-03-24 19:50:04,763 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 16 predicate places. [2021-03-24 19:50:04,764 INFO L480 AbstractCegarLoop]: Abstraction has has 64 places, 48 transitions, 277 flow [2021-03-24 19:50:04,764 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 133.8) internal successors, (669), 5 states have internal predecessors, (669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:50:04,764 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:50:04,764 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] [2021-03-24 19:50:04,764 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-03-24 19:50:04,764 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 19:50:04,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:50:04,765 INFO L82 PathProgramCache]: Analyzing trace with hash 974334014, now seen corresponding path program 1 times [2021-03-24 19:50:04,765 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:50:04,765 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109151458] [2021-03-24 19:50:04,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:50:04,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 19:50:04,880 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:50:04,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:50:04,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:50:04,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:50:04,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:50:04,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:50:04,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:50:04,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:50:04,896 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-24 19:50:04,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 19:50:04,905 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:50:04,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:50:04,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 19:50:04,908 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109151458] [2021-03-24 19:50:04,908 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 19:50:04,908 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-24 19:50:04,908 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724884480] [2021-03-24 19:50:04,909 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-24 19:50:04,909 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 19:50:04,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-24 19:50:04,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-24 19:50:04,911 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 161 [2021-03-24 19:50:04,911 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 48 transitions, 277 flow. Second operand has 6 states, 6 states have (on average 133.83333333333334) internal successors, (803), 6 states have internal predecessors, (803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:50:04,911 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 19:50:04,911 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 161 [2021-03-24 19:50:04,912 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 19:50:04,995 INFO L129 PetriNetUnfolder]: 32/140 cut-off events. [2021-03-24 19:50:04,995 INFO L130 PetriNetUnfolder]: For 608/851 co-relation queries the response was YES. [2021-03-24 19:50:04,995 INFO L84 FinitePrefix]: Finished finitePrefix Result has 605 conditions, 140 events. 32/140 cut-off events. For 608/851 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 647 event pairs, 1 based on Foata normal form. 84/219 useless extension candidates. Maximal degree in co-relation 573. Up to 80 conditions per place. [2021-03-24 19:50:04,996 INFO L132 encePairwiseOnDemand]: 155/161 looper letters, 2 selfloop transitions, 19 changer transitions 3/52 dead transitions. [2021-03-24 19:50:04,996 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 52 transitions, 355 flow [2021-03-24 19:50:04,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-24 19:50:04,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-24 19:50:04,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1223 transitions. [2021-03-24 19:50:04,999 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8440303657694962 [2021-03-24 19:50:04,999 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1223 transitions. [2021-03-24 19:50:04,999 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1223 transitions. [2021-03-24 19:50:05,000 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 19:50:05,000 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1223 transitions. [2021-03-24 19:50:05,002 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 135.88888888888889) internal successors, (1223), 9 states have internal predecessors, (1223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:50:05,005 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 161.0) internal successors, (1610), 10 states have internal predecessors, (1610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:50:05,005 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 161.0) internal successors, (1610), 10 states have internal predecessors, (1610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:50:05,005 INFO L185 Difference]: Start difference. First operand has 64 places, 48 transitions, 277 flow. Second operand 9 states and 1223 transitions. [2021-03-24 19:50:05,005 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 52 transitions, 355 flow [2021-03-24 19:50:05,008 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 52 transitions, 304 flow, removed 18 selfloop flow, removed 5 redundant places. [2021-03-24 19:50:05,009 INFO L241 Difference]: Finished difference. Result has 70 places, 49 transitions, 287 flow [2021-03-24 19:50:05,009 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=226, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=287, PETRI_PLACES=70, PETRI_TRANSITIONS=49} [2021-03-24 