/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Separate.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/bench-exp2x6.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bc79526 [2022-01-18 10:46:24,741 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-18 10:46:24,742 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-18 10:46:24,767 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-18 10:46:24,767 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-18 10:46:24,768 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-18 10:46:24,769 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-18 10:46:24,770 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-18 10:46:24,771 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-18 10:46:24,772 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-18 10:46:24,772 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-18 10:46:24,773 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-18 10:46:24,773 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-18 10:46:24,774 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-18 10:46:24,775 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-18 10:46:24,776 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-18 10:46:24,776 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-18 10:46:24,777 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-18 10:46:24,778 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-18 10:46:24,779 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-18 10:46:24,780 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-18 10:46:24,782 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-18 10:46:24,783 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-18 10:46:24,783 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-18 10:46:24,785 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-18 10:46:24,787 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-18 10:46:24,787 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-18 10:46:24,788 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-18 10:46:24,788 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-18 10:46:24,789 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-18 10:46:24,789 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-18 10:46:24,789 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-18 10:46:24,790 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-18 10:46:24,790 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-18 10:46:24,790 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-18 10:46:24,791 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-18 10:46:24,796 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Separate.epf [2022-01-18 10:46:24,816 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-18 10:46:24,816 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-18 10:46:24,816 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-18 10:46:24,816 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-18 10:46:24,817 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-18 10:46:24,817 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-18 10:46:24,817 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-18 10:46:24,817 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-18 10:46:24,818 INFO L138 SettingsManager]: * Use SBE=true [2022-01-18 10:46:24,818 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-18 10:46:24,818 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-18 10:46:24,818 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-18 10:46:24,818 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-18 10:46:24,818 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-18 10:46:24,819 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-18 10:46:24,819 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-18 10:46:24,819 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-18 10:46:24,819 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-18 10:46:24,819 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-18 10:46:24,819 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-18 10:46:24,820 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-18 10:46:24,820 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-18 10:46:24,820 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-18 10:46:24,820 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-18 10:46:24,820 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-18 10:46:24,820 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 10:46:24,821 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-18 10:46:24,821 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-18 10:46:24,821 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-18 10:46:24,821 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-18 10:46:24,821 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-18 10:46:24,821 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-18 10:46:24,822 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-18 10:46:24,822 INFO L138 SettingsManager]: * Check the insufficient thread errors last=true [2022-01-18 10:46:24,822 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-18 10:46:25,027 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-18 10:46:25,046 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-18 10:46:25,048 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-18 10:46:25,049 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-18 10:46:25,057 INFO L275 PluginConnector]: CDTParser initialized [2022-01-18 10:46:25,058 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/bench-exp2x6.wvr.c [2022-01-18 10:46:25,101 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb65a6b53/0fade95f45f6426090f3682ab99f36e4/FLAGa4c31f939 [2022-01-18 10:46:25,456 INFO L306 CDTParser]: Found 1 translation units. [2022-01-18 10:46:25,457 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/bench-exp2x6.wvr.c [2022-01-18 10:46:25,461 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb65a6b53/0fade95f45f6426090f3682ab99f36e4/FLAGa4c31f939 [2022-01-18 10:46:25,470 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb65a6b53/0fade95f45f6426090f3682ab99f36e4 [2022-01-18 10:46:25,472 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-18 10:46:25,472 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-18 10:46:25,473 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-18 10:46:25,474 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-18 10:46:25,476 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-18 10:46:25,476 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 10:46:25" (1/1) ... [2022-01-18 10:46:25,477 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4de9ecfb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 10:46:25, skipping insertion in model container [2022-01-18 10:46:25,477 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 10:46:25" (1/1) ... [2022-01-18 10:46:25,481 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-18 10:46:25,491 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-18 10:46:25,668 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/bench-exp2x6.wvr.c[2453,2466] [2022-01-18 10:46:25,672 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 10:46:25,677 INFO L203 MainTranslator]: Completed pre-run [2022-01-18 10:46:25,689 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/bench-exp2x6.wvr.c[2453,2466] [2022-01-18 10:46:25,690 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 10:46:25,700 INFO L208 MainTranslator]: Completed translation [2022-01-18 10:46:25,701 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 10:46:25 WrapperNode [2022-01-18 10:46:25,701 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-18 10:46:25,702 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-18 10:46:25,704 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-18 10:46:25,704 