/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-Separate.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-atomic/dekker.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-29289db [2021-06-05 08:00:09,702 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-05 08:00:09,705 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-05 08:00:09,745 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-05 08:00:09,765 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-05 08:00:09,767 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-05 08:00:09,768 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-05 08:00:09,769 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-05 08:00:09,772 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-05 08:00:09,773 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-05 08:00:09,775 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-05 08:00:09,780 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-05 08:00:09,781 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-05 08:00:09,782 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-05 08:00:09,783 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-05 08:00:09,785 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-05 08:00:09,791 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-06-05 08:00:09,799 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-05 08:00:09,800 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-05 08:00:09,801 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-05 08:00:09,805 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-Separate.epf [2021-06-05 08:00:09,843 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-05 08:00:09,843 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-05 08:00:09,843 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-05 08:00:09,844 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-05 08:00:09,846 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-05 08:00:09,846 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-05 08:00:09,846 INFO L138 SettingsManager]: * Use SBE=true [2021-06-05 08:00:09,847 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-05 08:00:09,847 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-05 08:00:09,847 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-05 08:00:09,847 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-05 08:00:09,848 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-05 08:00:09,848 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-05 08:00:09,848 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-05 08:00:09,848 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-05 08:00:09,848 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-05 08:00:09,848 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-05 08:00:09,848 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-05 08:00:09,848 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-05 08:00:09,849 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-05 08:00:09,849 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-05 08:00:09,849 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-05 08:00:09,849 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-05 08:00:09,849 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 08:00:09,849 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-05 08:00:09,849 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-05 08:00:09,850 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-05 08:00:09,850 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-05 08:00:09,850 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-05 08:00:09,850 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-05 08:00:09,850 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-05 08:00:09,850 INFO L138 SettingsManager]: * Check the insufficient thread errors last=true [2021-06-05 08:00:09,850 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-05 08:00:10,155 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-05 08:00:10,184 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-05 08:00:10,186 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-05 08:00:10,187 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-05 08:00:10,188 INFO L275 PluginConnector]: CDTParser initialized [2021-06-05 08:00:10,189 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/dekker.i [2021-06-05 08:00:10,257 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/996b00acb/487d84f72ad946199f263da2de5e7d9e/FLAG1f6e17e7d [2021-06-05 08:00:10,742 INFO L306 CDTParser]: Found 1 translation units. [2021-06-05 08:00:10,742 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/dekker.i [2021-06-05 08:00:10,756 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/996b00acb/487d84f72ad946199f263da2de5e7d9e/FLAG1f6e17e7d [2021-06-05 08:00:11,061 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/996b00acb/487d84f72ad946199f263da2de5e7d9e [2021-06-05 08:00:11,063 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-05 08:00:11,065 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-05 08:00:11,068 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-05 08:00:11,069 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-05 08:00:11,071 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-05 08:00:11,073 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 08:00:11" (1/1) ... [2021-06-05 08:00:11,073 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b0638d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:00:11, skipping insertion in model container [2021-06-05 08:00:11,074 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 08:00:11" (1/1) ... [2021-06-05 08:00:11,079 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-05 08:00:11,131 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-05 08:00:11,316 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-06-05 08:00:11,468 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/dekker.i[31403,31416] [2021-06-05 08:00:11,477 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/dekker.i[32483,32496] [2021-06-05 08:00:11,483 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 08:00:11,490 INFO L203 MainTranslator]: Completed pre-run [2021-06-05 08:00:11,512 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-06-05 08:00:11,535 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/dekker.i[31403,31416] [2021-06-05 08:00:11,537 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/dekker.i[32483,32496] [2021-06-05 08:00:11,540 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 08:00:11,608 INFO L208 MainTranslator]: Completed translation [2021-06-05 08:00:11,608 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:00:11 WrapperNode [2021-06-05 08:00:11,608 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-05 08:00:11,609 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-05 08:00:11,610 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-05 08:00:11,610 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-05 08:00:11,616 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:00:11" (1/1) ... [2021-06-05 08:00:11,644 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:00:11" (1/1) ... [2021-06-05 08:00:11,664 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-05 08:00:11,665 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-05 08:00:11,665 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-05 08:00:11,665 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-05 08:00:11,671 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:00:11" (1/1) ... [2021-06-05 08:00:11,672 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:00:11" (1/1) ... [2021-06-05 08:00:11,684 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:00:11" (1/1) ... [2021-06-05 08:00:11,685 