/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-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread/singleton_with-uninit-problems.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-10 14:52:19,957 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-10 14:52:19,958 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-10 14:52:19,981 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-10 14:52:19,981 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-10 14:52:19,984 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-10 14:52:19,986 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-10 14:52:19,990 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-10 14:52:19,992 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-10 14:52:19,995 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-10 14:52:19,996 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-10 14:52:19,997 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-10 14:52:19,998 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-10 14:52:19,999 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-10 14:52:20,000 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-10 14:52:20,001 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-10 14:52:20,002 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-10 14:52:20,002 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-10 14:52:20,006 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-10 14:52:20,012 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-10 14:52:20,013 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-10 14:52:20,014 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-10 14:52:20,014 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-10 14:52:20,016 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-10 14:52:20,020 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-10 14:52:20,027 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-10 14:52:20,027 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-10 14:52:20,028 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-10 14:52:20,028 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-FA-NoLbe.epf [2021-03-10 14:52:20,060 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-10 14:52:20,061 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-10 14:52:20,061 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-03-10 14:52:20,061 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-03-10 14:52:20,063 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-10 14:52:20,063 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-10 14:52:20,063 INFO L138 SettingsManager]: * Use SBE=true [2021-03-10 14:52:20,064 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-10 14:52:20,064 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-10 14:52:20,064 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-10 14:52:20,064 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-10 14:52:20,065 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-10 14:52:20,065 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-10 14:52:20,065 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-10 14:52:20,065 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-10 14:52:20,065 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-10 14:52:20,065 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-10 14:52:20,065 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-10 14:52:20,065 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-10 14:52:20,065 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-10 14:52:20,066 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-10 14:52:20,066 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-10 14:52:20,066 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-10 14:52:20,066 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-10 14:52:20,066 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-10 14:52:20,066 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-10 14:52:20,066 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-10 14:52:20,066 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-10 14:52:20,066 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-10 14:52:20,066 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-03-10 14:52:20,067 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-03-10 14:52:20,067 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-10 14:52:20,327 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-10 14:52:20,355 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-10 14:52:20,357 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-10 14:52:20,358 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-10 14:52:20,359 INFO L275 PluginConnector]: CDTParser initialized [2021-03-10 14:52:20,359 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/singleton_with-uninit-problems.i [2021-03-10 14:52:20,418 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe0c21f8c/85ff4724360045448456c2b405b9ad37/FLAG2ab9aec94 [2021-03-10 14:52:20,867 INFO L306 CDTParser]: Found 1 translation units. [2021-03-10 14:52:20,867 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/singleton_with-uninit-problems.i [2021-03-10 14:52:20,878 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe0c21f8c/85ff4724360045448456c2b405b9ad37/FLAG2ab9aec94 [2021-03-10 14:52:20,887 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe0c21f8c/85ff4724360045448456c2b405b9ad37 [2021-03-10 14:52:20,889 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-10 14:52:20,892 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-10 14:52:20,893 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-10 14:52:20,893 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-10 14:52:20,895 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-10 14:52:20,895 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.03 02:52:20" (1/1) ... [2021-03-10 14:52:20,896 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e6f7208 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 02:52:20, skipping insertion in model container [2021-03-10 14:52:20,896 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.03 02:52:20" (1/1) ... [2021-03-10 14:52:20,900 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-10 14:52:20,931 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-10 14:52:21,119 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-03-10 14:52:21,301 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/singleton_with-uninit-problems.i[55568,55581] [2021-03-10 14:52:21,312 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-10 14:52:21,317 INFO L203 MainTranslator]: Completed pre-run [2021-03-10 14:52:21,326 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-03-10 14:52:21,343 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/singleton_with-uninit-problems.i[55568,55581] [2021-03-10 14:52:21,347 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-10 14:52:21,485 INFO L208 MainTranslator]: Completed translation [2021-03-10 14:52:21,486 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 02:52:21 WrapperNode [2021-03-10 14:52:21,486 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-10 14:52:21,486 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-10 14:52:21,487 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-10 14:52:21,487 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-10 14:52:21,491 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 02:52:21" (1/1) ... [2021-03-10 14:52:21,515 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 02:52:21" (1/1) ... [2021-03-10 14:52:21,526 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-10 14:52:21,527 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-10 14:52:21,527 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-10 14:52:21,527 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-10 14:52:21,531 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 02:52:21" (1/1) ... [2021-03-10 14:52:21,531 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 02:52:21" (1/1) ... [2021-03-10 14:52:21,533 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 02:52:21" (1/1) ... [2021-03-10 14:52:21,533 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 02:52:21" (1/1) ... [2021-03-10 14:52:21,537 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 02:52:21" (1/1) ... [2021-03-10 14:52:21,539 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 02:52:21" (1/1) ... [2021-03-10 14:52:21,540 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 02:52:21" (1/1) ... [2021-03-10 14:52:21,541 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-10 14:52:21,542 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-10 14:52:21,542 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-10 14:52:21,542 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-10 14:52:21,543 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 02:52:21" (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 [2021-03-10 14:52:21,605 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-10 14:52:21,606 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-10 14:52:21,606 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-10 14:52:21,607 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-10 14:52:21,607 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-03-10 14:52:21,607 INFO L130 BoogieDeclarations]: Found specification of procedure thread0 [2021-03-10 14:52:21,608 INFO L138 BoogieDeclarations]: Found implementation of procedure thread0 [2021-03-10 14:52:21,608 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-03-10 14:52:21,608 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-03-10 14:52:21,608 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-03-10 14:52:21,608 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-03-10 14:52:21,608 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-03-10 14:52:21,608 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-03-10 14:52:21,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-10 14:52:21,608 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-03-10 14:52:21,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-10 14:52:21,608 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-10 14:52:21,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-10 14:52:21,610 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-10 14:52:21,961 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-10 14:52:21,961 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-03-10 14:52:21,963 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.03 02:52:21 BoogieIcfgContainer [2021-03-10 14:52:21,963 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-10 14:52:21,964 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-10 14:52:21,964 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-10 14:52:21,966 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-10 14:52:21,966 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.03 02:52:20" (1/3) ... [2021-03-10 14:52:21,967 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ce8bf9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.03 02:52:21, skipping insertion in model container [2021-03-10 14:52:21,967 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 02:52:21" (2/3) ... [2021-03-10 14:52:21,967 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ce8bf9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.03 02:52:21, skipping insertion in model container [2021-03-10 14:52:21,967 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.03 02:52:21" (3/3) ... [2021-03-10 14:52:21,968 INFO L111 eAbstractionObserver]: Analyzing ICFG singleton_with-uninit-problems.i [2021-03-10 14:52:21,973 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-03-10 14:52:21,974 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-10 14:52:21,977 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-10 14:52:21,977 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-10 14:52:22,035 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,036 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,036 WARN L313 ript$VariableManager]: TermVariabe thread0Thread1of1ForFork4_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,036 WARN L313 ript$VariableManager]: TermVariabe thread0Thread1of1ForFork4_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,037 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,037 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,037 WARN L313 ript$VariableManager]: TermVariabe thread0Thread1of1ForFork4_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,037 WARN L313 ript$VariableManager]: TermVariabe thread0Thread1of1ForFork4_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,037 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,037 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,037 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,037 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,037 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,038 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,038 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,038 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,038 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,039 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,039 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,039 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,039 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,039 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,039 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,039 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,039 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,040 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,040 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,040 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,040 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,040 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,040 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,040 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,041 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,041 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,041 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,041 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,041 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,041 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,041 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,041 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,043 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,043 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,043 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,043 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,043 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,043 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,043 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,043 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,043 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,043 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,043 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,044 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,044 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,044 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,044 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,044 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,044 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,044 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,045 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,045 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,045 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,045 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,045 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,045 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,045 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,045 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,045 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,045 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,045 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,046 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,046 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,046 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,046 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,046 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,046 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,046 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,046 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,046 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,046 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,047 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,047 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,047 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,047 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,047 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,047 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,047 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,047 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,047 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,047 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,048 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,049 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,051 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,051 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,051 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,052 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,057 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,057 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,058 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,058 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,058 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,058 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,058 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,058 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,058 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,061 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,061 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,061 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,061 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,061 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,061 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,062 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,062 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,062 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,062 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,062 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,062 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,062 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,062 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,062 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,062 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,062 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,062 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,063 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,063 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,063 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,063 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,063 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,063 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,063 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,063 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,063 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,063 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,064 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,064 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,064 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,064 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,064 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,064 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,064 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,064 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,064 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,064 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,064 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,064 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,064 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,064 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,065 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,065 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,065 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,065 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,065 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,065 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,065 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,065 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,065 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,065 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,065 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,065 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,065 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,066 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,066 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,066 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,066 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,066 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,066 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,066 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,066 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,066 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,066 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,066 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,066 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,067 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,067 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,067 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,067 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,067 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,067 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,067 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,067 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork5_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,067 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork5_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,067 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,067 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,067 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork5_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,067 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork5_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,068 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,068 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,068 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,068 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,068 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,068 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,068 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,068 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,068 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,068 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,068 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,068 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,069 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,069 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,069 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,069 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,070 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,071 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,071 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,071 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,074 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,074 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,075 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,075 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,076 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,076 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,076 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,076 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,077 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,077 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,077 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,077 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,077 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,078 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,082 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,082 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,082 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,082 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,082 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,083 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,083 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,083 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,084 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,088 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,088 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,088 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,088 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,088 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,088 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,088 WARN L313 ript$VariableManager]: TermVariabe thread0Thread1of1ForFork4_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,088 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,089 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,089 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,089 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,089 WARN L313 ript$VariableManager]: TermVariabe thread0Thread1of1ForFork4_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,089 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,089 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,089 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,091 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork5_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,091 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork5_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,091 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,091 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,092 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,092 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,092 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,092 