/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe027_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-e5469eb [2021-01-20 14:48:28,710 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-20 14:48:28,713 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-20 14:48:28,759 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-20 14:48:28,760 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-20 14:48:28,765 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-20 14:48:28,769 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-20 14:48:28,778 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-20 14:48:28,781 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-20 14:48:28,787 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-20 14:48:28,788 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-20 14:48:28,790 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-20 14:48:28,791 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-20 14:48:28,794 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-20 14:48:28,797 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-20 14:48:28,800 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-20 14:48:28,801 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-20 14:48:28,805 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-20 14:48:28,813 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-20 14:48:28,823 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-20 14:48:28,825 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-20 14:48:28,827 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-20 14:48:28,829 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-20 14:48:28,832 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-20 14:48:28,841 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-01-20 14:48:28,847 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-20 14:48:28,848 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-20 14:48:28,850 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-20 14:48:28,852 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-20 14:48:28,853 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-20 14:48:28,855 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-20 14:48:28,856 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-20 14:48:28,856 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-20 14:48:28,856 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-20 14:48:28,858 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-20 14:48:28,859 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-20 14:48:28,860 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2021-01-20 14:48:28,928 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-20 14:48:28,928 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-20 14:48:28,932 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-20 14:48:28,933 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-20 14:48:28,933 INFO L138 SettingsManager]: * Use SBE=true [2021-01-20 14:48:28,933 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-20 14:48:28,934 INFO L138 SettingsManager]: * sizeof long=4 [2021-01-20 14:48:28,934 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-20 14:48:28,934 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-01-20 14:48:28,935 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-20 14:48:28,936 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-20 14:48:28,936 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-20 14:48:28,937 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-20 14:48:28,937 INFO L138 SettingsManager]: * sizeof long double=12 [2021-01-20 14:48:28,937 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-20 14:48:28,937 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-20 14:48:28,938 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-20 14:48:28,938 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-20 14:48:28,938 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-20 14:48:28,938 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-01-20 14:48:28,939 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-20 14:48:28,939 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-20 14:48:28,940 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-20 14:48:28,940 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-20 14:48:28,940 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-20 14:48:28,940 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-20 14:48:28,941 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-20 14:48:28,941 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-01-20 14:48:28,941 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-20 14:48:28,941 INFO L138 SettingsManager]: * Minimization of abstraction=NONE [2021-01-20 14:48:28,942 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-20 14:48:29,403 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-20 14:48:29,431 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-20 14:48:29,434 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-20 14:48:29,436 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-20 14:48:29,436 INFO L275 PluginConnector]: CDTParser initialized [2021-01-20 14:48:29,437 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe027_pso.opt.i [2021-01-20 14:48:29,522 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b591749b1/9211fa2682c142779f13e7cbf3453367/FLAG8387fe707 [2021-01-20 14:48:30,377 INFO L306 CDTParser]: Found 1 translation units. [2021-01-20 14:48:30,378 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe027_pso.opt.i [2021-01-20 14:48:30,399 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b591749b1/9211fa2682c142779f13e7cbf3453367/FLAG8387fe707 [2021-01-20 14:48:30,596 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b591749b1/9211fa2682c142779f13e7cbf3453367 [2021-01-20 14:48:30,599 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-20 14:48:30,601 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-01-20 14:48:30,607 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-20 14:48:30,607 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-20 14:48:30,611 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-20 14:48:30,612 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 02:48:30" (1/1) ... [2021-01-20 14:48:30,617 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6afcdfa0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:48:30, skipping insertion in model container [2021-01-20 14:48:30,617 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 02:48:30" (1/1) ... [2021-01-20 14:48:30,626 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-20 14:48:30,670 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-01-20 14:48:31,005 