/usr/bin/java -Xmx8000000000 -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.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/chl-sre-subst.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.abstract-por-f0ea240 [2022-02-10 22:25:17,684 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-10 22:25:17,685 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-10 22:25:17,743 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-10 22:25:17,744 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-10 22:25:17,747 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-10 22:25:17,748 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-10 22:25:17,754 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-10 22:25:17,755 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-10 22:25:17,755 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-10 22:25:17,756 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-10 22:25:17,757 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-10 22:25:17,757 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-10 22:25:17,757 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-10 22:25:17,758 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-10 22:25:17,759 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-10 22:25:17,759 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-10 22:25:17,760 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-10 22:25:17,761 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-10 22:25:17,762 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-10 22:25:17,762 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-10 22:25:17,768 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-10 22:25:17,771 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-10 22:25:17,772 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-10 22:25:17,778 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-10 22:25:17,784 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-10 22:25:17,785 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-10 22:25:17,785 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-10 22:25:17,786 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2022-02-10 22:25:17,817 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-10 22:25:17,817 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-10 22:25:17,817 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-10 22:25:17,818 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-10 22:25:17,818 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-10 22:25:17,818 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-10 22:25:17,819 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-10 22:25:17,819 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-10 22:25:17,819 INFO L138 SettingsManager]: * Use SBE=true [2022-02-10 22:25:17,819 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-10 22:25:17,820 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-10 22:25:17,820 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-10 22:25:17,820 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-10 22:25:17,820 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-10 22:25:17,820 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-10 22:25:17,820 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-10 22:25:17,820 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-10 22:25:17,820 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-10 22:25:17,820 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-10 22:25:17,820 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-10 22:25:17,820 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-10 22:25:17,821 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-10 22:25:17,821 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-10 22:25:17,821 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-10 22:25:17,821 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-10 22:25:17,821 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-10 22:25:17,821 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-10 22:25:17,821 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-10 22:25:17,821 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-10 22:25:17,821 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-10 22:25:17,821 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-10 22:25:17,821 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-10 22:25:17,822 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-10 22:25:17,822 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-10 22:25:17,995 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-10 22:25:18,026 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-10 22:25:18,028 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-10 22:25:18,029 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-10 22:25:18,029 INFO L275 PluginConnector]: CDTParser initialized [2022-02-10 22:25:18,030 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-sre-subst.wvr.c [2022-02-10 22:25:18,072 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/804e28c9a/1e60bf04055e4c9f8203f94917f2727a/FLAG1d0462a1d [2022-02-10 22:25:18,390 INFO L306 CDTParser]: Found 1 translation units. [2022-02-10 22:25:18,390 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-sre-subst.wvr.c [2022-02-10 22:25:18,394 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/804e28c9a/1e60bf04055e4c9f8203f94917f2727a/FLAG1d0462a1d [2022-02-10 22:25:18,823 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/804e28c9a/1e60bf04055e4c9f8203f94917f2727a [2022-02-10 22:25:18,825 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-10 22:25:18,826 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-10 22:25:18,828 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-10 22:25:18,828 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-10 22:25:18,830 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-10 22:25:18,831 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.02 10:25:18" (1/1) ... [2022-02-10 22:25:18,832 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29ff21dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:25:18, skipping insertion in model container [2022-02-10 22:25:18,832 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.02 10:25:18" (1/1) ... [2022-02-10 22:25:18,836 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-10 22:25:18,847 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-10 22:25:18,983 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/chl-sre-subst.wvr.c[2333,2346] [2022-02-10 22:25:18,985 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-10 22:25:18,990 INFO L203 MainTranslator]: Completed pre-run [2022-02-10 22:25:19,003 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/chl-sre-subst.wvr.c[2333,2346] [2022-02-10 22:25:19,004 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-10 22:25:19,013 INFO L208 MainTranslator]: Completed translation [2022-02-10 22:25:19,013 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:25:19 WrapperNode [2022-02-10 22:25:19,014 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-10 22:25:19,014 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-10 22:25:19,014 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-10 22:25:19,015 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-10 22:25:19,020 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:25:19" (1/1) ... [2022-02-10 22:25:19,033 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:25:19" (1/1) ... [2022-02-10 22:25:19,045 INFO L137 Inliner]: procedures = 22, calls = 26, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 74 [2022-02-10 22:25:19,045 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-10 22:25:19,046 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-10 22:25:19,046 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-10 22:25:19,046 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-10 22:25:19,053 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:25:19" (1/1) ... [2022-02-10 22:25:19,053 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:25:19" (1/1) ... [2022-02-10 22:25:19,055 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:25:19" (1/1) ... [2022-02-10 22:25:19,055 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:25:19" (1/1) ... [2022-02-10 22:25:19,058 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:25:19" (1/1) ... [2022-02-10 22:25:19,060 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:25:19" (1/1) ... [2022-02-10 22:25:19,061 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:25:19" (1/1) ... [2022-02-10 22:25:19,062 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-10 22:25:19,063 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-10 22:25:19,063 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-10 22:25:19,063 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-10 22:25:19,064 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:25:19" (1/1) ... [2022-02-10 22:25:19,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-10 22:25:19,081 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:25:19,091 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) [2022-02-10 22:25:19,099 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 [2022-02-10 22:25:19,118 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-10 22:25:19,118 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-02-10 22:25:19,118 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-02-10 22:25:19,119 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-02-10 22:25:19,119 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-02-10 22:25:19,119 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-02-10 22:25:19,119 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-02-10 22:25:19,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-10 22:25:19,120 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-10 22:25:19,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-10 22:25:19,121 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-10 22:25:19,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-10 22:25:19,124 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-10 22:25:19,124 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-10 22:25:19,125 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-10 22:25:19,178 INFO L234 CfgBuilder]: Building ICFG [2022-02-10 22:25:19,179 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-10 22:25:19,415 INFO L275 CfgBuilder]: Performing block encoding [2022-02-10 22:25:19,420 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-10 22:25:19,421 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-10 22:25:19,422 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.02 10:25:19 BoogieIcfgContainer [2022-02-10 22:25:19,422 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-10 22:25:19,423 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-10 22:25:19,423 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-10 22:25:19,431 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-10 22:25:19,431 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.02 10:25:18" (1/3) ... [2022-02-10 22:25:19,432 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@289f5e1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.02 10:25:19, skipping insertion in model container [2022-02-10 22:25:19,432 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:25:19" (2/3) ... [2022-02-10 22:25:19,432 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@289f5e1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.02 10:25:19, skipping insertion in model container [2022-02-10 22:25:19,432 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.02 10:25:19" (3/3) ... [2022-02-10 22:25:19,433 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-sre-subst.wvr.c [2022-02-10 22:25:19,437 WARN L154 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-10 22:25:19,438 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-10 22:25:19,438 INFO L168 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-10 22:25:19,438 INFO L538 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-10 22:25:19,494 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork2_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:25:19,494 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork2_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:25:19,496 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork2_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:25:19,496 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork2_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:25:19,496 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork2_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:25:19,497 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork2_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:25:19,497 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork2_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:25:19,497 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork2_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:25:19,497 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork2_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:25:19,497 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork2_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:25:19,497 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork2_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:25:19,498 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork2_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:25:19,498 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork2_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:25:19,498 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork2_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:25:19,498 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork2_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:25:19,498 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork2_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:25:19,498 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:25:19,499 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:25:19,499 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:25:19,499 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:25:19,500 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:25:19,501 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:25:19,504 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:25:19,504 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:25:19,504 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:25:19,504 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:25:19,504 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:25:19,505 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:25:19,505 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:25:19,505 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:25:19,505 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:25:19,506 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:25:19,506 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:25:19,506 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:25:19,506 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:25:19,506 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:25:19,506 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:25:19,506 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:25:19,506 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:25:19,507 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:25:19,508 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:25:19,508 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:25:19,509 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:25:19,509 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:25:19,509 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:25:19,509 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:25:19,509 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:25:19,509 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:25:19,509 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:25:19,509 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:25:19,510 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:25:19,510 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:25:19,510 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:25:19,510 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:25:19,510 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:25:19,511 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:25:19,511 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:25:19,512 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:25:19,512 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:25:19,512 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:25:19,517 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:25:19,518 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:25:19,518 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:25:19,518 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:25:19,521 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:25:19,521 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:25:19,521 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:25:19,521 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:25:19,523 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:25:19,523 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork2_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:25:19,524 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:25:19,524 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork2_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:25:19,531 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-02-10 22:25:19,577 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-10 22:25:19,590 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 [2022-02-10 22:25:19,591 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-02-10 22:25:19,605 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 126 places, 124 transitions, 272 flow [2022-02-10 22:25:19,908 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 8364 states, 8363 states have (on average 3.829606600502212) internal successors, (32027), 8363 states have internal predecessors, (32027), 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) [2022-02-10 22:25:19,947 INFO L276 IsEmpty]: Start isEmpty. Operand has 8364 states, 8363 states have (on average 3.829606600502212) internal successors, (32027), 8363 states have internal predecessors, (32027), 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) [2022-02-10 22:25:20,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-02-10 22:25:20,002 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:20,003 INFO L515 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] [2022-02-10 22:25:20,004 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:25:20,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:20,008 INFO L85 PathProgramCache]: Analyzing trace with hash 493362174, now seen corresponding path program 1 times [2022-02-10 22:25:20,015 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:20,015 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451999700] [2022-02-10 22:25:20,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:20,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:20,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:20,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:20,416 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:20,416 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451999700] [2022-02-10 22:25:20,417 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451999700] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:20,417 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:20,417 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-02-10 22:25:20,418 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173208629] [2022-02-10 22:25:20,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:20,422 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-02-10 22:25:20,422 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:20,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-02-10 22:25:20,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-02-10 22:25:20,468 INFO L87 Difference]: Start difference. First operand has 8364 states, 8363 states have (on average 3.829606600502212) internal successors, (32027), 8363 states have internal predecessors, (32027), 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 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 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) [2022-02-10 22:25:20,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:20,890 INFO L93 Difference]: Finished difference Result 16531 states and 61711 transitions. [2022-02-10 22:25:20,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-02-10 22:25:20,892 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 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 88 [2022-02-10 22:25:20,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:21,079 INFO L225 Difference]: With dead ends: 16531 [2022-02-10 22:25:21,080 INFO L226 Difference]: Without dead ends: 13993 [2022-02-10 22:25:21,081 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=177, Unknown=0, NotChecked=0, Total=240 [2022-02-10 22:25:21,083 INFO L934 BasicCegarLoop]: 182 mSDtfsCounter, 293 mSDsluCounter, 787 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 293 SdHoareTripleChecker+Valid, 926 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:21,084 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [293 Valid, 926 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:25:21,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13993 states. [2022-02-10 22:25:21,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13993 to 9358. [2022-02-10 22:25:21,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9358 states, 9357 states have (on average 3.7627444693812118) internal successors, (35208), 9357 states have internal predecessors, (35208), 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) [2022-02-10 22:25:21,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9358 states to 9358 states and 35208 transitions. [2022-02-10 22:25:21,570 INFO L78 Accepts]: Start accepts. Automaton has 9358 states and 35208 transitions. Word has length 88 [2022-02-10 22:25:21,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:21,571 INFO L470 AbstractCegarLoop]: Abstraction has 9358 states and 35208 transitions. [2022-02-10 22:25:21,571 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 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) [2022-02-10 22:25:21,571 INFO L276 IsEmpty]: Start isEmpty. Operand 9358 states and 35208 transitions. [2022-02-10 22:25:21,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-02-10 22:25:21,709 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:21,709 INFO L515 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] [2022-02-10 22:25:21,709 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-10 22:25:21,709 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:25:21,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:21,710 INFO L85 PathProgramCache]: Analyzing trace with hash 765825185, now seen corresponding path program 1 times [2022-02-10 22:25:21,710 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:21,710 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007733938] [2022-02-10 22:25:21,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:21,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:21,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:21,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:21,906 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:21,906 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007733938] [2022-02-10 22:25:21,906 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2007733938] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:21,906 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:21,906 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-10 22:25:21,906 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829491193] [2022-02-10 22:25:21,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:21,907 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-10 22:25:21,908 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:21,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-10 22:25:21,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-02-10 22:25:21,908 INFO L87 Difference]: Start difference. First operand 9358 states and 35208 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-10 22:25:22,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:22,332 INFO L93 Difference]: Finished difference Result 31955 states and 114739 transitions. [2022-02-10 22:25:22,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-10 22:25:22,333 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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 90 [2022-02-10 22:25:22,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:22,544 INFO L225 Difference]: With dead ends: 31955 [2022-02-10 22:25:22,544 INFO L226 Difference]: Without dead ends: 31955 [2022-02-10 22:25:22,545 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-02-10 22:25:22,545 INFO L934 BasicCegarLoop]: 225 mSDtfsCounter, 324 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 324 SdHoareTripleChecker+Valid, 540 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:22,546 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [324 Valid, 540 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:25:22,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31955 states. [2022-02-10 22:25:23,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31955 to 12646. [2022-02-10 22:25:23,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12646 states, 12645 states have (on average 3.7319098457888495) internal successors, (47190), 12645 states have internal predecessors, (47190), 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) [2022-02-10 22:25:23,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12646 states to 12646 states and 47190 transitions. [2022-02-10 22:25:23,374 INFO L78 Accepts]: Start accepts. Automaton has 12646 states and 47190 transitions. Word has length 90 [2022-02-10 22:25:23,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:23,375 INFO L470 AbstractCegarLoop]: Abstraction has 12646 states and 47190 transitions. [2022-02-10 22:25:23,375 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-10 22:25:23,375 INFO L276 IsEmpty]: Start isEmpty. Operand 12646 states and 47190 transitions. [2022-02-10 22:25:23,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-02-10 22:25:23,410 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:23,410 INFO L515 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] [2022-02-10 22:25:23,411 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-10 22:25:23,411 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:25:23,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:23,411 INFO L85 PathProgramCache]: Analyzing trace with hash -27466623, now seen corresponding path program 1 times [2022-02-10 22:25:23,412 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:23,412 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917522500] [2022-02-10 22:25:23,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:23,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:23,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:23,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:23,541 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:23,541 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917522500] [2022-02-10 22:25:23,541 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917522500] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:23,541 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:23,541 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-10 22:25:23,542 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861200897] [2022-02-10 22:25:23,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:23,542 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-10 22:25:23,542 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:23,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-10 22:25:23,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-02-10 22:25:23,543 INFO L87 Difference]: Start difference. First operand 12646 states and 47190 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-10 22:25:24,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:24,106 INFO L93 Difference]: Finished difference Result 33248 states and 118893 transitions. [2022-02-10 22:25:24,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-10 22:25:24,106 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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 90 [2022-02-10 22:25:24,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:24,253 INFO L225 Difference]: With dead ends: 33248 [2022-02-10 22:25:24,254 INFO L226 Difference]: Without dead ends: 31982 [2022-02-10 22:25:24,254 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-02-10 22:25:24,255 INFO L934 BasicCegarLoop]: 188 mSDtfsCounter, 332 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 332 SdHoareTripleChecker+Valid, 503 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:24,255 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [332 Valid, 503 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:25:24,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31982 states. [2022-02-10 22:25:24,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31982 to 14810. [2022-02-10 22:25:24,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14810 states, 14809 states have (on average 3.6470389627928963) internal successors, (54009), 14809 states have internal predecessors, (54009), 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) [2022-02-10 22:25:24,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14810 states to 14810 states and 54009 transitions. [2022-02-10 22:25:24,991 INFO L78 Accepts]: Start accepts. Automaton has 14810 states and 54009 transitions. Word has length 90 [2022-02-10 22:25:24,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:24,991 INFO L470 AbstractCegarLoop]: Abstraction has 14810 states and 54009 transitions. [2022-02-10 22:25:24,992 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-10 22:25:24,992 INFO L276 IsEmpty]: Start isEmpty. Operand 14810 states and 54009 transitions. [2022-02-10 22:25:25,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-02-10 22:25:25,032 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:25,032 INFO L515 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] [2022-02-10 22:25:25,032 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-10 22:25:25,033 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:25:25,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:25,033 INFO L85 PathProgramCache]: Analyzing trace with hash -1957621631, now seen corresponding path program 1 times [2022-02-10 22:25:25,033 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:25,033 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135059505] [2022-02-10 22:25:25,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:25,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:25,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:25,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:25,187 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:25,187 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135059505] [2022-02-10 22:25:25,188 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135059505] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:25,188 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:25,188 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-10 22:25:25,188 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587096000] [2022-02-10 22:25:25,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:25,188 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-10 22:25:25,188 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:25,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-10 22:25:25,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-02-10 22:25:25,189 INFO L87 Difference]: Start difference. First operand 14810 states and 54009 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-10 22:25:25,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:25,606 INFO L93 Difference]: Finished difference Result 36126 states and 126494 transitions. [2022-02-10 22:25:25,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-10 22:25:25,607 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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 90 [2022-02-10 22:25:25,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:25,731 INFO L225 Difference]: With dead ends: 36126 [2022-02-10 22:25:25,732 INFO L226 Difference]: Without dead ends: 36126 [2022-02-10 22:25:25,732 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-02-10 22:25:25,733 INFO L934 BasicCegarLoop]: 236 mSDtfsCounter, 258 mSDsluCounter, 465 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 258 SdHoareTripleChecker+Valid, 667 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:25,733 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [258 Valid, 667 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:25:25,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36126 states. [2022-02-10 22:25:26,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36126 to 16046. [2022-02-10 22:25:26,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16046 states, 16045 states have (on average 3.647055157369897) internal successors, (58517), 16045 states have internal predecessors, (58517), 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) [2022-02-10 22:25:26,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16046 states to 16046 states and 58517 transitions. [2022-02-10 22:25:26,626 INFO L78 Accepts]: Start accepts. Automaton has 16046 states and 58517 transitions. Word has length 90 [2022-02-10 22:25:26,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:26,626 INFO L470 AbstractCegarLoop]: Abstraction has 16046 states and 58517 transitions. [2022-02-10 22:25:26,626 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-10 22:25:26,627 INFO L276 IsEmpty]: Start isEmpty. Operand 16046 states and 58517 transitions. [2022-02-10 22:25:26,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-02-10 22:25:26,668 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:26,669 INFO L515 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] [2022-02-10 22:25:26,669 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-10 22:25:26,669 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:25:26,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:26,669 INFO L85 PathProgramCache]: Analyzing trace with hash -388088735, now seen corresponding path program 1 times [2022-02-10 22:25:26,670 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:26,670 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236306409] [2022-02-10 22:25:26,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:26,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:26,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:26,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:26,751 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:26,751 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236306409] [2022-02-10 22:25:26,751 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1236306409] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:26,751 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:26,751 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-10 22:25:26,751 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969216520] [2022-02-10 22:25:26,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:26,752 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-10 22:25:26,752 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:26,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-10 22:25:26,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-02-10 22:25:26,752 INFO L87 Difference]: Start difference. First operand 16046 states and 58517 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-10 22:25:27,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:27,087 INFO L93 Difference]: Finished difference Result 27752 states and 97860 transitions. [2022-02-10 22:25:27,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-10 22:25:27,088 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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 90 [2022-02-10 22:25:27,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:27,227 INFO L225 Difference]: With dead ends: 27752 [2022-02-10 22:25:27,228 INFO L226 Difference]: Without dead ends: 27752 [2022-02-10 22:25:27,228 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-02-10 22:25:27,234 INFO L934 BasicCegarLoop]: 204 mSDtfsCounter, 187 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:27,235 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [187 Valid, 390 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:25:27,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27752 states. [2022-02-10 22:25:27,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27752 to 16772. [2022-02-10 22:25:27,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16772 states, 16771 states have (on average 3.635621012461988) internal successors, (60973), 16771 states have internal predecessors, (60973), 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) [2022-02-10 22:25:27,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16772 states to 16772 states and 60973 transitions. [2022-02-10 22:25:27,767 INFO L78 Accepts]: Start accepts. Automaton has 16772 states and 60973 transitions. Word has length 90 [2022-02-10 22:25:27,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:27,767 INFO L470 AbstractCegarLoop]: Abstraction has 16772 states and 60973 transitions. [2022-02-10 22:25:27,767 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-10 22:25:27,767 INFO L276 IsEmpty]: Start isEmpty. Operand 16772 states and 60973 transitions. [2022-02-10 22:25:27,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-02-10 22:25:27,803 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:27,803 INFO L515 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] [2022-02-10 22:25:27,803 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-10 22:25:27,803 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:25:27,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:27,804 INFO L85 PathProgramCache]: Analyzing trace with hash 317326091, now seen corresponding path program 2 times [2022-02-10 22:25:27,804 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:27,804 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986000901] [2022-02-10 22:25:27,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:27,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:27,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:27,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:27,914 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:27,914 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986000901] [2022-02-10 22:25:27,915 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986000901] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:27,915 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:27,915 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-10 22:25:27,915 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974355288] [2022-02-10 22:25:27,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:27,915 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-10 22:25:27,916 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:27,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-10 22:25:27,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-02-10 22:25:27,916 INFO L87 Difference]: Start difference. First operand 16772 states and 60973 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-10 22:25:28,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:28,402 INFO L93 Difference]: Finished difference Result 36561 states and 127045 transitions. [2022-02-10 22:25:28,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-10 22:25:28,402 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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 90 [2022-02-10 22:25:28,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:28,519 INFO L225 Difference]: With dead ends: 36561 [2022-02-10 22:25:28,519 INFO L226 Difference]: Without dead ends: 36243 [2022-02-10 22:25:28,519 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-02-10 22:25:28,520 INFO L934 BasicCegarLoop]: 229 mSDtfsCounter, 347 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:28,520 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [347 Valid, 545 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:25:28,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36243 states. [2022-02-10 22:25:29,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36243 to 16516. [2022-02-10 22:25:29,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16516 states, 16515 states have (on average 3.6263396911898274) internal successors, (59889), 16515 states have internal predecessors, (59889), 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) [2022-02-10 22:25:29,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16516 states to 16516 states and 59889 transitions. [2022-02-10 22:25:29,215 INFO L78 Accepts]: Start accepts. Automaton has 16516 states and 59889 transitions. Word has length 90 [2022-02-10 22:25:29,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:29,216 INFO L470 AbstractCegarLoop]: Abstraction has 16516 states and 59889 transitions. [2022-02-10 22:25:29,216 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-10 22:25:29,216 INFO L276 IsEmpty]: Start isEmpty. Operand 16516 states and 59889 transitions. [2022-02-10 22:25:29,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-02-10 22:25:29,252 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:29,252 INFO L515 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] [2022-02-10 22:25:29,252 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-02-10 22:25:29,252 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:25:29,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:29,253 INFO L85 PathProgramCache]: Analyzing trace