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,092 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,092 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,093 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork5_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,094 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork5_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,094 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,094 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,097 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,097 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,097 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,097 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,098 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,099 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,099 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,099 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,100 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,101 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,101 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,101 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 14:52:22,199 INFO L149 ThreadInstanceAdder]: Constructed 121 joinOtherThreadTransitions. [2021-03-10 14:52:22,209 INFO L253 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2021-03-10 14:52:22,220 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-10 14:52:22,221 INFO L377 AbstractCegarLoop]: Hoare is true [2021-03-10 14:52:22,221 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-10 14:52:22,221 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-10 14:52:22,221 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-10 14:52:22,221 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-10 14:52:22,221 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-10 14:52:22,221 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-10 14:52:22,230 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 173 places, 255 transitions, 890 flow [2021-03-10 14:52:27,198 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 63242 states, 63236 states have (on average 4.290957682332849) internal successors, (271343), 63241 states have internal predecessors, (271343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:52:27,456 INFO L276 IsEmpty]: Start isEmpty. Operand has 63242 states, 63236 states have (on average 4.290957682332849) internal successors, (271343), 63241 states have internal predecessors, (271343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:52:27,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-03-10 14:52:27,463 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 14:52:27,464 INFO L519 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 14:52:27,464 INFO L428 AbstractCegarLoop]: === Iteration 1 === [thread0Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err0INUSE_VIOLATION, thread0Err6INUSE_VIOLATION, thread0Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Thread1of1ForFork4Err3INUSE_VIOLATION, thread0Thread1of1ForFork4Err9INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err7INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-10 14:52:27,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 14:52:27,467 INFO L82 PathProgramCache]: Analyzing trace with hash -1026650727, now seen corresponding path program 1 times [2021-03-10 14:52:27,472 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 14:52:27,473 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683011874] [2021-03-10 14:52:27,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 14:52:27,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 14:52:27,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 14:52:27,708 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683011874] [2021-03-10 14:52:27,709 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 14:52:27,709 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-10 14:52:27,709 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375606523] [2021-03-10 14:52:27,712 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-10 14:52:27,712 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 14:52:27,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-10 14:52:27,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-10 14:52:27,792 INFO L87 Difference]: Start difference. First operand has 63242 states, 63236 states have (on average 4.290957682332849) internal successors, (271343), 63241 states have internal predecessors, (271343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:52:28,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 14:52:28,879 INFO L93 Difference]: Finished difference Result 90542 states and 379077 transitions. [2021-03-10 14:52:28,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-10 14:52:28,880 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2021-03-10 14:52:28,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 14:52:29,101 INFO L225 Difference]: With dead ends: 90542 [2021-03-10 14:52:29,101 INFO L226 Difference]: Without dead ends: 40492 [2021-03-10 14:52:29,102 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 52.7ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-03-10 14:52:29,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40492 states. [2021-03-10 14:52:30,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40492 to 40492. [2021-03-10 14:52:30,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40492 states, 40489 states have (on average 4.278273111215392) internal successors, (173223), 40491 states have internal predecessors, (173223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:52:30,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40492 states to 40492 states and 173223 transitions. [2021-03-10 14:52:30,562 INFO L78 Accepts]: Start accepts. Automaton has 40492 states and 173223 transitions. Word has length 38 [2021-03-10 14:52:30,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 14:52:30,562 INFO L480 AbstractCegarLoop]: Abstraction has 40492 states and 173223 transitions. [2021-03-10 14:52:30,562 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:52:30,562 INFO L276 IsEmpty]: Start isEmpty. Operand 40492 states and 173223 transitions. [2021-03-10 14:52:30,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-03-10 14:52:30,565 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 14:52:30,565 INFO L519 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 14:52:30,565 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-10 14:52:30,565 INFO L428 AbstractCegarLoop]: === Iteration 2 === [thread0Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err0INUSE_VIOLATION, thread0Err6INUSE_VIOLATION, thread0Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Thread1of1ForFork4Err3INUSE_VIOLATION, thread0Thread1of1ForFork4Err9INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err7INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-10 14:52:30,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 14:52:30,566 INFO L82 PathProgramCache]: Analyzing trace with hash 266534998, now seen corresponding path program 1 times [2021-03-10 14:52:30,566 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 14:52:30,566 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544682148] [2021-03-10 14:52:30,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 14:52:30,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 14:52:30,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 14:52:30,671 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544682148] [2021-03-10 14:52:30,671 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 14:52:30,671 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-10 14:52:30,672 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794579767] [2021-03-10 14:52:30,672 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-10 14:52:30,673 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 14:52:30,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-10 14:52:30,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-03-10 14:52:30,675 INFO L87 Difference]: Start difference. First operand 40492 states and 173223 transitions. Second operand has 8 states, 8 states have (on average 5.0) internal successors, (40), 8 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:52:31,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 14:52:31,359 INFO L93 Difference]: Finished difference Result 47149 states and 204504 transitions. [2021-03-10 14:52:31,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-10 14:52:31,360 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.0) internal successors, (40), 8 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2021-03-10 14:52:31,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 14:52:31,734 INFO L225 Difference]: With dead ends: 47149 [2021-03-10 14:52:31,734 INFO L226 Difference]: Without dead ends: 47149 [2021-03-10 14:52:31,735 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 99.4ms TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2021-03-10 14:52:31,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47149 states. [2021-03-10 14:52:32,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47149 to 40510. [2021-03-10 14:52:32,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40510 states, 40507 states have (on average 4.2770879107314785) internal successors, (173252), 40509 states have internal predecessors, (173252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:52:33,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40510 states to 40510 states and 173252 transitions. [2021-03-10 14:52:33,048 INFO L78 Accepts]: Start accepts. Automaton has 40510 states and 173252 transitions. Word has length 40 [2021-03-10 14:52:33,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 14:52:33,049 INFO L480 AbstractCegarLoop]: Abstraction has 40510 states and 173252 transitions. [2021-03-10 14:52:33,049 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 5.0) internal successors, (40), 8 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:52:33,049 INFO L276 IsEmpty]: Start isEmpty. Operand 40510 states and 173252 transitions. [2021-03-10 14:52:33,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-03-10 14:52:33,051 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 14:52:33,051 INFO L519 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 14:52:33,051 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-10 14:52:33,052 INFO L428 AbstractCegarLoop]: === Iteration 3 === [thread0Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err0INUSE_VIOLATION, thread0Err6INUSE_VIOLATION, thread0Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Thread1of1ForFork4Err3INUSE_VIOLATION, thread0Thread1of1ForFork4Err9INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err7INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-10 14:52:33,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 14:52:33,052 INFO L82 PathProgramCache]: Analyzing trace with hash 952504534, now seen corresponding path program 2 times [2021-03-10 14:52:33,052 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 14:52:33,052 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59193911] [2021-03-10 14:52:33,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 14:52:33,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 14:52:33,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 14:52:33,117 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59193911] [2021-03-10 14:52:33,117 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 14:52:33,117 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-10 14:52:33,117 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390225084] [2021-03-10 14:52:33,117 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-10 14:52:33,118 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 14:52:33,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-10 14:52:33,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-03-10 14:52:33,118 INFO L87 Difference]: Start difference. First operand 40510 states and 173252 transitions. Second operand has 8 states, 8 states have (on average 5.0) internal successors, (40), 8 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:52:33,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 14:52:33,620 INFO L93 Difference]: Finished difference Result 53750 states and 235691 transitions. [2021-03-10 14:52:33,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-10 14:52:33,620 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.0) internal successors, (40), 8 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2021-03-10 14:52:33,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 14:52:34,066 INFO L225 Difference]: With dead ends: 53750 [2021-03-10 14:52:34,066 INFO L226 Difference]: Without dead ends: 53750 [2021-03-10 14:52:34,067 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 99.3ms TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2021-03-10 14:52:34,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53750 states. [2021-03-10 14:52:34,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53750 to 40456. [2021-03-10 14:52:35,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40456 states, 40454 states have (on average 4.280417264052998) internal successors, (173160), 40455 states have internal predecessors, (173160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:52:35,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40456 states to 40456 states and 173160 transitions. [2021-03-10 14:52:35,114 INFO L78 Accepts]: Start accepts. Automaton has 40456 states and 173160 transitions. Word has length 40 [2021-03-10 14:52:35,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 14:52:35,115 INFO L480 AbstractCegarLoop]: Abstraction has 40456 states and 173160 transitions. [2021-03-10 14:52:35,115 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 5.0) internal successors, (40), 8 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:52:35,115 INFO L276 IsEmpty]: Start isEmpty. Operand 40456 states and 173160 transitions. [2021-03-10 14:52:35,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-03-10 14:52:35,126 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 14:52:35,126 INFO L519 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 14:52:35,126 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-10 14:52:35,126 INFO L428 AbstractCegarLoop]: === Iteration 4 === [thread0Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err0INUSE_VIOLATION, thread0Err6INUSE_VIOLATION, thread0Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Thread1of1ForFork4Err3INUSE_VIOLATION, thread0Thread1of1ForFork4Err9INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err7INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-10 14:52:35,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 14:52:35,127 INFO L82 PathProgramCache]: Analyzing trace with hash 1354280477, now seen corresponding path program 1 times [2021-03-10 14:52:35,127 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 14:52:35,127 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310257315] [2021-03-10 14:52:35,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 14:52:35,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 14:52:35,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 14:52:35,162 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310257315] [2021-03-10 14:52:35,163 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 14:52:35,163 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-10 14:52:35,163 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232806142] [2021-03-10 14:52:35,163 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-10 14:52:35,163 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 14:52:35,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-10 14:52:35,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-10 14:52:35,164 INFO L87 Difference]: Start difference. First operand 40456 states and 173160 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:52:35,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 14:52:35,896 INFO L93 Difference]: Finished difference Result 74952 states and 314586 transitions. [2021-03-10 14:52:35,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-10 14:52:35,897 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2021-03-10 14:52:35,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 14:52:36,063 INFO L225 Difference]: With dead ends: 74952 [2021-03-10 14:52:36,063 INFO L226 Difference]: Without dead ends: 56518 [2021-03-10 14:52:36,063 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 23.8ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-03-10 14:52:36,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56518 states. [2021-03-10 14:52:37,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56518 to 40768. [2021-03-10 14:52:37,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40768 states, 40766 states have (on average 4.153215915223471) internal successors, (169310), 40767 states have internal predecessors, (169310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:52:37,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40768 states to 40768 states and 169310 transitions. [2021-03-10 14:52:37,767 INFO L78 Accepts]: Start accepts. Automaton has 40768 states and 169310 transitions. Word has length 50 [2021-03-10 14:52:37,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 14:52:37,767 INFO L480 AbstractCegarLoop]: Abstraction has 40768 states and 169310 transitions. [2021-03-10 14:52:37,768 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:52:37,768 INFO L276 IsEmpty]: Start isEmpty. Operand 40768 states and 169310 transitions. [2021-03-10 14:52:37,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-03-10 14:52:37,805 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 14:52:37,805 INFO L519 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 14:52:37,805 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-10 14:52:37,805 INFO L428 AbstractCegarLoop]: === Iteration 5 === [thread0Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err0INUSE_VIOLATION, thread0Err6INUSE_VIOLATION, thread0Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Thread1of1ForFork4Err3INUSE_VIOLATION, thread0Thread1of1ForFork4Err9INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err7INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-10 14:52:37,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 14:52:37,807 INFO L82 PathProgramCache]: Analyzing trace with hash -708160194, now seen corresponding path program 1 times [2021-03-10 14:52:37,807 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 14:52:37,807 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596832313] [2021-03-10 14:52:37,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 14:52:37,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 14:52:37,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 14:52:37,928 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596832313] [2021-03-10 14:52:37,928 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 14:52:37,928 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-10 14:52:37,928 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281447169] [2021-03-10 14:52:37,928 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-10 14:52:37,928 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 14:52:37,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-10 14:52:37,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-03-10 14:52:37,929 INFO L87 Difference]: Start difference. First operand 40768 states and 169310 transitions. Second operand has 8 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:52:38,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 14:52:38,335 INFO L93 Difference]: Finished difference Result 47586 states and 198088 transitions. [2021-03-10 14:52:38,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-10 14:52:38,335 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2021-03-10 14:52:38,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 14:52:38,450 INFO L225 Difference]: With dead ends: 47586 [2021-03-10 14:52:38,450 INFO L226 Difference]: Without dead ends: 47514 [2021-03-10 14:52:38,451 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 79.9ms TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2021-03-10 14:52:38,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47514 states. [2021-03-10 14:52:39,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47514 to 43871. [2021-03-10 14:52:39,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43871 states, 43869 states have (on average 4.185598030499897) internal successors, (183618), 43870 states have internal predecessors, (183618), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:52:39,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43871 states to 43871 states and 183618 transitions. [2021-03-10 14:52:39,861 INFO L78 Accepts]: Start accepts. Automaton has 43871 states and 183618 transitions. Word has length 52 [2021-03-10 14:52:39,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 14:52:39,862 INFO L480 AbstractCegarLoop]: Abstraction has 43871 states and 183618 transitions. [2021-03-10 14:52:39,862 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:52:39,862 INFO L276 IsEmpty]: Start isEmpty. Operand 43871 states and 183618 transitions. [2021-03-10 14:52:39,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-03-10 14:52:39,885 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 14:52:39,885 INFO L519 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 14:52:39,885 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-10 14:52:39,885 INFO L428 AbstractCegarLoop]: === Iteration 6 === [thread0Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err0INUSE_VIOLATION, thread0Err6INUSE_VIOLATION, thread0Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Thread1of1ForFork4Err3INUSE_VIOLATION, thread0Thread1of1ForFork4Err9INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err7INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-10 14:52:39,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 14:52:39,885 INFO L82 PathProgramCache]: Analyzing trace with hash -395163104, now seen corresponding path program 2 times [2021-03-10 14:52:39,886 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 14:52:39,886 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073259577] [2021-03-10 14:52:39,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 14:52:39,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 14:52:40,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 14:52:40,045 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073259577] [2021-03-10 14:52:40,046 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 14:52:40,046 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-10 14:52:40,046 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014088905] [2021-03-10 14:52:40,046 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-10 14:52:40,046 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 14:52:40,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-10 14:52:40,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-03-10 14:52:40,047 INFO L87 Difference]: Start difference. First operand 43871 states and 183618 transitions. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:52:40,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 14:52:40,537 INFO L93 Difference]: Finished difference Result 62153 states and 254644 transitions. [2021-03-10 14:52:40,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-10 14:52:40,537 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2021-03-10 14:52:40,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 14:52:40,691 INFO L225 Difference]: With dead ends: 62153 [2021-03-10 14:52:40,691 INFO L226 Difference]: Without dead ends: 59745 [2021-03-10 14:52:40,692 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 91.2ms TimeCoverageRelationStatistics Valid=81, Invalid=159, Unknown=0, NotChecked=0, Total=240 [2021-03-10 14:52:40,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59745 states. [2021-03-10 14:52:41,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59745 to 43766. [2021-03-10 14:52:41,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43766 states, 43764 states have (on average 4.188465405356) internal successors, (183304), 43765 states have internal predecessors, (183304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:52:42,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43766 states to 43766 states and 183304 transitions. [2021-03-10 14:52:42,115 INFO L78 Accepts]: Start accepts. Automaton has 43766 states and 183304 transitions. Word has length 52 [2021-03-10 14:52:42,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 14:52:42,116 INFO L480 AbstractCegarLoop]: Abstraction has 43766 states and 183304 transitions. [2021-03-10 14:52:42,116 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:52:42,116 INFO L276 IsEmpty]: Start isEmpty. Operand 43766 states and 183304 transitions. [2021-03-10 14:52:42,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-03-10 14:52:42,383 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 14:52:42,383 INFO L519 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 14:52:42,383 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-10 14:52:42,384 INFO L428 AbstractCegarLoop]: === Iteration 7 === [thread0Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err0INUSE_VIOLATION, thread0Err6INUSE_VIOLATION, thread0Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Thread1of1ForFork4Err3INUSE_VIOLATION, thread0Thread1of1ForFork4Err9INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err7INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-10 14:52:42,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 14:52:42,384 INFO L82 PathProgramCache]: Analyzing trace with hash -810059683, now seen corresponding path program 1 times [2021-03-10 14:52:42,384 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 14:52:42,384 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406946004] [2021-03-10 14:52:42,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 14:52:42,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 14:52:42,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 14:52:42,494 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406946004] [2021-03-10 14:52:42,494 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 14:52:42,494 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-10 14:52:42,494 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880145433] [2021-03-10 14:52:42,495 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-10 14:52:42,495 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 14:52:42,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-10 14:52:42,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-10 14:52:42,495 INFO L87 Difference]: Start difference. First operand 43766 states and 183304 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:52:43,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 14:52:43,004 INFO L93 Difference]: Finished difference Result 74803 states and 304139 transitions. [2021-03-10 14:52:43,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-10 14:52:43,005 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2021-03-10 14:52:43,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 14:52:43,149 INFO L225 Difference]: With dead ends: 74803 [2021-03-10 14:52:43,149 INFO L226 Difference]: Without dead ends: 51101 [2021-03-10 14:52:43,150 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 63.9ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-03-10 14:52:43,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51101 states. [2021-03-10 14:52:44,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51101 to 44924. [2021-03-10 14:52:44,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44924 states, 44923 states have (on average 4.054248380562296) internal successors, (182129), 44923 states have internal predecessors, (182129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:52:44,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44924 states to 44924 states and 182129 transitions. [2021-03-10 14:52:44,333 INFO L78 Accepts]: Start accepts. Automaton has 44924 states and 182129 transitions. Word has length 53 [2021-03-10 14:52:44,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 14:52:44,334 INFO L480 AbstractCegarLoop]: Abstraction has 44924 states and 182129 transitions. [2021-03-10 14:52:44,334 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:52:44,335 INFO L276 IsEmpty]: Start isEmpty. Operand 44924 states and 182129 transitions. [2021-03-10 14:52:44,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-03-10 14:52:44,370 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 14:52:44,371 INFO L519 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 14:52:44,371 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-10 14:52:44,371 INFO L428 AbstractCegarLoop]: === Iteration 8 === [thread0Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err0INUSE_VIOLATION, thread0Err6INUSE_VIOLATION, thread0Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Thread1of1ForFork4Err3INUSE_VIOLATION, thread0Thread1of1ForFork4Err9INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err7INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-10 14:52:44,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 14:52:44,371 INFO L82 PathProgramCache]: Analyzing trace with hash -82852460, now seen corresponding path program 1 times [2021-03-10 14:52:44,371 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 14:52:44,372 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168969212] [2021-03-10 14:52:44,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 14:52:44,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 14:52:44,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 14:52:44,424 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168969212] [2021-03-10 14:52:44,425 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 14:52:44,425 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-10 14:52:44,425 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645247087] [2021-03-10 14:52:44,425 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-10 14:52:44,425 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 14:52:44,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-10 14:52:44,426 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-03-10 14:52:44,426 INFO L87 Difference]: Start difference. First operand 44924 states and 182129 transitions. Second operand has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:52:45,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 14:52:45,048 INFO L93 Difference]: Finished difference Result 47766 states and 191459 transitions. [2021-03-10 14:52:45,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-10 14:52:45,049 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2021-03-10 14:52:45,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 14:52:45,159 INFO L225 Difference]: With dead ends: 47766 [2021-03-10 14:52:45,159 INFO L226 Difference]: Without dead ends: 46824 [2021-03-10 14:52:45,160 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 64.3ms TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-03-10 14:52:45,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46824 states. [2021-03-10 14:52:46,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46824 to 45404. [2021-03-10 14:52:46,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45404 states, 45403 states have (on average 4.0396009074290244) internal successors, (183410), 45403 states have internal predecessors, (183410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:52:46,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45404 states to 45404 states and 183410 transitions. [2021-03-10 14:52:46,329 INFO L78 Accepts]: Start accepts. Automaton has 45404 states and 183410 transitions. Word has length 55 [2021-03-10 14:52:46,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 14:52:46,329 INFO L480 AbstractCegarLoop]: Abstraction has 45404 states and 183410 transitions. [2021-03-10 14:52:46,329 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:52:46,329 INFO L276 IsEmpty]: Start isEmpty. Operand 45404 states and 183410 transitions. [2021-03-10 14:52:46,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-03-10 14:52:46,366 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 14:52:46,366 INFO L519 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 14:52:46,367 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-10 14:52:46,367 INFO L428 AbstractCegarLoop]: === Iteration 9 === [thread0Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err0INUSE_VIOLATION, thread0Err6INUSE_VIOLATION, thread0Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Thread1of1ForFork4Err3INUSE_VIOLATION, thread0Thread1of1ForFork4Err9INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err7INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-10 14:52:46,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 14:52:46,367 INFO L82 PathProgramCache]: Analyzing trace with hash 56288993, now seen corresponding path program 1 times [2021-03-10 14:52:46,367 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 14:52:46,367 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008932327] [2021-03-10 14:52:46,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 14:52:46,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 14:52:46,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 14:52:46,494 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008932327] [2021-03-10 14:52:46,495 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 14:52:46,495 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-10 14:52:46,495 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668122730] [2021-03-10 14:52:46,496 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-10 14:52:46,496 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 14:52:46,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-10 14:52:46,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2021-03-10 14:52:46,496 INFO L87 Difference]: Start difference. First operand 45404 states and 183410 transitions. Second operand has 11 states, 11 states have (on average 5.0) internal successors, (55), 11 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:52:47,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 14:52:47,016 INFO L93 Difference]: Finished difference Result 57386 states and 228698 transitions. [2021-03-10 14:52:47,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-10 14:52:47,017 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.0) internal successors, (55), 11 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2021-03-10 14:52:47,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 14:52:47,164 INFO L225 Difference]: With dead ends: 57386 [2021-03-10 14:52:47,164 INFO L226 Difference]: Without dead ends: 54130 [2021-03-10 14:52:47,165 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 164.4ms TimeCoverageRelationStatistics Valid=98, Invalid=208, Unknown=0, NotChecked=0, Total=306 [2021-03-10 14:52:47,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54130 states. [2021-03-10 14:52:48,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54130 to 45074. [2021-03-10 14:52:48,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45074 states, 45073 states have (on average 4.041088900228518) internal successors, (182144), 45073 states have internal predecessors, (182144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:52:48,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45074 states to 45074 states and 182144 transitions. [2021-03-10 14:52:48,752 INFO L78 Accepts]: Start accepts. Automaton has 45074 states and 182144 transitions. Word has length 55 [2021-03-10 14:52:48,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 14:52:48,752 INFO L480 AbstractCegarLoop]: Abstraction has 45074 states and 182144 transitions. [2021-03-10 14:52:48,752 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 5.0) internal successors, (55), 11 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:52:48,752 INFO L276 IsEmpty]: Start isEmpty. Operand 45074 states and 182144 transitions. [2021-03-10 14:52:48,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-03-10 14:52:48,798 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 14:52:48,798 INFO L519 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 14:52:48,798 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-10 14:52:48,798 INFO L428 AbstractCegarLoop]: === Iteration 10 === [thread0Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err0INUSE_VIOLATION, thread0Err6INUSE_VIOLATION, thread0Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Thread1of1ForFork4Err3INUSE_VIOLATION, thread0Thread1of1ForFork4Err9INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err7INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-10 14:52:48,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 14:52:48,798 INFO L82 PathProgramCache]: Analyzing trace with hash 39456114, now seen corresponding path program 2 times [2021-03-10 14:52:48,798 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 14:52:48,799 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560427272] [2021-03-10 14:52:48,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 14:52:48,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 14:52:48,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 14:52:48,909 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560427272] [2021-03-10 14:52:48,909 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 14:52:48,909 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-10 14:52:48,909 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149201330] [2021-03-10 14:52:48,909 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-10 14:52:48,910 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 14:52:48,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-10 14:52:48,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-03-10 14:52:48,910 INFO L87 Difference]: Start difference. First operand 45074 states and 182144 transitions. Second operand has 10 states, 10 states have (on average 5.5) internal successors, (55), 10 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:52:49,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 14:52:49,408 INFO L93 Difference]: Finished difference Result 51342 states and 207126 transitions. [2021-03-10 14:52:49,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-10 14:52:49,409 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.5) internal successors, (55), 10 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2021-03-10 14:52:49,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 14:52:49,537 INFO L225 Difference]: With dead ends: 51342 [2021-03-10 14:52:49,538 INFO L226 Difference]: Without dead ends: 50886 [2021-03-10 14:52:49,538 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 216.1ms TimeCoverageRelationStatistics Valid=95, Invalid=247, Unknown=0, NotChecked=0, Total=342 [2021-03-10 14:52:49,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50886 states. [2021-03-10 14:52:50,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50886 to 47542. [2021-03-10 14:52:50,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47542 states, 47541 states have (on average 4.063650322879199) internal successors, (193190), 47541 states have internal predecessors, (193190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:52:50,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47542 states to 47542 states and 193190 transitions. [2021-03-10 14:52:50,703 INFO L78 Accepts]: Start accepts. Automaton has 47542 states and 193190 transitions. Word has length 55 [2021-03-10 14:52:50,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 14:52:50,703 INFO L480 AbstractCegarLoop]: Abstraction has 47542 states and 193190 transitions. [2021-03-10 14:52:50,703 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 5.5) internal successors, (55), 10 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:52:50,703 INFO L276 IsEmpty]: Start isEmpty. Operand 47542 states and 193190 transitions. [2021-03-10 14:52:50,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-03-10 14:52:50,746 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 14:52:50,746 INFO L519 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 14:52:50,746 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-10 14:52:50,746 INFO L428 AbstractCegarLoop]: === Iteration 11 === [thread0Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err0INUSE_VIOLATION, thread0Err6INUSE_VIOLATION, thread0Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Thread1of1ForFork4Err3INUSE_VIOLATION, thread0Thread1of1ForFork4Err9INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err7INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-10 14:52:50,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 14:52:50,746 INFO L82 PathProgramCache]: Analyzing trace with hash -1882878498, now seen corresponding path program 3 times [2021-03-10 14:52:50,747 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 14:52:50,747 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404957791] [2021-03-10 14:52:50,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 14:52:50,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 14:52:50,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 14:52:50,850 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404957791] [2021-03-10 14:52:50,850 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 14:52:50,850 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-03-10 14:52:50,850 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852301006] [2021-03-10 14:52:50,851 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-10 14:52:50,851 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 14:52:50,852 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-10 14:52:50,853 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2021-03-10 14:52:50,853 INFO L87 Difference]: Start difference. First operand 47542 states and 193190 transitions. Second operand has 12 states, 12 states have (on average 4.583333333333333) internal successors, (55), 12 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:52:51,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 14:52:51,692 INFO L93 Difference]: Finished difference Result 60683 states and 247095 transitions. [2021-03-10 14:52:51,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-10 14:52:51,693 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.583333333333333) internal successors, (55), 12 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2021-03-10 14:52:51,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 14:52:51,864 INFO L225 Difference]: With dead ends: 60683 [2021-03-10 14:52:51,864 INFO L226 Difference]: Without dead ends: 60227 [2021-03-10 14:52:51,865 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 145.1ms TimeCoverageRelationStatistics Valid=118, Invalid=262, Unknown=0, NotChecked=0, Total=380 [2021-03-10 14:52:52,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60227 states. [2021-03-10 14:52:53,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60227 to 47540. [2021-03-10 14:52:53,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47540 states, 47539 states have (on average 4.06373714213593) internal successors, (193186), 47539 states have internal predecessors, (193186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:52:53,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47540 states to 47540 states and 193186 transitions. [2021-03-10 14:52:53,210 INFO L78 Accepts]: Start accepts. Automaton has 47540 states and 193186 transitions. Word has length 55 [2021-03-10 14:52:53,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 14:52:53,210 INFO L480 AbstractCegarLoop]: Abstraction has 47540 states and 193186 transitions. [2021-03-10 14:52:53,210 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 4.583333333333333) internal successors, (55), 12 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:52:53,210 INFO L276 IsEmpty]: Start isEmpty. Operand 47540 states and 193186 transitions. [2021-03-10 14:52:53,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-03-10 14:52:53,256 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 14:52:53,257 INFO L519 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 14:52:53,257 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-03-10 14:52:53,257 INFO L428 AbstractCegarLoop]: === Iteration 12 === [thread0Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err0INUSE_VIOLATION, thread0Err6INUSE_VIOLATION, thread0Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Thread1of1ForFork4Err3INUSE_VIOLATION, thread0Thread1of1ForFork4Err9INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err7INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-10 14:52:53,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 14:52:53,257 INFO L82 PathProgramCache]: Analyzing trace with hash -776004538, now seen corresponding path program 4 times [2021-03-10 14:52:53,257 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 14:52:53,257 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217370627] [2021-03-10 14:52:53,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 14:52:53,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 14:52:53,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 14:52:53,501 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217370627] [2021-03-10 14:52:53,501 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 14:52:53,502 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-03-10 14:52:53,502 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122964156] [2021-03-10 14:52:53,502 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-03-10 14:52:53,502 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 14:52:53,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-03-10 14:52:53,502 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2021-03-10 14:52:53,502 INFO L87 Difference]: Start difference. First operand 47540 states and 193186 transitions. Second operand has 15 states, 15 states have (on average 3.6666666666666665) internal successors, (55), 15 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:52:54,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 14:52:54,689 INFO L93 Difference]: Finished difference Result 53720 states and 217951 transitions. [2021-03-10 14:52:54,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-03-10 14:52:54,689 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.6666666666666665) internal successors, (55), 15 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2021-03-10 14:52:54,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 14:52:54,831 INFO L225 Difference]: With dead ends: 53720 [2021-03-10 14:52:54,832 INFO L226 Difference]: Without dead ends: 53264 [2021-03-10 14:52:54,832 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 478.9ms TimeCoverageRelationStatistics Valid=159, Invalid=441, Unknown=0, NotChecked=0, Total=600 [2021-03-10 14:52:54,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53264 states. [2021-03-10 14:52:55,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53264 to 47434. [2021-03-10 14:52:55,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47434 states, 47433 states have (on average 4.066957603356313) internal successors, (192908), 47433 states have internal predecessors, (192908), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:52:56,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47434 states to 47434 states and 192908 transitions. [2021-03-10 14:52:56,065 INFO L78 Accepts]: Start accepts. Automaton has 47434 states and 192908 transitions. Word has length 55 [2021-03-10 14:52:56,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 14:52:56,065 INFO L480 AbstractCegarLoop]: Abstraction has 47434 states and 192908 transitions. [2021-03-10 14:52:56,065 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 3.6666666666666665) internal successors, (55), 15 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:52:56,065 INFO L276 IsEmpty]: Start isEmpty. Operand 47434 states and 192908 transitions. [2021-03-10 14:52:56,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-03-10 14:52:56,101 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 14:52:56,101 INFO L519 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 14:52:56,101 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-03-10 14:52:56,102 INFO L428 AbstractCegarLoop]: === Iteration 13 === [thread0Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err0INUSE_VIOLATION, thread0Err6INUSE_VIOLATION, thread0Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Thread1of1ForFork4Err3INUSE_VIOLATION, thread0Thread1of1ForFork4Err9INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err7INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-10 14:52:56,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 14:52:56,102 INFO L82 PathProgramCache]: Analyzing trace with hash -1848268010, now seen corresponding path program 1 times [2021-03-10 14:52:56,102 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 14:52:56,102 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386951290] [2021-03-10 14:52:56,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 14:52:56,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 14:52:56,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 14:52:56,176 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386951290] [2021-03-10 14:52:56,176 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 14:52:56,176 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-10 14:52:56,176 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841124984] [2021-03-10 14:52:56,176 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-10 14:52:56,176 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 14:52:56,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-10 14:52:56,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-03-10 14:52:56,178 INFO L87 Difference]: Start difference. First operand 47434 states and 192908 transitions. Second operand has 11 states, 11 states have (on average 5.0) internal successors, (55), 11 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:52:56,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 14:52:56,681 INFO L93 Difference]: Finished difference Result 58696 states and 235487 transitions. [2021-03-10 14:52:56,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-10 14:52:56,682 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.0) internal successors, (55), 11 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2021-03-10 14:52:56,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 14:52:56,812 INFO L225 Difference]: With dead ends: 58696 [2021-03-10 14:52:56,812 INFO L226 Difference]: Without dead ends: 53121 [2021-03-10 14:52:56,812 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 140.5ms TimeCoverageRelationStatistics Valid=150, Invalid=312, Unknown=0, NotChecked=0, Total=462 [2021-03-10 14:52:57,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53121 states. [2021-03-10 14:52:58,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53121 to 46834. [2021-03-10 14:52:58,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46834 states, 46833 states have (on average 4.070057438131232) internal successors, (190613), 46833 states have internal predecessors, (190613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:52:58,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46834 states to 46834 states and 190613 transitions. [2021-03-10 14:52:58,239 INFO L78 Accepts]: Start accepts. Automaton has 46834 states and 190613 transitions. Word has length 55 [2021-03-10 14:52:58,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 14:52:58,239 INFO L480 AbstractCegarLoop]: Abstraction has 46834 states and 190613 transitions. [2021-03-10 14:52:58,239 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 5.0) internal successors, (55), 11 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:52:58,239 INFO L276 IsEmpty]: Start isEmpty. Operand 46834 states and 190613 transitions. [2021-03-10 14:52:58,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-03-10 14:52:58,614 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 14:52:58,614 INFO L519 BasicCegarLoop]: 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, 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] [2021-03-10 14:52:58,614 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-03-10 14:52:58,615 INFO L428 AbstractCegarLoop]: === Iteration 14 === [thread0Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err0INUSE_VIOLATION, thread0Err6INUSE_VIOLATION, thread0Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Thread1of1ForFork4Err3INUSE_VIOLATION, thread0Thread1of1ForFork4Err9INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err7INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-10 14:52:58,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 14:52:58,615 INFO L82 PathProgramCache]: Analyzing trace with hash 1290457157, now seen corresponding path program 1 times [2021-03-10 14:52:58,615 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 14:52:58,615 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780511669] [2021-03-10 14:52:58,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 14:52:58,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 14:52:58,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 14:52:58,960 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780511669] [2021-03-10 14:52:58,960 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 14:52:58,960 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-03-10 14:52:58,961 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474840725] [2021-03-10 14:52:58,961 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-03-10 14:52:58,961 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 