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-18 10:46:25,709 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 10:46:25" (1/1) ... [2022-01-18 10:46:25,721 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 10:46:25" (1/1) ... [2022-01-18 10:46:25,737 INFO L137 Inliner]: procedures = 20, calls = 32, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 91 [2022-01-18 10:46:25,738 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-18 10:46:25,738 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-18 10:46:25,738 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-18 10:46:25,738 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-18 10:46:25,743 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 10:46:25" (1/1) ... [2022-01-18 10:46:25,743 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 10:46:25" (1/1) ... [2022-01-18 10:46:25,745 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 10:46:25" (1/1) ... [2022-01-18 10:46:25,745 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 10:46:25" (1/1) ... [2022-01-18 10:46:25,748 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 10:46:25" (1/1) ... [2022-01-18 10:46:25,750 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 10:46:25" (1/1) ... [2022-01-18 10:46:25,751 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 10:46:25" (1/1) ... [2022-01-18 10:46:25,752 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-18 10:46:25,753 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-18 10:46:25,753 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-18 10:46:25,753 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-18 10:46:25,756 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 10:46:25" (1/1) ... [2022-01-18 10:46:25,762 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 10:46:25,770 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 10:46:25,777 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-18 10:46:25,783 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-18 10:46:25,803 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-18 10:46:25,803 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-01-18 10:46:25,803 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-01-18 10:46:25,803 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-01-18 10:46:25,803 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-01-18 10:46:25,803 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-01-18 10:46:25,804 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-01-18 10:46:25,804 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-01-18 10:46:25,804 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-01-18 10:46:25,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-18 10:46:25,804 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-18 10:46:25,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-18 10:46:25,804 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-18 10:46:25,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-18 10:46:25,804 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-18 10:46:25,804 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-18 10:46:25,805 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-18 10:46:25,910 INFO L234 CfgBuilder]: Building ICFG [2022-01-18 10:46:25,911 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-18 10:46:26,056 INFO L275 CfgBuilder]: Performing block encoding [2022-01-18 10:46:26,062 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-18 10:46:26,062 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-01-18 10:46:26,063 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 10:46:26 BoogieIcfgContainer [2022-01-18 10:46:26,063 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-18 10:46:26,064 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-18 10:46:26,064 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-18 10:46:26,067 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-18 10:46:26,067 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.01 10:46:25" (1/3) ... [2022-01-18 10:46:26,068 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f220a77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 10:46:26, skipping insertion in model container [2022-01-18 10:46:26,068 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 10:46:25" (2/3) ... [2022-01-18 10:46:26,068 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f220a77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 10:46:26, skipping insertion in model container [2022-01-18 10:46:26,068 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 10:46:26" (3/3) ... [2022-01-18 10:46:26,069 INFO L111 eAbstractionObserver]: Analyzing ICFG bench-exp2x6.wvr.c [2022-01-18 10:46:26,072 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-01-18 10:46:26,072 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-18 10:46:26,072 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-18 10:46:26,072 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-18 10:46:26,099 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:46:26,099 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:46:26,099 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:46:26,099 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:46:26,100 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:46:26,100 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:46:26,101 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:46:26,101 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:46:26,102 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:46:26,102 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:46:26,102 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:46:26,102 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:46:26,103 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:46:26,103 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:46:26,103 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:46:26,103 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:46:26,105 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:46:26,105 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:46:26,107 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:46:26,107 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:46:26,107 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:46:26,107 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:46:26,108 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:46:26,108 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 10:46:26,112 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-01-18 10:46:26,138 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-18 10:46:26,142 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-18 10:46:26,142 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-01-18 10:46:26,149 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 140 places, 137 transitions, 306 flow [2022-01-18 10:46:26,819 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 21692 states, 21691 states have (on average 4.990779586003412) internal successors, (108255), 21691 states have internal predecessors, (108255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:46:26,936 INFO L276 IsEmpty]: Start isEmpty. Operand has 21692 states, 21691 states have (on average 4.990779586003412) internal successors, (108255), 21691 states have internal predecessors, (108255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:46:27,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-01-18 10:46:27,139 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 10:46:27,139 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 10:46:27,140 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 10:46:27,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 10:46:27,149 INFO L85 PathProgramCache]: Analyzing trace with hash -1092536451, now seen corresponding path program 1 times [2022-01-18 10:46:27,156 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 