/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-SemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread/lazy01.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-11 09:16:34,744 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-11 09:16:34,745 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-11 09:16:34,762 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-11 09:16:34,762 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-11 09:16:34,763 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-11 09:16:34,764 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-11 09:16:34,765 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-11 09:16:34,766 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-11 09:16:34,766 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-11 09:16:34,767 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-11 09:16:34,768 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-11 09:16:34,768 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-11 09:16:34,769 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-11 09:16:34,769 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-11 09:16:34,770 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-11 09:16:34,770 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-11 09:16:34,771 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-11 09:16:34,772 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-11 09:16:34,773 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-11 09:16:34,774 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-11 09:16:34,775 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-11 09:16:34,775 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-11 09:16:34,776 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-11 09:16:34,778 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-03-11 09:16:34,778 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-03-11 09:16:34,778 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-03-11 09:16:34,779 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-03-11 09:16:34,779 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-03-11 09:16:34,780 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-03-11 09:16:34,780 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-11 09:16:34,780 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-11 09:16:34,781 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-11 09:16:34,781 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-11 09:16:34,782 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-11 09:16:34,782 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-11 09:16:34,782 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-11 09:16:34,783 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-11 09:16:34,783 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-11 09:16:34,783 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-11 09:16:34,784 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-11 09:16:34,784 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-SemanticLbe.epf [2021-03-11 09:16:34,802 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-11 09:16:34,802 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-11 09:16:34,805 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-11 09:16:34,805 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-11 09:16:34,805 INFO L138 SettingsManager]: * Use SBE=true [2021-03-11 09:16:34,805 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-11 09:16:34,805 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-11 09:16:34,805 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-11 09:16:34,805 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-11 09:16:34,805 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-11 09:16:34,806 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-11 09:16:34,806 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-11 09:16:34,806 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-11 09:16:34,806 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-11 09:16:34,806 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-11 09:16:34,807 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-11 09:16:34,807 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-11 09:16:34,807 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-11 09:16:34,807 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-11 09:16:34,807 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-11 09:16:34,807 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-11 09:16:34,807 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-11 09:16:34,807 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-11 09:16:34,807 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-11 09:16:34,808 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-11 09:16:34,808 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-11 09:16:34,808 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-11 09:16:34,808 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-03-11 09:16:34,808 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-11 09:16:35,019 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-11 09:16:35,032 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-11 09:16:35,033 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-11 09:16:35,034 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-11 09:16:35,034 INFO L275 PluginConnector]: CDTParser initialized [2021-03-11 09:16:35,035 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/lazy01.i [2021-03-11 09:16:35,079 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94cfb9efb/49be4169fbf04f31b9be03a8ca3d2e88/FLAG0d04f7b48 [2021-03-11 09:16:35,490 INFO L306 CDTParser]: Found 1 translation units. [2021-03-11 09:16:35,491 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/lazy01.i [2021-03-11 09:16:35,513 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94cfb9efb/49be4169fbf04f31b9be03a8ca3d2e88/FLAG0d04f7b48 [2021-03-11 09:16:35,858 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94cfb9efb/49be4169fbf04f31b9be03a8ca3d2e88 [2021-03-11 09:16:35,859 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-11 09:16:35,862 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-11 09:16:35,863 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-11 09:16:35,863 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-11 09:16:35,870 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-11 09:16:35,870 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.03 09:16:35" (1/1) ... [2021-03-11 09:16:35,871 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19a673af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 09:16:35, skipping insertion in model container [2021-03-11 09:16:35,871 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.03 09:16:35" (1/1) ... [2021-03-11 09:16:35,876 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-11 09:16:35,900 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-11 09:16:36,111 