with hash 73905673, now seen corresponding path program 2 times [2022-02-10 22:25:29,253 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:29,253 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986170165] [2022-02-10 22:25:29,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:29,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:29,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:29,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:29,458 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:29,458 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986170165] [2022-02-10 22:25:29,458 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986170165] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:29,458 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:29,458 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-10 22:25:29,458 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224186362] [2022-02-10 22:25:29,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:29,459 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-10 22:25:29,459 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:29,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-10 22:25:29,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-02-10 22:25:29,459 INFO L87 Difference]: Start difference. First operand 16516 states and 59889 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-10 22:25:29,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:29,670 INFO L93 Difference]: Finished difference Result 27553 states and 95740 transitions. [2022-02-10 22:25:29,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-10 22:25:29,671 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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 90 [2022-02-10 22:25:29,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:29,746 INFO L225 Difference]: With dead ends: 27553 [2022-02-10 22:25:29,746 INFO L226 Difference]: Without dead ends: 27053 [2022-02-10 22:25:29,746 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-02-10 22:25:29,747 INFO L934 BasicCegarLoop]: 200 mSDtfsCounter, 195 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 424 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:29,747 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [195 Valid, 424 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:25:29,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27053 states. [2022-02-10 22:25:30,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27053 to 15908. [2022-02-10 22:25:30,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15908 states, 15907 states have (on average 3.6090400452630917) internal successors, (57409), 15907 states have internal predecessors, (57409), 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) [2022-02-10 22:25:30,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15908 states to 15908 states and 57409 transitions. [2022-02-10 22:25:30,320 INFO L78 Accepts]: Start accepts. Automaton has 15908 states and 57409 transitions. Word has length 90 [2022-02-10 22:25:30,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:30,320 INFO L470 AbstractCegarLoop]: Abstraction has 15908 states and 57409 transitions. [2022-02-10 22:25:30,321 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-10 22:25:30,321 INFO L276 IsEmpty]: Start isEmpty. Operand 15908 states and 57409 transitions. [2022-02-10 22:25:30,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-02-10 22:25:30,353 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:30,353 INFO L515 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] [2022-02-10 22:25:30,353 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-02-10 22:25:30,354 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:25:30,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:30,354 INFO L85 PathProgramCache]: Analyzing trace with hash -531454605, now seen corresponding path program 3 times [2022-02-10 22:25:30,354 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:30,354 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130108060] [2022-02-10 22:25:30,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:30,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:30,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:30,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:30,413 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:30,413 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130108060] [2022-02-10 22:25:30,413 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130108060] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:30,414 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:30,414 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-10 22:25:30,414 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180520716] [2022-02-10 22:25:30,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:30,414 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-10 22:25:30,414 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:30,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-10 22:25:30,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-02-10 22:25:30,415 INFO L87 Difference]: Start difference. First operand 15908 states and 57409 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-10 22:25:30,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:30,730 INFO L93 Difference]: Finished difference Result 29208 states and 101977 transitions. [2022-02-10 22:25:30,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-10 22:25:30,736 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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 90 [2022-02-10 22:25:30,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:30,833 INFO L225 Difference]: With dead ends: 29208 [2022-02-10 22:25:30,834 INFO L226 Difference]: Without dead ends: 28589 [2022-02-10 22:25:30,834 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-02-10 22:25:30,835 INFO L934 BasicCegarLoop]: 193 mSDtfsCounter, 206 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:30,835 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [206 Valid, 408 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:25:30,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28589 states. [2022-02-10 22:25:31,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28589 to 16259. [2022-02-10 22:25:31,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16259 states, 16258 states have (on average 3.605055972444335) internal successors, (58611), 16258 states have internal predecessors, (58611), 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) [2022-02-10 22:25:31,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16259 states to 16259 states and 58611 transitions. [2022-02-10 22:25:31,414 INFO L78 Accepts]: Start accepts. Automaton has 16259 states and 58611 transitions. Word has length 90 [2022-02-10 22:25:31,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:31,415 INFO L470 AbstractCegarLoop]: Abstraction has 16259 states and 58611 transitions. [2022-02-10 22:25:31,415 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-10 22:25:31,415 INFO L276 IsEmpty]: Start isEmpty. Operand 16259 states and 58611 transitions. [2022-02-10 22:25:31,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-02-10 22:25:31,447 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:31,447 INFO L515 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] [2022-02-10 22:25:31,447 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-02-10 22:25:31,447 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:25:31,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:31,447 INFO L85 PathProgramCache]: Analyzing trace with hash -866251213, now seen corresponding path program 2 times [2022-02-10 22:25:31,447 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:31,448 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134632187] [2022-02-10 22:25:31,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:31,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:31,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:31,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:31,502 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:31,502 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134632187] [2022-02-10 22:25:31,502 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134632187] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:31,502 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:31,502 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-10 22:25:31,502 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027475959] [2022-02-10 22:25:31,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:31,502 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-10 22:25:31,503 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:31,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-10 22:25:31,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-02-10 22:25:31,503 INFO L87 Difference]: Start difference. First operand 16259 states and 58611 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-10 22:25:31,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:31,757 INFO L93 Difference]: Finished difference Result 30333 states and 106485 transitions. [2022-02-10 22:25:31,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-10 22:25:31,757 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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 90 [2022-02-10 22:25:31,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:32,008 INFO L225 Difference]: With dead ends: 30333 [2022-02-10 22:25:32,009 INFO L226 Difference]: Without dead ends: 30113 [2022-02-10 22:25:32,009 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-02-10 22:25:32,009 INFO L934 BasicCegarLoop]: 236 mSDtfsCounter, 305 mSDsluCounter, 348 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 305 SdHoareTripleChecker+Valid, 559 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:32,010 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [305 Valid, 559 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:25:32,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30113 states. [2022-02-10 22:25:32,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30113 to 16290. [2022-02-10 22:25:32,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16290 states, 16289 states have (on average 3.60685124930935) internal successors, (58752), 16289 states have internal predecessors, (58752), 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) [2022-02-10 22:25:32,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16290 states to 16290 states and 58752 transitions. [2022-02-10 22:25:32,570 INFO L78 Accepts]: Start accepts. Automaton has 16290 states and 58752 transitions. Word has length 90 [2022-02-10 22:25:32,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:32,571 INFO L470 AbstractCegarLoop]: Abstraction has 16290 states and 58752 transitions. [2022-02-10 22:25:32,571 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-10 22:25:32,571 INFO L276 IsEmpty]: Start isEmpty. Operand 16290 states and 58752 transitions. [2022-02-10 22:25:32,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-02-10 22:25:32,604 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:32,604 INFO L515 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] [2022-02-10 22:25:32,605 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-02-10 22:25:32,605 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:25:32,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:32,605 INFO L85 PathProgramCache]: Analyzing trace with hash 477973621, now seen corresponding path program 3 times [2022-02-10 22:25:32,605 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:32,605 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147830596] [2022-02-10 22:25:32,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:32,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:32,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:32,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:32,719 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:32,719 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147830596] [2022-02-10 22:25:32,719 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1147830596] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:32,719 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:32,719 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-10 22:25:32,720 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010206416] [2022-02-10 22:25:32,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:32,720 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-10 22:25:32,720 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:32,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-10 22:25:32,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-02-10 22:25:32,720 INFO L87 Difference]: Start difference. First operand 16290 states and 58752 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-10 22:25:32,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:32,967 INFO L93 Difference]: Finished difference Result 29917 states and 105025 transitions. [2022-02-10 22:25:32,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-10 22:25:32,972 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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 90 [2022-02-10 22:25:32,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:33,068 INFO L225 Difference]: With dead ends: 29917 [2022-02-10 22:25:33,068 INFO L226 Difference]: Without dead ends: 29917 [2022-02-10 22:25:33,069 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-02-10 22:25:33,069 INFO L934 BasicCegarLoop]: 229 mSDtfsCounter, 237 mSDsluCounter, 306 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:33,069 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [237 Valid, 513 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:25:33,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29917 states. [2022-02-10 22:25:33,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29917 to 16352. [2022-02-10 22:25:33,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16352 states, 16351 states have (on average 3.6066295639410435) internal successors, (58972), 16351 states have internal predecessors, (58972), 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) [2022-02-10 22:25:33,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16352 states to 16352 states and 58972 transitions. [2022-02-10 22:25:33,706 INFO L78 Accepts]: Start accepts. Automaton has 16352 states and 58972 transitions. Word has length 90 [2022-02-10 22:25:33,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:33,707 INFO L470 AbstractCegarLoop]: Abstraction has 16352 states and 58972 transitions. [2022-02-10 22:25:33,707 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-10 22:25:33,707 INFO L276 IsEmpty]: Start isEmpty. Operand 16352 states and 58972 transitions. [2022-02-10 22:25:33,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-02-10 22:25:33,743 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:33,744 INFO L515 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] [2022-02-10 22:25:33,744 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-02-10 22:25:33,744 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:25:33,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:33,744 INFO L85 PathProgramCache]: Analyzing trace with hash 602755675, now seen corresponding path program 2 times [2022-02-10 22:25:33,744 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:33,745 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296327340] [2022-02-10 22:25:33,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:33,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:33,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:33,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:33,840 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:33,840 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296327340] [2022-02-10 22:25:33,840 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296327340] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:33,840 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:33,841 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-10 22:25:33,841 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010442734] [2022-02-10 22:25:33,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:33,841 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-10 22:25:33,841 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:33,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-10 22:25:33,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-02-10 22:25:33,842 INFO L87 Difference]: Start difference. First operand 16352 states and 58972 transitions. Second operand has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 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) [2022-02-10 22:25:34,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:34,200 INFO L93 Difference]: Finished difference Result 30388 states and 104553 transitions. [2022-02-10 22:25:34,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-10 22:25:34,200 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 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 90 [2022-02-10 22:25:34,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:34,292 INFO L225 Difference]: With dead ends: 30388 [2022-02-10 22:25:34,292 INFO L226 Difference]: Without dead ends: 28540 [2022-02-10 22:25:34,292 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-02-10 22:25:34,293 INFO L934 BasicCegarLoop]: 150 mSDtfsCounter, 149 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:34,293 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 284 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:25:34,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28540 states. [2022-02-10 22:25:34,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28540 to 15578. [2022-02-10 22:25:34,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15578 states, 15577 states have (on average 3.6106438980548243) internal successors, (56243), 15577 states have internal predecessors, (56243), 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) [2022-02-10 22:25:34,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15578 states to 15578 states and 56243 transitions. [2022-02-10 22:25:34,767 INFO L78 Accepts]: Start accepts. Automaton has 15578 states and 56243 transitions. Word has length 90 [2022-02-10 22:25:34,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:34,768 INFO L470 AbstractCegarLoop]: Abstraction has 15578 states and 56243 transitions. [2022-02-10 22:25:34,768 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 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) [2022-02-10 22:25:34,768 INFO L276 IsEmpty]: Start isEmpty. Operand 15578 states and 56243 transitions. [2022-02-10 22:25:34,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-02-10 22:25:34,801 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:34,801 INFO L515 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] [2022-02-10 22:25:34,801 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-02-10 22:25:34,801 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:25:34,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:34,801 INFO L85 PathProgramCache]: Analyzing trace with hash -1814195023, now seen corresponding path program 3 times [2022-02-10 22:25:34,801 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:34,801 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538945707] [2022-02-10 22:25:34,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:34,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:34,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:34,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:34,892 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:34,892 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538945707] [2022-02-10 22:25:34,892 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [538945707] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:34,892 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:34,892 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-10 22:25:34,892 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144501160] [2022-02-10 22:25:34,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:34,893 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-10 22:25:34,893 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:34,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-10 22:25:34,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-02-10 22:25:34,893 INFO L87 Difference]: Start difference. First operand 15578 states and 56243 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-10 22:25:35,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:35,092 INFO L93 Difference]: Finished difference Result 28014 states and 98125 transitions. [2022-02-10 22:25:35,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-10 22:25:35,092 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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 90 [2022-02-10 22:25:35,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:35,172 INFO L225 Difference]: With dead ends: 28014 [2022-02-10 22:25:35,172 INFO L226 Difference]: Without dead ends: 28014 [2022-02-10 22:25:35,173 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-02-10 22:25:35,173 INFO L934 BasicCegarLoop]: 184 mSDtfsCounter, 152 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 437 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:35,173 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 437 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:25:35,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28014 states. [2022-02-10 22:25:35,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28014 to 15830. [2022-02-10 22:25:35,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15830 states, 15829 states have (on average 3.6123570661444186) internal successors, (57180), 15829 states have internal predecessors, (57180), 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) [2022-02-10 22:25:35,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15830 states to 15830 states and 57180 transitions. [2022-02-10 22:25:35,639 INFO L78 Accepts]: Start accepts. Automaton has 15830 states and 57180 transitions. Word has length 90 [2022-02-10 22:25:35,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:35,639 INFO L470 AbstractCegarLoop]: Abstraction has 15830 states and 57180 transitions. [2022-02-10 22:25:35,639 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-10 22:25:35,639 INFO L276 IsEmpty]: Start isEmpty. Operand 15830 states and 57180 transitions. [2022-02-10 22:25:35,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-02-10 22:25:35,673 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:35,673 INFO L515 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] [2022-02-10 22:25:35,673 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-02-10 22:25:35,673 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:25:35,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:35,674 INFO L85 PathProgramCache]: Analyzing trace with hash 236788975, now seen corresponding path program 4 times [2022-02-10 22:25:35,674 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:35,674 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553117337] [2022-02-10 22:25:35,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:35,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:35,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:35,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:35,760 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:35,761 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553117337] [2022-02-10 22:25:35,761 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553117337] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:35,761 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:35,761 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-10 22:25:35,761 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280211646] [2022-02-10 22:25:35,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:35,761 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-10 22:25:35,761 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:35,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-10 22:25:35,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-02-10 22:25:35,762 INFO L87 Difference]: Start difference. First operand 15830 states and 57180 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-10 22:25:35,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:35,994 INFO L93 Difference]: Finished difference Result 28238 states and 98905 transitions. [2022-02-10 22:25:35,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-10 22:25:35,994 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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 90 [2022-02-10 22:25:35,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:36,093 INFO L225 Difference]: With dead ends: 28238 [2022-02-10 22:25:36,093 INFO L226 Difference]: Without dead ends: 28238 [2022-02-10 22:25:36,094 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-02-10 22:25:36,094 INFO L934 BasicCegarLoop]: 190 mSDtfsCounter, 147 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 443 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:36,095 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [147 Valid, 443 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:25:36,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28238 states. [2022-02-10 22:25:36,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28238 to 16054. [2022-02-10 22:25:36,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16054 states, 16053 states have (on average 3.61054008596524) internal successors, (57960), 16053 states have internal predecessors, (57960), 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) [2022-02-10 22:25:36,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16054 states to 16054 states and 57960 transitions. [2022-02-10 22:25:36,579 INFO L78 Accepts]: Start accepts. Automaton has 16054 states and 57960 transitions. Word has length 90 [2022-02-10 22:25:36,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:36,579 INFO L470 AbstractCegarLoop]: Abstraction has 16054 states and 57960 transitions. [2022-02-10 22:25:36,580 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-10 22:25:36,580 INFO L276 IsEmpty]: Start isEmpty. Operand 16054 states and 57960 transitions. [2022-02-10 22:25:36,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-02-10 22:25:36,612 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:36,612 INFO L515 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] [2022-02-10 22:25:36,612 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-02-10 22:25:36,612 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:25:36,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:36,612 INFO L85 PathProgramCache]: Analyzing trace with hash -668830069, now seen corresponding path program 4 times [2022-02-10 22:25:36,612 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:36,612 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328319870] [2022-02-10 22:25:36,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:36,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:36,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:36,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:36,689 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:36,689 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328319870] [2022-02-10 22:25:36,690 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328319870] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:36,690 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:36,690 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-10 22:25:36,690 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573623156] [2022-02-10 22:25:36,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:36,690 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-10 22:25:36,690 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:36,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-10 22:25:36,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-02-10 22:25:36,690 INFO L87 Difference]: Start difference. First operand 16054 states and 57960 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-10 22:25:36,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:36,967 INFO L93 Difference]: Finished difference Result 33439 states and 116372 transitions. [2022-02-10 22:25:36,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-10 22:25:36,975 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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 90 [2022-02-10 22:25:36,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:37,084 INFO L225 Difference]: With dead ends: 33439 [2022-02-10 22:25:37,084 INFO L226 Difference]: Without dead ends: 33439 [2022-02-10 22:25:37,084 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-02-10 22:25:37,084 INFO L934 BasicCegarLoop]: 197 mSDtfsCounter, 234 mSDsluCounter, 492 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 653 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:37,085 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [234 Valid, 653 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:25:37,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33439 states. [2022-02-10 22:25:37,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33439 to 16054. [2022-02-10 22:25:37,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16054 states, 16053 states have (on average 3.61054008596524) internal successors, (57960), 16053 states have internal predecessors, (57960), 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) [2022-02-10 22:25:37,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16054 states to 16054 states and 57960 transitions. [2022-02-10 22:25:37,680 INFO L78 Accepts]: Start accepts. Automaton has 16054 states and 57960 transitions. Word has length 90 [2022-02-10 22:25:37,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:37,681 INFO L470 AbstractCegarLoop]: Abstraction has 16054 states and 57960 transitions. [2022-02-10 22:25:37,681 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-10 22:25:37,681 INFO L276 IsEmpty]: Start isEmpty. Operand 16054 states and 57960 transitions. [2022-02-10 22:25:37,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-02-10 22:25:37,714 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:37,714 INFO L515 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] [2022-02-10 22:25:37,714 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-02-10 22:25:37,714 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:25:37,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:37,714 INFO L85 PathProgramCache]: Analyzing trace with hash 2082142827, now seen corresponding path program 5 times [2022-02-10 22:25:37,714 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:37,714 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827515746] [2022-02-10 22:25:37,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:37,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:37,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:37,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:37,784 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:37,784 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827515746] [2022-02-10 22:25:37,784 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [827515746] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:37,784 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:37,784 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-10 22:25:37,784 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502582211] [2022-02-10 22:25:37,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:37,784 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-10 22:25:37,785 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:37,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-10 22:25:37,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-02-10 22:25:37,785 INFO L87 Difference]: Start difference. First operand 16054 states and 57960 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-10 22:25:37,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:37,994 INFO L93 Difference]: Finished difference Result 28883 states and 100359 transitions. [2022-02-10 22:25:37,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-10 22:25:37,994 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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 90 [2022-02-10 22:25:37,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:38,078 INFO L225 Difference]: With dead ends: 28883 [2022-02-10 22:25:38,079 INFO L226 Difference]: Without dead ends: 28316 [2022-02-10 22:25:38,079 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-02-10 22:25:38,079 INFO L934 BasicCegarLoop]: 177 mSDtfsCounter, 251 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:38,079 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [251 Valid, 362 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:25:38,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28316 states. [2022-02-10 22:25:38,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28316 to 15760. [2022-02-10 22:25:38,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15760 states, 15759 states have (on average 3.59864204581509) internal successors, (56711), 15759 states have internal predecessors, (56711), 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) [2022-02-10 22:25:38,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15760 states to 15760 states and 56711 transitions. [2022-02-10 22:25:38,582 INFO L78 Accepts]: Start accepts. Automaton has 15760 states and 56711 transitions. Word has length 90 [2022-02-10 22:25:38,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:38,583 INFO L470 AbstractCegarLoop]: Abstraction has 15760 states and 56711 transitions. [2022-02-10 22:25:38,583 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-10 22:25:38,583 INFO L276 IsEmpty]: Start isEmpty. Operand 15760 states and 56711 transitions. [2022-02-10 22:25:38,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-02-10 22:25:38,614 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:38,614 INFO L515 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] [2022-02-10 22:25:38,614 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-02-10 22:25:38,614 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:25:38,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:38,615 INFO L85 PathProgramCache]: Analyzing trace with hash -236270007, now seen corresponding path program 3 times [2022-02-10 22:25:38,615 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:38,615 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026119416] [2022-02-10 22:25:38,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:38,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:38,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:38,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:38,677 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:38,677 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026119416] [2022-02-10 22:25:38,677 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026119416] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:38,677 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:38,677 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-10 22:25:38,677 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954486148] [2022-02-10 22:25:38,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:38,677 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-10 22:25:38,677 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:38,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-10 22:25:38,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-02-10 22:25:38,678 INFO L87 Difference]: Start difference. First operand 15760 states and 56711 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-10 22:25:38,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:38,897 INFO L93 Difference]: Finished difference Result 28816 states and 99790 transitions. [2022-02-10 22:25:38,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-10 22:25:38,897 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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 90 [2022-02-10 22:25:38,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:38,980 INFO L225 Difference]: With dead ends: 28816 [2022-02-10 22:25:38,980 INFO L226 Difference]: Without dead ends: 28149 [2022-02-10 22:25:38,981 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-02-10 22:25:38,981 INFO L934 BasicCegarLoop]: 197 mSDtfsCounter, 227 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:38,981 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [227 Valid, 478 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:25:39,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28149 states. [2022-02-10 22:25:39,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28149 to 15692. [2022-02-10 22:25:39,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15692 states, 15691 states have (on average 3.596520298260149) internal successors, (56433), 15691 states have internal predecessors, (56433), 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) [2022-02-10 22:25:39,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15692 states to 15692 states and 56433 transitions. [2022-02-10 22:25:39,485 INFO L78 Accepts]: Start accepts. Automaton has 15692 states and 56433 transitions. Word has length 90 [2022-02-10 22:25:39,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:39,485 INFO L470 AbstractCegarLoop]: Abstraction has 15692 states and 56433 transitions. [2022-02-10 22:25:39,485 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-10 22:25:39,486 INFO L276 IsEmpty]: Start isEmpty. Operand 15692 states and 56433 transitions. [2022-02-10 22:25:39,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-02-10 22:25:39,518 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:39,518 INFO L515 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] [2022-02-10 22:25:39,518 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-02-10 22:25:39,518 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:25:39,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:39,518 INFO L85 PathProgramCache]: Analyzing trace with hash -1771180783, now seen corresponding path program 4 times [2022-02-10 22:25:39,518 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:39,519 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672437370] [2022-02-10 22:25:39,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:39,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:39,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:39,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:39,584 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:39,584 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672437370] [2022-02-10 22:25:39,584 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1672437370] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:39,584 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:39,584 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-10 22:25:39,584 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588089285] [2022-02-10 22:25:39,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:39,585 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-10 22:25:39,585 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:39,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-10 22:25:39,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-02-10 22:25:39,585 INFO L87 Difference]: Start difference. First operand 15692 states and 56433 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-10 22:25:39,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:39,816 INFO L93 Difference]: Finished difference Result 27148 states and 94200 transitions. [2022-02-10 22:25:39,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-10 22:25:39,817 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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 90 [2022-02-10 22:25:39,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:39,896 INFO L225 Difference]: With dead ends: 27148 [2022-02-10 22:25:39,897 INFO L226 Difference]: Without dead ends: 26828 [2022-02-10 22:25:39,897 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-02-10 22:25:39,897 INFO L934 BasicCegarLoop]: 192 mSDtfsCounter, 203 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:39,898 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [203 Valid, 489 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:25:39,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26828 states. [2022-02-10 22:25:40,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26828 to 15728. [2022-02-10 22:25:40,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15728 states, 15727 states have (on average 3.590004450944236) internal successors, (56460), 15727 states have internal predecessors, (56460), 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) [2022-02-10 22:25:40,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15728 states to 15728 states and 56460 transitions. [2022-02-10 22:25:40,406 INFO L78 Accepts]: Start accepts. Automaton has 15728 states and 56460 transitions. Word has length 90 [2022-02-10 22:25:40,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:40,406 INFO L470 AbstractCegarLoop]: Abstraction has 15728 states and 56460 transitions. [2022-02-10 22:25:40,406 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-10 22:25:40,406 INFO L276 IsEmpty]: Start isEmpty. Operand 15728 states and 56460 transitions. [2022-02-10 22:25:40,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-02-10 22:25:40,441 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:40,441 INFO L515 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] [2022-02-10 22:25:40,441 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-02-10 22:25:40,441 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:25:40,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:40,441 INFO L85 PathProgramCache]: Analyzing trace with hash 1293091945, now seen corresponding path program 5 times [2022-02-10 22:25:40,441 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:40,441 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82250304] [2022-02-10 