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:00:11" (1/1) ... [2021-06-05 08:00:11,696 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:00:11" (1/1) ... [2021-06-05 08:00:11,700 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:00:11" (1/1) ... [2021-06-05 08:00:11,702 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:00:11" (1/1) ... [2021-06-05 08:00:11,704 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-05 08:00:11,705 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-05 08:00:11,705 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-05 08:00:11,705 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-05 08:00:11,706 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:00:11" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 08:00:11,794 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-06-05 08:00:11,794 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2021-06-05 08:00:11,794 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2021-06-05 08:00:11,794 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2021-06-05 08:00:11,795 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2021-06-05 08:00:11,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-05 08:00:11,795 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-05 08:00:11,795 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-05 08:00:11,796 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-05 08:00:11,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-05 08:00:11,797 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-05 08:00:11,797 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-05 08:00:11,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-05 08:00:11,798 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-05 08:00:12,108 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-05 08:00:12,108 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-06-05 08:00:12,110 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 08:00:12 BoogieIcfgContainer [2021-06-05 08:00:12,110 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-05 08:00:12,112 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-05 08:00:12,112 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-05 08:00:12,114 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-05 08:00:12,115 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.06 08:00:11" (1/3) ... [2021-06-05 08:00:12,115 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7242a165 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 08:00:12, skipping insertion in model container [2021-06-05 08:00:12,115 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:00:11" (2/3) ... [2021-06-05 08:00:12,116 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7242a165 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 08:00:12, skipping insertion in model container [2021-06-05 08:00:12,116 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 08:00:12" (3/3) ... [2021-06-05 08:00:12,117 INFO L111 eAbstractionObserver]: Analyzing ICFG dekker.i [2021-06-05 08:00:12,122 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-05 08:00:12,122 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-05 08:00:12,122 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-06-05 08:00:12,123 INFO L510 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-05 08:00:12,164 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:12,164 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:12,164 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:12,164 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:12,165 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:12,165 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:12,165 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:12,165 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:12,166 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:12,166 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:12,166 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:12,166 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:12,166 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:12,166 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:12,167 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:12,167 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:12,167 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:12,167 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:12,167 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:12,168 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:12,168 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:12,168 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:12,168 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:12,169 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:12,169 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:12,169 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:12,169 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:12,169 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:12,169 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:12,170 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:12,170 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:12,170 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:12,170 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:12,170 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:12,171 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:12,171 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:12,171 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:12,177 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:12,177 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:12,178 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:12,178 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:12,178 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:12,178 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:12,178 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:12,179 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:12,179 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:12,179 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:12,179 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:12,179 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:12,180 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:12,180 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:12,180 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:12,180 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:12,180 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:12,181 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:12,181 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:12,181 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:12,181 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:12,182 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:12,182 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:12,182 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:12,182 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:12,182 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:12,182 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:12,183 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:12,183 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:12,184 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:12,184 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:12,186 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:12,186 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:12,186 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:12,186 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:12,187 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:12,187 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:12,191 