/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-keepdead.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe012_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-e5469eb [2021-01-20 21:13:02,612 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-20 21:13:02,615 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-20 21:13:02,669 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-20 21:13:02,670 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-20 21:13:02,671 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-20 21:13:02,673 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-20 21:13:02,676 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-20 21:13:02,678 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-20 21:13:02,679 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-20 21:13:02,680 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-20 21:13:02,681 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-20 21:13:02,682 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-20 21:13:02,683 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-20 21:13:02,684 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-20 21:13:02,686 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-20 21:13:02,687 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-20 21:13:02,688 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-20 21:13:02,690 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-20 21:13:02,692 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-20 21:13:02,694 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-20 21:13:02,696 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-20 21:13:02,697 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-20 21:13:02,698 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-20 21:13:02,701 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-01-20 21:13:02,705 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-20 21:13:02,706 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-20 21:13:02,707 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-20 21:13:02,708 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-20 21:13:02,709 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-20 21:13:02,710 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-20 21:13:02,711 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-20 21:13:02,711 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-20 21:13:02,711 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-20 21:13:02,712 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-20 21:13:02,713 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-20 21:13:02,714 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-keepdead.epf [2021-01-20 21:13:02,742 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-20 21:13:02,743 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-20 21:13:02,744 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-20 21:13:02,745 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-20 21:13:02,745 INFO L138 SettingsManager]: * Use SBE=true [2021-01-20 21:13:02,745 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-20 21:13:02,746 INFO L138 SettingsManager]: * sizeof long=4 [2021-01-20 21:13:02,746 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-20 21:13:02,746 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-01-20 21:13:02,746 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-20 21:13:02,747 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-20 21:13:02,747 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-20 21:13:02,747 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-20 21:13:02,748 INFO L138 SettingsManager]: * sizeof long double=12 [2021-01-20 21:13:02,748 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-20 21:13:02,748 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-20 21:13:02,748 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-20 21:13:02,749 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-20 21:13:02,749 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-20 21:13:02,749 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-01-20 21:13:02,749 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-20 21:13:02,750 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-20 21:13:02,750 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-20 21:13:02,750 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-20 21:13:02,751 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-20 21:13:02,751 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-20 21:13:02,751 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-20 21:13:02,751 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-01-20 21:13:02,751 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-20 21:13:02,752 INFO L138 SettingsManager]: * Remove dead ends from automaton=false [2021-01-20 21:13:02,752 INFO L138 SettingsManager]: * Minimization of abstraction=NONE [2021-01-20 21:13:02,752 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-20 21:13:03,114 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-20 21:13:03,138 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-20 21:13:03,141 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-20 21:13:03,143 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-20 21:13:03,143 INFO L275 PluginConnector]: CDTParser initialized [2021-01-20 21:13:03,144 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe012_tso.oepc.i [2021-01-20 21:13:03,228 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c4437845/ee86637510f04e0582acf3d85f6103d9/FLAGb1f515136 [2021-01-20 21:13:03,953 INFO L306 CDTParser]: Found 1 translation units. [2021-01-20 21:13:03,953 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe012_tso.oepc.i [2021-01-20 21:13:03,978 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c4437845/ee86637510f04e0582acf3d85f6103d9/FLAGb1f515136 [2021-01-20 21:13:04,229 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c4437845/ee86637510f04e0582acf3d85f6103d9 [2021-01-20 21:13:04,234 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-20 21:13:04,239 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-01-20 21:13:04,242 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-20 21:13:04,242 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-20 21:13:04,246 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-20 21:13:04,248 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 09:13:04" (1/1) ... [2021-01-20 21:13:04,255 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62321b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:13:04, skipping insertion in model container [2021-01-20 21:13:04,256 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 09:13:04" (1/1) ... [2021-01-20 21:13:04,265 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-20 21:13:04,326 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-01-20 21:13:04,652 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-20 21:13:04,662 INFO L203 MainTranslator]: Completed pre-run [2021-01-20 21:13:04,712 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-20 21:13:04,805 INFO L208 MainTranslator]: Completed translation [2021-01-20 21:13:04,806 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:13:04 WrapperNode [2021-01-20 21:13:04,806 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-20 21:13:04,807 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-20 21:13:04,807 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-20 21:13:04,808 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-20 21:13:04,817 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:13:04" (1/1) ... [2021-01-20 21:13:04,834 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:13:04" (1/1) ... [2021-01-20 21:13:04,859 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-20 