22:25:40,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:40,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:40,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:40,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:40,510 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:40,510 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82250304] [2022-02-10 22:25:40,510 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82250304] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:40,510 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:40,510 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-10 22:25:40,510 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344224306] [2022-02-10 22:25:40,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:40,511 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-10 22:25:40,511 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:40,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-10 22:25:40,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-02-10 22:25:40,511 INFO L87 Difference]: Start difference. First operand 15728 states and 56460 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-10 22:25:40,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:40,783 INFO L93 Difference]: Finished difference Result 28010 states and 96568 transitions. [2022-02-10 22:25:40,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-10 22:25:40,784 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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 90 [2022-02-10 22:25:40,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:40,869 INFO L225 Difference]: With dead ends: 28010 [2022-02-10 22:25:40,869 INFO L226 Difference]: Without dead ends: 28010 [2022-02-10 22:25:40,870 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-02-10 22:25:40,870 INFO L934 BasicCegarLoop]: 249 mSDtfsCounter, 249 mSDsluCounter, 441 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 657 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:40,870 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [249 Valid, 657 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:25:40,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28010 states. [2022-02-10 22:25:41,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28010 to 15141. [2022-02-10 22:25:41,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15141 states, 15140 states have (on average 3.5955085865257597) internal successors, (54436), 15140 states have internal predecessors, (54436), 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) [2022-02-10 22:25:41,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15141 states to 15141 states and 54436 transitions. [2022-02-10 22:25:41,372 INFO L78 Accepts]: Start accepts. Automaton has 15141 states and 54436 transitions. Word has length 90 [2022-02-10 22:25:41,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:41,372 INFO L470 AbstractCegarLoop]: Abstraction has 15141 states and 54436 transitions. [2022-02-10 22:25:41,372 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-10 22:25:41,372 INFO L276 IsEmpty]: Start isEmpty. Operand 15141 states and 54436 transitions. [2022-02-10 22:25:41,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-02-10 22:25:41,403 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:41,403 INFO L515 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] [2022-02-10 22:25:41,404 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-02-10 22:25:41,404 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:25:41,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:41,404 INFO L85 PathProgramCache]: Analyzing trace with hash -1876444117, now seen corresponding path program 4 times [2022-02-10 22:25:41,404 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:41,404 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778200971] [2022-02-10 22:25:41,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:41,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:41,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:41,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:41,455 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:41,455 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778200971] [2022-02-10 22:25:41,455 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778200971] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:41,455 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:41,455 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-10 22:25:41,456 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608010410] [2022-02-10 22:25:41,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:41,456 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-10 22:25:41,456 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:41,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-10 22:25:41,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-02-10 22:25:41,456 INFO L87 Difference]: Start difference. First operand 15141 states and 54436 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-10 22:25:41,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:41,716 INFO L93 Difference]: Finished difference Result 26440 states and 91360 transitions. [2022-02-10 22:25:41,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-10 22:25:41,716 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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 90 [2022-02-10 22:25:41,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:41,963 INFO L225 Difference]: With dead ends: 26440 [2022-02-10 22:25:41,963 INFO L226 Difference]: Without dead ends: 26440 [2022-02-10 22:25:41,963 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-02-10 22:25:41,965 INFO L934 BasicCegarLoop]: 242 mSDtfsCounter, 238 mSDsluCounter, 446 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 238 SdHoareTripleChecker+Valid, 656 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:41,965 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [238 Valid, 656 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:25:42,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26440 states. [2022-02-10 22:25:42,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26440 to 14945. [2022-02-10 22:25:42,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14945 states, 14944 states have (on average 3.576953961456103) internal successors, (53454), 14944 states have internal predecessors, (53454), 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) [2022-02-10 22:25:42,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14945 states to 14945 states and 53454 transitions. [2022-02-10 22:25:42,350 INFO L78 Accepts]: Start accepts. Automaton has 14945 states and 53454 transitions. Word has length 90 [2022-02-10 22:25:42,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:42,350 INFO L470 AbstractCegarLoop]: Abstraction has 14945 states and 53454 transitions. [2022-02-10 22:25:42,350 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-10 22:25:42,350 INFO L276 IsEmpty]: Start isEmpty. Operand 14945 states and 53454 transitions. [2022-02-10 22:25:42,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-02-10 22:25:42,378 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:42,378 INFO L515 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] [2022-02-10 22:25:42,378 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-02-10 22:25:42,378 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:25:42,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:42,379 INFO L85 PathProgramCache]: Analyzing trace with hash -401241399, now seen corresponding path program 6 times [2022-02-10 22:25:42,379 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:42,379 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255117501] [2022-02-10 22:25:42,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:42,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:42,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:42,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:42,429 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:42,429 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255117501] [2022-02-10 22:25:42,429 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255117501] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:42,429 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:42,429 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-10 22:25:42,429 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913884026] [2022-02-10 22:25:42,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:42,429 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-10 22:25:42,429 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:42,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-10 22:25:42,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-02-10 22:25:42,430 INFO L87 Difference]: Start difference. First operand 14945 states and 53454 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-10 22:25:42,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:42,631 INFO L93 Difference]: Finished difference Result 26641 states and 91953 transitions. [2022-02-10 22:25:42,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-10 22:25:42,631 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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 90 [2022-02-10 22:25:42,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:42,708 INFO L225 Difference]: With dead ends: 26641 [2022-02-10 22:25:42,709 INFO L226 Difference]: Without dead ends: 26606 [2022-02-10 22:25:42,709 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-02-10 22:25:42,709 INFO L934 BasicCegarLoop]: 213 mSDtfsCounter, 300 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 300 SdHoareTripleChecker+Valid, 471 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:42,710 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [300 Valid, 471 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:25:42,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26606 states. [2022-02-10 22:25:43,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26606 to 14945. [2022-02-10 22:25:43,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14945 states, 14944 states have (on average 3.5761509635974305) internal successors, (53442), 14944 states have internal predecessors, (53442), 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) [2022-02-10 22:25:43,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14945 states to 14945 states and 53442 transitions. [2022-02-10 22:25:43,109 INFO L78 Accepts]: Start accepts. Automaton has 14945 states and 53442 transitions. Word has length 90 [2022-02-10 22:25:43,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:43,109 INFO L470 AbstractCegarLoop]: Abstraction has 14945 states and 53442 transitions. [2022-02-10 22:25:43,109 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-10 22:25:43,109 INFO L276 IsEmpty]: Start isEmpty. Operand 14945 states and 53442 transitions. [2022-02-10 22:25:43,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-02-10 22:25:43,137 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:43,138 INFO L515 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] [2022-02-10 22:25:43,138 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-02-10 22:25:43,138 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:25:43,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:43,138 INFO L85 PathProgramCache]: Analyzing trace with hash -1720416441, now seen corresponding path program 5 times [2022-02-10 22:25:43,138 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:43,138 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171609271] [2022-02-10 22:25:43,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:43,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:43,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:43,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:43,189 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:43,189 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171609271] [2022-02-10 22:25:43,189 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [171609271] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:43,189 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:43,189 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-10 22:25:43,189 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032893371] [2022-02-10 22:25:43,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:43,190 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-10 22:25:43,190 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:43,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-10 22:25:43,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-02-10 22:25:43,190 INFO L87 Difference]: Start difference. First operand 14945 states and 53442 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-10 22:25:43,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:43,407 INFO L93 Difference]: Finished difference Result 27075 states and 92823 transitions. [2022-02-10 22:25:43,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-10 22:25:43,408 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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 90 [2022-02-10 22:25:43,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:43,494 INFO L225 Difference]: With dead ends: 27075 [2022-02-10 22:25:43,494 INFO L226 Difference]: Without dead ends: 26602 [2022-02-10 22:25:43,494 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-02-10 22:25:43,494 INFO L934 BasicCegarLoop]: 197 mSDtfsCounter, 275 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:43,495 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [275 Valid, 473 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:25:43,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26602 states. [2022-02-10 22:25:43,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26602 to 14669. [2022-02-10 22:25:43,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14669 states, 14668 states have (on average 3.568243796018544) internal successors, (52339), 14668 states have internal predecessors, (52339), 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) [2022-02-10 22:25:43,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14669 states to 14669 states and 52339 transitions. [2022-02-10 22:25:43,916 INFO L78 Accepts]: Start accepts. Automaton has 14669 states and 52339 transitions. Word has length 90 [2022-02-10 22:25:43,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:43,917 INFO L470 AbstractCegarLoop]: Abstraction has 14669 states and 52339 transitions. [2022-02-10 22:25:43,917 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-10 22:25:43,917 INFO L276 IsEmpty]: Start isEmpty. Operand 14669 states and 52339 transitions. [2022-02-10 22:25:43,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-02-10 22:25:43,946 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:43,946 INFO L515 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] [2022-02-10 22:25:43,946 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-02-10 22:25:43,946 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:25:43,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:43,946 INFO L85 PathProgramCache]: Analyzing trace with hash 525140649, now seen corresponding path program 6 times [2022-02-10 22:25:43,946 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:43,947 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159883647] [2022-02-10 22:25:43,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:43,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:43,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:43,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:43,992 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:43,992 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159883647] [2022-02-10 22:25:43,992 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1159883647] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:43,992 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:43,992 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-10 22:25:43,993 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966703551] [2022-02-10 22:25:43,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:43,993 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-10 22:25:43,993 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:43,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-10 22:25:43,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-02-10 22:25:43,993 INFO L87 Difference]: Start difference. First operand 14669 states and 52339 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-10 22:25:44,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:44,192 INFO L93 Difference]: Finished difference Result 26098 states and 89483 transitions. [2022-02-10 22:25:44,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-10 22:25:44,192 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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 90 [2022-02-10 22:25:44,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:44,267 INFO L225 Difference]: With dead ends: 26098 [2022-02-10 22:25:44,267 INFO L226 Difference]: Without dead ends: 25431 [2022-02-10 22:25:44,267 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-02-10 22:25:44,268 INFO L934 BasicCegarLoop]: 204 mSDtfsCounter, 194 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:44,268 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [194 Valid, 505 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:25:44,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25431 states. [2022-02-10 22:25:44,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25431 to 14072. [2022-02-10 22:25:44,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14072 states, 14071 states have (on average 3.5677634851822897) internal successors, (50202), 14071 states have internal predecessors, (50202), 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) [2022-02-10 22:25:44,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14072 states to 14072 states and 50202 transitions. [2022-02-10 22:25:44,661 INFO L78 Accepts]: Start accepts. Automaton has 14072 states and 50202 transitions. Word has length 90 [2022-02-10 22:25:44,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:44,661 INFO L470 AbstractCegarLoop]: Abstraction has 14072 states and 50202 transitions. [2022-02-10 22:25:44,661 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-10 22:25:44,661 INFO L276 IsEmpty]: Start isEmpty. Operand 14072 states and 50202 transitions. [2022-02-10 22:25:44,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-02-10 22:25:44,688 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:44,688 INFO L515 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] [2022-02-10 22:25:44,689 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-02-10 22:25:44,689 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:25:44,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:44,689 INFO L85 PathProgramCache]: Analyzing trace with hash 131179825, now seen corresponding path program 7 times [2022-02-10 22:25:44,689 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:44,689 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375130326] [2022-02-10 22:25:44,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:44,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:44,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:44,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:44,755 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:44,755 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375130326] [2022-02-10 22:25:44,755 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375130326] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:44,755 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:44,755 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-10 22:25:44,755 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991264425] [2022-02-10 22:25:44,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:44,756 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-10 22:25:44,756 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:44,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-10 22:25:44,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-02-10 22:25:44,756 INFO L87 Difference]: Start difference. First operand 14072 states and 50202 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-10 22:25:44,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:44,922 INFO L93 Difference]: Finished difference Result 22260 states and 77323 transitions. [2022-02-10 22:25:44,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-10 22:25:44,922 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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 90 [2022-02-10 22:25:44,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:44,975 INFO L225 Difference]: With dead ends: 22260 [2022-02-10 22:25:44,976 INFO L226 Difference]: Without dead ends: 22260 [2022-02-10 22:25:44,976 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-02-10 22:25:44,976 INFO L934 BasicCegarLoop]: 216 mSDtfsCounter, 174 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:44,976 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [174 Valid, 495 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:25:45,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22260 states. [2022-02-10 22:25:45,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22260 to 14208. [2022-02-10 22:25:45,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14208 states, 14207 states have (on average 3.568100232279862) internal successors, (50692), 14207 states have internal predecessors, (50692), 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) [2022-02-10 22:25:45,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14208 states to 14208 states and 50692 transitions. [2022-02-10 22:25:45,328 INFO L78 Accepts]: Start accepts. Automaton has 14208 states and 50692 transitions. Word has length 90 [2022-02-10 22:25:45,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:45,328 INFO L470 AbstractCegarLoop]: Abstraction has 14208 states and 50692 transitions. [2022-02-10 22:25:45,328 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-10 22:25:45,328 INFO L276 IsEmpty]: Start isEmpty. Operand 14208 states and 50692 transitions. [2022-02-10 22:25:45,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-02-10 22:25:45,356 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:45,356 INFO L515 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] [2022-02-10 22:25:45,356 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-02-10 22:25:45,356 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:25:45,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:45,357 INFO L85 PathProgramCache]: Analyzing trace with hash 1461052049, now seen corresponding path program 7 times [2022-02-10 22:25:45,357 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:45,357 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427179164] [2022-02-10 22:25:45,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:45,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:45,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:45,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:45,409 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:45,409 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427179164] [2022-02-10 22:25:45,409 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427179164] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:45,409 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:45,409 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-10 22:25:45,409 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585726309] [2022-02-10 22:25:45,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:45,409 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-10 22:25:45,410 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:45,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-10 22:25:45,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-02-10 22:25:45,410 INFO L87 Difference]: Start difference. First operand 14208 states and 50692 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-10 22:25:45,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:45,609 INFO L93 Difference]: Finished difference Result 28845 states and 99118 transitions. [2022-02-10 22:25:45,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-10 22:25:45,623 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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 90 [2022-02-10 22:25:45,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:45,711 INFO L225 Difference]: With dead ends: 28845 [2022-02-10 22:25:45,711 INFO L226 Difference]: Without dead ends: 28525 [2022-02-10 22:25:45,711 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-02-10 22:25:45,712 INFO L934 BasicCegarLoop]: 201 mSDtfsCounter, 196 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 443 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:45,712 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [196 Valid, 443 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:25:45,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28525 states. [2022-02-10 22:25:46,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28525 to 14188. [2022-02-10 22:25:46,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14188 states, 14187 states have (on average 3.569958412631282) internal successors, (50647), 14187 states have internal predecessors, (50647), 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) [2022-02-10 22:25:46,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14188 states to 14188 states and 50647 transitions. [2022-02-10 22:25:46,118 INFO L78 Accepts]: Start accepts. Automaton has 14188 states and 50647 transitions. Word has length 90 [2022-02-10 22:25:46,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:46,118 INFO L470 AbstractCegarLoop]: Abstraction has 14188 states and 50647 transitions. [2022-02-10 22:25:46,118 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-10 22:25:46,118 INFO L276 IsEmpty]: Start isEmpty. Operand 14188 states and 50647 transitions. [2022-02-10 22:25:46,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-02-10 22:25:46,144 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:46,144 INFO L515 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] [2022-02-10 22:25:46,145 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-02-10 22:25:46,145 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:25:46,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:46,145 INFO L85 PathProgramCache]: Analyzing trace with hash 1967540401, now seen corresponding path program 8 times [2022-02-10 22:25:46,145 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:46,145 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132901878] [2022-02-10 22:25:46,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:46,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:46,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:46,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:46,219 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:46,219 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132901878] [2022-02-10 22:25:46,219 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132901878] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:46,219 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:46,220 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-10 22:25:46,220 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204508394] [2022-02-10 22:25:46,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:46,220 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-10 22:25:46,220 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:46,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-10 22:25:46,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-02-10 22:25:46,220 INFO L87 Difference]: Start difference. First operand 14188 states and 50647 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-10 22:25:46,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:46,425 INFO L93 Difference]: Finished difference Result 25696 states and 88457 transitions. [2022-02-10 22:25:46,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-10 22:25:46,425 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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 90 [2022-02-10 22:25:46,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:46,497 INFO L225 Difference]: With dead ends: 25696 [2022-02-10 22:25:46,497 INFO L226 Difference]: Without dead ends: 25657 [2022-02-10 22:25:46,497 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-02-10 22:25:46,498 INFO L934 BasicCegarLoop]: 175 mSDtfsCounter, 279 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:46,498 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [279 Valid, 344 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:25:46,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25657 states. [2022-02-10 22:25:46,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25657 to 14051. [2022-02-10 22:25:46,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14051 states, 14050 states have (on average 3.5637010676156584) internal successors, (50070), 14050 states have internal predecessors, (50070), 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) [2022-02-10 22:25:46,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14051 states to 14051 states and 50070 transitions. [2022-02-10 22:25:46,884 INFO L78 Accepts]: Start accepts. Automaton has 14051 states and 50070 transitions. Word has length 90 [2022-02-10 22:25:46,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:46,884 INFO L470 AbstractCegarLoop]: Abstraction has 14051 states and 50070 transitions. [2022-02-10 22:25:46,884 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-10 22:25:46,884 INFO L276 IsEmpty]: Start isEmpty. Operand 14051 states and 50070 transitions. [2022-02-10 22:25:46,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-02-10 22:25:46,911 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:46,911 INFO L515 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] [2022-02-10 22:25:46,911 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-02-10 22:25:46,911 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:25:46,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:46,912 INFO L85 PathProgramCache]: Analyzing trace with hash -1299810223, now seen corresponding path program 8 times [2022-02-10 22:25:46,912 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:46,912 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062589119] [2022-02-10 22:25:46,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:46,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:46,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:46,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:46,968 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:46,969 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062589119] [2022-02-10 22:25:46,969 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2062589119] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:46,969 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:46,969 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-10 22:25:46,969 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371834469] [2022-02-10 22:25:46,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:46,969 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-10 22:25:46,969 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:46,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-10 22:25:46,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-02-10 22:25:46,970 INFO L87 Difference]: Start difference. First operand 14051 states and 50070 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-10 22:25:47,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:47,158 INFO L93 Difference]: Finished difference Result 23573 states and 82398 transitions. [2022-02-10 22:25:47,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-10 22:25:47,158 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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 90 [2022-02-10 22:25:47,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:47,224 INFO L225 Difference]: With dead ends: 23573 [2022-02-10 22:25:47,224 INFO L226 Difference]: Without dead ends: 23356 [2022-02-10 22:25:47,224 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-02-10 22:25:47,224 INFO L934 BasicCegarLoop]: 185 mSDtfsCounter, 219 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 407 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:47,225 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [219 Valid, 407 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:25:47,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23356 states. [2022-02-10 22:25:47,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23356 to 14051. [2022-02-10 22:25:47,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14051 states, 14050 states have (on average 3.561708185053381) internal successors, (50042), 14050 states have internal predecessors, (50042), 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) [2022-02-10 22:25:47,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14051 states to 14051 states and 50042 transitions. [2022-02-10 22:25:47,597 INFO L78 Accepts]: Start accepts. Automaton has 14051 states and 50042 transitions. Word has length 90 [2022-02-10 22:25:47,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:47,598 INFO L470 AbstractCegarLoop]: Abstraction has 14051 states and 50042 transitions. [2022-02-10 22:25:47,598 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-10 22:25:47,598 INFO L276 IsEmpty]: Start isEmpty. Operand 14051 states and 50042 transitions. [2022-02-10 22:25:47,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-02-10 22:25:47,624 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:47,624 INFO L515 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] [2022-02-10 22:25:47,624 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-02-10 22:25:47,624 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:25:47,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:47,625 INFO L85 PathProgramCache]: Analyzing trace with hash 577965007, now seen corresponding path program 9 times [2022-02-10 22:25:47,625 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:47,625 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23408929] [2022-02-10 22:25:47,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:47,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:47,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:47,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:47,683 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:47,683 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23408929] [2022-02-10 22:25:47,683 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23408929] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:47,683 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:47,683 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-10 22:25:47,683 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706912676] [2022-02-10 22:25:47,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:47,684 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-10 22:25:47,684 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:47,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-10 22:25:47,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-02-10 22:25:47,684 INFO L87 Difference]: Start difference. First operand 14051 states and 50042 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-10 22:25:47,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:47,852 INFO L93 Difference]: Finished difference Result 21777 states and 76138 transitions. [2022-02-10 22:25:47,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-10 22:25:47,853 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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 90 [2022-02-10 22:25:47,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:47,910 INFO L225 Difference]: With dead ends: 21777 [2022-02-10 22:25:47,910 INFO L226 Difference]: Without dead ends: 21777 [2022-02-10 22:25:47,910 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-02-10 22:25:47,911 INFO L934 BasicCegarLoop]: 204 mSDtfsCounter, 206 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 465 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:47,911 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [206 Valid, 465 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:25:47,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21777 states. [2022-02-10 22:25:48,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21777 to 14135. [2022-02-10 22:25:48,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14135 states, 14134 states have (on average 3.5718834017263337) internal successors, (50485), 14134 states have internal predecessors, (50485), 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) [2022-02-10 22:25:48,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14135 states to 14135 states and 50485 transitions. [2022-02-10 22:25:48,262 INFO L78 Accepts]: Start accepts. Automaton has 14135 states and 50485 transitions. Word has length 90 [2022-02-10 22:25:48,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:48,262 INFO L470 AbstractCegarLoop]: Abstraction has 14135 states and 50485 transitions. [2022-02-10 22:25:48,262 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-10 22:25:48,262 INFO L276 IsEmpty]: Start isEmpty. Operand 14135 states and 50485 transitions. [2022-02-10 22:25:48,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-02-10 22:25:48,290 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:48,290 INFO L515 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] [2022-02-10 22:25:48,290 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-02-10 22:25:48,290 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:25:48,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:48,291 INFO L85 PathProgramCache]: Analyzing trace with hash 1342608609, now seen corresponding path program 9 times [2022-02-10 22:25:48,291 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:48,291 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552705077] [2022-02-10 22:25:48,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:48,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:48,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:48,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:48,354 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:48,354 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552705077] [2022-02-10 22:25:48,354 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1552705077] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:48,354 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:48,354 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-10 22:25:48,354 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416155864] [2022-02-10 22:25:48,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:48,355 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-10 22:25:48,355 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:48,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-10 22:25:48,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-02-10 22:25:48,355 INFO L87 Difference]: Start difference. First operand 14135 states and 50485 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-10 22:25:48,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:48,541 INFO L93 Difference]: Finished difference Result 25437 states and 87582 transitions. [2022-02-10 22:25:48,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-10 22:25:48,548 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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 90 [2022-02-10 22:25:48,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:48,619 INFO L225 Difference]: With dead ends: 25437 [2022-02-10 22:25:48,619 INFO L226 Difference]: Without dead ends: 25437 [2022-02-10 22:25:48,619 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-02-10 22:25:48,620 INFO L934 BasicCegarLoop]: 194 mSDtfsCounter, 225 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 471 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:48,620 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [225 Valid, 471 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:25:48,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25437 states. [2022-02-10 22:25:49,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25437 to 13967. [2022-02-10 22:25:49,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13967 states, 13966 states have (on average 3.555706716311041) internal successors, (49659), 13966 states have internal predecessors, (49659), 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) [2022-02-10 22:25:49,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13967 states to 13967 states and 49659 transitions. [2022-02-10 22:25:49,118 INFO L78 Accepts]: Start accepts. Automaton has 13967 states and 49659 transitions. Word has length 90 [2022-02-10 22:25:49,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:49,118 INFO L470 AbstractCegarLoop]: Abstraction has 13967 states and 49659 transitions. [2022-02-10 22:25:49,118 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-10 22:25:49,119 INFO L276 IsEmpty]: Start isEmpty. Operand 13967 states and 49659 transitions. [2022-02-10 22:25:49,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-02-10 22:25:49,146 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:49,146 INFO L515 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] [2022-02-10 22:25:49,146 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-02-10 22:25:49,146 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:25:49,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:49,147 INFO L85 PathProgramCache]: Analyzing trace with hash 1849096961, now seen corresponding path program 10 times [2022-02-10 22:25:49,147 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:49,147 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77208775] [2022-02-10 22:25:49,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:49,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:49,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:49,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:49,201 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:49,201 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77208775] [2022-02-10 22:25:49,201 