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:12,191 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:12,192 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:12,192 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:12,192 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:12,192 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 08:00:12,201 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-06-05 08:00:12,220 INFO L255 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-06-05 08:00:12,235 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 08:00:12,235 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 08:00:12,235 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 08:00:12,235 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 08:00:12,235 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 08:00:12,236 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 08:00:12,236 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 08:00:12,236 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-05 08:00:12,246 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 94 places, 102 transitions, 226 flow [2021-06-05 08:00:12,358 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 2049 states, 2045 states have (on average 3.075794621026895) internal successors, (6290), 2048 states have internal predecessors, (6290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:00:12,366 INFO L276 IsEmpty]: Start isEmpty. Operand has 2049 states, 2045 states have (on average 3.075794621026895) internal successors, (6290), 2048 states have internal predecessors, (6290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:00:12,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-06-05 08:00:12,379 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 08:00:12,379 INFO L521 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] [2021-06-05 08:00:12,380 INFO L430 AbstractCegarLoop]: === Iteration 1 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 08:00:12,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 08:00:12,385 INFO L82 PathProgramCache]: Analyzing trace with hash -1600769794, now seen corresponding path program 1 times [2021-06-05 08:00:12,392 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 08:00:12,392 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083575274] [2021-06-05 08:00:12,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 08:00:12,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 08:00:12,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 08:00:12,583 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 08:00:12,583 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083575274] [2021-06-05 08:00:12,584 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083575274] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 08:00:12,584 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 08:00:12,584 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-05 08:00:12,585 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051753079] [2021-06-05 08:00:12,588 INFO L462 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-06-05 08:00:12,589 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 08:00:12,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-06-05 08:00:12,600 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-06-05 08:00:12,607 INFO L87 Difference]: Start difference. First operand has 2049 states, 2045 states have (on average 3.075794621026895) internal successors, (6290), 2048 states have internal predecessors, (6290), 0 states have call successors, (0), 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 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:00:12,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 08:00:12,670 INFO L93 Difference]: Finished difference Result 2049 states and 5749 transitions. [2021-06-05 08:00:12,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-05 08:00:12,671 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 0 states have call successors, (0), 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 30 [2021-06-05 08:00:12,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 08:00:12,713 INFO L225 Difference]: With dead ends: 2049 [2021-06-05 08:00:12,713 INFO L226 Difference]: Without dead ends: 1909 [2021-06-05 08:00:12,715 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-06-05 08:00:12,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1909 states. [2021-06-05 08:00:12,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1909 to 1909. [2021-06-05 08:00:12,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1909 states, 1906 states have (on average 2.834732423924449) internal successors, (5403), 1908 states have internal predecessors, (5403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:00:12,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1909 states to 1909 states and 5403 transitions. [2021-06-05 08:00:12,863 INFO L78 Accepts]: Start accepts. Automaton has 1909 states and 5403 transitions. Word has length 30 [2021-06-05 08:00:12,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 08:00:12,863 INFO L482 AbstractCegarLoop]: Abstraction has 1909 states and 5403 transitions. [2021-06-05 08:00:12,863 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:00:12,863 INFO L276 IsEmpty]: Start isEmpty. Operand 1909 states and 5403 transitions. [2021-06-05 08:00:12,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-06-05 08:00:12,865 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 08:00:12,865 INFO L521 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] [2021-06-05 08:00:12,866 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-05 08:00:12,866 INFO L430 AbstractCegarLoop]: === Iteration 2 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 08:00:12,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 08:00:12,870 INFO L82 PathProgramCache]: Analyzing trace with hash -1600740003, now seen corresponding path program 1 times [2021-06-05 08:00:12,870 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 08:00:12,870 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829032874] [2021-06-05 08:00:12,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 08:00:12,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 08:00:12,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 08:00:12,952 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 08:00:12,953 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829032874] [2021-06-05 08:00:12,953 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829032874] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 08:00:12,953 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 08:00:12,953 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-05 08:00:12,953 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767192302] [2021-06-05 08:00:12,954 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-05 08:00:12,955 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 08:00:12,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-05 08:00:12,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 08:00:12,956 INFO L87 Difference]: Start difference. First operand 1909 states and 5403 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:00:13,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 08:00:13,018 INFO L93 Difference]: Finished difference Result 1897 states and 5280 transitions. [2021-06-05 08:00:13,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-05 08:00:13,019 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 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 30 [2021-06-05 08:00:13,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 08:00:13,035 INFO L225 Difference]: With dead ends: 1897 [2021-06-05 08:00:13,035 INFO L226 Difference]: Without dead