21:13:04,860 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-20 21:13:04,860 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-20 21:13:04,860 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-20 21:13:04,869 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:13:04" (1/1) ... [2021-01-20 21:13:04,870 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:13:04" (1/1) ... [2021-01-20 21:13:04,873 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:13:04" (1/1) ... [2021-01-20 21:13:04,874 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:13:04" (1/1) ... [2021-01-20 21:13:04,880 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:13:04" (1/1) ... [2021-01-20 21:13:04,883 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:13:04" (1/1) ... [2021-01-20 21:13:04,885 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:13:04" (1/1) ... [2021-01-20 21:13:04,889 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-20 21:13:04,890 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-20 21:13:04,890 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-20 21:13:04,890 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-20 21:13:04,891 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:13:04" (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 21:13:04,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-01-20 21:13:04,993 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-01-20 21:13:04,993 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-20 21:13:04,993 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-01-20 21:13:04,993 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-01-20 21:13:04,994 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-01-20 21:13:04,994 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-01-20 21:13:04,994 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-01-20 21:13:04,994 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-01-20 21:13:04,994 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-01-20 21:13:04,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-20 21:13:04,995 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-01-20 21:13:04,996 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-20 21:13:04,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-20 21:13:04,998 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 21:13:05,397 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-20 21:13:05,398 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2021-01-20 21:13:05,400 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 09:13:05 BoogieIcfgContainer [2021-01-20 21:13:05,400 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-20 21:13:05,402 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-20 21:13:05,402 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-20 21:13:05,406 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-20 21:13:05,406 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.01 09:13:04" (1/3) ... [2021-01-20 21:13:05,407 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f3031cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 09:13:05, skipping insertion in model container [2021-01-20 21:13:05,407 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:13:04" (2/3) ... [2021-01-20 21:13:05,408 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f3031cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 09:13:05, skipping insertion in model container [2021-01-20 21:13:05,408 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 09:13:05" (3/3) ... [2021-01-20 21:13:05,409 INFO L111 eAbstractionObserver]: Analyzing ICFG safe012_tso.oepc.i [2021-01-20 21:13:05,426 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-01-20 21:13:05,426 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-20 21:13:05,430 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-01-20 21:13:05,431 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-01-20 21:13:05,470 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:13:05,470 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:13:05,471 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:13:05,471 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:13:05,471 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:13:05,471 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:13:05,472 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:13:05,472 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:13:05,472 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:13:05,473 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:13:05,473 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:13:05,473 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:13:05,474 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:13:05,474 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:13:05,474 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:13:05,474 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:13:05,474 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:13:05,475 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:13:05,475 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:13:05,475 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:13:05,475 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:13:05,476 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:13:05,476 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:13:05,476 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:13:05,477 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:13:05,477 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:13:05,477 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:13:05,478 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:13:05,478 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:13:05,478 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:13:05,478 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:13:05,478 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:13:05,479 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:13:05,479 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:13:05,480 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:13:05,480 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:13:05,482 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:13:05,483 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:13:05,483 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:13:05,483 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:13:05,491 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:13:05,492 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:13:05,492 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:13:05,492 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:13:05,502 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:13:05,502 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:13:05,502 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:13:05,502 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:13:05,506 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-01-20 21:13:05,520 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-01-20 21:13:05,544 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-20 21:13:05,544 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-20 21:13:05,544 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-20 21:13:05,544 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-20 21:13:05,545 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-20 21:13:05,545 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-20 21:13:05,545 INFO L383 AbstractCegarLoop]: Minimize is NONE [2021-01-20 21:13:05,545 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-20 21:13:05,558 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 87 places, 80 transitions, 175 flow [2021-01-20 21:13:06,388 