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77208775] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:49,201 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:49,201 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-10 22:25:49,201 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914496525] [2022-02-10 22:25:49,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:49,201 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-10 22:25:49,202 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:49,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-10 22:25:49,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-02-10 22:25:49,202 INFO L87 Difference]: Start difference. First operand 13967 states and 49659 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-10 22:25:49,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:49,402 INFO L93 Difference]: Finished difference Result 27888 states and 94683 transitions. [2022-02-10 22:25:49,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-10 22:25:49,402 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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 90 [2022-02-10 22:25:49,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:49,484 INFO L225 Difference]: With dead ends: 27888 [2022-02-10 22:25:49,484 INFO L226 Difference]: Without dead ends: 27290 [2022-02-10 22:25:49,484 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-02-10 22:25:49,484 INFO L934 BasicCegarLoop]: 179 mSDtfsCounter, 236 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:49,485 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [236 Valid, 406 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:25:49,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27290 states. [2022-02-10 22:25:49,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27290 to 13746. [2022-02-10 22:25:49,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13746 states, 13745 states have (on average 3.5372862859221534) internal successors, (48620), 13745 states have internal predecessors, (48620), 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) [2022-02-10 22:25:49,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13746 states to 13746 states and 48620 transitions. [2022-02-10 22:25:49,999 INFO L78 Accepts]: Start accepts. Automaton has 13746 states and 48620 transitions. Word has length 90 [2022-02-10 22:25:49,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:49,999 INFO L470 AbstractCegarLoop]: Abstraction has 13746 states and 48620 transitions. [2022-02-10 22:25:49,999 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-10 22:25:49,999 INFO L276 IsEmpty]: Start isEmpty. Operand 13746 states and 48620 transitions. [2022-02-10 22:25:50,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-02-10 22:25:50,026 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:50,026 INFO L515 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] [2022-02-10 22:25:50,026 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-02-10 22:25:50,026 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:25:50,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:50,026 INFO L85 PathProgramCache]: Analyzing trace with hash -1418253663, now seen corresponding path program 10 times [2022-02-10 22:25:50,026 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:50,027 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304511192] [2022-02-10 22:25:50,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:50,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:50,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:50,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:50,075 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:50,075 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304511192] [2022-02-10 22:25:50,075 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304511192] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:50,075 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:50,075 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-10 22:25:50,075 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729593095] [2022-02-10 22:25:50,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:50,075 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-10 22:25:50,075 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:50,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-10 22:25:50,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-02-10 22:25:50,076 INFO L87 Difference]: Start difference. First operand 13746 states and 48620 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-10 22:25:50,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:50,255 INFO L93 Difference]: Finished difference Result 25776 states and 87774 transitions. [2022-02-10 22:25:50,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-10 22:25:50,256 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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 90 [2022-02-10 22:25:50,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:50,465 INFO L225 Difference]: With dead ends: 25776 [2022-02-10 22:25:50,465 INFO L226 Difference]: Without dead ends: 25559 [2022-02-10 22:25:50,466 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-02-10 22:25:50,466 INFO L934 BasicCegarLoop]: 175 mSDtfsCounter, 266 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 266 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:50,466 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [266 Valid, 354 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:25:50,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25559 states. [2022-02-10 22:25:50,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25559 to 13746. [2022-02-10 22:25:50,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13746 states, 13745 states have (on average 3.535249181520553) internal successors, (48592), 13745 states have internal predecessors, (48592), 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) [2022-02-10 22:25:50,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13746 states to 13746 states and 48592 transitions. [2022-02-10 22:25:50,821 INFO L78 Accepts]: Start accepts. Automaton has 13746 states and 48592 transitions. Word has length 90 [2022-02-10 22:25:50,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:50,821 INFO L470 AbstractCegarLoop]: Abstraction has 13746 states and 48592 transitions. [2022-02-10 22:25:50,821 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-10 22:25:50,821 INFO L276 IsEmpty]: Start isEmpty. Operand 13746 states and 48592 transitions. [2022-02-10 22:25:50,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-02-10 22:25:50,848 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:50,848 INFO L515 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] [2022-02-10 22:25:50,848 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-02-10 22:25:50,848 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:25:50,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:50,848 INFO L85 PathProgramCache]: Analyzing trace with hash 459521567, now seen corresponding path program 11 times [2022-02-10 22:25:50,849 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:50,849 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111667047] [2022-02-10 22:25:50,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:50,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:50,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:51,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:51,034 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:51,034 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111667047] [2022-02-10 22:25:51,034 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111667047] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:51,034 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:51,034 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-10 22:25:51,034 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760203352] [2022-02-10 22:25:51,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:51,034 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-10 22:25:51,034 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:51,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-10 22:25:51,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-02-10 22:25:51,035 INFO L87 Difference]: Start difference. First operand 13746 states and 48592 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-10 22:25:51,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:51,205 INFO L93 Difference]: Finished difference Result 24930 states and 84631 transitions. [2022-02-10 22:25:51,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-10 22:25:51,205 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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 90 [2022-02-10 22:25:51,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:51,271 INFO L225 Difference]: With dead ends: 24930 [2022-02-10 22:25:51,271 INFO L226 Difference]: Without dead ends: 24930 [2022-02-10 22:25:51,271 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-02-10 22:25:51,272 INFO L934 BasicCegarLoop]: 185 mSDtfsCounter, 199 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:51,272 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [199 Valid, 418 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:25:51,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24930 states. [2022-02-10 22:25:51,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24930 to 13186. [2022-02-10 22:25:51,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13186 states, 13185 states have (on average 3.4939704209328784) internal successors, (46068), 13185 states have internal predecessors, (46068), 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) [2022-02-10 22:25:51,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13186 states to 13186 states and 46068 transitions. [2022-02-10 22:25:51,615 INFO L78 Accepts]: Start accepts. Automaton has 13186 states and 46068 transitions. Word has length 90 [2022-02-10 22:25:51,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:51,615 INFO L470 AbstractCegarLoop]: Abstraction has 13186 states and 46068 transitions. [2022-02-10 22:25:51,615 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-10 22:25:51,615 INFO L276 IsEmpty]: Start isEmpty. Operand 13186 states and 46068 transitions. [2022-02-10 22:25:51,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-02-10 22:25:51,640 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:51,640 INFO L515 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] [2022-02-10 22:25:51,640 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-02-10 22:25:51,640 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:25:51,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:51,640 INFO L85 PathProgramCache]: Analyzing trace with hash -445798205, now seen corresponding path program 12 times [2022-02-10 22:25:51,640 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:51,640 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597804918] [2022-02-10 22:25:51,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:51,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:51,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:51,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:51,678 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:51,678 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597804918] [2022-02-10 22:25:51,678 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597804918] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:51,678 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:51,678 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-10 22:25:51,678 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313713302] [2022-02-10 22:25:51,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:51,678 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-10 22:25:51,678 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:51,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-10 22:25:51,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-02-10 22:25:51,679 INFO L87 Difference]: Start difference. First operand 13186 states and 46068 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-10 22:25:51,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:51,957 INFO L93 Difference]: Finished difference Result 24024 states and 81087 transitions. [2022-02-10 22:25:51,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-10 22:25:51,958 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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 90 [2022-02-10 22:25:51,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:52,021 INFO L225 Difference]: With dead ends: 24024 [2022-02-10 22:25:52,021 INFO L226 Difference]: Without dead ends: 23590 [2022-02-10 22:25:52,022 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-02-10 22:25:52,022 INFO L934 BasicCegarLoop]: 187 mSDtfsCounter, 239 mSDsluCounter, 440 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 239 SdHoareTripleChecker+Valid, 595 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:52,023 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [239 Valid, 595 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:25:52,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23590 states. [2022-02-10 22:25:52,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23590 to 13146. [2022-02-10 22:25:52,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13146 states, 13145 states have (on average 3.491365538227463) internal successors, (45894), 13145 states have internal predecessors, (45894), 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) [2022-02-10 22:25:52,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13146 states to 13146 states and 45894 transitions. [2022-02-10 22:25:52,382 INFO L78 Accepts]: Start accepts. Automaton has 13146 states and 45894 transitions. Word has length 90 [2022-02-10 22:25:52,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:52,383 INFO L470 AbstractCegarLoop]: Abstraction has 13146 states and 45894 transitions. [2022-02-10 22:25:52,383 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-10 22:25:52,383 INFO L276 IsEmpty]: Start isEmpty. Operand 13146 states and 45894 transitions. [2022-02-10 22:25:52,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-02-10 22:25:52,409 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:52,409 INFO L515 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] [2022-02-10 22:25:52,409 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-02-10 22:25:52,409 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:25:52,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:52,409 INFO L85 PathProgramCache]: Analyzing trace with hash 1491200925, now seen corresponding path program 5 times [2022-02-10 22:25:52,410 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:52,410 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124323032] [2022-02-10 22:25:52,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:52,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:52,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:52,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:52,468 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:52,468 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124323032] [2022-02-10 22:25:52,468 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2124323032] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:52,468 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:52,468 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-10 22:25:52,469 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885772751] [2022-02-10 22:25:52,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:52,469 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-10 22:25:52,469 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:52,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-10 22:25:52,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-02-10 22:25:52,469 INFO L87 Difference]: Start difference. First operand 13146 states and 45894 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-10 22:25:52,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:52,660 INFO L93 Difference]: Finished difference Result 22113 states and 75434 transitions. [2022-02-10 22:25:52,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-10 22:25:52,661 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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 90 [2022-02-10 22:25:52,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:52,724 INFO L225 Difference]: With dead ends: 22113 [2022-02-10 22:25:52,724 INFO L226 Difference]: Without dead ends: 22113 [2022-02-10 22:25:52,724 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-02-10 22:25:52,724 INFO L934 BasicCegarLoop]: 196 mSDtfsCounter, 221 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 447 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:52,725 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [221 Valid, 447 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:25:52,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22113 states. [2022-02-10 22:25:53,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22113 to 13146. [2022-02-10 22:25:53,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13146 states, 13145 states have (on average 3.491365538227463) internal successors, (45894), 13145 states have internal predecessors, (45894), 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) [2022-02-10 22:25:53,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13146 states to 13146 states and 45894 transitions. [2022-02-10 22:25:53,120 INFO L78 Accepts]: Start accepts. Automaton has 13146 states and 45894 transitions. Word has length 90 [2022-02-10 22:25:53,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:53,120 INFO L470 AbstractCegarLoop]: Abstraction has 13146 states and 45894 transitions. [2022-02-10 22:25:53,120 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-10 22:25:53,120 INFO L276 IsEmpty]: Start isEmpty. Operand 13146 states and 45894 transitions. [2022-02-10 22:25:53,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-02-10 22:25:53,146 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:53,146 INFO L515 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] [2022-02-10 22:25:53,146 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-02-10 22:25:53,147 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:25:53,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:53,147 INFO L85 PathProgramCache]: Analyzing trace with hash 1705567293, now seen corresponding path program 6 times [2022-02-10 22:25:53,147 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:53,147 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662351478] [2022-02-10 22:25:53,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:53,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:53,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:53,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:53,237 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:53,237 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662351478] [2022-02-10 22:25:53,237 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662351478] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:53,237 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:53,237 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-10 22:25:53,237 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123568522] [2022-02-10 22:25:53,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:53,237 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-10 22:25:53,237 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:53,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-10 22:25:53,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-02-10 22:25:53,238 INFO L87 Difference]: Start difference. First operand 13146 states and 45894 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-10 22:25:53,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:53,409 INFO L93 Difference]: Finished difference Result 24921 states and 84641 transitions. [2022-02-10 22:25:53,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-10 22:25:53,409 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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 90 [2022-02-10 22:25:53,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:53,478 INFO L225 Difference]: With dead ends: 24921 [2022-02-10 22:25:53,478 INFO L226 Difference]: Without dead ends: 24921 [2022-02-10 22:25:53,479 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-02-10 22:25:53,479 INFO L934 BasicCegarLoop]: 193 mSDtfsCounter, 176 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 443 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:53,479 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [176 Valid, 443 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:25:53,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24921 states. [2022-02-10 22:25:53,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24921 to 13146. [2022-02-10 22:25:53,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13146 states, 13145 states have (on average 3.491365538227463) internal successors, (45894), 13145 states have internal predecessors, (45894), 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) [2022-02-10 22:25:53,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13146 states to 13146 states and 45894 transitions. [2022-02-10 22:25:53,908 INFO L78 Accepts]: Start accepts. Automaton has 13146 states and 45894 transitions. Word has length 90 [2022-02-10 22:25:53,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:53,908 INFO L470 AbstractCegarLoop]: Abstraction has 13146 states and 45894 transitions. [2022-02-10 22:25:53,908 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-10 22:25:53,908 INFO L276 IsEmpty]: Start isEmpty. Operand 13146 states and 45894 transitions. [2022-02-10 22:25:53,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-02-10 22:25:53,933 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:53,933 INFO L515 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] [2022-02-10 22:25:53,933 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-02-10 22:25:53,933 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:25:53,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:53,934 INFO L85 PathProgramCache]: Analyzing trace with hash -826567585, now seen corresponding path program 6 times [2022-02-10 22:25:53,934 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:53,934 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134414753] [2022-02-10 22:25:53,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:53,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:53,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:53,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:53,990 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:53,990 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134414753] [2022-02-10 22:25:53,990 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134414753] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:53,990 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:53,990 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-10 22:25:53,990 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266606817] [2022-02-10 22:25:53,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:53,990 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-10 22:25:53,990 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:53,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-10 22:25:53,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-02-10 22:25:53,991 INFO L87 Difference]: Start difference. First operand 13146 states and 45894 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-10 22:25:54,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:54,167 INFO L93 Difference]: Finished difference Result 24829 states and 83958 transitions. [2022-02-10 22:25:54,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-10 22:25:54,167 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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 90 [2022-02-10 22:25:54,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:54,245 INFO L225 Difference]: With dead ends: 24829 [2022-02-10 22:25:54,245 INFO L226 Difference]: Without dead ends: 24478 [2022-02-10 22:25:54,245 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-02-10 22:25:54,245 INFO L934 BasicCegarLoop]: 168 mSDtfsCounter, 257 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:54,245 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [257 Valid, 394 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:25:54,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24478 states. [2022-02-10 22:25:54,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24478 to 13064. [2022-02-10 22:25:54,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13064 states, 13063 states have (on average 3.478067825155018) internal successors, (45434), 13063 states have internal predecessors, (45434), 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) [2022-02-10 22:25:54,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13064 states to 13064 states and 45434 transitions. [2022-02-10 22:25:54,795 INFO L78 Accepts]: Start accepts. Automaton has 13064 states and 45434 transitions. Word has length 90 [2022-02-10 22:25:54,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:54,796 INFO L470 AbstractCegarLoop]: Abstraction has 13064 states and 45434 transitions. [2022-02-10 22:25:54,796 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-10 22:25:54,796 INFO L276 IsEmpty]: Start isEmpty. Operand 13064 states and 45434 transitions. [2022-02-10 22:25:54,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-02-10 22:25:54,821 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:54,821 INFO L515 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] [2022-02-10 22:25:54,821 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-02-10 22:25:54,821 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:25:54,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:54,822 INFO L85 PathProgramCache]: Analyzing trace with hash -287671169, now seen corresponding path program 7 times [2022-02-10 22:25:54,822 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:54,822 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900650408] [2022-02-10 22:25:54,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:54,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:54,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:54,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:54,886 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:54,886 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900650408] [2022-02-10 22:25:54,887 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900650408] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:54,887 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:54,887 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-10 22:25:54,887 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833347218] [2022-02-10 22:25:54,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:54,887 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-10 22:25:54,888 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:54,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-10 22:25:54,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-02-10 22:25:54,888 INFO L87 Difference]: Start difference. First operand 13064 states and 45434 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-10 22:25:55,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:55,060 INFO L93 Difference]: Finished difference Result 24788 states and 83700 transitions. [2022-02-10 22:25:55,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-10 22:25:55,061 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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 90 [2022-02-10 22:25:55,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:55,133 INFO L225 Difference]: With dead ends: 24788 [2022-02-10 22:25:55,133 INFO L226 Difference]: Without dead ends: 24568 [2022-02-10 22:25:55,134 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-02-10 22:25:55,134 INFO L934 BasicCegarLoop]: 165 mSDtfsCounter, 226 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:55,135 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [226 Valid, 396 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:25:55,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24568 states. [2022-02-10 22:25:55,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24568 to 13032. [2022-02-10 22:25:55,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13032 states, 13031 states have (on average 3.4734095618141354) internal successors, (45262), 13031 states have internal predecessors, (45262), 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) [2022-02-10 22:25:55,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13032 states to 13032 states and 45262 transitions. [2022-02-10 22:25:55,706 INFO L78 Accepts]: Start accepts. Automaton has 13032 states and 45262 transitions. Word has length 90 [2022-02-10 22:25:55,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:55,706 INFO L470 AbstractCegarLoop]: Abstraction has 13032 states and 45262 transitions. [2022-02-10 22:25:55,706 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-10 22:25:55,707 INFO L276 IsEmpty]: Start isEmpty. Operand 13032 states and 45262 transitions. [2022-02-10 22:25:55,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-02-10 22:25:55,732 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:55,732 INFO L515 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] [2022-02-10 22:25:55,732 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-02-10 22:25:55,732 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:25:55,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:55,732 INFO L85 PathProgramCache]: Analyzing trace with hash 916817341, now seen corresponding path program 7 times [2022-02-10 22:25:55,732 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:55,732 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089641722] [2022-02-10 22:25:55,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:55,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:55,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:55,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:55,778 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:55,778 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089641722] [2022-02-10 22:25:55,778 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089641722] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:55,778 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:55,778 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-10 22:25:55,778 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312512194] [2022-02-10 22:25:55,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:55,779 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-10 22:25:55,779 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:55,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-10 22:25:55,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-02-10 22:25:55,779 INFO L87 Difference]: Start difference. First operand 13032 states and 45262 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-10 22:25:55,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:55,962 INFO L93 Difference]: Finished difference Result 22548 states and 76121 transitions. [2022-02-10 22:25:55,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-10 22:25:55,962 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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 90 [2022-02-10 22:25:55,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:56,034 INFO L225 Difference]: With dead ends: 22548 [2022-02-10 22:25:56,034 INFO L226 Difference]: Without dead ends: 22548 [2022-02-10 22:25:56,034 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-02-10 22:25:56,035 INFO L934 BasicCegarLoop]: 220 mSDtfsCounter, 177 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:56,035 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [177 Valid, 466 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:25:56,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22548 states. [2022-02-10 22:25:56,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22548 to 12804. [2022-02-10 22:25:56,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12804 states, 12803 states have (on average 3.4556744513004762) internal successors, (44243), 12803 states have internal predecessors, (44243), 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) [2022-02-10 22:25:56,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12804 states to 12804 states and 44243 transitions. [2022-02-10 22:25:56,472 INFO L78 Accepts]: Start accepts. Automaton has 12804 states and 44243 transitions. Word has length 90 [2022-02-10 22:25:56,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:56,472 INFO L470 AbstractCegarLoop]: Abstraction has 12804 states and 44243 transitions. [2022-02-10 22:25:56,472 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-10 22:25:56,480 INFO L276 IsEmpty]: Start isEmpty. Operand 12804 states and 44243 transitions. [2022-02-10 22:25:56,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-02-10 22:25:56,504 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:56,504 INFO L515 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] [2022-02-10 22:25:56,504 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-02-10 22:25:56,505 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:25:56,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:56,505 INFO L85 PathProgramCache]: Analyzing trace with hash 558413823, now seen corresponding path program 8 times [2022-02-10 22:25:56,505 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:56,505 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787467696] [2022-02-10 22:25:56,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:56,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:56,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:56,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:56,552 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:56,553 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787467696] [2022-02-10 22:25:56,553 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1787467696] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:56,553 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:56,553 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-10 22:25:56,553 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717596324] [2022-02-10 22:25:56,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:56,553 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-10 22:25:56,553 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:56,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-10 22:25:56,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-02-10 22:25:56,554 INFO L87 Difference]: Start difference. First operand 12804 states and 44243 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-10 22:25:56,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:56,935 INFO L93 Difference]: Finished difference Result 22172 states and 74571 transitions. [2022-02-10 22:25:56,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-10 22:25:56,935 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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 90 [2022-02-10 22:25:56,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:56,996 INFO L225 Difference]: With dead ends: 22172 [2022-02-10 22:25:56,996 INFO L226 Difference]: Without dead ends: 22172 [2022-02-10 22:25:56,996 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-02-10 22:25:56,996 INFO L934 BasicCegarLoop]: 217 mSDtfsCounter, 166 mSDsluCounter, 388 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 578 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:56,997 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [166 Valid, 578 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:25:57,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22172 states. [2022-02-10 22:25:57,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22172 to 12548. [2022-02-10 22:25:57,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12548 states, 12547 states have (on average 3.4369171913604846) internal successors, (43123), 12547 states have internal predecessors, (43123), 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) [2022-02-10 22:25:57,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12548 states to 12548 states and 43123 transitions. [2022-02-10 22:25:57,311 INFO L78 Accepts]: Start accepts. Automaton has 12548 states and 43123 transitions. Word has length 90 [2022-02-10 22:25:57,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:57,311 INFO L470 AbstractCegarLoop]: Abstraction has 12548 states and 43123 transitions. [2022-02-10 22:25:57,311 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-02-10 22:25:57,311 INFO L276 IsEmpty]: Start isEmpty. Operand 12548 states and 43123 transitions. [2022-02-10 22:25:57,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-02-10 22:25:57,335 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:57,335 INFO L515 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] [2022-02-10 22:25:57,336 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-02-10 22:25:57,336 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:25:57,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:57,336 INFO L85 PathProgramCache]: Analyzing trace with hash -987533212, now seen corresponding path program 1 times [2022-02-10 22:25:57,336 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:57,336 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296676421] [2022-02-10 22:25:57,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:57,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:57,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:57,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:57,394 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:57,394 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296676421] [2022-02-10 22:25:57,394 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296676421] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:57,394 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:57,394 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-10 22:25:57,394 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94654261] [2022-02-10 22:25:57,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:57,394 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-10 22:25:57,394 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:57,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-10 22:25:57,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-02-10 22:25:57,395 INFO L87 Difference]: Start difference. First operand 12548 states and 43123 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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) [2022-02-10 22:25:57,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:57,763 INFO L93 Difference]: Finished difference Result 18550 states and 62658 transitions. [2022-02-10 22:25:57,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-02-10 22:25:57,764 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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 [2022-02-10 22:25:57,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:57,807 INFO L225 Difference]: With dead ends: 18550 [2022-02-10 22:25:57,807 INFO L226 Difference]: Without dead ends: 16028 [2022-02-10 22:25:57,807 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=184, Invalid=572, Unknown=0, NotChecked=0, Total=756 [2022-02-10 22:25:57,808 INFO L934 BasicCegarLoop]: 269 mSDtfsCounter, 463 mSDsluCounter, 1465 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 463 SdHoareTripleChecker+Valid, 1640 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:57,808 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [463 Valid, 1640 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:25:57,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16028 states. [2022-02-10 22:25:58,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16028 to 12535. [2022-02-10 22:25:58,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12535 states, 12534 states have (on average 3.4193393968405936) internal successors, (42858), 12534 states have internal predecessors, (42858), 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) [2022-02-10 22:25:58,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12535 states to 12535 states and 42858 transitions. [2022-02-10 22:25:58,087 INFO L78 Accepts]: Start accepts. Automaton has 12535 states and 42858 transitions. Word has length 92 [2022-02-10 22:25:58,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:58,087 INFO L470 AbstractCegarLoop]: Abstraction has 12535 states and 42858 transitions. [2022-02-10 22:25:58,087 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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) [2022-02-10 22:25:58,087 INFO L276 IsEmpty]: Start isEmpty. Operand 12535 states and 42858 transitions. [2022-02-10 22:25:58,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-02-10 22:25:58,166 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:58,166 INFO L515 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] [2022-02-10 22:25:58,166 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-02-10 22:25:58,167 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:25:58,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:58,167 INFO L85 PathProgramCache]: Analyzing trace with hash 1467584088, now seen corresponding path program 2 times [2022-02-10 22:25:58,167 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:58,167 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526320425] [2022-02-10 22:25:58,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:58,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:58,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:58,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:58,239 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:58,239 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526320425] [2022-02-10 22:25:58,239 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1526320425] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:58,239 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:58,239 