10:46:27,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933591673] [2022-01-18 10:46:27,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 10:46:27,158 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 10:46:27,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 10:46:27,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 10:46:27,328 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 10:46:27,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933591673] [2022-01-18 10:46:27,329 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1933591673] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 10:46:27,329 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 10:46:27,329 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-18 10:46:27,330 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087047088] [2022-01-18 10:46:27,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 10:46:27,333 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-18 10:46:27,333 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 10:46:27,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-18 10:46:27,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-18 10:46:27,392 INFO L87 Difference]: Start difference. First operand has 21692 states, 21691 states have (on average 4.990779586003412) internal successors, (108255), 21691 states have internal predecessors, (108255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 46.0) internal successors, (92), 2 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:46:27,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 10:46:27,776 INFO L93 Difference]: Finished difference Result 21692 states and 98180 transitions. [2022-01-18 10:46:27,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-18 10:46:27,778 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 46.0) internal successors, (92), 2 states have internal predecessors, (92), 0 states have call successors, (0), 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 92 [2022-01-18 10:46:27,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 10:46:27,976 INFO L225 Difference]: With dead ends: 21692 [2022-01-18 10:46:27,976 INFO L226 Difference]: Without dead ends: 21690 [2022-01-18 10:46:27,978 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-18 10:46:27,982 INFO L933 BasicCegarLoop]: 106 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 10:46:27,982 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 106 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 10:46:28,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21690 states. [2022-01-18 10:46:28,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21690 to 21690. [2022-01-18 10:46:28,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21690 states, 21689 states have (on average 4.526626400479506) internal successors, (98178), 21689 states have internal predecessors, (98178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:46:29,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21690 states to 21690 states and 98178 transitions. [2022-01-18 10:46:29,199 INFO L78 Accepts]: Start accepts. Automaton has 21690 states and 98178 transitions. Word has length 92 [2022-01-18 10:46:29,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 10:46:29,200 INFO L470 AbstractCegarLoop]: Abstraction has 21690 states and 98178 transitions. [2022-01-18 10:46:29,200 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 46.0) internal successors, (92), 2 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:46:29,200 INFO L276 IsEmpty]: Start isEmpty. Operand 21690 states and 98178 transitions. [2022-01-18 10:46:29,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-01-18 10:46:29,301 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 10:46:29,301 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 10:46:29,302 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-18 10:46:29,302 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 10:46:29,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 10:46:29,305 INFO L85 PathProgramCache]: Analyzing trace with hash -1883690018, now seen corresponding path program 1 times [2022-01-18 10:46:29,305 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 10:46:29,305 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930319377] [2022-01-18 10:46:29,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 10:46:29,306 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 10:46:29,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 10:46:29,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 10:46:29,688 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 10:46:29,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930319377] [2022-01-18 10:46:29,689 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930319377] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 10:46:29,689 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 10:46:29,689 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 10:46:29,689 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100156429] [2022-01-18 10:46:29,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 10:46:29,690 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 10:46:29,690 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 10:46:29,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 10:46:29,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-01-18 10:46:29,691 INFO L87 Difference]: Start difference. First operand 21690 states and 98178 transitions. Second operand has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:46:30,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 10:46:30,194 INFO L93 Difference]: Finished difference Result 25591 states and 115324 transitions. [2022-01-18 10:46:30,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-18 10:46:30,195 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 0 states have call successors, (0), 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 92 [2022-01-18 10:46:30,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 10:46:30,433 INFO L225 Difference]: With dead ends: 25591 [2022-01-18 10:46:30,433 INFO L226 Difference]: Without dead ends: 25144 [2022-01-18 10:46:30,439 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2022-01-18 10:46:30,440 INFO L933 BasicCegarLoop]: 88 mSDtfsCounter, 125 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 10:46:30,441 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 287 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 10:46:30,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25144 states. [2022-01-18 10:46:31,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25144 to 23029. [2022-01-18 10:46:31,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23029 states, 23028 states have (on average 4.511377453534827) internal successors, (103888), 23028 states have internal predecessors, (103888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:46:31,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23029 states to 23029 states and 103888 transitions. [2022-01-18 10:46:31,264 INFO L78 Accepts]: Start accepts. Automaton has 23029 states and 103888 transitions. Word has length 92 [2022-01-18 10:46:31,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 10:46:31,264 INFO L470 AbstractCegarLoop]: Abstraction has 23029 states and 103888 transitions. [2022-01-18 10:46:31,264 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:46:31,265 INFO L276 IsEmpty]: Start isEmpty. Operand 23029 states and 103888 transitions. [2022-01-18 10:46:31,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-01-18 10:46:31,331 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 10:46:31,332 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 10:46:31,332 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-18 10:46:31,332 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 10:46:31,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 