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/lazy01.i[31042,31055] [2021-03-11 09:16:36,117 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-11 09:16:36,126 INFO L203 MainTranslator]: Completed pre-run [2021-03-11 09:16:36,157 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/lazy01.i[31042,31055] [2021-03-11 09:16:36,163 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-11 09:16:36,217 INFO L208 MainTranslator]: Completed translation [2021-03-11 09:16:36,217 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 09:16:36 WrapperNode [2021-03-11 09:16:36,217 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-11 09:16:36,218 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-11 09:16:36,218 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-11 09:16:36,219 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-11 09:16:36,224 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 09:16:36" (1/1) ... [2021-03-11 09:16:36,249 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 09:16:36" (1/1) ... [2021-03-11 09:16:36,260 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-11 09:16:36,261 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-11 09:16:36,261 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-11 09:16:36,261 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-11 09:16:36,266 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 09:16:36" (1/1) ... [2021-03-11 09:16:36,266 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 09:16:36" (1/1) ... [2021-03-11 09:16:36,268 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 09:16:36" (1/1) ... [2021-03-11 09:16:36,268 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 09:16:36" (1/1) ... [2021-03-11 09:16:36,270 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 09:16:36" (1/1) ... [2021-03-11 09:16:36,271 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 09:16:36" (1/1) ... [2021-03-11 09:16:36,272 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 09:16:36" (1/1) ... [2021-03-11 09:16:36,274 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-11 09:16:36,274 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-11 09:16:36,274 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-11 09:16:36,274 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-11 09:16:36,275 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 09:16:36" (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 [2021-03-11 09:16:36,321 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-03-11 09:16:36,321 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-03-11 09:16:36,321 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-03-11 09:16:36,322 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-03-11 09:16:36,322 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-03-11 09:16:36,322 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-03-11 09:16:36,323 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-03-11 09:16:36,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-11 09:16:36,323 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-03-11 09:16:36,323 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-11 09:16:36,323 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-11 09:16:36,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-11 09:16:36,324 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-11 09:16:36,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-11 09:16:36,325 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-11 09:16:36,669 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-11 09:16:36,669 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-03-11 09:16:36,670 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 09:16:36 BoogieIcfgContainer [2021-03-11 09:16:36,670 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-11 09:16:36,671 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-11 09:16:36,671 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-11 09:16:36,673 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-11 09:16:36,673 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.03 09:16:35" (1/3) ... [2021-03-11 09:16:36,674 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@128641b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.03 09:16:36, skipping insertion in model container [2021-03-11 09:16:36,674 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 09:16:36" (2/3) ... [2021-03-11 09:16:36,674 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@128641b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.03 09:16:36, skipping insertion in model container [2021-03-11 09:16:36,674 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 09:16:36" (3/3) ... [2021-03-11 09:16:36,675 INFO L111 eAbstractionObserver]: Analyzing ICFG lazy01.i [2021-03-11 09:16:36,681 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-03-11 09:16:36,681 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-11 09:16:36,684 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-11 09:16:36,684 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-11 09:16:36,713 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:16:36,713 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:16:36,713 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:16:36,713 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:16:36,713 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:16:36,713 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:16:36,713 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:16:36,713 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:16:36,714 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:16:36,714 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:16:36,714 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:16:36,714 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:16:36,714 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:16:36,714 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:16:36,714 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:16:36,714 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:16:36,714 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:16:36,715 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:16:36,715 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:16:36,715 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:16:36,715 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:16:36,715 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:16:36,715 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:16:36,716 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:16:36,716 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:16:36,716 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:16:36,716 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:16:36,717 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:16:36,717 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:16:36,717 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:16:36,717 