ends: 1575 [2021-06-05 08:00:13,036 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 08:00:13,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1575 states. [2021-06-05 08:00:13,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1575 to 1506. [2021-06-05 08:00:13,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1506 states, 1503 states have (on average 2.8183632734530937) internal successors, (4236), 1505 states have internal predecessors, (4236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:00:13,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1506 states to 1506 states and 4236 transitions. [2021-06-05 08:00:13,089 INFO L78 Accepts]: Start accepts. Automaton has 1506 states and 4236 transitions. Word has length 30 [2021-06-05 08:00:13,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 08:00:13,089 INFO L482 AbstractCegarLoop]: Abstraction has 1506 states and 4236 transitions. [2021-06-05 08:00:13,090 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:00:13,090 INFO L276 IsEmpty]: Start isEmpty. Operand 1506 states and 4236 transitions. [2021-06-05 08:00:13,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-06-05 08:00:13,097 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 08:00:13,097 INFO L521 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] [2021-06-05 08:00:13,097 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-05 08:00:13,098 INFO L430 AbstractCegarLoop]: === Iteration 3 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 08:00:13,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 08:00:13,098 INFO L82 PathProgramCache]: Analyzing trace with hash -339940789, now seen corresponding path program 1 times [2021-06-05 08:00:13,099 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 08:00:13,100 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314494868] [2021-06-05 08:00:13,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 08:00:13,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 08:00:13,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 08:00:13,147 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 08:00:13,147 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314494868] [2021-06-05 08:00:13,148 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314494868] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 08:00:13,148 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 08:00:13,148 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-05 08:00:13,148 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412437356] [2021-06-05 08:00:13,149 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-05 08:00:13,149 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 08:00:13,149 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-05 08:00:13,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 08:00:13,150 INFO L87 Difference]: Start difference. First operand 1506 states and 4236 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:00:13,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 08:00:13,181 INFO L93 Difference]: Finished difference Result 1401 states and 3890 transitions. [2021-06-05 08:00:13,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-05 08:00:13,182 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 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 36 [2021-06-05 08:00:13,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 08:00:13,188 INFO L225 Difference]: With dead ends: 1401 [2021-06-05 08:00:13,188 INFO L226 Difference]: Without dead ends: 1049 [2021-06-05 08:00:13,188 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 08:00:13,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1049 states. [2021-06-05 08:00:13,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1049 to 1049. [2021-06-05 08:00:13,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1049 states, 1047 states have (on average 2.8022922636103154) internal successors, (2934), 1048 states have internal predecessors, (2934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:00:13,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1049 states to 1049 states and 2934 transitions. [2021-06-05 08:00:13,224 INFO L78 Accepts]: Start accepts. Automaton has 1049 states and 2934 transitions. Word has length 36 [2021-06-05 08:00:13,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 08:00:13,225 INFO L482 AbstractCegarLoop]: Abstraction has 1049 states and 2934 transitions. [2021-06-05 08:00:13,225 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:00:13,225 INFO L276 IsEmpty]: Start isEmpty. Operand 1049 states and 2934 transitions. [2021-06-05 08:00:13,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-06-05 08:00:13,229 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 08:00:13,229 INFO L521 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] [2021-06-05 08:00:13,229 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-05 08:00:13,230 INFO L430 AbstractCegarLoop]: === Iteration 4 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 08:00:13,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 08:00:13,231 INFO L82 PathProgramCache]: Analyzing trace with hash -159942436, now seen corresponding path program 1 times [2021-06-05 08:00:13,232 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 08:00:13,235 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565248054] [2021-06-05 08:00:13,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 08:00:13,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 08:00:13,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 08:00:13,346 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 08:00:13,346 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565248054] [2021-06-05 08:00:13,346 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565248054] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 08:00:13,346 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 08:00:13,347 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-05 08:00:13,347 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71806096] [2021-06-05 08:00:13,347 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-05 08:00:13,347 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 08:00:13,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-05 08:00:13,348 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-05 08:00:13,348 INFO L87 Difference]: Start difference. First operand 1049 states and 2934 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:00:13,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 08:00:13,399 INFO L93 Difference]: Finished difference Result 1481 states and 4290 transitions. [2021-06-05 08:00:13,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-05 08:00:13,400 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 0 states have call successors, (0), 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 41 [2021-06-05 08:00:13,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 08:00:13,407 INFO L225 Difference]: With dead ends: 1481 [2021-06-05 08:00:13,408 INFO L226 Difference]: Without dead ends: 1309 [2021-06-05 08:00:13,408 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.6ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-06-05 08:00:13,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1309 states. [2021-06-05 08:00:13,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1309 to 989. [2021-06-05 08:00:13,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 989 states, 987 states have (on average 2.7983789260385006) internal successors, (2762), 988 states have internal predecessors, (2762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:00:13,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 989 states to 989 states and 2762 transitions. [2021-06-05 08:00:13,469 INFO L78 Accepts]: Start accepts. Automaton has 989 