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-10 22:25:58,239 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138830735] [2022-02-10 22:25:58,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:58,239 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-10 22:25:58,239 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:58,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-10 22:25:58,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-02-10 22:25:58,240 INFO L87 Difference]: Start difference. First operand 12535 states and 42858 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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) [2022-02-10 22:25:58,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:58,581 INFO L93 Difference]: Finished difference Result 17051 states and 58063 transitions. [2022-02-10 22:25:58,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-02-10 22:25:58,582 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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 [2022-02-10 22:25:58,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:58,625 INFO L225 Difference]: With dead ends: 17051 [2022-02-10 22:25:58,625 INFO L226 Difference]: Without dead ends: 15373 [2022-02-10 22:25:58,626 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=155, Invalid=547, Unknown=0, NotChecked=0, Total=702 [2022-02-10 22:25:58,626 INFO L934 BasicCegarLoop]: 251 mSDtfsCounter, 359 mSDsluCounter, 1619 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 359 SdHoareTripleChecker+Valid, 1773 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:58,626 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [359 Valid, 1773 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:25:58,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15373 states. [2022-02-10 22:25:58,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15373 to 12582. [2022-02-10 22:25:58,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12582 states, 12581 states have (on average 3.416342103171449) internal successors, (42981), 12581 states have internal predecessors, (42981), 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) [2022-02-10 22:25:58,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12582 states to 12582 states and 42981 transitions. [2022-02-10 22:25:58,945 INFO L78 Accepts]: Start accepts. Automaton has 12582 states and 42981 transitions. Word has length 92 [2022-02-10 22:25:58,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:58,945 INFO L470 AbstractCegarLoop]: Abstraction has 12582 states and 42981 transitions. [2022-02-10 22:25:58,945 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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) [2022-02-10 22:25:58,945 INFO L276 IsEmpty]: Start isEmpty. Operand 12582 states and 42981 transitions. [2022-02-10 22:25:58,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-02-10 22:25:58,969 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:58,969 INFO L515 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] [2022-02-10 22:25:58,969 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-02-10 22:25:58,969 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:25:58,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:58,969 INFO L85 PathProgramCache]: Analyzing trace with hash -522084928, now seen corresponding path program 3 times [2022-02-10 22:25:58,969 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:58,969 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825284694] [2022-02-10 22:25:58,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:58,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:58,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:59,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:59,029 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:59,029 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825284694] [2022-02-10 22:25:59,029 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825284694] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:59,029 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:59,030 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-10 22:25:59,030 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985188358] [2022-02-10 22:25:59,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:59,030 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-10 22:25:59,030 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:59,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-10 22:25:59,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-02-10 22:25:59,030 INFO L87 Difference]: Start difference. First operand 12582 states and 42981 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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) [2022-02-10 22:25:59,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:59,336 INFO L93 Difference]: Finished difference Result 16284 states and 55407 transitions. [2022-02-10 22:25:59,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-02-10 22:25:59,337 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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 [2022-02-10 22:25:59,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:59,376 INFO L225 Difference]: With dead ends: 16284 [2022-02-10 22:25:59,376 INFO L226 Difference]: Without dead ends: 14847 [2022-02-10 22:25:59,377 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=118, Invalid=344, Unknown=0, NotChecked=0, Total=462 [2022-02-10 22:25:59,377 INFO L934 BasicCegarLoop]: 241 mSDtfsCounter, 226 mSDsluCounter, 1676 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 1825 SdHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:59,377 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [226 Valid, 1825 Invalid, 240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:25:59,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14847 states. [2022-02-10 22:25:59,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14847 to 12629. [2022-02-10 22:25:59,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12629 states, 12628 states have (on average 3.413367120684194) internal successors, (43104), 12628 states have internal predecessors, (43104), 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) [2022-02-10 22:25:59,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12629 states to 12629 states and 43104 transitions. [2022-02-10 22:25:59,645 INFO L78 Accepts]: Start accepts. Automaton has 12629 states and 43104 transitions. Word has length 92 [2022-02-10 22:25:59,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:59,645 INFO L470 AbstractCegarLoop]: Abstraction has 12629 states and 43104 transitions. [2022-02-10 22:25:59,645 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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) [2022-02-10 22:25:59,645 INFO L276 IsEmpty]: Start isEmpty. Operand 12629 states and 43104 transitions. [2022-02-10 22:25:59,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-02-10 22:25:59,668 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:59,668 INFO L515 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] [2022-02-10 22:25:59,668 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-02-10 22:25:59,668 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:25:59,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:59,669 INFO L85 PathProgramCache]: Analyzing trace with hash 400965018, now seen corresponding path program 4 times [2022-02-10 22:25:59,669 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:59,669 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863247944] [2022-02-10 22:25:59,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:59,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:59,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:59,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:59,760 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:59,760 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863247944] [2022-02-10 22:25:59,760 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1863247944] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:59,760 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:59,760 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-10 22:25:59,760 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638566564] [2022-02-10 22:25:59,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:59,760 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-10 22:25:59,760 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:59,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-10 22:25:59,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-02-10 22:25:59,761 INFO L87 Difference]: Start difference. First operand 12629 states and 43104 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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) [2022-02-10 22:25:59,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:59,997 INFO L93 Difference]: Finished difference Result 16005 states and 54393 transitions. [2022-02-10 22:25:59,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-10 22:25:59,998 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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 [2022-02-10 22:25:59,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:00,033 INFO L225 Difference]: With dead ends: 16005 [2022-02-10 22:26:00,033 INFO L226 Difference]: Without dead ends: 14304 [2022-02-10 22:26:00,034 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=393, Unknown=0, NotChecked=0, Total=506 [2022-02-10 22:26:00,034 INFO L934 BasicCegarLoop]: 242 mSDtfsCounter, 274 mSDsluCounter, 1570 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 1721 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:00,034 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [274 Valid, 1721 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:26:00,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14304 states. [2022-02-10 22:26:00,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14304 to 12368. [2022-02-10 22:26:00,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12368 states, 12367 states have (on average 3.4186140535295544) internal successors, (42278), 12367 states have internal predecessors, (42278), 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) [2022-02-10 22:26:00,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12368 states to 12368 states and 42278 transitions. [2022-02-10 22:26:00,360 INFO L78 Accepts]: Start accepts. Automaton has 12368 states and 42278 transitions. Word has length 92 [2022-02-10 22:26:00,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:00,360 INFO L470 AbstractCegarLoop]: Abstraction has 12368 states and 42278 transitions. [2022-02-10 22:26:00,360 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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) [2022-02-10 22:26:00,360 INFO L276 IsEmpty]: Start isEmpty. Operand 12368 states and 42278 transitions. [2022-02-10 22:26:00,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-02-10 22:26:00,382 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:00,382 INFO L515 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] [2022-02-10 22:26:00,383 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-02-10 22:26:00,383 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:26:00,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:00,383 INFO L85 PathProgramCache]: Analyzing trace with hash 2124170660, now seen corresponding path program 5 times [2022-02-10 22:26:00,383 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:00,383 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822038878] [2022-02-10 22:26:00,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:00,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:00,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:00,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:00,448 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:00,448 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822038878] [2022-02-10 22:26:00,448 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822038878] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:00,448 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:00,448 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-10 22:26:00,448 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135847407] [2022-02-10 22:26:00,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:00,448 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-10 22:26:00,448 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:00,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-10 22:26:00,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-02-10 22:26:00,449 INFO L87 Difference]: Start difference. First operand 12368 states and 42278 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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) [2022-02-10 22:26:00,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:00,711 INFO L93 Difference]: Finished difference Result 17057 states and 58133 transitions. [2022-02-10 22:26:00,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-02-10 22:26:00,711 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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 [2022-02-10 22:26:00,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:00,750 INFO L225 Difference]: With dead ends: 17057 [2022-02-10 22:26:00,750 INFO L226 Difference]: Without dead ends: 15385 [2022-02-10 22:26:00,751 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=138, Invalid=414, Unknown=0, NotChecked=0, Total=552 [2022-02-10 22:26:00,751 INFO L934 BasicCegarLoop]: 232 mSDtfsCounter, 298 mSDsluCounter, 1305 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 298 SdHoareTripleChecker+Valid, 1465 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:00,751 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [298 Valid, 1465 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:26:00,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15385 states. [2022-02-10 22:26:00,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15385 to 12462. [2022-02-10 22:26:01,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12462 states, 12461 states have (on average 3.4163389776101436) internal successors, (42571), 12461 states have internal predecessors, (42571), 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) [2022-02-10 22:26:01,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12462 states to 12462 states and 42571 transitions. [2022-02-10 22:26:01,177 INFO L78 Accepts]: Start accepts. Automaton has 12462 states and 42571 transitions. Word has length 92 [2022-02-10 22:26:01,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:01,178 INFO L470 AbstractCegarLoop]: Abstraction has 12462 states and 42571 transitions. [2022-02-10 22:26:01,178 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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) [2022-02-10 22:26:01,178 INFO L276 IsEmpty]: Start isEmpty. Operand 12462 states and 42571 transitions. [2022-02-10 22:26:01,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-02-10 22:26:01,202 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:01,202 INFO L515 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] [2022-02-10 22:26:01,202 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-02-10 22:26:01,202 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:26:01,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:01,202 INFO L85 PathProgramCache]: Analyzing trace with hash 247756208, now seen corresponding path program 6 times [2022-02-10 22:26:01,202 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:01,202 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473133895] [2022-02-10 22:26:01,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:01,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:01,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:01,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:01,275 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:01,275 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473133895] [2022-02-10 22:26:01,275 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473133895] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:01,275 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:01,276 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-10 22:26:01,276 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630450725] [2022-02-10 22:26:01,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:01,276 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-10 22:26:01,276 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:01,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-10 22:26:01,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-02-10 22:26:01,276 INFO L87 Difference]: Start difference. First operand 12462 states and 42571 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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) [2022-02-10 22:26:01,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:01,556 INFO L93 Difference]: Finished difference Result 16728 states and 57037 transitions. [2022-02-10 22:26:01,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-10 22:26:01,556 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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 [2022-02-10 22:26:01,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:01,596 INFO L225 Difference]: With dead ends: 16728 [2022-02-10 22:26:01,597 INFO L226 Difference]: Without dead ends: 15291 [2022-02-10 22:26:01,597 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=117, Invalid=389, Unknown=0, NotChecked=0, Total=506 [2022-02-10 22:26:01,597 INFO L934 BasicCegarLoop]: 227 mSDtfsCounter, 247 mSDsluCounter, 1598 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 1738 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:01,597 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [247 Valid, 1738 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:26:01,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15291 states. [2022-02-10 22:26:01,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15291 to 12509. [2022-02-10 22:26:01,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12509 states, 12508 states have (on average 3.4133354653022066) internal successors, (42694), 12508 states have internal predecessors, (42694), 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) [2022-02-10 22:26:01,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12509 states to 12509 states and 42694 transitions. [2022-02-10 22:26:01,987 INFO L78 Accepts]: Start accepts. Automaton has 12509 states and 42694 transitions. Word has length 92 [2022-02-10 22:26:01,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:01,987 INFO L470 AbstractCegarLoop]: Abstraction has 12509 states and 42694 transitions. [2022-02-10 22:26:01,988 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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) [2022-02-10 22:26:01,988 INFO L276 IsEmpty]: Start isEmpty. Operand 12509 states and 42694 transitions. [2022-02-10 22:26:02,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-02-10 22:26:02,011 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:02,011 INFO L515 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] [2022-02-10 22:26:02,011 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-02-10 22:26:02,011 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:26:02,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:02,012 INFO L85 PathProgramCache]: Analyzing trace with hash 1170806154, now seen corresponding path program 7 times [2022-02-10 22:26:02,012 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:02,012 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6400041] [2022-02-10 22:26:02,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:02,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:02,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:02,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:02,075 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:02,076 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6400041] [2022-02-10 22:26:02,076 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6400041] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:02,076 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:02,076 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-10 22:26:02,076 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260141907] [2022-02-10 22:26:02,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:02,076 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-10 22:26:02,076 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:02,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-10 22:26:02,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-02-10 22:26:02,077 INFO L87 Difference]: Start difference. First operand 12509 states and 42694 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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) [2022-02-10 22:26:02,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:02,348 INFO L93 Difference]: Finished difference Result 16449 states and 56023 transitions. [2022-02-10 22:26:02,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-10 22:26:02,349 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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 [2022-02-10 22:26:02,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:02,388 INFO L225 Difference]: With dead ends: 16449 [2022-02-10 22:26:02,388 INFO L226 Difference]: Without dead ends: 14915 [2022-02-10 22:26:02,388 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=100, Invalid=320, Unknown=0, NotChecked=0, Total=420 [2022-02-10 22:26:02,389 INFO L934 BasicCegarLoop]: 229 mSDtfsCounter, 229 mSDsluCounter, 1666 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 1799 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:02,389 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [229 Valid, 1799 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:26:02,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14915 states. [2022-02-10 22:26:02,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14915 to 12415. [2022-02-10 22:26:02,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12415 states, 12414 states have (on average 3.4155791847913646) internal successors, (42401), 12414 states have internal predecessors, (42401), 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) [2022-02-10 22:26:02,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12415 states to 12415 states and 42401 transitions. [2022-02-10 22:26:02,768 INFO L78 Accepts]: Start accepts. Automaton has 12415 states and 42401 transitions. Word has length 92 [2022-02-10 22:26:02,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:02,769 INFO L470 AbstractCegarLoop]: Abstraction has 12415 states and 42401 transitions. [2022-02-10 22:26:02,769 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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) [2022-02-10 22:26:02,769 INFO L276 IsEmpty]: Start isEmpty. Operand 12415 states and 42401 transitions. [2022-02-10 22:26:02,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-02-10 22:26:02,790 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:02,790 INFO L515 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] [2022-02-10 22:26:02,790 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-02-10 22:26:02,790 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:26:02,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:02,791 INFO L85 PathProgramCache]: Analyzing trace with hash -1784264254, now seen corresponding path program 8 times [2022-02-10 22:26:02,791 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:02,791 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993138190] [2022-02-10 22:26:02,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:02,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:02,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:02,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:02,874 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:02,874 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993138190] [2022-02-10 22:26:02,874 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993138190] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:02,874 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:02,874 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-10 22:26:02,875 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550224936] [2022-02-10 22:26:02,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:02,875 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-10 22:26:02,875 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:02,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-10 22:26:02,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-02-10 22:26:02,875 INFO L87 Difference]: Start difference. First operand 12415 states and 42401 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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) [2022-02-10 22:26:03,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:03,136 INFO L93 Difference]: Finished difference Result 16931 states and 57606 transitions. [2022-02-10 22:26:03,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-10 22:26:03,136 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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 [2022-02-10 22:26:03,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:03,174 INFO L225 Difference]: With dead ends: 16931 [2022-02-10 22:26:03,174 INFO L226 Difference]: Without dead ends: 15253 [2022-02-10 22:26:03,174 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=141, Invalid=459, Unknown=0, NotChecked=0, Total=600 [2022-02-10 22:26:03,175 INFO L934 BasicCegarLoop]: 234 mSDtfsCounter, 316 mSDsluCounter, 1543 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 316 SdHoareTripleChecker+Valid, 1684 SdHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:03,175 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [316 Valid, 1684 Invalid, 240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:26:03,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15253 states. [2022-02-10 22:26:03,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15253 to 12462. [2022-02-10 22:26:03,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12462 states, 12461 states have (on average 3.412567209694246) internal successors, (42524), 12461 states have internal predecessors, (42524), 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) [2022-02-10 22:26:03,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12462 states to 12462 states and 42524 transitions. [2022-02-10 22:26:03,428 INFO L78 Accepts]: Start accepts. Automaton has 12462 states and 42524 transitions. Word has length 92 [2022-02-10 22:26:03,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:03,428 INFO L470 AbstractCegarLoop]: Abstraction has 12462 states and 42524 transitions. [2022-02-10 22:26:03,428 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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) [2022-02-10 22:26:03,428 INFO L276 IsEmpty]: Start isEmpty. Operand 12462 states and 42524 transitions. [2022-02-10 22:26:03,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-02-10 22:26:03,612 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:03,612 INFO L515 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] [2022-02-10 22:26:03,612 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-02-10 22:26:03,613 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:26:03,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:03,613 INFO L85 PathProgramCache]: Analyzing trace with hash 521034026, now seen corresponding path program 9 times [2022-02-10 22:26:03,613 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:03,613 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817908327] [2022-02-10 22:26:03,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:03,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:03,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:03,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:03,683 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:03,683 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817908327] [2022-02-10 22:26:03,683 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817908327] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:03,683 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:03,683 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-10 22:26:03,683 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590564679] [2022-02-10 22:26:03,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:03,684 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-10 22:26:03,684 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:03,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-10 22:26:03,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-02-10 22:26:03,684 INFO L87 Difference]: Start difference. First operand 12462 states and 42524 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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) [2022-02-10 22:26:03,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:03,958 INFO L93 Difference]: Finished difference Result 16305 states and 55460 transitions. [2022-02-10 22:26:03,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-10 22:26:03,958 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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 [2022-02-10 22:26:03,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:03,996 INFO L225 Difference]: With dead ends: 16305 [2022-02-10 22:26:03,996 INFO L226 Difference]: Without dead ends: 14868 [2022-02-10 22:26:03,997 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=110, Invalid=352, Unknown=0, NotChecked=0, Total=462 [2022-02-10 22:26:03,997 INFO L934 BasicCegarLoop]: 225 mSDtfsCounter, 233 mSDsluCounter, 1589 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 1727 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:03,997 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [233 Valid, 1727 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:26:04,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14868 states. [2022-02-10 22:26:04,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14868 to 12509. [2022-02-10 22:26:04,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12509 states, 12508 states have (on average 3.4095778701630954) internal successors, (42647), 12508 states have internal predecessors, (42647), 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) [2022-02-10 22:26:04,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12509 states to 12509 states and 42647 transitions. [2022-02-10 22:26:04,287 INFO L78 Accepts]: Start accepts. Automaton has 12509 states and 42647 transitions. Word has length 92 [2022-02-10 22:26:04,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:04,288 INFO L470 AbstractCegarLoop]: Abstraction has 12509 states and 42647 transitions. [2022-02-10 22:26:04,288 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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) [2022-02-10 22:26:04,288 INFO L276 IsEmpty]: Start isEmpty. Operand 12509 states and 42647 transitions. [2022-02-10 22:26:04,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-02-10 22:26:04,310 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:04,310 INFO L515 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] [2022-02-10 22:26:04,310 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-02-10 22:26:04,311 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:26:04,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:04,311 INFO L85 PathProgramCache]: Analyzing trace with hash 1444083972, now seen corresponding path program 10 times [2022-02-10 22:26:04,311 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:04,311 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894763142] [2022-02-10 22:26:04,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:04,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:04,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:04,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:04,427 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:04,427 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894763142] [2022-02-10 22:26:04,427 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894763142] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:04,427 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:04,427 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-10 22:26:04,427 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481190244] [2022-02-10 22:26:04,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:04,428 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-10 22:26:04,428 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:04,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-10 22:26:04,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-02-10 22:26:04,428 INFO L87 Difference]: Start difference. First operand 12509 states and 42647 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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) [2022-02-10 22:26:04,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:04,683 INFO L93 Difference]: Finished difference Result 15885 states and 53936 transitions. [2022-02-10 22:26:04,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-10 22:26:04,683 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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 [2022-02-10 22:26:04,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:04,721 INFO L225 Difference]: With dead ends: 15885 [2022-02-10 22:26:04,722 INFO L226 Difference]: Without dead ends: 14137 [2022-02-10 22:26:04,722 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=105, Invalid=357, Unknown=0, NotChecked=0, Total=462 [2022-02-10 22:26:04,722 INFO L934 BasicCegarLoop]: 225 mSDtfsCounter, 246 mSDsluCounter, 1630 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 1760 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:04,722 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [246 Valid, 1760 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:26:04,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14137 states. [2022-02-10 22:26:04,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14137 to 12201. [2022-02-10 22:26:04,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12201 states, 12200 states have (on average 3.4178688524590166) internal successors, (41698), 12200 states have internal predecessors, (41698), 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) [2022-02-10 22:26:04,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12201 states to 12201 states and 41698 transitions. [2022-02-10 22:26:04,960 INFO L78 Accepts]: Start accepts. Automaton has 12201 states and 41698 transitions. Word has length 92 [2022-02-10 22:26:04,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:04,960 INFO L470 AbstractCegarLoop]: Abstraction has 12201 states and 41698 transitions. [2022-02-10 22:26:04,961 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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) [2022-02-10 22:26:04,961 INFO L276 IsEmpty]: Start isEmpty. Operand 12201 states and 41698 transitions. [2022-02-10 22:26:04,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-02-10 22:26:04,980 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:04,981 INFO L515 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] [2022-02-10 22:26:04,981 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-02-10 22:26:04,981 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:26:04,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:04,981 INFO L85 PathProgramCache]: Analyzing trace with hash -206354540, now seen corresponding path program 11 times [2022-02-10 22:26:04,981 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:04,981 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479462996] [2022-02-10 22:26:04,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:04,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:04,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:05,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:05,044 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:05,044 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479462996] [2022-02-10 22:26:05,044 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479462996] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:05,045 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:05,045 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-10 22:26:05,045 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458661449] [2022-02-10 22:26:05,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:05,045 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-10 22:26:05,045 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:05,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-10 22:26:05,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-02-10 22:26:05,045 INFO L87 Difference]: Start difference. First operand 12201 states and 41698 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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) [2022-02-10 22:26:05,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:05,317 INFO L93 Difference]: Finished difference Result 17089 states and 58354 transitions. [2022-02-10 22:26:05,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-10 22:26:05,317 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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 [2022-02-10 22:26:05,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:05,421 INFO L225 Difference]: With dead ends: 17089 [2022-02-10 22:26:05,421 INFO L226 Difference]: Without dead ends: 15417 [2022-02-10 22:26:05,421 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=141, Invalid=459, Unknown=0, NotChecked=0, Total=600 [2022-02-10 22:26:05,422 INFO L934 BasicCegarLoop]: 227 mSDtfsCounter, 340 mSDsluCounter, 1494 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 340 SdHoareTripleChecker+Valid, 1634 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:05,422 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [340 Valid, 1634 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:26:05,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15417 states. [2022-02-10 22:26:05,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15417 to 12283. [2022-02-10 22:26:05,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12283 states, 12282 states have (on average 3.4152418172936003) internal successors, (41946), 12282 states have internal predecessors, (41946), 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) [2022-02-10 22:26:05,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12283 states to 12283 states and 41946 transitions. [2022-02-10 22:26:05,650 INFO L78 Accepts]: Start accepts. Automaton has 12283 states and 41946 transitions. Word has length 92 [2022-02-10 22:26:05,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:05,650 INFO L470 AbstractCegarLoop]: Abstraction has 12283 states and 41946 transitions. [2022-02-10 22:26:05,650 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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) [2022-02-10 22:26:05,650 INFO L276 IsEmpty]: Start isEmpty. Operand 12283 states and 41946 transitions. [2022-02-10 22:26:05,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-02-10 22:26:05,670 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:05,670 INFO L515 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] [2022-02-10 22:26:05,670 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-02-10 22:26:05,670 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:26:05,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:05,671 INFO L85 PathProgramCache]: Analyzing trace with hash -2082768992, now seen corresponding path program 12 times [2022-02-10 22:26:05,671 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:05,671 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855591148] [2022-02-10 22:26:05,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:05,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:05,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:05,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:05,751 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:05,751 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855591148] [2022-02-10 22:26:05,751 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855591148] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:05,751 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:05,751 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-10 22:26:05,751 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861843787] [2022-02-10 22:26:05,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:05,752 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-10 22:26:05,752 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:05,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-10 22:26:05,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-02-10 22:26:05,752 INFO L87 Difference]: Start difference. First operand 12283 states and 41946 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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) [2022-02-10 22:26:06,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:06,023 INFO L93 Difference]: Finished difference Result 16619 states and 56748 transitions. [2022-02-10 22:26:06,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-10 22:26:06,023 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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 [2022-02-10 22:26:06,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:06,060 INFO L225 Difference]: With dead ends: 16619 [2022-02-10 22:26:06,060 INFO L226 Difference]: Without dead ends: 15182 [2022-02-10 22:26:06,060 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=105, Invalid=357, Unknown=0, NotChecked=0, Total=462 [2022-02-10 22:26:06,061 INFO L934 BasicCegarLoop]: 225 mSDtfsCounter, 270 mSDsluCounter, 1478 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 1617 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:06,061 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [270 Valid, 1617 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:26:06,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15182 states. [2022-02-10 22:26:06,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15182 