10:46:31,333 INFO L85 PathProgramCache]: Analyzing trace with hash -660876130, now seen corresponding path program 1 times [2022-01-18 10:46:31,333 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 10:46:31,333 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796274145] [2022-01-18 10:46:31,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 10:46:31,333 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 10:46:31,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 10:46:31,433 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 10:46:31,433 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 10:46:31,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796274145] [2022-01-18 10:46:31,434 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796274145] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 10:46:31,434 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 10:46:31,434 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 10:46:31,434 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351757789] [2022-01-18 10:46:31,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 10:46:31,434 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 10:46:31,434 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 10:46:31,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 10:46:31,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-18 10:46:31,435 INFO L87 Difference]: Start difference. First operand 23029 states and 103888 transitions. Second operand has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:46:32,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 10:46:32,044 INFO L93 Difference]: Finished difference Result 32048 states and 143540 transitions. [2022-01-18 10:46:32,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-18 10:46:32,044 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 0 states have call successors, (0), 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 97 [2022-01-18 10:46:32,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 10:46:32,209 INFO L225 Difference]: With dead ends: 32048 [2022-01-18 10:46:32,209 INFO L226 Difference]: Without dead ends: 31739 [2022-01-18 10:46:32,210 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-01-18 10:46:32,210 INFO L933 BasicCegarLoop]: 129 mSDtfsCounter, 192 mSDsluCounter, 364 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 462 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 10:46:32,211 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [192 Valid, 462 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 10:46:32,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31739 states. [2022-01-18 10:46:33,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31739 to 25391. [2022-01-18 10:46:33,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25391 states, 25390 states have (on average 4.498227648680583) internal successors, (114210), 25390 states have internal predecessors, (114210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:46:33,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25391 states to 25391 states and 114210 transitions. [2022-01-18 10:46:33,184 INFO L78 Accepts]: Start accepts. Automaton has 25391 states and 114210 transitions. Word has length 97 [2022-01-18 10:46:33,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 10:46:33,184 INFO L470 AbstractCegarLoop]: Abstraction has 25391 states and 114210 transitions. [2022-01-18 10:46:33,184 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:46:33,185 INFO L276 IsEmpty]: Start isEmpty. Operand 25391 states and 114210 transitions. [2022-01-18 10:46:33,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-01-18 10:46:33,254 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 10:46:33,254 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 10:46:33,254 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-18 10:46:33,255 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 10:46:33,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 10:46:33,255 INFO L85 PathProgramCache]: Analyzing trace with hash -920447929, now seen corresponding path program 1 times [2022-01-18 10:46:33,255 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 10:46:33,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412430939] [2022-01-18 10:46:33,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 10:46:33,256 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 10:46:33,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 10:46:33,456 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 10:46:33,456 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 10:46:33,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412430939] [2022-01-18 10:46:33,457 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412430939] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 10:46:33,457 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 10:46:33,457 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 10:46:33,457 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59112008] [2022-01-18 10:46:33,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 10:46:33,457 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 10:46:33,457 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 10:46:33,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 10:46:33,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-18 10:46:33,458 INFO L87 Difference]: Start difference. First operand 25391 states and 114210 transitions. Second operand has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:46:34,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 10:46:34,119 INFO L93 Difference]: Finished difference Result 39298 states and 174131 transitions. [2022-01-18 10:46:34,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-18 10:46:34,119 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 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 97 [2022-01-18 10:46:34,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 10:46:34,335 INFO L225 Difference]: With dead ends: 39298 [2022-01-18 10:46:34,335 INFO L226 Difference]: Without dead ends: 39298 [2022-01-18 10:46:34,336 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-01-18 10:46:34,337 INFO L933 BasicCegarLoop]: 117 mSDtfsCounter, 216 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 361 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 10:46:34,337 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [216 Valid, 361 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 10:46:34,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39298 states. [2022-01-18 10:46:35,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39298 to 31001. [2022-01-18 10:46:35,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31001 states, 31000 states have (on average 4.461967741935484) internal successors, (138321), 31000 states have internal predecessors, (138321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:46:35,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31001 states to 31001 states and 138321 transitions. [2022-01-18 10:46:35,303 INFO L78 Accepts]: Start accepts. Automaton has 31001 states and 138321 transitions. Word has length 97 [2022-01-18 10:46:35,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 10:46:35,304 INFO L470 AbstractCegarLoop]: Abstraction has 31001 states and 138321 transitions. [2022-01-18 10:46:35,304 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:46:35,304 INFO L276 IsEmpty]: Start isEmpty. Operand 31001 states and 138321 transitions. [2022-01-18 10:46:35,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-01-18 10:46:35,375 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 10:46:35,376 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 10:46:35,376 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-18 10:46:35,376 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 