19:50:05,009 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 22 predicate places. [2021-03-24 19:50:05,009 INFO L480 AbstractCegarLoop]: Abstraction has has 70 places, 49 transitions, 287 flow [2021-03-24 19:50:05,009 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 133.83333333333334) internal successors, (803), 6 states have internal predecessors, (803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:50:05,010 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:50:05,010 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, 1, 1, 1] [2021-03-24 19:50:05,010 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-03-24 19:50:05,010 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 19:50:05,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:50:05,010 INFO L82 PathProgramCache]: Analyzing trace with hash 1521034354, now seen corresponding path program 1 times [2021-03-24 19:50:05,012 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:50:05,013 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467879731] [2021-03-24 19:50:05,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:50:05,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 19:50:05,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:50:05,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:50:05,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:50:05,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:50:05,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:50:05,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 19:50:05,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:50:05,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 19:50:05,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:50:05,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 19:50:05,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:50:05,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 19:50:05,156 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:50:05,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-24 19:50:05,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:50:05,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 19:50:05,188 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:50:05,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 19:50:05,206 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:50:05,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 19:50:05,218 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-03-24 19:50:05,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 19:50:05,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 19:50:05,225 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467879731] [2021-03-24 19:50:05,225 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 19:50:05,225 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-24 19:50:05,225 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055856366] [2021-03-24 19:50:05,225 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-24 19:50:05,225 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 19:50:05,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-24 19:50:05,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2021-03-24 19:50:05,228 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 161 [2021-03-24 19:50:05,229 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 49 transitions, 287 flow. Second operand has 11 states, 11 states have (on average 120.27272727272727) internal successors, (1323), 11 states have internal predecessors, (1323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:50:05,229 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 19:50:05,229 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 161 [2021-03-24 19:50:05,229 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 19:50:05,390 INFO L129 PetriNetUnfolder]: 58/238 cut-off events. [2021-03-24 19:50:05,390 INFO L130 PetriNetUnfolder]: For 1163/1272 co-relation queries the response was YES. [2021-03-24 19:50:05,391 INFO L84 FinitePrefix]: Finished finitePrefix Result has 945 conditions, 238 events. 58/238 cut-off events. For 1163/1272 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 1456 event pairs, 0 based on Foata normal form. 30/256 useless extension candidates. Maximal degree in co-relation 907. Up to 70 conditions per place. [2021-03-24 19:50:05,392 INFO L132 encePairwiseOnDemand]: 149/161 looper letters, 9 selfloop transitions, 12 changer transitions 4/57 dead transitions. [2021-03-24 19:50:05,392 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 57 transitions, 381 flow [2021-03-24 19:50:05,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-24 19:50:05,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-24 19:50:05,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1332 transitions. [2021-03-24 19:50:05,395 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7521174477696216 [2021-03-24 19:50:05,395 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1332 transitions. [2021-03-24 19:50:05,395 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1332 transitions. [2021-03-24 19:50:05,396 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 19:50:05,396 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1332 transitions. [2021-03-24 19:50:05,398 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 121.0909090909091) internal successors, (1332), 11 states have internal predecessors, (1332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:50:05,401 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 161.0) internal successors, (1932), 12 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:50:05,401 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 161.0) internal successors, (1932), 12 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:50:05,401 INFO L185 Difference]: Start difference. First operand has 70 places, 49 