to 12330. [2022-02-10 22:26:06,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12330 states, 12329 states have (on average 3.4121988806878094) internal successors, (42069), 12329 states have internal predecessors, (42069), 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) [2022-02-10 22:26:06,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12330 states to 12330 states and 42069 transitions. [2022-02-10 22:26:06,437 INFO L78 Accepts]: Start accepts. Automaton has 12330 states and 42069 transitions. Word has length 92 [2022-02-10 22:26:06,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:06,438 INFO L470 AbstractCegarLoop]: Abstraction has 12330 states and 42069 transitions. [2022-02-10 22:26:06,438 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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) [2022-02-10 22:26:06,438 INFO L276 IsEmpty]: Start isEmpty. Operand 12330 states and 42069 transitions. [2022-02-10 22:26:06,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-02-10 22:26:06,458 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:06,458 INFO L515 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] [2022-02-10 22:26:06,458 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-02-10 22:26:06,458 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:26:06,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:06,459 INFO L85 PathProgramCache]: Analyzing trace with hash -1159719046, now seen corresponding path program 13 times [2022-02-10 22:26:06,459 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:06,459 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561610126] [2022-02-10 22:26:06,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:06,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:06,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:06,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:06,520 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:06,520 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561610126] [2022-02-10 22:26:06,520 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561610126] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:06,520 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:06,520 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-10 22:26:06,520 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172402962] [2022-02-10 22:26:06,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:06,521 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-10 22:26:06,521 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:06,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-10 22:26:06,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-02-10 22:26:06,521 INFO L87 Difference]: Start difference. First operand 12330 states and 42069 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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) [2022-02-10 22:26:06,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:06,777 INFO L93 Difference]: Finished difference Result 16340 states and 55734 transitions. [2022-02-10 22:26:06,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-10 22:26:06,777 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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 [2022-02-10 22:26:06,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:06,810 INFO L225 Difference]: With dead ends: 16340 [2022-02-10 22:26:06,810 INFO L226 Difference]: Without dead ends: 14806 [2022-02-10 22:26:06,810 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=110, Invalid=352, Unknown=0, NotChecked=0, Total=462 [2022-02-10 22:26:06,811 INFO L934 BasicCegarLoop]: 226 mSDtfsCounter, 206 mSDsluCounter, 1508 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 1641 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:06,811 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [206 Valid, 1641 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:26:06,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14806 states. [2022-02-10 22:26:06,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14806 to 12236. [2022-02-10 22:26:06,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12236 states, 12235 states have (on average 3.4144666939109114) internal successors, (41776), 12235 states have internal predecessors, (41776), 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) [2022-02-10 22:26:07,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12236 states to 12236 states and 41776 transitions. [2022-02-10 22:26:07,021 INFO L78 Accepts]: Start accepts. Automaton has 12236 states and 41776 transitions. Word has length 92 [2022-02-10 22:26:07,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:07,021 INFO L470 AbstractCegarLoop]: Abstraction has 12236 states and 41776 transitions. [2022-02-10 22:26:07,021 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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) [2022-02-10 22:26:07,021 INFO L276 IsEmpty]: Start isEmpty. Operand 12236 states and 41776 transitions. [2022-02-10 22:26:07,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-02-10 22:26:07,041 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:07,041 INFO L515 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] [2022-02-10 22:26:07,041 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-02-10 22:26:07,041 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:26:07,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:07,041 INFO L85 PathProgramCache]: Analyzing trace with hash 180177842, now seen corresponding path program 14 times [2022-02-10 22:26:07,041 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:07,041 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921470011] [2022-02-10 22:26:07,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:07,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:07,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:07,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:07,119 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:07,119 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921470011] [2022-02-10 22:26:07,119 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921470011] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:07,119 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:07,119 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-10 22:26:07,119 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338250185] [2022-02-10 22:26:07,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:07,119 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-10 22:26:07,119 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:07,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-10 22:26:07,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-02-10 22:26:07,120 INFO L87 Difference]: Start difference. First operand 12236 states and 41776 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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) [2022-02-10 22:26:07,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:07,428 INFO L93 Difference]: Finished difference Result 16444 states and 55969 transitions. [2022-02-10 22:26:07,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-02-10 22:26:07,428 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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 [2022-02-10 22:26:07,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:07,464 INFO L225 Difference]: With dead ends: 16444 [2022-02-10 22:26:07,464 INFO L226 Difference]: Without dead ends: 14766 [2022-02-10 22:26:07,464 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=138, Invalid=414, Unknown=0, NotChecked=0, Total=552 [2022-02-10 22:26:07,465 INFO L934 BasicCegarLoop]: 229 mSDtfsCounter, 273 mSDsluCounter, 1415 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 273 SdHoareTripleChecker+Valid, 1556 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:07,465 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [273 Valid, 1556 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:26:07,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14766 states. [2022-02-10 22:26:07,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14766 to 12283. [2022-02-10 22:26:07,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12283 states, 12282 states have (on average 3.4114150789773654) internal successors, (41899), 12282 states have internal predecessors, (41899), 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) [2022-02-10 22:26:07,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12283 states to 12283 states and 41899 transitions. [2022-02-10 22:26:07,704 INFO L78 Accepts]: Start accepts. Automaton has 12283 states and 41899 transitions. Word has length 92 [2022-02-10 22:26:07,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:07,704 INFO L470 AbstractCegarLoop]: Abstraction has 12283 states and 41899 transitions. [2022-02-10 22:26:07,704 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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) [2022-02-10 22:26:07,704 INFO L276 IsEmpty]: Start isEmpty. Operand 12283 states and 41899 transitions. [2022-02-10 22:26:07,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-02-10 22:26:07,725 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:07,725 INFO L515 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] [2022-02-10 22:26:07,725 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-02-10 22:26:07,725 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:26:07,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:07,726 INFO L85 PathProgramCache]: Analyzing trace with hash -1809491174, now seen corresponding path program 15 times [2022-02-10 22:26:07,726 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:07,726 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775576664] [2022-02-10 22:26:07,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:07,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:07,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:07,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:07,796 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:07,796 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775576664] [2022-02-10 22:26:07,796 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1775576664] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:07,796 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:07,796 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-10 22:26:07,796 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194563745] [2022-02-10 22:26:07,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:07,797 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-10 22:26:07,797 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:07,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-10 22:26:07,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-02-10 22:26:07,797 INFO L87 Difference]: Start difference. First operand 12283 states and 41899 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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) [2022-02-10 22:26:08,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:08,040 INFO L93 Difference]: Finished difference Result 16172 states and 55089 transitions. [2022-02-10 22:26:08,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-10 22:26:08,040 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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 [2022-02-10 22:26:08,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:08,076 INFO L225 Difference]: With dead ends: 16172 [2022-02-10 22:26:08,076 INFO L226 Difference]: Without dead ends: 14735 [2022-02-10 22:26:08,076 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=100, Invalid=320, Unknown=0, NotChecked=0, Total=420 [2022-02-10 22:26:08,076 INFO L934 BasicCegarLoop]: 222 mSDtfsCounter, 255 mSDsluCounter, 1469 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 1605 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:08,076 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [255 Valid, 1605 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:26:08,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14735 states. [2022-02-10 22:26:08,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14735 to 12330. [2022-02-10 22:26:08,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12330 states, 12329 states have (on average 3.408386730472869) internal successors, (42022), 12329 states have internal predecessors, (42022), 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) [2022-02-10 22:26:08,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12330 states to 12330 states and 42022 transitions. [2022-02-10 22:26:08,452 INFO L78 Accepts]: Start accepts. Automaton has 12330 states and 42022 transitions. Word has length 92 [2022-02-10 22:26:08,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:08,452 INFO L470 AbstractCegarLoop]: Abstraction has 12330 states and 42022 transitions. [2022-02-10 22:26:08,452 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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) [2022-02-10 22:26:08,452 INFO L276 IsEmpty]: Start isEmpty. Operand 12330 states and 42022 transitions. [2022-02-10 22:26:08,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-02-10 22:26:08,475 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:08,476 INFO L515 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] [2022-02-10 22:26:08,476 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-02-10 22:26:08,476 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:26:08,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:08,476 INFO L85 PathProgramCache]: Analyzing trace with hash -886441228, now seen corresponding path program 16 times [2022-02-10 22:26:08,476 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:08,476 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123810801] [2022-02-10 22:26:08,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:08,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:08,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:08,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:08,553 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:08,553 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123810801] [2022-02-10 22:26:08,553 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123810801] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:08,553 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:08,553 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-10 22:26:08,553 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514045351] [2022-02-10 22:26:08,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:08,553 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-10 22:26:08,553 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:08,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-10 22:26:08,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-02-10 22:26:08,554 INFO L87 Difference]: Start difference. First operand 12330 states and 42022 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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) [2022-02-10 22:26:08,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:08,827 INFO L93 Difference]: Finished difference Result 15893 states and 54075 transitions. [2022-02-10 22:26:08,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-10 22:26:08,828 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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 [2022-02-10 22:26:08,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:08,864 INFO L225 Difference]: With dead ends: 15893 [2022-02-10 22:26:08,864 INFO L226 Difference]: Without dead ends: 14312 [2022-02-10 22:26:08,864 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=117, Invalid=389, Unknown=0, NotChecked=0, Total=506 [2022-02-10 22:26:08,865 INFO L934 BasicCegarLoop]: 225 mSDtfsCounter, 222 mSDsluCounter, 1505 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 1637 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:08,865 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [222 Valid, 1637 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:26:08,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14312 states. [2022-02-10 22:26:09,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14312 to 12189. [2022-02-10 22:26:09,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12189 states, 12188 states have (on average 3.4136855923859533) internal successors, (41606), 12188 states have internal predecessors, (41606), 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) [2022-02-10 22:26:09,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12189 states to 12189 states and 41606 transitions. [2022-02-10 22:26:09,099 INFO L78 Accepts]: Start accepts. Automaton has 12189 states and 41606 transitions. Word has length 92 [2022-02-10 22:26:09,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:09,100 INFO L470 AbstractCegarLoop]: Abstraction has 12189 states and 41606 transitions. [2022-02-10 22:26:09,100 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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) [2022-02-10 22:26:09,100 INFO L276 IsEmpty]: Start isEmpty. Operand 12189 states and 41606 transitions. [2022-02-10 22:26:09,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-02-10 22:26:09,120 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:09,120 INFO L515 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] [2022-02-10 22:26:09,120 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-02-10 22:26:09,120 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:26:09,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:09,121 INFO L85 PathProgramCache]: Analyzing trace with hash -1623368678, now seen corresponding path program 17 times [2022-02-10 22:26:09,121 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:09,121 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682057379] [2022-02-10 22:26:09,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:09,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:09,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:09,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:09,181 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:09,181 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682057379] [2022-02-10 22:26:09,181 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1682057379] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:09,181 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:09,181 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-10 22:26:09,181 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246763930] [2022-02-10 22:26:09,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:09,181 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-10 22:26:09,181 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:09,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-10 22:26:09,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-02-10 22:26:09,182 INFO L87 Difference]: Start difference. First operand 12189 states and 41606 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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) [2022-02-10 22:26:09,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:09,462 INFO L93 Difference]: Finished difference Result 17169 states and 58014 transitions. [2022-02-10 22:26:09,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-02-10 22:26:09,463 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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 [2022-02-10 22:26:09,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:09,500 INFO L225 Difference]: With dead ends: 17169 [2022-02-10 22:26:09,500 INFO L226 Difference]: Without dead ends: 14872 [2022-02-10 22:26:09,500 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=184, Invalid=572, Unknown=0, NotChecked=0, Total=756 [2022-02-10 22:26:09,501 INFO L934 BasicCegarLoop]: 246 mSDtfsCounter, 477 mSDsluCounter, 1329 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 477 SdHoareTripleChecker+Valid, 1499 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:09,501 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [477 Valid, 1499 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:26:09,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14872 states. [2022-02-10 22:26:09,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14872 to 11903. [2022-02-10 22:26:09,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11903 states, 11902 states have (on average 3.384389178289363) internal successors, (40281), 11902 states have internal predecessors, (40281), 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) [2022-02-10 22:26:09,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11903 states to 11903 states and 40281 transitions. [2022-02-10 22:26:09,861 INFO L78 Accepts]: Start accepts. Automaton has 11903 states and 40281 transitions. Word has length 92 [2022-02-10 22:26:09,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:09,862 INFO L470 AbstractCegarLoop]: Abstraction has 11903 states and 40281 transitions. [2022-02-10 22:26:09,862 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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) [2022-02-10 22:26:09,862 INFO L276 IsEmpty]: Start isEmpty. Operand 11903 states and 40281 transitions. [2022-02-10 22:26:09,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-02-10 22:26:09,882 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:09,882 INFO L515 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] [2022-02-10 22:26:09,883 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-02-10 22:26:09,883 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:26:09,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:09,883 INFO L85 PathProgramCache]: Analyzing trace with hash 930419124, now seen corresponding path program 18 times [2022-02-10 22:26:09,883 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:09,883 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561100579] [2022-02-10 22:26:09,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:09,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:09,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:09,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:09,947 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:09,947 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561100579] [2022-02-10 22:26:09,947 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561100579] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:09,947 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:09,947 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-10 22:26:09,947 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107620628] [2022-02-10 22:26:09,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:09,947 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-10 22:26:09,947 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:09,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-10 22:26:09,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-02-10 22:26:09,948 INFO L87 Difference]: Start difference. First operand 11903 states and 40281 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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) [2022-02-10 22:26:10,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:10,263 INFO L93 Difference]: Finished difference Result 15760 states and 53235 transitions. [2022-02-10 22:26:10,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-02-10 22:26:10,263 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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 [2022-02-10 22:26:10,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:10,297 INFO L225 Difference]: With dead ends: 15760 [2022-02-10 22:26:10,297 INFO L226 Difference]: Without dead ends: 14088 [2022-02-10 22:26:10,297 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=155, Invalid=547, Unknown=0, NotChecked=0, Total=702 [2022-02-10 22:26:10,297 INFO L934 BasicCegarLoop]: 235 mSDtfsCounter, 364 mSDsluCounter, 1706 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 364 SdHoareTripleChecker+Valid, 1840 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:10,298 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [364 Valid, 1840 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:26:10,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14088 states. [2022-02-10 22:26:10,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14088 to 11950. [2022-02-10 22:26:10,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11950 states, 11949 states have (on average 3.381370826010545) internal successors, (40404), 11949 states have internal predecessors, (40404), 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) [2022-02-10 22:26:10,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11950 states to 11950 states and 40404 transitions. [2022-02-10 22:26:10,510 INFO L78 Accepts]: Start accepts. Automaton has 11950 states and 40404 transitions. Word has length 92 [2022-02-10 22:26:10,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:10,510 INFO L470 AbstractCegarLoop]: Abstraction has 11950 states and 40404 transitions. [2022-02-10 22:26:10,510 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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) [2022-02-10 22:26:10,510 INFO L276 IsEmpty]: Start isEmpty. Operand 11950 states and 40404 transitions. [2022-02-10 22:26:10,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-02-10 22:26:10,529 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:10,529 INFO L515 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] [2022-02-10 22:26:10,529 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-02-10 22:26:10,529 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:26:10,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:10,529 INFO L85 PathProgramCache]: Analyzing trace with hash -945995328, now seen corresponding path program 19 times [2022-02-10 22:26:10,529 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:10,530 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039497794] [2022-02-10 22:26:10,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:10,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:10,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:10,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:10,605 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:10,605 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039497794] [2022-02-10 22:26:10,605 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2039497794] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:10,605 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:10,605 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-10 22:26:10,605 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123945608] [2022-02-10 22:26:10,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:10,605 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-10 22:26:10,605 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:10,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-10 22:26:10,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-02-10 22:26:10,606 INFO L87 Difference]: Start difference. First operand 11950 states and 40404 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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) [2022-02-10 22:26:10,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:10,826 INFO L93 Difference]: Finished difference Result 15110 states and 50979 transitions. [2022-02-10 22:26:10,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-10 22:26:10,826 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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 [2022-02-10 22:26:10,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:10,863 INFO L225 Difference]: With dead ends: 15110 [2022-02-10 22:26:10,863 INFO L226 Difference]: Without dead ends: 13673 [2022-02-10 22:26:10,864 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=393, Unknown=0, NotChecked=0, Total=506 [2022-02-10 22:26:10,864 INFO L934 BasicCegarLoop]: 230 mSDtfsCounter, 262 mSDsluCounter, 1338 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 1485 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:10,864 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [262 Valid, 1485 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:26:10,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13673 states. [2022-02-10 22:26:11,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13673 to 11997. [2022-02-10 22:26:11,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11997 states, 11996 states have (on average 3.378376125375125) internal successors, (40527), 11996 states have internal predecessors, (40527), 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) [2022-02-10 22:26:11,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11997 states to 11997 states and 40527 transitions. [2022-02-10 22:26:11,142 INFO L78 Accepts]: Start accepts. Automaton has 11997 states and 40527 transitions. Word has length 92 [2022-02-10 22:26:11,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:11,143 INFO L470 AbstractCegarLoop]: Abstraction has 11997 states and 40527 transitions. [2022-02-10 22:26:11,143 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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) [2022-02-10 22:26:11,143 INFO L276 IsEmpty]: Start isEmpty. Operand 11997 states and 40527 transitions. [2022-02-10 22:26:11,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-02-10 22:26:11,163 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:11,163 INFO L515 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] [2022-02-10 22:26:11,163 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-02-10 22:26:11,163 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:26:11,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:11,164 INFO L85 PathProgramCache]: Analyzing trace with hash -22945382, now seen corresponding path program 20 times [2022-02-10 22:26:11,164 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:11,164 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765755751] [2022-02-10 22:26:11,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:11,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:11,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:11,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:11,223 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:11,223 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765755751] [2022-02-10 22:26:11,223 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765755751] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:11,223 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:11,223 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-10 22:26:11,223 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510968150] [2022-02-10 22:26:11,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:11,223 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-10 22:26:11,223 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:11,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-10 22:26:11,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-02-10 22:26:11,223 INFO L87 Difference]: Start difference. First operand 11997 states and 40527 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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) [2022-02-10 22:26:11,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:11,462 INFO L93 Difference]: Finished difference Result 14657 states and 49349 transitions. [2022-02-10 22:26:11,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-02-10 22:26:11,463 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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 [2022-02-10 22:26:11,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:11,495 INFO L225 Difference]: With dead ends: 14657 [2022-02-10 22:26:11,495 INFO L226 Difference]: Without dead ends: 12589 [2022-02-10 22:26:11,495 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=118, Invalid=344, Unknown=0, NotChecked=0, Total=462 [2022-02-10 22:26:11,495 INFO L934 BasicCegarLoop]: 228 mSDtfsCounter, 214 mSDsluCounter, 1616 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 1747 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:11,496 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [214 Valid, 1747 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:26:11,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12589 states. [2022-02-10 22:26:11,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12589 to 11213. [2022-02-10 22:26:11,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11213 states, 11212 states have (on average 3.3726364609347126) internal successors, (37814), 11212 states have internal predecessors, (37814), 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) [2022-02-10 22:26:11,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11213 states to 11213 states and 37814 transitions. [2022-02-10 22:26:11,724 INFO L78 Accepts]: Start accepts. Automaton has 11213 states and 37814 transitions. Word has length 92 [2022-02-10 22:26:11,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:11,724 INFO L470 AbstractCegarLoop]: Abstraction has 11213 states and 37814 transitions. [2022-02-10 22:26:11,725 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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) [2022-02-10 22:26:11,725 INFO L276 IsEmpty]: Start isEmpty. Operand 11213 states and 37814 transitions. [2022-02-10 22:26:11,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-02-10 22:26:11,743 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:11,743 INFO L515 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] [2022-02-10 22:26:11,743 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-02-10 22:26:11,743 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:26:11,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:11,743 INFO L85 PathProgramCache]: Analyzing trace with hash -993232860, now seen corresponding path program 1 times [2022-02-10 22:26:11,743 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:11,743 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537831649] [2022-02-10 22:26:11,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:11,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:11,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:11,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:11,799 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:11,799 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537831649] [2022-02-10 22:26:11,799 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537831649] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:11,799 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:11,799 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-10 22:26:11,800 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027007953] [2022-02-10 22:26:11,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:11,800 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-10 22:26:11,800 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:11,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-10 22:26:11,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-02-10 22:26:11,800 INFO L87 Difference]: Start difference. First operand 11213 states and 37814 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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) [2022-02-10 22:26:12,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:12,050 INFO L93 Difference]: Finished difference Result 15848 states and 52621 transitions. [2022-02-10 22:26:12,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-02-10 22:26:12,050 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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 [2022-02-10 22:26:12,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:12,082 INFO L225 Difference]: With dead ends: 15848 [2022-02-10 22:26:12,082 INFO L226 Difference]: Without dead ends: 13866 [2022-02-10 22:26:12,082 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=184, Invalid=572, Unknown=0, NotChecked=0, Total=756 [2022-02-10 22:26:12,082 INFO L934 BasicCegarLoop]: 255 mSDtfsCounter, 408 mSDsluCounter, 1389 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 408 SdHoareTripleChecker+Valid, 1550 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:12,082 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [408 Valid, 1550 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:26:12,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13866 states. [2022-02-10 22:26:12,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13866 to 11200. [2022-02-10 22:26:12,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11200 states, 11199 states have (on average 3.3528886507723903) internal successors, (37549), 11199 states have internal predecessors, (37549), 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) [2022-02-10 22:26:12,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11200 states to 11200 states and 37549 transitions. [2022-02-10 22:26:12,341 INFO L78 Accepts]: Start accepts. Automaton has 11200 states and 37549 transitions. Word has length 92 [2022-02-10 22:26:12,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:12,342 INFO L470 AbstractCegarLoop]: Abstraction has 11200 states and 37549 transitions. [2022-02-10 22:26:12,342 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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) [2022-02-10 22:26:12,342 INFO L276 IsEmpty]: Start isEmpty. Operand 11200 states and 37549 transitions. [2022-02-10 22:26:12,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-02-10 22:26:12,359 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:12,360 INFO L515 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] [2022-02-10 22:26:12,360 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-02-10 22:26:12,360 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:26:12,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:12,360 INFO L85 PathProgramCache]: Analyzing trace with hash -1677674984, now seen corresponding path program 2 times [2022-02-10 22:26:12,360 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:12,360 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064641749] [2022-02-10 22:26:12,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:12,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:12,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:12,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:12,437 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:12,437 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064641749] [2022-02-10 22:26:12,437 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064641749] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:12,437 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:12,437 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-10 22:26:12,437 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484160092] [2022-02-10 22:26:12,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:12,437 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-10 22:26:12,437 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:12,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-10 22:26:12,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-02-10 22:26:12,438 INFO L87 Difference]: Start difference. First operand 11200 states and 37549 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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) [2022-02-10 22:26:12,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:12,701 INFO L93 Difference]: Finished difference Result 14589 states and 48778 transitions. [2022-02-10 22:26:12,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-02-10 22:26:12,702 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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 [2022-02-10 22:26:12,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:12,735 INFO L225 Difference]: With dead ends: 14589 [2022-02-10 22:26:12,735 INFO L226 Difference]: Without dead ends: 13331 [2022-02-10 22:26:12,736 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=155, Invalid=547, Unknown=0, NotChecked=0, Total=702 [2022-02-10 22:26:12,736 INFO L934 BasicCegarLoop]: 236 mSDtfsCounter, 307 mSDsluCounter, 1531 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 307 SdHoareTripleChecker+Valid, 1670 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:12,736 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [307 Valid, 1670 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:26:12,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13331 states. [2022-02-10 22:26:12,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13331 to 11235. [2022-02-10 22:26:12,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11235 states, 11234 states have (on average 3.350453978992345) internal successors, (37639), 11234 states have internal predecessors, (37639), 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) [2022-02-10 22:26:12,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11235 states to 11235 states and 37639 transitions. [2022-02-10 22:26:12,956 INFO L78 Accepts]: Start accepts. Automaton has 11235 states and 37639 transitions. Word has length 92 [2022-02-10 22:26:12,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:12,956 INFO L470 AbstractCegarLoop]: Abstraction has 11235 states and 37639 transitions. [2022-02-10 22:26:12,956 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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) [2022-02-10 22:26:12,956 INFO L276 IsEmpty]: Start isEmpty. Operand 11235 states and 37639 transitions. [2022-02-10 22:26:12,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-02-10 22:26:12,975 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:12,975 INFO L515 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] [2022-02-10 22:26:12,975 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-02-10 22:26:12,975 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:26:12,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:12,975 INFO L85 PathProgramCache]: Analyzing trace with hash 627623296, now seen corresponding path program 3 times [2022-02-10 22:26:12,975 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:12,976 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032882980] [2022-02-10 22:26:12,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:12,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:12,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:13,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:13,038 