14:52:58,961 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-03-10 14:52:58,961 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=226, Unknown=0, NotChecked=0, Total=272 [2021-03-10 14:52:58,961 INFO L87 Difference]: Start difference. First operand 46834 states and 190613 transitions. Second operand has 17 states, 17 states have (on average 3.3529411764705883) internal successors, (57), 17 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:52:59,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 14:52:59,643 INFO L93 Difference]: Finished difference Result 55851 states and 228064 transitions. [2021-03-10 14:52:59,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-10 14:52:59,644 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.3529411764705883) internal successors, (57), 17 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2021-03-10 14:52:59,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 14:52:59,785 INFO L225 Difference]: With dead ends: 55851 [2021-03-10 14:52:59,785 INFO L226 Difference]: Without dead ends: 55395 [2021-03-10 14:52:59,786 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 404.8ms TimeCoverageRelationStatistics Valid=136, Invalid=416, Unknown=0, NotChecked=0, Total=552 [2021-03-10 14:52:59,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55395 states. [2021-03-10 14:53:00,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55395 to 46185. [2021-03-10 14:53:00,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46185 states, 46184 states have (on average 4.074961025463364) internal successors, (188198), 46184 states have internal predecessors, (188198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:53:00,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46185 states to 46185 states and 188198 transitions. [2021-03-10 14:53:00,960 INFO L78 Accepts]: Start accepts. Automaton has 46185 states and 188198 transitions. Word has length 57 [2021-03-10 14:53:00,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 14:53:00,960 INFO L480 AbstractCegarLoop]: Abstraction has 46185 states and 188198 transitions. [2021-03-10 14:53:00,960 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 3.3529411764705883) internal successors, (57), 17 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:53:00,960 INFO L276 IsEmpty]: Start isEmpty. Operand 46185 states and 188198 transitions. [2021-03-10 14:53:01,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-03-10 14:53:01,010 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 14:53:01,011 INFO L519 BasicCegarLoop]: 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, 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] [2021-03-10 14:53:01,011 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-03-10 14:53:01,011 INFO L428 AbstractCegarLoop]: === Iteration 15 === [thread0Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err0INUSE_VIOLATION, thread0Err6INUSE_VIOLATION, thread0Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Thread1of1ForFork4Err3INUSE_VIOLATION, thread0Thread1of1ForFork4Err9INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err7INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-10 14:53:01,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 14:53:01,011 INFO L82 PathProgramCache]: Analyzing trace with hash -155077000, now seen corresponding path program 1 times [2021-03-10 14:53:01,011 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 14:53:01,011 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175969017] [2021-03-10 14:53:01,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 14:53:01,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 14:53:01,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 14:53:01,065 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175969017] [2021-03-10 14:53:01,065 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 14:53:01,065 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-10 14:53:01,065 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890884969] [2021-03-10 14:53:01,066 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-10 14:53:01,066 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 14:53:01,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-10 14:53:01,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-03-10 14:53:01,067 INFO L87 Difference]: Start difference. First operand 46185 states and 188198 transitions. Second operand has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:53:01,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 14:53:01,731 INFO L93 Difference]: Finished difference Result 47901 states and 193292 transitions. [2021-03-10 14:53:01,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-10 14:53:01,732 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2021-03-10 14:53:01,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 14:53:01,843 INFO L225 Difference]: With dead ends: 47901 [2021-03-10 14:53:01,843 INFO L226 Difference]: Without dead ends: 46170 [2021-03-10 14:53:01,843 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 69.0ms TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-03-10 14:53:01,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46170 states. [2021-03-10 14:53:02,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46170 to 45366. [2021-03-10 14:53:02,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45366 states, 45365 states have (on average 4.07089165656343) internal successors, (184676), 45365 states have internal predecessors, (184676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:53:03,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45366 states to 45366 states and 184676 transitions. [2021-03-10 14:53:03,073 INFO L78 Accepts]: Start accepts. Automaton has 45366 states and 184676 transitions. Word has length 58 [2021-03-10 14:53:03,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 14:53:03,073 INFO L480 AbstractCegarLoop]: Abstraction has 45366 states and 184676 transitions. [2021-03-10 14:53:03,073 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:53:03,074 INFO L276 IsEmpty]: Start isEmpty. Operand 45366 states and 184676 transitions. [2021-03-10 14:53:03,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-03-10 14:53:03,124 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 14:53:03,124 INFO L519 BasicCegarLoop]: 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, 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] [2021-03-10 14:53:03,124 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-03-10 14:53:03,124 INFO L428 AbstractCegarLoop]: === Iteration 16 === [thread0Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err0INUSE_VIOLATION, thread0Err6INUSE_VIOLATION, thread0Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Thread1of1ForFork4Err3INUSE_VIOLATION, thread0Thread1of1ForFork4Err9INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err7INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-10 14:53:03,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 14:53:03,125 INFO L82 PathProgramCache]: Analyzing trace with hash 427662306, now seen corresponding path program 1 times [2021-03-10 14:53:03,125 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 14:53:03,125 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741941779] [2021-03-10 14:53:03,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 14:53:03,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 14:53:03,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 14:53:03,195 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741941779] [2021-03-10 14:53:03,197 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 14:53:03,197 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-10 14:53:03,197 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343309357] [2021-03-10 14:53:03,197 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-10 14:53:03,197 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 14:53:03,197 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-10 14:53:03,197 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-03-10 14:53:03,198 INFO L87 Difference]: Start difference. First operand 45366 states and 184676 transitions. Second operand has 10 states, 10 states have (on average 5.8) internal successors, (58), 10 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:53:03,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 14:53:03,618 INFO L93 Difference]: Finished difference Result 56183 states and 227282 transitions. [2021-03-10 14:53:03,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-10 14:53:03,619 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.8) internal successors, (58), 10 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2021-03-10 14:53:03,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 14:53:03,762 INFO L225 Difference]: With dead ends: 56183 [2021-03-10 14:53:03,762 INFO L226 Difference]: Without dead ends: 55535 [2021-03-10 14:53:03,763 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 100.3ms TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2021-03-10 14:53:03,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55535 states. [2021-03-10 14:53:04,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55535 to 46938. [2021-03-10 14:53:04,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46938 states, 46937 states have (on average 4.070477448494791) internal successors, (191056), 46937 states have internal predecessors, (191056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:53:04,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46938 states to 46938 states and 191056 transitions. [2021-03-10 14:53:04,983 INFO L78 Accepts]: Start accepts. Automaton has 46938 states and 191056 transitions. Word has length 58 [2021-03-10 14:53:04,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 14:53:04,983 INFO L480 AbstractCegarLoop]: Abstraction has 46938 states and 191056 transitions. [2021-03-10 14:53:04,983 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 5.8) internal successors, (58), 10 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:53:04,983 INFO L276 IsEmpty]: Start isEmpty. Operand 46938 states and 191056 transitions. [2021-03-10 14:53:05,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-03-10 14:53:05,038 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 14:53:05,039 INFO L519 BasicCegarLoop]: 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, 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] [2021-03-10 14:53:05,039 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-03-10 14:53:05,039 INFO L428 AbstractCegarLoop]: === Iteration 17 === [thread0Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err0INUSE_VIOLATION, thread0Err6INUSE_VIOLATION, thread0Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Thread1of1ForFork4Err3INUSE_VIOLATION, thread0Thread1of1ForFork4Err9INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err7INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-10 14:53:05,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 14:53:05,039 INFO L82 PathProgramCache]: Analyzing trace with hash 1407384026, now seen corresponding path program 2 times [2021-03-10 14:53:05,039 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 14:53:05,039 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369942223] [2021-03-10 14:53:05,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 14:53:05,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 14:53:05,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 14:53:05,082 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369942223] [2021-03-10 14:53:05,082 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 14:53:05,082 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-10 14:53:05,082 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669621994] [2021-03-10 14:53:05,082 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-10 14:53:05,082 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 14:53:05,082 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-10 14:53:05,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-03-10 14:53:05,083 INFO L87 Difference]: Start difference. First operand 46938 states and 191056 transitions. Second operand has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:53:05,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 14:53:05,905 INFO L93 Difference]: Finished difference Result 60125 states and 241168 transitions. [2021-03-10 14:53:05,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-10 14:53:05,905 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2021-03-10 14:53:05,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 14:53:06,036 INFO L225 Difference]: With dead ends: 60125 [2021-03-10 14:53:06,036 INFO L226 Difference]: Without dead ends: 50893 [2021-03-10 14:53:06,036 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 72.0ms TimeCoverageRelationStatistics Valid=81, Invalid=159, Unknown=0, NotChecked=0, Total=240 [2021-03-10 14:53:06,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50893 states. [2021-03-10 14:53:07,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50893 to 42845. [2021-03-10 14:53:07,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42845 states, 42844 states have (on average 4.041779479040239) internal successors, (173166), 42844 states have internal predecessors, (173166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:53:07,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42845 states to 42845 states and 173166 transitions. [2021-03-10 14:53:07,254 INFO L78 Accepts]: Start accepts. Automaton has 42845 states and 173166 transitions. Word has length 58 [2021-03-10 14:53:07,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 14:53:07,254 INFO L480 AbstractCegarLoop]: Abstraction has 42845 states and 173166 transitions. [2021-03-10 14:53:07,254 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:53:07,254 INFO L276 IsEmpty]: Start isEmpty. Operand 42845 states and 173166 transitions. [2021-03-10 14:53:07,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-03-10 14:53:07,299 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 14:53:07,299 INFO L519 BasicCegarLoop]: 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, 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] [2021-03-10 14:53:07,299 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-03-10 14:53:07,299 INFO L428 AbstractCegarLoop]: === Iteration 18 === [thread0Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err0INUSE_VIOLATION, thread0Err6INUSE_VIOLATION, thread0Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Thread1of1ForFork4Err3INUSE_VIOLATION, thread0Thread1of1ForFork4Err9INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err7INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-10 14:53:07,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 14:53:07,299 INFO L82 PathProgramCache]: Analyzing trace with hash 1635934492, now seen corresponding path program 2 times [2021-03-10 14:53:07,300 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 14:53:07,300 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059905636] [2021-03-10 14:53:07,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 14:53:07,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 14:53:07,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 14:53:07,402 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059905636] [2021-03-10 14:53:07,402 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 14:53:07,403 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-03-10 14:53:07,403 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540481922] [2021-03-10 14:53:07,404 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-10 14:53:07,404 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 14:53:07,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-10 14:53:07,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-03-10 14:53:07,404 INFO L87 Difference]: Start difference. First operand 42845 states and 173166 transitions. Second operand has 13 states, 13 states have (on average 4.461538461538462) internal successors, (58), 13 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:53:07,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 14:53:07,876 INFO L93 Difference]: Finished difference Result 47601 states and 190804 transitions. [2021-03-10 14:53:07,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-10 14:53:07,876 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.461538461538462) internal successors, (58), 13 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2021-03-10 14:53:07,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 14:53:07,974 INFO L225 Difference]: With dead ends: 47601 [2021-03-10 14:53:07,974 INFO L226 Difference]: Without dead ends: 43912 [2021-03-10 14:53:07,975 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 187.8ms TimeCoverageRelationStatistics Valid=117, Invalid=263, Unknown=0, NotChecked=0, Total=380 [2021-03-10 14:53:08,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43912 states. [2021-03-10 14:53:08,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43912 to 39840. [2021-03-10 14:53:09,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39840 states, 39839 states have (on average 4.034589221617009) internal successors, (160734), 39839 states have internal predecessors, (160734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:53:09,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39840 states to 39840 states and 160734 transitions. [2021-03-10 14:53:09,101 INFO L78 Accepts]: Start accepts. Automaton has 39840 states and 160734 transitions. Word has length 58 [2021-03-10 14:53:09,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 14:53:09,101 INFO L480 AbstractCegarLoop]: Abstraction has 39840 states and 160734 transitions. [2021-03-10 14:53:09,101 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 4.461538461538462) internal successors, (58), 13 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:53:09,101 INFO L276 IsEmpty]: Start isEmpty. Operand 39840 states and 160734 transitions. [2021-03-10 14:53:09,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-03-10 14:53:09,145 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 14:53:09,146 INFO L519 BasicCegarLoop]: 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, 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] [2021-03-10 14:53:09,146 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-03-10 14:53:09,146 INFO L428 AbstractCegarLoop]: === Iteration 19 === [thread0Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err0INUSE_VIOLATION, thread0Err6INUSE_VIOLATION, thread0Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Thread1of1ForFork4Err3INUSE_VIOLATION, thread0Thread1of1ForFork4Err9INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err7INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-10 14:53:09,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 14:53:09,146 INFO L82 PathProgramCache]: Analyzing trace with hash -1245555593, now seen corresponding path program 1 times [2021-03-10 14:53:09,146 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 14:53:09,146 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055841270] [2021-03-10 14:53:09,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 14:53:09,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 14:53:09,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 14:53:09,201 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055841270] [2021-03-10 14:53:09,201 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 14:53:09,201 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-10 14:53:09,201 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329507578] [2021-03-10 14:53:09,201 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-10 14:53:09,202 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 14:53:09,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-10 14:53:09,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-03-10 14:53:09,202 INFO L87 Difference]: Start difference. First operand 39840 states and 160734 transitions. Second operand has 11 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 11 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:53:09,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 14:53:09,663 INFO L93 Difference]: Finished difference Result 50707 states and 202886 transitions. [2021-03-10 14:53:09,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-10 14:53:09,664 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 11 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2021-03-10 14:53:09,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 14:53:10,100 INFO L225 Difference]: With dead ends: 50707 [2021-03-10 14:53:10,100 INFO L226 Difference]: Without dead ends: 42437 [2021-03-10 14:53:10,100 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 135.6ms TimeCoverageRelationStatistics Valid=150, Invalid=312, Unknown=0, NotChecked=0, Total=462 [2021-03-10 14:53:10,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42437 states. [2021-03-10 14:53:10,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42437 to 36645. [2021-03-10 14:53:10,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36645 states, 36644 states have (on average 4.020712804279009) internal successors, (147335), 36644 states have internal predecessors, (147335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:53:10,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36645 states to 36645 states and 147335 transitions. [2021-03-10 14:53:10,789 INFO L78 Accepts]: Start accepts. Automaton has 36645 states and 147335 transitions. Word has length 58 [2021-03-10 14:53:10,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 14:53:10,789 INFO L480 AbstractCegarLoop]: Abstraction has 36645 states and 147335 transitions. [2021-03-10 14:53:10,789 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 11 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:53:10,790 INFO L276 IsEmpty]: Start isEmpty. Operand 36645 states and 147335 transitions. [2021-03-10 14:53:10,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-03-10 14:53:10,826 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 14:53:10,826 INFO L519 BasicCegarLoop]: 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, 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] [2021-03-10 14:53:10,826 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-03-10 14:53:10,826 INFO L428 AbstractCegarLoop]: === Iteration 20 === [thread0Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err0INUSE_VIOLATION, thread0Err6INUSE_VIOLATION, thread0Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Thread1of1ForFork4Err3INUSE_VIOLATION, thread0Thread1of1ForFork4Err9INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err7INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-10 14:53:10,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 14:53:10,826 INFO L82 PathProgramCache]: Analyzing trace with hash -1809305065, now seen corresponding path program 2 times [2021-03-10 14:53:10,826 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 14:53:10,826 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98208484] [2021-03-10 14:53:10,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 14:53:10,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 14:53:10,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 14:53:10,908 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98208484] [2021-03-10 14:53:10,908 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 14:53:10,908 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-03-10 14:53:10,908 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642465008] [2021-03-10 14:53:10,908 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-10 14:53:10,908 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 14:53:10,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-10 14:53:10,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2021-03-10 14:53:10,909 INFO L87 Difference]: Start difference. First operand 36645 states and 147335 transitions. Second operand has 13 states, 13 states have (on average 4.461538461538462) internal successors, (58), 13 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:53:11,374 WARN L205 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 34 [2021-03-10 14:53:11,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 14:53:11,713 INFO L93 Difference]: Finished difference Result 41647 states and 166311 transitions. [2021-03-10 14:53:11,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-10 14:53:11,714 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.461538461538462) internal successors, (58), 13 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2021-03-10 14:53:11,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 14:53:11,810 INFO L225 Difference]: With dead ends: 41647 [2021-03-10 14:53:11,810 INFO L226 Difference]: Without dead ends: 36317 [2021-03-10 14:53:11,811 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 477.8ms TimeCoverageRelationStatistics Valid=173, Invalid=379, Unknown=0, NotChecked=0, Total=552 [2021-03-10 14:53:11,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36317 states. [2021-03-10 14:53:12,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36317 to 34335. [2021-03-10 14:53:12,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34335 states, 34334 states have (on average 4.02851400943671) internal successors, (138315), 34334 states have internal predecessors, (138315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:53:12,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34335 states to 34335 states and 138315 transitions. [2021-03-10 14:53:12,790 INFO L78 Accepts]: Start accepts. Automaton has 34335 states and 138315 transitions. Word has length 58 [2021-03-10 14:53:12,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 14:53:12,790 INFO L480 AbstractCegarLoop]: Abstraction has 34335 states and 138315 transitions. [2021-03-10 14:53:12,790 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 4.461538461538462) internal successors, (58), 13 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:53:12,790 INFO L276 IsEmpty]: Start isEmpty. Operand 34335 states and 138315 transitions. [2021-03-10 14:53:12,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-03-10 14:53:12,831 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 14:53:12,831 INFO L519 BasicCegarLoop]: 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, 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] [2021-03-10 14:53:12,831 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-03-10 14:53:12,831 INFO L428 AbstractCegarLoop]: === Iteration 21 === [thread0Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err0INUSE_VIOLATION, thread0Err6INUSE_VIOLATION, thread0Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Thread1of1ForFork4Err3INUSE_VIOLATION, thread0Thread1of1ForFork4Err9INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err7INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-10 14:53:12,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 