transitions, 287 flow. Second operand 11 states and 1332 transitions. [2021-03-24 19:50:05,401 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 57 transitions, 381 flow [2021-03-24 19:50:05,406 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 57 transitions, 303 flow, removed 22 selfloop flow, removed 9 redundant places. [2021-03-24 19:50:05,407 INFO L241 Difference]: Finished difference. Result has 73 places, 51 transitions, 267 flow [2021-03-24 19:50:05,407 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=221, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=267, PETRI_PLACES=73, PETRI_TRANSITIONS=51} [2021-03-24 19:50:05,408 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 25 predicate places. [2021-03-24 19:50:05,408 INFO L480 AbstractCegarLoop]: Abstraction has has 73 places, 51 transitions, 267 flow [2021-03-24 19:50:05,408 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 120.27272727272727) internal successors, (1323), 11 states have internal predecessors, (1323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:50:05,408 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:50:05,408 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, 1, 1, 1] [2021-03-24 19:50:05,408 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-03-24 19:50:05,408 INFO L428 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 19:50:05,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:50:05,409 INFO L82 PathProgramCache]: Analyzing trace with hash -2054381180, now seen corresponding path program 2 times [2021-03-24 19:50:05,409 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:50:05,409 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235743685] [2021-03-24 19:50:05,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:50:05,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-24 19:50:05,444 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-24 19:50:05,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-24 19:50:05,482 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-24 19:50:05,509 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-24 19:50:05,509 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-24 19:50:05,509 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-03-24 19:50:05,589 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.03 07:50:05 BasicIcfg [2021-03-24 19:50:05,589 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-24 19:50:05,590 INFO L168 Benchmark]: Toolchain (without parser) took 13335.76 ms. Allocated memory was 350.2 MB in the beginning and 566.2 MB in the end (delta: 216.0 MB). Free memory was 313.0 MB in the beginning and 377.2 MB in the end (delta: -64.1 MB). Peak memory consumption was 153.3 MB. Max. memory is 16.0 GB. [2021-03-24 19:50:05,590 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 350.2 MB. Free memory was 331.5 MB in the beginning and 331.4 MB in the end (delta: 76.2 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-24 19:50:05,591 INFO L168 Benchmark]: CACSL2BoogieTranslator took 559.09 ms. Allocated memory is still 350.2 MB. Free memory was 312.9 MB in the beginning and 308.9 MB in the end (delta: 3.9 MB). Peak memory consumption was 7.5 MB. Max. memory is 16.0 GB. [2021-03-24 19:50:05,591 INFO L168 Benchmark]: Boogie Procedure Inliner took 78.74 ms. Allocated memory is still 350.2 MB. Free memory was 308.9 MB in the beginning and 305.8 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-24 19:50:05,591 INFO L168 Benchmark]: Boogie Preprocessor took 47.34 ms. Allocated memory is still 350.2 MB. Free memory was 305.8 MB in the beginning and 303.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-24 19:50:05,591 INFO L168 Benchmark]: RCFGBuilder took 1692.16 ms. Allocated memory is still 350.2 MB. Free memory was 303.7 MB in the beginning and 253.7 MB in the end (delta: 50.1 MB). Peak memory consumption was 161.2 MB. Max. memory is 16.0 GB. [2021-03-24 19:50:05,592 INFO L168 Benchmark]: TraceAbstraction took 10953.23 ms. Allocated memory was 350.2 MB in the beginning and 566.2 MB in the end (delta: 216.0 MB). Free memory was 252.6 MB in the beginning and 377.2 MB in the end (delta: -124.6 MB). Peak memory consumption was 91.5 MB. Max. memory is 16.0 GB. [2021-03-24 19:50:05,593 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 350.2 MB. Free memory was 331.5 MB in the beginning and 331.4 MB in the end (delta: 76.2 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 559.09 ms. Allocated memory is still 350.2 MB. Free memory was 312.9 MB in the beginning and 308.9 MB in the end (delta: 3.9 MB). Peak memory consumption was 7.5 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 78.74 ms. Allocated memory is still 350.2 MB. Free memory was 308.9 MB in the beginning and 305.8 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 47.34 ms. Allocated memory is still 350.2 MB. Free memory was 305.8 MB in the beginning and 303.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 1692.16 ms. Allocated memory is still 350.2 MB. Free memory was 303.7 MB in the beginning and 253.7 MB in the end (delta: 50.1 MB). Peak memory consumption was 161.