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:13,038 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032882980] [2022-02-10 22:26:13,038 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1032882980] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:13,038 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:13,038 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-10 22:26:13,038 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893927954] [2022-02-10 22:26:13,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:13,038 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-10 22:26:13,038 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:13,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-10 22:26:13,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-02-10 22:26:13,039 INFO L87 Difference]: Start difference. First operand 11235 states and 37639 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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) [2022-02-10 22:26:13,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:13,259 INFO L93 Difference]: Finished difference Result 14014 states and 46818 transitions. [2022-02-10 22:26:13,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-02-10 22:26:13,259 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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 [2022-02-10 22:26:13,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:13,291 INFO L225 Difference]: With dead ends: 14014 [2022-02-10 22:26:13,292 INFO L226 Difference]: Without dead ends: 12937 [2022-02-10 22:26:13,292 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=118, Invalid=344, Unknown=0, NotChecked=0, Total=462 [2022-02-10 22:26:13,292 INFO L934 BasicCegarLoop]: 226 mSDtfsCounter, 196 mSDsluCounter, 1312 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 1459 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:13,292 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [196 Valid, 1459 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:26:13,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12937 states. [2022-02-10 22:26:13,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12937 to 11270. [2022-02-10 22:26:13,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11270 states, 11269 states have (on average 3.348034430739196) internal successors, (37729), 11269 states have internal predecessors, (37729), 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) [2022-02-10 22:26:13,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11270 states to 11270 states and 37729 transitions. [2022-02-10 22:26:13,586 INFO L78 Accepts]: Start accepts. Automaton has 11270 states and 37729 transitions. Word has length 92 [2022-02-10 22:26:13,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:13,586 INFO L470 AbstractCegarLoop]: Abstraction has 11270 states and 37729 transitions. [2022-02-10 22:26:13,586 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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) [2022-02-10 22:26:13,586 INFO L276 IsEmpty]: Start isEmpty. Operand 11270 states and 37729 transitions. [2022-02-10 22:26:13,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-02-10 22:26:13,605 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:13,605 INFO L515 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] [2022-02-10 22:26:13,605 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-02-10 22:26:13,605 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:26:13,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:13,605 INFO L85 PathProgramCache]: Analyzing trace with hash 1550673242, now seen corresponding path program 4 times [2022-02-10 22:26:13,605 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:13,605 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711014458] [2022-02-10 22:26:13,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:13,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:13,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:13,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:13,669 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:13,669 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711014458] [2022-02-10 22:26:13,669 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711014458] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:13,669 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:13,669 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-10 22:26:13,670 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047034807] [2022-02-10 22:26:13,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:13,670 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-10 22:26:13,670 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:13,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-10 22:26:13,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-02-10 22:26:13,670 INFO L87 Difference]: Start difference. First operand 11270 states and 37729 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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) [2022-02-10 22:26:13,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:13,914 INFO L93 Difference]: Finished difference Result 13807 states and 46074 transitions. [2022-02-10 22:26:13,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-10 22:26:13,914 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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 [2022-02-10 22:26:13,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:13,944 INFO L225 Difference]: With dead ends: 13807 [2022-02-10 22:26:13,944 INFO L226 Difference]: Without dead ends: 12514 [2022-02-10 22:26:13,945 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=393, Unknown=0, NotChecked=0, Total=506 [2022-02-10 22:26:13,945 INFO L934 BasicCegarLoop]: 227 mSDtfsCounter, 234 mSDsluCounter, 1643 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 1770 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:13,949 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [234 Valid, 1770 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:26:13,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12514 states. [2022-02-10 22:26:14,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12514 to 11057. [2022-02-10 22:26:14,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11057 states, 11056 states have (on average 3.3515738060781475) internal successors, (37055), 11056 states have internal predecessors, (37055), 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) [2022-02-10 22:26:14,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11057 states to 11057 states and 37055 transitions. [2022-02-10 22:26:14,166 INFO L78 Accepts]: Start accepts. Automaton has 11057 states and 37055 transitions. Word has length 92 [2022-02-10 22:26:14,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:14,166 INFO L470 AbstractCegarLoop]: Abstraction has 11057 states and 37055 transitions. [2022-02-10 22:26:14,166 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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) [2022-02-10 22:26:14,166 INFO L276 IsEmpty]: Start isEmpty. Operand 11057 states and 37055 transitions. [2022-02-10 22:26:14,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-02-10 22:26:14,185 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:14,185 INFO L515 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] [2022-02-10 22:26:14,185 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-02-10 22:26:14,185 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:26:14,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:14,185 INFO L85 PathProgramCache]: Analyzing trace with hash 1252458916, now seen corresponding path program 5 times [2022-02-10 22:26:14,185 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:14,185 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147557197] [2022-02-10 22:26:14,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:14,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:14,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:14,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:14,248 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:14,248 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147557197] [2022-02-10 22:26:14,248 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147557197] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:14,248 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:14,248 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-10 22:26:14,248 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62984807] [2022-02-10 22:26:14,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:14,248 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-10 22:26:14,248 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:14,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-10 22:26:14,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-02-10 22:26:14,249 INFO L87 Difference]: Start difference. First operand 11057 states and 37055 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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) [2022-02-10 22:26:14,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:14,505 INFO L93 Difference]: Finished difference Result 14571 states and 48754 transitions. [2022-02-10 22:26:14,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-02-10 22:26:14,506 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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 [2022-02-10 22:26:14,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:14,538 INFO L225 Difference]: With dead ends: 14571 [2022-02-10 22:26:14,538 INFO L226 Difference]: Without dead ends: 13319 [2022-02-10 22:26:14,538 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=138, Invalid=414, Unknown=0, NotChecked=0, Total=552 [2022-02-10 22:26:14,538 INFO L934 BasicCegarLoop]: 216 mSDtfsCounter, 253 mSDsluCounter, 1528 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 1655 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:14,539 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [253 Valid, 1655 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:26:14,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13319 states. [2022-02-10 22:26:14,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13319 to 11127. [2022-02-10 22:26:14,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11127 states, 11126 states have (on average 3.3498112529210857) internal successors, (37270), 11126 states have internal predecessors, (37270), 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) [2022-02-10 22:26:14,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11127 states to 11127 states and 37270 transitions. [2022-02-10 22:26:14,758 INFO L78 Accepts]: Start accepts. Automaton has 11127 states and 37270 transitions. Word has length 92 [2022-02-10 22:26:14,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:14,758 INFO L470 AbstractCegarLoop]: Abstraction has 11127 states and 37270 transitions. [2022-02-10 22:26:14,759 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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) [2022-02-10 22:26:14,759 INFO L276 IsEmpty]: Start isEmpty. Operand 11127 states and 37270 transitions. [2022-02-10 22:26:14,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-02-10 22:26:14,777 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:14,777 INFO L515 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] [2022-02-10 22:26:14,777 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-02-10 22:26:14,778 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:26:14,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:14,778 INFO L85 PathProgramCache]: Analyzing trace with hash -623955536, now seen corresponding path program 6 times [2022-02-10 22:26:14,778 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:14,778 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444310650] [2022-02-10 22:26:14,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:14,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:14,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:14,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:14,856 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:14,856 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444310650] [2022-02-10 22:26:14,856 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444310650] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:14,856 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:14,856 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-10 22:26:14,856 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661343138] [2022-02-10 22:26:14,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:14,856 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-10 22:26:14,856 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:14,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-10 22:26:14,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-02-10 22:26:14,857 INFO L87 Difference]: Start difference. First operand 11127 states and 37270 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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) [2022-02-10 22:26:15,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:15,163 INFO L93 Difference]: Finished difference Result 14326 states and 47949 transitions. [2022-02-10 22:26:15,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-10 22:26:15,163 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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 [2022-02-10 22:26:15,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:15,196 INFO L225 Difference]: With dead ends: 14326 [2022-02-10 22:26:15,196 INFO L226 Difference]: Without dead ends: 13249 [2022-02-10 22:26:15,196 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=117, Invalid=389, Unknown=0, NotChecked=0, Total=506 [2022-02-10 22:26:15,197 INFO L934 BasicCegarLoop]: 211 mSDtfsCounter, 209 mSDsluCounter, 1500 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 1624 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:15,197 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [209 Valid, 1624 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:26:15,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13249 states. [2022-02-10 22:26:15,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13249 to 11162. [2022-02-10 22:26:15,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11162 states, 11161 states have (on average 3.3473703073201326) internal successors, (37360), 11161 states have internal predecessors, (37360), 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) [2022-02-10 22:26:15,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11162 states to 11162 states and 37360 transitions. [2022-02-10 22:26:15,405 INFO L78 Accepts]: Start accepts. Automaton has 11162 states and 37360 transitions. Word has length 92 [2022-02-10 22:26:15,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:15,406 INFO L470 AbstractCegarLoop]: Abstraction has 11162 states and 37360 transitions. [2022-02-10 22:26:15,406 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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) [2022-02-10 22:26:15,406 INFO L276 IsEmpty]: Start isEmpty. Operand 11162 states and 37360 transitions. [2022-02-10 22:26:15,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-02-10 22:26:15,424 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:15,424 INFO L515 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] [2022-02-10 22:26:15,424 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-02-10 22:26:15,424 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:26:15,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:15,424 INFO L85 PathProgramCache]: Analyzing trace with hash 299094410, now seen corresponding path program 7 times [2022-02-10 22:26:15,424 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:15,424 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976692104] [2022-02-10 22:26:15,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:15,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:15,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:15,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:15,482 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:15,482 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976692104] [2022-02-10 22:26:15,482 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976692104] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:15,482 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:15,483 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-10 22:26:15,483 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691274548] [2022-02-10 22:26:15,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:15,483 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-10 22:26:15,483 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:15,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-10 22:26:15,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-02-10 22:26:15,483 INFO L87 Difference]: Start difference. First operand 11162 states and 37360 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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) [2022-02-10 22:26:15,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:15,708 INFO L93 Difference]: Finished difference Result 14119 states and 47205 transitions. [2022-02-10 22:26:15,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-10 22:26:15,708 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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 [2022-02-10 22:26:15,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:15,739 INFO L225 Difference]: With dead ends: 14119 [2022-02-10 22:26:15,739 INFO L226 Difference]: Without dead ends: 12969 [2022-02-10 22:26:15,740 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=100, Invalid=320, Unknown=0, NotChecked=0, Total=420 [2022-02-10 22:26:15,740 INFO L934 BasicCegarLoop]: 213 mSDtfsCounter, 194 mSDsluCounter, 1430 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 1555 SdHoareTripleChecker+Invalid, 248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:15,740 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [194 Valid, 1555 Invalid, 248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:26:15,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12969 states. [2022-02-10 22:26:15,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12969 to 11092. [2022-02-10 22:26:15,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11092 states, 11091 states have (on average 3.349111892525471) internal successors, (37145), 11091 states have internal predecessors, (37145), 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) [2022-02-10 22:26:15,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11092 states to 11092 states and 37145 transitions. [2022-02-10 22:26:15,966 INFO L78 Accepts]: Start accepts. Automaton has 11092 states and 37145 transitions. Word has length 92 [2022-02-10 22:26:15,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:15,966 INFO L470 AbstractCegarLoop]: Abstraction has 11092 states and 37145 transitions. [2022-02-10 22:26:15,966 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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) [2022-02-10 22:26:15,966 INFO L276 IsEmpty]: Start isEmpty. Operand 11092 states and 37145 transitions. [2022-02-10 22:26:15,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-02-10 22:26:15,985 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:15,985 INFO L515 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] [2022-02-10 22:26:15,985 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-02-10 22:26:15,985 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:26:15,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:15,986 INFO L85 PathProgramCache]: Analyzing trace with hash 1638991298, now seen corresponding path program 8 times [2022-02-10 22:26:15,986 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:15,986 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994726242] [2022-02-10 22:26:15,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:15,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:15,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:16,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:16,056 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:16,056 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994726242] [2022-02-10 22:26:16,056 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [994726242] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:16,056 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:16,056 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-10 22:26:16,056 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545137027] [2022-02-10 22:26:16,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:16,056 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-10 22:26:16,056 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:16,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-10 22:26:16,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-02-10 22:26:16,056 INFO L87 Difference]: Start difference. First operand 11092 states and 37145 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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) [2022-02-10 22:26:16,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:16,327 INFO L93 Difference]: Finished difference Result 14481 states and 48374 transitions. [2022-02-10 22:26:16,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-10 22:26:16,327 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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 [2022-02-10 22:26:16,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:16,361 INFO L225 Difference]: With dead ends: 14481 [2022-02-10 22:26:16,362 INFO L226 Difference]: Without dead ends: 13223 [2022-02-10 22:26:16,362 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=141, Invalid=459, Unknown=0, NotChecked=0, Total=600 [2022-02-10 22:26:16,362 INFO L934 BasicCegarLoop]: 218 mSDtfsCounter, 269 mSDsluCounter, 1447 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 1572 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:16,362 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [269 Valid, 1572 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:26:16,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13223 states. [2022-02-10 22:26:16,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13223 to 11127. [2022-02-10 22:26:16,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11127 states, 11126 states have (on average 3.3466654682725148) internal successors, (37235), 11126 states have internal predecessors, (37235), 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) [2022-02-10 22:26:16,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11127 states to 11127 states and 37235 transitions. [2022-02-10 22:26:16,603 INFO L78 Accepts]: Start accepts. Automaton has 11127 states and 37235 transitions. Word has length 92 [2022-02-10 22:26:16,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:16,603 INFO L470 AbstractCegarLoop]: Abstraction has 11127 states and 37235 transitions. [2022-02-10 22:26:16,603 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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) [2022-02-10 22:26:16,603 INFO L276 IsEmpty]: Start isEmpty. Operand 11127 states and 37235 transitions. [2022-02-10 22:26:16,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-02-10 22:26:16,622 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:16,622 INFO L515 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] [2022-02-10 22:26:16,623 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-02-10 22:26:16,623 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:26:16,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:16,623 INFO L85 PathProgramCache]: Analyzing trace with hash -350677718, now seen corresponding path program 9 times [2022-02-10 22:26:16,623 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:16,623 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408552613] [2022-02-10 22:26:16,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:16,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:16,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:16,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:16,701 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:16,701 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408552613] [2022-02-10 22:26:16,701 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1408552613] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:16,701 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:16,702 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-10 22:26:16,702 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818953796] [2022-02-10 22:26:16,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:16,702 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-10 22:26:16,702 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:16,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-10 22:26:16,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-02-10 22:26:16,702 INFO L87 Difference]: Start difference. First operand 11127 states and 37235 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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) [2022-02-10 22:26:16,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:16,932 INFO L93 Difference]: Finished difference Result 14011 states and 46789 transitions. [2022-02-10 22:26:16,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-10 22:26:16,932 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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 [2022-02-10 22:26:16,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:16,964 INFO L225 Difference]: With dead ends: 14011 [2022-02-10 22:26:16,964 INFO L226 Difference]: Without dead ends: 12934 [2022-02-10 22:26:16,964 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=110, Invalid=352, Unknown=0, NotChecked=0, Total=462 [2022-02-10 22:26:16,964 INFO L934 BasicCegarLoop]: 209 mSDtfsCounter, 198 mSDsluCounter, 1491 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 1613 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:16,964 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [198 Valid, 1613 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:26:16,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12934 states. [2022-02-10 22:26:17,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12934 to 11162. [2022-02-10 22:26:17,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11162 states, 11161 states have (on average 3.3442343875996774) internal successors, (37325), 11161 states have internal predecessors, (37325), 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) [2022-02-10 22:26:17,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11162 states to 11162 states and 37325 transitions. [2022-02-10 22:26:17,225 INFO L78 Accepts]: Start accepts. Automaton has 11162 states and 37325 transitions. Word has length 92 [2022-02-10 22:26:17,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:17,225 INFO L470 AbstractCegarLoop]: Abstraction has 11162 states and 37325 transitions. [2022-02-10 22:26:17,225 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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) [2022-02-10 22:26:17,225 INFO L276 IsEmpty]: Start isEmpty. Operand 11162 states and 37325 transitions. [2022-02-10 22:26:17,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-02-10 22:26:17,244 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:17,244 INFO L515 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] [2022-02-10 22:26:17,244 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-02-10 22:26:17,244 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:26:17,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:17,245 INFO L85 PathProgramCache]: Analyzing trace with hash 572372228, now seen corresponding path program 10 times [2022-02-10 22:26:17,245 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:17,245 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685419468] [2022-02-10 22:26:17,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:17,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:17,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:17,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:17,319 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:17,319 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685419468] [2022-02-10 22:26:17,319 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685419468] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:17,319 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:17,319 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-10 22:26:17,319 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642309959] [2022-02-10 22:26:17,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:17,319 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-10 22:26:17,319 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:17,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-10 22:26:17,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-02-10 22:26:17,320 INFO L87 Difference]: Start difference. First operand 11162 states and 37325 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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) [2022-02-10 22:26:17,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:17,564 INFO L93 Difference]: Finished difference Result 13699 states and 45670 transitions. [2022-02-10 22:26:17,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-10 22:26:17,564 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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 [2022-02-10 22:26:17,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:17,595 INFO L225 Difference]: With dead ends: 13699 [2022-02-10 22:26:17,595 INFO L226 Difference]: Without dead ends: 12371 [2022-02-10 22:26:17,595 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=105, Invalid=357, Unknown=0, NotChecked=0, Total=462 [2022-02-10 22:26:17,595 INFO L934 BasicCegarLoop]: 209 mSDtfsCounter, 208 mSDsluCounter, 1527 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 1641 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:17,596 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [208 Valid, 1641 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:26:17,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12371 states. [2022-02-10 22:26:17,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12371 to 10914. [2022-02-10 22:26:17,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10914 states, 10913 states have (on average 3.3502245028864657) internal successors, (36561), 10913 states have internal predecessors, (36561), 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) [2022-02-10 22:26:17,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10914 states to 10914 states and 36561 transitions. [2022-02-10 22:26:17,809 INFO L78 Accepts]: Start accepts. Automaton has 10914 states and 36561 transitions. Word has length 92 [2022-02-10 22:26:17,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:17,810 INFO L470 AbstractCegarLoop]: Abstraction has 10914 states and 36561 transitions. [2022-02-10 22:26:17,810 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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) [2022-02-10 22:26:17,810 INFO L276 IsEmpty]: Start isEmpty. Operand 10914 states and 36561 transitions. [2022-02-10 22:26:17,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-02-10 22:26:17,828 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:17,828 INFO L515 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] [2022-02-10 22:26:17,828 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-02-10 22:26:17,828 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:26:17,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:17,828 INFO L85 PathProgramCache]: Analyzing trace with hash 194020762, now seen corresponding path program 11 times [2022-02-10 22:26:17,828 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:17,828 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780241567] [2022-02-10 22:26:17,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:17,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:17,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:17,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:17,899 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:17,899 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780241567] [2022-02-10 22:26:17,899 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1780241567] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:17,899 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:17,899 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-10 22:26:17,899 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549478709] [2022-02-10 22:26:17,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:17,899 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-10 22:26:17,899 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:17,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-10 22:26:17,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-02-10 22:26:17,900 INFO L87 Difference]: Start difference. First operand 10914 states and 36561 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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) [2022-02-10 22:26:18,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:18,153 INFO L93 Difference]: Finished difference Result 15018 states and 49952 transitions. [2022-02-10 22:26:18,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-02-10 22:26:18,154 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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 [2022-02-10 22:26:18,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:18,186 INFO L225 Difference]: With dead ends: 15018 [2022-02-10 22:26:18,186 INFO L226 Difference]: Without dead ends: 13261 [2022-02-10 22:26:18,187 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=184, Invalid=572, Unknown=0, NotChecked=0, Total=756 [2022-02-10 22:26:18,187 INFO L934 BasicCegarLoop]: 240 mSDtfsCounter, 426 mSDsluCounter, 1436 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 426 SdHoareTripleChecker+Valid, 1591 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:18,187 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [426 Valid, 1591 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:26:18,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13261 states. [2022-02-10 22:26:18,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13261 to 10895. [2022-02-10 22:26:18,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10895 states, 10894 states have (on average 3.336699100422251) internal successors, (36350), 10894 states have internal predecessors, (36350), 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) [2022-02-10 22:26:18,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10895 states to 10895 states and 36350 transitions. [2022-02-10 22:26:18,416 INFO L78 Accepts]: Start accepts. Automaton has 10895 states and 36350 transitions. Word has length 92 [2022-02-10 22:26:18,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:18,416 INFO L470 AbstractCegarLoop]: Abstraction has 10895 states and 36350 transitions. [2022-02-10 22:26:18,416 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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) [2022-02-10 22:26:18,416 INFO L276 IsEmpty]: Start isEmpty. Operand 10895 states and 36350 transitions. [2022-02-10 22:26:18,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-02-10 22:26:18,435 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:18,435 INFO L515 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] [2022-02-10 22:26:18,435 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-02-10 22:26:18,435 INFO L402 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:26:18,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:18,436 INFO L85 PathProgramCache]: Analyzing trace with hash -1281106060, now seen corresponding path program 12 times [2022-02-10 22:26:18,436 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:18,436 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884960974] [2022-02-10 22:26:18,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:18,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:18,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:18,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:18,492 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:18,492 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884960974] [2022-02-10 22:26:18,492 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884960974] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:18,492 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:18,492 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-10 22:26:18,492 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011006158] [2022-02-10 22:26:18,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:18,492 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-10 22:26:18,492 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:18,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-10 22:26:18,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-02-10 22:26:18,493 INFO L87 Difference]: Start difference. First operand 10895 states and 36350 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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) [2022-02-10 22:26:18,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:18,755 INFO L93 Difference]: Finished difference Result 14113 states and 47093 transitions. [2022-02-10 22:26:18,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-02-10 22:26:18,755 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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 [2022-02-10 22:26:18,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:18,782 INFO L225 Difference]: With dead ends: 14113 [2022-02-10 22:26:18,782 INFO L226 Difference]: Without dead ends: 12861 [2022-02-10 22:26:18,782 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=155, Invalid=547, Unknown=0, NotChecked=0, Total=702 [2022-02-10 22:26:18,783 INFO L934 BasicCegarLoop]: 226 mSDtfsCounter, 316 mSDsluCounter, 1642 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 316 SdHoareTripleChecker+Valid, 1767 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:18,783 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [316 Valid, 1767 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:26:18,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12861 states. [2022-02-10 22:26:18,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12861 to 10930. [2022-02-10 22:26:18,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10930 states, 10929 states have (on average 3.3342483301308445) internal successors, (36440), 10929 states have internal predecessors, (36440), 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) [2022-02-10 22:26:18,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10930 states to 10930 states and 36440 transitions. [2022-02-10 22:26:18,980 INFO L78 Accepts]: Start accepts. Automaton has 10930 states and 36440 transitions. Word has length 92 [2022-02-10 22:26:18,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:18,980 INFO L470 AbstractCegarLoop]: Abstraction has 10930 states and 36440 transitions. [2022-02-10 22:26:18,981 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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) [2022-02-10 22:26:18,981 INFO L276 IsEmpty]: Start isEmpty. Operand 10930 states and 36440 transitions. [2022-02-10 22:26:18,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-02-10 22:26:18,998 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:18,998 INFO L515 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] [2022-02-10 22:26:18,998 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-02-10 22:26:18,998 INFO L402 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:26:18,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:18,998 INFO L85 PathProgramCache]: Analyzing trace with hash 1137446784, now seen corresponding path program 13 times [2022-02-10 22:26:18,998 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:18,998 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900304539] [2022-02-10 22:26:18,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:18,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:19,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:19,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:19,058 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:19,058 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900304539] [2022-02-10 22:26:19,058 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900304539] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:19,058 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:19,058 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-10 22:26:19,058 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142221902] [2022-02-10 22:26:19,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:19,059 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-10 22:26:19,059 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:19,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-10 22:26:19,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-02-10 22:26:19,059 INFO L87 Difference]: Start difference. First operand 10930 states and 36440 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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) [2022-02-10 22:26:19,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:19,348 INFO L93 Difference]: Finished difference Result 13623 states and 45413 transitions. [2022-02-10 22:26:19,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-10 22:26:19,348 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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 [2022-02-10 22:26:19,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:19,378 INFO L225 Difference]: With dead ends: 13623 [2022-02-10 22:26:19,378 INFO L226 Difference]: Without dead ends: 12546 [2022-02-10 22:26:19,378 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=393, Unknown=0, NotChecked=0, Total=506 [2022-02-10 22:26:19,379 INFO L934 BasicCegarLoop]: 221 mSDtfsCounter, 229 mSDsluCounter, 1444 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 