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-20 14:48:31,015 INFO L203 MainTranslator]: Completed pre-run [2021-01-20 14:48:31,082 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-20 14:48:31,243 INFO L208 MainTranslator]: Completed translation [2021-01-20 14:48:31,243 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:48:31 WrapperNode [2021-01-20 14:48:31,243 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-20 14:48:31,245 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-20 14:48:31,245 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-20 14:48:31,245 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-20 14:48:31,254 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:48:31" (1/1) ... [2021-01-20 14:48:31,271 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:48:31" (1/1) ... [2021-01-20 14:48:31,295 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-20 14:48:31,296 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-20 14:48:31,296 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-20 14:48:31,296 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-20 14:48:31,305 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:48:31" (1/1) ... [2021-01-20 14:48:31,306 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:48:31" (1/1) ... [2021-01-20 14:48:31,309 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:48:31" (1/1) ... [2021-01-20 14:48:31,310 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:48:31" (1/1) ... [2021-01-20 14:48:31,316 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:48:31" (1/1) ... [2021-01-20 14:48:31,319 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:48:31" (1/1) ... [2021-01-20 14:48:31,321 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:48:31" (1/1) ... [2021-01-20 14:48:31,325 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-20 14:48:31,326 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-20 14:48:31,326 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-20 14:48:31,326 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-20 14:48:31,331 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:48:31" (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 [2021-01-20 14:48:31,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-01-20 14:48:31,412 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-01-20 14:48:31,412 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-20 14:48:31,413 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-01-20 14:48:31,413 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-01-20 14:48:31,414 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-01-20 14:48:31,415 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-01-20 14:48:31,415 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-01-20 14:48:31,416 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-01-20 14:48:31,416 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-01-20 14:48:31,416 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-01-20 14:48:31,417 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-01-20 14:48:31,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-20 14:48:31,417 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-01-20 14:48:31,417 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-20 14:48:31,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-20 14:48:31,419 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-01-20 14:48:32,063 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-20 14:48:32,064 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2021-01-20 14:48:32,068 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 02:48:32 BoogieIcfgContainer [2021-01-20 14:48:32,068 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-20 14:48:32,074 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-20 14:48:32,074 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-20 14:48:32,079 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-20 14:48:32,079 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.01 02:48:30" (1/3) ... [2021-01-20 14:48:32,081 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76fe254 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 02:48:32, skipping insertion in model container [2021-01-20 14:48:32,081 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:48:31" (2/3) ... [2021-01-20 14:48:32,081 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76fe254 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 02:48:32, skipping insertion in model container [2021-01-20 14:48:32,082 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 02:48:32" (3/3) ... [2021-01-20 14:48:32,084 INFO L111 eAbstractionObserver]: Analyzing ICFG safe027_pso.opt.i [2021-01-20 14:48:32,110 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-01-20 14:48:32,110 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-20 14:48:32,116 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-01-20 14:48:32,117 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-01-20 14:48:32,175 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:32,176 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:32,176 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:32,176 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:32,177 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:32,177 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:32,177 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:32,177 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:32,186 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:32,186 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:32,186 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:32,187 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:32,187 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:32,188 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:32,188 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:32,188 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:32,189 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:32,189 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:32,189 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:32,189 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:32,191 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:32,191 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:32,191 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:32,193 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:32,195 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:32,195 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:32,196 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:32,196 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:32,196 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:32,197 