14:53:12,832 INFO L82 PathProgramCache]: Analyzing trace with hash 915510417, now seen corresponding path program 1 times [2021-03-10 14:53:12,832 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 14:53:12,832 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258472811] [2021-03-10 14:53:12,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 14:53:12,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 14:53:12,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 14:53:12,949 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258472811] [2021-03-10 14:53:12,949 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 14:53:12,950 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-10 14:53:12,950 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753450426] [2021-03-10 14:53:12,950 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-10 14:53:12,950 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 14:53:12,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-10 14:53:12,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-03-10 14:53:12,950 INFO L87 Difference]: Start difference. First operand 34335 states and 138315 transitions. Second operand has 10 states, 10 states have (on average 6.0) internal successors, (60), 10 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:53:13,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 14:53:13,393 INFO L93 Difference]: Finished difference Result 37901 states and 151631 transitions. [2021-03-10 14:53:13,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-10 14:53:13,394 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.0) internal successors, (60), 10 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2021-03-10 14:53:13,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 14:53:13,486 INFO L225 Difference]: With dead ends: 37901 [2021-03-10 14:53:13,487 INFO L226 Difference]: Without dead ends: 37004 [2021-03-10 14:53:13,487 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 193.9ms TimeCoverageRelationStatistics Valid=95, Invalid=247, Unknown=0, NotChecked=0, Total=342 [2021-03-10 14:53:13,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37004 states. [2021-03-10 14:53:14,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37004 to 34324. [2021-03-10 14:53:14,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34324 states, 34323 states have (on average 4.029921626897416) internal successors, (138319), 34323 states have internal predecessors, (138319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:53:14,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34324 states to 34324 states and 138319 transitions. [2021-03-10 14:53:14,443 INFO L78 Accepts]: Start accepts. Automaton has 34324 states and 138319 transitions. Word has length 60 [2021-03-10 14:53:14,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 14:53:14,443 INFO L480 AbstractCegarLoop]: Abstraction has 34324 states and 138319 transitions. [2021-03-10 14:53:14,443 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 6.0) internal successors, (60), 10 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:53:14,443 INFO L276 IsEmpty]: Start isEmpty. Operand 34324 states and 138319 transitions. [2021-03-10 14:53:14,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-03-10 14:53:14,479 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 14:53:14,479 INFO L519 BasicCegarLoop]: 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, 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] [2021-03-10 14:53:14,479 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-03-10 14:53:14,479 INFO L428 AbstractCegarLoop]: === Iteration 22 === [thread0Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err0INUSE_VIOLATION, thread0Err6INUSE_VIOLATION, thread0Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Thread1of1ForFork4Err3INUSE_VIOLATION, thread0Thread1of1ForFork4Err9INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err7INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-10 14:53:14,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 14:53:14,479 INFO L82 PathProgramCache]: Analyzing trace with hash -274609815, now seen corresponding path program 1 times [2021-03-10 14:53:14,480 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 14:53:14,480 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618055256] [2021-03-10 14:53:14,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 14:53:14,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 14:53:14,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 14:53:14,764 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618055256] [2021-03-10 14:53:14,764 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 14:53:14,765 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-03-10 14:53:14,765 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23228526] [2021-03-10 14:53:14,765 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-03-10 14:53:14,765 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 14:53:14,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-03-10 14:53:14,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2021-03-10 14:53:14,767 INFO L87 Difference]: Start difference. First operand 34324 states and 138319 transitions. Second operand has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:53:15,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 14:53:15,605 INFO L93 Difference]: Finished difference Result 39615 states and 158748 transitions. [2021-03-10 14:53:15,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-10 14:53:15,605 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2021-03-10 14:53:15,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 14:53:15,697 INFO L225 Difference]: With dead ends: 39615 [2021-03-10 14:53:15,697 INFO L226 Difference]: Without dead ends: 38691 [2021-03-10 14:53:15,698 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 655.3ms TimeCoverageRelationStatistics Valid=136, Invalid=370, Unknown=0, NotChecked=0, Total=506 [2021-03-10 14:53:15,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38691 states. [2021-03-10 14:53:16,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38691 to 35202. [2021-03-10 14:53:16,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35202 states, 35201 states have (on average 4.039430697991534) internal successors, (142192), 35201 states have internal predecessors, (142192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:53:16,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35202 states to 35202 states and 142192 transitions. [2021-03-10 14:53:16,617 INFO L78 Accepts]: Start accepts. Automaton has 35202 states and 142192 transitions. Word has length 60 [2021-03-10 14:53:16,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 14:53:16,617 INFO L480 AbstractCegarLoop]: Abstraction has 35202 states and 142192 transitions. [2021-03-10 14:53:16,617 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:53:16,617 INFO L276 IsEmpty]: Start isEmpty. Operand 35202 states and 142192 transitions. [2021-03-10 14:53:16,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-03-10 14:53:16,654 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 14:53:16,654 INFO L519 BasicCegarLoop]: 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, 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] [2021-03-10 14:53:16,655 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-03-10 14:53:16,655 INFO L428 AbstractCegarLoop]: === Iteration 23 === [thread0Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err0INUSE_VIOLATION, thread0Err6INUSE_VIOLATION, thread0Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Thread1of1ForFork4Err3INUSE_VIOLATION, thread0Thread1of1ForFork4Err9INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err7INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-10 14:53:16,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 14:53:16,655 INFO L82 PathProgramCache]: Analyzing trace with hash 703809299, now seen corresponding path program 2 times [2021-03-10 14:53:16,655 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 14:53:16,655 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469292544] [2021-03-10 14:53:16,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 14:53:16,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 14:53:16,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 14:53:16,934 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469292544] [2021-03-10 14:53:16,934 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 14:53:16,934 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-03-10 14:53:16,935 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210318538] [2021-03-10 14:53:16,935 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-03-10 14:53:16,935 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 14:53:16,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-03-10 14:53:16,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2021-03-10 14:53:16,936 INFO L87 Difference]: Start difference. First operand 35202 states and 142192 transitions. Second operand has 17 states, 17 states have (on average 3.5294117647058822) internal successors, (60), 17 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:53:18,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 14:53:18,061 INFO L93 Difference]: Finished difference Result 37796 states and 151088 transitions. [2021-03-10 14:53:18,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-10 14:53:18,061 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.5294117647058822) internal successors, (60), 17 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2021-03-10 14:53:18,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 14:53:18,151 INFO L225 Difference]: With dead ends: 37796 [2021-03-10 14:53:18,151 INFO L226 Difference]: Without dead ends: 37373 [2021-03-10 14:53:18,152 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 592.9ms TimeCoverageRelationStatistics Valid=168, Invalid=534, Unknown=0, NotChecked=0, Total=702 [2021-03-10 14:53:18,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37373 states. [2021-03-10 14:53:18,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37373 to 33369. [2021-03-10 14:53:18,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33369 states, 33368 states have (on average 4.025743227043875) internal successors, (134331), 33368 states have internal predecessors, (134331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:53:18,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33369 states to 33369 states and 134331 transitions. [2021-03-10 14:53:18,839 INFO L78 Accepts]: Start accepts. Automaton has 33369 states and 134331 transitions. Word has length 60 [2021-03-10 14:53:18,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 14:53:18,839 INFO L480 AbstractCegarLoop]: Abstraction has 33369 states and 134331 transitions. [2021-03-10 14:53:18,839 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 3.5294117647058822) internal successors, (60), 17 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:53:18,839 INFO L276 IsEmpty]: Start isEmpty. Operand 33369 states and 134331 transitions. [2021-03-10 14:53:18,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-03-10 14:53:18,874 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 14:53:18,874 INFO L519 BasicCegarLoop]: 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, 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] [2021-03-10 14:53:18,874 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-03-10 14:53:18,874 INFO L428 AbstractCegarLoop]: === Iteration 24 === [thread0Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err0INUSE_VIOLATION, thread0Err6INUSE_VIOLATION, thread0Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Thread1of1ForFork4Err3INUSE_VIOLATION, thread0Thread1of1ForFork4Err9INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err7INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-10 14:53:18,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 14:53:18,875 INFO L82 PathProgramCache]: Analyzing trace with hash 1492172978, now seen corresponding path program 1 times [2021-03-10 14:53:18,875 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 14:53:18,875 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712664316] [2021-03-10 14:53:18,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 14:53:18,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 14:53:19,252 WARN L205 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 26 [2021-03-10 14:53:19,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 14:53:19,327 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712664316] [2021-03-10 14:53:19,327 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 14:53:19,328 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-03-10 14:53:19,328 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129312567] [2021-03-10 14:53:19,328 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-03-10 14:53:19,328 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 14:53:19,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-03-10 14:53:19,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2021-03-10 14:53:19,328 INFO L87 Difference]: Start difference. First operand 33369 states and 134331 transitions. Second operand has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:53:20,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 14:53:20,009 INFO L93 Difference]: Finished difference Result 39478 states and 157918 transitions. [2021-03-10 14:53:20,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-10 14:53:20,010 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2021-03-10 14:53:20,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 14:53:20,099 INFO L225 Difference]: With dead ends: 39478 [2021-03-10 14:53:20,100 INFO L226 Difference]: Without dead ends: 39013 [2021-03-10 14:53:20,100 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 670.1ms TimeCoverageRelationStatistics Valid=201, Invalid=501, Unknown=0, NotChecked=0, Total=702 [2021-03-10 14:53:20,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39013 states. [2021-03-10 14:53:20,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39013 to 31821. [2021-03-10 14:53:20,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31821 states, 31820 states have (on average 4.02683846637335) internal successors, (128134), 31820 states have internal predecessors, (128134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:53:20,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31821 states to 31821 states and 128134 transitions. [2021-03-10 14:53:20,996 INFO L78 Accepts]: Start accepts. Automaton has 31821 states and 128134 transitions. Word has length 60 [2021-03-10 14:53:20,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 14:53:20,996 INFO L480 AbstractCegarLoop]: Abstraction has 31821 states and 128134 transitions. [2021-03-10 14:53:20,996 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:53:20,996 INFO L276 IsEmpty]: Start isEmpty. Operand 31821 states and 128134 transitions. [2021-03-10 14:53:21,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-03-10 14:53:21,030 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 14:53:21,030 INFO L519 BasicCegarLoop]: 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, 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] [2021-03-10 14:53:21,030 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-03-10 14:53:21,030 INFO L428 AbstractCegarLoop]: === Iteration 25 === [thread0Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err0INUSE_VIOLATION, thread0Err6INUSE_VIOLATION, thread0Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Thread1of1ForFork4Err3INUSE_VIOLATION, thread0Thread1of1ForFork4Err9INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err7INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-10 14:53:21,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 14:53:21,030 INFO L82 PathProgramCache]: Analyzing trace with hash 2023847845, now seen corresponding path program 2 times [2021-03-10 14:53:21,030 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 14:53:21,031 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014183747] [2021-03-10 14:53:21,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 14:53:21,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 14:53:21,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 14:53:21,158 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014183747] [2021-03-10 14:53:21,158 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 14:53:21,158 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-03-10 14:53:21,158 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243502535] [2021-03-10 14:53:21,159 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-10 14:53:21,159 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 14:53:21,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-10 14:53:21,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-03-10 14:53:21,159 INFO L87 Difference]: Start difference. First operand 31821 states and 128134 transitions. Second operand has 12 states, 12 states have (on average 5.0) internal successors, (60), 12 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:53:21,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 14:53:21,639 INFO L93 Difference]: Finished difference Result 34519 states and 137944 transitions. [2021-03-10 14:53:21,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-10 14:53:21,639 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.0) internal successors, (60), 12 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2021-03-10 14:53:21,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 14:53:21,716 INFO L225 Difference]: With dead ends: 34519 [2021-03-10 14:53:21,716 INFO L226 Difference]: Without dead ends: 33622 [2021-03-10 14:53:21,716 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 250.9ms TimeCoverageRelationStatistics Valid=123, Invalid=339, Unknown=0, NotChecked=0, Total=462 [2021-03-10 14:53:21,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33622 states. [2021-03-10 14:53:22,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33622 to 31811. [2021-03-10 14:53:22,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31811 states, 31810 states have (on average 4.027349889971707) internal successors, (128110), 31810 states have internal predecessors, (128110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:53:22,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31811 states to 31811 states and 128110 transitions. [2021-03-10 14:53:22,549 INFO L78 Accepts]: Start accepts. Automaton has 31811 states and 128110 transitions. Word has length 60 [2021-03-10 14:53:22,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 14:53:22,549 INFO L480 AbstractCegarLoop]: Abstraction has 31811 states and 128110 transitions. [2021-03-10 14:53:22,549 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 5.0) internal successors, (60), 12 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:53:22,549 INFO L276 IsEmpty]: Start isEmpty. Operand 31811 states and 128110 transitions. [2021-03-10 14:53:22,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-03-10 14:53:22,582 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 14:53:22,582 INFO L519 BasicCegarLoop]: 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, 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] [2021-03-10 14:53:22,582 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-03-10 14:53:22,583 INFO L428 AbstractCegarLoop]: === Iteration 26 === [thread0Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err0INUSE_VIOLATION, thread0Err6INUSE_VIOLATION, thread0Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Thread1of1ForFork4Err3INUSE_VIOLATION, thread0Thread1of1ForFork4Err9INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err7INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-10 14:53:22,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 14:53:22,583 INFO L82 PathProgramCache]: Analyzing trace with hash 515223258, now seen corresponding path program 1 times [2021-03-10 14:53:22,583 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 14:53:22,583 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225756205] [2021-03-10 14:53:22,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 14:53:22,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 14:53:22,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 14:53:22,902 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225756205] [2021-03-10 14:53:22,902 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 14:53:22,902 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 14:53:22,903 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750445931] [2021-03-10 14:53:22,903 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 14:53:22,903 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 14:53:22,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 14:53:22,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2021-03-10 14:53:22,903 INFO L87 Difference]: Start difference. First operand 31811 states and 128110 transitions. Second operand has 18 states, 18 states have (on average 3.3333333333333335) internal successors, (60), 18 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:53:24,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 14:53:24,095 INFO L93 Difference]: Finished difference Result 29364 states and 115642 transitions. [2021-03-10 14:53:24,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 14:53:24,096 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.3333333333333335) internal successors, (60), 18 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2021-03-10 14:53:24,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 14:53:24,159 INFO L225 Difference]: With dead ends: 29364 [2021-03-10 14:53:24,159 INFO L226 Difference]: Without dead ends: 28434 [2021-03-10 14:53:24,160 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 980.0ms TimeCoverageRelationStatistics Valid=220, Invalid=650, Unknown=0, NotChecked=0, Total=870 [2021-03-10 14:53:24,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28434 states. [2021-03-10 14:53:24,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28434 to 24318. [2021-03-10 14:53:24,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24318 states, 24317 states have (on average 3.96265986758235) internal successors, (96360), 24317 states have internal predecessors, (96360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:53:24,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24318 states to 24318 states and 96360 transitions. [2021-03-10 14:53:24,932 INFO L78 Accepts]: Start accepts. Automaton has 24318 states and 96360 transitions. Word has length 60 [2021-03-10 14:53:24,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 14:53:24,933 INFO L480 AbstractCegarLoop]: Abstraction has 24318 states and 96360 transitions. [2021-03-10 14:53:24,933 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 3.3333333333333335) internal successors, (60), 18 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:53:24,933 INFO L276 IsEmpty]: Start isEmpty. Operand 24318 states and 96360 transitions. [2021-03-10 14:53:24,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-03-10 14:53:24,960 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 14:53:24,960 INFO L519 BasicCegarLoop]: 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, 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] [2021-03-10 14:53:24,960 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-03-10 14:53:24,960 INFO L428 AbstractCegarLoop]: === Iteration 27 === [thread0Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err0INUSE_VIOLATION, thread0Err6INUSE_VIOLATION, thread0Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Thread1of1ForFork4Err3INUSE_VIOLATION, thread0Thread1of1ForFork4Err9INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err7INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-10 14:53:24,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 14:53:24,961 INFO L82 PathProgramCache]: Analyzing trace with hash -408873155, now seen corresponding path program 3 times [2021-03-10 14:53:24,961 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 14:53:24,961 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765421021] [2021-03-10 14:53:24,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 14:53:24,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 14:53:25,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 14:53:25,152 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765421021] [2021-03-10 14:53:25,153 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 14:53:25,153 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-03-10 14:53:25,153 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008598764] [2021-03-10 14:53:25,153 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-03-10 14:53:25,153 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 14:53:25,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-03-10 14:53:25,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2021-03-10 14:53:25,154 INFO L87 Difference]: Start difference. First operand 24318 states and 96360 transitions. Second operand has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:53:25,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 14:53:25,544 INFO L93 Difference]: Finished difference Result 29901 states and 117498 transitions. [2021-03-10 14:53:25,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-03-10 14:53:25,544 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2021-03-10 14:53:25,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 14:53:25,608 INFO L225 Difference]: With dead ends: 29901 [2021-03-10 14:53:25,608 INFO L226 Difference]: Without dead ends: 29004 [2021-03-10 14:53:25,609 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 271.9ms TimeCoverageRelationStatistics Valid=160, Invalid=392, Unknown=0, NotChecked=0, Total=552 [2021-03-10 14:53:25,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29004 states. [2021-03-10 14:53:26,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29004 to 24314. [2021-03-10 14:53:26,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24314 states, 24313 states have (on average 3.9629005059021924) internal successors, (96350), 24313 states have internal predecessors, (96350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:53:26,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24314 states to 24314 states and 96350 transitions. [2021-03-10 14:53:26,315 INFO L78 Accepts]: Start accepts. Automaton has 24314 states and 96350 transitions. Word has length 60 [2021-03-10 14:53:26,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 14:53:26,316 INFO L480 AbstractCegarLoop]: Abstraction has 24314 states and 96350 transitions. [2021-03-10 14:53:26,316 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:53:26,316 INFO L276 IsEmpty]: Start isEmpty. Operand 24314 states and 96350 transitions. [2021-03-10 14:53:26,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-03-10 