states and 2762 transitions. Word has length 41 [2021-06-05 08:00:13,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 08:00:13,471 INFO L482 AbstractCegarLoop]: Abstraction has 989 states and 2762 transitions. [2021-06-05 08:00:13,471 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:00:13,471 INFO L276 IsEmpty]: Start isEmpty. Operand 989 states and 2762 transitions. [2021-06-05 08:00:13,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-06-05 08:00:13,473 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 08:00:13,473 INFO L521 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] [2021-06-05 08:00:13,473 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-05 08:00:13,473 INFO L430 AbstractCegarLoop]: === Iteration 5 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 08:00:13,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 08:00:13,474 INFO L82 PathProgramCache]: Analyzing trace with hash -1010880036, now seen corresponding path program 2 times [2021-06-05 08:00:13,474 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 08:00:13,474 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359611644] [2021-06-05 08:00:13,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 08:00:13,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 08:00:13,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 08:00:13,521 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 08:00:13,521 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359611644] [2021-06-05 08:00:13,521 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359611644] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 08:00:13,522 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 08:00:13,522 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-05 08:00:13,522 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893548246] [2021-06-05 08:00:13,523 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-05 08:00:13,523 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 08:00:13,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-05 08:00:13,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-05 08:00:13,524 INFO L87 Difference]: Start difference. First operand 989 states and 2762 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:00:13,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 08:00:13,566 INFO L93 Difference]: Finished difference Result 1227 states and 3672 transitions. [2021-06-05 08:00:13,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-05 08:00:13,567 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 0 states have call successors, (0), 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 41 [2021-06-05 08:00:13,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 08:00:13,568 INFO L225 Difference]: With dead ends: 1227 [2021-06-05 08:00:13,568 INFO L226 Difference]: Without dead ends: 0 [2021-06-05 08:00:13,571 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.3ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-06-05 08:00:13,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-06-05 08:00:13,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-06-05 08:00:13,572 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) [2021-06-05 08:00:13,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-06-05 08:00:13,572 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 41 [2021-06-05 08:00:13,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 08:00:13,572 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-06-05 08:00:13,572 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 08:00:13,572 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-06-05 08:00:13,572 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-05 08:00:13,573 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-05 08:00:13,574 INFO L246 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-05 08:00:13,577 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.06 08:00:13 BasicIcfg [2021-06-05 08:00:13,577 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-05 08:00:13,578 INFO L168 Benchmark]: Toolchain (without parser) took 2512.51 ms. Allocated memory is still 356.5 MB. Free memory was 319.1 MB in the beginning and 301.5 MB in the end (delta: 17.6 MB). Peak memory consumption was 19.1 MB. Max. memory is 16.0 GB. [2021-06-05 08:00:13,579 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 356.5 MB. Free memory is still 337.0 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 08:00:13,579 INFO L168 Benchmark]: CACSL2BoogieTranslator took 540.31 ms. Allocated memory is still 356.5 MB. Free memory was 318.9 MB in the beginning and 318.2 MB in the end (delta: 728.2 kB). Peak memory consumption was 7.5 MB. Max. memory is 16.0 GB. [2021-06-05 08:00:13,579 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.80 ms. Allocated memory is still 356.5 MB. Free memory was 318.2 MB in the beginning and 317.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-05 08:00:13,580 INFO L168 Benchmark]: Boogie Preprocessor took 39.27 ms. Allocated memory is still 356.5 MB. Free memory was 317.2 MB in the beginning and 315.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-05 08:00:13,582 INFO L168 Benchmark]: RCFGBuilder took 405.46 ms. Allocated memory is still 356.5 MB. Free memory was 315.1 MB in the beginning and 288.8 MB in the end (delta: 26.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2021-06-05 08:00:13,583 INFO L168 Benchmark]: TraceAbstraction took 1465.11 ms. Allocated memory is still 356.5 MB. Free memory was 287.8 MB in the beginning and 301.5 MB in the end (delta: -13.7 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 08:00:13,587 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 356.5 MB. Free memory is still 337.0 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 540.31 ms. Allocated memory is still 356.5 MB. Free memory was 318.9 MB in the beginning and 318.2 MB in the end (delta: 728.2 kB). Peak memory consumption was 7.5 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 54.80 ms. Allocated memory is still 356.5 MB. Free memory was 318.2 MB in the beginning and 317.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 39.27 ms. Allocated memory is still 356.5 MB. Free memory was 317.2 MB in the beginning and 315.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 405.46 ms. Allocated memory is still 356.5 MB. Free memory was 315.1 MB in the beginning and 288.8 MB in the end (delta: 26.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 1465.11 ms. Allocated memory is still 356.5 MB. Free memory was 287.8 MB in the beginning and 301.5 MB in the end (delta: -13.7 MB). There was no memory consumed. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 780]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 739]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 132 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1340.5ms, OverallIterations: 5, TraceHistogramMax: 1, EmptinessCheckTime: 34.7ms, AutomataDifference: 351.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 122.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 512 SDtfs, 249 SDslu, 419 SDs, 0 SdLazy, 51 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 75.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 38.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=2049occurred in iteration=0, InterpolantAutomatonStates: 18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 285.2ms AutomataMinimizationTime, 5 MinimizatonAttempts, 389 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 28.0ms SsaConstructionTime, 72.6ms SatisfiabilityAnalysisTime, 254.8ms InterpolantComputationTime, 178 NumberOfCodeBlocks, 178 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 173 ConstructedInterpolants, 0 QuantifiedInterpolants, 209 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...