10:46:35,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 10:46:35,376 INFO L85 PathProgramCache]: Analyzing trace with hash 1969505223, now seen corresponding path program 2 times [2022-01-18 10:46:35,376 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 10:46:35,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220153869] [2022-01-18 10:46:35,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 10:46:35,377 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 10:46:35,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 10:46:35,743 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 10:46:35,743 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 10:46:35,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220153869] [2022-01-18 10:46:35,743 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220153869] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 10:46:35,743 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 10:46:35,743 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 10:46:35,743 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74158813] [2022-01-18 10:46:35,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 10:46:35,744 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 10:46:35,744 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 10:46:35,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 10:46:35,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-01-18 10:46:35,744 INFO L87 Difference]: Start difference. First operand 31001 states and 138321 transitions. Second operand has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:46:36,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 10:46:36,088 INFO L93 Difference]: Finished difference Result 32134 states and 142799 transitions. [2022-01-18 10:46:36,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 10:46:36,089 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 0 states have call successors, (0), 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 97 [2022-01-18 10:46:36,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 10:46:36,200 INFO L225 Difference]: With dead ends: 32134 [2022-01-18 10:46:36,201 INFO L226 Difference]: Without dead ends: 31990 [2022-01-18 10:46:36,201 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2022-01-18 10:46:36,201 INFO L933 BasicCegarLoop]: 106 mSDtfsCounter, 118 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 10:46:36,202 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 295 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 10:46:36,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31990 states. [2022-01-18 10:46:36,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31990 to 30974. [2022-01-18 10:46:37,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30974 states, 30973 states have (on average 4.458399250960514) internal successors, (138090), 30973 states have internal predecessors, (138090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:46:37,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30974 states to 30974 states and 138090 transitions. [2022-01-18 10:46:37,165 INFO L78 Accepts]: Start accepts. Automaton has 30974 states and 138090 transitions. Word has length 97 [2022-01-18 10:46:37,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 10:46:37,165 INFO L470 AbstractCegarLoop]: Abstraction has 30974 states and 138090 transitions. [2022-01-18 10:46:37,166 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:46:37,166 INFO L276 IsEmpty]: Start isEmpty. Operand 30974 states and 138090 transitions. [2022-01-18 10:46:37,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-01-18 10:46:37,245 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 10:46:37,245 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 10:46:37,245 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-18 10:46:37,245 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 10:46:37,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 10:46:37,246 INFO L85 PathProgramCache]: Analyzing trace with hash -734856798, now seen corresponding path program 2 times [2022-01-18 10:46:37,246 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 10:46:37,246 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645736179] [2022-01-18 10:46:37,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 10:46:37,246 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 10:46:37,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 10:46:37,422 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 10:46:37,422 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 10:46:37,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645736179] [2022-01-18 10:46:37,423 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1645736179] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 10:46:37,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1356986527] [2022-01-18 10:46:37,423 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-18 10:46:37,423 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 10:46:37,423 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 10:46:37,428 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 10:46:37,463 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-18 10:46:37,537 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-18 10:46:37,537 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 10:46:37,548 INFO L263 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 7 conjunts are in the unsatisfiable core [2022-01-18 10:46:37,552 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 10:46:38,173 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 10:46:38,173 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 10:46:38,434 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 10:46:38,434 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1356986527] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 10:46:38,434 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 10:46:38,434 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 14 [2022-01-18 10:46:38,434 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047146269] [2022-01-18 10:46:38,435 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 10:46:38,435 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 10:46:38,435 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 10:46:38,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 10:46:38,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2022-01-18 10:46:38,436 INFO L87 Difference]: Start difference. First operand 30974 states and 138090 transitions. Second operand has 14 states, 14 states have (on average 12.428571428571429) internal successors, (174), 14 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:46:39,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 10:46:39,282 INFO L93 Difference]: Finished difference Result 43530 states and 193891 transitions. [2022-01-18 10:46:39,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-18 10:46:39,282 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 12.428571428571429) internal successors, (174), 14 states have internal predecessors, (174), 0 states have call successors, (0), 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 97 [2022-01-18 10:46:39,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 10:46:39,436 INFO L225 Difference]: With dead ends: 43530 [2022-01-18 10:46:39,436 INFO L226 Difference]: Without dead ends: 43530 [2022-01-18 10:46:39,436 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 186 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=147, Invalid=359, Unknown=0, NotChecked=0, Total=506 [2022-01-18 10:46:39,437 INFO L933 BasicCegarLoop]: 113 mSDtfsCounter, 626 mSDsluCounter, 1047 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 626 SdHoareTripleChecker+Valid, 1065 SdHoareTripleChecker+Invalid, 465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 445 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 10:46:39,437 