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:32,197 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:32,197 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:32,199 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:32,199 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:32,199 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:32,200 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:32,200 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:32,200 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:32,200 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:32,201 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:32,201 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:32,201 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:32,201 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:32,201 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:32,202 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:32,202 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:32,202 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:32,203 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:32,206 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:32,206 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:32,206 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:32,206 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:32,214 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:32,214 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:32,214 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:32,215 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:32,218 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:32,219 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:32,219 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:32,219 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:32,222 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:32,222 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:32,222 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:32,223 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:48:32,228 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-01-20 14:48:32,246 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-01-20 14:48:32,288 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-20 14:48:32,288 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-20 14:48:32,289 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-20 14:48:32,289 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-20 14:48:32,289 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-20 14:48:32,289 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-20 14:48:32,289 INFO L383 AbstractCegarLoop]: Minimize is NONE [2021-01-20 14:48:32,289 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-20 14:48:32,311 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 101 places, 91 transitions, 202 flow [2021-01-20 14:48:41,849 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 54313 states, 54311 states have (on average 4.420191121503931) internal successors, (240065), 54312 states have internal predecessors, (240065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:48:41,939 INFO L276 IsEmpty]: Start isEmpty. Operand has 54313 states, 54311 states have (on average 4.420191121503931) internal successors, (240065), 54312 states have internal predecessors, (240065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:48:42,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-01-20 14:48:42,186 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:48:42,187 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 14:48:42,188 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:48:42,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:48:42,195 INFO L82 PathProgramCache]: Analyzing trace with hash -1453792105, now seen corresponding path program 1 times [2021-01-20 14:48:42,206 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:48:42,206 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623226335] [2021-01-20 14:48:42,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:48:42,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:48:42,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 14:48:42,905 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623226335] [2021-01-20 14:48:42,906 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:48:42,906 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 14:48:42,907 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821020540] [2021-01-20 14:48:42,919 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 14:48:42,920 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:48:42,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 14:48:42,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 14:48:43,015 INFO L87 Difference]: Start difference. First operand has 54313 states, 54311 states have (on average 4.420191121503931) internal successors, (240065), 54312 states have internal predecessors, (240065), 0 states have call successors, (0), 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 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:48:44,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:48:44,873 INFO L93 Difference]: Finished difference Result 68929 states and 296105 transitions. [2021-01-20 14:48:44,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-20 14:48:44,876 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 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 47 [2021-01-20 14:48:44,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:48:45,164 INFO L225 Difference]: With dead ends: 68929 [2021-01-20 14:48:45,165 INFO L226 Difference]: Without dead ends: 23821 [2021-01-20 14:48:45,168 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-20 14:48:45,168 INFO L78 Accepts]: Start accepts. Automaton has 23821 states. Word has length 47 [2021-01-20 14:48:45,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:48:45,170 INFO L481 AbstractCegarLoop]: Abstraction has 23821 states. [2021-01-20 14:48:45,171 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:48:45,171 INFO L276 IsEmpty]: Start isEmpty. Operand 23821 states. [2021-01-20 14:48:45,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-01-20 14:48:45,241 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:48:45,241 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 14:48:45,241 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-20 14:48:45,242 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:48:45,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:48:45,244 INFO L82 PathProgramCache]: Analyzing trace with hash 2134201304, now seen corresponding path program 1 times [2021-01-20 14:48:45,244 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:48:45,245 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818939182] [2021-01-20 14:48:45,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:48:45,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:48:45,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 14:48:45,501 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818939182] [2021-01-20 14:48:45,501 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:48:45,502 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 14:48:45,502 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036385691] [2021-01-20 14:48:45,503 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 14:48:45,504 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:48:45,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 14:48:45,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-20 14:48:45,505 INFO L87 Difference]: Start difference. First operand 23821 states. Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:48:46,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:48:46,333 INFO L93 Difference]: Finished difference Result 31381 states and 131411 transitions. [2021-01-20 14:48:46,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-01-20 14:48:46,334 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 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 49 [2021-01-20 14:48:46,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:48:46,458 INFO L225 Difference]: With dead ends: 31381 [2021-01-20 14:48:46,458 INFO L226 Difference]: Without dead ends: 16541 [2021-01-20 14:48:46,459 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-01-20 14:48:46,459 INFO L78 Accepts]: Start accepts. Automaton has 16541 states. Word has length 49 [2021-01-20 14:48:46,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:48:46,460 INFO L481 AbstractCegarLoop]: Abstraction has 16541 states. [2021-01-20 14:48:46,460 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:48:46,461 INFO L276 IsEmpty]: Start isEmpty. Operand 16541 states. [2021-01-20 14:48:46,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-01-20 14:48:46,508 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:48:46,509 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 14:48:46,509 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-20 14:48:46,509 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:48:46,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:48:46,510 INFO L82 PathProgramCache]: Analyzing trace with hash -821966825, now seen corresponding path program 1 times [2021-01-20 14:48:46,510 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:48:46,510 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132993498] [2021-01-20 14:48:46,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:48:46,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:48:46,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 14:48:46,669 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132993498] [2021-01-20 14:48:46,669 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:48:46,669 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 14:48:46,669 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947367496] [2021-01-20 14:48:46,670 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 14:48:46,670 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:48:46,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 14:48:46,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 14:48:46,671 INFO L87 Difference]: Start difference. First operand 16541 states. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:48:47,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:48:47,122 INFO L93 Difference]: Finished difference Result 17981 states and 73907 transitions. [2021-01-20 14:48:47,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-20 14:48:47,123 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 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 51 [2021-01-20 14:48:47,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:48:47,222 INFO L225 Difference]: With dead ends: 17981 [2021-01-20 14:48:47,222 INFO L226 Difference]: Without dead ends: 14621 [2021-01-20 14:48:47,223 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-20 14:48:47,223 INFO L78 Accepts]: Start accepts. Automaton has 14621 states. Word has length 51 [2021-01-20 14:48:47,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:48:47,227 INFO L481 AbstractCegarLoop]: Abstraction has 14621 states. [2021-01-20 14:48:47,227 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:48:47,227 INFO L276 IsEmpty]: Start isEmpty. Operand 14621 states. [2021-01-20 14:48:47,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-01-20 14:48:47,297 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:48:47,298 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 14:48:47,298 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-20 14:48:47,298 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:48:47,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:48:47,299 INFO L82 PathProgramCache]: Analyzing trace with hash -1748725576, now seen corresponding path program 1 times [2021-01-20 14:48:47,299 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:48:47,300 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221679850] [2021-01-20 14:48:47,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:48:47,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:48:47,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 14:48:47,492 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221679850] [2021-01-20 14:48:47,492 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:48:47,492 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 14:48:47,493 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440046242] [2021-01-20 14:48:47,493 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 14:48:47,493 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:48:47,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 14:48:47,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-20 14:48:47,495 INFO L87 Difference]: Start difference. First operand 14621 states. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:48:47,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:48:47,893 INFO L93 Difference]: Finished difference Result 20061 states and 81751 transitions. [2021-01-20 14:48:47,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-01-20 14:48:47,894 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2021-01-20 14:48:47,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:48:48,217 INFO L225 Difference]: With dead ends: 20061 [2021-01-20 14:48:48,218 INFO L226 Difference]: Without dead ends: 10701 [2021-01-20 14:48:48,220 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-01-20 14:48:48,220 INFO L78 Accepts]: Start accepts. Automaton has 10701 states. Word has length 53 [2021-01-20 14:48:48,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:48:48,221 INFO L481 AbstractCegarLoop]: Abstraction has 10701 states. [2021-01-20 14:48:48,221 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:48:48,221 INFO L276 IsEmpty]: Start isEmpty. Operand 10701 states. [2021-01-20 14:48:48,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-01-20 14:48:48,254 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:48:48,254 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 14:48:48,254 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-01-20 14:48:48,255 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:48:48,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:48:48,255 INFO L82 PathProgramCache]: Analyzing trace with hash 426422777, now seen corresponding path program 1 times [2021-01-20 14:48:48,256 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:48:48,256 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867078307] [2021-01-20 14:48:48,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:48:48,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:48:48,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 14:48:48,425 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867078307] [2021-01-20 14:48:48,425 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:48:48,426 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 14:48:48,426 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906443772] [2021-01-20 14:48:48,430 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 14:48:48,430 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:48:48,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 14:48:48,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 14:48:48,431 INFO L87 Difference]: Start difference. First operand 10701 states. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:48:48,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:48:48,727 INFO L93 Difference]: Finished difference Result 14445 states and 57641 transitions. [2021-01-20 14:48:48,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-20 14:48:48,728 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2021-01-20 14:48:48,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:48:48,784 INFO L225 Difference]: With dead ends: 14445 [2021-01-20 14:48:48,784 INFO L226 Difference]: Without dead ends: 10349 [2021-01-20 14:48:48,784 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-20 14:48:48,785 INFO L78 Accepts]: Start accepts. Automaton has 10349 states. Word has length 55 [2021-01-20 14:48:48,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:48:48,785 INFO L481 AbstractCegarLoop]: Abstraction has 10349 states. [2021-01-20 14:48:48,785 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:48:48,785 INFO L276 IsEmpty]: Start isEmpty. Operand 10349 states. [2021-01-20 14:48:48,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-01-20 14:48:48,817 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:48:48,817 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 14:48:48,817 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-01-20 14:48:48,817 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:48:48,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:48:48,818 INFO L82 PathProgramCache]: Analyzing trace with hash 809833087, now seen corresponding path program 1 times [2021-01-20 14:48:48,818 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:48:48,818 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469228340] [2021-01-20 14:48:48,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:48:48,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:48:49,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 14:48:49,014 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469228340] [2021-01-20 14:48:49,016 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:48:49,016 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 14:48:49,016 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769304169] [2021-01-20 14:48:49,018 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 14:48:49,018 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:48:49,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 14:48:49,019 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-01-20 14:48:49,019 INFO L87 Difference]: Start difference. First operand 10349 states. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:48:49,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:48:49,480 INFO L93 Difference]: Finished difference Result 12701 states and 50085 transitions. [2021-01-20 14:48:49,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-01-20 14:48:49,481 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 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 56 [2021-01-20 14:48:49,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:48:49,522 INFO L225 Difference]: With dead ends: 12701 [2021-01-20 14:48:49,522 INFO L226 Difference]: Without dead ends: 8861 [2021-01-20 14:48:49,523 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-01-20 14:48:49,523 INFO L78 Accepts]: Start accepts. Automaton has 8861 states. Word has length 56 [2021-01-20 14:48:49,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:48:49,524 INFO L481 AbstractCegarLoop]: Abstraction has 8861 states. [2021-01-20 14:48:49,524 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:48:49,524 INFO L276 IsEmpty]: Start isEmpty. Operand 8861 states. [2021-01-20 14:48:49,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-01-20 14:48:49,550 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:48:49,550 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 14:48:49,550 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-01-20 14:48:49,550 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:48:49,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:48:49,551 INFO L82 PathProgramCache]: Analyzing trace with hash -1848601464, now seen corresponding path program 1 times [2021-01-20 14:48:49,552 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:48:49,552 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577289568] [2021-01-20 14:48:49,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:48:49,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:48:49,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 14:48:49,696 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577289568] [2021-01-20 14:48:49,696 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:48:49,696 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-01-20 14:48:49,696 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163349951] [2021-01-20 