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 9849 states, 9847 states have (on average 3.6144003249720726) internal successors, (35591), 9848 states have internal predecessors, (35591), 0 states have call successors, (0), 0 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 21:13:06,538 INFO L276 IsEmpty]: Start isEmpty. Operand has 9849 states, 9847 states have (on average 3.6144003249720726) internal successors, (35591), 9848 states have internal predecessors, (35591), 0 states have call successors, (0), 0 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 21:13:06,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-01-20 21:13:06,596 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:13:06,597 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] [2021-01-20 21:13:06,597 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:13:06,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:13:06,604 INFO L82 PathProgramCache]: Analyzing trace with hash 188737205, now seen corresponding path program 1 times [2021-01-20 21:13:06,614 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:13:06,614 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392994512] [2021-01-20 21:13:06,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:13:06,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:13:07,070 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 21:13:07,071 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392994512] [2021-01-20 21:13:07,072 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:13:07,072 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 21:13:07,073 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409722054] [2021-01-20 21:13:07,079 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 21:13:07,079 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:13:07,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 21:13:07,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 21:13:07,123 INFO L87 Difference]: Start difference. First operand has 9849 states, 9847 states have (on average 3.6144003249720726) internal successors, (35591), 9848 states have internal predecessors, (35591), 0 states have call successors, (0), 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 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 0 states have call successors, (0), 0 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 21:13:07,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:13:07,474 INFO L93 Difference]: Finished difference Result 12201 states and 42465 transitions. [2021-01-20 21:13:07,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-20 21:13:07,476 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 0 states have call successors, (0), 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 43 [2021-01-20 21:13:07,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:13:07,479 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 21:13:07,479 INFO L78 Accepts]: Start accepts. Automaton has 12201 states and 42465 transitions. Word has length 43 [2021-01-20 21:13:07,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:13:07,481 INFO L481 AbstractCegarLoop]: Abstraction has 12201 states and 42465 transitions. [2021-01-20 21:13:07,481 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 0 states have call successors, (0), 0 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 21:13:07,481 INFO L276 IsEmpty]: Start isEmpty. Operand 12201 states and 42465 transitions. [2021-01-20 21:13:07,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-01-20 21:13:07,500 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:13:07,500 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] [2021-01-20 21:13:07,501 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-20 21:13:07,501 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:13:07,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:13:07,502 INFO L82 PathProgramCache]: Analyzing trace with hash 1390475924, now seen corresponding path program 1 times [2021-01-20 21:13:07,502 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:13:07,503 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960731465] [2021-01-20 21:13:07,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:13:07,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:13:07,680 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 21:13:07,681 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960731465] [2021-01-20 21:13:07,681 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:13:07,681 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 21:13:07,682 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283585713] [2021-01-20 21:13:07,683 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 21:13:07,683 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:13:07,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 21:13:07,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-20 21:13:07,685 INFO L87 Difference]: Start difference. First operand 12201 states and 42465 transitions. Second operand has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 0 states have call successors, (0), 0 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 21:13:08,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:13:08,254 INFO L93 Difference]: Finished difference Result 16821 states and 57821 transitions. [2021-01-20 21:13:08,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-01-20 21:13:08,255 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 0 states have call successors, (0), 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 45 [2021-01-20 21:13:08,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:13:08,256 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2021-01-20 21:13:08,256 INFO L78 Accepts]: Start accepts. Automaton has 16821 states and 57821 transitions. Word has length 45 [2021-01-20 21:13:08,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:13:08,257 INFO L481 AbstractCegarLoop]: Abstraction has 16821 states and 57821 transitions. [2021-01-20 21:13:08,257 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 0 states have call successors, (0), 0 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 21:13:08,257 INFO L276 IsEmpty]: Start isEmpty. Operand 16821 states and 57821 transitions. [2021-01-20 21:13:08,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-01-20 21:13:08,350 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:13:08,350 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] [2021-01-20 21:13:08,351 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-20 21:13:08,351 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:13:08,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:13:08,357 INFO L82 PathProgramCache]: Analyzing trace with hash -983473269, now seen corresponding path program 1 times [2021-01-20 21:13:08,357 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:13:08,358 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475906821] [2021-01-20 21:13:08,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:13:08,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:13:08,540 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 21:13:08,540 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475906821] [2021-01-20 21:13:08,541 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:13:08,541 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 21:13:08,541 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430489301] [2021-01-20 21:13:08,542 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 21:13:08,542 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:13:08,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 21:13:08,543 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-20 21:13:08,544 INFO L87 Difference]: Start difference. First operand 16821 