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [626 Valid, 1065 Invalid, 465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 445 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 10:46:39,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43530 states. [2022-01-18 10:46:40,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43530 to 33787. [2022-01-18 10:46:40,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33787 states, 33786 states have (on average 4.468448469780382) internal successors, (150971), 33786 states have internal predecessors, (150971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:46:40,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33787 states to 33787 states and 150971 transitions. [2022-01-18 10:46:40,747 INFO L78 Accepts]: Start accepts. Automaton has 33787 states and 150971 transitions. Word has length 97 [2022-01-18 10:46:40,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 10:46:40,747 INFO L470 AbstractCegarLoop]: Abstraction has 33787 states and 150971 transitions. [2022-01-18 10:46:40,748 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 12.428571428571429) internal successors, (174), 14 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:46:40,748 INFO L276 IsEmpty]: Start isEmpty. Operand 33787 states and 150971 transitions. [2022-01-18 10:46:40,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-01-18 10:46:40,827 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 10:46:40,827 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 10:46:40,844 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-01-18 10:46:41,043 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-01-18 10:46:41,043 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 10:46:41,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 10:46:41,044 INFO L85 PathProgramCache]: Analyzing trace with hash 1260665222, now seen corresponding path program 1 times [2022-01-18 10:46:41,044 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 10:46:41,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006202209] [2022-01-18 10:46:41,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 10:46:41,044 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 10:46:41,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 10:46:41,194 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 10:46:41,194 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 10:46:41,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006202209] [2022-01-18 10:46:41,195 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006202209] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 10:46:41,195 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 10:46:41,195 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 10:46:41,195 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742650057] [2022-01-18 10:46:41,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 10:46:41,195 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 10:46:41,195 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 10:46:41,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 10:46:41,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-01-18 10:46:41,196 INFO L87 Difference]: Start difference. First operand 33787 states and 150971 transitions. Second operand has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:46:41,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 10:46:41,634 INFO L93 Difference]: Finished difference Result 34921 states and 154991 transitions. [2022-01-18 10:46:41,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 10:46:41,634 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 0 states have call successors, (0), 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 97 [2022-01-18 10:46:41,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 10:46:41,754 INFO L225 Difference]: With dead ends: 34921 [2022-01-18 10:46:41,755 INFO L226 Difference]: Without dead ends: 34408 [2022-01-18 10:46:41,755 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2022-01-18 10:46:41,757 INFO L933 BasicCegarLoop]: 112 mSDtfsCounter, 86 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 324 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 10:46:41,759 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [86 Valid, 324 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 10:46:41,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34408 states. [2022-01-18 10:46:42,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34408 to 33409. [2022-01-18 10:46:42,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33409 states, 33408 states have (on average 4.469438457854406) internal successors, (149315), 33408 states have internal predecessors, (149315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:46:42,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33409 states to 33409 states and 149315 transitions. [2022-01-18 10:46:42,851 INFO L78 Accepts]: Start accepts. Automaton has 33409 states and 149315 transitions. Word has length 97 [2022-01-18 10:46:42,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 10:46:42,852 INFO L470 AbstractCegarLoop]: Abstraction has 33409 states and 149315 transitions. [2022-01-18 10:46:42,852 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:46:42,852 INFO L276 IsEmpty]: Start isEmpty. Operand 33409 states and 149315 transitions. [2022-01-18 10:46:42,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-01-18 10:46:42,941 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 10:46:42,941 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 10:46:42,942 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-18 10:46:42,942 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 10:46:42,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 10:46:42,943 INFO L85 PathProgramCache]: Analyzing trace with hash -334142793, now seen corresponding path program 1 times [2022-01-18 10:46:42,943 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 10:46:42,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132239873] [2022-01-18 10:46:42,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 10:46:42,943 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 10:46:42,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 10:46:43,040 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 10:46:43,040 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 10:46:43,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132239873] [2022-01-18 10:46:43,041 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132239873] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 10:46:43,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1519619005] [2022-01-18 10:46:43,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 10:46:43,041 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 10:46:43,041 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 10:46:43,042 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 10:46:43,072 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-01-18 10:46:43,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 10:46:43,149 INFO L263 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 7 conjunts are in the unsatisfiable core [2022-01-18 10:46:43,151 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 10:46:43,733 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 10:46:43,734 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 10:46:43,912 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 10:46:43,912 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1519619005] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 10:46:43,912 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 10:46:43,912 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 10 [2022-01-18 10:46:43,912 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778857710] [2022-01-18 10:46:43,912 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 