14:53:26,341 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 14:53:26,341 INFO L519 BasicCegarLoop]: 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, 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] [2021-03-10 14:53:26,341 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-03-10 14:53:26,341 INFO L428 AbstractCegarLoop]: === Iteration 28 === [thread0Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err0INUSE_VIOLATION, thread0Err6INUSE_VIOLATION, thread0Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Thread1of1ForFork4Err3INUSE_VIOLATION, thread0Thread1of1ForFork4Err9INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err7INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-10 14:53:26,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 14:53:26,342 INFO L82 PathProgramCache]: Analyzing trace with hash 698291797, now seen corresponding path program 4 times [2021-03-10 14:53:26,342 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 14:53:26,342 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535845426] [2021-03-10 14:53:26,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 14:53:26,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 14:53:26,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 14:53:26,457 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535845426] [2021-03-10 14:53:26,458 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 14:53:26,458 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-03-10 14:53:26,458 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663496036] [2021-03-10 14:53:26,458 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-03-10 14:53:26,458 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 14:53:26,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-03-10 14:53:26,458 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2021-03-10 14:53:26,458 INFO L87 Difference]: Start difference. First operand 24314 states and 96350 transitions. Second operand has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:53:26,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 14:53:26,829 INFO L93 Difference]: Finished difference Result 26819 states and 105382 transitions. [2021-03-10 14:53:26,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-10 14:53:26,830 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2021-03-10 14:53:26,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 14:53:26,888 INFO L225 Difference]: With dead ends: 26819 [2021-03-10 14:53:26,888 INFO L226 Difference]: Without dead ends: 25922 [2021-03-10 14:53:26,888 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 169.3ms TimeCoverageRelationStatistics Valid=103, Invalid=239, Unknown=0, NotChecked=0, Total=342 [2021-03-10 14:53:26,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25922 states. [2021-03-10 14:53:27,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25922 to 24146. [2021-03-10 14:53:27,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24146 states, 24145 states have (on average 3.9604887140194656) internal successors, (95626), 24145 states have internal predecessors, (95626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:53:27,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24146 states to 24146 states and 95626 transitions. [2021-03-10 14:53:27,532 INFO L78 Accepts]: Start accepts. Automaton has 24146 states and 95626 transitions. Word has length 60 [2021-03-10 14:53:27,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 14:53:27,533 INFO L480 AbstractCegarLoop]: Abstraction has 24146 states and 95626 transitions. [2021-03-10 14:53:27,533 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:53:27,533 INFO L276 IsEmpty]: Start isEmpty. Operand 24146 states and 95626 transitions. [2021-03-10 14:53:27,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-03-10 14:53:27,557 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 14:53:27,557 INFO L519 BasicCegarLoop]: 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, 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] [2021-03-10 14:53:27,557 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-03-10 14:53:27,558 INFO L428 AbstractCegarLoop]: === Iteration 29 === [thread0Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err0INUSE_VIOLATION, thread0Err6INUSE_VIOLATION, thread0Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Thread1of1ForFork4Err3INUSE_VIOLATION, thread0Thread1of1ForFork4Err9INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err7INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-10 14:53:27,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 14:53:27,558 INFO L82 PathProgramCache]: Analyzing trace with hash -274473425, now seen corresponding path program 5 times [2021-03-10 14:53:27,558 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 14:53:27,558 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397359997] [2021-03-10 14:53:27,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 14:53:27,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 14:53:27,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 14:53:27,821 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397359997] [2021-03-10 14:53:27,821 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 14:53:27,821 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-03-10 14:53:27,821 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126193072] [2021-03-10 14:53:27,821 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-03-10 14:53:27,821 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 14:53:27,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-03-10 14:53:27,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=224, Unknown=0, NotChecked=0, Total=272 [2021-03-10 14:53:27,822 INFO L87 Difference]: Start difference. First operand 24146 states and 95626 transitions. Second operand has 17 states, 17 states have (on average 3.5294117647058822) internal successors, (60), 17 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:53:28,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 14:53:28,363 INFO L93 Difference]: Finished difference Result 26959 states and 105928 transitions. [2021-03-10 14:53:28,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-10 14:53:28,364 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.5294117647058822) internal successors, (60), 17 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2021-03-10 14:53:28,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 14:53:28,426 INFO L225 Difference]: With dead ends: 26959 [2021-03-10 14:53:28,426 INFO L226 Difference]: Without dead ends: 26086 [2021-03-10 14:53:28,427 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 407.9ms TimeCoverageRelationStatistics Valid=139, Invalid=413, Unknown=0, NotChecked=0, Total=552 [2021-03-10 14:53:28,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26086 states. [2021-03-10 14:53:28,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26086 to 23746. [2021-03-10 14:53:29,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23746 states, 23745 states have (on average 3.9590650663297535) internal successors, (94008), 23745 states have internal predecessors, (94008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:53:29,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23746 states to 23746 states and 94008 transitions. [2021-03-10 14:53:29,074 INFO L78 Accepts]: Start accepts. Automaton has 23746 states and 94008 transitions. Word has length 60 [2021-03-10 14:53:29,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 14:53:29,074 INFO L480 AbstractCegarLoop]: Abstraction has 23746 states and 94008 transitions. [2021-03-10 14:53:29,074 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 3.5294117647058822) internal successors, (60), 17 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:53:29,074 INFO L276 IsEmpty]: Start isEmpty. Operand 23746 states and 94008 transitions. [2021-03-10 14:53:29,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-03-10 14:53:29,101 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 14:53:29,101 INFO L519 BasicCegarLoop]: 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, 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] [2021-03-10 14:53:29,101 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-03-10 14:53:29,101 INFO L428 AbstractCegarLoop]: === Iteration 30 === [thread0Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err0INUSE_VIOLATION, thread0Err6INUSE_VIOLATION, thread0Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Thread1of1ForFork4Err3INUSE_VIOLATION, thread0Thread1of1ForFork4Err9INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err7INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-10 14:53:29,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 14:53:29,102 INFO L82 PathProgramCache]: Analyzing trace with hash -933275818, now seen corresponding path program 1 times [2021-03-10 14:53:29,102 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 14:53:29,102 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429371290] [2021-03-10 14:53:29,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 14:53:29,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 14:53:29,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 14:53:29,543 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429371290] [2021-03-10 14:53:29,543 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 14:53:29,543 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 14:53:29,543 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360236068] [2021-03-10 14:53:29,543 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 14:53:29,543 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 14:53:29,544 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 14:53:29,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2021-03-10 14:53:29,544 INFO L87 Difference]: Start difference. First operand 23746 states and 94008 transitions. Second operand has 18 states, 18 states have (on average 3.4444444444444446) internal successors, (62), 18 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:53:30,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 14:53:30,392 INFO L93 Difference]: Finished difference Result 21710 states and 84834 transitions. [2021-03-10 14:53:30,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-10 14:53:30,393 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.4444444444444446) internal successors, (62), 18 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-03-10 14:53:30,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 14:53:30,437 INFO L225 Difference]: With dead ends: 21710 [2021-03-10 14:53:30,437 INFO L226 Difference]: Without dead ends: 20450 [2021-03-10 14:53:30,437 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 843.8ms TimeCoverageRelationStatistics Valid=188, Invalid=568, Unknown=0, NotChecked=0, Total=756 [2021-03-10 14:53:30,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20450 states. [2021-03-10 14:53:30,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20450 to 17828. [2021-03-10 14:53:30,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17828 states, 17827 states have (on average 3.9146799798059124) internal successors, (69787), 17827 states have internal predecessors, (69787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:53:30,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17828 states to 17828 states and 69787 transitions. [2021-03-10 14:53:30,985 INFO L78 Accepts]: Start accepts. Automaton has 17828 states and 69787 transitions. Word has length 62 [2021-03-10 14:53:30,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 14:53:30,985 INFO L480 AbstractCegarLoop]: Abstraction has 17828 states and 69787 transitions. [2021-03-10 14:53:30,985 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 3.4444444444444446) internal successors, (62), 18 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:53:30,985 INFO L276 IsEmpty]: Start isEmpty. Operand 17828 states and 69787 transitions. [2021-03-10 14:53:31,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-03-10 14:53:31,008 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 14:53:31,008 INFO L519 BasicCegarLoop]: 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, 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] [2021-03-10 14:53:31,008 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-03-10 14:53:31,008 INFO L428 AbstractCegarLoop]: === Iteration 31 === [thread0Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err0INUSE_VIOLATION, thread0Err6INUSE_VIOLATION, thread0Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Thread1of1ForFork4Err3INUSE_VIOLATION, thread0Thread1of1ForFork4Err9INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err7INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-10 14:53:31,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 14:53:31,009 INFO L82 PathProgramCache]: Analyzing trace with hash -522413068, now seen corresponding path program 1 times [2021-03-10 14:53:31,009 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 14:53:31,009 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69694387] [2021-03-10 14:53:31,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 14:53:31,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 14:53:31,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 14:53:31,230 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69694387] [2021-03-10 14:53:31,230 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 14:53:31,230 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-03-10 14:53:31,230 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268980843] [2021-03-10 14:53:31,230 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-03-10 14:53:31,230 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 14:53:31,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-03-10 14:53:31,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2021-03-10 14:53:31,231 INFO L87 Difference]: Start difference. First operand 17828 states and 69787 transitions. Second operand has 16 states, 16 states have (on average 3.875) internal successors, (62), 16 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:53:31,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 14:53:31,858 INFO L93 Difference]: Finished difference Result 20963 states and 81473 transitions. [2021-03-10 14:53:31,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-10 14:53:31,859 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.875) internal successors, (62), 16 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-03-10 14:53:31,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 14:53:31,904 INFO L225 Difference]: With dead ends: 20963 [2021-03-10 14:53:31,904 INFO L226 Difference]: Without dead ends: 20192 [2021-03-10 14:53:31,905 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 458.7ms TimeCoverageRelationStatistics Valid=145, Invalid=407, Unknown=0, NotChecked=0, Total=552 [2021-03-10 14:53:31,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20192 states. [2021-03-10 14:53:32,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20192 to 17772. [2021-03-10 14:53:32,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17772 states, 17771 states have (on average 3.9141860334252434) internal successors, (69559), 17771 states have internal predecessors, (69559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:53:32,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17772 states to 17772 states and 69559 transitions. [2021-03-10 14:53:32,258 INFO L78 Accepts]: Start accepts. Automaton has 17772 states and 69559 transitions. Word has length 62 [2021-03-10 14:53:32,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 14:53:32,258 INFO L480 AbstractCegarLoop]: Abstraction has 17772 states and 69559 transitions. [2021-03-10 14:53:32,258 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 3.875) internal successors, (62), 16 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:53:32,258 INFO L276 IsEmpty]: Start isEmpty. Operand 17772 states and 69559 transitions. [2021-03-10 14:53:32,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-03-10 14:53:32,280 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 14:53:32,280 INFO L519 BasicCegarLoop]: 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, 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] [2021-03-10 14:53:32,281 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-03-10 14:53:32,281 INFO L428 AbstractCegarLoop]: === Iteration 32 === [thread0Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err0INUSE_VIOLATION, thread0Err6INUSE_VIOLATION, thread0Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Thread1of1ForFork4Err3INUSE_VIOLATION, thread0Thread1of1ForFork4Err9INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err7INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-10 14:53:32,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 14:53:32,281 INFO L82 PathProgramCache]: Analyzing trace with hash -1495178290, now seen corresponding path program 2 times [2021-03-10 14:53:32,281 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 14:53:32,282 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571891563] [2021-03-10 14:53:32,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 14:53:32,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 14:53:32,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 14:53:32,790 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571891563] [2021-03-10 14:53:32,790 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 14:53:32,790 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-03-10 14:53:32,790 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446431767] [2021-03-10 14:53:32,791 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-03-10 14:53:32,791 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 14:53:32,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-03-10 14:53:32,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2021-03-10 14:53:32,792 INFO L87 Difference]: Start difference. First operand 17772 states and 69559 transitions. Second operand has 19 states, 19 states have (on average 3.263157894736842) internal successors, (62), 19 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:53:33,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 14:53:33,627 INFO L93 Difference]: Finished difference Result 18001 states and 69581 transitions. [2021-03-10 14:53:33,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 14:53:33,628 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.263157894736842) internal successors, (62), 19 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-03-10 14:53:33,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 14:53:33,659 INFO L225 Difference]: With dead ends: 18001 [2021-03-10 14:53:33,659 INFO L226 Difference]: Without dead ends: 15436 [2021-03-10 14:53:33,660 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 685.6ms TimeCoverageRelationStatistics Valid=215, Invalid=655, Unknown=0, NotChecked=0, Total=870 [2021-03-10 14:53:33,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15436 states. [2021-03-10 14:53:33,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15436 to 12940. [2021-03-10 14:53:33,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12940 states, 12939 states have (on average 3.8345312620758945) internal successors, (49615), 12939 states have internal predecessors, (49615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:53:33,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12940 states to 12940 states and 49615 transitions. [2021-03-10 14:53:33,893 INFO L78 Accepts]: Start accepts. Automaton has 12940 states and 49615 transitions. Word has length 62 [2021-03-10 14:53:33,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 14:53:33,893 INFO L480 AbstractCegarLoop]: Abstraction has 12940 states and 49615 transitions. [2021-03-10 14:53:33,893 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 3.263157894736842) internal successors, (62), 19 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:53:33,893 INFO L276 IsEmpty]: Start isEmpty. Operand 12940 states and 49615 transitions. [2021-03-10 14:53:33,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-03-10 14:53:33,907 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 14:53:33,907 INFO L519 BasicCegarLoop]: 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, 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, 1] [2021-03-10 14:53:33,907 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-03-10 14:53:33,907 INFO L428 AbstractCegarLoop]: === Iteration 33 === [thread0Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err0INUSE_VIOLATION, thread0Err6INUSE_VIOLATION, thread0Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Thread1of1ForFork4Err3INUSE_VIOLATION, thread0Thread1of1ForFork4Err9INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err7INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-10 14:53:33,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 14:53:33,907 INFO L82 PathProgramCache]: Analyzing trace with hash 127494773, now seen corresponding path program 1 times [2021-03-10 14:53:33,908 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 14:53:33,908 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630209127] [2021-03-10 14:53:33,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 14:53:33,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 14:53:33,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 14:53:33,949 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630209127] [2021-03-10 14:53:33,949 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 14:53:33,949 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-10 14:53:33,949 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107035515] [2021-03-10 14:53:33,950 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-10 14:53:33,950 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 14:53:33,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-10 14:53:33,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-03-10 14:53:33,950 INFO L87 Difference]: Start difference. First operand 12940 states and 49615 transitions. Second operand has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:53:34,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 14:53:34,121 INFO L93 Difference]: Finished difference Result 14402 states and 54404 transitions. [2021-03-10 14:53:34,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-10 14:53:34,121 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2021-03-10 14:53:34,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 14:53:34,147 INFO L225 Difference]: With dead ends: 14402 [2021-03-10 14:53:34,148 INFO L226 Difference]: Without dead ends: 12912 [2021-03-10 14:53:34,148 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 55.2ms TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-03-10 14:53:34,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12912 states. [2021-03-10 14:53:34,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12912 to 12912. [2021-03-10 14:53:34,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12912 states, 12911 states have (on average 3.837657811168771) internal successors, (49548), 12911 states have internal predecessors, (49548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:53:34,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12912 states to 12912 states and 49548 transitions. [2021-03-10 14:53:34,464 INFO L78 Accepts]: Start accepts. Automaton has 12912 states and 49548 transitions. Word has length 63 [2021-03-10 14:53:34,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 14:53:34,464 INFO L480 AbstractCegarLoop]: Abstraction has 12912 states and 49548 transitions. [2021-03-10 14:53:34,464 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:53:34,464 INFO L276 IsEmpty]: Start isEmpty. Operand 12912 states and 49548 transitions. [2021-03-10 14:53:34,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-03-10 14:53:34,478 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 14:53:34,478 INFO L519 BasicCegarLoop]: 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, 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, 1] [2021-03-10 14:53:34,478 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-03-10 14:53:34,478 INFO L428 AbstractCegarLoop]: === Iteration 34 === [thread0Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err0INUSE_VIOLATION, thread0Err6INUSE_VIOLATION, thread0Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Thread1of1ForFork4Err3INUSE_VIOLATION, thread0Thread1of1ForFork4Err9INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err7INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-10 14:53:34,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 14:53:34,479 INFO L82 PathProgramCache]: Analyzing trace with hash -1291520941, now seen corresponding path program 2 times [2021-03-10 14:53:34,479 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 14:53:34,479 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232820768] [2021-03-10 14:53:34,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 14:53:34,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 14:53:34,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 14:53:34,560 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232820768] [2021-03-10 14:53:34,561 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 14:53:34,561 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-10 14:53:34,561 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678465934] [2021-03-10 14:53:34,561 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-10 14:53:34,561 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 14:53:34,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-10 14:53:34,562 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-03-10 14:53:34,562 INFO L87 Difference]: Start difference. First operand 12912 states and 49548 transitions. Second operand has 10 states, 10 states have (on average 6.3) internal successors, (63), 10 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:53:34,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 14:53:34,833 INFO L93 Difference]: Finished difference Result 14363 states and 54318 transitions. [2021-03-10 14:53:34,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-10 14:53:34,834 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.3) internal successors, (63), 10 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2021-03-10 14:53:34,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 14:53:34,861 INFO L225 Difference]: With dead ends: 14363 [2021-03-10 14:53:34,861 INFO L226 Difference]: Without dead ends: 12901 [2021-03-10 14:53:34,861 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 151.2ms TimeCoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2021-03-10 14:53:34,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12901 states. [2021-03-10 14:53:35,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12901 to 12901. [2021-03-10 14:53:35,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12901 states, 12900 states have (on average 