1574 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:19,379 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [229 Valid, 1574 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:26:19,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12546 states. [2022-02-10 22:26:19,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12546 to 10965. [2022-02-10 22:26:19,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10965 states, 10964 states have (on average 3.3318132068588104) internal successors, (36530), 10964 states have internal predecessors, (36530), 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) [2022-02-10 22:26:19,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10965 states to 10965 states and 36530 transitions. [2022-02-10 22:26:19,582 INFO L78 Accepts]: Start accepts. Automaton has 10965 states and 36530 transitions. Word has length 92 [2022-02-10 22:26:19,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:19,582 INFO L470 AbstractCegarLoop]: Abstraction has 10965 states and 36530 transitions. [2022-02-10 22:26:19,582 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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) [2022-02-10 22:26:19,582 INFO L276 IsEmpty]: Start isEmpty. Operand 10965 states and 36530 transitions. [2022-02-10 22:26:19,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-02-10 22:26:19,600 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:19,600 INFO L515 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] [2022-02-10 22:26:19,600 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2022-02-10 22:26:19,600 INFO L402 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:26:19,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:19,601 INFO L85 PathProgramCache]: Analyzing trace with hash 2060496730, now seen corresponding path program 14 times [2022-02-10 22:26:19,601 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:19,601 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992818988] [2022-02-10 22:26:19,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:19,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:19,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:19,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:19,658 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:19,659 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992818988] [2022-02-10 22:26:19,659 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [992818988] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:19,659 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:19,659 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-10 22:26:19,659 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509764013] [2022-02-10 22:26:19,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:19,659 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-10 22:26:19,659 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:19,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-10 22:26:19,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-02-10 22:26:19,659 INFO L87 Difference]: Start difference. First operand 10965 states and 36530 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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) [2022-02-10 22:26:19,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:19,874 INFO L93 Difference]: Finished difference Result 13346 states and 44419 transitions. [2022-02-10 22:26:19,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-02-10 22:26:19,874 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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 [2022-02-10 22:26:19,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:19,900 INFO L225 Difference]: With dead ends: 13346 [2022-02-10 22:26:19,901 INFO L226 Difference]: Without dead ends: 12095 [2022-02-10 22:26:19,901 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=118, Invalid=344, Unknown=0, NotChecked=0, Total=462 [2022-02-10 22:26:19,901 INFO L934 BasicCegarLoop]: 219 mSDtfsCounter, 191 mSDsluCounter, 1561 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 1683 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:19,901 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [191 Valid, 1683 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:26:19,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12095 states. [2022-02-10 22:26:20,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12095 to 10794. [2022-02-10 22:26:20,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10794 states, 10793 states have (on average 3.333827480774576) internal successors, (35982), 10793 states have internal predecessors, (35982), 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) [2022-02-10 22:26:20,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10794 states to 10794 states and 35982 transitions. [2022-02-10 22:26:20,097 INFO L78 Accepts]: Start accepts. Automaton has 10794 states and 35982 transitions. Word has length 92 [2022-02-10 22:26:20,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:20,097 INFO L470 AbstractCegarLoop]: Abstraction has 10794 states and 35982 transitions. [2022-02-10 22:26:20,097 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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) [2022-02-10 22:26:20,097 INFO L276 IsEmpty]: Start isEmpty. Operand 10794 states and 35982 transitions. [2022-02-10 22:26:20,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-02-10 22:26:20,115 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:20,115 INFO L515 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] [2022-02-10 22:26:20,115 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2022-02-10 22:26:20,115 INFO L402 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:26:20,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:20,115 INFO L85 PathProgramCache]: Analyzing trace with hash -2078395914, now seen corresponding path program 15 times [2022-02-10 22:26:20,115 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:20,115 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734678350] [2022-02-10 22:26:20,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:20,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:20,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:20,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:20,190 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:20,190 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734678350] [2022-02-10 22:26:20,190 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734678350] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:20,190 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:20,190 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-10 22:26:20,190 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844188733] [2022-02-10 22:26:20,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:20,190 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-10 22:26:20,190 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:20,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-10 22:26:20,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-02-10 22:26:20,191 INFO L87 Difference]: Start difference. First operand 10794 states and 35982 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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) [2022-02-10 22:26:20,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:20,429 INFO L93 Difference]: Finished difference Result 13820 states and 46037 transitions. [2022-02-10 22:26:20,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-10 22:26:20,430 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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 [2022-02-10 22:26:20,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:20,459 INFO L225 Difference]: With dead ends: 13820 [2022-02-10 22:26:20,459 INFO L226 Difference]: Without dead ends: 12568 [2022-02-10 22:26:20,460 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=141, Invalid=459, Unknown=0, NotChecked=0, Total=600 [2022-02-10 22:26:20,460 INFO L934 BasicCegarLoop]: 213 mSDtfsCounter, 290 mSDsluCounter, 1410 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 1536 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:20,460 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [290 Valid, 1536 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:26:20,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12568 states. [2022-02-10 22:26:20,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12568 to 10781. [2022-02-10 22:26:20,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10781 states, 10780 states have (on average 3.3302411873840447) internal successors, (35900), 10780 states have internal predecessors, (35900), 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) [2022-02-10 22:26:20,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10781 states to 10781 states and 35900 transitions. [2022-02-10 22:26:20,659 INFO L78 Accepts]: Start accepts. Automaton has 10781 states and 35900 transitions. Word has length 92 [2022-02-10 22:26:20,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:20,659 INFO L470 AbstractCegarLoop]: Abstraction has 10781 states and 35900 transitions. [2022-02-10 22:26:20,659 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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) [2022-02-10 22:26:20,659 INFO L276 IsEmpty]: Start isEmpty. Operand 10781 states and 35900 transitions. [2022-02-10 22:26:20,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-02-10 22:26:20,677 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:20,677 INFO L515 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] [2022-02-10 22:26:20,677 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2022-02-10 22:26:20,677 INFO L402 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:26:20,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:20,677 INFO L85 PathProgramCache]: Analyzing trace with hash 340156930, now seen corresponding path program 16 times [2022-02-10 22:26:20,677 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:20,677 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372097437] [2022-02-10 22:26:20,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:20,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:20,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:20,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:20,736 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:20,736 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372097437] [2022-02-10 22:26:20,736 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372097437] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:20,736 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:20,736 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-10 22:26:20,736 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029652661] [2022-02-10 22:26:20,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:20,737 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-10 22:26:20,737 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:20,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-10 22:26:20,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-02-10 22:26:20,737 INFO L87 Difference]: Start difference. First operand 10781 states and 35900 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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) [2022-02-10 22:26:20,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:20,954 INFO L93 Difference]: Finished difference Result 13647 states and 45478 transitions. [2022-02-10 22:26:20,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-10 22:26:20,954 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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 [2022-02-10 22:26:20,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:20,985 INFO L225 Difference]: With dead ends: 13647 [2022-02-10 22:26:20,985 INFO L226 Difference]: Without dead ends: 12570 [2022-02-10 22:26:20,985 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=105, Invalid=357, Unknown=0, NotChecked=0, Total=462 [2022-02-10 22:26:20,985 INFO L934 BasicCegarLoop]: 208 mSDtfsCounter, 233 mSDsluCounter, 1384 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 1506 SdHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:20,985 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [233 Valid, 1506 Invalid, 240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:26:21,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12570 states. [2022-02-10 22:26:21,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12570 to 10816. [2022-02-10 22:26:21,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10816 states, 10815 states have (on average 3.327785483125289) internal successors, (35990), 10815 states have internal predecessors, (35990), 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) [2022-02-10 22:26:21,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10816 states to 10816 states and 35990 transitions. [2022-02-10 22:26:21,198 INFO L78 Accepts]: Start accepts. Automaton has 10816 states and 35990 transitions. Word has length 92 [2022-02-10 22:26:21,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:21,198 INFO L470 AbstractCegarLoop]: Abstraction has 10816 states and 35990 transitions. [2022-02-10 22:26:21,198 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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) [2022-02-10 22:26:21,198 INFO L276 IsEmpty]: Start isEmpty. Operand 10816 states and 35990 transitions. [2022-02-10 22:26:21,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-02-10 22:26:21,216 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:21,216 INFO L515 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] [2022-02-10 22:26:21,216 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2022-02-10 22:26:21,216 INFO L402 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:26:21,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:21,216 INFO L85 PathProgramCache]: Analyzing trace with hash 1263206876, now seen corresponding path program 17 times [2022-02-10 22:26:21,217 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:21,217 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636477900] [2022-02-10 22:26:21,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:21,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:21,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:21,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:21,284 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:21,284 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636477900] [2022-02-10 22:26:21,284 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636477900] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:21,284 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:21,284 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-10 22:26:21,284 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270917824] [2022-02-10 22:26:21,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:21,285 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-10 22:26:21,285 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:21,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-10 22:26:21,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-02-10 22:26:21,285 INFO L87 Difference]: Start difference. First operand 10816 states and 35990 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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) [2022-02-10 22:26:21,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:21,531 INFO L93 Difference]: Finished difference Result 13440 states and 44734 transitions. [2022-02-10 22:26:21,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-10 22:26:21,531 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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 [2022-02-10 22:26:21,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:21,616 INFO L225 Difference]: With dead ends: 13440 [2022-02-10 22:26:21,616 INFO L226 Difference]: Without dead ends: 12290 [2022-02-10 22:26:21,616 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=110, Invalid=352, Unknown=0, NotChecked=0, Total=462 [2022-02-10 22:26:21,618 INFO L934 BasicCegarLoop]: 210 mSDtfsCounter, 178 mSDsluCounter, 1526 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 1638 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:21,618 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [178 Valid, 1638 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:26:21,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12290 states. [2022-02-10 22:26:21,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12290 to 10746. [2022-02-10 22:26:21,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10746 states, 10745 states have (on average 3.329455560725919) internal successors, (35775), 10745 states have internal predecessors, (35775), 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) [2022-02-10 22:26:21,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10746 states to 10746 states and 35775 transitions. [2022-02-10 22:26:21,797 INFO L78 Accepts]: Start accepts. Automaton has 10746 states and 35775 transitions. Word has length 92 [2022-02-10 22:26:21,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:21,797 INFO L470 AbstractCegarLoop]: Abstraction has 10746 states and 35775 transitions. [2022-02-10 22:26:21,798 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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) [2022-02-10 22:26:21,798 INFO L276 IsEmpty]: Start isEmpty. Operand 10746 states and 35775 transitions. [2022-02-10 22:26:21,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-02-10 22:26:21,815 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:21,815 INFO L515 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] [2022-02-10 22:26:21,815 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2022-02-10 22:26:21,815 INFO L402 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:26:21,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:21,816 INFO L85 PathProgramCache]: Analyzing trace with hash -1691863532, now seen corresponding path program 18 times [2022-02-10 22:26:21,816 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:21,816 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517949312] [2022-02-10 22:26:21,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:21,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:21,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:21,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:21,876 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:21,876 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517949312] [2022-02-10 22:26:21,876 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517949312] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:21,876 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:21,876 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-10 22:26:21,876 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805825770] [2022-02-10 22:26:21,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:21,877 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-10 22:26:21,877 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:21,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-10 22:26:21,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-02-10 22:26:21,877 INFO L87 Difference]: Start difference. First operand 10746 states and 35775 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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) [2022-02-10 22:26:22,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:22,114 INFO L93 Difference]: Finished difference Result 13706 states and 45575 transitions. [2022-02-10 22:26:22,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-02-10 22:26:22,115 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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 [2022-02-10 22:26:22,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:22,146 INFO L225 Difference]: With dead ends: 13706 [2022-02-10 22:26:22,146 INFO L226 Difference]: Without dead ends: 12448 [2022-02-10 22:26:22,146 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=138, Invalid=414, Unknown=0, NotChecked=0, Total=552 [2022-02-10 22:26:22,146 INFO L934 BasicCegarLoop]: 212 mSDtfsCounter, 244 mSDsluCounter, 1199 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 1330 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:22,147 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [244 Valid, 1330 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:26:22,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12448 states. [2022-02-10 22:26:22,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12448 to 10733. [2022-02-10 22:26:22,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10733 states, 10732 states have (on average 3.325847931420052) internal successors, (35693), 10732 states have internal predecessors, (35693), 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) [2022-02-10 22:26:22,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10733 states to 10733 states and 35693 transitions. [2022-02-10 22:26:22,372 INFO L78 Accepts]: Start accepts. Automaton has 10733 states and 35693 transitions. Word has length 92 [2022-02-10 22:26:22,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:22,372 INFO L470 AbstractCegarLoop]: Abstraction has 10733 states and 35693 transitions. [2022-02-10 22:26:22,372 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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) [2022-02-10 22:26:22,372 INFO L276 IsEmpty]: Start isEmpty. Operand 10733 states and 35693 transitions. [2022-02-10 22:26:22,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-02-10 22:26:22,391 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:22,391 INFO L515 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] [2022-02-10 22:26:22,391 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2022-02-10 22:26:22,391 INFO L402 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:26:22,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:22,391 INFO L85 PathProgramCache]: Analyzing trace with hash 613434748, now seen corresponding path program 19 times [2022-02-10 22:26:22,391 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:22,391 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82945437] [2022-02-10 22:26:22,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:22,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:22,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:22,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:22,448 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:22,448 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82945437] [2022-02-10 22:26:22,448 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82945437] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:22,449 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:22,449 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-10 22:26:22,449 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756897329] [2022-02-10 22:26:22,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:22,449 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-10 22:26:22,449 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:22,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-10 22:26:22,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-02-10 22:26:22,449 INFO L87 Difference]: Start difference. First operand 10733 states and 35693 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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) [2022-02-10 22:26:22,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:22,649 INFO L93 Difference]: Finished difference Result 13260 states and 44072 transitions. [2022-02-10 22:26:22,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-10 22:26:22,650 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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 [2022-02-10 22:26:22,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:22,674 INFO L225 Difference]: With dead ends: 13260 [2022-02-10 22:26:22,674 INFO L226 Difference]: Without dead ends: 12183 [2022-02-10 22:26:22,675 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=100, Invalid=320, Unknown=0, NotChecked=0, Total=420 [2022-02-10 22:26:22,675 INFO L934 BasicCegarLoop]: 205 mSDtfsCounter, 222 mSDsluCounter, 1247 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 1372 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:22,675 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [222 Valid, 1372 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:26:22,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12183 states. [2022-02-10 22:26:22,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12183 to 10720. [2022-02-10 22:26:22,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10720 states, 10719 states have (on average 3.322231551450695) internal successors, (35611), 10719 states have internal predecessors, (35611), 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) [2022-02-10 22:26:22,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10720 states to 10720 states and 35611 transitions. [2022-02-10 22:26:22,858 INFO L78 Accepts]: Start accepts. Automaton has 10720 states and 35611 transitions. Word has length 92 [2022-02-10 22:26:22,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:22,858 INFO L470 AbstractCegarLoop]: Abstraction has 10720 states and 35611 transitions. [2022-02-10 22:26:22,859 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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) [2022-02-10 22:26:22,859 INFO L276 IsEmpty]: Start isEmpty. Operand 10720 states and 35611 transitions. [2022-02-10 22:26:22,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-02-10 22:26:22,876 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:22,876 INFO L515 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] [2022-02-10 22:26:22,876 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2022-02-10 22:26:22,876 INFO L402 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:26:22,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:22,876 INFO L85 PathProgramCache]: Analyzing trace with hash 1536484694, now seen corresponding path program 20 times [2022-02-10 22:26:22,876 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:22,876 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118800193] [2022-02-10 22:26:22,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:22,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:22,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:22,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:22,949 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:22,949 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118800193] [2022-02-10 22:26:22,949 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118800193] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:22,949 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:22,949 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-10 22:26:22,949 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795664970] [2022-02-10 22:26:22,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:22,950 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-10 22:26:22,950 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:22,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-10 22:26:22,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-02-10 22:26:22,950 INFO L87 Difference]: Start difference. First operand 10720 states and 35611 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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) [2022-02-10 22:26:23,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:23,171 INFO L93 Difference]: Finished difference Result 12780 states and 42403 transitions. [2022-02-10 22:26:23,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-10 22:26:23,171 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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 [2022-02-10 22:26:23,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:23,197 INFO L225 Difference]: With dead ends: 12780 [2022-02-10 22:26:23,198 INFO L226 Difference]: Without dead ends: 11031 [2022-02-10 22:26:23,198 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=117, Invalid=389, Unknown=0, NotChecked=0, Total=506 [2022-02-10 22:26:23,198 INFO L934 BasicCegarLoop]: 205 mSDtfsCounter, 192 mSDsluCounter, 1490 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 1598 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:23,198 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [192 Valid, 1598 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:26:23,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11031 states. [2022-02-10 22:26:23,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11031 to 9811. [2022-02-10 22:26:23,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9811 states, 9810 states have (on average 3.3493374108053007) internal successors, (32857), 9810 states have internal predecessors, (32857), 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) [2022-02-10 22:26:23,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9811 states to 9811 states and 32857 transitions. [2022-02-10 22:26:23,395 INFO L78 Accepts]: Start accepts. Automaton has 9811 states and 32857 transitions. Word has length 92 [2022-02-10 22:26:23,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:23,395 INFO L470 AbstractCegarLoop]: Abstraction has 9811 states and 32857 transitions. [2022-02-10 22:26:23,396 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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) [2022-02-10 22:26:23,396 INFO L276 IsEmpty]: Start isEmpty. Operand 9811 states and 32857 transitions. [2022-02-10 22:26:23,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-02-10 22:26:23,412 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:23,412 INFO L515 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] [2022-02-10 22:26:23,412 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2022-02-10 22:26:23,412 INFO L402 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:26:23,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:23,413 INFO L85 PathProgramCache]: Analyzing trace with hash 2094815998, now seen corresponding path program 1 times [2022-02-10 22:26:23,413 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:23,413 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026255077] [2022-02-10 22:26:23,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:23,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:23,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:23,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:23,455 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:23,455 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026255077] [2022-02-10 22:26:23,455 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026255077] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:23,455 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:23,455 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-10 22:26:23,455 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719998577] [2022-02-10 22:26:23,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:23,456 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-10 22:26:23,456 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:23,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-10 22:26:23,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-02-10 22:26:23,456 INFO L87 Difference]: Start difference. First operand 9811 states and 32857 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) [2022-02-10 22:26:23,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:23,567 INFO L93 Difference]: Finished difference Result 12494 states and 41514 transitions. [2022-02-10 22:26:23,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-10 22:26:23,568 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 [2022-02-10 22:26:23,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:23,583 INFO L225 Difference]: With dead ends: 12494 [2022-02-10 22:26:23,583 INFO L226 Difference]: Without dead ends: 6451 [2022-02-10 22:26:23,583 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2022-02-10 22:26:23,583 INFO L934 BasicCegarLoop]: 199 mSDtfsCounter, 100 mSDsluCounter, 895 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 1044 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:23,583 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [100 Valid, 1044 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 22:26:23,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6451 states. [2022-02-10 22:26:23,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6451 to 6451. [2022-02-10 22:26:23,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6451 states, 6450 states have (on average 3.293953488372093) internal successors, (21246), 6450 states have internal predecessors, (21246), 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) [2022-02-10 22:26:23,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6451 states to 6451 states and 21246 transitions. [2022-02-10 22:26:23,697 INFO L78 Accepts]: Start accepts. Automaton has 6451 states and 21246 transitions. Word has length 92 [2022-02-10 22:26:23,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:23,697 INFO L470 AbstractCegarLoop]: Abstraction has 6451 states and 21246 transitions. [2022-02-10 22:26:23,697 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) [2022-02-10 22:26:23,697 INFO L276 IsEmpty]: Start isEmpty. Operand 6451 states and 21246 transitions. [2022-02-10 22:26:23,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-02-10 22:26:23,708 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:23,708 INFO L515 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] [2022-02-10 22:26:23,708 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2022-02-10 22:26:23,708 INFO L402 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:26:23,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:23,709 INFO L85 PathProgramCache]: Analyzing trace with hash -1025597634, now seen corresponding path program 1 times [2022-02-10 22:26:23,709 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:23,709 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358681122] [2022-02-10 22:26:23,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:23,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:23,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:23,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:23,743 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:23,743 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358681122] [2022-02-10 22:26:23,744 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358681122] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:23,744 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:23,744 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-10 22:26:23,744 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145490587] [2022-02-10 22:26:23,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:23,744 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-10 22:26:23,744 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:23,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-10 22:26:23,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-02-10 22:26:23,744 INFO L87 Difference]: Start difference. First operand 6451 states and 21246 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) [2022-02-10 22:26:23,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:23,824 INFO L93 Difference]: Finished difference Result 6442 states and 21237 transitions. [2022-02-10 22:26:23,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-10 22:26:23,824 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 [2022-02-10 22:26:23,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:23,824 INFO L225 Difference]: With dead ends: 6442 [2022-02-10 22:26:23,824 INFO L226 Difference]: Without dead ends: 0 [2022-02-10 22:26:23,824 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2022-02-10 22:26:23,824 INFO L934 BasicCegarLoop]: 184 mSDtfsCounter, 100 mSDsluCounter, 809 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 946 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:23,824 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [100 Valid, 946 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 22:26:23,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-02-10 22:26:23,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-02-10 22:26:23,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:23,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-02-10 22:26:23,825 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 92 [2022-02-10 22:26:23,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:23,825 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-02-10 22:26:23,825 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) [2022-02-10 22:26:23,825 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-02-10 22:26:23,825 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-10 22:26:23,827 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-02-10 22:26:23,827 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2022-02-10 22:26:23,827 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2022-02-10 22:26:23,827 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2022-02-10 22:26:23,827 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2022-02-10 22:26:23,829 INFO L733 BasicCegarLoop]: Path program histogram: [20, 20, 12, 10, 8, 7, 1, 1, 1] [2022-02-10 22:26:23,831 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-10 22:26:23,831 INFO L184 ceAbstractionStarter]: Computing trace abstraction results [2022-02-10 22:26:23,833 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.02 10:26:23 BasicIcfg [2022-02-10 22:26:23,833 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-10 22:26:23,835 INFO L158 Benchmark]: Toolchain (without parser) took 65006.80ms. Allocated memory was 219.2MB in the beginning and 7.1GB in the end (delta: 6.8GB). Free memory was 163.0MB in the beginning and 4.0GB in the end (delta: -3.8GB). Peak memory consumption was 3.0GB. Max. memory is 8.0GB. [2022-02-10 22:26:23,837 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 219.2MB. Free memory is still 178.9MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-10 22:26:23,837 INFO L158 Benchmark]: CACSL2BoogieTranslator took 185.71ms. Allocated memory was 219.2MB in the beginning and 399.5MB in the end (delta: 180.4MB). Free memory was 162.7MB in the beginning and 370.9MB in the end (delta: -208.1MB). Peak memory consumption was 6.5MB. Max. memory is 8.0GB. [2022-02-10 22:26:23,838 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.06ms. Allocated memory is still 399.5MB. Free memory was 370.9MB in the beginning and 369.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-02-10 22:26:23,839 INFO L158 Benchmark]: Boogie Preprocessor took 16.37ms. Allocated memory is still 399.5MB. Free memory was 369.3MB in the beginning and 368.2MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-10 22:26:23,842 INFO L158 Benchmark]: RCFGBuilder took 359.59ms. Allocated memory is still 399.5MB. Free memory was 367.7MB in the beginning and 353.6MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2022-02-10 22:26:23,842 INFO L158 Benchmark]: TraceAbstraction took 64409.49ms. Allocated memory was 399.5MB in the beginning and 7.1GB in the end (delta: 6.7GB). Free memory was 353.0MB in the beginning and 4.0GB in the end (delta: -3.6GB). Peak memory consumption was 3.0GB. Max. memory is 8.0GB. [2022-02-10 22:26:23,844 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 219.2MB. Free memory is still 178.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 185.71ms. Allocated memory was 219.2MB in the beginning and 399.5MB in the end (delta: 180.4MB). Free memory was 162.7MB in the beginning and 370.9MB in the end (delta: -208.1MB). Peak memory consumption was 6.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 31.06ms. Allocated memory is still 399.5MB. Free memory was 370.9MB in the beginning and 369.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 16.37ms. Allocated memory is still 399.5MB. Free memory was 369.3MB in the beginning and 368.2MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 359.59ms. Allocated memory is still 399.5MB. Free memory was 367.7MB in the beginning and 353.6MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * TraceAbstraction took 64409.49ms. Allocated memory was 399.5MB in the beginning and 7.1GB in the end (delta: 6.7GB). Free memory was 353.0MB in the beginning and 4.0GB in the end (delta: -3.6GB). Peak memory consumption was 3.0GB. Max. memory is 8.0GB. * 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 - PositiveResult [Line: 77]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 156 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 64.3s, OverallIterations: 80, TraceHistogramMax: 1, PathProgramHistogramMax: 20, EmptinessCheckTime: 2.4s, AutomataDifference: 26.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.3s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 19736 SdHoareTripleChecker+Valid, 6.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 19736 mSDsluCounter, 85592 SdHoareTripleChecker+Invalid, 5.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 73149 mSDsCounter, 365 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 13393 IncrementalHoareTripleChecker+Invalid, 13758 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 365 mSolverCounterUnsat, 17004 mSDtfsCounter, 13393 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1721 GetRequests, 684 SyntacticMatches, 0 SemanticMatches, 1037 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3642 ImplicationChecksByTransitivity, 5.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16772occurred in iteration=5, InterpolantAutomatonStates: 998, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 29.2s AutomataMinimizationTime, 80 MinimizatonAttempts, 551412 StatesRemovedByMinimization, 78 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 4.8s InterpolantComputationTime, 7282 NumberOfCodeBlocks, 7282 NumberOfCodeBlocksAsserted, 80 NumberOfCheckSat, 7202 ConstructedInterpolants, 0 QuantifiedInterpolants, 34218 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 80 InterpolantComputations, 80 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-02-10 22:26:23,866 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...