10:46:43,913 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 10:46:43,914 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 10:46:43,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 10:46:43,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-01-18 10:46:43,914 INFO L87 Difference]: Start difference. First operand 33409 states and 149315 transitions. Second operand has 10 states, 10 states have (on average 12.2) internal successors, (122), 10 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:46:44,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 10:46:44,554 INFO L93 Difference]: Finished difference Result 63556 states and 281343 transitions. [2022-01-18 10:46:44,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-18 10:46:44,554 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.2) internal successors, (122), 10 states have internal predecessors, (122), 0 states have call successors, (0), 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 97 [2022-01-18 10:46:44,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 10:46:44,824 INFO L225 Difference]: With dead ends: 63556 [2022-01-18 10:46:44,824 INFO L226 Difference]: Without dead ends: 63556 [2022-01-18 10:46:44,824 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 188 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2022-01-18 10:46:44,825 INFO L933 BasicCegarLoop]: 150 mSDtfsCounter, 755 mSDsluCounter, 509 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 755 SdHoareTripleChecker+Valid, 607 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 10:46:44,825 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [755 Valid, 607 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 10:46:44,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63556 states. [2022-01-18 10:46:46,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63556 to 38026. [2022-01-18 10:46:46,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38026 states, 38025 states have (on average 4.495095332018409) internal successors, (170926), 38025 states have internal predecessors, (170926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:46:46,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38026 states to 38026 states and 170926 transitions. [2022-01-18 10:46:46,456 INFO L78 Accepts]: Start accepts. Automaton has 38026 states and 170926 transitions. Word has length 97 [2022-01-18 10:46:46,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 10:46:46,456 INFO L470 AbstractCegarLoop]: Abstraction has 38026 states and 170926 transitions. [2022-01-18 10:46:46,456 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.2) internal successors, (122), 10 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:46:46,456 INFO L276 IsEmpty]: Start isEmpty. Operand 38026 states and 170926 transitions. [2022-01-18 10:46:46,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-01-18 10:46:46,543 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 10:46:46,543 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 10:46:46,559 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-01-18 10:46:46,752 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-01-18 10:46:46,753 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 10:46:46,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 10:46:46,753 INFO L85 PathProgramCache]: Analyzing trace with hash 388933738, now seen corresponding path program 2 times [2022-01-18 10:46:46,754 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 10:46:46,754 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853880261] [2022-01-18 10:46:46,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 10:46:46,754 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 10:46:46,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 10:46:46,941 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 10:46:46,942 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 10:46:46,942 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853880261] [2022-01-18 10:46:46,942 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853880261] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 10:46:46,942 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 10:46:46,942 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 10:46:46,942 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942325863] [2022-01-18 10:46:46,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 10:46:46,942 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 10:46:46,942 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 10:46:46,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 10:46:46,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-18 10:46:46,943 INFO L87 Difference]: Start difference. First operand 38026 states and 170926 transitions. Second operand has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:46:47,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 10:46:47,461 INFO L93 Difference]: Finished difference Result 63142 states and 279569 transitions. [2022-01-18 10:46:47,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-18 10:46:47,461 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 0 states have call successors, (0), 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 97 [2022-01-18 10:46:47,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 10:46:48,228 INFO L225 Difference]: With dead ends: 63142 [2022-01-18 10:46:48,228 INFO L226 Difference]: Without dead ends: 63142 [2022-01-18 10:46:48,228 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-01-18 10:46:48,228 INFO L933 BasicCegarLoop]: 142 mSDtfsCounter, 301 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 301 SdHoareTripleChecker+Valid, 448 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 10:46:48,229 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [301 Valid, 448 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 10:46:48,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63142 states. [2022-01-18 10:46:49,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63142 to 41404. [2022-01-18 10:46:49,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41404 states, 41403 states have (on average 4.497814168055455) internal successors, (186223), 41403 states have internal predecessors, (186223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:46:49,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41404 states to 41404 states and 186223 transitions. [2022-01-18 10:46:49,876 INFO L78 Accepts]: Start accepts. Automaton has 41404 states and 186223 transitions. Word has length 97 [2022-01-18 10:46:49,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 10:46:49,876 INFO L470 AbstractCegarLoop]: Abstraction has 41404 states and 186223 transitions. [2022-01-18 10:46:49,876 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 10:46:49,876 INFO L276 IsEmpty]: Start isEmpty. Operand 41404 states and 186223 transitions. [2022-01-18 10:46:49,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-01-18 10:46:49,970 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 10:46:49,970 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 10:46:49,970 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-18 10:46:49,970 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 10:46:49,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 10:46:49,976 INFO L85 PathProgramCache]: Analyzing trace with hash 796018631, now seen corresponding path program 1 times [2022-01-18 10:46:49,976 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 10:46:49,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229999466] [2022-01-18 10:46:49,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 10:46:49,982 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 10:46:50,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 10:47:21,538 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 10:47:21,538 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 