3.8390697674418606) internal successors, (49524), 12900 states have internal predecessors, (49524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:53:35,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12901 states to 12901 states and 49524 transitions. [2021-03-10 14:53:35,087 INFO L78 Accepts]: Start accepts. Automaton has 12901 states and 49524 transitions. Word has length 63 [2021-03-10 14:53:35,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 14:53:35,087 INFO L480 AbstractCegarLoop]: Abstraction has 12901 states and 49524 transitions. [2021-03-10 14:53:35,087 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 6.3) internal successors, (63), 10 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:53:35,087 INFO L276 IsEmpty]: Start isEmpty. Operand 12901 states and 49524 transitions. [2021-03-10 14:53:35,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-03-10 14:53:35,102 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 14:53:35,102 INFO L519 BasicCegarLoop]: 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, 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, 1] [2021-03-10 14:53:35,102 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-03-10 14:53:35,102 INFO L428 AbstractCegarLoop]: === Iteration 35 === [thread0Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err0INUSE_VIOLATION, thread0Err6INUSE_VIOLATION, thread0Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Thread1of1ForFork4Err3INUSE_VIOLATION, thread0Thread1of1ForFork4Err9INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err7INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-10 14:53:35,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 14:53:35,102 INFO L82 PathProgramCache]: Analyzing trace with hash 1775192255, now seen corresponding path program 3 times [2021-03-10 14:53:35,103 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 14:53:35,103 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639825971] [2021-03-10 14:53:35,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 14:53:35,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 14:53:35,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 14:53:35,221 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639825971] [2021-03-10 14:53:35,221 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 14:53:35,221 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-03-10 14:53:35,221 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137984474] [2021-03-10 14:53:35,221 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-10 14:53:35,222 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 14:53:35,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-10 14:53:35,222 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-03-10 14:53:35,222 INFO L87 Difference]: Start difference. First operand 12901 states and 49524 transitions. Second operand has 12 states, 12 states have (on average 5.25) internal successors, (63), 12 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:53:35,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 14:53:35,487 INFO L93 Difference]: Finished difference Result 14327 states and 54239 transitions. [2021-03-10 14:53:35,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-10 14:53:35,488 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.25) internal successors, (63), 12 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2021-03-10 14:53:35,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 14:53:35,514 INFO L225 Difference]: With dead ends: 14327 [2021-03-10 14:53:35,514 INFO L226 Difference]: Without dead ends: 12876 [2021-03-10 14:53:35,514 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 182.4ms TimeCoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2021-03-10 14:53:35,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12876 states. [2021-03-10 14:53:35,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12876 to 12876. [2021-03-10 14:53:35,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12876 states, 12875 states have (on average 3.84147572815534) internal successors, (49459), 12875 states have internal predecessors, (49459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:53:35,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12876 states to 12876 states and 49459 transitions. [2021-03-10 14:53:35,779 INFO L78 Accepts]: Start accepts. Automaton has 12876 states and 49459 transitions. Word has length 63 [2021-03-10 14:53:35,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 14:53:35,780 INFO L480 AbstractCegarLoop]: Abstraction has 12876 states and 49459 transitions. [2021-03-10 14:53:35,780 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 5.25) internal successors, (63), 12 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:53:35,780 INFO L276 IsEmpty]: Start isEmpty. Operand 12876 states and 49459 transitions. [2021-03-10 14:53:35,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-03-10 14:53:35,793 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 14:53:35,794 INFO L519 BasicCegarLoop]: 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, 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, 1] [2021-03-10 14:53:35,794 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-03-10 14:53:35,794 INFO L428 AbstractCegarLoop]: === Iteration 36 === [thread0Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err0INUSE_VIOLATION, thread0Err6INUSE_VIOLATION, thread0Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Thread1of1ForFork4Err3INUSE_VIOLATION, thread0Thread1of1ForFork4Err9INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err7INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-10 14:53:35,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 14:53:35,794 INFO L82 PathProgramCache]: Analyzing trace with hash 1862033959, now seen corresponding path program 4 times [2021-03-10 14:53:35,794 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 14:53:35,794 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793665543] [2021-03-10 14:53:35,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 14:53:35,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 14:53:35,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 14:53:35,941 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793665543] [2021-03-10 14:53:35,941 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 14:53:35,941 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-03-10 14:53:35,941 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059643015] [2021-03-10 14:53:35,941 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-03-10 14:53:35,941 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 14:53:35,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-03-10 14:53:35,942 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2021-03-10 14:53:35,942 INFO L87 Difference]: Start difference. First operand 12876 states and 49459 transitions. Second operand has 14 states, 14 states have (on average 4.5) internal successors, (63), 14 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:53:36,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 14:53:36,211 INFO L93 Difference]: Finished difference Result 14276 states and 54095 transitions. [2021-03-10 14:53:36,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-10 14:53:36,212 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.5) internal successors, (63), 14 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2021-03-10 14:53:36,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 14:53:36,238 INFO L225 Difference]: With dead ends: 14276 [2021-03-10 14:53:36,238 INFO L226 Difference]: Without dead ends: 12850 [2021-03-10 14:53:36,239 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 215.7ms TimeCoverageRelationStatistics Valid=92, Invalid=288, Unknown=0, NotChecked=0, Total=380 [2021-03-10 14:53:36,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12850 states. [2021-03-10 14:53:36,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12850 to 12850. [2021-03-10 14:53:36,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12850 states, 12849 states have (on average 3.841544089034166) internal successors, (49360), 12849 states have internal predecessors, (49360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:53:36,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12850 states to 12850 states and 49360 transitions. [2021-03-10 14:53:36,450 INFO L78 Accepts]: Start accepts. Automaton has 12850 states and 49360 transitions. Word has length 63 [2021-03-10 14:53:36,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 14:53:36,450 INFO L480 AbstractCegarLoop]: Abstraction has 12850 states and 49360 transitions. [2021-03-10 14:53:36,451 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 4.5) internal successors, (63), 14 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:53:36,451 INFO L276 IsEmpty]: Start isEmpty. Operand 12850 states and 49360 transitions. [2021-03-10 14:53:36,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-03-10 14:53:36,464 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 14:53:36,464 INFO L519 BasicCegarLoop]: 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, 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, 1] [2021-03-10 14:53:36,464 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-03-10 14:53:36,464 INFO L428 AbstractCegarLoop]: === Iteration 37 === [thread0Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err0INUSE_VIOLATION, thread0Err6INUSE_VIOLATION, thread0Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Thread1of1ForFork4Err3INUSE_VIOLATION, thread0Thread1of1ForFork4Err9INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err7INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-10 14:53:36,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 14:53:36,465 INFO L82 PathProgramCache]: Analyzing trace with hash -1400903887, now seen corresponding path program 5 times [2021-03-10 14:53:36,465 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 14:53:36,465 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96101200] [2021-03-10 14:53:36,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 14:53:36,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 14:53:36,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 14:53:36,614 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96101200] [2021-03-10 14:53:36,614 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 14:53:36,614 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-03-10 14:53:36,615 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938649097] [2021-03-10 14:53:36,615 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-03-10 14:53:36,615 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 14:53:36,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-03-10 14:53:36,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2021-03-10 14:53:36,615 INFO L87 Difference]: Start difference. First operand 12850 states and 49360 transitions. Second operand has 16 states, 16 states have (on average 3.9375) internal successors, (63), 16 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:53:36,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 14:53:36,900 INFO L93 Difference]: Finished difference Result 15826 states and 60088 transitions. [2021-03-10 14:53:36,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-10 14:53:36,900 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.9375) internal successors, (63), 16 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2021-03-10 14:53:36,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 14:53:36,930 INFO L225 Difference]: With dead ends: 15826 [2021-03-10 14:53:36,930 INFO L226 Difference]: Without dead ends: 14474 [2021-03-10 14:53:36,930 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 251.8ms TimeCoverageRelationStatistics Valid=141, Invalid=365, Unknown=0, NotChecked=0, Total=506 [2021-03-10 14:53:36,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14474 states. [2021-03-10 14:53:37,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14474 to 12842. [2021-03-10 14:53:37,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12842 states, 12841 states have (on average 3.84113386807881) internal successors, (49324), 12841 states have internal predecessors, (49324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:53:37,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12842 states to 12842 states and 49324 transitions. [2021-03-10 14:53:37,208 INFO L78 Accepts]: Start accepts. Automaton has 12842 states and 49324 transitions. Word has length 63 [2021-03-10 14:53:37,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 14:53:37,208 INFO L480 AbstractCegarLoop]: Abstraction has 12842 states and 49324 transitions. [2021-03-10 14:53:37,208 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 3.9375) internal successors, (63), 16 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:53:37,208 INFO L276 IsEmpty]: Start isEmpty. Operand 12842 states and 49324 transitions. [2021-03-10 14:53:37,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-03-10 14:53:37,222 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 14:53:37,223 INFO L519 BasicCegarLoop]: 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, 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, 1] [2021-03-10 14:53:37,223 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-03-10 14:53:37,223 INFO L428 AbstractCegarLoop]: === Iteration 38 === [thread0Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err0INUSE_VIOLATION, thread0Err6INUSE_VIOLATION, thread0Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Thread1of1ForFork4Err3INUSE_VIOLATION, thread0Thread1of1ForFork4Err9INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err7INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-10 14:53:37,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 14:53:37,223 INFO L82 PathProgramCache]: Analyzing trace with hash 577556357, now seen corresponding path program 6 times [2021-03-10 14:53:37,223 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 14:53:37,223 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197437282] [2021-03-10 14:53:37,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 14:53:37,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 14:53:37,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 14:53:37,382 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197437282] [2021-03-10 14:53:37,382 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 14:53:37,382 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-03-10 14:53:37,382 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920441052] [2021-03-10 14:53:37,383 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-03-10 14:53:37,383 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 14:53:37,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-03-10 14:53:37,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2021-03-10 14:53:37,384 INFO L87 Difference]: Start difference. First operand 12842 states and 49324 transitions. Second operand has 16 states, 16 states have (on average 3.9375) internal successors, (63), 16 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:53:37,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 14:53:37,653 INFO L93 Difference]: Finished difference Result 14114 states and 53540 transitions. [2021-03-10 14:53:37,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-10 14:53:37,653 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.9375) internal successors, (63), 16 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2021-03-10 14:53:37,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 14:53:37,679 INFO L225 Difference]: With dead ends: 14114 [2021-03-10 14:53:37,679 INFO L226 Difference]: Without dead ends: 12794 [2021-03-10 14:53:37,680 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 244.1ms TimeCoverageRelationStatistics Valid=133, Invalid=329, Unknown=0, NotChecked=0, Total=462 [2021-03-10 14:53:37,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12794 states. [2021-03-10 14:53:37,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12794 to 12794. [2021-03-10 14:53:37,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12794 states, 12793 states have (on average 3.8361604002188696) internal successors, (49076), 12793 states have internal predecessors, (49076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:53:37,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12794 states to 12794 states and 49076 transitions. [2021-03-10 14:53:37,894 INFO L78 Accepts]: Start accepts. Automaton has 12794 states and 49076 transitions. Word has length 63 [2021-03-10 14:53:37,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 14:53:37,894 INFO L480 AbstractCegarLoop]: Abstraction has 12794 states and 49076 transitions. [2021-03-10 14:53:37,894 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 3.9375) internal successors, (63), 16 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:53:37,894 INFO L276 IsEmpty]: Start isEmpty. Operand 12794 states and 49076 transitions. [2021-03-10 14:53:37,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-03-10 14:53:37,909 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 14:53:37,909 INFO L519 BasicCegarLoop]: 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, 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, 1] [2021-03-10 14:53:37,909 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-03-10 14:53:37,909 INFO L428 AbstractCegarLoop]: === Iteration 39 === [thread0Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err0INUSE_VIOLATION, thread0Err6INUSE_VIOLATION, thread0Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Thread1of1ForFork4Err3INUSE_VIOLATION, thread0Thread1of1ForFork4Err9INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err7INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-10 14:53:37,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 14:53:37,909 INFO L82 PathProgramCache]: Analyzing trace with hash -194017185, now seen corresponding path program 7 times [2021-03-10 14:53:37,909 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 14:53:37,909 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62789400] [2021-03-10 14:53:37,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 14:53:37,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 14:53:38,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 14:53:38,226 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62789400] [2021-03-10 14:53:38,226 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 14:53:38,226 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-03-10 14:53:38,226 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946922478] [2021-03-10 14:53:38,226 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-03-10 14:53:38,226 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 14:53:38,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-03-10 14:53:38,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2021-03-10 14:53:38,227 INFO L87 Difference]: Start difference. First operand 12794 states and 49076 transitions. Second operand has 19 states, 19 states have (on average 3.3157894736842106) internal successors, (63), 19 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:53:38,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 14:53:38,943 INFO L93 Difference]: Finished difference Result 13034 states and 49236 transitions. [2021-03-10 14:53:38,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-03-10 14:53:38,943 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.3157894736842106) internal successors, (63), 19 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2021-03-10 14:53:38,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 14:53:38,961 INFO L225 Difference]: With dead ends: 13034 [2021-03-10 14:53:38,961 INFO L226 Difference]: Without dead ends: 9122 [2021-03-10 14:53:38,962 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 646.9ms TimeCoverageRelationStatistics Valid=192, Invalid=620, Unknown=0, NotChecked=0, Total=812 [2021-03-10 14:53:38,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9122 states. [2021-03-10 14:53:39,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9122 to 8114. [2021-03-10 14:53:39,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8114 states, 8113 states have (on average 3.64106988783434) internal successors, (29540), 8113 states have internal predecessors, (29540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:53:39,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8114 states to 8114 states and 29540 transitions. [2021-03-10 14:53:39,091 INFO L78 Accepts]: Start accepts. Automaton has 8114 states and 29540 transitions. Word has length 63 [2021-03-10 14:53:39,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 14:53:39,091 INFO L480 AbstractCegarLoop]: Abstraction has 8114 states and 29540 transitions. [2021-03-10 14:53:39,091 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 3.3157894736842106) internal successors, (63), 19 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:53:39,091 INFO L276 IsEmpty]: Start isEmpty. Operand 8114 states and 29540 transitions. [2021-03-10 14:53:39,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-03-10 14:53:39,100 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 14:53:39,100 INFO L519 BasicCegarLoop]: 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, 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, 1, 1, 1] [2021-03-10 14:53:39,100 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-03-10 14:53:39,100 INFO L428 AbstractCegarLoop]: === Iteration 40 === [thread0Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err0INUSE_VIOLATION, thread0Err6INUSE_VIOLATION, thread0Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Thread1of1ForFork4Err3INUSE_VIOLATION, thread0Thread1of1ForFork4Err9INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err7INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-10 14:53:39,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 14:53:39,101 INFO L82 PathProgramCache]: Analyzing trace with hash -3712672, now seen corresponding path program 1 times [2021-03-10 14:53:39,101 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 14:53:39,101 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680247421] [2021-03-10 14:53:39,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 14:53:39,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 14:53:39,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 14:53:39,282 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680247421] [2021-03-10 14:53:39,282 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 14:53:39,282 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-03-10 14:53:39,282 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234746621] [2021-03-10 14:53:39,283 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-03-10 14:53:39,283 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 14:53:39,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-03-10 14:53:39,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2021-03-10 14:53:39,283 INFO L87 Difference]: Start difference. First operand 8114 states and 29540 transitions. Second operand has 14 states, 14 states have (on average 4.642857142857143) internal successors, (65), 14 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:53:39,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 14:53:39,815 INFO L93 Difference]: Finished difference Result 9500 states and 34498 transitions. [2021-03-10 14:53:39,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-10 14:53:39,815 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.642857142857143) internal successors, (65), 14 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2021-03-10 14:53:39,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 14:53:39,832 INFO L225 Difference]: With dead ends: 9500 [2021-03-10 14:53:39,832 INFO L226 Difference]: Without dead ends: 9068 [2021-03-10 14:53:39,832 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 457.6ms TimeCoverageRelationStatistics Valid=119, Invalid=387, Unknown=0, NotChecked=0, Total=506 [2021-03-10 14:53:39,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9068 states. [2021-03-10 14:53:39,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9068 to 8297. [2021-03-10 14:53:39,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8297 states, 8296 states have (on average 3.6294599807135968) internal successors, (30110), 8296 states have internal predecessors, (30110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:53:39,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8297 states to 8297 states and 30110 transitions. [2021-03-10 14:53:39,958 INFO L78 Accepts]: Start accepts. Automaton has 8297 states and 30110 transitions. Word has length 65 [2021-03-10 14:53:39,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 14:53:39,958 INFO L480 AbstractCegarLoop]: Abstraction has 8297 states and 30110 transitions. [2021-03-10 14:53:39,958 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 4.642857142857143) internal successors, (65), 14 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:53:39,958 INFO L276 IsEmpty]: Start isEmpty. Operand 8297 states and 30110 transitions. [2021-03-10 14:53:39,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-03-10 14:53:39,967 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 14:53:39,967 INFO L519 BasicCegarLoop]: 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, 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, 1, 1, 1] [2021-03-10 14:53:39,967 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-03-10 14:53:39,968 INFO L428 AbstractCegarLoop]: === Iteration 41 === [thread0Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err0INUSE_VIOLATION, thread0Err6INUSE_VIOLATION, thread0Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Thread1of1ForFork4Err3INUSE_VIOLATION, thread0Thread1of1ForFork4Err9INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err7INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-10 14:53:39,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 14:53:39,968 INFO L82 PathProgramCache]: Analyzing trace with hash 979242477, now seen corresponding path program 1 times [2021-03-10 14:53:39,968 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 14:53:39,968 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554773395] [2021-03-10 14:53:39,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 14:53:39,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 14:53:40,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 14:53:40,158 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554773395] [2021-03-10 14:53:40,158 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 14:53:40,158 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-03-10 14:53:40,158 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545168363] [2021-03-10 14:53:40,159 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-03-10 14:53:40,159 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 14:53:40,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-03-10 