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:16:36,717 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:16:36,718 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:16:36,719 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:16:36,719 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:16:36,719 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:16:36,719 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:16:36,719 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:16:36,720 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:16:36,720 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:16:36,720 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:16:36,720 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:16:36,720 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:16:36,721 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:16:36,721 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:16:36,721 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:16:36,721 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:16:36,721 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:16:36,721 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:16:36,721 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:16:36,725 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:16:36,727 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:16:36,727 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:16:36,727 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:16:36,728 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:16:36,728 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:16:36,728 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:16:36,728 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:16:36,728 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:16:36,729 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:16:36,732 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:16:36,733 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:16:36,733 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:16:36,733 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:16:36,733 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:16:36,734 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:16:36,734 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:16:36,734 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:16:36,734 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:16:36,734 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:16:36,742 INFO L149 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2021-03-11 09:16:36,753 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-03-11 09:16:36,772 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-11 09:16:36,772 INFO L377 AbstractCegarLoop]: Hoare is true [2021-03-11 09:16:36,772 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-11 09:16:36,772 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-11 09:16:36,773 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-11 09:16:36,773 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-11 09:16:36,773 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-11 09:16:36,773 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-11 09:16:36,783 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-11 09:16:36,799 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 86 places, 83 transitions, 208 flow [2021-03-11 09:16:36,800 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 86 places, 83 transitions, 208 flow [2021-03-11 09:16:36,802 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 86 places, 83 transitions, 208 flow [2021-03-11 09:16:36,840 INFO L129 PetriNetUnfolder]: 6/91 cut-off events. [2021-03-11 09:16:36,841 INFO L130 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2021-03-11 09:16:36,843 INFO L84 FinitePrefix]: Finished finitePrefix Result has 113 conditions, 91 events. 6/91 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 133 event pairs, 0 based on Foata normal form. 0/89 useless extension candidates. Maximal degree in co-relation 53. Up to 6 conditions per place. [2021-03-11 09:16:36,845 INFO L116 LiptonReduction]: Number of co-enabled transitions 1168 [2021-03-11 09:16:39,011 WARN L205 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 111 [2021-03-11 09:16:39,136 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2021-03-11 09:16:39,444 WARN L205 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 111 [2021-03-11 09:16:39,572 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2021-03-11 09:16:39,576 INFO L131 LiptonReduction]: Checked pairs total: 5375 [2021-03-11 09:16:39,576 INFO L133 LiptonReduction]: Total number of compositions: 52 [2021-03-11 09:16:39,582 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 40 places, 37 transitions, 116 flow [2021-03-11 09:16:39,606 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 492 states, 490 states have (on average 2.769387755102041) internal successors, (1357), 491 states have internal predecessors, (1357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:16:39,608 INFO L276 IsEmpty]: Start isEmpty. Operand has 492 states, 490 states have (on average 2.769387755102041) internal successors, (1357), 491 states have internal predecessors, (1357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:16:39,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-03-11 09:16:39,612 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 09:16:39,612 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 09:16:39,612 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, thread3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thread3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 09:16:39,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 09:16:39,615 INFO L82 PathProgramCache]: Analyzing trace with hash -1968104944, now seen corresponding path program 1 times [2021-03-11 09:16:39,620 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 09:16:39,620 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837766168] [2021-03-11 09:16:39,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 09:16:39,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 09:16:39,742 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:16:39,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 09:16:39,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 09:16:39,747 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837766168] [2021-03-11 09:16:39,748 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 09:16:39,748 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-11 09:16:39,748 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593553154] [2021-03-11 09:16:39,756 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 09:16:39,756 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 09:16:39,763 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 09:16:39,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 