14:48:49,697 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-01-20 14:48:49,697 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:48:49,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-01-20 14:48:49,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-01-20 14:48:49,699 INFO L87 Difference]: Start difference. First operand 8861 states. Second operand has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:48:50,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:48:50,003 INFO L93 Difference]: Finished difference Result 8960 states and 34343 transitions. [2021-01-20 14:48:50,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-01-20 14:48:50,004 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2021-01-20 14:48:50,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:48:50,024 INFO L225 Difference]: With dead ends: 8960 [2021-01-20 14:48:50,025 INFO L226 Difference]: Without dead ends: 6080 [2021-01-20 14:48:50,025 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2021-01-20 14:48:50,025 INFO L78 Accepts]: Start accepts. Automaton has 6080 states. Word has length 57 [2021-01-20 14:48:50,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:48:50,026 INFO L481 AbstractCegarLoop]: Abstraction has 6080 states. [2021-01-20 14:48:50,026 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:48:50,026 INFO L276 IsEmpty]: Start isEmpty. Operand 6080 states. [2021-01-20 14:48:50,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-01-20 14:48:50,041 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:48:50,041 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 14:48:50,041 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-01-20 14:48:50,041 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:48:50,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:48:50,042 INFO L82 PathProgramCache]: Analyzing trace with hash -1336651321, now seen corresponding path program 1 times [2021-01-20 14:48:50,042 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:48:50,042 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206858768] [2021-01-20 14:48:50,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:48:50,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:48:50,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 14:48:50,180 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206858768] [2021-01-20 14:48:50,181 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:48:50,181 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-01-20 14:48:50,181 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46181928] [2021-01-20 14:48:50,181 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-01-20 14:48:50,182 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:48:50,182 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-01-20 14:48:50,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-01-20 14:48:50,183 INFO L87 Difference]: Start difference. First operand 6080 states. Second operand has 9 states, 9 states have (on average 6.555555555555555) internal successors, (59), 9 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:48:50,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:48:50,622 INFO L93 Difference]: Finished difference Result 4838 states and 17777 transitions. [2021-01-20 14:48:50,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-01-20 14:48:50,622 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.555555555555555) internal successors, (59), 9 states have internal predecessors, (59), 0 states have call successors, (0), 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 59 [2021-01-20 14:48:50,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:48:50,640 INFO L225 Difference]: With dead ends: 4838 [2021-01-20 14:48:50,640 INFO L226 Difference]: Without dead ends: 3434 [2021-01-20 14:48:50,642 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=76, Invalid=196, Unknown=0, NotChecked=0, Total=272 [2021-01-20 14:48:50,643 INFO L78 Accepts]: Start accepts. Automaton has 3434 states. Word has length 59 [2021-01-20 14:48:50,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:48:50,643 INFO L481 AbstractCegarLoop]: Abstraction has 3434 states. [2021-01-20 14:48:50,643 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 6.555555555555555) internal successors, (59), 9 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:48:50,643 INFO L276 IsEmpty]: Start isEmpty. Operand 3434 states. [2021-01-20 14:48:50,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-01-20 14:48:50,657 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:48:50,657 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 14:48:50,658 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-01-20 14:48:50,658 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:48:50,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:48:50,659 INFO L82 PathProgramCache]: Analyzing trace with hash -106927622, now seen corresponding path program 1 times [2021-01-20 14:48:50,660 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:48:50,660 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654114710] [2021-01-20 14:48:50,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:48:50,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:48:50,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 14:48:50,825 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654114710] [2021-01-20 14:48:50,825 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:48:50,825 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 14:48:50,826 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516124398] [2021-01-20 14:48:50,826 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 14:48:50,829 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:48:50,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 14:48:50,830 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-20 14:48:50,832 INFO L87 Difference]: Start difference. First operand 3434 states. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:48:50,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:48:50,974 INFO L93 Difference]: Finished difference Result 5059 states and 18255 transitions. [2021-01-20 14:48:50,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-20 14:48:50,974 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 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 61 [2021-01-20 14:48:50,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:48:50,980 INFO L225 Difference]: With dead ends: 5059 [2021-01-20 14:48:50,980 INFO L226 Difference]: Without dead ends: 2282 [2021-01-20 14:48:50,981 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-01-20 14:48:50,981 INFO L78 Accepts]: Start accepts. Automaton has 2282 states. Word has length 61 [2021-01-20 14:48:50,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:48:50,981 INFO L481 AbstractCegarLoop]: Abstraction has 2282 states. [2021-01-20 14:48:50,981 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:48:50,982 INFO L276 IsEmpty]: Start isEmpty. Operand 2282 states. [2021-01-20 14:48:50,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-01-20 14:48:50,985 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:48:50,985 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 14:48:50,986 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-01-20 14:48:50,986 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:48:50,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:48:50,986 INFO L82 PathProgramCache]: Analyzing trace with hash 903632240, now seen corresponding path program 2 times [2021-01-20 14:48:50,986 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:48:50,987 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333384973] [2021-01-20 14:48:50,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:48:51,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:48:51,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 14:48:51,155 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333384973] [2021-01-20 14:48:51,155 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:48:51,155 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 14:48:51,156 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001170297] [2021-01-20 14:48:51,156 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 14:48:51,156 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:48:51,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 14:48:51,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-20 14:48:51,157 INFO L87 Difference]: Start difference. First operand 2282 states. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:48:51,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:48:51,256 INFO L93 Difference]: Finished difference Result 1958 states and 6906 transitions. [2021-01-20 14:48:51,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-20 14:48:51,257 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 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 61 [2021-01-20 14:48:51,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:48:51,257 INFO L225 Difference]: With dead ends: 1958 [2021-01-20 14:48:51,257 INFO L226 Difference]: Without dead ends: 0 [2021-01-20 14:48:51,258 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-01-20 14:48:51,258 INFO L78 Accepts]: Start accepts. Automaton has 0 states. Word has length 61 [2021-01-20 14:48:51,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:48:51,258 INFO L481 AbstractCegarLoop]: Abstraction has 0 states. [2021-01-20 14:48:51,258 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:48:51,259 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states. [2021-01-20 14:48:51,259 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-01-20 14:48:51,259 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-01-20 14:48:51,264 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.01 02:48:51 BasicIcfg [2021-01-20 14:48:51,264 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-20 14:48:51,266 INFO L168 Benchmark]: Toolchain (without parser) took 20664.60 ms. Allocated memory was 302.0 MB in the beginning and 4.6 GB in the end (delta: 4.3 GB). Free memory was 276.1 MB in the beginning and 3.9 GB in the end (delta: -3.6 GB). Peak memory consumption was 684.1 MB. Max. memory is 16.0 GB. [2021-01-20 14:48:51,267 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 302.0 MB. Free memory is still 272.3 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-01-20 14:48:51,267 INFO L168 Benchmark]: CACSL2BoogieTranslator took 637.08 ms. Allocated memory is still 302.0 MB. Free memory was 275.8 MB in the beginning and 274.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 27.2 MB. Max. memory is 16.0 GB. [2021-01-20 14:48:51,268 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.72 ms. Allocated memory is still 302.0 MB. Free memory was 274.1 MB in the beginning and 272.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-01-20 14:48:51,269 INFO L168 Benchmark]: Boogie Preprocessor took 28.84 ms. Allocated memory is still 302.0 MB. Free memory was 272.1 MB in the beginning and 271.0 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-01-20 14:48:51,269 INFO L168 Benchmark]: RCFGBuilder took 742.45 ms. Allocated memory is still 302.0 MB. Free memory was 271.0 MB in the beginning and 245.9 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2021-01-20 14:48:51,270 INFO L168 Benchmark]: TraceAbstraction took 19190.21 ms. Allocated memory was 302.0 MB in the beginning and 4.6 GB in the end (delta: 4.3 GB). Free memory was 245.9 MB in the beginning and 3.9 GB in the end (delta: -3.7 GB). Peak memory consumption was 654.8 MB. Max. memory is 16.0 GB. [2021-01-20 14:48:51,275 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 302.0 MB. Free memory is still 272.3 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 637.08 ms. Allocated memory is still 302.0 MB. Free memory was 275.8 MB in the beginning and 274.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 27.2 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 50.72 ms. Allocated memory is still 302.0 MB. Free memory was 274.1 MB in the beginning and 272.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 28.84 ms. Allocated memory is still 302.0 MB. Free memory was 272.1 MB in the beginning and 271.0 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 742.45 ms. Allocated memory is still 302.0 MB. Free memory was 271.0 MB in the beginning and 245.9 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 19190.21 ms. Allocated memory was 302.0 MB in the beginning and 4.6 GB in the end (delta: 4.3 GB). Free memory was 245.9 MB in the beginning and 3.9 GB in the end (delta: -3.7 GB). Peak memory consumption was 654.8 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 17]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 89 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 18.9s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 6.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 9.5s, HoareTripleCheckerStatistics: 1097 SDtfs, 1815 SDslu, 3636 SDs, 0 SdLazy, 448 SolverSat, 112 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 129 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 1.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=54313occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 549 NumberOfCodeBlocks, 549 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 539 ConstructedInterpolants, 0 QuantifiedInterpolants, 83341 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...