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 10953.23 ms. Allocated memory was 350.2 MB in the beginning and 566.2 MB in the end (delta: 216.0 MB). Free memory was 252.6 MB in the beginning and 377.2 MB in the end (delta: -124.6 MB). Peak memory consumption was 91.5 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7997.1ms, 102 PlacesBefore, 48 PlacesAfterwards, 94 TransitionsBefore, 39 TransitionsAfterwards, 1686 CoEnabledTransitionPairs, 4 FixpointIterations, 26 TrivialSequentialCompositions, 33 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 1 ChoiceCompositions, 64 TotalNumberOfCompositions, 2882 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1370, positive: 1298, positive conditional: 0, positive unconditional: 1298, negative: 72, negative conditional: 0, negative unconditional: 72, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1026, positive: 992, positive conditional: 0, positive unconditional: 992, negative: 34, negative conditional: 0, negative unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1026, positive: 992, positive conditional: 0, positive unconditional: 992, negative: 34, negative conditional: 0, negative unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1026, positive: 986, positive conditional: 0, positive unconditional: 986, negative: 40, negative conditional: 0, negative unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 40, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 34, negative conditional: 0, negative unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 562, positive: 18, positive conditional: 0, positive unconditional: 18, negative: 543, negative conditional: 0, negative unconditional: 543, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1370, positive: 306, positive conditional: 0, positive unconditional: 306, negative: 38, negative conditional: 0, negative unconditional: 38, unknown: 1026, unknown conditional: 0, unknown unconditional: 1026] , Statistics on independence cache: Total cache size (in pairs): 128, Positive cache size: 110, Positive conditional cache size: 0, Positive unconditional cache size: 110, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18 - CounterExampleResult [Line: 18]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L709] 0 int __unbuffered_cnt = 0; [L711] 0 int __unbuffered_p2_EAX = 0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0] [L713] 0 int __unbuffered_p2_EBX = 0; [L714] 0 _Bool main$tmp_guard0; [L715] 0 _Bool main$tmp_guard1; [L717] 0 int x = 0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0] [L718] 0 _Bool x$flush_delayed; [L719] 0 int x$mem_tmp; [L720] 0 _Bool x$r_buff0_thd0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0] [L721] 0 _Bool x$r_buff0_thd1; [L722] 0 _Bool x$r_buff0_thd2; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0] [L723] 0 _Bool x$r_buff0_thd3; [L724] 0 _Bool x$r_buff1_thd0; [L725] 0 _Bool x$r_buff1_thd1; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0] [L726] 0 _Bool x$r_buff1_thd2; [L727] 0 _Bool x$r_buff1_thd3; [L728] 0 _Bool x$read_delayed; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0] [L729] 0 int *x$read_delayed_var; [L730] 0 int x$w_buff0; [L731] 0 _Bool x$w_buff0_used; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0] [L732] 0 int x$w_buff1; [L733] 0 _Bool x$w_buff1_used; [L735] 0 int y = 0; [L736] 0 _Bool weak$$choice0; [L737] 0 _Bool weak$$choice2; [L818] 0 pthread_t t1888; [L819] FCALL, FORK 0 pthread_create(&t1888, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0] [L820] 0 pthread_t t1889; [L821] FCALL, FORK 0 pthread_create(&t1889, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0] [L761] 2 x$w_buff1 = x$w_buff0 [L762] 2 x$w_buff0 = 2 [L763] 2 x$w_buff1_used = x$w_buff0_used [L764] 2 x$w_buff0_used = (_Bool)1 [L18] COND FALSE 2 !(!expression) [L766] 2 x$r_buff1_thd0 = x$r_buff0_thd0 [L767] 2 x$r_buff1_thd1 = x$r_buff0_thd1 [L768] 2 x$r_buff1_thd2 = x$r_buff0_thd2 [L769] 2 x$r_buff1_thd3 = x$r_buff0_thd3 [L770] 2 x$r_buff0_thd2 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=0] [L773] 2 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1] [L822] 0 pthread_t t1890; [L823] FCALL, FORK 0 pthread_create(&t1890, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1] [L790] 3 __unbuffered_p2_EAX = y VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=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, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1] [L793] 3 __unbuffered_p2_EBX = y VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=1, 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, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1] [L796] EXPR 3 x$w_buff0_used && x$r_buff0_thd3 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd3 ? x$w_buff1 : x) [L796] EXPR 3 x$w_buff1_used && x$r_buff1_thd3 ? x$w_buff1 : x [L796] EXPR 3 x$w_buff0_used && x$r_buff0_thd3 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd3 ? x$w_buff1 : x) [L796] 3 x = x$w_buff0_used && x$r_buff0_thd3 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd3 ? x$w_buff1 : x) [L797] EXPR 3 x$w_buff0_used && x$r_buff0_thd3 ? (_Bool)0 : x$w_buff0_used [L797] 3 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd3 ? (_Bool)0 : x$w_buff0_used [L798] EXPR 3 x$w_buff0_used && x$r_buff0_thd3 || x$w_buff1_used && x$r_buff1_thd3 ? (_Bool)0 : x$w_buff1_used [L798] 3 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd3 || x$w_buff1_used && x$r_buff1_thd3 ? (_Bool)0 : x$w_buff1_used [L799] EXPR 3 x$w_buff0_used && x$r_buff0_thd3 ? (_Bool)0 : x$r_buff0_thd3 [L799] 3 x$r_buff0_thd3 = x$w_buff0_used && x$r_buff0_thd3 ? (_Bool)0 : x$r_buff0_thd3 [L800] EXPR 3 x$w_buff0_used && x$r_buff0_thd3 || x$w_buff1_used && x$r_buff1_thd3 ? (_Bool)0 : x$r_buff1_thd3 [L800] 3 x$r_buff1_thd3 = x$w_buff0_used && x$r_buff0_thd3 || x$w_buff1_used && x$r_buff1_thd3 ? (_Bool)0 : x$r_buff1_thd3 [L741] 1 y = 2 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=2] [L744] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=2] [L776] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd2 ? x$w_buff1 : x) [L776] 2 x = x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd2 ? x$w_buff1 : x) [L777] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$w_buff0_used [L777] 2 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$w_buff0_used [L778] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$w_buff1_used [L778] 2 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$w_buff1_used [L779] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$r_buff0_thd2 [L779] 2 x$r_buff0_thd2 = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$r_buff0_thd2 [L780] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$r_buff1_thd2 [L780] 2 x$r_buff1_thd2 = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$r_buff1_thd2 [L747] EXPR 1 x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd1 ? x$w_buff1 : x) [L747] EXPR 1 x$w_buff1_used && x$r_buff1_thd1 ? x$w_buff1 : x [L747] EXPR 1 x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd1 ? x$w_buff1 : x) [L747] 1 x = x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd1 ? x$w_buff1 : x) [L748] EXPR 1 x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$w_buff0_used [L748] 1 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$w_buff0_used [L749] EXPR 1 x$w_buff0_used && x$r_buff0_thd1 || x$w_buff1_used && x$r_buff1_thd1 ? (_Bool)0 : x$w_buff1_used [L749] 1 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd1 || x$w_buff1_used && x$r_buff1_thd1 ? (_Bool)0 : x$w_buff1_used [L750] EXPR 1 x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$r_buff0_thd1 [L750] 1 x$r_buff0_thd1 = x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$r_buff0_thd1 [L751] EXPR 1 x$w_buff0_used && x$r_buff0_thd1 || x$w_buff1_used && x$r_buff1_thd1 ? (_Bool)0 : x$r_buff1_thd1 [L751] 1 x$r_buff1_thd1 = x$w_buff0_used && x$r_buff0_thd1 || x$w_buff1_used && x$r_buff1_thd1 ? (_Bool)0 : x$r_buff1_thd1 [L783] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L785] 2 return 0; [L754] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L756] 1 return 0; [L803] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L805] 3 return 0; [L825] 0 main$tmp_guard0 = __unbuffered_cnt == 3 [L3] COND FALSE 0 !(!cond) [L829] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x) [L829] EXPR 0 x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x [L829] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x) [L829] 0 x = x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x) [L830] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used [L830] 0 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used [L831] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$w_buff1_used [L831] 0 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$w_buff1_used [L832] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0 [L832] 0 x$r_buff0_thd0 = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0 [L833] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$r_buff1_thd0 [L833] 0 x$r_buff1_thd0 = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$r_buff1_thd0 [L836] 0 weak$$choice0 = __VERIFIER_nondet_bool() [L837] 0 weak$$choice2 = __VERIFIER_nondet_bool() [L838] 0 x$flush_delayed = weak$$choice2 [L839] 0 x$mem_tmp = x [L840] EXPR 0 !x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : x$w_buff1) [L840] 0 x = !x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : x$w_buff1) [L841] EXPR 0 weak$$choice2 ? x$w_buff0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff0 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : x$w_buff0)) [L841] 0 x$w_buff0 = weak$$choice2 ? x$w_buff0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff0 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : x$w_buff0)) [L842] EXPR 0 weak$$choice2 ? x$w_buff1 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff1 : x$w_buff1)) [L842] 0 x$w_buff1 = weak$$choice2 ? x$w_buff1 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff1 : x$w_buff1)) [L843] EXPR 0 weak$$choice2 ? x$w_buff0_used : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used)) [L843] 0 x$w_buff0_used = weak$$choice2 ? x$w_buff0_used : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used)) [L844] EXPR 0 weak$$choice2 ? x$w_buff1_used : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L844] 0 x$w_buff1_used = weak$$choice2 ? x$w_buff1_used : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L845] EXPR 0 weak$$choice2 ? x$r_buff0_thd0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff0_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0)) [L845] 0 x$r_buff0_thd0 = weak$$choice2 ? x$r_buff0_thd0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff0_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0)) [L846] EXPR 0 weak$$choice2 ? x$r_buff1_thd0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff1_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L846] 0 x$r_buff1_thd0 = weak$$choice2 ? x$r_buff1_thd0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff1_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L847] 0 main$tmp_guard1 = !(x == 2 && y == 2 && __unbuffered_p2_EAX == 1 && __unbuffered_p2_EBX == 1) [L848] EXPR 0 x$flush_delayed ? x$mem_tmp : x [L848] 0 x = x$flush_delayed ? x$mem_tmp : x [L849] 0 x$flush_delayed = (_Bool)0 [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=3, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=50, weak$$choice2=255, x=2, x$flush_delayed=0, x$mem_tmp=2, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 96 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 3.4ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 10780.8ms, OverallIterations: 14, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 1159.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 8063.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 78 SDtfs, 76 SDslu, 92 SDs, 0 SdLazy, 279 SolverSat, 68 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 318.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 81 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 419.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=287occurred in iteration=12, InterpolantAutomatonStates: 81, 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: 47.2ms SsaConstructionTime, 378.2ms SatisfiabilityAnalysisTime, 818.2ms InterpolantComputationTime, 330 NumberOfCodeBlocks, 330 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 286 ConstructedInterpolants, 0 QuantifiedInterpolants, 1105 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 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...