09:16:39,765 INFO L87 Difference]: Start difference. First operand has 492 states, 490 states have (on average 2.769387755102041) internal successors, (1357), 491 states have internal predecessors, (1357), 0 states have call successors, (0), 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 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:16:39,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 09:16:39,809 INFO L93 Difference]: Finished difference Result 480 states and 1245 transitions. [2021-03-11 09:16:39,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 09:16:39,811 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 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 8 [2021-03-11 09:16:39,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 09:16:39,821 INFO L225 Difference]: With dead ends: 480 [2021-03-11 09:16:39,821 INFO L226 Difference]: Without dead ends: 250 [2021-03-11 09:16:39,822 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 09:16:39,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2021-03-11 09:16:39,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 250. [2021-03-11 09:16:39,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 249 states have (on average 2.497991967871486) internal successors, (622), 249 states have internal predecessors, (622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:16:39,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 622 transitions. [2021-03-11 09:16:39,874 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 622 transitions. Word has length 8 [2021-03-11 09:16:39,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 09:16:39,875 INFO L480 AbstractCegarLoop]: Abstraction has 250 states and 622 transitions. [2021-03-11 09:16:39,875 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:16:39,875 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 622 transitions. [2021-03-11 09:16:39,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-03-11 09:16:39,876 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 09:16:39,876 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 09:16:39,877 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-11 09:16:39,877 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, thread3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thread3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 09:16:39,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 09:16:39,877 INFO L82 PathProgramCache]: Analyzing trace with hash -1295188207, now seen corresponding path program 1 times [2021-03-11 09:16:39,877 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 09:16:39,878 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306362996] [2021-03-11 09:16:39,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 09:16:39,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 09:16:39,964 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:16:39,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 09:16:39,964 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:16:39,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 09:16:39,968 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:16:39,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 09:16:39,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 09:16:39,968 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306362996] [2021-03-11 09:16:39,969 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 09:16:39,969 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 09:16:39,969 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722588657] [2021-03-11 09:16:39,969 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 09:16:39,970 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 09:16:39,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 09:16:39,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 09:16:39,970 INFO L87 Difference]: Start difference. First operand 250 states and 622 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:16:39,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 09:16:39,985 INFO L93 Difference]: Finished difference Result 142 states and 253 transitions. [2021-03-11 09:16:39,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 09:16:39,986 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 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 10 [2021-03-11 09:16:39,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 09:16:39,988 INFO L225 Difference]: With dead ends: 142 [2021-03-11 09:16:39,988 INFO L226 Difference]: Without dead ends: 140 [2021-03-11 09:16:39,988 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 09:16:39,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2021-03-11 09:16:39,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2021-03-11 09:16:39,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 137 states have (on average 1.8248175182481752) internal successors, (250), 139 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:16:39,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 250 transitions. [2021-03-11 09:16:39,996 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 250 transitions. Word has length 10 [2021-03-11 09:16:39,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 09:16:39,997 INFO L480 AbstractCegarLoop]: Abstraction has 140 states and 250 transitions. [2021-03-11 09:16:39,997 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:16:39,997 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 250 transitions. [2021-03-11 09:16:39,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-03-11 09:16:39,997 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 09:16:39,997 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 09:16:39,997 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-11 09:16:39,997 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, thread3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thread3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 09:16:39,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 09:16:39,998 INFO L82 PathProgramCache]: Analyzing trace with hash -1496104186, now seen corresponding path program 1 times [2021-03-11 09:16:39,998 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 09:16:39,998 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640421876] [2021-03-11 09:16:39,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 09:16:40,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 09:16:40,028 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:16:40,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 09:16:40,030 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:16:40,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 09:16:40,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 09:16:40,033 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640421876] [2021-03-11 09:16:40,033 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 09:16:40,033 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-11 09:16:40,033 