states and 57821 transitions. Second operand has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 0 states have call successors, (0), 0 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 21:13:09,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:13:09,179 INFO L93 Difference]: Finished difference Result 28421 states and 96001 transitions. [2021-01-20 21:13:09,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-01-20 21:13:09,180 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 0 states have call successors, (0), 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 48 [2021-01-20 21:13:09,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:13:09,181 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2021-01-20 21:13:09,181 INFO L78 Accepts]: Start accepts. Automaton has 28421 states and 96001 transitions. Word has length 48 [2021-01-20 21:13:09,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:13:09,182 INFO L481 AbstractCegarLoop]: Abstraction has 28421 states and 96001 transitions. [2021-01-20 21:13:09,182 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 0 states have call successors, (0), 0 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 21:13:09,182 INFO L276 IsEmpty]: Start isEmpty. Operand 28421 states and 96001 transitions. [2021-01-20 21:13:09,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-01-20 21:13:09,241 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:13:09,241 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, 1, 1] [2021-01-20 21:13:09,241 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-20 21:13:09,242 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:13:09,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:13:09,242 INFO L82 PathProgramCache]: Analyzing trace with hash -514850718, now seen corresponding path program 1 times [2021-01-20 21:13:09,243 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:13:09,243 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397797345] [2021-01-20 21:13:09,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:13:09,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:13:09,380 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 21:13:09,381 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397797345] [2021-01-20 21:13:09,381 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:13:09,381 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 21:13:09,382 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56386587] [2021-01-20 21:13:09,383 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 21:13:09,383 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:13:09,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 21:13:09,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 21:13:09,385 INFO L87 Difference]: Start difference. First operand 28421 states and 96001 transitions. 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 21:13:09,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:13:09,772 INFO L93 Difference]: Finished difference Result 26718 states and 88182 transitions. [2021-01-20 21:13:09,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-01-20 21:13:09,773 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 21:13:09,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:13:09,775 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-20 21:13:09,775 INFO L78 Accepts]: Start accepts. Automaton has 26718 states and 88182 transitions. Word has length 51 [2021-01-20 21:13:09,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:13:09,775 INFO L481 AbstractCegarLoop]: Abstraction has 26718 states and 88182 transitions. [2021-01-20 21:13:09,776 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 21:13:09,776 INFO L276 IsEmpty]: Start isEmpty. Operand 26718 states and 88182 transitions. [2021-01-20 21:13:09,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-01-20 21:13:09,975 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:13:09,976 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] [2021-01-20 21:13:09,976 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-01-20 21:13:09,976 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:13:09,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:13:09,977 INFO L82 PathProgramCache]: Analyzing trace with hash -578455667, now seen corresponding path program 1 times [2021-01-20 21:13:09,977 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:13:09,977 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173166451] [2021-01-20 21:13:09,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:13:09,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:13:10,121 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 21:13:10,122 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173166451] [2021-01-20 21:13:10,122 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:13:10,122 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 21:13:10,123 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063686106] [2021-01-20 21:13:10,123 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 21:13:10,123 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:13:10,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 21:13:10,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-01-20 21:13:10,125 INFO L87 Difference]: Start difference. First operand 26718 states and 88182 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:13:10,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:13:10,525 INFO L93 Difference]: Finished difference Result 17973 states and 57650 transitions. [2021-01-20 21:13:10,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-01-20 21:13:10,526 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2021-01-20 21:13:10,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:13:10,529 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-01-20 21:13:10,529 INFO L78 Accepts]: Start accepts. Automaton has 17973 states and 57650 transitions. Word has length 52 [2021-01-20 21:13:10,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:13:10,530 INFO L481 AbstractCegarLoop]: Abstraction has 17973 states and 57650 transitions. [2021-01-20 21:13:10,530 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:13:10,530 INFO L276 IsEmpty]: Start isEmpty. Operand 17973 states and 57650 transitions. [2021-01-20 21:13:10,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-01-20 21:13:10,591 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:13:10,591 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 21:13:10,592 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-01-20 21:13:10,592 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:13:10,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:13:10,593 INFO L82 PathProgramCache]: Analyzing trace with hash 1654188560, now seen corresponding path program 1 times [2021-01-20 21:13:10,597 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:13:10,598 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290192288] [2021-01-20 21:13:10,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:13:10,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:13:10,801 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 21:13:10,802 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290192288] [2021-01-20 21:13:10,803 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:13:10,804 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-01-20 21:13:10,804 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230291226] [2021-01-20 21:13:10,805 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-01-20 21:13:10,805 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:13:10,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-01-20 21:13:10,806 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-01-20 21:13:10,807 INFO L87 Difference]: Start difference. First