14:53:40,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2021-03-10 14:53:40,159 INFO L87 Difference]: Start difference. First operand 8297 states and 30110 transitions. Second operand has 14 states, 14 states have (on average 4.642857142857143) internal successors, (65), 14 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:53:40,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 14:53:40,632 INFO L93 Difference]: Finished difference Result 8879 states and 31980 transitions. [2021-03-10 14:53:40,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-10 14:53:40,632 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.642857142857143) internal successors, (65), 14 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2021-03-10 14:53:40,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 14:53:40,648 INFO L225 Difference]: With dead ends: 8879 [2021-03-10 14:53:40,648 INFO L226 Difference]: Without dead ends: 8159 [2021-03-10 14:53:40,648 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 466.9ms TimeCoverageRelationStatistics Valid=119, Invalid=387, Unknown=0, NotChecked=0, Total=506 [2021-03-10 14:53:40,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8159 states. [2021-03-10 14:53:40,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8159 to 8144. [2021-03-10 14:53:40,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8144 states, 8143 states have (on average 3.637111629620533) internal successors, (29617), 8143 states have internal predecessors, (29617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:53:40,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8144 states to 8144 states and 29617 transitions. [2021-03-10 14:53:40,767 INFO L78 Accepts]: Start accepts. Automaton has 8144 states and 29617 transitions. Word has length 65 [2021-03-10 14:53:40,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 14:53:40,767 INFO L480 AbstractCegarLoop]: Abstraction has 8144 states and 29617 transitions. [2021-03-10 14:53:40,767 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 4.642857142857143) internal successors, (65), 14 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:53:40,767 INFO L276 IsEmpty]: Start isEmpty. Operand 8144 states and 29617 transitions. [2021-03-10 14:53:40,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-03-10 14:53:40,777 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 14:53:40,777 INFO L519 BasicCegarLoop]: 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, 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, 1, 1, 1] [2021-03-10 14:53:40,777 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-03-10 14:53:40,777 INFO L428 AbstractCegarLoop]: === Iteration 42 === [thread0Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err0INUSE_VIOLATION, thread0Err6INUSE_VIOLATION, thread0Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Thread1of1ForFork4Err3INUSE_VIOLATION, thread0Thread1of1ForFork4Err9INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err7INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-10 14:53:40,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 14:53:40,777 INFO L82 PathProgramCache]: Analyzing trace with hash -1606587144, now seen corresponding path program 2 times [2021-03-10 14:53:40,777 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 14:53:40,777 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025777425] [2021-03-10 14:53:40,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 14:53:40,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 14:53:41,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 14:53:41,100 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025777425] [2021-03-10 14:53:41,100 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 14:53:41,100 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-03-10 14:53:41,100 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458903365] [2021-03-10 14:53:41,100 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-03-10 14:53:41,100 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 14:53:41,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-03-10 14:53:41,101 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2021-03-10 14:53:41,101 INFO L87 Difference]: Start difference. First operand 8144 states and 29617 transitions. Second operand has 16 states, 16 states have (on average 4.0625) internal successors, (65), 16 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:53:41,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 14:53:41,826 INFO L93 Difference]: Finished difference Result 9692 states and 35140 transitions. [2021-03-10 14:53:41,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-03-10 14:53:41,826 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 4.0625) internal successors, (65), 16 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2021-03-10 14:53:41,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 14:53:41,842 INFO L225 Difference]: With dead ends: 9692 [2021-03-10 14:53:41,842 INFO L226 Difference]: Without dead ends: 9128 [2021-03-10 14:53:41,843 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 733.6ms TimeCoverageRelationStatistics Valid=159, Invalid=543, Unknown=0, NotChecked=0, Total=702 [2021-03-10 14:53:41,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9128 states. [2021-03-10 14:53:41,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9128 to 8342. [2021-03-10 14:53:41,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8342 states, 8341 states have (on average 3.627143028413859) internal successors, (30254), 8341 states have internal predecessors, (30254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:53:41,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8342 states to 8342 states and 30254 transitions. [2021-03-10 14:53:41,984 INFO L78 Accepts]: Start accepts. Automaton has 8342 states and 30254 transitions. Word has length 65 [2021-03-10 14:53:41,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 14:53:41,984 INFO L480 AbstractCegarLoop]: Abstraction has 8342 states and 30254 transitions. [2021-03-10 14:53:41,984 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 4.0625) internal successors, (65), 16 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:53:41,984 INFO L276 IsEmpty]: Start isEmpty. Operand 8342 states and 30254 transitions. [2021-03-10 14:53:41,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-03-10 14:53:41,993 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 14:53:41,993 INFO L519 BasicCegarLoop]: 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, 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, 1, 1, 1] [2021-03-10 14:53:41,994 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-03-10 14:53:41,994 INFO L428 AbstractCegarLoop]: === Iteration 43 === [thread0Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err0INUSE_VIOLATION, thread0Err6INUSE_VIOLATION, thread0Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Thread1of1ForFork4Err3INUSE_VIOLATION, thread0Thread1of1ForFork4Err9INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err7INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-10 14:53:41,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 14:53:41,994 INFO L82 PathProgramCache]: Analyzing trace with hash -623631995, now seen corresponding path program 2 times [2021-03-10 14:53:41,994 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 14:53:41,994 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203874052] [2021-03-10 14:53:41,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 14:53:42,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 14:53:42,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 14:53:42,189 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203874052] [2021-03-10 14:53:42,189 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 14:53:42,189 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-03-10 14:53:42,189 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244054421] [2021-03-10 14:53:42,189 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-03-10 14:53:42,189 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 14:53:42,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-03-10 14:53:42,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2021-03-10 14:53:42,190 INFO L87 Difference]: Start difference. First operand 8342 states and 30254 transitions. Second operand has 16 states, 16 states have (on average 4.0625) internal successors, (65), 16 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:53:42,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 14:53:42,496 INFO L93 Difference]: Finished difference Result 10757 states and 39175 transitions. [2021-03-10 14:53:42,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-10 14:53:42,496 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 4.0625) internal successors, (65), 16 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2021-03-10 14:53:42,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 14:53:42,514 INFO L225 Difference]: With dead ends: 10757 [2021-03-10 14:53:42,514 INFO L226 Difference]: Without dead ends: 10052 [2021-03-10 14:53:42,515 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 297.7ms TimeCoverageRelationStatistics Valid=142, Invalid=364, Unknown=0, NotChecked=0, Total=506 [2021-03-10 14:53:42,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10052 states. [2021-03-10 14:53:42,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10052 to 7976. [2021-03-10 14:53:42,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7976 states, 7975 states have (on average 3.6394984326018807) internal successors, (29025), 7975 states have internal predecessors, (29025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:53:42,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7976 states to 7976 states and 29025 transitions. [2021-03-10 14:53:42,645 INFO L78 Accepts]: Start accepts. Automaton has 7976 states and 29025 transitions. Word has length 65 [2021-03-10 14:53:42,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 14:53:42,645 INFO L480 AbstractCegarLoop]: Abstraction has 7976 states and 29025 transitions. [2021-03-10 14:53:42,646 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 4.0625) internal successors, (65), 16 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:53:42,646 INFO L276 IsEmpty]: Start isEmpty. Operand 7976 states and 29025 transitions. [2021-03-10 14:53:42,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-03-10 14:53:42,654 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 14:53:42,654 INFO L519 BasicCegarLoop]: 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, 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, 1, 1, 1] [2021-03-10 14:53:42,654 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-03-10 14:53:42,654 INFO L428 AbstractCegarLoop]: === Iteration 44 === [thread0Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err0INUSE_VIOLATION, thread0Err6INUSE_VIOLATION, thread0Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Thread1of1ForFork4Err3INUSE_VIOLATION, thread0Thread1of1ForFork4Err9INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err7INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-10 14:53:42,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 14:53:42,655 INFO L82 PathProgramCache]: Analyzing trace with hash 321554734, now seen corresponding path program 3 times [2021-03-10 14:53:42,655 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 14:53:42,655 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24760041] [2021-03-10 14:53:42,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 14:53:42,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 14:53:42,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 14:53:42,885 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24760041] [2021-03-10 14:53:42,885 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 14:53:42,885 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 14:53:42,885 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037045866] [2021-03-10 14:53:42,886 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 14:53:42,886 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 14:53:42,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 14:53:42,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=241, Unknown=0, NotChecked=0, Total=306 [2021-03-10 14:53:42,886 INFO L87 Difference]: Start difference. First operand 7976 states and 29025 transitions. Second operand has 18 states, 18 states have (on average 3.611111111111111) internal successors, (65), 18 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:53:43,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 14:53:43,313 INFO L93 Difference]: Finished difference Result 9704 states and 35089 transitions. [2021-03-10 14:53:43,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-10 14:53:43,314 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.611111111111111) internal successors, (65), 18 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2021-03-10 14:53:43,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 14:53:43,329 INFO L225 Difference]: With dead ends: 9704 [2021-03-10 14:53:43,330 INFO L226 Difference]: Without dead ends: 8549 [2021-03-10 14:53:43,330 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 394.7ms TimeCoverageRelationStatistics Valid=161, Invalid=391, Unknown=0, NotChecked=0, Total=552 [2021-03-10 14:53:43,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8549 states. [2021-03-10 14:53:43,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8549 to 7883. [2021-03-10 14:53:43,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7883 states, 7882 states have (on average 3.64311088556204) internal successors, (28715), 7882 states have internal predecessors, (28715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:53:43,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7883 states to 7883 states and 28715 transitions. [2021-03-10 14:53:43,450 INFO L78 Accepts]: Start accepts. Automaton has 7883 states and 28715 transitions. Word has length 65 [2021-03-10 14:53:43,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 14:53:43,450 INFO L480 AbstractCegarLoop]: Abstraction has 7883 states and 28715 transitions. [2021-03-10 14:53:43,451 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 3.611111111111111) internal successors, (65), 18 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:53:43,451 INFO L276 IsEmpty]: Start isEmpty. Operand 7883 states and 28715 transitions. [2021-03-10 14:53:43,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-03-10 14:53:43,459 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 14:53:43,459 INFO L519 BasicCegarLoop]: 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, 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, 1, 1, 1] [2021-03-10 14:53:43,459 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-03-10 14:53:43,459 INFO L428 AbstractCegarLoop]: === Iteration 45 === [thread0Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err0INUSE_VIOLATION, thread0Err6INUSE_VIOLATION, thread0Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Thread1of1ForFork4Err3INUSE_VIOLATION, thread0Thread1of1ForFork4Err9INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err7INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-10 14:53:43,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 14:53:43,459 INFO L82 PathProgramCache]: Analyzing trace with hash 1304509883, now seen corresponding path program 3 times [2021-03-10 14:53:43,459 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 14:53:43,460 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312706824] [2021-03-10 14:53:43,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 14:53:43,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 14:53:43,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 14:53:43,763 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312706824] [2021-03-10 14:53:43,763 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 14:53:43,763 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 14:53:43,763 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201850685] [2021-03-10 14:53:43,763 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 14:53:43,763 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 14:53:43,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 14:53:43,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=253, Unknown=0, NotChecked=0, Total=306 [2021-03-10 14:53:43,764 INFO L87 Difference]: Start difference. First operand 7883 states and 28715 transitions. Second operand has 18 states, 18 states have (on average 3.611111111111111) internal successors, (65), 18 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:53:44,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 14:53:44,484 INFO L93 Difference]: Finished difference Result 5810 states and 20714 transitions. [2021-03-10 14:53:44,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-03-10 14:53:44,484 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.611111111111111) internal successors, (65), 18 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2021-03-10 14:53:44,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 14:53:44,493 INFO L225 Difference]: With dead ends: 5810 [2021-03-10 14:53:44,493 INFO L226 Difference]: Without dead ends: 5225 [2021-03-10 14:53:44,493 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 753.8ms TimeCoverageRelationStatistics Valid=178, Invalid=524, Unknown=0, NotChecked=0, Total=702 [2021-03-10 14:53:44,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5225 states. [2021-03-10 14:53:44,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5225 to 4865. [2021-03-10 14:53:44,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4865 states, 4864 states have (on average 3.5886101973684212) internal successors, (17455), 4864 states have internal predecessors, (17455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:53:44,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4865 states to 4865 states and 17455 transitions. [2021-03-10 14:53:44,558 INFO L78 Accepts]: Start accepts. Automaton has 4865 states and 17455 transitions. Word has length 65 [2021-03-10 14:53:44,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 14:53:44,558 INFO L480 AbstractCegarLoop]: Abstraction has 4865 states and 17455 transitions. [2021-03-10 14:53:44,559 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 3.611111111111111) internal successors, (65), 18 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:53:44,559 INFO L276 IsEmpty]: Start isEmpty. Operand 4865 states and 17455 transitions. [2021-03-10 14:53:44,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-03-10 14:53:44,564 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 14:53:44,564 INFO L519 BasicCegarLoop]: 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, 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, 1, 1, 1] [2021-03-10 14:53:44,564 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-03-10 14:53:44,565 INFO L428 AbstractCegarLoop]: === Iteration 46 === [thread0Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err0INUSE_VIOLATION, thread0Err6INUSE_VIOLATION, thread0Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Thread1of1ForFork4Err3INUSE_VIOLATION, thread0Thread1of1ForFork4Err9INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err7INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-10 14:53:44,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 14:53:44,565 INFO L82 PathProgramCache]: Analyzing trace with hash 216830028, now seen corresponding path program 4 times [2021-03-10 14:53:44,565 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 14:53:44,565 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294263656] [2021-03-10 14:53:44,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 14:53:44,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 14:53:44,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 14:53:44,800 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294263656] [2021-03-10 14:53:44,800 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 14:53:44,800 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 14:53:44,800 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345367297] [2021-03-10 14:53:44,800 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 14:53:44,800 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 14:53:44,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 14:53:44,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=241, Unknown=0, NotChecked=0, Total=306 [2021-03-10 14:53:44,801 INFO L87 Difference]: Start difference. First operand 4865 states and 17455 transitions. Second operand has 18 states, 18 states have (on average 3.611111111111111) internal successors, (65), 18 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:53:45,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 14:53:45,128 INFO L93 Difference]: Finished difference Result 1793 states and 5935 transitions. [2021-03-10 14:53:45,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-10 14:53:45,128 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.611111111111111) internal successors, (65), 18 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2021-03-10 14:53:45,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 14:53:45,129 INFO L225 Difference]: With dead ends: 1793 [2021-03-10 14:53:45,129 INFO L226 Difference]: Without dead ends: 0 [2021-03-10 14:53:45,129 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 390.5ms TimeCoverageRelationStatistics Valid=161, Invalid=391, Unknown=0, NotChecked=0, Total=552 [2021-03-10 14:53:45,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-03-10 14:53:45,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-03-10 14:53:45,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:53:45,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-03-10 14:53:45,130 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 65 [2021-03-10 14:53:45,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 14:53:45,130 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-03-10 14:53:45,130 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 3.611111111111111) internal successors, (65), 18 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 14:53:45,130 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-03-10 14:53:45,130 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-03-10 14:53:45,130 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2021-03-10 14:53:45,133 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.03 02:53:45 BasicIcfg [2021-03-10 14:53:45,133 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-10 14:53:45,134 INFO L168 Benchmark]: Toolchain (without parser) took 84244.39 ms. Allocated memory was 255.9 MB in the beginning and 15.7 GB in the end (delta: 15.4 GB). Free memory was 236.6 MB in the beginning and 11.9 GB in the end (delta: -11.7 GB). Peak memory consumption was 3.8 GB. Max. memory is 16.0 GB. [2021-03-10 14:53:45,134 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 255.9 MB. Free memory is still 237.4 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-10 14:53:45,134 INFO L168 Benchmark]: CACSL2BoogieTranslator took 593.26 ms. Allocated memory was 255.9 MB in the beginning and 356.5 MB in the end (delta: 100.7 MB). Free memory was 236.0 MB in the beginning and 334.9 MB in the end (delta: -98.9 MB). Peak memory consumption was 58.0 MB. Max. memory is 16.0 GB. [2021-03-10 14:53:45,134 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.75 ms. Allocated memory is still 356.5 MB. Free memory was 334.9 MB in the beginning and 332.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-10 14:53:45,134 INFO L168 Benchmark]: Boogie Preprocessor took 14.92 ms. Allocated memory is still 356.5 MB. Free memory was 332.9 MB in the beginning and 330.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-10 14:53:45,134 INFO L168 Benchmark]: RCFGBuilder took 421.38 ms. Allocated memory is still 356.5 MB. Free memory was 330.8 MB in the beginning and 303.6 MB in the end (delta: 27.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.0 GB. [2021-03-10 14:53:45,134 INFO L168 Benchmark]: TraceAbstraction took 83169.03 ms. Allocated memory was 356.5 MB in the beginning and 15.7 GB in the end (delta: 15.3 GB). Free memory was 302.4 MB in the beginning and 11.9 GB in the end (delta: -11.6 GB). Peak memory consumption was 3.7 GB. Max. memory is 16.0 GB. [2021-03-10 14:53:45,134 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 255.9 MB. Free memory is still 237.4 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 593.26 ms. Allocated memory was 255.9 MB in the beginning and 356.5 MB in the end (delta: 100.7 MB). Free memory was 236.0 MB in the beginning and 334.9 MB in the end (delta: -98.9 MB). Peak memory consumption was 58.0 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 39.75 ms. Allocated memory is still 356.5 MB. Free memory was 334.9 MB in the beginning and 332.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 14.92 ms. Allocated memory is still 356.5 MB. Free memory was 332.9 MB in the beginning and 330.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 421.38 ms. Allocated memory is still 356.5 MB. Free memory was 330.8 MB in the beginning and 303.6 MB in the end (delta: 27.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.0 GB. * TraceAbstraction took 83169.03 ms. Allocated memory was 356.5 MB in the beginning and 15.7 GB in the end (delta: 15.3 GB). Free memory was 302.4 MB in the beginning and 11.9 GB in the end (delta: -11.6 GB). Peak memory consumption was 3.7 GB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1123]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 103 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 82911.3ms, OverallIterations: 46, TraceHistogramMax: 1, EmptinessCheckTime: 2023.0ms, AutomataDifference: 31868.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 4977.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 8179 SDtfs, 19785 SDslu, 33236 SDs, 0 SdLazy, 13669 SolverSat, 2563 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6775.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1003 GetRequests, 96 SyntacticMatches, 50 SemanticMatches, 857 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2331 ImplicationChecksByTransitivity, 14591.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=63242occurred in iteration=0, InterpolantAutomatonStates: 589, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 35624.2ms AutomataMinimizationTime, 46 MinimizatonAttempts, 185561 StatesRemovedByMinimization, 39 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 76.6ms SsaConstructionTime, 522.8ms SatisfiabilityAnalysisTime, 7458.7ms InterpolantComputationTime, 2682 NumberOfCodeBlocks, 2682 NumberOfCodeBlocksAsserted, 46 NumberOfCheckSat, 2636 ConstructedInterpolants, 0 QuantifiedInterpolants, 34464 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 46 InterpolantComputations, 46 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 correct! Received shutdown request...