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544833200] [2021-03-11 09:16:40,034 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-11 09:16:40,034 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 09:16:40,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-11 09:16:40,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-11 09:16:40,034 INFO L87 Difference]: Start difference. First operand 140 states and 250 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:16:40,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 09:16:40,043 INFO L93 Difference]: Finished difference Result 135 states and 241 transitions. [2021-03-11 09:16:40,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-11 09:16:40,044 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 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 11 [2021-03-11 09:16:40,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 09:16:40,044 INFO L225 Difference]: With dead ends: 135 [2021-03-11 09:16:40,044 INFO L226 Difference]: Without dead ends: 130 [2021-03-11 09:16:40,044 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.6ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-11 09:16:40,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2021-03-11 09:16:40,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2021-03-11 09:16:40,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 128 states have (on average 1.8125) internal successors, (232), 129 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:16:40,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 232 transitions. [2021-03-11 09:16:40,047 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 232 transitions. Word has length 11 [2021-03-11 09:16:40,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 09:16:40,048 INFO L480 AbstractCegarLoop]: Abstraction has 130 states and 232 transitions. [2021-03-11 09:16:40,048 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:16:40,048 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 232 transitions. [2021-03-11 09:16:40,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-03-11 09:16:40,048 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 09:16:40,048 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 09:16:40,048 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-11 09:16:40,049 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, thread3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thread3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 09:16:40,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 09:16:40,049 INFO L82 PathProgramCache]: Analyzing trace with hash -1909926160, now seen corresponding path program 1 times [2021-03-11 09:16:40,049 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 09:16:40,049 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884628696] [2021-03-11 09:16:40,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 09:16:40,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 09:16:40,082 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:16:40,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 09:16:40,085 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:16:40,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 09:16:40,088 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:16:40,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 09:16:40,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 09:16:40,091 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884628696] [2021-03-11 09:16:40,091 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 09:16:40,091 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 09:16:40,091 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391406354] [2021-03-11 09:16:40,092 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-11 09:16:40,092 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 09:16:40,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-11 09:16:40,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-11 09:16:40,093 INFO L87 Difference]: Start difference. First operand 130 states and 232 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:16:40,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 09:16:40,114 INFO L93 Difference]: Finished difference Result 125 states and 223 transitions. [2021-03-11 09:16:40,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-11 09:16:40,115 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 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 12 [2021-03-11 09:16:40,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 09:16:40,115 INFO L225 Difference]: With dead ends: 125 [2021-03-11 09:16:40,115 INFO L226 Difference]: Without dead ends: 120 [2021-03-11 09:16:40,116 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.6ms TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-03-11 09:16:40,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2021-03-11 09:16:40,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2021-03-11 09:16:40,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 119 states have (on average 1.7983193277310925) internal successors, (214), 119 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:16:40,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 214 transitions. [2021-03-11 09:16:40,122 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 214 transitions. Word has length 12 [2021-03-11 09:16:40,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 09:16:40,122 INFO L480 AbstractCegarLoop]: Abstraction has 120 states and 214 transitions. [2021-03-11 09:16:40,122 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:16:40,122 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 214 transitions. [2021-03-11 09:16:40,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-03-11 09:16:40,124 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 09:16:40,124 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 09:16:40,124 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-11 09:16:40,124 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, thread3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thread3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 09:16:40,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 09:16:40,126 INFO L82 PathProgramCache]: Analyzing trace with hash 1132349862, now seen corresponding path program 1 times [2021-03-11 09:16:40,126 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 09:16:40,126 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706972563] [2021-03-11 09:16:40,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 09:16:40,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-11 09:16:40,149 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-11 09:16:40,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-11 09:16:40,164 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-11 09:16:40,181 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-11 09:16:40,181 INFO L620 BasicCegarLoop]: Counterexample might be feasible [2021-03-11 09:16:40,181 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-11 09:16:40,220 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.03 09:16:40 BasicIcfg [2021-03-11 09:16:40,220 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-11 09:16:40,221 INFO L168 Benchmark]: Toolchain (without parser) took 4360.81 ms. Allocated memory was 255.9 MB in the beginning and 448.8 MB in the end (delta: 192.9 MB). Free memory was 235.3 MB in the beginning and 295.2 MB in the end (delta: -59.9 MB). Peak memory consumption was 132.6 MB. Max. memory is 16.0 GB. [2021-03-11 09:16:40,221 INFO L168 Benchmark]: CDTParser took 0.08 ms. Allocated memory is still 255.9 MB. Free memory is still 238.0 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-11 09:16:40,222 INFO L168 Benchmark]: CACSL2BoogieTranslator took 354.34 ms. Allocated memory was 255.9 MB in the beginning and 373.3 MB in the end (delta: 117.4 MB). Free memory was 234.7 MB in the beginning and 337.3 MB in the end (delta: -102.6 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.0 GB. [2021-03-11 09:16:40,222 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.21 ms. Allocated memory is still 373.3 MB. Free memory was 337.3 MB in the beginning and 335.6 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-11 09:16:40,222 INFO L168 Benchmark]: Boogie Preprocessor took 12.82 ms. Allocated memory is still 373.3 MB. Free memory was 335.6 MB in the beginning and 334.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-11 09:16:40,223 INFO L168 Benchmark]: RCFGBuilder took 395.78 ms. Allocated memory is still 373.3 MB. Free memory was 334.3 MB in the beginning and 348.9 MB in the end (delta: -14.6 MB). Peak memory consumption was 20.8 MB. Max. memory is 16.0 GB. [2021-03-11 09:16:40,223 INFO L168 Benchmark]: TraceAbstraction took 3549.08 ms. Allocated memory was 373.3 MB in the beginning and 448.8 MB in the end (delta: 75.5 MB). Free memory was 348.9 MB in the beginning and 295.2 MB in the end (delta: 53.7 MB). Peak memory consumption was 129.7 MB. Max. memory is 16.0 GB. [2021-03-11 09:16:40,225 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.08 ms. Allocated memory is still 255.9 MB. Free memory is still 238.0 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 354.34 ms. Allocated memory was 255.9 MB in the beginning and 373.3 MB in the end (delta: 117.4 MB). Free memory was 234.7 MB in the beginning and 337.3 MB in the end (delta: -102.6 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 42.21 ms. Allocated memory is still 373.3 MB. Free memory was 337.3 MB in the beginning and 335.6 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 12.82 ms. Allocated memory is still 373.3 MB. Free memory was 335.6 MB in the beginning and 334.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 395.78 ms. Allocated memory is still 373.3 MB. Free memory was 334.3 MB in the beginning and 348.9 MB in the end (delta: -14.6 MB). Peak memory consumption was 20.8 MB. Max. memory is 16.0 GB. * TraceAbstraction took 3549.08 ms. Allocated memory was 373.3 MB in the beginning and 448.8 MB in the end (delta: 75.5 MB). Free memory was 348.9 MB in the beginning and 295.2 MB in the end (delta: 53.7 MB). Peak memory consumption was 129.7 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2775.8ms, 86 PlacesBefore, 40 PlacesAfterwards, 83 TransitionsBefore, 37 TransitionsAfterwards, 1168 CoEnabledTransitionPairs, 6 FixpointIterations, 28 TrivialSequentialCompositions, 21 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 0 ChoiceCompositions, 52 TotalNumberOfCompositions, 5375 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3413, positive: 3279, positive conditional: 0, positive unconditional: 3279, negative: 134, negative conditional: 0, negative unconditional: 134, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 898, positive: 867, positive conditional: 0, positive unconditional: 867, negative: 31, negative conditional: 0, negative unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 898, positive: 848, positive conditional: 0, positive unconditional: 848, negative: 50, negative conditional: 0, negative unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 50, positive: 19, positive conditional: 0, positive unconditional: 19, negative: 31, negative conditional: 0, negative unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 166, positive: 58, positive conditional: 0, positive unconditional: 58, negative: 109, negative conditional: 0, negative unconditional: 109, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3413, positive: 2412, positive conditional: 0, positive unconditional: 2412, negative: 103, negative conditional: 0, negative unconditional: 103, unknown: 898, unknown conditional: 0, unknown unconditional: 898] , Statistics on independence cache: Total cache size (in pairs): 213, Positive cache size: 199, Positive conditional cache size: 0, Positive unconditional cache size: 199, Negative cache size: 14, Negative conditional cache size: 0, Negative unconditional cache size: 14 - CounterExampleResult [Line: 722]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L702] 0 pthread_mutex_t mutex; [L703] 0 int data = 0; [L731] 0 pthread_t t1, t2, t3; [L732] FCALL, FORK 0 pthread_create(&t1, 0, thread1, 0) VAL [arg={0:0}, data=0, mutex={5:0}] [L707] 1 data++ VAL [arg={0:0}, arg={0:0}, data=0, data++=0, mutex={5:0}] [L733] FCALL, FORK 0 pthread_create(&t2, 0, thread2, 0) VAL [arg={0:0}, arg={0:0}, arg={0:0}, data=0, data++=0, mutex={5:0}] [L734] FCALL, FORK 0 pthread_create(&t3, 0, thread3, 0) VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data=0, data++=0, mutex={5:0}] [L707] 1 data++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data=1, mutex={5:0}] [L709] 1 return 0; [L714] 2 data+=2 VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data=3, mutex={5:0}] [L716] 2 return 0; [L721] COND TRUE 3 data >= 3 [L722] 3 reach_error() VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data=3, mutex={5:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 77 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 3410.5ms, OverallIterations: 5, TraceHistogramMax: 1, EmptinessCheckTime: 9.0ms, AutomataDifference: 118.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 2833.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 117 SDtfs, 57 SDslu, 135 SDs, 0 SdLazy, 37 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 27.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 19.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=492occurred in iteration=0, InterpolantAutomatonStates: 15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 60.9ms AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 7.6ms SsaConstructionTime, 60.8ms SatisfiabilityAnalysisTime, 175.4ms InterpolantComputationTime, 56 NumberOfCodeBlocks, 56 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 37 ConstructedInterpolants, 0 QuantifiedInterpolants, 117 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...