operand 17973 states and 57650 transitions. Second operand has 8 states, 8 states have (on average 6.625) internal successors, (53), 8 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 21:13:11,080 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2021-01-20 21:13:11,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:13:11,290 INFO L93 Difference]: Finished difference Result 12429 states and 39395 transitions. [2021-01-20 21:13:11,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-01-20 21:13:11,291 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 8 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 21:13:11,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:13:11,292 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=116, Invalid=226, Unknown=0, NotChecked=0, Total=342 [2021-01-20 21:13:11,292 INFO L78 Accepts]: Start accepts. Automaton has 12429 states and 39395 transitions. Word has length 53 [2021-01-20 21:13:11,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:13:11,294 INFO L481 AbstractCegarLoop]: Abstraction has 12429 states and 39395 transitions. [2021-01-20 21:13:11,294 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 8 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 21:13:11,294 INFO L276 IsEmpty]: Start isEmpty. Operand 12429 states and 39395 transitions. [2021-01-20 21:13:11,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-01-20 21:13:11,348 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:13:11,348 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 21:13:11,349 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-01-20 21:13:11,349 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:13:11,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:13:11,350 INFO L82 PathProgramCache]: Analyzing trace with hash -342773393, now seen corresponding path program 1 times [2021-01-20 21:13:11,350 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:13:11,351 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916729622] [2021-01-20 21:13:11,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:13:11,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:13:11,479 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 21:13:11,479 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916729622] [2021-01-20 21:13:11,479 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:13:11,480 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 21:13:11,480 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783612579] [2021-01-20 21:13:11,480 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 21:13:11,480 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:13:11,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 21:13:11,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-20 21:13:11,481 INFO L87 Difference]: Start difference. First operand 12429 states and 39395 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 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 21:13:11,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:13:11,803 INFO L93 Difference]: Finished difference Result 18641 states and 58535 transitions. [2021-01-20 21:13:11,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-20 21:13:11,804 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 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 21:13:11,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:13:11,805 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-01-20 21:13:11,805 INFO L78 Accepts]: Start accepts. Automaton has 18641 states and 58535 transitions. Word has length 55 [2021-01-20 21:13:11,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:13:11,805 INFO L481 AbstractCegarLoop]: Abstraction has 18641 states and 58535 transitions. [2021-01-20 21:13:11,805 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 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 21:13:11,805 INFO L276 IsEmpty]: Start isEmpty. Operand 18641 states and 58535 transitions. [2021-01-20 21:13:11,852 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-01-20 21:13:11,852 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-01-20 21:13:11,857 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.01 09:13:11 BasicIcfg [2021-01-20 21:13:11,858 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-20 21:13:11,860 INFO L168 Benchmark]: Toolchain (without parser) took 7620.81 ms. Allocated memory was 302.0 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 272.9 MB in the beginning and 1.2 GB in the end (delta: -943.4 MB). Peak memory consumption was 259.3 MB. Max. memory is 16.0 GB. [2021-01-20 21:13:11,860 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 302.0 MB. Free memory is still 273.0 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-01-20 21:13:11,861 INFO L168 Benchmark]: CACSL2BoogieTranslator took 564.64 ms. Allocated memory is still 302.0 MB. Free memory was 272.9 MB in the beginning and 241.9 MB in the end (delta: 31.0 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. [2021-01-20 21:13:11,862 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.71 ms. Allocated memory is still 302.0 MB. Free memory was 241.9 MB in the beginning and 239.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-01-20 21:13:11,863 INFO L168 Benchmark]: Boogie Preprocessor took 29.58 ms. Allocated memory is still 302.0 MB. Free memory was 239.9 MB in the beginning and 238.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-01-20 21:13:11,863 INFO L168 Benchmark]: RCFGBuilder took 510.50 ms. Allocated memory is still 302.0 MB. Free memory was 238.6 MB in the beginning and 214.8 MB in the end (delta: 23.8 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2021-01-20 21:13:11,864 INFO L168 Benchmark]: TraceAbstraction took 6455.61 ms. Allocated memory was 302.0 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 214.8 MB in the beginning and 1.2 GB in the end (delta: -1.0 GB). Peak memory consumption was 200.6 MB. Max. memory is 16.0 GB. [2021-01-20 21:13:11,868 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 302.0 MB. Free memory is still 273.0 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 564.64 ms. Allocated memory is still 302.0 MB. Free memory was 272.9 MB in the beginning and 241.9 MB in the end (delta: 31.0 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 51.71 ms. Allocated memory is still 302.0 MB. Free memory was 241.9 MB in the beginning and 239.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 29.58 ms. Allocated memory is still 302.0 MB. Free memory was 239.9 MB in the beginning and 238.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 510.50 ms. Allocated memory is still 302.0 MB. Free memory was 238.6 MB in the beginning and 214.8 MB in the end (delta: 23.8 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 6455.61 ms. Allocated memory was 302.0 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 214.8 MB in the beginning and 1.2 GB in the end (delta: -1.0 GB). Peak memory consumption was 200.6 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 4 procedures, 78 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6.3s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 3.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.8s, HoareTripleCheckerStatistics: 784 SDtfs, 1708 SDslu, 2784 SDs, 0 SdLazy, 315 SolverSat, 91 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 99 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28421occurred in iteration=3, 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, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 347 NumberOfCodeBlocks, 347 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 340 ConstructedInterpolants, 0 QuantifiedInterpolants, 45502 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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...