10:47:21,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229999466] [2022-01-18 10:47:21,539 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229999466] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 10:47:21,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1252112238] [2022-01-18 10:47:21,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 10:47:21,539 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 10:47:21,539 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 10:47:21,542 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 10:47:21,543 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-01-18 10:57:34,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 10:57:34,023 INFO L263 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 32 conjunts are in the unsatisfiable core [2022-01-18 10:57:34,026 INFO L286 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2022-01-18 11:01:01,247 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-01-18 11:01:01,267 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-01-18 11:01:02,289 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 [2022-01-18 11:01:02,292 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-01-18 11:01:02,302 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2022-01-18 11:01:02,302 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-18 11:01:02,303 WARN L594 AbstractCegarLoop]: Verification canceled: while BasicCegarLoop was analyzing trace of length 103 with TraceHistMax 1,while TraceCheckSpWp was constructing forward predicates,while executing Executor. [2022-01-18 11:01:02,308 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (3 of 5 remaining) [2022-01-18 11:01:02,326 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (2 of 5 remaining) [2022-01-18 11:01:02,326 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (1 of 5 remaining) [2022-01-18 11:01:02,326 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3INUSE_VIOLATION (0 of 5 remaining) [2022-01-18 11:01:02,329 INFO L732 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1, 1] [2022-01-18 11:01:02,331 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-18 11:01:02,331 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-18 11:01:02,333 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.01 11:01:02 BasicIcfg [2022-01-18 11:01:02,333 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-18 11:01:02,333 INFO L158 Benchmark]: Toolchain (without parser) took 876860.88ms. Allocated memory was 377.5MB in the beginning and 13.0GB in the end (delta: 12.6GB). Free memory was 322.4MB in the beginning and 7.2GB in the end (delta: -6.9GB). Peak memory consumption was 10.2GB. Max. memory is 16.0GB. [2022-01-18 11:01:02,333 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 377.5MB. Free memory was 339.7MB in the beginning and 339.5MB in the end (delta: 131.9kB). There was no memory consumed. Max. memory is 16.0GB. [2022-01-18 11:01:02,334 INFO L158 Benchmark]: CACSL2BoogieTranslator took 227.52ms. Allocated memory is still 377.5MB. Free memory was 322.3MB in the beginning and 348.1MB in the end (delta: -25.8MB). Peak memory consumption was 10.9MB. Max. memory is 16.0GB. [2022-01-18 11:01:02,334 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.04ms. Allocated memory is still 377.5MB. Free memory was 348.1MB in the beginning and 346.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-18 11:01:02,334 INFO L158 Benchmark]: Boogie Preprocessor took 14.32ms. Allocated memory is still 377.5MB. Free memory was 346.0MB in the beginning and 344.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-18 11:01:02,334 INFO L158 Benchmark]: RCFGBuilder took 310.33ms. Allocated memory is still 377.5MB. Free memory was 344.9MB in the beginning and 330.2MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. [2022-01-18 11:01:02,335 INFO L158 Benchmark]: TraceAbstraction took 876268.83ms. Allocated memory was 377.5MB in the beginning and 13.0GB in the end (delta: 12.6GB). Free memory was 329.2MB in the beginning and 7.2GB in the end (delta: -6.9GB). Peak memory consumption was 10.2GB. Max. memory is 16.0GB. [2022-01-18 11:01:02,336 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 377.5MB. Free memory was 339.7MB in the beginning and 339.5MB in the end (delta: 131.9kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 227.52ms. Allocated memory is still 377.5MB. Free memory was 322.3MB in the beginning and 348.1MB in the end (delta: -25.8MB). Peak memory consumption was 10.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 36.04ms. Allocated memory is still 377.5MB. Free memory was 348.1MB in the beginning and 346.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 14.32ms. Allocated memory is still 377.5MB. Free memory was 346.0MB in the beginning and 344.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 310.33ms. Allocated memory is still 377.5MB. Free memory was 344.9MB in the beginning and 330.2MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. * TraceAbstraction took 876268.83ms. Allocated memory was 377.5MB in the beginning and 13.0GB in the end (delta: 12.6GB). Free memory was 329.2MB in the beginning and 7.2GB in the end (delta: -6.9GB). Peak memory consumption was 10.2GB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 104]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was analyzing trace of length 103 with TraceHistMax 1,while TraceCheckSpWp was constructing forward predicates,while executing Executor. - TimeoutResultAtElement [Line: 97]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was analyzing trace of length 103 with TraceHistMax 1,while TraceCheckSpWp was constructing forward predicates,while executing Executor. - TimeoutResultAtElement [Line: 96]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was analyzing trace of length 103 with TraceHistMax 1,while TraceCheckSpWp was constructing forward predicates,while executing Executor. - TimeoutResultAtElement [Line: 94]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was analyzing trace of length 103 with TraceHistMax 1,while TraceCheckSpWp was constructing forward predicates,while executing Executor. - TimeoutResultAtElement [Line: 95]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was analyzing trace of length 103 with TraceHistMax 1,while TraceCheckSpWp was constructing forward predicates,while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 164 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 876.2s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 1.1s, AutomataDifference: 7.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.7s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2419 SdHoareTripleChecker+Valid, 1.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2419 mSDsluCounter, 3955 SdHoareTripleChecker+Invalid, 1.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3203 mSDsCounter, 61 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1645 IncrementalHoareTripleChecker+Invalid, 1706 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 61 mSolverCounterUnsat, 1063 mSDtfsCounter, 1645 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 462 GetRequests, 388 SyntacticMatches, 3 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=41404occurred in iteration=9, InterpolantAutomatonStates: 68, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 10.6s AutomataMinimizationTime, 9 MinimizatonAttempts, 75786 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.0s InterpolantComputationTime, 1057 NumberOfCodeBlocks, 1057 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 1238 ConstructedInterpolants, 0 QuantifiedInterpolants, 11740 SizeOfPredicates, 20 NumberOfNonLiveVariables, 514 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 13 InterpolantComputations, 7 PerfectInterpolantSequences, 5/11 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 could not prove your program: Timeout Completed graceful shutdown